IP Library › Granted Patent US 12,566,347
Granted Patent B2
US 12,566,347 · App. 18/686,972 · Granted Mar 3, 2026

Lamp panel assembly and display device

Inventors: Mingtao Guo (Shenzhen, CN); Jun Yan (Shenzhen, CN)
Assignee: SEOUL SEMICONDUCTOR (SHENZHEN) CO., LTD
G02F1/133611G02F1/133603G02F1/133606
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 12,566,347
App. No.
18/686,972
Granted
Mar 3, 2026
Kind
B2
Abstract

A lamp panel assembly ( 10 ) and a display device ( 20 ). The lamp panel assembly ( 10 ) comprises: a substrate ( 100 ); one or more light-emitting elements ( 200 ) used for emitting light, the light-emitting elements ( 200 ) being disposed on the substrate ( 100 ); one or more light-transmissive members ( 300 ), the light-transmissive member ( 300 ) covering the light-emitting element ( 200 ), and the light-transmissive member ( 300 ) comprising a partially light-transmissive surface ( 301 ) located in front of the light-emitting element ( 200 ) and a completely light-transmissive surface ( 302 ) located on the side of the light-emitting element ( 200 ), wherein the partially light-transmissive surface ( 301 ) comprises a first inclined surface ( 311 ) and a second inclined surface ( 312 ) inclined relative to the light-emitting element ( 200 ), the inclination directions of the first inclined surface ( 311 ) and the second inclined surface ( 312 ) are different, a part of light emitted to the partially light-transmissive surface ( 301 ) by the light-emitting elements ( 200 ) is reflected, the other part is transmitted, and the reflected light is emitted through the completely light-transmissive surface ( 302 ). The light emission of the lamp panel assembly ( 10 ) may be more uniform.

Claims (48)

1 . A lamp panel assembly, comprising:

a substrate;

at least one light source, the at least one light source being disposed on the substrate; and

at least one light-transmissive material, the at least one light-transmissive material covering the at least one light source, and the at least one light-transmissive material including a first light-transmissive surface located in front of the at least one light source and a second light-transmissive surface located on a side of the at least one light source,

wherein the first light-transmissive surface includes a first inclined surface inclined relative to an upper surface of the at least one light source and a second inclined surface inclined relative to the upper surface of the at least one light source, a direction of inclination of the first inclined surface being different from a direction of inclination of the second inclined surface,

wherein the second light-transmissive surface includes a rounded surface, and

wherein the at least one light source is disposed in a non-central position of the at least one light transmissive material.

2 . The lamp panel assembly of claim 1 , wherein a first portion of light that is reflected by the first light-transmissive surface is greater than a second portion of light that is transmitted by the first light-transmissive surface.

3 . The lamp panel assembly of claim 2 , wherein an amount of light reflected from the first inclined surface decreases progressively from a position where the first and the second inclined surfaces are adjacent, towards a position where the first inclined surface and the second light-transmissive surface are adjacent, and

an amount of light reflected from the second inclined surface decreases progressively from a position where the first and second inclined surfaces are adjacent, towards a position where the second inclined surface and the second light-transmissive surface are adjacent.

4 . The lamp panel assembly of claim 2 , wherein a portion of the first light-transmissive surface where the first and second inclined surfaces touch, is recessed in a direction towards the light source, relative to a remainder of the first light-transmissive surface.

5 . The lamp panel assembly of claim 1 , wherein

the at least one light-transmissive material includes scattering particles, or

the at least one light-transmissive material includes fluorescent particles.

6 . The lamp panel assembly of claim 1 , wherein

the lamp panel assembly further includes a reflector disposed on the substrate, the reflector being positioned such that it does not contact the at least one light-transmissive material.

