Color filter substrate and manufacturing method thereof, display device with touch function and driving method thereof

• US 9,201,535 B2
• Filed: 10/30/2013
• Issued: 12/01/2015
• Est. Priority Date: 10/31/2012
• Status: Active Grant

• Current Assignee: Beijing BOE Optoelectronics Technology Co Ltd. (BOE Technology Group Co., Ltd.)
• Original Assignee: Beijing BOE Optoelectronics Technology Co Ltd. (BOE Technology Group Co., Ltd.)
• Inventors: Wang, Haisheng, Wu, Junwei, Ding, Xiaoliang, Liu, Yingming
• Primary Examiner(s): Cheng, Joe H
• Application Number:
  US14/066,921
• Publication Number:
  US 20140118283A1
• Time in Patent Office: 762 Days
• US Class Current: 1/1
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0416 Control or interface arrangements specially adapted for digitisers
• CPC Class Codes: G06F 3/04184 Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes
• CPC Class Codes: G06F 3/0448 Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality

Abstract

Embodiments of the invention disclose a color filter substrate and a manufacturing method thereof, a display device with touch function and a driving method thereof. The color filter substrate comprises: a base substrate, a sense layer and a color filter layer disposed on the base substrate. The color filter layer includes a black matrix and a plurality of color filter patterns separated from each other by the black matrix. The sense layer and the color filter layer are disposed on a same side of the base substrate. The sense layer includes a plurality of sense regions, and a drive line and a sense line are provided side by side in a same layer in each of the sense regions.

Claims

1. A color filter substrate, comprising:

a base substrate, a sense layer and a color filter layer disposed on the base substrate, wherein

the color filter layer includes a black matrix and a plurality of color filter patterns separated from each other by the black matrix,

the sense layer and the color filter layer are disposed on a same side of the base substrate;

the sense layer includes a plurality of sense regions, and a drive line and a sense line are provided side by side in a same layer in each of the sense regions; and

the drive line and the sense line are arranged side by side in the sense region in a convolution manner or in a zigzag manner.

2. The color filter substrate according to claim 1, wherein

the sense layer is disposed on the base substrate, and the color filter layer is disposed on the sense layer.

3. The color filter substrate according to claim 1, wherein the drive line and the sense line are disposed at positions provided with the black matrix.

4. The color filter substrate according to claim 1, wherein both the drive line and the sense line are a metal wire or a transparent conductive wire.

5. The color filter substrate according to claim 1, wherein

both the drive line and the sense line include:

a metal wire, and a transparent electrode provided along the metal wire, and the transparent electrode is connected to the metal wire.

6. The color filter substrate according to claim 5, wherein

the transparent electrode is provided on the metal wire, or

the transparent electrode is provided under the metal wire.

7. The color filter substrate according to claim 6, wherein

the transparent electrode has a serrate edge;

and

the serrate edge of the transparent electrode of the drive line and the serrate edge of the transparent electrode of the sense line are complementary to each other.

8. The color filter substrate according to claim 1, further comprising:

a plurality of drive line leads and a plurality of sense line leads;

the drive lines of the sense regions in a same row are all connected to a same drive line lead, and the sense lines of the sense regions in a same column are all connected to a same sense line lead.

9. The color filter substrate according to claim 1, wherein the drive line has a plurality of first branches, the sense line has a plurality of second branches, and the first branches of the drive line and the second branches of the sense line are arranged in an interdigitated manner.

10. A display device with touch function, comprising:

a color filter substrate according to claim 1;

an array substrate, comprising a plurality of data lines, a plurality of gate lines, and a plurality of pixels defined by intersecting the plurality of data lines and the plurality of gate lines; and

a liquid crystal layer sandwiched between the color filter substrate and the array substrate.

11. A driving method of the display device with touch function according to claim 10, comprising:

stopping applying a drive signal to the drive line in a first period of a screen refresh cycle, and meanwhile sequentially outputting an ON signal from respective gate lines, so that the data lines sequentially apply a display data to respective pixels, wherein the screen refresh cycle is a period for displaying one frame of image and includes the first period and a second period;

applying the drive signal to the drive line in the second period of the screen refresh cycle, receiving a touch signal by the sense line, and meanwhile outputting an OFF signal from respective gate lines;

wherein the first period is set to 12.67 ms, and the second period is set to 4 ms.

12. The driving method according to claim 11, wherein the first period is longer than the second period.

13. The driving method according to claim 11, wherein the second period is far less than 0.1 s.