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Display apparatus and display panel drive method thereof

A technology of a display panel and a driving method, which is applied to static indicators, nonlinear optics, instruments, etc., can solve the problems of uneven sensing sensitivity of embedded input panels, decreased sensing sensitivity of embedded input panels, and influence on identification accuracy.

Inactive Publication Date: 2009-06-10
HANNSTAR DISPLAY CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the process of raising the level again, if there is another touch, as shown by the mark 406 or 408, due to the sensing signal level V ROUT It has not yet returned to the normal state, which affects the recognition accuracy when the first few gate lines of the next screen are turned on, resulting in a decrease in the sensitivity of the uppermost part of the embedded input panel
As a result, the embedded input panel has uneven sensing sensitivity

Method used

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  • Display apparatus and display panel drive method thereof
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  • Display apparatus and display panel drive method thereof

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Embodiment Construction

[0047] FIG. 5 is a schematic diagram of a display device and a driving method of the display panel thereof according to an embodiment of the present invention. Please refer to FIG. 5 , where 500 is a display device. The display device 500 includes a display panel 502 , a source driver 504 , a signal processing circuit 506 and a gate driver 508 . The display panel 502 also includes a sensing circuit 510, a gate line G 1 ~G N And the sensing signal reading line R 1 ~R M . As for marking SG 1 ~SG N Then the gate line driver 508 corresponds to the gate line G 1 ~G N The output gate line signal, marked 512 represents the gate pulse, and T B Indicates the blank period between two screens. In order to facilitate comparison with the prior art, in this embodiment and the following embodiments, the display panel is an embedded input panel, and the sensing circuit includes a charge-type sensing circuit (as shown in FIG. 2 ) or a current-type sensing circuit (as shown in FIG. 2 ...

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Abstract

The present invention provides a display device and a driving method of the display panel. The display panel is provided with an induction signal reading line and N grid lines, wherein N is a natural number. The induction signal reading line is coupled with a plurality of induction circuits. Each induction circuit is coupled with one grid line in the grid lines, and furthermore the N-th grid line is coupled to one induction circuit in the induction circuits. The driving method of the invention comprises the following steps: firstly, sequentially driving the grid lines, and opening the corresponding induction circuits through the grid lines; and afterwards, bestriding the driving time of grid impulse of N-th grid line to the interregnum between two pictures.

Description

technical field [0001] The present invention relates to a display device and a driving method for a display panel thereof, and in particular to a display device with relatively uniform sensing sensitivity and a driving method for a display panel thereof. Background technique [0002] Among various input panel products, generally the input panel with additional sensing film will not only increase the extra cost, but also reduce the penetration by about 20%. The embedded input panel uses the characteristics of amorphous silicon (Amorphous-Si) to design a sensing circuit capable of sensing touch, and integrates the sensing circuit into a thin film transistor-liquid crystal display (TFT-LCD for short) in the thin film transistor array process. In contrast, the embedded input panel has low cost and better optical characteristics, so it gradually replaces the input panel with external sensing film. [0003] In the design of the embedded input panel, since the sensing circuit is ...

Claims

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Application Information

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IPC IPC(8): G02F1/1362G02F1/133G09G3/36
Inventor 潘轩霖郑建勇
Owner HANNSTAR DISPLAY CORPORATION