Tape, vehicle-mounted display module and vehicle-mounted display device

Patent metadata

Field	Value
Publication number	US-11964464-B2
Application number	US-201916971032-A
Country	US
Kind code	B2
Filing date	Oct 29, 2019
Priority date	Oct 29, 2019
Publication date	Apr 23, 2024
Grant date	Apr 23, 2024

Abstract

A tape includes: a substrate, a conductive adhesive layer disposed on the substrate, and an insulating layer disposed on a part of a bonding surface of the conductive adhesive layer. The insulating layer is configured to insulate the conductive adhesive layer from a conducting part of an object to be bonded.

First claim

What is claimed is:

1. A tape, comprising:
a substrate;
a conductive adhesive layer disposed on the substrate; and
an insulating layer disposed on a part of a bonding surface of the conductive adhesive layer, wherein the insulating layer is configured to insulate the conductive adhesive layer from a conducting part of an object to be bonded;
wherein the insulating layer has a multi-layer structure, and the insulating layer includes: at least one insulating resin layer stacked along a direction of the conductive adhesive layer facing away from the substrate, and an insulating adhesive layer located on a surface of the at least one insulating resin layer facing away from the substrate;
wherein an orthographic projection of the insulating layer on the substrate is within an orthographic projection of the conductive adhesive layer on the substrate, and at least a part of an outer contour of the orthographic projection of the insulating layer on the substrate and an outer contour of the orthographic projection of the conductive adhesive layer on the substrate have a space therebetween, wherein the insulating layer is disposed in a central region of the conductive adhesive layer, and there is the space between all edges of the insulating layer and corresponding edges of the conductive adhesive layer;
wherein the substrate is a light-shielding substrate, and the substrate is made of a material that is opaque or has a light transmittance less than or equal to 10%; or
the conductive adhesive layer is a light-shielding conductive adhesive layer, and the conductive adhesive layer is made of conductive glue that is opaque or has a light transmittance less than or equal to 10%.

2. The tape according to claim 1 , wherein a thickness of the insulating layer ranges from 0.001 mm to 0.030 mm, and the thickness of the insulating layer is a dimension thereof along a direction facing away from the conductive adhesive layer.

3. A vehicle-mounted display module, comprising:
a display panel;
a plastic frame bearing the display panel; and
the tape bonding the display panel and the plastic frame according to claim 1 .

4. The vehicle-mounted display module according to claim 3 , wherein the display panel includes:
an array substrate;
a color filter substrate; and
a conducting part located on a part of the array substrate that is not covered by the color filter substrate;
wherein an orthographic projection of the conducting part on the array substrate is within an orthographic projection of the insulating layer in the tape on the array substrate.

5. The vehicle-mounted display module according to claim 3 , wherein the display panel includes:
an array substrate;
a color filter substrate;
a conducting part located on a part of the array substrate that is not covered by the color filter substrate; and
an overcoat coating on the conducting part, and the overcoat is configured to protect a conductive performance of the conducting part;
wherein an orthographic projection of a part of the conducting part that is not covered by the overcoat on the array substrate is within an orthographic projection of the insulating layer in the tape on the array substrate.

6. The vehicle-mounted display module according to claim 5 , wherein the overcoat is an ultraviolet ray adhesive layer or a room temperature vulcanized silicone rubber layer.

7. The vehicle-mounted display module according to claim 4 , wherein the conducting part includes signal lines or line detection points.

8. The vehicle-mounted display module according to claim 4 , wherein the display panel further includes: a first polarizer disposed on a side of the color filter substrate facing away from the array substrate; and
a part of the color filter substrate that is not covered by the first polarizer is bonded to the tape, and a thickness of the tape is less than or equal to a thickness of the first polarizer;
wherein the thickness of the tape and the thickness of the first polarizer are their dimensions along a direction facing away from the color filter substrate respectively.

9. The vehicle-mounted display module according to claim 3 , further comprising: a back light module disposed at a side of the plastic frame facing away from the display panel;
wherein the tape further bonds the back light module.

10. The vehicle-mounted display module according to claim 3 , further comprising:
a screen driving plate;
a flexible printed circuit electrically connected to the display panel;
a connector electrically connected to the screen driving plate and the flexible printed circuit;
wherein the tape bonds the screen driving plate, and an orthographic projection of the connector on the tape is within a region where the insulating layer in the tape is located.

11. A vehicle-mounted display device, comprising the vehicle-mounted display module according to claim 3 .

12. The vehicle-mounted display module according to claim 5 , wherein the conducting part includes signal lines or line detection points.

13. The vehicle-mounted display module according to claim 5 , wherein the display panel further includes: a first polarizer disposed on a side of the color filter substrate facing away from the array substrate; and
a part of the color filter substrate that is not covered by the first polarizer is bonded to the tape, and a thickness of the tape is less than or equal to a thickness of the first polarizer;
wherein the thickness of the tape and the thickness of the first polarizer are their dimensions along a direction facing away from the color filter substrate respectively.

Assignees

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

Inventors

• Cui Dong
• Han Rui
• Ma Qing
• Tong Zeyuan
• Zhang Zhipeng
• Wang Fengping
• Zhai Yue
• Zhang Zan
• Li Wenyang
• Chi Weining
• Tan Rui
• Leng Shouyang

Classifications

• B60K35/60

  Instruments characterised by their location or relative disposition in or on vehicles (arrangements of lighting devices on dashboards B60Q3/10) · CPC title

• B60K35/50

  Instruments characterised by their means of attachment to or integration in the vehicle (B60K35/231 takes precedence) · CPC title

• B60K35/22 Primary

  Display screens · CPC title

• B32B7/14 Primary

  applied in spaced arrangements, e.g. in stripes · CPC title

• B32B37/12

  characterised by using adhesives · CPC title