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Display device with touch function

A technology for display devices and touch functions, applied in the input/output process of data processing, instruments, electrical digital data processing, etc.

Active Publication Date: 2014-07-23
HANNSTAR DISPLAY CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In other words, based on the combination of the display panel and the touch panel, the touch display panel has its development limit in both thickness and cost.

Method used

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  • Display device with touch function
  • Display device with touch function
  • Display device with touch function

Examples

Experimental program
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Embodiment Construction

[0039] The embodiment of the present invention proposes a display device with a touch function, which can realize the touch sensing mechanism by sensing the change of the capacitance value of the liquid crystal capacitor under the structure of the existing display panel, since no additional The touch electrodes can effectively save the cost of design and manufacture. In order to make the content of the present invention more comprehensible, the following specific examples are given as examples in which the present invention can indeed be implemented. In addition, wherever possible, elements / components / steps using the same reference numerals in the drawings and embodiments represent the same or similar parts.

[0040] figure 1 is a schematic circuit diagram of a display device according to an embodiment of the present invention. see figure 1 As shown, the display device 100 includes a display panel 110 , a display driving circuit 120 and a touch sensing circuit 130 . The di...

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PUM

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Abstract

The invention relates to a display device with the touch function. The display device comprises a display panel, a display drive circuit and a touch sensing circuit. The display panel comprises a plurality of pixels arranged in an array, and each pixel comprises a liquid crystal capacitor; the display drive circuit is connected with the display panel in a coupled mode and used for driving the pixels during the display period within a picture frame period so that pictures can be displayed in the display panel; the touch sensing circuit is connected with the display panel in a coupled mode and used for sensing changes of capacitance values of the liquid crystal capacitors during the blank period within the picture frame period and accordingly generating touch information.

Description

technical field [0001] The present invention relates to a display device, in particular to a display device with a touch function. Background technique [0002] In practice, the display device with touch function is completed by the touch system and the display system as independent systems. System integration and cost reduction are the constant directions of the electronics industry. With the advancement of technology, the touch panel has been successfully integrated with the display panel, so that the user can directly instruct the electronic device to perform the desired work through touch. [0003] A general touch display panel includes a plurality of pixels and a plurality of sensing units, wherein the pixels are arranged in a two-dimensional array to form a display panel, and the sensing units can be built in the display panel or externally attached to the display panel. The touch electrodes on the display panel are formed to form a touch panel, so the touch display ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044
CPCG06F3/0412G06F3/04184G06F3/0443G06F3/0445
Inventor 蔡昆华李杏樱苏炳源林侑正
Owner HANNSTAR DISPLAY CORPORATION