Display device comprising pressure sensor

Patent metadata

Field	Value
Publication number	US-11860667-B2
Application number	US-201817263705-A
Country	US
Kind code	B2
Filing date	Dec 20, 2018
Priority date	Jul 27, 2018
Publication date	Jan 2, 2024
Grant date	Jan 2, 2024

Abstract

A display device comprises: a display panel; a window; and a first pressure sensor. The display panel comprises: a planar portion; a first curved portion connected to one side of the planar portion; and a first side portion connected to one side of the first curved portion. The window is on the display panel. The first pressure sensor overlaps with the first side portion. Here, the first side portion is in a plane different from each of the planar portion and the first curved portion.

First claim

The invention claimed is:

1. A display device comprising:
a display panel including a planar portion, a first curved portion connected to one side of the planar portion, and a first side portion connected to one side of the first curved portion, the display panel further including a first surface and a second surface opposite to the first surface;
a window on the first surface of the display panel;
a first pressure sensor overlapping the first side portion in a direction perpendicular to the first surface of the first side portion of the display panel,
wherein the first side portion is non-coplanar with each of the planar portion and the first curved portion,
a cover panel below the second surface of the display panel and overlapping the planar portion and the first curved portion,
wherein the first pressure sensor is below the second surface of the display panel,
wherein the first pressure sensor overlaps the display panel in a direction perpendicular to the first surface of the planar portion of the display panel, and
wherein the first pressure sensor is spaced apart from the cover panel.

2. The display device of claim 1 , wherein the first side portion protrudes from the one side of the first curved portion in a first direction, and a protruding length of the first side portion is greater than or equal to 4 mm.

3. The display device of claim 2 , wherein a length of the first side portion in a second direction is smaller than a length of the planar portion in the second direction, and the second direction is perpendicular to the first direction.

4. The display device of claim 1 , wherein the window includes a first cover portion overlapping the first side portion of the display panel, and the first cover portion is larger than the first side portion.

5. The display device of claim 4 , further comprising a touch member between the display panel and the window,
wherein the touch member includes a first sensing portion overlapping the first side portion.

6. The display device of claim 4 , wherein:
the window further includes a light blocking member on a lower surface of the first cover portion; and
the first pressure sensor is coupled to the first cover portion of the window.

7. The display device of claim 4 , further comprising a bracket below the display panel,
wherein the window is coupled to the bracket through waterproof tape between a lower surface of the first cover portion and a side surface of the bracket.

8. The display device of claim 7 , wherein the bracket includes a tactile pattern formed on an outer surface adjacent to the first cover portion of the window.

9. The display device of claim 1 , further comprising a second pressure sensor,
wherein the display panel further includes a second curved portion connected to the other side different from the one side of the planar portion and a second side portion connected to one side of the second curved portion,
the second side portion is non-coplanar with each of the planar portion and the second curved portion of the display panel, and
the second pressure sensor overlaps the second side portion.

10. The display device of claim 9 , wherein the display device is configured to perform a squeezing operation in response to a pressure being simultaneously applied to the first pressure sensor and the second pressure sensor.

11. A display device comprising:
a display panel including a planar portion, a first curved portion connected to one side of the planar portion, and a first side portion connected to one side of the first curved portion, the display panel further including a first surface and a second surface opposite to the first surface;
a window on the first surface of the display panel;
a first pressure sensor overlapping the first side portion in a direction perpendicular to the first surface of the first side portion of the display panel,
wherein the first side portion is non-coplanar with each of the planar portion and the first curved portion,
wherein the window includes a first cover portion overlapping the first side portion of the display panel, and the first cover portion is larger than the first side portion, the display device further comprising a bracket below the display panel,
wherein the first pressure sensor overlaps the display panel in a direction perpendicular to the first surface of the planar portion of the display panel,
wherein the window is coupled to the bracket through waterproof tape between a side surface of the first cover portion and an upper surface of the bracket.

12. A display device comprising:
a display panel including a planar portion, a first curved portion connected to one side of the planar portion, and a first side surface connected to one side of the first curved portion;
a window on the display panel; and
a first pressure sensor overlapping the first side surface,
wherein the first side surface is non-coplanar with each of the planar portion and the first curved portion,
wherein the window includes a first cover portion overlapping the first side surface of the display panel, and the first cover portion is larger than the first side surface, the display device further comprising:
a touch member between the planar portion of the display panel and the window; and
an insulating member between the first side surface of the display panel and the first cover portion of the window,
wherein the touch member does not overlap the insulating member.

13. A display device comprising:
a display panel including a planar portion, a first curved portion connected to one side of the planar portion, and a first side portion connected to one side of the first curved portion, the display panel further including a first surface and a second surface opposite to the first surface;
a window on the first surface of the display panel; and
a first pressure sensor overlapping the first side portion of the display panel in a direction perpendicular to the first surface of the first side portion of the display panel,
wherein the first side portion is non-coplanar with each of the planar portion and the first curved portion, the display device further comprising a second pressure sensor overlapping a second side portion of the display panel,
wherein the second side portion is connected to the one side of the first curved portion of the display panel and separated from the first side portion,
wherein the display panel is disposed between the first pressure sensor and the window,
wherein any portion of the first pressure sensor does not overlap the planar portion of the display panel in a direction perpendicular to the first surface of the planar portion of the display panel, and
wherein the second pressure sensor has an area different from an area of the first pressure sensor.

14. The display device of claim 13 , further comprising a third pressure sensor,
wherein the display panel further includes a third curved portion connected to the other side different from the one side of the planar portion and a third side portion connected to one side of a second curved portion,
the third side portion is non-coplanar with each of the planar portion and the second curved portion of the display panel, and
the third pressure sensor overlaps the third side portion.

15. The display device of claim 14 , further comprising a fourth pressure sensor overlapping a fourth side portion of the display panel,
wherein the fourth side portion is connected to the one side of the second curved portion of the display panel and separated from the third side portion.

16. A display device comprising:

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Choon Hyop
• Lee Sang Chul
• Kim Ga Young
• Lee Kang Won
• Chung Seung Hwan
• Kim Do Ik

Classifications

• G06F3/04146 Primary

  using pressure sensitive conductive elements delivering a boolean signal and located between crossing sensing lines, e.g. located between X and Y sensing line layers · CPC title

• G06F3/04164 Primary

  Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads · CPC title

• G06F3/0414 Primary

  using force sensing means to determine a position · CPC title

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title

• G06F2203/04106

  Multi-sensing digitiser, i.e. digitiser using at least two different sensing technologies simultaneously or alternatively, e.g. for detecting pen and finger, for saving power or for improving position detection · CPC title