curved lcd panel factory

Curved displays are one of the most popular displays by browsing through social media platforms, customizing LED content and a new way to display a wide range of curved displays. Curved lcd panels are one of the most popular and browsing social media platforms, curved displays have become very popular in browsing through social media.

Wholesalers can use the curved lcd panel to display more functions using a smartphone. curved lcd panels are one of the most widely used online tools.

We follow our enterprise spirit of Quality, Efficiency, Innovation and Integrity. We aim to create much more worth for our buyers with our abundant resources, highly developed machinery, experienced workers and great providers for Curved Touch Panel, 75 Interactive Touch Screen, Touch Screen Tft Lcd, Lcd Touch Panel,32 Touch Screen Overlay. We are sincerely looking forward to cooperate with customers all over the world. We believe we can satisfy you. We also warmly welcome customers to visit our company and purchase our products. The product will supply to all over the world, such as Europe, America, Australia,Oslo, Costa rica,Kazakhstan, Hanover.We solution have passed through the national skilled certification and been well received in our key industry. Our specialist engineering team will often be ready to serve you for consultation and feedback. We"ve been able to also provide you with no cost samples to meet your needs. Best efforts are going to be produced to supply you the very best service and solutions. For anyone who is considering our business and solutions, please speak to us by sending us emails or get in touch with us right away. As a way to know our items and enterprise. lot more, you"ll be able to come to our factory to find out it. We"ll constantly welcome guests from around the globe to our firm. o build enterprise. elations with us. You should really feel absolutely free to make contact with us for small business and we believe we"ll share the top trading practical experience with all our merchants.

Our mission should be to turn out to be an innovative supplier of high-tech digital and communication devices by furnishing benefit added design and style, world-class manufacturing, and repair capabilities for Curved Lcd, Tft Lcd Touch Screen Display, Big Lcd Panel, Tft Monochrome Display,Active Matrix Tft Color Lcd. We welcome new and previous customers from all walks of lifetime to speak to us for future organization relationships and mutual achievement! The product will supply to all over the world, such as Europe, America, Australia,USA, Colombia,Ghana, Mumbai.Satisfaction and good credit to every customer is our priority. We focus on every detail of order processing for customers till they have received safe and sound products with good logistics service and economical cost. Depending on this, our products are sold very well in the countries in Africa, the Mid-East and Southeast Asia.

With high-quality monitor 43 inch curved, bluetooth card reader, casino card reader, reasonable prices and good after-sales service, we have won the praise of many friends.Our company pursues the idea that we should change if we want to make progress and we should constantly improve our products if we want to have better curved lcd panel. We are committed to providing our customers with better service, higher quality products, more competitive prices and more timely shipping. The company has a team of high-quality corporate talents. Under the guidance of scientific corporate philosophy, it has formed an elite team with great team spirit, full of vitality and great execution ability. On the basis of fully introducing and absorbing domestic and foreign technologies, we have successfully developed many high-quality products. The company has strong strength, perfect quality assurance, reasonable price and high-quality service, which has won the affirmation and trust of users from all walks of life at home and abroad and people in the industry. We identify talents with emphasis on quality, performance and ability, use talents to implement a full post appointment system, and insist on matching job duties with personnel quality conditions. In the process of continuous development in these years, we have been thinking about the value of our own survival, we have always stood in the objective angle to measure the significance of our existence.

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Before you start shopping for the best curved monitor for your needs, first consider what size makes the most sense for your space and computing purposes. While a 27-inch curved...

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An industrial HD LCD panel with energy-saving LED technology, A+-quality, wide viewing angle and capacitive multi- touch panel, makes these the perfect interactive Touch solution for digital signage, way-finding, classrooms, dealerships, supermarkets, hotels, sports arenas, fashion shows, industrial 4.0 projects, interactive visualisations and many other uses.

Owing to excellent sales performances of curved gaming monitors and Samsung’s aggressive promotional push, curved monitor shipment is projected to reach 12.86 million units in 2020, a 24% increase YoY, according to TrendForce’s latest investigations.

TrendForce analyst Anita Wang indicates that the curved monitor market is both hypercompetitive and highly concentrated, in terms of having very few monitor brands and display panel suppliers. Furthermore, since the manufacturing process is more complex for curved monitors than for flat screen monitors, enormous experience in the industry is required to achieve a high yield rate. Regarding the ranking of manufacturers’ curved monitor shipment in 2020, Samsung ranks first, supported by its in-house manufacturing facilities and by SDC’s panel capacities. AOC/Philips ranks second in shipment, due to the companies’ in-house manufacturing competencies and vast experience in the industry, as well as high sales performances of their curved gaming monitors. Third-ranked MSI is focused on the high-end curved gaming monitor segment. Despite the lack of in-house manufacturing capacities, MSI’s curved monitors are equipped with high-performance specs and features; as well, the company offers a comprehensive line of gaming products. MSI also released its products to coincide with the start of curved gaming monitors’ popularity in the market. MSI and Samsung are neck and neck in curved gaming monitor market share. The above three competitors (Samsung, AOC/Philips, and MSI) are projected to occupy almost 70% market share collectively in 2020.

With regards to display panel suppliers, SDC’s recent efforts in expanding its presence in the curved monitor and gaming monitor markets have been successful. In 2019, Samsung reached an 81% share in the VA curved monitor market, but the company subsequently decided to exit the market despite its leading performance. The curved monitor supply chain is expected to be impacted in 2021 as a result of Samsung’s exodus. On the other hand, second- and third-ranked curved panel suppliers AUO and CSOT are gearing up to dominate the market left by Samsung, while emerging panel supplier HKC has expressed its intention to do the same.

TrendForce believes that, as SDC drastically reduces its supply of curved display panels in 2021, whether other suppliers can step up to meet the market demand remains to be seen. As such, TrendForce expects curved monitor shipment to undergo its first decrease in 2021.

We combine technological innovation with cost advantages, and the Factory 32 Inch Curved LCD Panel Curved Monitor Gaming Desktop PC 2K Qhd 144Hz we provide has a competitive advantage in the global market, and we strive to create value for our customers. We thank customers for their continued support and trust over the years, and thank customers for introducing customers to the company. Your trust and support are the direction of our efforts! We will continue to try the best to supply you good quality products and solutions and the best service.

Important technical improvements of LCD, such as LED backlighting and wide viewing Angle, are directly related to LCD. And account for an LCD display 80% of the cost of the LCD panel, enough to show that the LCD panel is the core part of the entire display, the quality of the LCD panel, can be said to directly determine the quality of an LCD display.

The production of civil LCD displays is just an assembly process. The LCD panel, the main control circuit, shell, and other parts of the main assembly, basically will not have too complex technical problems.

Does this mean that LCDS are low-tech products? In fact, it is not. The production and manufacturing process of the LCD panels is very complicated, requiring at least 300 process processes. The whole process needs to be carried out in a dust-free environment and with precise technology.

The general structure of the LCD panel is not very complex, now the structure of the LCD panel is divided into two parts: the LCD panel and the backlight system.

