Display apparatus

Patent metadata

Field	Value
Publication number	US-10896936-B2
Application number	US-201916454676-A
Country	US
Kind code	B2
Filing date	Jun 27, 2019
Priority date	Jul 26, 2018
Publication date	Jan 19, 2021
Grant date	Jan 19, 2021

Abstract

A display apparatus is provided. The display apparatus includes a display screen with two opposite surfaces, at least one of the two opposite surfaces is a display surface, a sounding structure is arranged at at least one side of the two opposite surfaces of the display screen, the sounding structure is configured to be deformed to sound under driving of sound signals, and the sound signals are electric signals applied to the sounding structure according to sounds to be made.

First claim

What is claimed is:

1. A display apparatus, comprising a display screen with two opposite surfaces, at least one of the two opposite surfaces being a display surface, wherein
a sounding structure is arranged on at least one side of the two opposite surfaces of the display screen, the sounding structure is configured to be deformed to sound under driving of sound signals, and the sound signals are electric signals applied to the sounding structure according to sounds to be made,
wherein the sounding structure comprises a first conductive part and a second conductive part which are provided opposite to each other; the second conductive part is provided at a side of the first conductive part distal to the display screen; the first conductive part and the second conductive part are separated from each other, and supported and connected by at least one insulator;
at least one of the first conductive part and the second conductive part is a flexible member;
the sound signals are applied to the first conductive part of the second conductive part; and
the display apparatus further includes an outer frame which encloses outer edges of the display screen and outer edges of the first conductive part and the second conductive part of the sounding structure, for fixing the display screen and the sounding structure and protecting the outer edges of the display screen and the sounding structure.

2. The display apparatus of claim 1 , wherein the at least one insulator comprises a plurality of insulators, which are located at edges of the first conductive part and the second conductive part; and/or located at a central region of the first conductive part and the second conductive part.

3. The display apparatus of claim 2 , wherein the insulator is made of an elastic material.

4. The display apparatus of claim 1 , wherein the first conductive part is attached to the display screen, and the first conductive part and the display screen are both flexible members; or the second conductive part is a flexible member;
the flexible member has a curvature radius less than 1 cm, and a distance between the first conductive part and the second conductive part is in the range of 1˜20 mm, and
one of the first conductive part and the second conductive part is loaded with the sound signals, and the other is loaded with fixed signals.

5. The display apparatus of claim 4 , wherein the sound signals are voltage signals with a varying polarity; and the fixed signals are voltage signals with a fixed polarity.

6. The display apparatus of claim 1 , wherein the first conductive part is attached to the display screen, and the first conductive part, the display screen and the second conductive part are flexible members;
one of the first conductive part and the second conductive part is loaded with the sound signals, the other is loaded with fixed signals; the flexible member loaded with the sound signals has a curvature radius less than 0.5 cm; the flexible member loaded with fixed signals has a curvature radius greater than 1 cm; and a distance between the first conductive part and the second conductive part is in the range of 10˜20 mm.

7. The display apparatus of claim 6 , wherein the sound signals are voltage signals with a varying polarity; and the fixed signals are voltage signals with a fixed polarity.

8. The display apparatus of claim 5 , wherein the first conductive part comprises a first base and a first conductive layer stacked on each other, and the first base is attached to the display screen;
the second conductive part comprises a second base and a second conductive layer stacked on each other, and the second conductive layer faces the first conductive layer; and
signals loaded on the first conductive part are loaded on the first conductive layer; and signals loaded on the second conductive part are loaded on the second conductive layer.

9. The display apparatus of claim 8 , wherein the first conductive layer is loaded with the sound signals and the second conductive layer is loaded with the fixed signals, the first conductive layer has a resistance greater than 500 MΩ, and the first conductive layer has a thickness less than 50 μm, and the first base has a thickness less than 0.1 mm, or
the second conductive layer is loaded with the sound signals and the first conductive layer is loaded with the fixed signals, the second conductive layer has a resistance greater than 500 MΩ, and the second conductive layer has a thickness less than 50 μm, and the second base has a thickness less than 0.1 mm.

10. The display apparatus of claim 9 , further comprising: a plurality of separators which are located between the first conductive part and the second conductive part and are configured to support and connect the first conductive part and the second conductive part,
wherein the first conductive layer is loaded with the sound signals and the second conductive layer is loaded with the fixed signals, the first conductive layer is divided into a conductive layer at a middle region and at least one conductive layer at an edge region by the plurality of separators, or
the second conductive layer is loaded with the sound signals and the first conductive layer is loaded with the fixed signals, the second conductive layer is divided into a conductive layer at a middle region and at least one conductive layer at an edge region by the plurality of separators.

11. The display apparatus of claim 10 , wherein the conductive layer at the middle region comprises a plurality of central conductive layers distributed in concentric rings, and two adjacent central conductive layers of the plurality of central conductive layers are separated and electrically insulated from each other; and
each of the central conductive layers at the middle region is separately loaded with the sound signals.

12. The display apparatus of claim 11 , wherein the at least one conductive layer at the edge region comprises a plurality of edge conductive layers distributed in concentric rings, and two adjacent edge conductive layers of the plurality of edge conductive layers are separated and electrically insulated from each other; and each of the edge conductive layers at the edge region is separately loaded with the sound signals,
a diameter of an outermost concentric ring of the plurality of central conductive layers is at least twice greater than that of an outermost concentric ring of the plurality of edge conductive layers.

13. The display apparatus of claim 5 , wherein two sounding structures are respectively arranged at both sides of the two opposite surfaces of the display screen; a first surface of the two opposite surfaces is provided with a first sounding structure, a second surface of the two opposite surfaces is provided with a second sounding structure, the first conductive parts of the first sounding structure and the second sounding structure and the display screen are flexible members, and the second conductive parts of the first sounding structure and the second sounding structure are inflexible members,
the display apparatus further comprises:
a driver configured to load the sound signals or the fixed signals on the first conductive parts and the second conductive parts via separated wires, wherein the polarity of voltage signals loaded on one of two first conductive parts and two second conductive parts of the first sounding structure and the second sounding structure is opposite to that of voltage signals loaded on the other three of the two first conductive parts and the two second conductive parts of the first sounding structure and the second sounding structure;
a controller configured to control the driver;

Assignees

• Hefei Xinsheng Optoelectronics Technology Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Yao Gu
• Zou Qinghua
• Zhu Ruhui
• Wang Yu
• Duan Tingyuan

Classifications

• G09G3/3208

  organic, e.g. using organic light-emitting diodes [OLED] · CPC title

• H01L27/3225 Primary

  Electricity · mapped topic

• H10K2102/311

  Flexible OLED · CPC title

• H10K59/00 Primary

  Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00 · CPC title

• G06F1/1613 Primary

  for portable computers (cooling arrangements therefor G06F1/203; constructional details or arrangements for pocket calculators, electronic agendas or books G06F15/0216; constructional details of portable telephone sets: with several bodies H04M1/0202) · CPC title