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Liquid crystal display device touch detection unit, touch display unit and detection method

A liquid crystal display device, touch detection technology, applied in static indicators, instruments, computing and other directions, can solve the problems of increased thickness, decreased brightness, etc., to achieve the effect of reducing thickness, increasing aperture ratio, and solving decreased brightness

Active Publication Date: 2015-12-02
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a touch detection unit, a touch display unit and a detection method integrated in a coplanar switching liquid crystal display device, so as to solve the problem of directly bonding a touch panel to a coplanar switching liquid crystal display device in the prior art. surface, resulting in problems such as decreased brightness and increased thickness

Method used

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  • Liquid crystal display device touch detection unit, touch display unit and detection method
  • Liquid crystal display device touch detection unit, touch display unit and detection method
  • Liquid crystal display device touch detection unit, touch display unit and detection method

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Embodiment Construction

[0046] The invention proposes a touch detection unit integrated with a coplanar conversion display liquid crystal display panel. For a better understanding of the present invention, the detailed description is as follows.

[0047] Such as image 3 As shown, it is a schematic diagram of a partial array circuit of a touch detection unit integrated in a coplanar switching liquid crystal display device according to the present invention, and the touch detection unit includes a signal transmission line 103 a and a first thin film transistor 001 .

[0048] Specifically, the touch detection unit includes a first thin film transistor 001, the gate of the first thin film transistor 001 is connected to the scanning line 101b of the liquid crystal display device, and the source of the first thin film transistor 001 is connected to the signal transmission line 103a connected, and the drain of the first thin film transistor 001 is used to connect to a touch terminal (not shown).

[0049] T...

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PUM

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Abstract

The invention provides a touch detection unit integrated in a liquid crystal display device, which comprises a signal transmission line, a first thin film transistor, a touch terminal, a detection terminal and a detection signal receiver, wherein the signal transmission line and a scanning line of the liquid crystal display device are arranged in a crossed mode; the gate of the first thin film transistor is connected with the scanning line of the liquid crystal display device, the source is connected with the signal transmission line, and the drain is connected with the touch terminal; and the detection terminal is connected with the detection signal receiver and arranged relative to the touch terminal. The invention also provides a touch display device containing the touch detection unit and a detection method thereof, and a liquid crystal display device containing the touch detection unit. By integrating the touch detection unit in the liquid crystal display device, the invention reduces the thickness of the liquid crystal display device integrated with the touch device, and solves the problem of brightness decrease of the liquid crystal display device.

Description

technical field [0001] The invention relates to a liquid crystal display touch-sensing input device, in particular to a touch detection unit, a touch display unit and a detection method of a coplanar switching type liquid crystal display device. Background technique [0002] Due to the rapid development of today's technology, portable electronic devices have gradually become one of the electronic products that modern people rely on. Generally speaking, as the current PDA (Personal Digital Assistant) mobile phone is all added with the function of touch panel (touchpanel), thus allows the user to directly operate the PDA mobile phone through a stylus or fingers. However, since the touch panel of the existing PDA mobile phone is generally a push-type touch panel formed by superimposing a display (such as a thin film transistor liquid crystal display or a thin film field effect transistor) and a touch panel, the touch panel made in this way The control panel will cause the brig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/133G02F1/1362G02F1/1368G02F1/1343G06F3/041
Inventor 黄贤军丁晓星
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD