Display device and hand-held electronic device

• US 9,793,299 B2
• Filed: 02/17/2015
• Issued: 10/17/2017
• Est. Priority Date: 12/26/2005
• Status: Active Grant

• Current Assignee: Panasonic Intellectual Property Corporation of America (Panasonic Holdings Corporation)
• Original Assignee: Japan Display Incorporated, Panasonic Liquid Crystal Display Company Limited (Panasonic Holdings Corporation)
• Inventors: Fukuda, Koichi
• Primary Examiner(s): Vu, Phu
• Application Number:
  US14/624,339
• Publication Number:
  US 20150162353A1
• Time in Patent Office: 973 Days
• Field of Search: None
• CPC Class Codes: G02F 1/1333 Constructional arrangements; Manufacturing methodsG02F1/135, G02F1/136 take precedence
• CPC Class Codes: G02F 1/133528 Polarisers
• CPC Class Codes: G02F 1/1339 Gaskets; Spacers; Sealing of cells
• CPC Class Codes: G02F 2201/50 Protective arrangements

Abstract

An electronic device includes a liquid crystal display device having a first substrate, a second substrate bonded to the first substrate, with liquid crystal material held between the first substrate and the second substrate, and an upper polarizing plate affixed to the second substrate. A protective member is disposed over the upper polarizing plate, and an adhesive member is disposed between the protective member and the upper polarizing plate without an air layer between the protective member and the upper polarizing plate. The protective member is configured as a protective cover of the electronic device.

Claims

1. A display device comprising display area and used in a hand-held electronic device comprising;

a TFT substrate,

a counter substrate,

a multi-thin film layer,

a liquid crystal layer,

a seal member,

a polarizing plate,

an adhesive member, and

a protective member;

wherein the multi-thin film layer disposed on the TFT substrate,

wherein the liquid crystal layer disposed on the multi-thin film layer,

wherein the seal member surrounds the liquid crystal layer,

wherein the counter substrate is disposed between the TFT substrate and the polarizing plate,

wherein the polarizing plate is a separate member from the protective member and disposed between the counter substrate and the protective member,

wherein the adhesive member overlaps with the display area in a plan view, and is between the protective member and the polarizing plate, and

wherein the protective member is a protective cover of the hand-held electronic device,

wherein the protective member overlaps with the sealing member in a plan view, and

wherein a thickness of the protective member is at least 0.2 mm and no greater than 1.0 mm.

2. The display device according to claim 1, wherein a surface pencil hardness of the protective member is at least 3H.

3. The display device according to claim 1, wherein the counter substrate having a multi-thin film layer.

4. The display device according to claim 1, wherein the liquid crystal layer is sandwiched by the counter substrate and the TFT substrate.

5. The display device according to claim 1, wherein the multi-thin film layer includes plural insulating layers, conductive layer and organic layer.

15. The display device according to claim 1, wherein an edge of the protective member is disposed outside an edge of the polarizing plate in a plan view.

6. A display device used in a hand-held electronic device comprising;

a first substrate,

a multi-thin film layer,

a seal member,

a polarizing plate,

an adhesive member, and

a protective member;

wherein the multi-thin film layer disposed on the first substrate,

wherein the seal member is disposed inside an outer periphery end face of the first substrate,

wherein the polarizing plate is a separate member from the protective member and disposed between the first substrate and the protective member,

wherein the adhesive member overlaps with the display area in a plan view, and is between the protective member and the polarizing plate, and

wherein the protective member is a protective cover of the hand-held electronic device,

wherein the protective member overlaps with the sealing member in a plan view, and

wherein a thickness of the protective member is at least 0.2 mm and no greater than 1.0 mm.

7. The display device according to claim 6,

wherein a surface pencil hardness of the protective member is at least 3H.

8. The display device according to claim 6,

wherein a second substrate is disposed between the first substrate and polarizing plate.

9. The display device according to claim 6, wherein the second substrate having a multi-thin film layer.

10. The display device according to claim 6, wherein a liquid crystal layer is sandwiched between the first substrate and the second substrate.

11. The display device according to claim 6, wherein the multi-thin film layer includes plural insulating layers, conductive layer and organic layer.

16. The display device according to claim 6, wherein an edge of the protective member is disposed outside an edge of the polarizing plate in a plan view.

12. A display device used in a hand-held electronic device comprising;

a TFT substrate having a multi-thin film layer,

a resin film disposed over the TFT substrate,

a polarizing plate disposed on the resin film,

a protective member disposed on the polarizing plate, and

an adhesive member disposed between the polarizing plate and the protective member,

wherein the polarizing plate is a separate member from the protective member and the resin film,

wherein the adhesive member is disposed between the protective member and the polarizing member, and

wherein the protective member is a protective cover of the hand-held electronic device, and

wherein an edge of the protective member is disposed outside an edge of the resin film and an edge of the polarizing plate in a plan view.

13. The display device according to claim 12,

wherein a surface pencil hardness of the protective member is at least 3H.

14. The display device according to claim 12,

wherein a thickness of the protective member is at least 0.2 mm and no greater than 1.0 mm.