Method of manufacturing display device having inclined upper/lower surface and lateral surface connecting inclined upper/lower surfaces

• US 10,642,080 B2
• Filed: 06/20/2018
• Issued: 05/05/2020
• 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:
  US16/012,979
• Publication Number:
  US 20180299711A1
• Time in Patent Office: 685 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 method for manufacturing a display device, the method comprising:

preparing a first substrate including a first side surface defined by first and second patterned surfaces, and a second substrate which faces the first substrate; and

coupling the first and second substrates to each other to form the display device,

wherein preparing the first substrate comprises;

providing an initial state of the first substrate defining a top surface thereof, a bottom surface thereof facing the top surface, and connecting surfaces thereof connecting the top and bottom surfaces to each other,

forming at a first connecting surface, an upper patterned surface which is inclined from the top surface, the upper patterned surface including a second pattern of the second patterned surface, a length of the second pattern extended perpendicular to a length of the first connecting surface by perpendicularly polishing an upper end of the first connecting surface;

forming at the same first connecting surface, a lower patterned surface which is inclined from the bottom surface, the lower patterned surface including the second pattern of the second patterned surface by perpendicularly polishing a lower end of the first connecting surface; and

forming the first patterned surface of the first substrate which is extended from the bottom surface, by diagonally polishing the upper and lower patterned surfaces.

2. The method of claim 1, wherein the lower patterned surface is removed by the diagonal polishing to form the first patterned surface of the first substrate.

3. The method of claim 1, wherein the first patterned surface of the first substrate includes a first pattern of which a length thereof extends in a diagonal direction in a plan view of the first patterned surface, by the diagonal polishing.