Bendable Display apparatus and method of manufacturing the same

• US 20070030439A1
• Filed: 10/13/2006
• Published: 02/08/2007
• Est. Priority Date: 05/17/2002
• Status: Active Grant

• Current Assignee: Japan Display Central Incorporated (Japan Display Incorporated)
• Original Assignee: Hiroyuki Kurisu, Kenji Kawamata, Masaki Kinoshita, Satoru Yamanaka, Tatsuya Miyazaki, Yasushi Kawata
• Inventors: Miyazaki, Tatsuya, Kinoshita, Masaki, Yamanaka, Satoru, Kawamata, Kenji, Kurisu, Hiroyuki, Kawata, Yasushi
• Granted Patent: US 7,369,209 B2
• Time in Patent Office: Days
• US Class Current: 349/158
• CPC Class Codes: G02F 1/133305 Flexible substrates, e.g. plastics, organic film
• CPC Class Codes: G02F 1/133528 Polarisers
• CPC Class Codes: G02F 1/13356 characterised by the placement of the optical elements
• CPC Class Codes: G02F 1/13394 spacers regularly patterned on the cell subtrate, e.g. walls, pillars G02F1/133377 takes precedence
• CPC Class Codes: H10K 2102/311 Flexible OLED
• CPC Class Codes: H10K 2102/351 Thickness
• CPC Class Codes: H10K 50/841 Self-supporting sealing arrangements
• CPC Class Codes: H10K 50/86 Arrangements for improving contrast, e.g. preventing reflection of ambient light
• CPC Class Codes: H10K 59/12 Active-matrix OLED [AMOLED] displays

Abstract

A display apparatus with a plurality of display pixel sections includes glass substrate, which are formed to have a thickness that permits bending of the display apparatus, and polarizer plates, which are disposed on the glass substrates, respectively. The polarizer plates are thicker than the glass substrates.

Claims

1. A display apparatus, comprising:

a plurality of display pixel sections on a major surface of a substrate, wherein

the substrate has a glass substrate and a polarizer plate that is disposed to extend to an end part of the glass substrate on another major surface of the substrate, and has a thickness greater than a thickness of the glass substrate, and

the glass substrate has a thickness that permits bending of the display apparatus.

2. The display apparatus according to claim 1, wherein the thickness of the glass substrate is 0.15 mm or less.

3. The display apparatus according to claim 2, wherein the display apparatus is configured to be bendable with a radius of curvature of 200 mm or less.

4. The display apparatus according to claim 2, wherein the thickness of the polarizer plate is 0.5 mm or less.

5. The display apparatus according to claim 1, wherein

the display pixel section includes a switch element near an intersection of a signal line and a scan line that are disposed to be substantially perpendicular to each other on the glass substrate, and

the switch element is composed of a thin film transistor including a polysilicon film.

6. The display apparatus according to claim 5, wherein the display apparatus includes:

a signal line drive circuit on the glass substrate and configured to supply a drive signal to the signal line; and

a scan line drive circuit on the glass substrate and configured to supply a drive signal to the scan line.

7. The display apparatus according to claim 6, wherein the signal line drive circuit and the scan line drive circuit are each composed of thin film transistors including a polysilicon film.