7 . A display device, comprising:

a display module including a display surface configured to display an image;

a lamp panel assembly disposed on a back surface of the display module opposite to the display surface; and

a circuit board disposed on the lamp panel assembly,

wherein the lamp panel assembly includes:

a substrate;

at least one light source, the at least one light source being disposed on the substrate; and

at least one light-transmissive material, the at least one light-transmissive material covering the at least one light source, and the at least one light-transmissive material including a first light-transmissive surface located in front of the at least one light source and a second light-transmissive surface located on a side of the at least one light source,

wherein the first light-transmissive surface includes a first inclined surface inclined relative to an upper surface of the at least one light source and a second inclined surface inclined relative to the upper surface of the at least one light source, a direction of inclination of the first inclined surface being different from a direction of inclination of the second inclined surface,

wherein the second light-transmissive surface includes a rounded surface, and

wherein the at least one light source is disposed in a non-central position of the at least one light transmissive material.

8 . The display device of claim 7 , wherein

the display device further includes a diffuser layer, and

the diffuser layer is disposed between the display module and the lamp panel assembly.

9 . The display device of claim 8 , wherein

the display device further includes an optical film, and

the optical film is disposed between the display module and the diffuser layer.

10 . The display device of claim 7 , wherein a first portion of light that is reflected by the first light-transmissive surface is greater than a second portion of light that is transmitted by the first light-transmissive surface.

11 . The display device of claim 10 , wherein a portion of the first light-transmissive surface where the first and second inclined surfaces touch, is recessed in a direction towards the light source, relative to a remainder of the first light-transmissive surface.

12 . The display device of claim 11 , wherein

the at least one light-transmissive material includes scattering particles, or

the at least one light-transmissive material includes fluorescent particles.

13 . The display device of claim 12 , wherein an amount of light reflected from the first inclined surface decreases progressively from a position where the first and the second inclined surfaces are adjacent, towards a position where the first inclined surface and the second light-transmissive surface are adjacent, and

an amount of light reflected from the second inclined surface decreases progressively from a position where the first and second inclined surfaces are adjacent, towards a position where the second inclined surface and the second light-transmissive surface are adjacent.

14 . The display device of claim 7 , wherein the lamp panel assembly further includes a reflector disposed on the substrate, the reflector being positioned such that it does not contact the at least one light-transmissive material.

15 . A lamp panel assembly, comprising:

a substrate;

at least one light source, the at least one light source being disposed on the substrate; and

at least one light-transmissive material, the at least one light-transmissive material covering the at least one light source, and the at least one light-transmissive material including a first light-transmissive surface located in front of the at least one light source and a second light-transmissive surface located on a side of the at least one light source,

wherein the first light-transmissive surface includes a first inclined surface inclined relative to an upper surface of the at least one light source and a second inclined surface inclined relative to the upper surface of the at least one light source, a direction of inclination of the first inclined surface being different from a direction of inclination of the second inclined surface,

wherein the second light-transmissive surface includes a rounded surface, and

wherein the at least one light source is disposed in a non-central position of the at least one light transmissive material.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 27, 2024
From: GUO, MINGTAO; YAN, JUN
To: SEOUL SEMICONDUCTOR (SHENZHEN) CO., LTD
Reel/Frame 066571/0807 →
Priority Claims (1)
CN 202111018631.2 · Sep 1, 2021 · national
Continuity (1)
Related Publication 20250189848A1 · Jun 12, 2025
References Cited (13)
US 20100201911A1 · Iiyama · 2010 [cited by examiner]
US 20140376219A1 · Ono · 2014 [cited by examiner]
US 20150219966A1 · Song · 2015 [cited by examiner]
US 20150268513A1 · Chang · 2015 [cited by examiner]
US 20150300594A1 · Lee · 2015 [cited by examiner]
US 20170075169A1 · Hayama · 2017 [cited by examiner]
CN 102893081A · 2013 [cited by applicant]
CN 103162192A · 2013 [cited by applicant]
CN 103890647A · 2014 [cited by applicant]
CN 104061526A · 2014 [cited by applicant]
CN 104101920A · 2014 [cited by applicant]
CN 104102044A · 2014 [cited by applicant]
International Search Report mailed on Nov. 28, 2022 in PCT/CN2022/116473 filed on Sep. 1, 2022 (2 pages). [cited by applicant]