INPUT-CAPABLE DISPLAY DEVICE

• US 20180143476A1
• Filed: 01/04/2018
• Published: 05/24/2018
• Est. Priority Date: 01/30/2007
• Status: Abandoned Application

• Current Assignee: Japan Display Incorporated
• Original Assignee: Japan Display Incorporated
• Inventors: UTSUNOMIYA, Sumio, KOSHIHARA, Takeshi, USHIKI, Takeyoshi, FUJIKAWA, Yoichi
• Application Number:
  US15/862,071
• Publication Number:
  US 20180143476A1
• Time in Patent Office: Days
• 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 second substrate, the outer portion side being opposite to a liquid crystal layer side of the second substrate;

a light shielding film having conductivity; and

a color filter layer,

wherein an electric potential of the light shielding film is fixed,

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

wherein the color filter layer covers the entire light shielding film.

2. The display device according to claim 1,

wherein the pair of electrodes constitute a horizontal electric field mode structure.

3. The display device according to claim 1,

wherein the pair of electrodes are arranged on different layers.

4. The display device according to claim 1,

wherein the light shielding film has a sheet resistance of 1 kΩ

/sq or below.

5. The display device according to claim 1,

wherein the light shielding film is arranged above a thin film transistor element that is used for switching the control of the pixel electrode.

6. The display device according to claim 1, further comprising

a detection electrode arranged between the polarizer and the second substrate.

7. The display device according to claim 1,

wherein the pixel electrode and the common electrode are translucent.

8. The display device according to claim 3,

wherein the pixel electrode is a reflective electrode.

9. 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 dielectric film 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 light shielding film having conductivity; and

a color filter layer,

wherein an electric potential of the light shielding film is fixed,

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

and

wherein the color filter layer covers the entire light shielding film.

10. The display device according to claim 9,

wherein the pair of electrodes constitute a horizontal electric field mode structure.

11. The display device according to claim 9,

wherein the pair of electrodes are arranged on different layers.

12. The display device according to claim 9,

wherein the light shielding film has a sheet resistance of 1 kΩ

/sq or below.

13. The display device according to claim 9,

wherein the light shielding film is arranged above a thin film transistor element that is used for switching the control of the pixel electrode.

14. The display device according to claim 9, further comprising

a detection electrode is arranged between the dielectric film and the second substrate.

15. The display device according to claim 9,

wherein the pixel electrode and the common electrode are translucent.

16. The display device according to claim 11,

wherein the pixel electrode is a reflective electrode.

17. A display device comprising:

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

a cover layer above the first substrate;

a polarizer provided on an outer portion side of the cover layer, the outer portion side being opposite to the base substrate side of the cover layer; and

a light shielding film having a conductivity arranged above a thin film transistor element that is used for switching the control of the pixel electrode, wherein an electric potential of the light shielding film is fixed, and wherein the pixel electrode is surrounded by the light shielding film.

18. The display device according to claim 17, further comprising

a detection electrode arranged between the polarizer and the cover layer.

19. The display device according to claim 17, further comprising

a display function layer provided between the pixel electrode and the common electrode.

20. The display device according to claim 19,

wherein a predetermined voltage for displaying an image is supplied between the pixel electrode and the common electrode.