IP Library › Granted Patent US 10,514,790
Granted Patent B2
US 10,514,790 · App. 15/504,413 · Granted Dec 24, 2019

Display device and vehicle having the same

Inventors: Eugene Kim (Seoul, KR); Munchae Joung (Seoul, KR); Dongkuk Kim (Seoul, KR); Sunuk Kim (Seoul, KR); Hwan Kim (Seoul, KR)
Assignee: LG ELECTRONICS INC.
G06F3/0412G01N21/35G06F3/033G06F3/044G06F3/0416G06F3/0421G06F3/0488G06F2203/04101G06F2203/04106
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 10,514,790
App. No.
15/504,413
Granted
Dec 24, 2019
Kind
B2
Abstract

A display device including a touch window including an active area and an unactive area around the unactive area; a display unit disposed under the touch window; a bezel frame configured to support the display unit; and a light sensor unit disposed on a side of the bezel frame and at an angle to a top surface of the touch window under the unactive area of the touch window and including at least one light output unit configured to output light and at least one light receiving unit configured to receive light reflected from an input tool.

Claims (40)

1. A display device comprising:

a touch window including an active area and an unactive area around the active area;

a display unit disposed under the active area;

a bezel frame configured to support the display unit; and

a light sensor unit disposed on a side of the bezel frame and at an angle to a top surface of the touch window under the unactive area of the touch window and including at least one light output unit configured to output light and at least one light receiving unit configured to receive light reflected from an input tool,

wherein the light sensor unit further comprises a lens spreading light output from the at least one light output unit or collecting light reflected from the input tool into the at least one light receiving unit,

wherein the lens comprises:

an external surface facing the unactive area and being parallel to the top surface of the touch window; and

an internal surface facing the at least one light output unit and the at least one light receiving unit and having a concave shape,

wherein at least a part of the internal surface becomes closer to the external surface as the distance from the display unit increases, and

wherein the light sensor unit is at the angle to have a light output surface of the at least one light output unit face an upper portion of the active area.

2. The display device according to claim 1 , wherein the unactive area is disposed on all sides of the active area, and

wherein the light sensor unit is disposed under at least one side of the unactive area.

3. The display device according to claim 2 , wherein the active area is a breadthwise active area that is longer in a horizontal direction than in a vertical direction and a lateral direction corresponds to the horizontal direction, and

wherein the light sensor unit comprises a first light sensor unit disposed under a left unactive area and a second light sensor unit disposed under a right unactive area.

4. The display device according to claim 2 , wherein the active area is a breadthwise active area that is longer in a horizontal direction than in a vertical direction, a lateral direction corresponds to the horizontal direction and a longitudinal direction corresponds to the vertical direction, and

wherein the light sensor unit comprises a first light sensor unit disposed under an upper unactive area and a second light sensor unit disposed under a lower unactive area.

5. The display device according to claim 1 , further comprising:

a printed layer disposed on the unactive area and including a first hole in an area that overlaps the at least one light output unit and the at least one light receiving unit.

6. The display device according to claim 5 , wherein the light sensor unit further comprises a light sensor substrate supporting the at least one light receiving unit, and a noise reducing frame disposed on the light sensor substrate.

7. The display device according to claim 6 , wherein the noise reducing frame comprises a second hole in an area that overlaps the at least one light output unit and the at least one light receiving unit, and

wherein the lens is disposed at the second hole.

8. The display device according to claim 7 , wherein the noise reducing frame and the light sensor substrate form a square pillar shape and the lens covers the second hole of the noise reducing frame, and

wherein the at least one light output unit and the at least one light receiving unit are surrounded by the noise reducing frame, the light sensor substrate and the lens.

9. The display device according to claim 8 , further comprising:

air gaps formed between the at least one light output unit and the lens and between the at least one light receiving unit and the lens.

10. The display device according to claim 6 , further comprising:

a front casing supporting the noise reducing frame and the touch window,

wherein the front casing comprises a bumper portion disposed around the noise reducing frame.

11. The display device according to claim 1 , wherein the light sensor unit further comprises a light sensor substrate supporting the at least one light output unit and the at least one light receiving unit.

12. The display device according to claim 11 , wherein the bezel frame has a space under the unactive area,

wherein the light sensor unit is disposed in the space, and

wherein the bezel frame comprises a hole on an area that overlaps the at least one light output unit and the at least one light receiving unit.

13. The display device according to claim 12 , wherein the lens is disposed at the hole of the bezel frame.

14. The display device according to claim 13 , wherein the bezel frame and the light sensor substrate form a space under the unactive area, and

wherein the at least one light output unit and the at least one light receiving unit are surrounded by the bezel frame, the light sensor substrate and the lens.

15. The display device according to claim 14 , wherein the bezel frame further comprises a sidewall disposed between the light sensor unit and the display unit.

16. The display device according to claim 1 , wherein light that the at least one light output unit outputs is infrared light.

17. A vehicle comprising the display device according to claim 1 .

18. The vehicle according to claim 1 , wherein the unactive area is disposed on all sides of the active area.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 17, 2017
From: KIM, EUGENE; JOUNG, MUNCHAE; KIM, DONGKUK; KIM, SUNUK; KIM, HWAN
To: LG ELECTRONICS INC.
Reel/Frame 041288/0123 →
Priority Claims (1)
KR 10-2015-0170224 · Dec 1, 2015 · national
Continuity (1)
Related Publication 20170277323A1 · Sep 28, 2017
Cited By (1)
US 12,541,131