Due to the LCD does not shine, so you need to use another light source to illuminate, the function of the backlight system is to this, but currently used CCFL lamp or LED backlight, don’t have the characteristics of the surface light source, so you need to guide plate, spreadsheet components, such as linear or point sources of light evenly across the surface, in order to make the entire LCD panel on the differences of luminous intensity is the same, but it is very difficult, to achieve the ideal state can be to try to reduce brightness non-uniformity, the backlight system has a lot to the test of design and workmanship.

In addition, there is a driving IC and printed circuit board beside the LCD panel, which is mainly used to control the rotation of LCD molecules in the LCD panel and the transmission of display signals. The LCD plate is thin and translucent without electricity. It is roughly shaped like a sandwich, with an LCD sandwiched between a layer of TFT glass and a layer of colored filters.

LCD with light refraction properties of solid crystals, with fluid flow characteristics at the same time, under the drive of the electrode, can be arranged in a way that, in accordance with the master want to control the strength of the light through, and then on the color filter, through the red, green, blue three colors of each pixel toning, eventually get the full-screen image.

According to the functional division, the LCD panel can be divided into the LCD panel and the backlight system. However, to produce an LCD panel, it needs to go through three complicated processes, namely, the manufacturing process of the front segment Array,the manufacturing process of the middle segment Cell, and the assembly of the rear segment module. Today we will be here, for you in detail to introduce the production of the LCD panel manufacturing process.

The manufacturing process of the LCD panel Array is mainly composed of four parts: film, yellow light, etch and peel film. If we just look at it in this way, many netizens do not understand the specific meaning of these four steps and why they do so.

First of all, the motion and arrangement of LCD molecules need electrons to drive them. Therefore, on the TFT glass, the carrier of LCD, there must be conductive parts to control the motion of LCD. In this case, we use ITO (Indium Tin Oxide) to do this.ITO is transparent and also acts as a thin-film conductive crystal so that it doesn’t block the backlight.

The different arrangement of LCD molecules and the rapid motion change can ensure that each pixel displays the corresponding color accurately and the image changes accurately and quickly, which requires the precision of LCD molecule control.ITO film needs special treatment, just like printing the circuit on the PCB board, drawing the conductive circuit on the whole LCD board.

This completes the previous Array process. It is not difficult to see from the whole process that ITO film is deposited, photoresist coated, exposed, developed, and etched on TFT glass, and finally, ITO electrode pattern designed in the early stage is formed on TFT glass to control the movement of LCD molecules on the glass. The general steps of the whole production process are not complicated, but the technical details and precautions are very complicated, so we will not introduce them here. Interested friends can consult relevant materials by themselves.

The glass that the LCD board uses makes a craft also very exquisite. (The manufacturing process flow of the LCD display screen)At present, the world’s largest LCD panel glass, mainly by the United States Corning, Japan Asahi glass manufacturers, located in the upstream of the production of LCD panel, these manufacturers have mastered the glass production technology patents. A few months ago, the earthquake caused a corning glass furnace shutdown incident, which has caused a certain impact on the LCD panel industry, you can see its position in the industry.

As mentioned earlier, the LCD panel is structured like a sandwich, with an LCD sandwiched between the lower TFT glass and the upper color filter. The terminal Cell process in LCD panel manufacturing involves the TFT glass being glued to the top and bottom of a colored filter, but this is not a simple bonding process that requires a lot of technical detail.

As you can see from the figure above, the glass is divided into 6 pieces of the same size. In other words, the LCD made from this glass is finally cut into 6 pieces, and the size of each piece is the final size. When the glass is cast, the specifications and sizes of each glass have been designed in advance.

Directional friction:Flannelette material is used to rub the surface of the layer in a specific direction so that the LCD molecules can be arranged along the friction direction of the aligned layer in the future to ensure the consistency of the arrangement of LCD molecules. After the alignment friction, there will be some contaminants such as flannelette thread, which need to be washed away through a special cleaning process.

After the TFT glass substrate is cleaned, a sealant coating is applied to allow the TFT glass substrate to be bonded to the color filter and to prevent LCD outflow.

Finally, the conductive adhesive is applied to the frame in the bonding direction of the glass of the color filter to ensure that external electrons can flow into the LCD layer. Then, according to the bonding mark on the TFT glass substrate and the color filter, two pieces of glass are bonded together, and the bonding material is solidified at high temperatures to make the upper and lower glasses fit statically.

Color filters are very important components of LCD panels. Manufacturers of color filters, like glass substrate manufacturers, are upstream of LCD panel manufacturers. Their oversupply or undersupply can directly affect the production schedule of LCD panels and indirectly affect the end market.

As can be seen from the above figure, each LCD panel is left with two edges after cutting. What is it used for? You can find the answer in the later module process

Finally, a polarizer is placed on both sides of each LCD substrate, with the horizontal polarizer facing outwards and the vertical polarizer facing inwards.

When making LCD panel, must up and down each use one, and presents the alternating direction, when has the electric field and does not have the electric field, causes the light to produce the phase difference and to present the light and dark state, uses in the display subtitle or the pattern.

The rear Module manufacturing process is mainly the integration of the drive IC pressing of the LCD substrate and the printed circuit board. This part can transmit the display signal received from the main control circuit to the drive IC to drive the LCD molecules to rotate and display the image. In addition, the backlight part will be integrated with the LCD substrate at this stage, and the complete LCD panel is completed.

Firstly, the heteroconductive adhesive is pressed on the two edges, which allows external electrons to enter the LCD substrate layer and acts as a bridge for electronic transmission

Next is the drive IC press. The main function of the drive IC is to output the required voltage to each pixel and control the degree of torsion of the LCD molecules. The drive IC is divided into two types. The source drive IC located in the X-axis is responsible for the input of data. It is characterized by high frequency and has an image function. The gate drive IC located in the Y-axis is responsible for the degree and speed of torsion of LCD molecules, which directly affects the response time of the LCD display. However, there are already many LCD panels that only have driving IC in the X-axis direction, perhaps because the Y-axis drive IC function has been integrated and simplified.

The press of the flexible circuit board can transmit data signals and act as the bridge between the external printed circuit and LCD. It can be bent and thus becomes a flexible or flexible circuit board

The manufacturing process of the LCD substrate still has a lot of details and matters needing attention, for example, rinse with clean, dry, dry, dry, ultrasonic cleaning, exposure, development and so on and so on, all have very strict technical details and requirements, so as to produce qualified eyes panel, interested friends can consult relevant technical information by a search engine.

LCD (LC) is a kind of LCD, which has the properties of light transmission and refraction of solid Crystal, as well as the flow property of Liquid. It is because of this property that it will be applied to the display field.

However, LCD does not emit light autonomously, so the display equipment using LCD as the display medium needs to be equipped with another backlight system.

First, a backplate is needed as the carrier of the light source. The common light source for LCD display equipment is CCFL cold cathode backlight, but it has started to switch to an LED backlight, but either one needs a backplate as the carrier.

