Organic light emitting display device

Patent metadata

Field	Value
Publication number	US-2016240818-A1
Application number	US-201514803252-A
Country	US
Kind code	A1
Filing date	Jul 20, 2015
Priority date	Feb 16, 2015
Publication date	Aug 18, 2016
Grant date	—

Abstract

An organic light display device includes a first substrate, light emitting structures, a second substrate and a reflective member. The first substrate includes a plurality of pixel regions, each pixel region including a plurality of sub-pixel regions, and a reflective region which surrounds the sub-pixel regions. The reflective region excludes the sub-pixel regions. The light emitting structures are respectively disposed in the sub-pixel regions on the first substrate. The second substrate is opposite to the first substrate. The reflective member is disposed in the reflective region on the lower surface of the second substrate. First openings exposing the sub-pixel regions and a second opening exposing at least a portion the reflective region are located in the reflective member.

First claim

What is claimed is:

1 . An organic light display device, comprising:
a first substrate including a plurality of pixel regions, each pixel region including: a plurality of sub-pixel regions, and a reflective region which surrounds the sub-pixel regions, the reflective region excluding the sub-pixel regions; light emitting structures respectively in the sub-pixel regions of the first substrate; a second substrate opposite to the first substrate; and a reflective member on the lower surface of the second substrate, the reflective member disposed in the reflective region excluding the sub-pixel regions, the reflective member defining first openings exposing the sub-pixel regions and a second opening spaced apart from the first openings.

2 . The organic light display device of claim 1 , wherein a size of the second opening defined by the reflective member defines a reflectivity of the reflective member.

3 . The organic light display device of claim 1 , further comprising:
common lines in the reflective region, the common lines being electrically connected to the light emitting structures, wherein the common lines overlap the reflective member which defines the first openings exposing the sub-pixel regions and the second opening spaced apart from the first openings.

4 . The organic light display device of claim 3 , wherein the common lines include a data line, a scan line or a power supply voltage line.

5 . The organic light display device of claim 1 , wherein in a plan view, the second opening is a triangular opening, a square opening, a rectangular opening, a diamond opening, a polygonal opening, a track-shaped opening or an elliptical opening.

6 . The organic light display device of claim 1 , wherein a planar size of the second opening is less than a planar size of each of the first openings.

7 . The organic light display device of claim 1 , wherein a planar size of the second opening is greater than a planar size of each of the first openings.

8 . The organic light display device of claim 1 , further comprising a plurality of second openings respectively in the plurality of pixel regions.

9 . The organic light display device of claim 8 wherein the first and second openings have an arrangement in the each pixel region, the arrangements of the first and second openings being the same among the plurality of pixel regions.

10 . The organic light display device of claim 8 , wherein the first and second openings have an arrangement in the each pixel region, the arrangements of the first openings being the same among the plurality of pixel regions, and the arrangements of the second openings being different among the plurality of pixel regions.

11 . The organic light display device of claim 8 , wherein among the plurality of pixel regions, the second openings have the same shape as each other.

12 . The organic light display device of claim 8 , wherein among the plurality of pixel regions, the second openings have different shapes from each other.

13 . The organic light display device of claim 8 , wherein among the plurality of pixel regions, the second opening is located in the reflective region of at least one of two adjacent pixel regions.

14 . The organic light display device of claim 13 , wherein the second openings have an arrangement in the each pixel region, the arrangements of the second openings being the same among the plurality of pixel regions.

15 . The organic light emitting display device of claim 13 , wherein the second openings have an arrangement in the each pixel region, the arrangements of the second openings being different among the plurality of pixel regions.

16 . The organic light emitting display device of claim 1 , wherein
the first substrate further includes a transparent region defined in the reflective region, the transparent region excluding a remainder of the reflective region, wherein the second opening defined by the reflective member exposes the transparent region of the first substrate.

17 . The organic light emitting display device of claim 16 , further comprising:
common lines in the reflective region, the common lines being electrically connected to the light emitting structures, wherein the common lines overlap the reflective member which defines the first openings exposing the sub-pixel regions and the second opening spaced apart from the first openings.

18 . The organic light emitting display device of claim 16 , wherein a planar area of the transparent region is greater than a planar area of the remainder of the reflective region.

19 . The organic light emitting display device of claim 16 , wherein the transparent region excluding the remainder of the reflective region transmits therethrough an image of an object located at the first substrate side of the organic light emitting display device.

20 . The organic light emitting display device of claim 1 , wherein each of the light emitting structures includes:
a semiconductor element on the first substrate; a lower electrode on the semiconductor element, the lower electrode being electrically connected to the semiconductor element; a pixel defining layer exposing at least a portion of the lower electrode; a light emitting layer on the exposed lower electrode; and an upper electrode on the light emitting layer.

Assignees

• Samsung Display Co Ltd

Inventors

• Chung Jin-Koo
• Choi Jun-Ho
• Kim Kyung-Ho
• Nam Eun-Kyoung
• Moon Jeong-Woo

Classifications

• H10K59/8791

  Arrangements for improving contrast, e.g. preventing reflection of ambient light · CPC title

• H10K59/878

  comprising reflective means · CPC title

• H10K50/856

  comprising reflective means · CPC title

• H10K59/131 Primary

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

• H01L27/3248

  Electricity · mapped topic