DISPLAY APPARATUS AND MANUFACTURING METHOD THEREOF

• US 20170139513A1
• Filed: 07/11/2016
• Published: 05/18/2017
• Est. Priority Date: 11/17/2015
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: HONG, Jong Ho, CHOI, Won Il, LIM, Bek Hyun, JOO, Hye Jin
• Granted Patent: US 11,119,591 B2
• Time in Patent Office: Days
• CPC Class Codes: G02B 26/005 based on electrowetting
• CPC Class Codes: G02F 1/133305 Flexible substrates, e.g. plastics, organic film
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G02F 1/13394 spacers regularly patterned on the cell subtrate, e.g. walls, pillars G02F1/133377 takes precedence
• CPC Class Codes: G02F 1/13398 Spacer materials; Spacer properties
• CPC Class Codes: G02F 1/134336 Matrix
• CPC Class Codes: G02F 1/13439 characterised by their electrical, optical, physical properties; materials therefor; method of making
• CPC Class Codes: G02F 1/136286 Wiring, e.g. gate line, drain line
• CPC Class Codes: G02F 1/1368 in which the switching element is a three-electrode device G02F1/136277 takes precedence
• CPC Class Codes: G02F 2202/28 Adhesive materials or arrangements
• CPC Class Codes: G06F 2203/04102 Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 2203/04105 Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position
• CPC Class Codes: G06F 2203/04111 Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0416 Control or interface arrangements specially adapted for digitisers
• CPC Class Codes: G06F 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
• CPC Class Codes: G06F 3/0447 Position sensing using the local deformation of sensor cells
• CPC Class Codes: G06F 3/0448 : Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality
• CPC Class Codes: H10K 2102/311 : Flexible OLED
• CPC Class Codes: H10K 50/805 : Electrodes
• CPC Class Codes: H10K 50/813 : characterised by their shape
• CPC Class Codes: H10K 50/822 : characterised by their shape
• CPC Class Codes: H10K 59/131 : Interconnections, e.g. wiring lines or terminals
• CPC Class Codes: H10K 59/40 : OLEDs integrated with touch screens
• CPC Class Codes: H10K 59/805 : Electrodes
• CPC Class Codes: H10K 59/80515 : characterised by their shape
• CPC Class Codes: H10K 59/80521 : characterised by their shape
• 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 display apparatus includes a first substrate, a spacer provided on the first substrate, a second substrate on the spacer, a pixel provided on the second substrate and configured to display an image, a sensing part including a first electrode provided between the first substrate and the spacer and a second electrode provided between the spacer and the pixel.

Claims

1. A display apparatus, comprising:

a first substrate;

a spacer on the first substrate;

a second substrate on the spacer;

a pixel on the second substrate, and the pixel configured to display an image; and

a sensing part including a first electrode provided between the first substrate and the spacer and a second electrode provided between the spacer and the pixel.

2. The display apparatus of claim 1, wherein the second electrode is provided between the second substrate and the pixel.

3. The display apparatus of claim 1, wherein the second electrode is provided between the spacer and the second substrate.

4. The display apparatus of claim 1, wherein the second substrate includes a first sub-substrate and a second sub-substrate sequentially stacked, and the second electrode is provided between the first sub-substrate and the second sub-substrate.

5. The display apparatus of claim 1, wherein when viewed from a plane, the first electrode extends in a first direction, and the second electrode extends in a second direction crossing the first direction.

6. The display apparatus of claim 5, wherein the first electrode includes an edge having a zigzag shape.

7. The display apparatus of claim 6, wherein when viewed from the plane, the first electrode includes a body extending in the first direction and a plurality of protrusions protruded from the body to both sides in the second direction.

8. The display apparatus of claim 7, wherein the protrusions include first protrusions protruded from one side of the body and second protrusions protruded from another side of the body.

9. The display apparatus of claim 8, wherein each of the first protrusions includes a first side extended outwardly from the body and a second side extended from an end portion of the first side and connected to the body,

each of the second protrusions includes a third side extended outwardly from the body and a fourth side extended from an end portion of the third side and connected to the body, and

the first side and the third side are in parallel, and the second side and the fourth side are in parallel.

10. The display apparatus of claim 9, wherein the first side and the third side are parallel to the second direction.

11. The display apparatus of claim 9, wherein the first to fourth side are inclined against the first direction.

12. The display apparatus of claim 9, wherein the first and second sides are alternately arranged on one side of the body in the first direction, and the third and fourth sides are alternately arranged on the other side of the body in the first direction.

13. The display apparatus of claim 9, wherein when viewed from the plane, the first electrode includes cutting patterns extended from a point at which the first and second sides adjacent to each other meet the body to an inside of the body, or cutting patterns extended from a point at which the third and fourth sides adjacent to each other meet the body to the inside of the body.

14. The display apparatus of claim 13, wherein the cutting patterns include cutting patterns extended from one side of the body to the other side of the body and cutting patterns extended from the other side of the body to one side of the body, and cutting patterns extended from one side of the body to the other side of the body and cutting patterns extended from the other side of the body to one side of the body are alternately arranged in the first direction.

15. The display apparatus of claim 13, wherein when viewed from the plane, the first substrate includes a cutting portion provided between the first electrodes adjacent to each other.

16. The display apparatus of claim 15, wherein when viewed from the plane, the cutting portion is provided along the first to fourth sides.

17. The display apparatus of claim 16, wherein when viewed from the plane, the cutting portion extends to the inside of the body along the cutting patterns.

18. The display apparatus of claim 17, wherein an opening is provided in an end portion of the cutting portion extending to the inside of the body.

19. The display apparatus of claim 15, wherein when viewed from a cross section, the cutting portion is provided as a groove recessed into a surface of the first substrate.

20. The display apparatus of claim 15, wherein when viewed from a cross section, the cutting portion penetrates the first substrate.

21. The display apparatus of claim 5, wherein when viewed from the plane, the second electrode includes an edge having a zigzag shape.

22. The display apparatus of claim 21, wherein the second electrode includes a body extending in the second direction and a plurality of protrusions protruded from the body.

23. The display apparatus of claim 5, wherein the display apparatus includes a flexible area having flexibility and is foldable along a folding line.

24. The display apparatus of claim 23, wherein the folding line is parallel to the second direction.

25. The display apparatus of claim 1, wherein the sensing part senses at least one of a touch or a pressure from the outside.

26. The display apparatus of claim 25, wherein the sensing part senses at least one of the touch or the pressure in a direction from the first electrode to the second electrode.

27. The display apparatus of claim 25, wherein the sensing part senses at least one of the touch or the pressure in a direction from the second electrode to the first electrode.

28. The display apparatus of claim 1, further comprising an additional sensing part arranged in the pixel and sensing a touch.

29. The display apparatus of claim 1, wherein the first electrode is a driving electrode and the second electrode is a sensing electrode.

30. The display apparatus of claim 1, wherein the pixel is one of a liquid crystal device, an organic light emitting device, an electrophoretic device, and an electrowetting device.

31. A manufacturing method of a display apparatus, the manufacturing method comprising:

forming a first substrate in which a first electrode is formed;

forming a second substrate in which a second electrode is formed;

forming a pixel on one side of the second substrate; and

attaching the first substrate to the other side of the second substrate such that the first electrode and the second electrode are spaced apart from each other with a spacer interposed therebetween.