IP Library › Granted Patent US 12,029,070
Granted Patent B2
US 12,029,070 · App. 17/525,274 · Granted Jul 2, 2024

Organic light emitting display device

Inventors: Taihyeon Ha (Seoul, KR); DongKyun Lim (Seoul, KR)
Assignee: LG DISPLAY CO., LTD.
H10K59/00H04R1/08H10K77/111H04R2499/15H10K2102/311
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Quick Facts
Patent No.
US 12,029,070
App. No.
17/525,274
Granted
Jul 2, 2024
Kind
B2
Abstract

Provided is an organic light emitting display device. The organic light emitting display device includes a display area including a plurality of pixels and a non-display area enclosing the display area, the organic light emitting display device comprises an organic light emitting display panel including a plastic base member, a back plate which is disposed below the organic light emitting display panel and includes a polymer material, a support substrate which is disposed below the back plate and includes a hole formed so as to correspond to a part of the display area, and a microphone module below the support substrate. The microphone module includes a diaphragm which is disposed to overlap at least a part of the hole, a core which is disposed below the diaphragm and is formed of a magnet, and a coil which encloses around the core.

Claims (18)

1. An organic light emitting display device including a display area including a plurality of pixels and a non-display area enclosing the display area, the organic light emitting display device comprising:

an organic light emitting display panel including a plastic base member;

a back plate which is disposed below the organic light emitting display panel and includes a polymer material;

a support substrate which is disposed below the back plate and includes a hole formed so as to correspond to a part of the display area; and

a microphone module below the support substrate,

wherein the microphone module includes a diaphragm which is disposed to overlap at least a part of the hole, a core which is disposed below the diaphragm and is formed of a magnet, and a coil which encloses around the core.

2. The organic light emitting display device according to claim 1 , wherein the plastic base member and the back plate include polyimide.

3. The organic light emitting display device according to claim 1 , wherein a center of the diaphragm and a center of the hole match.

4. The organic light emitting display device according to claim 1 , wherein a size of the hole is smaller than a size of the diaphragm and the diaphragm is disposed to be spaced apart from the hole with a predetermined distance.

5. The organic light emitting display device according to claim 1 , wherein a size of the hole is larger than a size of the diaphragm and the diaphragm is disposed in the hole.

6. The organic light emitting display device according to claim 5 , wherein the diaphragm is disposed to be in direct contact with a lower surface of the back plate.

7. The organic light emitting display device according to claim 1 , further comprising:

a metal filler which is disposed in the hole and includes pores.

8. The organic light emitting display device according to claim 7 , wherein the metal filler is a metal structure including a pattern for forming pores.

9. The organic light emitting display device according to claim 8 , wherein the metal structure is formed of any one of a honeycomb pattern structure, a triangle pattern structure, and a truss structure, which are integrally formed with the support substrate.

10. The organic light emitting display device according to claim 7 , wherein the metal filler is a metal fiber which includes a metallic yarn or a metal fiber sheet.

11. The organic light emitting display device according to claim 1 , wherein the microphone module is a dynamic type.

12. The organic light emitting display device according to claim 1 , wherein the microphone module further includes a support unit which encloses and supports the core, the coil, and the diaphragm, and a foam pad disposed between the support substrate and the support unit in the vicinity of the hole.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 15, 2021
From: HA, TAIHYEON; LIM, DONGKYUN
To: LG DISPLAY CO., LTD.
Reel/Frame 058117/0356 →
Priority Claims (1)
KR 10-2020-0183201 · Dec 24, 2020 · national
Continuity (1)
Related Publication 20220208893A1 · Jun 30, 2022