COLOR FILM SUBSTRATE, METHOD FOR FABRICATING THE SAME TOUCH DISPLAY DEVICE

• US 20160252766A1
• Filed: 12/01/2014
• Published: 09/01/2016
• Est. Priority Date: 09/03/2014
• Status: Abandoned Application

• Current Assignee: BOE Technology Group Co., Ltd., Hefei Xinsheng Optoelectronics Technology Company Limited (BOE Technology Group Co., Ltd.)
• Original Assignee: BOE Technology Group Co., Ltd., Hefei Xinsheng Optoelectronics Technology Company Limited (BOE Technology Group Co., Ltd.)
• Inventors: Liu, Guodong, Hu, Ming
• Application Number:
  US14/767,631
• Publication Number:
  US 20160252766A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G02F 1/13306 Circuit arrangements or driving methods for the control of single liquid crystal cells G02F1/132, G02F1/133382 take precedence
• CPC Class Codes: G02F 1/1333 Constructional arrangements; Manufacturing methodsG02F1/135, G02F1/136 take precedence
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G02F 1/1335 Structural association of cells with optical devices, e.g. polarisers or reflectors
• CPC Class Codes: G02F 1/133512 Light shielding layers, e.g. black matrix G02F1/136209 takes precedence
• CPC Class Codes: G02F 1/133514 Colour filters
• CPC Class Codes: G02F 1/133516 Methods for their manufacture, e.g. printing, electro-deposition or photolithography
• CPC Class Codes: G02F 1/133528 Polarisers
• CPC Class Codes: G02F 1/136286 Wiring, e.g. gate line, drain line
• 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 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes

Abstract

The present invention provides a color film substrate, comprising a base plate and a black matrix on the base plate, wherein the black matrix comprises a plurality of first black matrix strips in a first direction and a plurality of second black matrix strips in a second direction, the first direction is perpendicular to the second direction, and at least one of the first black matrix strips are conductive to act as sense lines or drive lines during touching. The color film substrate can be fabricated by a process which is simple and has high yield. The present invention further provides a method for fabricating the color film substrate and a touch display device comprising the color film substrate.

Claims

1. A color film substrate, comprising:

a base plate; and

a black matrix on the base plate, wherein the black matrix comprises a plurality of first black matrix strips in a first direction and a plurality of second black matrix strips in a second direction, the first direction is perpendicular to the second direction, and at least one of the first black matrix strips are conductive to act as sense lines or drive lines during touching.

2. The color film substrate of claim 1, wherein the conductive first black matrix strips are made from a metallic material.

3. The color film substrate of claim 1, wherein two neighboring conductive first black matrix strips are separated by non-conductive first black matrix strips of an equal number.

4. The color film substrate of claim 1, wherein the conductive first black matrix strips are divided into a plurality of groups, each group comprises a plurality of the conductive first black matrix strips, the conductive first black matrix strips in each group are of an equal number, and two neighboring groups of the conductive first black matrix strips are separated by non-conductive first black matrix strips of an equal number.

5. A method for fabricating a color film substrate, comprising:

forming a black matrix on a base plate, wherein the black matrix comprises a plurality of first black matrix strips in a first direction and a plurality of second black matrix strips in a second direction, the first direction is perpendicular to the second direction, and at least one of the first black matrix strips are conductive to act as sense lines or drive lines during touching.

6. The method of claim 5, wherein the step of forming the black matrix on the base plate comprises:

forming the conductive first black matrix strips on the base plate; and

forming a first and second black matrix strip which are non-conductive on the base plate.

7. The method of claim 6, wherein the non-conductive first and second black matrix strip are formed prior to forming the conductive first black matrix strips on the base plate.

8. The method of claim 6, wherein forming the non-conductive first and second black matrix strip is done at the same time as forming the conductive first black matrix strips.

9. The method of claim 6, wherein forming the non-conductive first and second black matrix strip is done forming the conductive first black matrix strips.

10. A touch display device, comprising:

the a color film substrate comprising;

a base plate; and

a black matrix on the base plate, wherein the black matrix comprises a plurality of first black matrix strips in a first direction and a plurality of second black matrix strips in a second direction, the first direction is perpendicular to the second direction, and at least one of the first black matrix strips are conductive to act as sense lines or drive lines during touching; and

an array substrate which is arranged opposite to the color film substrate, wherein the array substrate comprises a plurality of data lines and a plurality of gate lines.

11. The touch display device of claim 10, wherein when the conductive first black matrix strips act as sense lines during touching, at least one of the gate lines act as drive lines.

12. The touch display device of claim 10, wherein when the conductive first black matrix strips act as drive lines during touching, at least one of the gate lines or at least one of the data lines act as sense lines.