CCFL backlight has been with LCD for a long time. Compared with LED backlight, CCFL backlight has many defects. However, it has gradually evolved to save 50% of the lamp and enhance the transmittance of the LCD panel, so as to achieve the purpose of energy-saving.

With the rapid development of LED in the field of lighting, the cost has been greatly reduced.LCD panels have also started to use LED as the backlight on a large scale. Currently, in order to control costs, an LED backlight is placed on the side rather than on the backplate, which can reduce the number of LED grains.

At the top of the diffusion plate, there will be 3~4 diffuser pieces, constantly uniform light to the whole surface, improve the uniformity of light, which is directly related to the LCD panel display effect. Professional LCD in order to better control the brightness uniformity of the screen, panel procurement, the later backlight control circuit, will make great efforts to ensure the quality of the panel.

Since the LCD substrate and the backlight system are not fixed by bonding, a metal or rubber frame is needed to be added to the outer layer to fix the LCD substrate and the backlight system.

After the period of the Module, the process is completed in LCM (LCDModule) factory, the core of this part of the basic does not involve the use of LCD manufacturing technology, mainly is some assembly work, so some machine panel factories such as chi mei, Korea department such as Samsung panel factory, all set with LCM factories in mainland China, Duan Mo group after the LCD panel assembly, so that we can convenient mainland area each big monitor procurement contract with LCD TV manufacturers, can reduce the human in the whole manufacturing and transportation costs.

However, neither Taiwan nor Korea has any intention to set up factories in mainland China for the LCD panel front and middle manufacturing process involving core technologies. Therefore, there is still a long way to go for China to have its own LCD panel industry.

Like many innovations, curved glass for smartphones has had its share of false starts, retreats, and reintroductions. From the introduction of flat glass with contoured edges to curving of the glass out of the plane of the glass surface, the industry has moved from placing curved glass over flat screens to using curved glass over curved LCD and OLED displays in a short period of time. New software will continue to take advantage of and fuel development of the new displays with both three-dimensional images and increasing use of the edges of the screen to display information.

Initially, curved glass and the capabilities it allows will be a critical differentiator for leading manufacturers in the field. We can then expect curved glass to move into the mainstream and become an essential feature for all serious competitors. As this happens, it’s important to note that the molds used to shape curved glass are just as important as the specialized glass itself in ensuring the powerful potential of this technology is fully realized.

Graphite is the material of choice for forming curved glass molds, and the quality of that material can have a huge impact on the quality of glass it forms, the longevity of the molds, and the economics and yield of the process itself. While the process of creating curved glass is theoretically simple, the key challenge for manufacturers will be to keep up with the demand.

The smartphone industry is rapidly accepting curved screen glass as a standard component. Curved glass screens are formed in graphite molds, and the graphite material choice can impact several factors in the cost of production and negatively affect time to market. The ideal graphite material will have a finer microstructure and closely match the CTE of the glass. It will balance material hardness to allow effective machining while extending mold life. The result will be higher yield, better glass quality with less secondary processing, and less need to replace costly molds.

We combine technological innovation with cost advantages, and the Factory 32 Inch Curved LCD Panel Curved Monitor Gaming Desktop PC 2K Qhd 144Hz we provide has a competitive advantage in the global market, and we strive to create value for our customers. We thank customers for their continued support and trust over the years, and thank customers for introducing customers to the company. Your trust and support are the direction of our efforts! We will continue to try the best to supply you good quality products and solutions and the best service.

먼저, 곡면형 디스플레이 패널을 제조하기 위한 벤딩(bending) 작업의 본격적인 수행에 앞서 몇 가지 준비 사항이 있다. 이를 강화유리 기판으로 만든 오픈 셀을 예로 하여 설명한다.First, there are a few preparations prior to the full-scale performance of the bending operation for manufacturing the curved display panel. An open cell made of a tempered glass substrate will be described as an example.

우선, 테이핑 처리된 평면형 LCD 패널 오픈 셀(10)을 준비한다. 벤딩 작업의 대상물은 LCD 패널 제조사에서 일반적으로 제조하여 판매하는 "오픈 셀"이 될 수 있다. 도 1에 도시된 것처럼, 오픈 셀(10)에 있어서 액정층(13)을 사이에 두고 서로 대면하면서 가장자리 부분이 밀봉재로 접합되어 그 액정층(13)을 밀폐된 공간에 가두는 제1 및 제2 기판(12-1, 12-2)은 강화유리로 만들어져 있다. 그 제1 강화유리 기판(12-1)에는 복수의 표시 신호선(즉, 게이트선과 데이터선, 다수의 박막 트랜지스터(TFT)와 화소 전극 등)이 형성되어 있고, 제2 강화유리 기판(12-2)에는 색 필터(color filter)와 공통 전극이 형성된다. 제1 및 제2 강화유리 기판(12-1, 12-2)에 형성된 전극들과 구동회로가 장착된 PCB 간의 전기적인 연결을 제공하는 복수의 탭(22)이 기판의 한쪽 모서리에 형성된다. 벤딩 작업의 대상물은 복수의 탭(22)이 결합된 오픈 셀이거나 또는 그 복수의 탭(22)에 PCB 회로까지 연결된 오픈 셀일 수 있다.First, a flat-type LCD panel open cell 10 having a taping process is prepared. The object of the bending operation may be an open cell which is generally manufactured and sold by an LCD panel manufacturer. As shown in Fig. 1, the open cells 10 are provided with a first and a second liquid crystal layer 13 facing each other with the liquid crystal layer 13 interposed therebetween, 2 substrates 12-1 and 12-2 are made of tempered glass. A plurality of display signal lines (that is, gate lines and data lines, a plurality of thin film transistors (TFTs) and pixel electrodes, and the like) are formed on the first tempered glass substrate 12-1. A color filter and a common electrode are formed. A plurality of tabs 22 are formed on one edge of the substrate to provide an electrical connection between the electrodes formed on the first and second tempered glass substrates 12-1 and 12-2 and the PCB on which the drive circuit is mounted. The object of the bending operation may be an open cell to which a plurality of tabs 22 are coupled or an open cell connected to the plurality of tabs 22 to the PCB circuit.

오픈 셀(10)의 준비와는 별도로, 도 2에 예시된 것과 같이, 오픈 셀(10)을 수납하는 패널 전방 프레임(30)도 준비한다. 패널 전방 프레임(30)은 오픈 셀(10)의 가장자리 둘레를 감싸면서 받쳐주되 후술할 벤딩 장치(70)로 소정의 곡률만큼 휘어진 오픈 셀(10)을 휘어진 상태를 유지하도록 붙잡아준다. 본 발명은 곡률의 값이 3,000R 이하의 특히 바람직하게는 1,500R 이하부터 700R까지도 아무런 문제없이 휘어진 오픈 셀을 제조할 수 있다.Apart from the preparation of the open cell 10, as shown in Fig. 2, a panel front frame 30 accommodating the open cell 10 is also prepared. The panel front frame 30 holds and holds the open cell 10 bent around a periphery of the open cell 10 by a predetermined curvature with a bending device 70 described later. The present invention can manufacture a curved open cell with a curvature value of 3,000R or less, particularly preferably 1,500R or less to 700R without any problem.

