Display device with aligned openings in a polarizing film and conductive layers and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-12563952-B2
Application number	US-202217872904-A
Country	US
Kind code	B2
Filing date	Jul 25, 2022
Priority date	Jul 27, 2021
Publication date	Feb 24, 2026
Grant date	Feb 24, 2026

Abstract

A display device includes a substrate having a first area and a second area, wherein the first area includes a transmissive area and a non-transmissive area adjacent to the transmissive area and the second area has transmittance less than the first area, a display portion disposed in the non-transmissive area of the first area and the second area and disposed on the substrate, a conductive layer disposed between the substrate and the display portion and defining a plurality of first openings overlapping the transmissive area, a low reflection layer disposed between the substrate and the conductive layer, overlapping the conductive layer, and defining a plurality of second openings overlapping the transmissive area and a polarizing film disposed under the substrate, overlapping the conductive layer, and defining a plurality of third openings overlapping the transmissive area.

First claim

What is claimed is:

1 . A display device comprising:
a substrate including a first area and a second area, wherein the first area includes a transmissive area and a non-transmissive area disposed adjacent to the transmissive area, and the second area has transmittance less than the first area; a display portion disposed in the non-transmissive area of the first area and the second area and disposed on the substrate; a conductive layer disposed between the substrate and the display portion and defining a plurality of first openings overlapping the transmissive area; a low reflection layer disposed between the substrate and the conductive layer, overlapping the conductive layer, and defining a plurality of second openings overlapping the transmissive area and a polarizing film disposed under the substrate, overlapping the conductive layer, and defining a plurality of third openings overlapping the transmissive area, wherein the display portion includes a pixel which emits light, the first openings, the second openings, and the third openings are spaced apart from the pixel, in a plan view, and an area of each of the third openings is less than an area of each of the first openings, in a plan view.

2 . The display device of claim 1 , wherein in a plan view, each of the first openings and each of the second openings overlap each other, and
each of the first openings and each of the third openings overlap each other.

3 . The display device of claim 1 , wherein each of the first openings and each of the second openings have a same shape.

4 . The display device of claim 1 , wherein the conductive layer includes a plurality of unit patterns arranged in a matrix form and a plurality of bridge patterns connecting the unit patterns.

5 . The display device of claim 4 , wherein each of the first openings is defined by the unit patterns and the bridge patterns.

6 . The display device of claim 1 , wherein the low reflection layer includes amorphous silicon, silicon oxide, or a mixture thereof.

7 . The display device of claim 1 , wherein a reflectance of the polarizing film is less than a reflectance of the conductive layer.

8 . The display device of claim 1 , further comprising:
a functional module disposed under the substrate and the polarizing film and overlapping the first area.

9 . The display device of claim 1 , wherein the display portion includes a transistor disposed on the conductive layer and a light emitting diode electrically connected to the transistor.

10 . The display device of claim 9 , wherein the transistor and the light emitting diode overlap the non-transmissive area of the first area and the second area and do not overlap the transmissive area.

11 . A display device comprising:
a substrate including a first area and a second area, wherein the first area includes a transmissive area and a non-transmissive area disposed adjacent to the transmissive area and the second area has a transmittance less than a transmittance of the first area; a display portion disposed in the non-transmissive area of the first area and the second area and disposed on the substrate; a conductive layer disposed between the substrate and the display portion, overlapping the non-transmissive area of the first area and the second area, and defining a plurality of first openings overlapping the transmissive area; a low reflection layer disposed between the substrate and the conductive layer, overlapping the conductive layer, and defining a plurality of second openings, wherein each of the second openings overlaps each of the first openings and has the same shape as each of the first openings; and a polarizing film disposed under the substrate, overlapping the conductive layer, and defining a plurality of third openings, wherein each of the third openings overlaps each of the first openings and has an area less than an area of each of the first openings, wherein the display portion includes a pixel which emits light, and the first openings, the second openings, and the third openings are spaced apart from the pixel, in a plan view.

12 . The display device of claim 11 , wherein the conductive layer includes a plurality of unit patterns arranged in a matrix form and a plurality of bridge patterns connected the unit patterns.

13 . The display device of claim 12 , wherein each of the first openings is defined by the unit patterns and the bridge patterns.

14 . A method of manufacturing a display device, the method comprising steps of:
forming a low reflection layer on a substrate, wherein the substrate includes a first area including a transmissive area and a non-transmissive area disposed adjacent to the transmissive area, and a second area having transmittance less than transmittance of the first area; forming a conductive layer on the low reflection layer; forming a plurality of first openings by patterning a portion of the conductive layer overlapping the transmissive area; forming a plurality of second openings by patterning a portion of the low reflection layer overlapping the transmissive area; forming a display portion on the conductive layer; forming a polarizing film under the substrate; and forming a plurality of third openings in the polarizing film, wherein each of the third openings overlaps each of the first openings, wherein the display portion includes a pixel which emits light, the first openings, the second openings, and the third openings are spaced apart from the pixel, in a plan view, and an area of each of the third openings is less than an area of each of the first openings, in a plan view.

15 . The method of claim 14 , wherein the polarizing film overlaps the conductive layer.

16 . The method of claim 14 , wherein the first openings and the second openings are formed simultaneously.

17 . The method of claim 14 , wherein each of the first openings and each of the second openings have a same shape.

18 . The method of claim 14 , wherein the third openings are formed by irradiating a laser to the polarizing film.

Assignees

• Samsung Display Co Ltd

Inventors

• Ma Jin Seock
• Ko Moosoon
• Kim Donghoon
• Yim Sanghoon
• Kim Dongjo
• Kim Youngji

Classifications

• H10K71/00

  Manufacture or treatment specially adapted for the organic devices covered by this subclass · CPC title

• H10K59/40

  OLEDs integrated with touch screens · CPC title

• H10K59/131

  Interconnections, e.g. wiring lines or terminals · CPC title

• H10K59/65

  OLEDs integrated with inorganic image sensors · CPC title

• H10K59/00

  Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00 · CPC title