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In-cell touch liquid crystal display (LCD)

A liquid crystal display, embedded technology, applied in the direction of static indicators, instruments, optics, etc., can solve the problems of increasing the cost of control chips, affecting the display optical characteristics, and reducing the process yield, so as to improve the process yield and reduce wiring Density, the effect of increasing the aperture ratio

Inactive Publication Date: 2011-04-27
INNOCOM TECH (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems caused by the excessive number of sensing lines and sensing electrodes in the in-cell touch display in the prior art, the cost of the control chip is increased, the aperture ratio is reduced, the process yield is reduced, and the impact on both sides of the liquid crystal is caused when the touch is touched. It is necessary to provide an in-cell touch display that can reduce costs, improve aperture ratio, yield, and stabilize display optical characteristics.

Method used

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  • In-cell touch liquid crystal display (LCD)
  • In-cell touch liquid crystal display (LCD)
  • In-cell touch liquid crystal display (LCD)

Examples

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Embodiment Construction

[0015] Please refer to Figure 2A Figure 2B ,in Figure 2A It is a schematic diagram of a sub-pixel (sub-pixel) of the first embodiment of the embedded touch liquid crystal display of the present invention, Figure 2B yes Figure 2A A schematic cross-sectional view of the sub-pixel shown along line 2B-2B. The in-cell touch liquid crystal display includes a first substrate 10 , a second substrate 20 and a liquid crystal layer (not shown) sealed and filled between the first substrate 10 and the second substrate 20 . The first substrate 10 includes a first substrate body 11 and a plurality of scanning lines 12, a plurality of data lines 14, a plurality of sub-pixel control modules 16 and a plurality of touch sensing modules 18 formed on the first substrate body 11. .

[0016] Each sub-pixel control module 16 is located in an area surrounded by two adjacent scan lines 12 and two adjacent data lines 14 . Each sub-pixel control module 16 includes a display control transistor ...

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Abstract

The invention relates to an in-cell touch liquid crystal display (LCD). The LCD comprises a first substrate and a second substrate, wherein the first substrate comprises a plurality of touch sensing modules; each touch sensing module comprises a touch data reading line, a touch reading transistor and a contact electrode; the second substrate comprises a plurality of convex block structures; and each convex block structure has a conductive surface and is arranged opposite to one contact electrode. During use, when the convex block structures are contacted with one or certain contact electrodes, the touch reading transistors connected with the contact electrodes contacted with the convex block structures transfer signals to the touch data reading lines, and an external driving control module determines the touch positions according to the positions of the scanning lines and the touch data reading lines.

Description

technical field [0001] The invention relates to an embedded touch liquid crystal display. Background technique [0002] With the maturity of touch technology, a wide range of touch application products can be seen in the market, which shows that the future market growth of touch panel display can be expected. Traditional touch panels are mainly divided into external capacitive type and external resistive type. However, no matter which method is used, the touch panel module must be added to the display surface of the display module. The product has adverse effects, such as increasing the overall thickness and weight of the display, reducing the brightness of the display, reducing the contrast ratio, increasing the difficulty of production integration and thus increasing the cost. [0003] In order to solve the aforementioned problems, manufacturers of flat panel displays are all competing to develop integrated flat panel displays with built-in touch sensing functions. Pleas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/133G02F1/1362G02F1/1368
CPCG06F3/0412G06F3/047G02F1/13338G02F2201/40
Inventor 施博盛郑嘉雄
Owner INNOCOM TECH (SHENZHEN) CO LTD
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