패널 전방 프레임(30)은 두 개의 가로 프레임(36)과 두 개의 세로 프레임(38)이 사각 고리를 형성하도록 연결된 구조로 되어 있다. 오픈 셀(10)의 휘어진 상태를 유지해줄 수 있기 위해 강도가 우수한 금속재 또는 플라스틱재로 만드는 것이 바람직하다. 한 쌍의 가로 프레임(36)과 한 쌍의 세로 프레임(38) 중 어느 하나는 제2 곡률로 휘어진 형상이고, 나머지 한 쪽은 직선형이다. 즉, 패널 전방 프레임(30)은 가로방향으로 휘어진 형상이거나 또는 세로방향으로 휘어진 형상일 수 있다. 도면에 예시된 패널 전방 프레임(30)은 가로방향으로 휘어진 형상이다.The panel front frame 30 has a structure in which two horizontal frames 36 and two vertical frames 38 are connected to form a square loop. It is preferable to make a metal material or a plastic material having excellent strength so as to maintain the bent state of the open cell 10. Either one of the pair of horizontal frames 36 and the pair of vertical frames 38 has a shape curved at a second curvature, and the other is linear. That is, the panel front frame 30 may be curved in the lateral direction or curved in the longitudinal direction. The panel front frame 30 illustrated in the figure is a shape bent in the transverse direction.

가로 프레임(36)과 세로 프레임(38)은 각각 한 몸체로 연결된 바닥부(32)와 측벽부(34)를 구비한다. 바닥부(32)와 측벽부(34)는 모두 대략 1~2센티미터의 폭을 갖는 띠 모양이다. 측벽부(34)는 수직 상방으로 일정한 높이를 갖고, 바닥부(32)는 측벽부(34)의 하단에서 90도(휘어지지 않은 부분) 또는 90도 이내의 각도(휘어진 부분. 제2 곡률을 형성하는 각도)로 절곡되어 상기 폭으로 연장된 부분이다.The horizontal frame 36 and the vertical frame 38 each have a bottom portion 32 and a side wall portion 34 connected to each other in one body. The bottom portion 32 and the side wall portion 34 are all in the form of stripes having a width of approximately 1 to 2 centimeters. The side wall portion 34 has a constant height vertically upward and the bottom portion 32 has an angle of 90 degrees (a non-bent portion) or an angle of 90 degrees (a curved portion, (I.e., at an angle of forming).

패널 전방 프레임(30)의 곡률(제2곡률)은 후술할 벤딩장치(70)의 곡면형 받침부(50)(와 오픈셀 누름부(60)의 곡률(제1곡률)보다 약간 큰 값을 갖는 것이 바람직하다. 제2곡률은 제1곡률에 비해 5~30R 정도 더 큰 값을 갖는 것이 바람직하다. 예컨대, 패널 전방 프레임(30)의 제2 곡률이 예를 들어 1,500R이라면, 곡면형 받침부(50) 상면(52)의 제1곡률은 1,470~1,495R 정도인 것이 바람직하다. 이처럼 패널 전방 프레임(30)의 휘어짐 정도가 벤딩장치(70)에 의한 오픈 셀(10)의 휘어짐 정도보다 5~30R 정도 덜 휘어진 것으로 만들면, 오픈 셀(10)을 패널 전방 프레임(30)에 수납할 때 작업성을 좋게 하기 위함이다. 만약, 상기 두 곡률의 관계가 "제2곡률 < 제1곡률+5R"이면 오픈 셀(10)을 패널 전방 프레임(30) 안에 수납할 때 오픈 셀(10)이 측벽부(34)에 걸려 쉽게 수납하기가 어려워지기 때문이다. 상기 두 곡률의 차이가 30R보다 더 크면, 오픈 셀(10)이 패널 전방 프레임(30) 안에 수납되고 난 후 제1곡률에서 제2곡률로 펴지는 정도가 지나치게 많아서 바람직하지 않다.The curvature (second curvature) of the panel front frame 30 is set to be slightly larger than the curvature (first curvature) of the curved surface receiving portion 50 (and the open cell pressing portion 60) of the bending device 70 It is preferable that the second curvature has a value larger by about 5 to 30 R than the first curvature For example, if the second curvature of the panel front frame 30 is, for example, 1,500 R, It is preferable that the first curvature of the upper surface 52 of the panel 50 is about 1,470 to 1,495 R. When the degree of warping of the panel front frame 30 is less than the degree of warping of the open cell 10 by the bending device 70 If the curvature is less than 5 to 30R, the workability is improved when the open cell 10 is housed in the panel front frame 30. If the relationship between the two curvatures is "second curvature

오픈 셀(10)은 벤딩 공정에 의해 휘어진 상태 그대로 그것의 앞면 가장자리 둘레 부분이 패널 전방 프레임(30)의 바닥부(32)에 걸쳐지는 형태로 패널 전방 프레임(30)에 수납, 고정된다. 오픈 셀(10)이 그렇게 휘어져 수납된 상태로 유지되도록 하기 위한 고정수단도 함께 준비한다. 고정수단은 세로 프레임(38)에 장착되는 세로 고정부재(42)와 가로 프레임(36)에 장착되는 가로 고정부재(44)를 포함할 수 있다. 이들 세로 및 가로 고정부재(42, 44) 역시 서로 직각에 가깝게 절곡된 바닥부(32)와 측벽부(34)로 구성될 수 있다. 세로 고정부재(42)는 직선형인 반면, 가로 고정부재(44)는 가로 프레임(36)과 같은 곡률을 가진 곡선형으로 마련하는 것이 바람직하다. 도면에는 프레임(30)의 각 변에 세로 고정부재(42)와 가로 고정부재(44)가 각각 한 개씩 결합되는 것으로 도시되어 있지만, 이는 예시적인 것에 불과하며, 세로 고정부재(42)와 가로 고정부재(44) 각각은 길이를 짧게 하여 복수 개로 구성할 수도 있다.The open cell 10 is received and fixed in the panel front frame 30 in such a form that the front edge circumferential portion of the open cell 10 is bent over the bottom portion 32 of the panel front frame 30 while being bent by the bending process. A fixing means for holding the open cell 10 so bent and held is also prepared. The fastening means may include a longitudinal fixing member 42 mounted to the longitudinal frame 38 and a transverse fixing member 44 mounted to the transverse frame 36. These vertical and horizontal fixing members 42 and 44 may also be composed of a bottom portion 32 and a side wall portion 34 which are bent at a right angle close to each other. It is preferable that the vertical fixing member 42 is linear while the horizontal fixing member 44 is provided in a curved shape having the same curvature as the horizontal frame 36. [ Although the figure shows the longitudinal fixing member 42 and the lateral fixing member 44 as being joined to each side of the frame 30 one by one, this is merely an example, and the vertical fixing member 42 and the horizontal fixing member 44 Each of the members 44 may have a plurality of shortened lengths.

