High-temperature polysilicon technology Character LCD Modules

Tsingtek Low temperature lcd display polysilicon technology and high-temperature polysilicon is a corresponding (High Temperature Poly-Silicon, referred HTPS) concept we have previously mentioned , the use of high-temperature polysilicon quartz glass as the substrate low temperature lcd display , and the high purity quartz glass are very expensive, and very difficult to achieve a larger size , which determines the temperature polysilicon technology can not as a display of the computer. However, large-screen HDTV lcd graphic display modules Projection TV (Large-screen projection TV) in areas such as high-temperature polysilicon technology found in commercial / home front projector (Front projectors), his own position , especially in the three-piece LCD projection system, high temperature polysilicon technology in the field of global market share as high as 55 %.

Low-temperature polysilicon Character LCD Modules rising star

As early as 1999, the low-temperature polysilicon Tsingtek low temperature lcd display has been around , so it is far from what the new technology . However, due to various reasons, the slow development of low-temperature polysilicon technology , and even stay long in words, until the recent breakthrough in the field appears to be outside again before starting to pay attention . Low-temperature polysilicon stands for "Low Temperature Poly-Silicon (LTPS, polysilicon is also known as the p-Si, the same below ) ," which is a branch of polysilicon technology. On the lcd graphic display modules monitor , the adoption of polysilicon liquid crystal material has many advantages , such as thin-film circuits can be made thinner and smaller , lower power consumption and so on , we will focus on the following . However, in the early development of polysilicon technology , in order to transition from the amorphous glass substrate structure (a-Si) is a polycrystalline structure, it must use a laser annealing (Laser Anneal) high-temperature oxidation step , when the temperature exceeds the glass substrate graphic lcd display module . Known, ordinary glass softens at this high temperature melting , can not work properly , and only the silica glass to be able to withstand such high temperature processing . The quartz glass is not only expensive and sizes are smaller , not as a display panel makers naturally chose the cheap amorphous material (a-Si), which is the situation we see today. However, the industry has not given up efforts to develop low-temperature polysilicon technology become the consensus , after years of effort, low-temperature polysilicon finally step into reality. Compared with the conventional high temperature polysilicon , low temperature polysilicon although laser irradiation step needs , but it is used as a heat source is an excimer laser , the laser transmission through the system will produce a uniform distribution of the laser beam energy in the amorphous structure and projected on a glass substrate when the glass substrate is an amorphous silicon structure of the energy absorption of the excimer laser , the structure will be transformed into polycrystalline silicon . Since the entire process is completed in less 500-600 ° C , conventional glass substrate can withstand , which greatly reduces the manufacturing cost , the polysilicon LCD technology into the display area also feasible .

Character LCD Modules defect and technology breakthrough

Due to limitations inherent principle , LCD display quality in terms of color CRT is still difficult with the same par . We know that Tsingtek the graphic lcd display module  panel itself is unable to achieve self- luminous, but it can play a role in blocking the light , in order to achieve a complete display, a backlight assembly must be designed for it (Backlight) - backlight emits light, after the reflection plate , light guide plate , an optical diffusion sheet , a prism sheet and other auxiliary member is irradiated to the liquid crystal panel , a liquid crystal panel of the electrical drive signal at a precise determined luminous -off of each pixel region , and the color filter role in the formation under different shading , different colors of light output - in the user point of view, is shown on the LCD screen, the established color screen. Such works exist many drawbacks : First , relying on the filter in order to achieve color output , and because the driver IC restrictions , early color lcd display module for each channel can be achieved only 6bit color combinations , RGB three color channels add up to 18 display can show only the total number of 262,144 kinds of colors , which is 24-bit true color has a long distance. Because not show enough color , graphic lcd display module is difficult to achieve a satisfactory level ; secondly , LCD backlight to be able to help the formation of light output , and quality characteristics of the backlight of the Serial Lcd Display Module quality , use of life expectancy and other indicators have a significant impact . Widely popular backlight type CCFL cold cathode fluorescent lamp, it has a low cost , mature technology , etc., both the performance and stability are proven , but the cold cathode fluorescent tube light sources are light emitted want to spread evenly each region of the panel requires relatively complex support assembly more difficult to control the thickness of the screen . And CCFL backlit color display in terms of mediocre , life is also more general ; once again , the energy efficiency of the backlight low. In the light from the backlight to transfer the screen , the light energy loss is very serious , and ultimately only about 6% of energy use may be true , the energy efficiency is quite low. In order to achieve higher brightness and contrast , manufacturers must increase the output power of the light source lamp or increasing the number of adverse consequences is the machine power up. This has much influence on the desktop LCD monitor or LCD TV will not, but a great influence on the laptop LCD screen . LCD is the highest -power laptop components , in order to maximize battery life , the industry actively develop low-power LCD screen , while the energy efficiency of the backlight is clearly contrary thereto .

