IP Library › Granted Patent US 12700206
Granted Patent B1
US 12700206 · App. 19/235,592 · Granted Aug 4, 2026

Display device and automotive apparatus

Inventors: Ying-Ru Lu (Hsinchu City, TW); Pang-Hsuan Liu (Hsinchu City, TW); Yu-Tsung Huang (Hsinchu City, TW)
Assignee: AUO Corporation
G06V10/143B60Q3/00G02B6/0055G02F1/1336G02F2203/11G06V10/141G06V10/145
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Quick Facts
Patent No.
US 12700206
App. No.
19/235,592
Filed
Jun 12, 2025
Granted
Aug 4, 2026
Kind
B1
Art Unit
2875
USPC
362/606
Abstract

A display device including a display panel, a substrate, at least one illumination light emitter, an illumination light penetrable module and a first illumination light reflective layer is provided. The substrate is located on a light-emitting surface of the display panel. The illumination light emitter is configured to emit illumination light. The illumination light penetrable module includes a light guide layer, wherein the light guide layer is disposed on a plane defined by a first direction and a second direction. The illumination light may enter the light guide layer via at least one side of the light guide layer. The first illumination light reflective layer is disposed on the light guide layer along a stacking direction and in a peripheral region of the display device. The illumination light penetrates the light guide layer after being reflected by the first illumination light reflective layer. An automotive apparatus is also provided.

Claims (31)

1 . A display device, having a display region and a peripheral region surrounding the display region, the display device comprising:

a display panel, comprising a light-emitting surface, wherein the display panel is adapted to emit a display information from the light-emitting surface;

a substrate, located on the light-emitting surface of the display panel;

at least one illumination light emitter, configured to emit an illumination light;

an illumination light penetrable module, comprising a light guide layer, wherein the light guide layer is disposed on a plane defined by a first direction and a second direction, and the illumination light is adapted to enter the light guide layer via at least one side of the light guide layer; and

a first illumination light reflective layer, disposed on the light guide layer along a stacking direction and disposed in the peripheral region, wherein the illumination light penetrates the light guide layer after being reflected by the first illumination light reflective layer,

wherein the display information and the illumination light are both emitted from the substrate of the display device.

2 . The display device according to claim 1 , wherein the light guide layer is a part of the substrate.

3 . The display device according to claim 2 , wherein the at least one illumination light emitter comprises a plurality of illumination light emitters, the at least one side comprises a plurality of sides, the substrate has the plurality of sides, and the plurality of illumination light emitters respectively emit the illumination light toward the plurality of sides of the substrate.

4 . The display device according to claim 1 , wherein the illumination light penetrable module further comprises an optical layer, located between the light guide layer and the first illumination light reflective layer, wherein the optical layer has a transmittance of more than 90% for the illumination light.

5 . The display device according to claim 4 , wherein the optical layer is disposed on a same layer as a black ink layer of the display device in the stacking direction.

6 . The display device according to claim 1 , wherein the illumination light penetrates the substrate after penetrating the light guide layer.

7 . The display device according to claim 1 , wherein the illumination light penetrable module further comprises an optical layer, the light guide layer is located between the optical layer and the first illumination light reflective layer, and the optical layer has a transmittance of more than 90% for the illumination light.

8 . The display device according to claim 7 , wherein the optical layer is disposed on a same layer as a black ink layer of the display device in the stacking direction.

9 . The display device according to claim 4 , wherein the optical layer has a transmittance of less than 2% for a visible light.

10 . The display device according to claim 7 , wherein the optical layer has a transmittance of less than 2% for a visible light.

11 . The display device according to claim 1 , further comprising a second illumination light reflective layer, wherein the second illumination light reflective layer is located between the light guide layer and the display panel.

12 . The display device according to claim 1 , wherein the illumination light penetrable module further comprises a pattern layer, located between the light guide layer and the first illumination light reflective layer.

13 . The display device according to claim 1 , wherein the first illumination light reflective layer has a reflectance of more than 90% for the illumination light.

14 . The display device according to claim 1 , wherein the at least one illumination light emitter comprises a plurality of illumination light emitters, and the plurality of illumination light emitters have a different distance from the at least one side of the light guide layer.

15 . The display device according to claim 1 , wherein the at least one illumination light emitter is disposed on a side of the display device, and the side of the display device is configured to be bonded to a circuit board.

16 . The display device according to claim 1 , wherein a normal of a surface of the first illumination light reflective layer is not perpendicular to the first direction and the second direction.

17 . An automotive apparatus, comprising:

a display device, having a display region and a peripheral region surrounding the display region, the display device comprising:

a display panel, comprising a light-emitting surface, wherein the display panel is adapted to emit a display information from the light-emitting surface;

a substrate, located on the light-emitting surface of the display panel;

at least one illumination light emitter, configured to emit an illumination light;

an illumination light penetrable module, comprising a light guide layer, wherein the light guide layer is disposed on a plane defined by a first direction and a second direction, and the illumination light is adapted to enter the light guide layer via at least one side of the light guide layer; and

a first illumination light reflective layer, disposed on the light guide layer along a stacking direction and disposed in the peripheral region, wherein the illumination light penetrates the light guide layer after being reflected by the first illumination light reflective layer, wherein the display information and the illumination light are both emitted from the substrate of the display device; and

an optical sensor, configured to sense the illumination light.

18 . The automotive apparatus according to claim 17 , wherein the optical sensor is disposed in the display region of the display device.