Display device and display module

Patent metadata

Field	Value
Publication number	US-11270635-B2
Application number	US-201916771252-A
Country	US
Kind code	B2
Filing date	Jul 30, 2019
Priority date	Jul 30, 2019
Publication date	Mar 8, 2022
Grant date	Mar 8, 2022

Abstract

A display device includes a display module and a middle frame antenna. The display module includes a display panel, a wave-absorbing layer, a driving circuit and a flexible circuit board. An orthographic projection of the driving circuit on a first panel part, an orthographic projection of the flexible circuit board on the first panel part, and an orthographic projection of the wave-absorbing layer on the first panel part do not overlap.

First claim

What is claimed is:

1. A display device, comprising:
a display module and a middle frame antenna located around the display module, wherein
the display module comprises:
a display panel, wherein the display panel comprises a first panel part, a second panel part and a bent panel part connecting the first panel part and the second panel part, and the second panel part is located on a back surface of the first panel part;
a wave-absorbing layer, wherein the wave-absorbing layer is located between the first panel part and the second panel part, and a minimum distance between a boundary of the wave-absorbing layer and the middle frame antenna is greater than or equal to 8 millimeters;
a driving circuit located on a side, away from the first panel part, of the second panel part and electrically connected with the display panel; and
a flexible circuit board located on the back surface of the first panel part and electrically connected with an end, away from the bent panel part, of the second panel part, and
wherein an orthographic projection of the driving circuit on the first panel part, an orthographic projection of the flexible circuit board on the first panel part and an orthographic projection of the wave-absorbing layer on the first panel part do not overlap.

2. The display device according to claim 1 , wherein
the driving circuit comprises a multiplexer and a display integrated circuit, both the multiplexer and the display integrated circuit are located on a surface, away from the first panel part, of the second panel part, and the display integrated circuit is electrically connected with the display panel through the multiplexer.

3. The display device according to claim 1 , wherein
the display module further comprises a shielding film located on a side, away from the first panel part, of the driving circuit;
an orthographic projection of the shielding film on the first panel part covers the orthographic projection of the driving circuit on the first panel part and the orthographic projection of the flexible circuit board on the first panel part; and
the orthographic projection of the shielding film on the first panel part does not overlap with the orthographic projection of the wave-absorbing layer on the first panel part.

4. The display device according to claim 3 , wherein
the shielding film comprises an adhesive layer and a shielding layer which are stacked; and the shielding film is adhered to the side, away from the first panel part, of the driving circuit through the adhesive layer.

5. The display device according to claim 4 , wherein
the shielding layer comprises one or more of a conductive fabric, copper foil and aluminum foil.

6. The display device according to claim 4 , wherein
the display module further comprises a heat-dissipating film located between the first panel part and the second panel part, and between the first panel part and the flexible circuit board, and part of the heat-dissipating film is in contact with the second panel part and the flexible circuit board.

7. The display device according to claim 6 , wherein the heat-dissipating film is made of metal.

8. The display device according to claim 6 , wherein
one end of the flexible circuit board is electrically connected with the end, away from the bent panel part, of the second panel part and the other end is configured to be electrically connected with a client mainboard, the flexible circuit board comprises a conductive layer and an insulating layer which are stacked, and the insulating layer has an opening and part of the conductive layer is exposed through the opening;
in the shielding film, the adhesive layer comprises a first conductive portion, a second conductive portion and an insulating portion except the first conductive portion and the second conductive portion, the first conductive portion is electrically connected with the second conductive portion, an orthographic projection of the first conductive portion on the first panel part overlaps with an orthographic projection of the opening on the first panel part, and an orthographic projection of the second conductive portion on the first panel part overlaps with a portion, not in contact with the flexible circuit board and the second panel part, of the heat-dissipating film; and
the shielding film is electrically connected with the flexible circuit board through the first conductive portion and electrically connected with the heat-dissipating film through the second conductive portion, and the shielding film is grounded.

9. The display device according to claim 6 , wherein
the display module further comprises a buffer layer located between the heat-dissipating film and the first panel part and distributed on the same layer as the wave-absorbing layer.

10. The display device according to claim 9 , wherein the buffer layer is a foam layer.

11. The display device according to claim 1 , wherein the minimum distance between the boundary of the wave-absorbing layer and the middle frame antenna is greater than or equal to 10 millimeters.

12. The display device according to claim 1 , wherein
the wave-absorbing layer is made of one or more of ferrite, magnetic iron nanomaterial, silicon carbide and a graphene polymer.

13. The display device according to claim 1 , wherein
a minimum distance between an end point of the middle frame antenna and an end point of the wave-absorbing layer is greater than or equal to 10 millimeters.

14. The display device according to claim 1 , wherein
a distance between the middle frame antenna and an edge of the display module is approximately 0.5 millimeter.

15. The display device according to claim 1 , wherein
the middle frame antenna comprises an upper antenna, a lower antenna and a side antenna, and a structure of the upper antenna is the same as that of the lower antenna;
the upper antenna is of a U-shaped structure and comprises a bottom edge and two side edges located at two ends of the bottom edge;
the upper antenna is located at a top of the display module, the bottom edge of the upper antenna extends along a top edge of the display module and the two side edges of the upper antenna extend along two side edges of the display module;
the lower antenna is located at a bottom of the display module, a bottom edge of the lower antenna extends along a bottom edge of the display module and two side edges of the lower antenna extend along the two side edges of the display module;
the side antenna is of a linear structure, extends along the side edge of the display module and is located between the upper antenna and the lower antenna; and
a minimum distance between the boundary of the wave-absorbing layer and the upper antenna and a minimum distance between the boundary of the wave-absorbing layer and the side antenna are greater than or equal to 8 millimeters, and a minimum distance between the boundary of the wave-absorbing layer and the lower antenna is greater than 8 millimeters.

16. The display device according to claim 15 , wherein
the minimum distance between the boundary of the wave-absorbing layer and the upper antenna is equal to the minimum distance between the boundary of the wave-absorbing layer and the side antenna.

17. The display device according to claim 1 , wherein
the middle frame antenna comprises an upper antenna and a lower antenna,
the upper antenna is of an L-shaped structure, comprises a first edge and a second edge, and a length of the first edge is greater than that of the second edge;
the lower antenna is of a U-shaped structure and comprises a botto

Assignees

• Chengdu Boe Optoelect Tech Co
• Boe Technology Group Co Ltd

Inventors

• Luo Yonghui
• Feng Binfeng
• Wang Jiaxiang
• Chen Yupeng
• Wang Chao
• Li Fei
• Zhang Zijie
• Ran Hailong

Classifications

• G09G3/3208 Primary

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

• H01Q1/243 Primary

  with built-in antennas · CPC title

• H10D86/00

  Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates · CPC title

• G09G2300/0426

  Layout of electrodes and connections · CPC title

• G09G3/20

  for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix {no fixed position being assigned to or needed to be assigned to the individual characters or partial characters} · CPC title