varitronix tft display supplier

Thin-Film Transistor Liquid Crystal Displays use thin-film transistors to control the voltage applied to the liquid crystal layer at a sub-pixel level. The structure of TFT LCDs consists of a TFT “sandwich” and a BLU (Backlight Unit). A typical configuration is shown in the schematic diagram below.

Firstly, between the back and front polarizers, TFT LCD cells are made with two glass substrates – one for color filters, the other for a TFT array – and a liquid crystal layer sandwiched in between.

For normally black TFT LCDs, if we follow along a piece of light setting off from its backlight source, it will bea)guided uniformly by LGP;b)reflected and enhanced by BEF and DBEF;c)polarized by the back polarizer;d)polarization changed by twisted LC under the voltage applied by TFT arrays;e)“tinted” red/green/blue by corresponding color filter of the subpixel;f)let through the front polarizer by matched polarization; andg)finally, it will reach the surface and appears in viewer’s eyes.

For normally white panels, processd)will be the opposite – known as the polarization rotation effect, light is twisted in a voltage-off stage and can pass through the front polarizer by default, thus displaying white normally. However, when the voltage applied increases, this polarization rotation effect would be gradually diminished. And the light would not be able to pass through the front polarizer anymore without changing its polarization. In this way, certain pixels will appear in different colors.

Normally black LCDs have higher contrast and wider viewing angles without grayscale inversion phenomenon compared to their normally white relatives. And whether TFT LCDs are normally black or white depends on their LC switching mode:

2Chen, HW., Lee, JH., Lin, BY.et al.Liquid crystal display and organic light-emitting diode display: present status and future perspectives.Light Sci Appl7,17168 (2018).https://doi.org/10.1038/lsa.2017.168

As previously mentioned, TN mode functions with the polarization rotation effect. Under traditional TN/VA display mode, the liquid crystal molecules are vertically arranged, with a relatively narrow visual angle. When an external force is exerted on the screen, the liquid crystal molecular structure will sink in a herringbone pattern to slowly recover – a pattern called vertical alignment. Therefore, an evident “water ripple” usually appears when the display surface is touched and impacts the user experience. In comparison, the VA mode provides higher contrast. And MVA (multi-domain vertical alignment) is an upgraded version of VA with improved viewing angles.

Since the Company’s inception by a team of enterprising academics at the University of Hong Kong in 1978, Varitronix have grown to become one of the leading manufacturers of Liquid Crystal Displays through years of innovation in research, design, production scalability, and technology advancement.

Through the following years of finding local success, Varitronix envisioned a much larger scale operation for the ever-increasing demand for displays. The trajectory plan eventually led the Company to be officially listed on the Hong Kong Stock Exchange in 1991 (HKSE code: 710), continuing its influence and strong presence to serve customers at the local, national, and global levels.

In 2016, BOE, an IoT company providing intelligent interface products and services for information interaction and human health, sought interest and became a major shareholder of Varitronix, which fueled the Company into the next great leap forward. BOE Varitronix, as the Company is now called, reflects purely on our integration leading to sustainable development in business, innovation technology, capital, and resource utilization.

Nearly half a century later, BOE Varitronix continues its time-honored tradition in providing the one stop shop for the latest display technologies, backed up by solid research and commitment to quality, customized to the individual needs, and delivered economically and efficiently.

BOE Varitronix, formerly a of a Hong Kong company focusing on R&D and manufacturing of automotive display and industrial display, has been established for more than 40 years. In 2016, BOE became the major shareholder of Varitronix.

As a leading manufacturer of small-to-medium-sized LCDs, BOE Varitronix offers complete solutions for a wide range of applications, from automotive and telecommunications, to industrial and consumer applications.

Monochrome display has been the core business for BOE Varitronix, who offer TFT LCD modules for electric meters, high-end white goods, home automation applications, consumer products and markets related to IoT, as well as medium-to-large sized monochrome displays aimed at high-end display markets.

BOE Varitronix is one of the world’s leading display solution providers for the automotive industry. The company’s strategy in the automotive display business is to continue growing market share in major automotive markets through the promotion and development of medium-to-large-sized standardized platform TFT module products.

BOE Varitronix has grown into a manufacturer with scalable production capacity, an extensive sales network and over 5,000 staff. The company’s major production bases expanded from Heyuan (Guangdong Province) to Chengdu (Sichuan Province)

BOE Varitronix Limited (BOEVx or the "Company”) formerly Varitronix International Limited is a Hong Kong-based investment holding company belongs to DAS BG (Devices and Sensors Business Group) mainly focusing on automotive display module business. BOEVx is the sole sales platform of BOE Group for automotive businesses.

BOE Varitronix Limited, the world’s leading manufacturer of TFT and passive display, established in 1978 by a group of academics who combined rigid R&D, innovative product designs and highly production efficiency to fulfill the utmost in customer satisfaction. BOEVx core businesses are automotive display and industrial display, the Company operates businesses in China, Korea, Japan, Europe and America and have established strategic partnership with certain sizable Tier 1 customer in the automotive industry. This is an important milestone for the Group to obtain further market shares and future business opportunities in various automotive-related areas.

BOE Varitronix Limited is listed on the Hong Kong Exchange (00710.HK) since 1991. In 2016, BOE Group became a major shareholder of BOE Varitronix, which turned BOE Varitronix into a new era. This integration led to sustainable development in business, innovation technology, capital and resource utilization.

The change of mobility behaviour of users will change and reshape the automotive and industrial industry. The mobility of the future will be much easier, more flexible and more individual for users. BOE Varitronix will continuous

- Established in 1978 by a group of academics from Hong Kong"s universities, Varitronix Ltd. has grown to become one of the world"s leading manufacturers of Liquid Crystal Displays (LCD). A determination to provide a premium service, as well as a premium product has seen the company grow steadily to the point in 1991 when our associated holding company, Varitronix International Limited, was successfully launched on the Hong Kong stock exchange.

From the outset Varitronix has been a research-driven company, working with customers to develop advanced LCD products for a broad range of markets,including sophisticated commercial, industrial, medical and military display products. These products range from simple LCD displays to complete turnkey assemblies for many of the worlds leading OEM manufacturers. The emphasis on providing products of the highest quality was instrumental in Varitronix gaining ISO 9001 certification in March 1995.

Product line includes: Standard & Custom Graphic, Dot-Matrix, LCD Glass, Modules and Turnkey Systems. We offer the latest technologies in: Twisted-Nematic (TN), High-Twist (HTN), Super-Twist (STN), Extended-Temp. STN, Black & White Film-Compensated STN, Double STN, Guest-Host, Heilmeier Displays and Touch-Sensitive Screen.

Varitronix is addressing automotive dashboard and other control panel applications with a new mono TFT technology that enables advanced, attractive and informative consoles whilst avoiding the complex drive requirements of full colour TFT. Many automotive and industrial instrumentation projects have no requirement for full colour, making monochrome TFT an ideal high performance alternative to DSTN and other passive display technologies. Boasting ...