Display device and method for fabricating the same

Patent metadata

Field	Value
Publication number	US-10673013-B2
Application number	US-201916522587-A
Country	US
Kind code	B2
Filing date	Jul 25, 2019
Priority date	Aug 10, 2018
Publication date	Jun 2, 2020
Grant date	Jun 2, 2020

Abstract

A display device includes a window and a display panel coupled to a bottom surface of the window. The display panel has a substantially regular tetragonal shape or a substantially rectangular shape in a plan view, and the window includes a base member and a bezel layer on a bottom surface of the base member. Between one and three light-transmissive main alignment marks and a transmission area having a different shape than that of the display panel are defined in the bezel layer, and each of the main alignment marks is arranged at a position corresponding to a vertex of the display panel or at a position corresponding to a vertex of an imaginary regular tetragon or of an imaginary rectangle that has the same center point as the display panel and that is larger than the display panel.

First claim

What is claimed is:

1. A display device comprising:
a window; and
a display panel coupled to a bottom surface of the window and having a substantially regular tetragonal shape or a substantially rectangular shape in a plan view,
wherein the window comprises:
a base member; and
a bezel layer on a bottom surface of the base member, between one and three light-transmissive main alignment marks and a transmission area having a different shape than that of the display panel being defined in the bezel layer,

wherein each of the main alignment marks is arranged at a position corresponding to a vertex of the display panel or at a position corresponding to a vertex of an imaginary regular tetragon or of an imaginary rectangle that has the same center point as the display panel and that is larger than the display panel.

2. The display device of claim 1 , wherein when two main alignment marks are defined in the bezel layer, the two main alignment marks are arranged at positions corresponding to two vertices corresponding to one side edge of the display panel.

3. The display device of claim 1 , wherein each of the main alignment marks overlaps the vertex of the display panel.

4. The display device of claim 1 , wherein the display panel has a display area in which a pixel is arranged and a non-display area in which no pixel is arranged, and
wherein the non-display area surrounds a periphery of the display area in a plan view.

5. The display device of claim 1 , further comprising a light-transmissive sub-alignment mark defined in the bezel layer, spaced from the main alignment marks, and having a different shape than that of the main alignment marks.

6. The display device of claim 5 , wherein the sub-alignment mark overlaps an edge of the display panel.

7. The display device of claim 1 , further comprising a light-transmissive test mark defined in the bezel layer and arranged outside of the display panel.

8. The display device of claim 1 , wherein a corner area of the display panel has a curved line shape in a plan view.

9. The display device of claim 1 , wherein the display device is installed in a vehicle.

10. The display device of claim 9 , wherein the transmission area is exposed from an interior material of the vehicle,
wherein the interior material of the vehicle covers a portion of the bezel layer, and
wherein the main alignment marks overlap the interior material of the vehicle.

11. A display device comprising:
a window; and
a display panel coupled to a bottom surface of the window and having:
a display area having a substantially regular tetragonal shape or a substantially rectangular shape in a plan view; and
a non-display area outside of the display area,

wherein the window comprises:
a base member; and
a bezel layer on a bottom surface of the base member, between one and three light-transmissive main alignment marks and a transmission area having a different shape than that of the display area being defined in the bezel layer, and

wherein each of the main alignment marks is arranged at a position corresponding to a vertex of an imaginary regular tetragon or an imaginary rectangle that has the same center point as the display area and is larger than the display area.

12. The display device of claim 11 , wherein the display panel has a different shape than that of the display area in a plan view.

13. The display device of claim 11 , wherein the display panel has a substantially regular tetragonal shape or a substantially rectangular shape in a plan view.

14. The display device of claim 13 , wherein each of the main alignment marks is arranged at a position corresponding to a vertex of the display panel.

15. A display device comprising:
a window; and
a display panel coupled to a bottom surface of the window and having a regular tetragonal shape with a curved corner area in a plan view or a rectangular shape with a curved corner area in a plan view,
wherein the window comprises:
a base member; and
a bezel layer on a bottom surface of the base member, between one and three light-transmissive main alignment marks and a transmission area having a different shape than that of the display panel being defined in the bezel layer,

wherein each of the main alignment marks is arranged at a position corresponding to a vertex of the display panel or at a position corresponding to a vertex of an imaginary regular tetragon or an imaginary rectangle that has the same center point as the display panel and that is larger than the display panel.

16. A display device comprising:
a window; and
a display panel coupled to a bottom surface of the window and having a substantially regular polygonal shape having n edges in a plan view,
wherein the window comprises:
a base member; and
a bezel layer on a bottom surface of the base member, a number of light-transmissive alignment marks and a transmission area having a different shape than that of the display panel being defined in the bezel layer,

wherein the number of the alignment marks is n-i, where “i” is a natural number equal to or greater than one and less than “n”, and
wherein each of the alignment marks is arranged at a position corresponding to a vertex of the display panel or at a position corresponding to a vertex of an imaginary polygon that has the same center point as the display panel and that is larger than the display panel.

17. A method for fabricating a display device, the method comprising:
preliminarily aligning a display panel with a window, the display panel having a substantially regular tetragonal shape or a substantially rectangular shape, the window having a transmission area having a different shape than that of the display panel, a non-transmission area adjacent to the transmission area, and a number of main alignment marks in the non-transmission area;
calculating positions of vertices of the display panel and a position of a center point of the display panel;
calculating positions of imaginary points on the window corresponding to at least some of the vertexes of the display panel and a position of an alignment center point of the window corresponding to the center point of the display panel by using numerical information of the display panel and the main alignment marks;
aligning the center point of the display panel with the alignment center point of the window such that the center point coincides with the alignment center point; and
coupling the window and the display panel to each other,
wherein the number of the main alignment marks is less than the number of the vertices of the display panel.

18. The method of claim 17 , wherein the window further comprises a sub-alignment mark spaced from the main alignment mark and arranged at a position corresponding to a vertex of an imaginary regular tetragon or an imaginary rectangle that has the same center point as the display panel and that is larger than the display panel, the method further comprising:
re-calculating the imaginary points and the alignment center point by using the sub-alignment mark when an error occurs between the center point and the alignment center point during the aligning of the center point with the alignment center point.

19. The method of claim 17 , wherein the window further comprises a test mark spaced from the main alignment mark, the method further comprising:
calculating a distance between the test mark and an edge of the display panel after the coupling of the window and the display panel.

20. The method of claim 17 , further com

Assignees

• Samsung Display Co Ltd

Inventors

• So Kyoungsub
• Park Jongdae

Classifications

• B32B2605/00

  Vehicles · CPC title

• B60R2300/20

  characterised by the type of display used · CPC title

• B60R1/00

  Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles · CPC title

• B60K35/00

  Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles · CPC title

• B32B41/00

  Arrangements for controlling or monitoring lamination processes; Safety arrangements · CPC title