다음으로, 도 3은 본 발명의 일 실시예에 따른 벤딩 장치(70)의 구조를 개념적으로 개략 도시한다. 이 벤딩 장치(70)는 먼저 오픈 셀(10)을 원하는 곡률로 휘게 한 상태에서 패널 전방 프레임(30)에 수납, 결합하여 오픈셀-전방프레임 조립체(80)를 완성하게 해주는 장치이다. 이 벤딩 장치(70)는 곡면형 받침부(50)와 오픈셀 누름부(60)를 갖는다.Next, Fig. 3 conceptually schematically shows the structure of a bending apparatus 70 according to an embodiment of the present invention. The bending device 70 is a device that first integrates and joins the open cell 10 to the panel front frame 30 while bending the open cell 10 to a desired curvature to complete the open cell-front frame assembly 80. The bending device 70 has a curved face receiving portion 50 and an open cell pressing portion 60.

곡면형 받침부(50)는 오픈 셀(10)을 위에 올려놓고 오픈셀 누름부(60)로 눌러서 휘게 할 때 그 오픈 셀(10)을 밑에서 받쳐주면서 제1곡률만큼 휘게 하는 역할을 한다. 오픈 셀(10)과 직접 접촉하는 곡면형 받침부(50)의 상면(52)은 제1곡률만큼 휘어진 곡면으로 되어 있다. 또한, 곡면형 받침부(50)의 상면(52)의 크기(면적)는 오픈 셀(10)의 크기(면적) 보다 약간 작은 것이 바람직하다. 오픈 셀(10)을 곡면형 받침부(50)의 상면(52)에 정렬하여(서로의 중심을 일치시켜) 올려놓고 그 오픈 셀(10)을 곡면형 받침부(50)의 상면(52)과 같은 곡률로 휘게 하였을 때, 오픈 셀(10)의 가장자리 둘레 부분이 그 곡면형 받침부(50)의 상면(52) 바깥으로 약간(예컨대, 대략 5~30mm 정도) 돌출되는 것이 바람직하다. 왜냐하면 벤딩된 오픈 셀(10)을 패널 전방 프레임(30)에 간편하게 수납시켜 결합할 수 있도록 하기 위함이다. 또한, 패널 전방 프레임(30)은 곡면형 받침부(50)의 측면 둘레에 씌워서 수직방향으로 이동시킬 수 있어야 한다. 이를 위해, 곡면형 받침부(50)의 상면(52)은 패널 전방 프레임(30)의 바닥부(32)에 의해 정의되는 사각형 구멍 사이즈보다 약간 작을 필요가 있다(패널 전방 프레임(30)의 바닥부(32)가 곡면형 받침부(50)의 상면(52)에 걸리지 않을 정도). When the open cell 10 is pressed and bent by the open cell pushing part 60, the curved face support part 50 bends the open cell 10 by the first curvature while supporting the open cell 10 from below. The upper surface 52 of the curved surface receiving portion 50 which is in direct contact with the open cell 10 has a curved surface curved by the first curvature. The size (area) of the upper surface 52 of the curved surface receiving portion 50 is preferably slightly smaller than the size (area) of the open cell 10. The open cells 10 are aligned on the upper face 52 of the curved face receiving portion 50 so that the open cells 10 are aligned with the upper face 52 of the curved face receiving portion 50, It is preferable that the periphery of the open cell 10 protrudes slightly (for example, about 5 to 30 mm or so) outside the upper surface 52 of the curved surface receiving portion 50 when curved. This is because the bending open cell 10 can be easily accommodated in the panel front frame 30 to be coupled. Further, the panel front frame 30 should be able to move in the vertical direction by covering the side surface of the curved receiving portion 50. To this end, the upper surface 52 of the curved receiving portion 50 needs to be slightly smaller than the square hole size defined by the bottom portion 32 of the panel front frame 30 (the bottom of the panel front frame 30 So that the portion 32 does not catch on the upper surface 52 of the curved receiving portion 50).

(i) 오픈 셀(10)을 곡면형 받침부(50) 쪽으로 눌러 곡률이 3,000R 이하로 많이 휘게 만들 때, 적절한 조치를 취하지 않으면 오픈 셀(10)의 강화유리 기판(12-1, 12-2)은 파손으로 연결되는 될 가능성이 매우 높다;(i) When the open cell 10 is pressed toward the curved support portion 50 side and the curvature is increased to 3,000R or less, if the appropriate measures are not taken, the tempered glass substrates 12-1, 12- 2) is very likely to be connected by breakage;

(iii) 오픈 셀(10)을 벤딩하기 위해 오픈 셀(10)의 좌우측 부분을 곡면형 받침부(50) 쪽으로 눌러주는 과정에서 오픈 셀(10)의 가운데 부분(곡면형 받침부(50)의 상면(52)과 접촉하고 있는 부분을 중심으로 좌우의 소정 구간)이 위쪽으로 솟아오르려는 힘을 받게 되는데, 이를 그대로 방치하면 오픈 셀(10)의 가운데 부분은 상대적으로 더 많이 휘게 되어(즉, 제1곡률보다 더 많이 휘게 되어) 구조적으로 취약해져 파손으로 연결되는 경우가 자주 발생한다; 그리고(iii) In the process of pressing the left and right portions of the open cell 10 toward the curved support portion 50 in order to bend the open cell 10, the center portion of the open cell 10 A predetermined portion of the left and right sides of the portion in contact with the upper surface 52 is subjected to a force to rise upwardly. If this is left as it is, the center portion of the open cell 10 is relatively more bent It is bent more than the first curvature) and is often structurally weakened and connected to breakage; And

오픈셀 누름부(60)는 곡면형 받침부(50)의 상면(52) 위에 놓인 오픈 셀(10)을 곡면형 받침부(50) 쪽으로 눌러서 제1곡률만큼 휘게 해주는 역할을 한다. 오픈셀 누름부(60)는 위와 같은 사항들을 반영한 구조로 구성한다. 즉, 오픈셀 누름부(60)는 오픈 셀(10)의 가운데 부분을 먼저 눌러주기 위한 중앙 누름부(62)와 이의 좌우측에 위치하여 오픈 셀(10)의 좌우측 부분을 눌러주기 위한 좌우측 누름부(64-1, 64-2)를 구비한다. 중앙 누름부(62)와 좌우측 누름부(64-1, 64-2)는 모두 곡면형 받침부(50)에 대하여 수직방향(즉, 오픈 셀(10) 상면에 대한 법선방향)으로 접근하거나 후퇴할 수 있도록 구성하되, 그들의 움직임은 서로 독립적으로 수행될 수 있도록 구성하는 것이 바람직하다. 중앙 누름부(62)는 좌우측 누름부(64-1, 64-2)가 오픈 셀(10)의 좌우측 부분을 누르기 전에 가운데 부분을 먼저 눌러줄 수 있어야 하기 때문이다.The open cell pressing portion 60 functions to press the open cell 10 placed on the upper surface 52 of the curved surface receiving portion 50 toward the curved surface receiving portion 50 to bend the curved portion to a first curvature. The open cell pushing portion 60 is constructed in a structure reflecting the above matters. That is, the open cell pushing portion 60 includes a central pushing portion 62 for pressing the center portion of the open cell 10 first, and left and right pushing portions 62 for pushing left and right portions of the open cell 10, (64-1, 64-2). The center pushing portion 62 and the left and right pushing portions 64-1 and 64-2 are both approaching or retreating in a direction perpendicular to the curved surface receiving portion 50 (i.e., normal direction to the upper surface of the open cell 10) It is preferable to configure them so that their motions can be performed independently of each other. This is because the left and right pushing portions 64-1 and 64-2 must be able to press the middle portion first before the left and right portions of the open cell 10 are pressed.

