Display panel and organic light emitting display device having a display panel

Patent metadata

Field	Value
Publication number	US-2016172633-A1
Application number	US-201514818714-A
Country	US
Kind code	A1
Filing date	Aug 5, 2015
Priority date	Dec 11, 2014
Publication date	Jun 16, 2016
Grant date	—

Abstract

A display panel includes a substrate, light emitting structures disposed on an upper surface of the substrate in pixel regions, an encapsulation substrate disposed over the light emitting structures, and a light blocking member disposed on a lower surface of the substrate. The light blocking member has blocking portions corresponding to the pixel regions and openings corresponding to transparent regions.

First claim

What is claimed is:

1 . A display panel, comprising:
a substrate; light emitting structures disposed on an upper surface of the substrate in pixel regions; an encapsulation substrate disposed over the light emitting structures; and a light blocking member disposed on a lower surface of the substrate, the light blocking member having blocking portions corresponding to the pixel regions and openings corresponding to transparent regions.

2 . The display panel of claim 1 , wherein a size of openings of the light blocking member is the same as a size of the transparent regions, respectively.

3 . The display panel of claim 1 , wherein the blocking portions of the light blocking member extend along a first direction from a pixel region into a transparent region on the lower surface of the substrate, and a size of openings of the light blocking member is less than a size of the transparent regions, respectively.

4 . The display panel of claim 1 , wherein light emitting structures respectively include:
at least one semiconductor element disposed on the substrate in a pixel region, the semiconductor element including an active layer, a gate electrode, a source electrode, and a drain electrode; a first electrode disposed on the semiconductor element; a light emitting layer disposed on the first electrode; and a second electrode disposed on the light emitting layer.

5 . The display panel of claim 4 , further comprising:
a first insulation layer disposed on the substrate, covering the active layer, and extending along a first direction from a pixel region into a transparent region; a second insulation layer disposed on the first insulation layer, covering the gate electrode, and extending along the first direction; a third insulation layer disposed on the second insulation layer, covering the source and drain electrodes, and extending along the first direction; and a fourth insulation layer disposed on the third insulation layer and exposing a portion of the first electrode.

6 . The display panel of claim 5 , wherein at least one of a portion of the first through fourth insulation layers is located in the transparent region.

7 . The display panel of claim 5 , wherein the first through fourth insulation layers are not located in the transparent region.

8 . The display panel of claim 5 , wherein the second electrode is not located in the transparent region.

9 . The display panel of claim 5 , wherein the second electrode is located in the transparent region.

10 . The display panel of claim 1 , further comprising:
a protection layer disposed on the lower surface of the substrate, covering the light blocking member, and extending along a first direction from a pixel region into a transparent region.

11 . The display panel of claim 10 , wherein the protection layer includes openings, and
the openings of the protection layer overlap the openings of the light blocking member, respectively.

12 . The display panel of claim 11 , wherein a size of openings of the protection layer is the same as a size of openings of the light blocking member, respectively.

13 . The display panel of claim 1 , wherein pixel regions and transparent regions are alternately arranged in a first direction, and a row of pixel regions and a row of transparent regions are disposed in a second direction perpendicular to the first direction.

14 . An organic light emitting display device, comprising:
a first display panel; a first body surrounding the first display panel; a second display panel opposite to the first display panel; a second body surrounding the second display panel; and a connection member connecting the first body and the second body, wherein the first display panel comprises: a substrate; light emitting structures disposed on an upper surface of the substrate in pixel regions; an encapsulation substrate disposed over the light emitting structures; and a light blocking member disposed on a lower surface of the substrate, the light blocking member having blocking portions corresponding to the pixel regions and openings corresponding to transparent regions.

15 . The organic light emitting display device of claim 14 , wherein the first body and the second body are rotatable on the connection member.

16 . The organic light emitting display device of claim 15 , further comprising a controller to operate in:
a first mode in which the first display panel contacts the second display panel; and a second mode in which the first display panel is spaced apart from the second display panel.

17 . The organic light emitting display device of claim 16 , wherein when the first mode is performed, a display image is not displayed in the first display panel, and
a display image of the second display panel is transmitted through the openings of the light blocking member of the first display panel and the transparent regions.

18 . The organic light emitting display device of claim 16 , wherein, when the second mode is performed, a display image is displayed in the pixel regions of the first display panel.

19 . The organic light emitting display device of claim 16 , wherein when the second mode is performed, an image of an object that is located in the rear of the organic light emitting display device is transmitted through the transparent regions.

Assignees

• Samsung Display Co Ltd

Inventors

• Ahn Ki-Wan
• Jang Yong-Jae

Classifications

• H10K59/8792

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

• H10K59/873

  Encapsulations · CPC title

• H10K50/86

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

• H10K59/121 Primary

  characterised by the geometry or disposition of pixel elements · CPC title

• H01L51/5253

  Electricity · mapped topic