Curved Display Device

• US 20150162392A1
• Filed: 11/24/2014
• Published: 06/11/2015
• Est. Priority Date: 12/05/2013
• Status: Active Grant

• Current Assignee: LG Display Co., Ltd.
• Original Assignee: LG Display Co., Ltd.
• Inventors: Lim, YuSok, Cho, Sejun
• Granted Patent: US 9,525,012 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G02F 1/133305 Flexible substrates, e.g. plastics, organic film
• CPC Class Codes: H10K 2102/311 Flexible OLED
• CPC Class Codes: H10K 50/84 Passivation; Containers; Encapsulations
• CPC Class Codes: H10K 50/8426 Peripheral sealing arrangements, e.g. adhesives, sealants
• CPC Class Codes: H10K 50/844 Encapsulations
• CPC Class Codes: H10K 59/12 Active-matrix OLED [AMOLED] displays
• CPC Class Codes: H10K 59/1213 the pixel elements being TFTs
• CPC Class Codes: H10K 77/111 Flexible substrates
• CPC Class Codes: Y02E 10/549 Organic PV cells
• CPC Class Codes: Y02P 70/50 Manufacturing or production processes characterised by the final manufactured product

Abstract

A curved display device including a display area and a non-display area is provided. The curved display device includes a first direction area configured to maintain a flat state and a bending area connected to the first direction area. A thin film transistor (TFT) layer, a passivation layer, a sealing layer, and an upper film are provided on a base substrate in an area where the display area overlaps the bending area, and the sealing layer and the upper film extend to an area where the non-display area overlaps the bending area.

Claims

1. A curved display device including a display area and a non-display area, the curved display device comprising:

a first direction area configured to maintain a flat state; and

a bending area connected to the first direction area,

wherein a thin film transistor (TFT) layer, a passivation layer, a sealing layer, and an upper film are provided on a base substrate in an area where the display area overlaps the bending area, and

wherein the sealing layer and the upper film extend to an area where the non-display area overlaps the bending area.

2. The curved display device of claim 1, wherein the sealing layer and the upper film extend to an end of the non-display area.

3. The curved display device of claim 2, wherein a thickness of the area where the display area overlaps the bending area is equal to a thickness of the area where the non-display area overlaps the bending area.

4. The curved display device of claim 1, wherein the sealing layer and the upper film do not extend to an end of the non-display area.

5. The curved display device of claim 4, wherein a crack transfer preventing part is provided in the area where the non-display area overlaps the bending area.

6. The curved display device of claim 5, wherein a TFT layer and a passivation layer are further provided in the area where the non-display area overlaps the bending area, and

wherein the TFT layer and the passivation layer, which are provided in the area where the display area overlaps the bending area, are separated from the TFT layer and the passivation layer provided in the area where the non-display area overlaps the bending area, with the crack transfer preventing part therebetween.

7. The curved display device of claim 5, wherein one selected from the base substrate, the TFT layer, and the passivation layer is exposed to the crack transfer preventing part.

8. The curved display device of claim 5, wherein a metal layer is provided at the crack transfer preventing part.

9. The curved display device of claim 1, further comprising a second direction area connected to the bending area not to be parallel to the first direction area,

wherein the sealing layer and the upper film extend to an area where the non-display area overlaps the second direction area.

10. The curved display device of claim 1, wherein the first direction area comprises a first pixel configured to include a line and a TFT for displaying an image, and

wherein the bending area does not include a pixel for displaying an image, or comprises a second pixel including a configuration which differs from a configuration of the first pixel.