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Display drive circuit, array substrate and touch display device

A display drive and circuit technology, applied in the field of array substrates, touch display devices, and display drive circuits, can solve the problems of narrow borders and increased wiring

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

AI Technical Summary

Problems solved by technology

The embedded touch screen uses the common electrode of the display screen as the driving electrode of the touch screen for time-sharing driving, while the traditional embedded capacitive touch screen is directly output by the driving IC because the wiring of the driving electrode is directly output. When the screen size is getting larger and larger, This leads to an increase in the number of driving electrodes, so that the wiring from the driving IC terminal will increase accordingly, making it more difficult to achieve narrow borders

Method used

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  • Display drive circuit, array substrate and touch display device
  • Display drive circuit, array substrate and touch display device
  • Display drive circuit, array substrate and touch display device

Examples

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Embodiment Construction

[0029] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0030] The display driving circuit of this embodiment, such as figure 1 with 2 As shown, it includes: touch signal terminal TSP_IN, first clock terminal CK, second clock terminal CKB, power supply terminal VGL, drive signal enable terminal TX_EN, drive electrode signal terminal TX, common electrode signal terminal VCOM and multiple cascaded Each sub-circuit includes: a logic unit 110 , a driving unit 120 and a transmission unit 130 . The logic unit 110 is connected to the touch signal terminal TSP_IN, the first clock terminal CK, the second clock terminal CKB, the power supply terminal VGL, the driving signal enable terminal TX_EN and the driving unit 120 . The driving ...

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PUM

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Abstract

The invention relates to the technical field of display, in particular to a display drive circuit which comprises a touch signal end, a first clock end, a second clock end, a power end, a drive signal enable end, a drive electrode signal end, a public electrode signal end and a plurality of cascaded sub circuits. Each sub circuit comprises a logic unit, a drive unit and a transmission unit. The logic units are connected with the touch signal end, the first clock end, the second clock end, the power end, the drive signal enable end and the drive units. The drive units are connected with the transmission units which are connected with the drive electrode signal end and the public electrode signal end. By means of the display drive circuit, common-electrode time-division multiplex access of an embedded type capacitance touch screen in a narrow-frame display device is achieved.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a display driving circuit, an array substrate and a touch display device. Background technique [0002] As mobile products such as mobile phones and tablets become thinner and more refined, the requirements for screen resolution are getting higher and higher, and the thickness of the screen is getting thinner and thinner. The traditional plug-in OGS (One Glass Solution ) The touch screen has been unable to meet the needs of the market due to the shortcomings of thicker modules, low optical transmittance, complex structure, and high production costs. The thin and light in-cell touch display with simple structure is becoming more and more the mainstream of market development. [0003] The pixel structure of a display screen with a traditional structure includes a common electrode and a pixel electrode, and a touch screen with a traditional structure includes an X-directio...

Claims

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Application Information

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IPC IPC(8): G09G3/20
CPCG06F3/0412G06F3/044G06F3/04184G06F1/06G06F3/0416G09G3/2092G09G2310/08G09G2330/00G06F3/04166
Inventor 樊君李成孙建
Owner BOE TECH GRP CO LTD
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