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Liquid crystal display device with touch sensor and driving method of liquid crystal display device

A liquid crystal display device and sensor technology, applied to instruments, static indicators, data processing input/output processes, etc., can solve the problems of pixel aperture ratio and transmittance decrease, display transmittance decrease, etc., to achieve Effect of Penetration Decrease

Inactive Publication Date: 2017-01-04
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0007] To sum up, in the prior art self-capacitance touch display panel, since the touch leads connected to the touch sensor unit are made of specific metal, it is necessary to increase the width of the black matrix to cover the touch leads. It usually leads to a large decrease in the pixel aperture ratio and transmittance, which will cause a large decrease in the transmittance of the display

Method used

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  • Liquid crystal display device with touch sensor and driving method of liquid crystal display device
  • Liquid crystal display device with touch sensor and driving method of liquid crystal display device
  • Liquid crystal display device with touch sensor and driving method of liquid crystal display device

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Embodiment Construction

[0039] Embodiments of the present invention provide a liquid crystal display device with a touch sensor and a driving method thereof for improving the transmittance of a touch display panel.

[0040] The present invention is realized based on the following considerations:

[0041] In order to solve the problem of lower transmittance of pixels, the most direct method is to reduce the width of the black matrix. Based on the structure of the touch-sensitive display panel in the prior art, simply reducing the black matrix will cause the liquid crystal deflection disorder area to be destroyed. exposed, such as Figure 16 As shown, if the left side width of the black matrix 221 is simply reduced, the area between the common electrode 213 and the Tx lead 212 will be exposed, and the liquid crystal in the exposed area is due to the edge of the electric field formed by the pixel electrode 214 and the common electrode 213. The deflection will be disordered, which will affect the overal...

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Abstract

The invention provides a liquid crystal display device with a touch sensor and a driving method of the liquid crystal display device, and relates to the technical field of liquid crystal display. In order to solve the problem that the penetration rate of a display in the prior art is greatly reduced, a touch function is added in pixels of the liquid crystal display device; the touch function is realized through a touch lead; a common electrode covered by a data line between a blue sub-pixel and a red sub-pixel of two adjacent pixel units is configured as the touch lead. The touch lead serves as a touch line in a touch scanning stage, and serves as a common electrode in a non-touch scanning stage. The liquid crystal display device is mainly applied to liquid crystal flat panel displays.

Description

technical field [0001] The invention relates to the field of liquid crystal display technology, in particular to a liquid crystal display device with a touch function. Background technique [0002] Liquid Crystal Display (LCD, Liquid Crystal Display) is currently the most widely used flat panel display, and has gradually become widely used in various electronic devices such as mobile phones, personal digital assistants (PDA), digital cameras, computer screens or notebook computer screens. monitor with a high-resolution color screen. With the development and progress of liquid crystal display technology, people have put forward higher requirements for the display quality, appearance design, and human-machine interface of liquid crystal displays. Touch technology has become a hot spot for technological development because of its convenient operation and high integration. The existing thin film transistor liquid crystal display mainly includes two glass substrates and a liquid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1362G06F3/044G06F3/041
CPCG02F1/136286G06F3/0416G06F3/044G02F1/13338G02F1/1362G02F2201/121G02F2201/124G06F3/0412G06F3/0443G06F2203/04103G02F1/133514G09G3/3677
Inventor 郝思坤
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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