middle lcd panel supplier

This BlackBerry Z10 LCD assembly spare part includes the LCD display, Digitizer Touch Screen, Middle Plate, Power Button, Volume Key, Ear Speaker, Microphone, Vibrating Motor and Earphone Jack with Flex Cable Ribbon.

This is the BlackBerry Z10 4G version. Do not confuse this item with the 3G Version of the BB Z10 LCD assembly with middle plate. Please assure the version before purchasing.

The installation of the BlackBerry Z10 LCD screen and digitizer assembly with frame should be done by a qualified person. ETS is not responsible for any damage caused during installation.

The whole industry chain of the display panel industry is relatively long. The key supporting materials upstream include a glass substrate, optical film, liquid crystal material, polarizer, and filter, among which the domestic production rate of glass substrate and a polarizer is less than 20%, and the domestic substitution space is broad.

The middle reaches are mainly domestic and foreign panel manufacturers. At present, BOE, China Star Optoelectronics, and other domestic companies have occupied the main market in the world and are the world’s leading panel enterprises.At present, the panels can be divided into three types: LCD panels, OLED, and mini LED.

The future technology trend includes QNED, Micro LED, and other technologies. According to the different types of panels, the overall composition and materials are different. It mainly includes a polarizing plate, a glass substrate, liquid crystal material, a filter, optical film, etc. Display panels are mainly used in electronic devices such as TV, desktop computer, notebook, and mobile phone, including LCD panels, OLEDs, and mini LEDs.

The whole industry chain of the display panel industry is relatively long. The key supporting materials upstream include a glass substrate, optical film, liquid crystal material, polarizer, and filter, among which the domestic production rate of the glass substrate and a polarizer is less than 20%, and the domestic substitution space is broad. The middle reaches are mainly domestic and foreign panel manufacturers. At present, BOE, China Star Optoelectronics, and other domestic companies have occupied the main market in the world, and are the global panel leaders. Downstream applications are mainly in TV, computer, mobile phone, and vehicle display, and the overall demand continue to expand.

In terms of the profit of the overall industrial chain of the panel industry, taking LCD as an example, the distribution of gross profit of the upper, middle and downstream industries of the LCD panel industry chain is quite unbalanced at present, and the overall profit of the upstream raw materials and the end of the downstream sale is relatively high. Among them, the overall profit of the polarizer is relatively high, which is about 40%, from the perspective of the gross profit of the leading two years, The actual gross profit of the polarizing plate is more than 25%; Glass overall technology and equipment barriers deep overlay of Japanese and Korean companies block technology, the profit margin is higher than polarizer; The overall profit of downstream sales is also higher than that of panel integrators.

With the development of technology, the prosperity of the display panel industry has been maintained at a relatively high level in recent years, second only to the microelectronics industry in the information industry. Display panel shipments in the first half of 2022 reached 90.2 million, up 11.7 percent year on year.

The competition aspect, our industry market concentration is high, industry competition is intense. In terms of shipments by panel factory, BOE shipped 28.9 million panels in the first half of 2022, with a year-on-year growth of 17.2%, ranking first in display panel shipments. By business revenue, BOE Display panel business revenue is far ahead, in 2021, 202.219 billion yuan, accounting for 92.21% of the total revenue.

In the future, the display panel industry will continue to transfer to mainland China, and the integration progress of domestic panel manufacturers will be further accelerated. Although the overall domestic panel industry has been on the up and up at present, leading companies such as BOE occupy major global markets, in the long run, the layout of OLED, QNED, Micro LED, and other new technologies will still be the key to future industrial competition. Taking BOE as an example, the sales volume in 2021 will reach 836,000 square meters, with a year-on-year growth of 66.9%. The core technology is still the core of the future development of enterprises and industries.

Spurred by the rising sales of new energy vehicles and the trend of automobile intelligence, the demand for onboard display panels shows an explosive growth trend. The once minority on-board display panel has quietly become the third largest small and medium-sized panel market after mobile phones and tablets. At present, LCD is the main onboard display panel in China. With the gradual withdrawal of LCD production capacity by major panel companies in South Korea, the shipment volume of Chinese panels will surpass that of South Korea for the first time in 2021, and the position of local companies in the international market continues to improve.

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.

Remove the three jig screws from the display panel and replace with three screws (M3x5) to secure the display panel to the middle frame and display assembly base.

NOTE The jig screw is shipped with the replacement display panel. It is used to align the display panel to the display-assembly base.Table 1.Number of jig screwsThe following table list the number of jig screws available in the touch and non-touch replacement display panel:Display typeNumber of jig screwsTouch displayOne

Kingtech has been specializing in TFT LCD displays and touch screens since 2003. We mainly concentrate on small and middle-size display modules from 0.91 inches to 27 inch TFT LCD display, AMOLED & PMOLED displays. Our products are widely used in industrial, medical, smart home, handheld devices, etc.

Kingtech has been specializing in small and middle-size TFT LCD displays since 2003. Those displays are widely used in medical devices, industrial types of equipment, smart home solutions, handheld devices such as logistic devices, POS, test meters, telecoms, gas stations, automotive chargers.

With Strong R&D team support, more than 90% of our projects are custom-made products. Kingtech tools up FPC, capacitive touch panel, backlight (if necessary), and even custom-made LCD panel for customers. Both ODM and OEM orders are welcome!

Based on our TFT LCD display, we can also supply TFT resistive touchscreen, capacitive touch panel, driver board, HDMI board, LCD-related hard & software design, and even complete solutions. Our company started our business as LCD panel and driver IC distributor. Now, there still is a dedicated department to handle this business.

Kingtech has an LCD panel cutting and etching factory deeply works together with the LCD original manufacturer such as Samsung, Innolux, Hannstar, Sharp, BOE, Tianma. Therefore, we have a very good source to ensure long term and stable supply. Our LCD factory is ISO9001, ISO14001, and IATF16949 certificated with a production capacity of 800,000 pcs/month for display module and 500,000 pcs/month for capacitive touch panel production and optical bonding.