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Touch screen and driving method thereof

A driving method and touch screen technology, applied in the direction of instrument, electrical digital data processing, data processing input/output process, etc., can solve problems such as variation, effective voltage difference, affecting picture quality, etc., to reduce the effective voltage difference and disturbance influence. The effect of reducing and improving quality

Active Publication Date: 2013-07-03
BOE TECH GRP CO LTD
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  • Abstract
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Problems solved by technology

[0008] In order to solve the problem that the existing touch screen changes the effective voltage difference between the two ends of the liquid crystal during the touch process and affects the picture quality, the present invention is proposed

Method used

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  • Touch screen and driving method thereof

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Embodiment Construction

[0022] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0023] Such as image 3 As shown, it is a schematic structural diagram of a touch screen according to an embodiment of the present invention. The touch screen embeds touch electrodes in the display panel 100, and the touch electrodes include touch signal input electrodes and touch signal output electrodes that are cross-isolated. electrode, the display panel 100 includes a data line 102, a gate line 103 and a first common electrode 101, the gate line 103 and the data line 102 define a plurality of pixel units, each pixel unit is provided with a pixel electrode, the first A common electrode 101 is divided into a plurality of regions at least along the direction of the data line, and each region of the first common electrode corresponds to at least one row...

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Abstract

The invention discloses a touch screen and a driving method thereof. The touch screen is characterized in that touch electrodes are internally embedded in a display panel; the touch electrodes comprise a touch signal input electrode and a touch signal output electrode, which are crossly arranged in an insulating manner; a first common electrode is at least divided into a plurality of regions along the direction of data lines; each region of the first common electrode corresponds to at least one row of pixel units; and all regions of the first common electrode are insulated to each other and serve as the touch signal input electrode. According to the touch screen disclosed by the invention, the common electrode is divided into the plurality of regions along the direction of the data lines, and the regions serve as the touch signal input electrode. According to the invention, the reduction of a pixel voltage is offset by voltage disturbance produced when the common electrode is used as a driving electrode so that the disturbance influence caused by the scanning of the common electrode is reduced and the quality of displayed pictures is increased.

Description

technical field [0001] The invention relates to the field of touch screens, in particular to a touch screen and a driving method thereof. Background technique [0002] As an input medium, a touch panel (TP) is integrated with a display screen as a touch screen, and the touch screen plays an important role in the display field. [0003] Among them, the capacitive touch screen has attracted much attention because of its high sensitivity. The mutual capacitive touch screen is favored by people because of its high sensitivity and advantages of multi-touch. Capacitive touch screens include: external touch screens and built-in touch screens. Embedded touch screen refers to a touch screen that integrates TP into a liquid crystal display panel (Liquid Crystal Display, LCD). Embedded touch screen has become a research hotspot because of its low production cost, good light transmittance, thin module thickness and other reasons. [0004] The following briefly introduces the basic w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044
CPCG06F3/0412G06F3/04184G06F3/0443G06F2203/04107G06F3/044
Inventor 赵家阳
Owner BOE TECH GRP CO LTD
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