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Liquid crystal display panel

A liquid crystal display panel and display area technology, applied in static indicators, nonlinear optics, instruments, etc., can solve the problems of different color mixing effects, different contrasts, color shifts, etc., so as to improve the color shift phenomenon and reduce the impedance difference. Effect

Active Publication Date: 2015-04-08
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] All in all, due to the delay effect of the wiring, the charging rate of the pixel units in different areas of the LCD panel display area will be different, resulting in different display brightness, different contrast, and different color mixing effects of the pixel units in different areas.
In particular, when the impedance difference between the data lines on both sides of the liquid crystal display panel and the impedance of the data line in the middle is too large, the serious color shift phenomenon described above will appear.

Method used

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Examples

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Effect test

Embodiment 1

[0034] image 3 It is a specific embodiment of the present invention. In this embodiment, the line width of the data lines in the display area increases gradually along the direction from the center of the display area to the two sides of the display area. This situation is mainly for the situation that the data line Rfanout in the fan-out area is much smaller than Cfanout. In this case, as the width of the data line in the display area increases continuously, the resistance value Rdata of the data line will decrease accordingly. Although the capacitance Cdata of the data line in the display area will also increase accordingly, because the capacitance Cfanout of the data line in the fan-out area is relatively large, the change of (Cfanout+Cdata) is relatively small, and its effect on the delay time constant RCdelay Changes have little effect. On the whole, the delay time constant RCdelay of the data lines on both sides of the liquid crystal display panel will be reduced due...

Embodiment 2

[0037] Figure 4is another specific embodiment of the present invention. In this embodiment, the line width of the data lines in the display area decreases gradually along the direction from the center of the display area to the two sides of the display area. This situation is mainly for the situation that the data line Rfanout in the fan-out area is much larger than Cfanout. In this case, as the width of the data line in the display area decreases continuously, the capacitance Cdata of the data line will decrease accordingly. Although the resistance value Rdata of the data line in the display area will also increase accordingly, because the resistance Rfanout of the data line in the fan-out area is relatively large, the change of (Rfanout+Rdata) is relatively small, and its effect on the delay time constant RCdelay changes have little effect. On the whole, the delay time constant RCdelay of the data lines on both sides of the liquid crystal display panel will be reduced du...

Embodiment 3

[0040] Figure 5 It is the third specific embodiment proposed by the present invention. In this embodiment, the line widths of several data lines located on both sides of the display area are uniformly narrowed along the direction from the upper end of the display area to the lower end of the display area, while the line widths of several data lines located in the middle of the display area are narrowed along the direction from the upper end of the display area to the lower end of the display area. The direction from the upper end of the display area to the lower end of the display area becomes evenly wider. In this case, although the line width of the data lines located on both sides of the display area narrows evenly along the direction from the upper end of the display area to the lower end of the display area, the capacitance Cdata of the entire data line is almost unchanged. , but the increase of the resistance value Rdata gradually decreases with the increase of the len...

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Abstract

The invention relates to a liquid crystal display panel comprising a data driven module, data cables positioned in a display area and arranged in parallel and a data cable harness positioned in a fan-out area. One end of the data cable harness is connected with the output end of the data driven module while the other end of the same is connected to the data cables in the display area. The data cables in the display area are different in width. Under the conditions that the liquid crystal display panel is in shortage of space and data wiring of the fan-out area cannot be changed, the traditional equal-width data cables are replaced with the gradually-varied unequal-width data cables arranged in the display area, impedance difference between the data cables on two sides and the middle data cable on the entire liquid crystal display panel is reduced effectively, and further color cast of the liquid crystal display panel is improved.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a liquid crystal display panel for improving the phenomenon of color shift. Background technique [0002] Liquid crystal display devices, especially thin film transistor liquid crystal display devices (TFT-LCD) have been widely used in various information products such as computers, flat-screen TVs and mobile phones due to their excellent performance. When designing and producing liquid crystal display panels, avoiding color mixing and color cast is an important issue that R&D designers must face. Mixed-color color cast means that the color display is uneven in the mixed-color screen, and one of the colors will stand out. For example, when the overall yellow screen is presented, the color of some areas will be reddish. There are many reasons for the color shift of the liquid crystal display device. For example, poor quality or poor contact of video signal lines (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1362
CPCG02F1/136286G02F2201/18G09G2300/0426G09G2320/0223G09G2320/0242G02F1/136295
Inventor 廖作敏韩丙
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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