Input-capable display device

• US 9,891,458 B2
• Filed: 06/09/2016
• Issued: 02/13/2018
• Est. Priority Date: 01/30/2007
• Status: Active Grant

• Current Assignee: Japan Display Incorporated
• Original Assignee: Japan Display Incorporated
• Inventors: Utsunomiya, Sumio, Koshihara, Takeshi, Ushiki, Takeyoshi, Fujikawa, Yoichi
• Primary Examiner(s): Moon, Seokyun
• Application Number:
  US15/177,840
• Publication Number:
  US 20160291371A1
• Time in Patent Office: 614 Days
• Field of Search: None
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• 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 1/133528 Polarisers
• CPC Class Codes: G02F 1/133784 by rubbing
• CPC Class Codes: G02F 1/134309 characterised by their geometrical arrangement
• CPC Class Codes: G02F 1/134345 Subdivided pixels, e.g. for grey scale or redundancy
• CPC Class Codes: G02F 1/134363 for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
• CPC Class Codes: G02F 1/13439 characterised by their electrical, optical, physical properties; materials therefor; method of making
• CPC Class Codes: G02F 1/136218 Shield electrodes
• CPC Class Codes: G02F 1/136286 Wiring, e.g. gate line, drain line
• CPC Class Codes: G02F 1/1368 in which the switching element is a three-electrode device G02F1/136277 takes precedence
• CPC Class Codes: G02F 2201/121 common or background
• CPC Class Codes: G02F 2201/123 pixel
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes

Abstract

An input-cable display device is provided including a first substrate on which a pair of electrodes that drive a liquid crystal layer are provided; a second substrate wherein the liquid crystal layer is formed within an inner surface of the second substrate between the first substrate and the second substrate; a detection electrode and a dielectric film that are laminated on an outer surface of the second substrate; a detector; a light shielding film; and a color filter layer, wherein the pair of electrodes provided on the first substrate comprises a pixel electrode and a common electrode, and the light shielding film and the color filter layer are laminated on the inner surface of the second substrate.

Claims

1. A display device comprising:

a first substrate including a pair of electrodes provided thereon, the pair of electrodes comprising a pixel electrode and a common electrode;

a second substrate opposed to the first substrate;

a liquid crystal layer provided between the first substrate and the second substrate;

a polarizer provided on an outer portion side of the second substrate, the outer portion side being opposite to a liquid crystal layer side of the second substrate;

a shield conductor provided between the polarizer and the liquid crystal layer;

a light shielding film; and

a color filter layer,

wherein an electric potential of the shield conductor is fixed, and

wherein the shield conductor, the light shielding film and the color filter layer are laminated on the liquid crystal layer side of the second substrate in order of the shield conductor, the light shielding film, and the color filter layer from the side of the second substrate toward the liquid crystal layer.

2. The display device according to claim 1, wherein the shield conductor has translucency.

3. The display device according to claim 1, wherein the pair of electrodes constitute a horizontal electric field mode structure.

4. The display device according to claim 1, wherein the pair of electrodes are arranged on different layers of the first substrate.

5. The display device according to claim 1, wherein the shield electrode has a sheet resistance of 1 kΩ

/sq or below.