china graphic cob lcd module free sample

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Dr Pan: Hello, Greg. COB is the abbreviation for chip on board. It is a technology, which IC is bonded directly onto PCB. COB technology is usually used in LCD module with sophisticated and complex functions.

There is a misunderstanding about COB LCD module. Since it is very stable, people would use this structure no matter what. But COG LCD module is very stable, too. It can totally replace simple COB LCD module with only display function and much cheaper for large quantity.

For the sophisticated LCD module with complex functions, COB technology may be the cheapest solution since it integrates all the components on one board and it can reduce the number of IC and board. But every coin has two sides. Even though it is very stable and there is a very small chance that it will malfunction, it will be irreplaceable if it does. There is why we recommend hybrid structure which integrate COB technology and COG technology together. It has all the merits of both technologies.

We have thousands of standard products that are in stock and available from our Seattle, WA and Hong Kong warehouses to support fast product development and preproduction without MOQ. The stock covers TN, STN LCD display panels, COB, COG character LCD display, graphic LCD display, PMOLED, AMOLED display, TFT display, IPS display, high brightness and transflective, blanview sunlight readable display, super high contrast ratio display, lightning fast response displays, efficient low power consumption display, extreme temperature range display, HMI display, HDMI display, Raspberry Pi Display, Arduino display, embedded display, capacitive touch screen, LED backlight etc.  Customers can easily purchase samples directly from our website to avoid time delays with setting up accounts and credit terms and shipping within 24 hours.

Many of our customers require customized OEM display solutions.  With over two decades of experience, we apply our understanding of available display solutions to meet our customer’s requirements and assist from project concept to mass production. Using your ideas and requirements as a foundation, we work side by side with you to develop ideas/concepts into drawings, build prototypes and to final production seamlessly. In order to meet the fast changing world, we can provide the fastest turnaround in the industry, it takes only 3-4 weeks to produce LCD panels samples and 4-6 weeks for LCD display module, TFT LCD, IPS LCD display, and touch screen samples. The production time is only 4-5 weeks for LCD panels and 5-8 weeks for LCD display module, TFT LCD, IPS LCD display, and touch screen.

Ckingway technology Co., Ltd. Established in 2009, we focus researching & developing, design, manufacture and sales integrated into one target on resistive touch panel, capacitive touch panel and LCD/LCM (liquid crystal display module). Coming along with electronics consumer products increasing rapidly recently, our product has been holding steady marketing share in touch display field under our teamwork strongly, while industry chain getting more ruggedized, professionalized.

We now have modern production workshops, advanced production equipment, professional production lines and complete supporting facilities, and professionally design and manufacture BOE LCD Panel, HV650QUB N9A, LSF490HN03 suitable for different users. We will, as always, adhere to the service-centric business tenet, adhere to and improve the model of training before sales. In the spirit of "design first, keep improving", we will further strengthen management, optimize structure and expand scale.

We supply lcd panel 23.6inch-98inch. 10 years experience TV LCD Panle supplier, support different panle brand, such as BOE, SAMSUNG, LG, CSOT, AUO, PANDA, INNOLUX, CHOT, HKC Lcd Open Cell for tv assembling or replacement.

We have combined our own technical advantages and used years of experience to develop various Transmissive Blue White 122*32 Mono Graphic LCD Module Panel COB. With the most advanced production technology and high-quality supporting services, our products are appreciated by our customers. The company is willing to cooperate with friends from all walks of life on the basis of mutual benefit to create a better life. We take performance improvement as the fundamental to further promote the comprehensive, healthy and sustainable development of the company.

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Shopping environment to upgrade the product display and lighting environment put forward higher request, in order to better improve customer experience, Walmart in China launched a nationwide store environment transformation plan, HONOURTEK and CDN lighting provides professional lighting solutions for Wal-mart, which is used as the lighting standard of Wal-mart shopping malls in the whole country, and helps Wal-mart to upgrade.

It adopts the COB LED light source of HONOURTEK supermarket series, and the professional light color highlights the characteristics of the products. The lighting places such as hypermarkets, boutique supermarkets, shopping malls and convenience stores provide the local key lighting average Ra>90, and the color rendering effect of the light source is excellent and true to original color. It is widely used in large stores, boutique supermarkets, shopping malls, convenience stores and other lighting places to provide local key lighting.

More many different alphanumeric types ,graphic types, give you plenty to chose from- 1x8 to 4x40 character displays ,122x32 to320x240 Graphic displays. Standard backlight options of low-power electroluminescent, high-brightness EcoBrightTM non-powered backlight by special order. LED or CFL backlights, low profile edge light options for thinner displays.

* It can be customized for monochrome LCD, backlight, FPC and PCB Board with a little tooling charge, and customized shape is suitable for customer"s mechanical design.

Extensive rangeProviding complete solution from Mono to Color LCD module, Optical bonding between display to cover glass as well as cover glass to touch screen

Crystalfontz America is the leading supplier of LCD, TFT, OLED and ePaper display modules and accessories. We specialize in providing our customers the very best in display products, cables and connectors.

