Display device and method of manufacturing the same

• US 10,340,454 B2
• Filed: 07/28/2017
• Issued: 07/02/2019
• Est. Priority Date: 10/07/2016
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Yug, Geun Woo
• Primary Examiner(s): Nguyen, Viet Q
• Application Number:
  US15/662,729
• Publication Number:
  US 20180102480A1
• Time in Patent Office: 704 Days
• Field of Search: 257 59, 257 72
• CPC Class Codes: H01L 27/013 Thick-film circuits
• CPC Class Codes: H01L 27/1214 comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
• CPC Class Codes: H01L 27/1218 with a particular composition or structure of the substrate
• CPC Class Codes: H10K 2102/351 Thickness
• CPC Class Codes: H10K 50/84 Passivation; Containers; Encapsulations
• CPC Class Codes: H10K 50/844 Encapsulations
• CPC Class Codes: H10K 59/00 Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
• CPC Class Codes: H10K 59/12 Active-matrix OLED [AMOLED] displays
• CPC Class Codes: H10K 59/131 Interconnections, e.g. wiring lines or terminals
• CPC Class Codes: H10K 59/87 Passivation; Containers; Encapsulations
• CPC Class Codes: H10K 71/00 Manufacture or treatment specially adapted for the organic devices covered by this subclass
• CPC Class Codes: H10K 71/162 using laser ablation
• CPC Class Codes: H10K 71/851 Division of substrate

Abstract

A display device includes a display panel and a first protective substrate positioned under the display panel and including a first sub-region and a second sub-region positioned at a side of the first sub-region. A thickness of the first protective substrate in the first sub-region is greater than a thickness of the first protective substrate in the second sub-region.

Claims

1. A display device comprising:

a display panel; and

a first protective substrate positioned under the display panel and including a first sub-region and a second sub-region positioned at a first side of the first sub-region,

wherein a thickness of the first protective substrate in the first sub-region is greater than a thickness of the first protective substrate in the second sub-region,

wherein the first protective substrate further comprises;

a first cut surface positioned at the first side of the first sub-region; and

a second cut surface positioned at a side of the second sub-region, which is opposite to the first side of the first sub-region, and which is substantially parallel with the first cut surface, and

wherein a slope of the first cut surface is different from a slope of the second cut surface.

2. The display device of claim 1, wherein the slope of the first cut surface is smaller than the slope of the second cut surface.

3. The display device of claim 1, wherein the slope of the first cut surface and the slope of the second cut surface are less than 90 degrees with respect to a bottom surface of the first protective substrate.

4. The display device of claim 1, wherein a length of the first protective substrate in a direction along which the first and second sub-regions are arranged is longer than a length of the display panel in the direction.

6. The display device of claim 1, further comprising a first adhesive layer positioned between the first protective substrate and the display panel.

7. The display device of claim 1, wherein a difference between the thickness of the first protective substrate in the first sub-region and the thickness of the first protective substrate in the second sub-region is smaller than the thickness of the first protective substrate in the second sub-region.

5. A display device comprising:

a display panel; and

a first protective substrate positioned under the display panel and including a first sub-region and a second sub-region positioned at a first side of the first sub-region,

wherein a thickness of the first protective substrate in the first sub-region is greater than a thickness of the first protective substrate in the second sub-region, and

wherein a difference between the thickness of the first protective substrate in the first sub-region and the thickness of the first protective substrate in the second sub-region is smaller than a thickness of the display panel.