오픈 셀(10)의 가운데 부분의 표면과 직접 접촉하는 중앙 누름부(62)의 저부는 평면형으로 구성하거나 또는 곡면형으로 구성할 수 있다. 중앙 누름부(62)의 저부를 곡면형으로 구성하는 경우에는 그 곡률은 제1곡률보다 작지 않은 값인 것이 바람직하다. 상기 접촉누름부는 약간의 탄성을 가져 벤딩 공정 시 오픈 셀(10) 표면에 손상을 주지 않는 재질(예컨대 고무 패드 또는 우레탄 패드 등)로 만드는 것이 바람직할 수 있다.The bottom portion of the center pressing portion 62, which is in direct contact with the surface of the center portion of the open cell 10, can be configured as a flat or curved surface. When the bottom of the central pressing portion 62 is formed in a curved shape, the curvature thereof is preferably a value not smaller than the first curvature. The contact pressing part may be made of a material (e.g., a rubber pad, a urethane pad, or the like) that does not damage the surface of the open cell 10 during the bending process due to its slight elasticity.

오픈셀 누름부(60)는 중앙 누름부(62)와 좌우측 누름부(64-2, 64-2)의 독립적인 수직이동을 구동하고 곡면형 받침부(50)의 상면(52)과 소정의 간격(d)이 되도록 접근 제어를 하기 위한 수단(비도시)도 구비한다. 즉, 중앙 누름부(62)와 좌우측 누름부(64-1, 64-2)는 공히 곡면형 받침부(50)의 상면(52)에 대하여 수직방향으로 접근하여 오픈 셀(10)이 제1곡률만큼 휘어지게 하거나 평행하게 후퇴하여 패널 전방 프레임(30)과 오픈 셀(10) 결합체를 곡면형 받침부(50)와 오픈셀 누름부(60) 사이로 빼낼 수 있도록 수직방향으로 움직일 수 있어야 한다. 따라서 중앙 누름부(62)와 좌우측 누름부(64-1, 64-2)의 이와 같은 움직임을 가능하게 하는 별도의 구동수단(비도시)과 제어수단(비도시)이 필요함은 물론이다.The open cell pushing portion 60 drives independent vertical movement of the center pushing portion 62 and the left and right pushing portions 64-2 and 64-2 to move the upper face 52 of the curved face receiving portion 50 to a predetermined position (Not shown) for performing the access control so as to be the interval d. That is, the center pushing portion 62 and the left and right pushing portions 64-1 and 64-2 approach the upper surface 52 of the curved receiving portion 50 in the vertical direction, The panel front frame 30 and the open cell 10 combination should be able to move vertically so as to be curved or parallel to each other so as to be pulled out between the curved support 50 and the open cell pusher 60. Therefore, it is needless to say that a separate driving means (not shown) and a control means (not shown) are required to enable the center pushing portion 62 and the left and right pushing portions 64-1 and 64-2 to move in this manner.

오픈 셀(10)과 직접 접촉하여 눌러주는 좌우측 누름부(64-1, 64-2)의 저부는 기본적으로는 곡면형 받침부(50)의 상면(52) 곡률과 실질적으로 동일한 곡률을 갖고 동시에 그 상면(52)과 동일한 사이즈를 갖도록 구성하는 것이 바람직하다. 좌우측 누름부(64-1, 64-2)의 저부는 오픈 셀(10)을 아래쪽으로 눌러줄 때 오픈 셀(10)과 전면적으로 접촉하는 형태 또는 부분적으로 접촉하는 형태로 구성할 수 있다. 즉, 좌우측 누름부(64-1, 64-2)의 저면은 다음과 같은 형태로 오픈 셀(10)의 상면과 접촉하여 눌러줄 수 있는 형상을 가질 수 있다: (i) 오픈 셀(10)의 상면 전체 영역과 접촉하는 곡면 형태, (ii) 오픈 셀(10)의 가장자리 둘레에만 접촉하고 그 둘레 안쪽과는 접촉하지 않는 형태, (iii) 오픈 셀(10)의 상면에 복수 줄의 띠 영역(세로 방향으로 소정 간격 이격되어 있고 가로 방향으로 나란히 배열된 띠 영역)과만 접촉하는 형태, 또는 (iv) 이들 접촉 형태를 조합한 형태 중 어느 한 가지 형태.The bottom portions of the left and right pushing portions 64-1 and 64-2 which are in direct contact with the open cell 10 and basically have a curvature substantially equal to the curvature of the upper surface 52 of the curved receiving portion 50 It is preferable to have the same size as the upper surface 52 thereof. The bottom portions of the left and right pushing portions 64-1 and 64-2 can be formed in such a manner that the bottom portions of the left and right pushing portions 64-1 and 64-2 come into contact with the open cell 10 in whole or in part when the open cell 10 is pushed downward. That is, the bottom surfaces of the left and right pushing portions 64-1 and 64-2 can have a shape that can be pressed into contact with the upper surface of the open cell 10 in the following manner: (i) (Ii) a shape that contacts only the periphery of the open cell 10 and does not come in contact with the inside of the open cell 10, (iii) a shape in which a plurality of stripe regions (A strip region spaced at a predetermined interval in the longitudinal direction and arranged side by side in the horizontal direction), or (iv) a form in which these contact forms are combined.

