Display device

Patent metadata

Field	Value
Publication number	US-11199749-B2
Application number	US-201816473080-A
Country	US
Kind code	B2
Filing date	Nov 13, 2018
Priority date	Apr 25, 2018
Publication date	Dec 14, 2021
Grant date	Dec 14, 2021

Abstract

This disclosure discloses a display device including: a display panel; a backlight module including a light-emitting diode group; the display panel including a first substrate and a second substrate successively along the direction from the backlight module, wherein the first substrate includes an exposed area which is not covered by the second substrate, and an orthographic projection of the light-emitting diode group on the first substrate lies in the exposed area; a protective cover plate on the light exit side of the display panel; a housing on the side of the backlight module away from the display panel, and is grounded; and a conductive structure, wherein an orthographic projection of the conductive structure on the first substrate at least partially overlaps with the orthographic projection of the light-emitting diode group on the first substrate, and the conductive structure connects the protective cover plate with the housing.

First claim

The invention claimed is:

1. A display device, comprising:
a display panel;
a backlight module comprising a light-emitting diode group;
the display panel comprising a first substrate and a second substrate successively arranged along a direction away from the backlight module, wherein the first substrate comprises an exposed area which is not covered by the second substrate, and an orthographic projection of the light-emitting diode group on the first substrate lies in the exposed area;
a protective cover plate on a light exit side of the display panel;
a housing on a side of the backlight module away from the display panel, the housing being grounded; and
a conductive structure, wherein an orthographic projection of the conductive structure on the first substrate at least partially overlaps with the orthographic projection of the light-emitting diode group on the first substrate, and the conductive structure connects the protective cover plate with the housing.

2. The display device according to claim 1 , further comprising a flexible printed circuit connected with the first substrate; and
the flexible printed circuit comprises a first ground terminal, and the conductive structure is electrically connected with the first ground terminal.

3. The display device according to claim 2 , wherein the conductive structure comprises a conductivity shielding layer on a side of the first substrate proximate to the second substrate;
the conductivity shielding layer is in the exposed area of the first substrate, and an orthographic projection of the conductivity shielding layer on the first substrate covers an orthographic projection of at least one light-emitting diode in the light-emitting diode group on the first substrate;
the first substrate is provided with a contact pad in the exposed area; and
the conductivity shielding layer is electrically connected with the contact pad, and the first ground terminal is electrically connected with the contact pad.

4. The display device according to claim 3 , wherein the orthographic projection of the conductivity shielding layer on the first substrate covers orthographic projections of light-emitting diodes at two ends of the light-emitting diode group on the first substrate.

5. The display device according to claim 3 , wherein a material of the conductivity shielding layer comprises a transparent conductive material.

6. The display device according to claim 2 , wherein the conductive structure comprises a conductive buffer section and a conductive connection section;
the conductive buffer section comprises one end connected with a side of the protective cover plate facing the first substrate, and the other end connected with the first substrate in the exposed area;
the conductive connection section is bonded to sides of the first substrate and the backlight module corresponding to the light-emitting diode group, and the conductive connection section is lapped with the conductive buffer section;
an orthographic projection of the conductive buffer section on the first substrate does not overlap with an orthographic projection of the flexible printed circuit on the first substrate; and
the conductive connection section has no lapped area with the flexible printed circuit.

7. The display device according to claim 6 , wherein the protective cover plate is provided with a second ground terminal on a side thereof proximate to the display panel, the second ground terminal being grounded; and
the conductive buffer section is electrically connected with the second ground terminal.

8. The display device according to claim 6 , wherein the conductive structure further comprises a conductive layer on a side of the backlight module proximate to the housing; and
the conductive layer is lapped with the conductive connection section, and is electrically connected with the housing.

9. The display device according to claim 8 , wherein an orthographic projection of the conductive layer on the first substrate covers at least the orthographic projection of the light-emitting diode group on the first substrate.

10. The display device according to claim 8 , wherein a material of the conductive layer comprises graphite.

11. The display device according to claim 6 , wherein a material of the conductive buffer section comprises conductive foam.

12. The display device according to claim 6 , wherein the conductive connection section is a conductive adhesive coating layer.

13. The display device according to claim 6 , wherein the backlight module further comprises: a metal backboard on a side of the light-emitting diode group away from the display panel, and a reflecting sheet between the light-emitting diode group and the metal backboard; and
the metal backboard is electrically connected with the conductive structure.

Assignees

• Beijing Boe Optoelectronics Tech Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Wu Hao
• Zhang Xiaoping
• Yin Hui
• Jing Qi
• Zhang Zheng
• Ci Gang
• Ma Xiao
• Luo Zhenhua
• Zhang Luo
• Cao Xuewen
• Liu Binbin
• Su Wei
• Kim Hyungkyu
• Cai Site

Classifications

• H10D89/931

  characterised by the dispositions of the protective arrangements · CPC title

• H10D89/911

  using passive elements as protective elements · CPC title

• H05K2201/10136

  Liquid Crystal display [LCD] · CPC title

• H05K3/305

  Affixing by adhesive · CPC title

• H05K1/189

  characterised by the use of flexible or folded printed circuits · CPC title