Organic light emitting diode display

• US 9,306,188 B2
• Filed: 05/29/2014
• Issued: 04/05/2016
• Est. Priority Date: 10/17/2013
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Kim, Min Seop, Kim, Hwan Jin
• Primary Examiner(s): Smoot, Stephen W
• Assistant Examiner(s): Chin, Edward
• Application Number:
  US14/290,966
• Publication Number:
  US 20150108439A1
• Time in Patent Office: 677 Days
• Field of Search: 257/100, 257/40, 257/414, 257/428, 257/437, 438/26, 438/99
• US Class Current: 1/1
• CPC Class Codes: H10K 2102/311 Flexible OLED
• CPC Class Codes: H10K 50/84 Passivation; Containers; Encapsulations
• CPC Class Codes: H10K 50/841 Self-supporting sealing arrangements
• CPC Class Codes: H10K 50/8445 multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers
• CPC Class Codes: H10K 59/126 Shielding, e.g. light-blocking means over the TFTs
• CPC Class Codes: H10K 59/40 OLEDs integrated with touch screens
• CPC Class Codes: H10K 59/8793 Arrangements for polarized light emission H10K59/8791 takes precedence
• CPC Class Codes: H10K 77/111 Flexible substrates

Abstract

An organic light emitting diode display having a flat region having a flat surface, and curved regions disposed at left and right sides of the flat region and formed in curved surfaces, having a display panel including a substrate, which maintains a flat surface in the flat region, and is formed in curved surfaces in the curved regions, and organic light emitting diodes disposed on the substrate, a window disposed in the flat region and the curved regions on the display panel, and a cover member disposed under the display panel, in which the cover member includes a flat cover member disposed in the flat region and curved cover members disposed in the curved regions, and the flat cover member and the curved cover member are formed of different materials or have different thicknesses.

Claims

1. An organic light emitting diode display having a flat region having a flat surface, and curved regions disposed at left and right sides of the flat region and formed in curved surfaces, comprising:

a display panel including a substrate having a flat surface in the flat region, and curved surfaces in the curved regions, and organic light emitting diodes disposed on the substrate;

a window disposed on a top side of the display panel, the window comprising a flat window surface on the flat surface of the display panel and curved window surfaces on the curved surfaces of the display panel; and

a cover member disposed on a bottom side of the display panel such that the display panel is disposed between the window and the cover member,

wherein the cover member includes a flat cover member disposed in the flat region and curved cover members disposed in the curved regions, and

wherein the flat cover member is formed from a first material having a first density and at least one of the curved cover members is formed from a second material having a second density less than the first density.

2. The organic light emitting diode display of claim 1, wherein at least one selected from the flat cover member and the curved cover members is formed of a cushion or a sponge.

3. The organic light emitting diode display of claim 1, wherein the flat cover member and the curved cover member are formed of different materials.

4. The organic light emitting diode display of claim 2, wherein the first density of the flat cover member is larger than the second density of the at least one of the curved cover members by about 3 times to about 10 times.

5. The organic light emitting diode display of claim 4, wherein the flat cover member and the curved cover members have the same thickness.

6. The organic light emitting diode display of claim 1, further comprising a touch panel disposed between the display panel and the window.

7. The organic light emitting diode display of claim 6, wherein the touch panel is disposed in the flat region and the curved regions.

8. The organic light emitting diode display of claim 1, wherein the curved regions extend from the flat region.

9. The organic light emitting diode display of claim 8, wherein the flat region and the curved regions are configured to display an image.

10. An organic light emitting diode display having a flat region having a flat surface, and curved regions disposed at left and right sides of the flat region and formed in curved surfaces, comprising:

a display panel including a substrate having a flat surface in the flat region, and curved surfaces in the curved regions, and organic light emitting diodes disposed on the substrate;

a window disposed on a top side of the display panel, the window comprising a flat window surface on the flat surface of the display panel and curved window surfaces on the curved surfaces of the display panel; and

a cover member disposed on a bottom side of the display panel such that the display panel is disposed between the window and the cover member,

wherein the cover member includes a flat cover member disposed in the flat region and curved cover members disposed in the curved regions, and

wherein the flat cover member has a first thickness measured along a direction normal to the flat cover member and each of the curved cover members has a second thickness larger than the first thickness measured along a direction normal to respective ones of the curved cover members.

11. The organic light emitting diode display of claim 10, wherein the second thickness of each of the curved cover members is larger than the first thickness of the flat cover member by about 1.5 times to about 3 times.

12. The organic light emitting diode display of claim 11, wherein the flat cover member and the curved cover member are formed of the same material.