오픈 셀(10)의 표면을 눌러주는 오픈셀 누름부(60)의 저부를 위와 같이 곡면형 받침부(50)와 같은 곡률을 가지면서 형상의 변화가 없는 고체 재질로 구성할 수도 있지만, 도 6에 도시된 오픈셀 누름부(60-1)처럼 유동성 있는 액체주머니로 구성할 수도 있다. 도시된 오픈셀 누름부(60-1)는 중앙누름부(62)의 저부에 고무나 합성수지재로 튼튼하게 만든 주머니에 물이나 기타 다른 유동성 있는 액체를 넣어 만든 액체주머니(63)를 배치한다. 중앙 누름부(62)가 하강하여 그 액체주머니(63)를 오픈 셀(10)의 가운데 부분에 올려놓아 그 액체주머니(63)의 무게로 오픈 셀(10)의 솟아오름을 억누를 수 있도록 구성된다. 이 경우, 그 액체주머니(63)의 무게는 오픈 셀(10)의 벤딩 과정에서 발생하는 가운데 부분의 솟아오름을 막을 수 있는 최소 무게보다는 무거운 것이 바람직하다. 다만, 지나치게 무거우면 액정층(11)의 간격을 유지해주는 스페이서의 파손 등 액정층(11)의 손상 문제를 일으킬 수 있는 최대 무게보다는 가벼워야 할 것이다. 예컨대 20~30인치급 오픈 셀(10)의 경우는 대략 4~6kg 정도의 무게를 갖는 액체주머니(63)로 눌러주면 적당하다. 오픈 셀(10)의 가운데 부분 위에 올려진 그 액체주머니(63)는 오픈 셀(10)의 그 가운데 부분을 아래로 약간 휘어지게 만들면서 눌러주게 된다.The bottom portion of the open cell pressing portion 60 that presses the surface of the open cell 10 may be made of a solid material having the same curvature as the curved surface receiving portion 50 and having no change in shape, It is also possible to constitute a liquid pouch which is fluid like the open cell pushing part 60-1 shown in Fig. In the illustrated open cell pushing part 60-1, a liquid bag 63 made by putting water or other fluid liquid in a bag made of rubber or a synthetic resin material at the bottom of the central pushing part 62 is disposed. The center pushing portion 62 is lowered and the liquid bag 63 is placed on the center portion of the open cell 10 so that the bulge of the open cell 10 can be suppressed by the weight of the liquid bag 63 . In this case, it is preferable that the weight of the liquid bag 63 is larger than the minimum weight that can prevent the bulging of the center portion generated in the bending process of the open cell 10. However, if it is excessively heavy, it should be lighter than the maximum weight which can cause damage problem of the liquid crystal layer 11, such as breakage of the spacer which keeps the interval of the liquid crystal layer 11. For example, in the case of the open cell 10 of the 20 to 30 inch class, it is suitable to press with the liquid bag 63 having a weight of about 4 to 6 kg. The liquid bag 63, which is placed on the center portion of the open cell 10, pushes the center portion of the open cell 10 while slightly bending it downward.

벤딩 장치(70)는 공정의 자동화를 높이기 위해 가동팔(66)을 더 구비할 수도 있다. 이 가동팔(66)은 수평방향과 수직방향으로 움직일 수 있으며, 어떤 대상물을 붙잡거나 받치거나 그 외 다른 어떤 방법으로 그 대상물을 어느 한 위치에서 다른 원하는 위치에 이동시키기, 이동한 지점에 그 대상물을 내려놓기 등의 작업을 수행할 수 있는 일종의 로봇 팔이다. 도면에 예시된 가동팔(66)은 곡면형 받침부(50)의 양 측면으로 나란히 연장된 두 팔부재(68)와 이의 말단에 결합된 손부재(67)를 구비한다. 손부재(67)는 수직방향으로 선회할 수 있도록 결합되거나 또는 수평방향으로 전진과 후진을 할 수 있도록 결합되어, 대상물을 받쳐들거나 붙잡고, 필요시 원하는 위치에 내려놓을 수 있다. 이 가동팔(66)은 두 팔부재(68)가 수평 및 수직 방향으로 이동할 수 있고 손부재(67)가 선회 가능하므로 다음과 같은 작업이 가능하다: (i) 패널 전방 프레임(30)을 소정 부위를 붙잡거나 받쳐서 곡면형 받침부(50)의 상면(52) 아래 측면을 감싸도록 위치시키는 작업; (ii) 오픈 셀(10)을 곡면형 받침부(50)의 상면(52)에 정렬되게 올려놓는 작업; (iii) 오픈 셀(10)이 오픈셀 누름부(60)와 곡면형 받침부(50)의 사이에서 상기 제1곡률로 휘어진 상태에서 패널 전방 프레임(30)을 위로 들어 올려 오픈 셀(10)이 패널 전방 프레임(30) 안에 수납되게 하는 작업; 그리고 (iv) 고정부재(40)들을 이용하여 결합된 오픈셀-전방프레임 조립체(80)를 곡면형 받침부(50)와 오픈셀 누름부(60) 사이의 벌어진 공간을 통해 빼내는 작업 등. The bending apparatus 70 may further include a movable arm 66 for enhancing automation of the process. The movable arm 66 can move in the horizontal direction and the vertical direction and can move the object from any position to another desired position by grabbing or supporting an object or by any other method, And a robot arm that can perform operations such as dropping a robot arm. The movable arm 66 illustrated in the drawing has two arm members 68 extending in parallel to both sides of the curved support portion 50 and a hand member 67 coupled to the distal end thereof. The hand member 67 can be pivotally coupled in a vertical direction or coupled to be capable of advancing and retracting in a horizontal direction to support or hold an object and place it in a desired position when necessary. The movable arm 66 can move in the horizontal and vertical directions and the hand member 67 can pivot so that the following operations are possible: (i) when the panel front frame 30 is rotated in a predetermined direction An operation of holding or supporting the portion of the curved support member 50 so as to surround the lower surface of the upper surface 52 of the curved support member 50; (ii) an operation of placing the open cell 10 in alignment with the upper surface 52 of the curved receiving portion 50; (iii) The open cell 10 is lifted up above the open cell 10 in a state where the open cell 10 is bent at the first curvature between the open cell pressing portion 60 and the curved surface receiving portion 50, To be housed in the panel front frame (30); And (iv) an operation of pulling out the open cell-front frame assembly 80 combined using the fixing members 40 through the space between the curved support portion 50 and the open cell pressing portion 60.

다음으로, 도 3의 벤딩 장치(70)를 이용하여 곡면형 LCD 패널을 만드는 방법을 설명한다. 도 4a 내지 도 4f는 벤딩 장치(70)를 이용하여 곡면형 LCD 패널을 만드는 공정을 도식적으로 나타낸 것이며, 도 5는 이러한 가공 공정의 순서도이다.Next, a method of making a curved LCD panel using the bending apparatus 70 of FIG. 3 will be described. FIGS. 4A to 4F schematically show a process of making a curved LCD panel using the bending device 70, and FIG. 5 is a flowchart of such a process.

먼저, 벤딩 작업에 필요한 재료들을 준비한다. 즉, 앞에서도 언급하였듯이 오픈 셀(10)의 표면에 테이프(20)를 부착한다(S10 단계). 제조사에서 판매하는 원래 상태의 오픈 셀 제품을 작업 대상 오픈 셀로 사용할 수 있다. 벤딩된 오픈 셀(10)을 장착하여 결합체를 구성할 패널 전방 프레임(30)도 준비해둔다.First, prepare materials necessary for bending work. That is, as described above, the tape 20 is attached to the surface of the open cell 10 (step S10). The original open cell product sold by the manufacturer can be used as an open cell for work. A panel front frame 30 to be assembled by mounting the bent open cell 10 is also prepared.