Character LCD Modules liquid crystal display technology analysis of recent progress

In just a few years time , LCD rapidly replacing CRT, become occupy the mainstream display technology. The prices are civilians , while the Tsingtek color lcd display module quality is also getting better and better . Initially, the viewing angle is small, long response time graphic lcd display module is considered the most serious flaw in the joint efforts of the major panel makers , have successfully developed a new generation of Serial Lcd Display Module panels , and quickly mass production in a very short time. Achieve universal access to a new generation of panel viewing angle of 160 degrees or more , and some more excellent technology can achieve 170 -degree viewing angle , so almost the same level as CRT , LCD narrow perspective of a certain defect changed . Secondly , the new panels generally have less than 16 ms response time , many products even down to the level of 8 ms , and only when the response time exceeds 25 milliseconds , the human eye can clearly feel the image delay , a new generation of 3D LCD fully meet game application requirements. And to solve these two problems for the popularity of low temperature lcd display and lay a shot in the arm , coupled with increasingly lower cost , only 15 inches LCD monitor specifications realized price of civilians , even the 17-inch products fall into the 2,000 yuan , the mainstream replace CRT is a natural thing , and this is what we see today in the market situation . Although perspective and response time has been greatly improved , the quality of the LCD display to get some improvement , but the pace of the LCD has not stalled , the industry 's technological improvements will focus on the following areas: improved image contrast , allow it to be exhibit a richer sense of hierarchy ; further improve the color performance of the LCD , so that it can be close to or even reach the level of the CRT ; continue to reduce the power consumption of the display , to enable more energy efficient and meet the needs of mobile applications ; the life of existing as the basis to further improve ; expand into new application areas, reform the manufacturing process , improve yields and achieve further reduce manufacturing costs.

Character LCD Modules defect and technology breakthrough

Due to limitations inherent principle , low temperature lcd display quality in terms of color CRT is still difficult with the same par . We know that the lcd graphic display modules panel itself is unable to achieve self- luminous, but it can play a role in blocking the light , in order to achieve a complete display, a backlight assembly must be designed for it (Backlight) - backlight emits light, after the reflection plate , light guide plate , an optical diffusion sheet , a prism sheet and other auxiliary member is irradiated to the liquid crystal panel , a liquid crystal panel of the electrical drive signal at a precise determined luminous -off of each pixel region , and the color filter role in the formation under different shading , different colors of light output - in the user point of view, is shown on the low temperature lcd display screen, the established color screen. Such works exist many drawbacks : First , relying on the filter in order to achieve color output , and because the driver IC restrictions , early LCD display for each channel can be achieved only 6bit color combinations , RGB three color channels add up to 18 display can show only the total number of 262,144 kinds of colors , which is 24-bit true color has a long distance. Because not show enough color , LCD color display is difficult to achieve a satisfactory level ; secondly , LCD backlight to be able to help the formation of light output , and quality characteristics of the backlight of the low temperature lcd display monitor display quality , use of life expectancy and other indicators have a significant impact . Widely popular backlight type CCFL cold cathode fluorescent lamp, it has a low cost , mature technology , etc., both the performance and stability are proven , but the cold cathode fluorescent tube light sources are light emitted want to spread evenly each region of the panel requires relatively complex support assembly more difficult to control the thickness of the screen . And CCFL backlit color display in terms of mediocre , life is also more general ; once again , the energy efficiency of the backlight low. In the light from the backlight to transfer the screen , the light energy loss is very serious , and ultimately only about 6% of energy use may be true , the energy efficiency is quite low. In order to achieve higher brightness and contrast , manufacturers must increase the output power of the light source lamp or increasing the number of adverse consequences is the machine power up. This has much influence on the desktop LCD monitor or LCD TV will not, but a great influence on the laptop LCD screen . LCD is the highest -power laptop components , in order to maximize battery life , the industry actively develop low-power LCD screen , while the energy efficiency of the backlight is clearly contrary thereto .

Character LCD Modules liquid crystal display technology analysis of recent progress

In just a few years time , accory color lcd display module rapidly replacing CRT, become occupy the mainstream display technology. The prices are civilians , while the LCD display quality is also getting better and better . Initially, the viewing angle is small, long response time LCD is considered the most serious flaw in the joint efforts of the major panel makers , have successfully developed a new generation of graphic lcd display module panels , and quickly mass production in a very short time. Achieve universal access to a new generation of panel viewing angle of 160 degrees or more , and some more excellent technology can achieve 170 -degree viewing angle , so almost the same level as CRT , LCD narrow perspective of a certain defect changed . Secondly , the new panels generally have less than 16 ms response time , many products even down to the level of 8 ms , and only when the response time exceeds 25 milliseconds , the human eye can clearly feel the image delay , a new generation of 3D Serial Lcd Display Module fully meet game application requirements. And to solve these two problems for the popularity of LCD and lay a shot in the arm , coupled with increasingly lower cost , only 15 inches LCD monitor specifications realized price of civilians , even the 17-inch products fall into the 2,000 yuan , the mainstream replace CRT is a natural thing , and this is what we see today in the market situation . Although perspective and response time has been greatly improved , the quality of the LCD display to get some improvement , but the pace of the LCD has not stalled , the industry 's technological improvements will focus on the following areas: improved image contrast , allow it to be exhibit a richer sense of hierarchy ; further improve the color performance of the LCD , so that it can be close to or even reach the level of the CRT ; continue to reduce the power consumption of the display , to enable more energy efficient and meet the needs of mobile applications ; the life of existing as the basis to further improve ; expand into new application areas, reform the manufacturing process , improve yields and achieve further reduce manufacturing costs.

An automotive radar Character LCD Modules enclosures innovative design

In radar systems, electronic cabinets and Tsingtek Serial Lcd Display Module and control 

units occupy an important position , and its design is good 

or bad will not only affect the specific fast and reliable 

operation . Also gives intuitive visual experience , or even 

directly affect the market competitiveness of the products. 

Therefore, graphic lcd display module should be given adequate attention. An 

electronic cabinet design industrial design as a new product 

design methodology is the advanced science and technology