Window member, electronic apparatus including the same, and manufacturing method of window member

Patent metadata

Field	Value
Publication number	US-2021026046-A1
Application number	US-202015930310-A
Country	US
Kind code	A1
Filing date	May 12, 2020
Priority date	Jul 22, 2019
Publication date	Jan 28, 2021
Grant date	—

Abstract

A window member including a base substrate and a light shielding layer including a first light shielding pattern disposed in a first area of the base substrate and a second light shielding pattern disposed in a second area of the base substrate while being spaced apart from the first light shielding pattern and providing a signal transmission area at an inner side thereof. The second light shielding pattern includes an edge having a plurality of curved portions on a plane. This arrangement reduces an area of the light shielding pattern adjacent to the signal transmission area of the window member.

First claim

What is claimed is:

1 . A window member comprising:
a base substrate; and a light shielding layer comprising a first light shielding pattern disposed in a first area of the base substrate and a second light shielding pattern disposed in a second area of the base substrate while being spaced apart from the first light shielding pattern and providing a signal transmission area at an inner side thereof, wherein the second light shielding pattern comprises an edge having a plurality of curved portions on a plane.

2 . The window member of claim 1 , wherein the second light shielding pattern has a multilayer structure.

3 . The window member of claim 1 , wherein the second light shielding pattern comprises a first layer disposed on the base substrate and a second layer disposed on the first layer, and a side surface of the first layer and a side surface of the second layer are aligned on a cross-section.

4 . The window member of claim 1 , wherein the edge comprises an outer edge and an inner edge configured to define the signal transmission area, and the inner edge is a closed line.

5 . The window member of claim 4 , wherein at least one of the outer edge and the inner edge comprises the plurality of curved portions.

6 . The window member of claim 4 , wherein a distance between the outer edge and the inner edge is about 0.05 mm to about 1.50 mm.

7 . The window member of claim 1 , wherein the signal transmission area is provided in plurality.

8 . The window member of claim 1 , wherein the base substrate is a glass substrate, and the second light shielding pattern is directly disposed on one surface of the glass substrate.

9 . The window member of claim 1 , wherein the first light shielding pattern and the second light shielding pattern have the same laminated structure.

10 . The window member of claim 1 , wherein each of the curved portions comprises a curved line recessed toward the inside of the second light shielding pattern on the plane.

11 . The window member of claim 1 , wherein a pitch of the curved portions is about 5 μm to about 30 μm.

12 . The window member of claim 1 , wherein the second light shielding pattern comprises a first layer having a black color and a second layer having a colored color.

13 . An electronic apparatus comprising:
a display panel comprising a display area configured to display an image and a non-display area disposed adjacent to the display area; a window member disposed on the display panel; and an input sensor disposed between the display panel and the window member, wherein the window member comprises a base substrate and a light shielding pattern disposed on a bottom surface of the base substrate while being surrounded by the display area on a plane and providing a signal transmission area at an inner side thereof, and the light shielding pattern comprises an edge having a plurality of curved portions on the plane.

14 . The electronic apparatus of claim 13 , further comprising an electronic module disposed below the window member and the display panel and aligned with the signal transmission area.

15 . The electronic apparatus of claim 14 , wherein the electronic module comprises a camera module, an infrared sensor, or a photo sensor.

16 . The electronic apparatus of claim 13 , wherein at least one of the display panel and the input sensor comprises a first area corresponding to the signal transmission area and a second area adjacent to the first area, and the first area has a light transmittance greater than the second area.

17 . A method for manufacturing a window member, the method comprising:
providing a base substrate; and forming a light shielding layer comprising a first light shielding pattern on one surface of the base substrate and a second light shielding pattern spaced apart from the first light shielding pattern and configured to define a signal transmission area at an inner side thereof, wherein the forming of the light shielding layer comprises: forming a preliminary light shielding pattern corresponding to the second light shielding pattern on the one surface of the base substrate; and irradiating a laser beam to a partial area of the preliminary light shielding pattern.

18 . The method of claim 17 , wherein the preliminary light shielding pattern defines a preliminary signal transmission area at an inner side thereof, and
in the irradiating the laser beam, the laser beam is irradiated to an outer edge area adjacent to an outer edge of the preliminary light shielding pattern and an inner edge area adjacent to an inner edge configured to define the preliminary signal transmission area.

19 . The method of claim 17 , wherein the irradiating the laser beam comprises:
irradiating the inner edge area with the laser beam to form the signal transmission area; and irradiating the outer edge area adjacent to an outer edge of the preliminary light shielding pattern with the laser beam.

20 . The method of claim 17 , wherein the irradiating the laser beam comprises irradiating the laser beam from above a top surface of the base substrate.

21 . The method of claim 17 , wherein the second light shielding pattern has a multilayer structure.

22 . The method of claim 17 , wherein the second light shielding pattern comprises a first layer disposed on the base substrate and a second layer disposed on the first layer, and a side surface of the first layer and a side surface of the second layer are aligned on a cross-section.

23 . The method of claim 17 , wherein the signal transmission area is provided in plurality.

24 . The method of claim 17 , wherein the signal transmission area is aligned with an electronic module disposed under the base substrate, and the electronic module comprises a camera module, an infrared sensor, or a photo sensor.

Assignees

• Samsung Display Co Ltd

Inventors

• Shim Byoungyul
• Choi Beomgyu

Classifications

• H04M1/0266

  for a display module assembly · CPC title

• H10K59/8792

  comprising light absorbing layers, e.g. black layers · CPC title

• G02B5/20 Primary

  Filters (polarising elements G02B5/30) · CPC title

• H04M2250/12

  including a sensor for measuring a physical value, e.g. temperature or motion · CPC title

• G02B5/003 Primary

  Light absorbing elements · CPC title