Red, green, blue and white type thin-film transistor LCD device

A technology of liquid crystal display devices and thin film transistors, applied in nonlinear optics, instruments, optics, etc., can solve problems such as adverse effects, achieve the effect of increasing complexity and improving the brightness of color display

Inactive Publication Date: 2009-01-21
上海广电光电子有限公司
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

However, the above existing patents all drive the newly added transparent filter (W) part independently, and the common polarity inversion drive will also have adverse effects when using red, green, blue and white (RGBW) color filters. It is necessary to redesign the more complex drive circuit

Method used

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  • Red, green, blue and white type thin-film transistor LCD device
  • Red, green, blue and white type thin-film transistor LCD device
  • Red, green, blue and white type thin-film transistor LCD device

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] figure 2 It is a schematic diagram of the first red, green, blue and white sub-pixel structure of the present invention, please refer to figure 2 , the blue (B) sub-pixel divides it into two parts, one part area is set as the original blue color filter, and the other part area is set as the transparent color filter (W). When the area ratio of the transparent color filter (W) to the sub-pixel is 10%, that is, when the area ratio in the color display pixel is increased to 3%, the overall transmittance of the panel can be increased by 10% through simulation calculation.

[0023] For the red, green, blue and white liquid crystal display device provided by the present invention, please refer to Figure 3A and Figure 3B , the liquid crystal display device includes several gate lines 1 and source lines 2 arranged horizontally and vertically in par...

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PUM

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Abstract

The invention discloses a red green blue white type film transistor liquid crystal display device, comprising an array lower baseboard, a colorful film upper baseboard and a liquid crystal layer stuffed between the upper and the lower baseboards, wherein the array lower baseboard is formed with sub pixels in a matrix form, the colorful upper baseboard is provided with color filters of alternated red, green and blue filters, three adjacent sub pixels R, G, B form a colorful pixel display unit, the color filter of at least one sub pixel is provided with a transparent filter. The red green blue white type film transistor liquid crystal display device divides a single sub pixel into two parts, while one part is the prior color filter R, G or B, and the another part is a transparent filter, to improve color display brightness, eliminate TFT devices and avoid increasing the complexity of the system drive method.

Description

technical field [0001] The patent of the present invention relates to a thin film transistor (TFT) liquid crystal display device, in particular to a thin film transistor liquid crystal display device which uses red, green, blue and white (RGBW) color filters to realize high-brightness color display. Background technique [0002] A thin film transistor liquid crystal display panel generally includes an array lower substrate, a color filter upper substrate, and a liquid crystal layer filled between the upper and lower substrates. Pixel electrodes and common electrodes are respectively formed on the array substrate and the color filter substrate, and an electric field is formed between the upper and lower electrodes after power is applied, and the orientation angle of the liquid crystal molecules is modulated by controlling the change of the electric field intensity, thereby changing the light transmittance of the backlight source. Existing thin-film transistor liquid crystal d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1362G02F1/1335
CPCG02F2201/52
Inventor 陈文娟叶訢
Owner 上海广电光电子有限公司
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