Display module, display apparatus for vehicle, and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-2016358997-A1
Application number	US-201615093321-A
Country	US
Kind code	A1
Filing date	Apr 7, 2016
Priority date	Jun 2, 2015
Publication date	Dec 8, 2016
Grant date	—

Abstract

A display module includes abase substrate including an upper surface and a lower surface opposite the upper surface; a pixel layer facing the base substrate such that the upper surface of the base substrate is between the lower surface and the pixel layer, the pixel layer including a plurality of pixels; and a window member facing the base substrate such that the pixel layer is between the window member and the base substrate, the window member in an upper surface exposed to an outside thereof and a lower surface opposite the upper surface, and the upper surface of the window member and the lower surface of the base substrate include intaglio patterns, the intaglio patterns are overlapping with a dotted area when viewed in a plan view, and the display module is configured to be torn along the dotted area when a force is applied thereto.

First claim

What is claimed is:

1 . A display module comprising:
a base substrate comprising an upper surface and a lower surface opposite the upper surface; a pixel layer facing the base substrate such that the upper surface the base substrate is between the lower surface and the pixel layer, the pixel layer comprising a plurality of pixels; and a window member facing the base substrate such that the pixel layer is between the window member and the base substrate, the window member comprising an upper surface exposed to an outside thereof and a lower surface opposite the upper surface of the window member, wherein the upper surface of the window member and the lower surface of the base substrate comprise intaglio patterns, the intaglio patterns are overlapping with a dotted area when viewed in, a plan view, and the display module is configured to be torn along the dotted area when a force is applied thereto.

2 . The display module of claim 1 , wherein the intaglio patterns are randomly disposed in the dotted area.

3 . The display module of claim 1 , wherein each of the intaglio patterns has a diameter from a few micrometers to hundreds of micrometers when viewed in a plan view.

4 . The display module of claim 1 , wherein the intaglio patterns comprise:
an upper groove formed in the upper surface of the window member; and a lower groove formed in the lower surface of the base substrate.

5 . The display module of claim 4 , wherein the upper groove is provided in a plural number, any one upper groove of the upper grooves has a depth different from a depth of another upper groove of the upper grooves the lower groove is provided in a plural number, and any one lower groove of the lower grooves has a depth different from a depth of another lower groove of the lower grooves.

6 . The display module of claim 4 , wherein the display module is divided into a plurality of display panels, each configured to display an image, and a dummy part between the display panels and the dotted area is in the dummy part.

7 . The display module of claim 6 , wherein the intaglio patterns further comprise a thru-hole penetrating through the base substrate, the pixel layer, and the window member.

8 . The display module of claim 6 , further comprising:
a wiring layer between the base substrate and the pixel layer to apply a signal to the pixel layer; an opposite layer between the pixel layer and the window member to protect the pixel layer; and a color filter layer between the opposite layer end the window member.

9 . The display module of claim 8 , wherein the upper groove sequentially penetrates through at least one of the window member, the color filter layer, the opposite layer, the pixel layer, the wiring layer, and the base substrate, and the lower groove sequentially penetrates through at least one of the base substrate, the wiring layer, the pixel layer, the opposite layer, the color filter layer, and the window member.

10 . The display module of claim 4 , wherein the display module is divided into a display area displaying an image and a non-display area disposed adjacent to the display area and the dotted area is disposed to cross the display area.

11 . The display module of claim 10 , wherein the upper groove and the lower groove cover the pixel layer so as not to expose the pixel layer.

12 . The display module of claim 10 , further comprising:
a wiring layer between the base substrate and the pixel layer to apply a signal to the pixel layer; an opposite layer between the pixel layer and the window member to protect the pixel layer; and a color filter layer between the opposite layer and the window member.

13 . The display module of claim 12 , wherein the upper groove sequentially penetrates through at least one of the window member and the color filter layer, and the lower groove sequentially penetrates through at least one of the base substrate and the wiring layer.

14 . A display apparatus of a vehicle including an area in which an airbag is embedded, the display apparatus comprising:
a base substrate comprising an upper surface and a lower surface opposite the upper surface; a pixel layer facing the base substrate such that the upper surface of the base substrate is between the lower surface and the pixel Layer, the pixel layer comprising a plurality of pixels; and a window member facing the base substrate such that the pixel layer is between the window member and the base substrate, the window member comprising an upper surface exposed to an outside thereof and a lower surface opposite the upper surface of the window member, wherein the upper surface of the window member and the lower surface of the base substrate comprise intaglio patterns, the intaglio patterns are overlapping with a dotted area when viewed in a plan view, and the display module is configured to be torn along the dotted area by a force applied to the display module when the airbag is deployed.

15 . The display apparatus of claim 14 , wherein the display apparatus is divided into a plurality of display panels, each configured to display an image, and a dummy part between the display panels, and he dotted area is in the dummy part.

16 . The display apparatus of claim 14 , wherein the display apparatus is divided into a display area configured to display an image, and a non-display area adjacent to the display area, and the dotted area crosses the display area.

17 . A method of manufacturing a display module, the method comprising:
providing a display module comprising a base substrate, a pixel layer, and a window member, which are sequentially stacked one on another and comprising a dotted area defined therein when viewed in a plan view; irradiating a first femtosecond laser downward from above the window member to the dotted area of the display module; and irradiating a second femtosecond laser upward from below the base substrate to the dotted area of the display module.

18 . The method of claim 17 , wherein the first femtosecond laser is irradiated several times at different energy intensities, and the second femtosecond laser is irradiated several times at different energy intensities.

19 . The method of claim 17 , wherein the first femtosecond laser is randomly irradiated to the dotted area several times, and the second femtosecond laser is randomly irradiated to the dotted area several times.

Assignees

• Samsung Display Co Ltd

Inventors

• Bae Jongsung
• Kim Mugyeom
• Kim Minsoo

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

• B60K37/20

  Dashboard panels · CPC title

• B60K35/22

  Display screens · CPC title

• H10K59/871

  Self-supporting sealing arrangements · CPC title

• H10K59/18

  Tiled displays · CPC title