본격적인 벤딩 작업의 첫 단계로서, 패널 전방 프레임(30)이 곡면형 받침부(50)에 외삽되어 그의 측면을 감싸도록 위치시킨다. 이 때, 그 패널 전방 프레임(30)은 곡면형 받침부(50)의 상면(52)보다 낮은 위치에 그리고 그의 바닥부(32)가 위로 향하게 배치한다(S12 단계). 오픈 셀(10)을 위와 같이 위치시키는 작업은 작업자가 수동으로 할 수도 있지만, 가동팔(66)을 갖춘 벤딩 장치(70)라면 그 가동팔(66)이 수행한다.As a first step of the full bending operation, the panel front frame 30 is extrapolated to the curved support portion 50 to be positioned so as to surround the side surface thereof. At this time, the panel front frame 30 is positioned lower than the upper surface 52 of the curved support portion 50 and the bottom portion 32 thereof is directed upward (S12). The work for positioning the open cell 10 as above can be manually performed by the operator, but the movable arm 66 performs the bending operation when the bending apparatus 70 equipped with the movable arm 66 is operated.

그런 다음 테이핑 처리된 오픈 셀(10)을 곡면형 받침부(50)의 상면(52) 위에 서로의 가운데 부분이 정렬되게 하여 올려놓는다(S14 단계)(도 4a 참조). 이 때, 도시된 것처럼 오픈셀 누름부(60)는 이러한 작업을 할 수 있는 공간이 확보될 수 있는 정도로 곡면형 받침부(50)로부터 충분히 이격되어 있을 필요가 있다. 오픈 셀(10)을 위와 같이 위치시키는 작업은 작업자가 수동으로 할 수도 있지만, 가동팔(66)을 갖춘 벤딩 장치(70)라면 그 가동팔(66)이 수행한다.Then, the taped open cells 10 are placed on the upper surface 52 of the curved surface receiving portion 50 with their center portions aligned with each other (S14) (see FIG. 4A). At this time, as shown in the drawing, the open cell pressing portion 60 needs to be sufficiently spaced from the curved surface receiving portion 50 to such an extent that a space for such an operation can be secured. The work for positioning the open cell 10 as above can be manually performed by the operator, but the movable arm 66 performs the bending operation when the bending apparatus 70 equipped with the movable arm 66 is operated.

이와 같이 패널 전방 프레임(30)과 오픈 셀(10)을 벤딩 장치(70)에 제대로 위치시킨 다음에는, 중앙 누름부(62)를 곡면형 받침부(50) 쪽으로 하강시켜 오픈 셀(10)의 가운데 부분의 상면을 눌러준다(도 4b 참조)(S16 단계). 이때, 중앙 누름부(62)의 저면과 곡면형 받침부(50)의 최고위점(즉, 상면(52)의 가운데 부분) 간의 간격(d)은 오픈 셀(10)의 두께(t)와 같거나 미세하게 큰 정도(즉, t≤d≤t+δ)인 것이 바람직하다. 상기 간격(d)이 두께(t)보다 작으면 오픈 셀(10)이 과도하게 압박되어 손상을 입게 된다. 반대로 지나치게 크면(예컨대 δ가 1mm이상이면) 오픈 셀(10)의 가운데 부분이 제1곡률보다 휘어지는 정도가 커서 강화유리 기판(12-1, 12-2)의 파손 방지에 불리하다. 그리고 중앙 누름부(62)가 누르는 힘은 오픈 셀(10)이 휘어지는 과정에서 그 가운데 부분이 솟아오르려고 가하는 힘과 적어도 같거나 커서 솟아오름을 막을 수 있어야 할 것이다.After the panel front frame 30 and the open cell 10 are properly positioned in the bending device 70 as described above, the center pressing portion 62 is lowered toward the curved receiving portion 50, Thereby pressing the upper surface of the middle portion (refer to FIG. 4B) (S16). At this time, the distance d between the bottom surface of the center pressing portion 62 and the highest point of the curved surface receiving portion 50 (that is, the middle portion of the top surface 52) is equal to the thickness t of the open cell 10 Or a finely large degree (i.e., t? D? T +?). If the distance d is smaller than the thickness t, the open cell 10 is excessively pressed and damaged. Conversely, if the diameter is too large (for example,? Is 1 mm or more), the degree of bending of the center portion of the open cell 10 is larger than the first curvature, which is disadvantageous for preventing breakage of the tempered glass substrates 12-1 and 12-2. And the pressing force of the center pressing portion 62 should be at least equal to or greater than the force that the center portion of the open cell 10 tries to rise in the process of bending.

위와 같이 오픈 셀(10)의 가운데 부분을 중앙 누름부(62)로 눌러서 잡아준 다음에는, 그 상태에서 좌우측 누름부(64-1, 64-2)를 서서히 곡면형 받침부(50) 쪽으로 똑같이 하강시킨다(도 4c 참조). 오픈 셀(10)이 평판형으로 있는 상태에서 좌우측 누름부(64-1, 64-2)를 하강시키면 좌우측 누름부(64-1, 64-2)의 좌우측 말단부터 오픈 셀(10)의 표면에 먼저 닿게 되고, 오픈 셀(10)은 좌우측 말단부터 동일한 힘을 받아 아래로 휘어진다. 좌우측 누름부(64-1, 64-2)를 오픈셀 누름부(50)의 상면(52)과의 간격이 상기 간격(d)이 될 때까지 하강시킨다. 그러면, 오픈 셀(10)은 그의 가운데 부분에서 좌우 양쪽 끝으로 가면서 서서히 휘어지면서 오픈셀 누름부(50)의 상면(52)과 접촉해나가서 마지막엔 도 4c와 같은 상태에 이른다(S18 단계).After the central portion of the open cell 10 is pushed and held by the center pushing portion 62 as described above, the left and right pushing portions 64-1 and 64-2 are gradually lowered toward the curved face receiving portion 50 in this state (See FIG. 4C). When the left and right pushing portions 64-1 and 64-2 are lowered in a state that the open cell 10 is in the form of a flat plate, the left and right ends of the left and right pushing portions 64-1 and 64-2 And the open cell 10 receives the same force from the right and left ends and bends downward. The left and right pushing portions 64-1 and 64-2 are lowered until the gap between the left and right pushing portions 64-1 and 64-2 and the upper surface 52 of the open cell pressing portion 50 becomes the distance d. Then, the open cell 10 is gradually bent from the center of the open cell 10 to both the left and right ends thereof, and comes into contact with the upper surface 52 of the open cell pushing portion 50 to reach the state shown in FIG.

그 상태에서는 도시된 것처럼 오픈 셀(10)은 곡면형 받침부(50)와 오픈셀 누름부(60)의 곡률 즉, 제1곡률만큼 휘어진 상태가 된다. 또한, 오픈 셀(10)의 가장자리 둘레 부분은 곡면형 받침부(50)와 오픈셀 누름부(60)의 바깥으로 돌출되어 있다. 이런 상태에서, 벤딩된 오픈 셀(10)을 패널 전방 프레임(30)에 장착, 결합시킨다. 이를 위해, 우선 패널 전방 프레임(30)을 위로 들어올린다. 이를 위해 가동팔(66)이 패널 전방 프레임(30) 쪽으로 이동하여 손부재(67)가 패널 전방 프레임(30)의 적어도 마주보는 두 지점을 받치거나 붙잡아서 수직 상방으로 들어올려 그