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Touch display device and drive method thereof

A touch display device and touch display technology, which are applied in the fields of instruments, computing, and electrical digital data processing, etc., can solve the problem of high touch signal detection frequency, increased internal noise of the touch display device, and influence on the touch display device. Display quality and other issues, to achieve the effect of improving display quality, prolonging touch detection time, and reducing sending frequency

Active Publication Date: 2014-08-20
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The existing time-sharing driving method leaves less detection time for touch signals, which makes the detection frequency of touch signals higher, which increases the internal noise of the touch display device and affects the touch display device. display quality of

Method used

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  • Touch display device and drive method thereof
  • Touch display device and drive method thereof
  • Touch display device and drive method thereof

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Embodiment Construction

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention belong to the protection scope of the present invention.

[0040] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by those skilled in the art to which the present invention belongs. "First", "second" and similar words used in the patent application specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguis...

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Abstract

The invention provides a touch display device and a drive method thereof. Each column in a touch drive electrode block matrix in a first substrate of the touch display device comprises a first touch drive electrode block and a second touch drive electrode block, first touch drive signals are sequentially transmitted to the first touch drive electrode blocks of corresponding matrix columns in the touch drive electrode block matrix in the first substrate during a display time period, grid lines corresponding to the first touch drive electrode blocks receiving the first touch drive signals are in a closed state, the grid lines corresponding to the first touch drive electrode blocks in the columns of the matrix are in the closed state, the grid lines corresponding to second touch drive electrode blocks in the column of the matrix are in an open state, and second touch drive signals are transmitted to the second touch drive electrode blocks at the time between adjacent display time periods. As display driving and touch monitoring are carried out synchronously, noise of the touch display device is lowered, and the display quality of the touch display device is improved.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a touch display device and a driving method thereof. Background technique [0002] As an input medium, a touch screen provides users with better convenience than a keyboard and a mouse. According to different implementation principles, the touch screen can be divided into resistive, capacitive, surface acoustic wave, infrared and so on. Currently, resistive and capacitive touch screen technologies are widely used. [0003] Mutual capacitive touch screen, with its high sensitivity and advantages of multi-touch, is becoming more and more popular. The basic principle of mutual capacitive touch screen is: apply voltage on the drive line side, and detect signal changes on the detection line side . The driving line determines the coordinates in the X direction, and the detection line determines the coordinates in the Y direction. During detection, the X-direction driving l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044
CPCG06F3/0412G06F3/04166G06F3/0443
Inventor 丁小梁董学王海生刘英明任涛
Owner BOE TECH GRP CO LTD
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