IP Library › Granted Patent US 12,429,725
Granted Patent B2
US 12,429,725 · App. 17/290,697 · Granted Sep 30, 2025

Display device

Inventor: Peng Zhang (Wuhan, CN)
Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
G02F1/133509G02F1/13338G02F1/133615
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 12,429,725
App. No.
17/290,697
Granted
Sep 30, 2025
Kind
B2
Abstract

The display device includes a display panel, a backlight module, and a light-blocking member. The backlight module is formed with a through hole penetrating the backlight module, and the light-blocking member includes a channel corresponding to the through hole. The light-blocking member can isolate other components of the backlight module from the channel to prevent light in the backlight module from being irradiated into the channel, thereby solving the problem that the light leaks easily into the through hole of the backlight module in an existing under-screen camera display devices.

Claims (37)

1. A display device, comprising:

a display panel;

a backlight module disposed on a back side of the display panel, wherein the backlight module is formed with a through hole penetrating the backlight module;

a light-blocking member at least partially disposed in the through hole, wherein the light-blocking member comprises a channel corresponding to the through hole, and

a light-shielding rod, wherein the light-shielding rod is at least partially disposed in the channel, wherein the light-shielding rod comprises a transparent rod body, and a light-shielding coating is disposed on a side of the rod body opposite to the channel, and

wherein the display panel comprises a display region, the display region comprises an ambient light-transmission region for acquiring ambient light, and the through hole is disposed coaxially with the ambient light-transmission region.

2. The display device according to claim 1 , wherein the light-blocking member further comprises:

a first light-blocking portion with a hollow cylindrical structure, wherein the first light-blocking portion is at least partially disposed in the through hole; and

a second light-blocking portion formed by extending an end of the first light-blocking portion away from the display panel to an outside periphery of the first light-blocking portion, wherein the second light-blocking portion is fixed on a side of the backlight module away from the display panel.

3. The display device according to claim 2 , wherein an end of the first light-blocking portion close to the display panel protrudes from the through hole.

4. The display device according to claim 3 , wherein the end of the first light-blocking portion close to the display panel is bonded to a bottom of the display panel by a light-shielding adhesive.

5. The display device according to claim 4 , wherein the channel is sleeved in the through hole.

6. The display device according to claim 1 , wherein a planar shape of the through hole on a plane perpendicular to an axial direction of the through hole is any one of circular, elliptical, rectangular, drop-shaped, or irregular-shaped, and a planar shape of the channel is the same as the planar shape of the through hole.

7. The display device according to claim 1 , wherein the light-blocking member is made of metal.

8. The display device according to claim 7 , wherein a thickness of a sidewall of the light-blocking member opposite to the through hole is less than or equal to 0.1 millimeter.

9. The display device according to claim 1 ,

wherein an end of the light-shielding rod opposite to the display panel is bonded to the display panel through a transparent adhesive layer.

10. The display device according to claim 9 , wherein a thickness of the transparent adhesive layer is less than or equal to 0.1 millimeter.

11. The display device according to claim 9 , wherein an orthographic projection region of the transparent adhesive layer covers an orthographic projection region of the end of the light-shielding rod opposite to the display panel in an axial direction parallel to the through hole.

12. The display device according to claim 1 , wherein the display panel further comprises an array substrate, a color film substrate disposed opposite to the array substrate, and a liquid crystal layer disposed between the array substrate and the color film substrate.

13. The display device according to claim 1 , further comprising a sensor module, wherein the sensor module is disposed in a one-to-one correspondence in position with the channel, and the sensor module is configured to collect the ambient light through the channel and the ambient light-transmission region.

14. The display device according to claim 13 , wherein the sensor module is at least one or a combination of a camera module, a fingerprint recognition sensor module, a structured light sensor module, a distance sensor module, a light sensor module, and a time-of-flight sensor module.

15. A display device, comprising:

a display panel;

a backlight module disposed on a back side of the display panel, wherein the backlight module is formed with a through hole penetrating the backlight module;

a light-blocking member at least partially disposed in the through hole, wherein the light-blocking member comprises a channel corresponding to the through hole; and

a light-shielding rod, wherein the light-shielding rod is at least partially disposed in the channel, wherein the light-shielding rod comprises a transparent rod body, and a light-shielding coating is disposed on a side of the rod body opposite to the channel.

16. A display device, comprising:

a display panel;

a backlight module disposed on a back side of the display panel, wherein the backlight module is formed with a through hole penetrating the backlight module; and

a light-blocking member at least partially disposed in the through hole, wherein the light-blocking member comprises a channel corresponding to the through hole,

wherein the light-blocking member further comprises:

a first light-blocking portion with a hollow cylindrical structure, wherein the first light-blocking portion is at least partially disposed in the through hole; and

a second light-blocking portion formed by extending an end of the first light-blocking portion away from the display panel to an outside periphery of the first light-blocking portion, wherein the second light-blocking portion is fixed on a side of the backlight module away from the display panel,

wherein a first light-absorbing layer is disposed on a side of the first light-blocking portion opposite to the through hole, wherein a light absorption rate of the first light-absorbing layer is greater than 0 and less than or equal to 70%.

17. The display device according to claim 16 , wherein a second light-absorbing layer is disposed on a side of the second light-blocking portion opposite to the backlight module, wherein a light absorption rate of the second light-absorbing layer is greater than 0 and less than or equal to 70%.

18. The display device according to claim 17 , wherein the light absorption rate of the first light-absorbing layer is less than or equal to the light absorption rate of the second light-absorbing layer.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 7, 2021
From: ZHANG, PENG
To: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
Reel/Frame 056460/0898 →
Priority Claims (1)
CN 202110311354.8 · Mar 24, 2021 · national
Continuity (1)
Related Publication 20240126113A1 · Apr 18, 2024
References Cited (14)
US 7626675B2 · Li · 2009 [cited by examiner]
US 10534221B1 · Zhu · 2020 [cited by examiner]
US 10788695B2 · Cheng · 2020 [cited by examiner]
US 20090002563A1 · Barnhoefer et al. · 2009 [cited by applicant]
CN 108803144A · 2018 [cited by applicant]
CN 109637364A · 2019 [cited by applicant]
CN 110515237A · 2019 [cited by applicant]
CN 209911705U · 2020 [cited by applicant]
CN 110780485A · 2020 [cited by applicant]
CN 110865478A · 2020 [cited by applicant]
CN 111427195A · 2020 [cited by applicant]
CN 111708208A · 2020 [cited by applicant]
CN 212181213U · 2020 [cited by applicant]
WO 2019240331A1 · 2019 [cited by applicant]