Display device having a bottom substrate with patterned sidewall surfaces and manufacturing method thereof

• US 10,031,357 B2
• Filed: 09/02/2016
• Issued: 07/24/2018
• Est. Priority Date: 03/18/2016
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Park, Se Ki, Kim, Joo Young, Ko, Dong Rak, Kho, Young Woon, Kim, Dong Kwon, Park, June Hyoung, Seo, Eun Ji, Shin, Hee Kyun, Lee, Seung Je
• Primary Examiner(s): WOLDEGEORGIS, ERMIAS T
• Application Number:
  US15/255,223
• Publication Number:
  US 20170269399A1
• Time in Patent Office: 690 Days
• CPC Class Codes: G02F 1/1333 Constructional arrangements; Manufacturing methodsG02F1/135, G02F1/136 take precedence
• CPC Class Codes: G02F 1/133302 Rigid substrates, e.g. inorganic substrates
• CPC Class Codes: G02F 1/133514 Colour filters
• CPC Class Codes: G02F 1/1368 in which the switching element is a three-electrode device G02F1/136277 takes precedence
• CPC Class Codes: H10K 59/38 comprising colour filters or colour changing media [CCM]
• CPC Class Codes: H10K 71/00 Manufacture or treatment specially adapted for the organic devices covered by this subclass
• CPC Class Codes: H10K 77/10 Substrates, e.g. 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 display device includes a first substrate defining a top surface thereof, a bottom surface thereof facing the top surface, and side surfaces thereof connecting the top and bottom surfaces to each other. The side surfaces included: a first side surface defined by: a first patterned surface including a first pattern of which a length thereof extends in a diagonal direction in a plan view of the first patterned surface, and a second patterned surface which extends obliquely from an upper end of the first patterned surface, the second patterned surface including a second pattern of which a length thereof extends in a perpendicular direction from the upper end of the first patterned surface in a plan view of the second patterned surface.

Claims

1. A display device comprising:

a first substrate defining a top surface thereof, a bottom surface thereof facing the top surface, and side surfaces thereof connecting the top and bottom surfaces to each other, the side surfaces comprising;

a first side surface comprising;

a first patterned surface including a first pattern of which a length thereof extends in a diagonal direction in a plan view of the first patterned surface.

2. The display device of claim 1, wherein the side surfaces of the first substrate further comprise:

a second side surface which faces the first side surface and includes the first pattern of which the length thereof extends in a diagonal direction in a plan view of the second side surface.

3. The display device of claim 2, wherein the first substrate comprises a display region at which an image of the display device is displayed, and a non-display region disposed outside the display region and at which the image of the display device is not displayed.

4. The display device of claim 3, further comprising:

a second substrate which overlaps the display region of the first substrate and is disposed facing the first substrate.

5. The display device of claim 4, wherein

the second substrate defines a top surface thereof, a bottom surface thereof facing the top surface, and side walls thereof connecting the top and bottom surfaces to each other, the side walls comprising a first side wall, and a second side wall which faces the first side wall,

the first side wall of the second substrate is disposed at a same side of the display device as the first side surface of the first substrate and on an inner side of the first side surface in a plan view of the display device, and

the second side wall of the second substrate is disposed at a same side of the display device as the second side surface of the first substrate and is coplanar with the first side surface.

6. The display device of claim 5, wherein the second side wall of the second substrate and the second side surface of the first substrate coplanar with each other, each include the first pattern.

7. The display device of claim 4, wherein

in a top plan view of the display device, a portion of the top surface of the first substrate is exposed by the second substrate, and

the display device further comprises a pad provided in plurality disposed on the exposed portion of the top surface of the first substrate.

8. The display device of claim 4, further comprising:

a thin film transistor disposed on the first substrate, and

a color filter disposed on the second substrate.

9. The display device of claim 1, wherein the first side surface further comprises a second patterned surface which extends obliquely from an upper end of the first patterned surface, the second patterned surface including a second pattern of which a length thereof extends in a perpendicular direction from the upper end of the first patterned surface in a plan view of the second patterned surface.

10. The display device of claim 9, wherein the first pattern and the second pattern are an embossed pattern or an intaglio pattern.

11. The display device of claim 9, wherein the first patterned surface and the second patterned surface each comprise an overall uneven surface defined by the first pattern and the second pattern provided in plural, respectively.

12. The display device of claim 1, wherein

the first pattern is provided in plurality spaced apart from each other, and

each of the plurality of first patterns form a first angle with respect to the upper end of the first patterned surface.

13. The display device of claim 12, wherein the plurality of first patterns comprises with respect to the upper end of the first patterned surface:

a first inclined pattern of which a length thereof is extended in a left-to-right diagonal direction, and

a second inclined pattern of which a length thereof is extended in a right-to-left diagonal direction.

14. The display device of claim 12, wherein the first angle is 50 degrees or less.

15. The display device of claim 12, wherein distances between the plurality of the first patterns are identical to each other.

16. The display device of claim 12, wherein distances between the plurality of the first patterns are different from each other.

17. The display device of claim 1, wherein the first substrate is curved.

18. A display device comprising:

a first substrate defining a top surface thereof and a bottom surface thereof facing each other, and four side surfaces thereof surrounding outer circumferences of the top and bottom surfaces,

wherein

the four side surfaces comprise a first side surface and a second side which faces the first side surface,

the first side surface comprising;

a first patterned surface including a first pattern of which a length thereof extends in a diagonal direction in a plan view of the first patterned surface, and

a lower edge of the first patterned surface contacts the bottom surface.

19. The display device of claim 18, wherein the first side surface further comprises a second patterned surface which extends obliquely from an upper end of the first patterned surface, the second patterned surface including a second pattern of which a length thereof extends in a direction perpendicular to the upper end of the first patterned surface, and an upper edge of the second patterned surface contacts the top surface.