In addition to our large catalog of displays, we offer LCD development kits, breakout boards, cables, ZIF connectors and all of the LCD software and drivers you need to develop your product or project. We are located in the U.S. so we can get product to you fast!

An LCD or liquid crystal display is a combination of two states of material ie, the solid &  the liquid. These displays use a liquid crystal to produce a visible image. LCDs are super thin technology display screen that are used in cell phones, TVs, portable video games, laptops, computer screen, portable video games. Compared to CRT (cathode ray tube) technology, this technology permits displays to be much thinner. The LCD is composed of different layers which contain two electrodes and polarized panel filters. This technology is used to display the image in electronic devices. It  is made up of active matrix or passive display grid. Most of the gadgets with LCD display uses active matrix display. There are various technologies used to make digital displays. But, we are discussing two different LCDs. The alphanumeric display and customized LCD.

The most common types of monochrome LCDs are called character display or alphanumeric display. Alphanumeric LCD displays are used to display alphabets and numbers. The 16×2 intelligent alphanumeric dot matrix displays are capable of displaying 224 different symbols and characters. Generally, alphanumeric LCDs  are used widely in these applications: cellular phones, home appliances,  meters, word processors, communication, medical instruments, etc.. These displays are widely used due to the following reasons:

Hardware designers and engineers favor alphanumeric LCD displays for fast developing products. These types of devices contain their own controller driver chip with a character map built into the IC. To integrate the software, the character map makes it easy for the design. When any designer or engineer wants to display or show a letter, all they need to do is to send a command requesting the capital. This is much easier than a graphics LCD module wherein each spot on the letter A needs to be addressed. This is a highly time consuming activity.

The most common structure of alphanumeric display is known as a chip on board (COB) where in the PCB (printed circuit board) is attached to the LCD glass. The name COB means that the controller driver chip is placed on the back of the PCB. This module handles vibration very well. And also the increasing holes placed on the PCB permit an easy and secure method to attach the LCD to the customer’s product.

Alphanumeric LCD displays are designed in standard configurations such as LCD display 16×2, 8×1 and 40×4. The identification of alphanumeric displays is broken down into the number of characters in each row and then the number of rows. The example of this is a 16×2, where there are 16 characters in each row, and there are two rows of these characters. This enables the alphanumeric displays to display 32characters at a time.

A character can be any letter: capital or small, any number,and punctuation mark, such as comma, period and backslash. The character table built into the microcontroller of the LCD display displays 255 different characters.Furthermore, there are many languages, so you can select a character table that displays English, German and French or any other language. Most of the alphanumeric LCD displays cannot display Chinese and Japanese languages without the use of a larger character size. This means that a 16×2 is built to display English characters, but not the Chinese;Chinese will require larger than 16×2 display.

The alphanumeric displays consist of LCD displays or a set of LEDs that are connected in common anode or common cathode mode. 7 segment displays are used for only numbers in decimal and hexadecimal format.For both alphabets and numbers, the 18 segment display consisting of the 5 by 7 dot matrix is used.

Alphanumeric LCD Displays are most commonly used in test and measurement equipment,  process control equipment, handheld devices, PLC’s, data loggers, PCO displays  energy meters, and a host of other applications. Displaying Scrolling Messages on Alpha Numeric Displays using a PC is one of the most frequently used application of alphanumeric display.

The above block diagram can be used to display scrolling message on alphanumeric LCDs by using PC. The information can be sent through a PC that is interfaced with an 8051 microcontroller through MAX232. An external memory is connected to the microcontroller which  stores the information. The endless scrolling can be displayed using alphanumeric LCD display, which is connected to a microcontroller.

In present days, different types of LCDs are used in a wide range of applications from calculators, watches, games to medical and industrial applications. One of the main advantages of LCDs over other display technologies is the display content can be modified to satisfy the exact requirements of an application. In this way, the customized LCD panels can present particular user interface information that enhances the product value and performance.

Customized LCD displays are used to display a combination of  numeric, alphanumeric digits, on/off indicators,messages, graphic icons, symbols, pie charts, bar graphs, etc. The content of this panel is limited only by the imagination of the product designer. There are manyfactors that should be considered in the design of a customized LCD panel. In order to design a quotation for a customized LCD panel, the following information is necessary:LCD panel, display modes, polarisers, viewing mode, backlight requirement, operating environment, drive method, connection method, and a keypad is required if applicable.

This is all about Alphanumeric and Customized LCD displays with Applications. We all know that these LCD displays play an essential role in many applications like measurement equipment,  process control equipment, handheld devices, PLC’s, Measuring device, Marine equipment, Medical equipment, Automotive display etc. This article deserves readers’ feedback, suggestions and comments. Furthermore, any doubts regarding electronics projectsreaders can post their comments in the comment section below.