Touch display device and touch position detection method and system thereof

A technology of touch display and detection method, which is applied in the direction of instrumentation, calculation, electrical digital data processing, etc., can solve the problems of high cost and complicated process, and achieve the effects of saving cost, improving the performance-to-noise ratio, and reducing the complexity of the process

Active Publication Date: 2013-09-18
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the touch display device in the prior art needs to make the touch panel pattern separately, which is costly and complicated.

Method used

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  • Touch display device and touch position detection method and system thereof
  • Touch display device and touch position detection method and system thereof
  • Touch display device and touch position detection method and system thereof

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Embodiment Construction

[0052] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0053] In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. By analogy, the present invention is therefore not limited to the specific examples disclosed below.

[0054] Secondly, the present in...

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Abstract

The invention discloses a touch display device and a touch position detection method and a touch position detection system thereof. The display device is used for displaying a static image; each pixel array of the display device comprises a plurality of pixel matrix units; and each pixel matrix unit comprises a plurality of pixels arranged in a matrix mode. The method comprises the following steps of: according to a scanning manner of a scanning line, carrying out time-sharing measurement on a current on a data line connected with each pixel in each pixel matrix unit and carrying out integration to obtain a total charging charge quantity Q of each pixel matrix unit; comparing the total charging charge quantity Q of each pixel matrix unit, which is obtained by the time-sharing measurement, with a prestored total charging charge quantity Q' of the pixel matrix unit when the touch operation is not carried out on the pixel matrix unit and if an absolute value of (Q/Q')-1 is greater than a preset threshold value P, judging that the touch action is generated at the position of the corresponding pixel matrix unit. Compared with the prior art, a pattern of a touch panel does not need to be separately made, so that cost is saved and process complexity is reduced.

Description

technical field [0001] The present invention relates to the technical field of touch display, in particular to a touch display device and a touch position detection method and system thereof. Background technique [0002] Touch display devices in the prior art include touch liquid crystal display devices, touch organic light-emitting display devices, and touch electronic paper, etc., and the way to realize the touch function is similar. It is called an "extra-mounted touch display device"); the touch panel can be a capacitive touch panel or a resistive touch panel. Specifically, an external touch liquid crystal display panel (Liquid crystal disLlay, LCD) is taken as an example, that is, a capacitive touch panel including a touch panel pattern is arranged above the color filter substrate of the liquid crystal display panel (such as an IPS or FFS liquid crystal display panel). (Capacitive Touch Panel, CTP), and then set the surface strengthened glass (Cover Lens) on the top o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
Inventor 吴勇马骏
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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