Touch Liquid Crystal Display Device, Liquid Crystal Display Panel And Upper Substrate

• US 20140055690A1
• Filed: 02/17/2013
• Published: 02/27/2014
• Est. Priority Date: 03/23/2012
• Status: Abandoned Application

• Current Assignee: BOE Technology Group Co., Ltd.
• Original Assignee: BOE Technology Group Co., Ltd.
• Inventors: Song, Youngsuk, Choi, Seungjin, Yoo, Seongyeol
• Application Number:
  US13/995,945
• Publication Number:
  US 20140055690A1
• Time in Patent Office: Days
• US Class Current: 349/12
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G02F 1/13394 spacers regularly patterned on the cell subtrate, e.g. walls, pillars G02F1/133377 takes precedence
• CPC Class Codes: G02F 1/136209 Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element
• CPC Class Codes: G02F 1/136222 Colour filters incorporated in the active matrix substrate
• CPC Class Codes: G02F 2201/40 Arrangements for improving the aperture ratio
• 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

Abstract

Disclosed are a touch liquid crystal display device, a liquid crystal display panel, and an upper substrate. The liquid crystal display panel comprises an upper substrate (10′) and an array substrate as a lower substrate (20′), the array substrate includes a thin film transistor (201′), a black matrix (204′), a color resin layer (205′), a pixel electrode (202′) and a spacer (30′), and the upper substrate (10′) includes a base substrate (102′), a touch sensor (101′) formed on one side of the base substrate and a common electrode (104′) formed on the other side of the base substrate. The upper substrate (10′) has a simplified structure, and therefore it is possible that production costs can be decreased, and the upper substrate can be avoided from being damages during manufacture.

Claims

1. A touch liquid crystal display panel, comprising an upper substrate and an array substrate as a lower substrate, wherein

the array substrate includes a thin film transistor, a black matrix, a color resin layer, a pixel electrode and a spacer;

and

the upper substrate includes a base substrate, a touch sensing unit formed on one side of the base substrate and a common electrode formed on the other side of the base substrate.

2. The touch liquid crystal display panel of claim 1, wherein the upper substrate further includes a buffer layer formed between the base substrate and the common electrode.

3. The touch liquid crystal display panel of claim 2, wherein a material for the buffer layer is SiNx.

4. The touch liquid crystal display panel of claim 1, wherein a material for the base substrate of the upper substrate is plastic or glass.

5. The touch liquid crystal display panel of claim 1, wherein a size of the black matrix is the same as sizes of the thin film transistor, a gate line and a data line.

6. The touch liquid crystal display panel of claim 1, wherein a thickness of the color resin layer is in the range of 1-4 μ

m.

7. The touch liquid crystal display panel of claim 1, wherein the spacer is a ball-shaped spacer or a column-shaped spacer.

10. A touch liquid crystal display device, comprising the touch liquid crystal display panel of claim 1.

8. An upper substrate of a touch liquid crystal display panel, comprising:

a base substrate;

a touch sensor formed on one side of the base substrate; and

a common electrode formed on the other side of the base substrate, wherein on the other side of the base substrate, no black matrix and no color resin are included in the upper substrate.

9. The upper substrate of claim 8, further comprising a buffer layer, formed between the base substrate and the common electrode.