Organic light emitting display device and head-mounted display including the same

Patent metadata

Field	Value
Publication number	US-10439167-B2
Application number	US-201615364055-A
Country	US
Kind code	B2
Filing date	Nov 29, 2016
Priority date	Nov 30, 2015
Publication date	Oct 8, 2019
Grant date	Oct 8, 2019

Abstract

Disclosed is an organic light emitting display device and a head-mounted display including the same to reduce or prevent non-emissive areas from being seen in a lattice form. The organic light emitting display device includes a plurality of anode electrodes on a lower substrate, a bank dividing the plurality of anode electrodes and covering an edge of each of the plurality of anode electrodes, an organic light emitting layer on the plurality of anode electrodes, a second electrode on the organic light emitting layer, and a scattering layer overlapping the bank.

First claim

What is claimed is:

1. An organic light emitting display device comprising:
a plurality of anode electrodes on a lower substrate;
a bank dividing the plurality of anode electrodes and covering an edge of each of the plurality of anode electrodes;
an organic light emitting layer on the plurality of anode electrodes;
a second electrode on the organic light emitting layer;
a scattering layer overlapping the bank, and
an encapsulation layer covering the second electrode,
wherein the scattering layer is disposed on or in the encapsulation layer, and
wherein a width of the scattering layer is wider than a width of the bank, and the scattering layer overlaps with only a partial region at a border of each of a plurality of emissive areas of the organic light emitting display device, and
wherein the encapsulation layer comprises at least one inorganic layer and at least one organic layer, and
wherein the scattering layer is disposed on the at least one inorganic layer or the at least one organic layer.

2. The organic light emitting display device of claim 1 , further comprising a polarizer on an upper substrate facing the lower substrate.

3. An organic light emitting display device comprising:
a plurality of anode electrodes on a lower substrate;
a bank dividing the plurality of anode electrodes and covering an edge of each of the plurality of anode electrodes;
an organic light emitting layer on the plurality of anode electrodes;
a second electrode on the organic light emitting layer;
a scattering layer overlapping the bank;
an encapsulation layer covering the second electrode;
a plurality of color filters on the encapsulation layer; and
a black matrix between adjacent color filters, the black matrix overlapping the bank; and
an upper substrate on the plurality of color filters,
wherein a width of the scattering layer is wider than a width of the bank, and the scattering layer overlaps with only a partial region at a border of each of a plurality of emissive areas of the organic light emitting display device, and
wherein a width of the scattering layer is wider than a width of the black matrix, and
wherein the scattering layer is disposed between the upper substrate and the plurality of color filters.

4. A head-mounted display comprising:
an organic light emitting display device displaying an image;
a left-eye lens and a right-eye lens receiving the image displayed by the organic light emitting display device, wherein the organic light emitting display device comprises:
a plurality of anode electrodes on a lower substrate;
a bank dividing the plurality of anode electrodes and covering an edge of each of the plurality of anode electrodes;
an organic light emitting layer on the plurality of anode electrodes;
a second electrode on the organic light emitting layer;
a scattering layer overlapping the bank, and
an encapsulation layer covering the second electrode,
wherein the scattering layer is disposed on or in the encapsulation layer,
wherein a width of the scattering layer is wider than a width of the bank, and the scattering layer overlaps with only a partial region at a border of each of a plurality of emissive areas of the organic light emitting display device, and
wherein the encapsulation layer comprises at least one inorganic layer and at least one organic layer, and
wherein the scattering layer is disposed on the at least one inorganic layer or the at least one organic layer.

5. The head-mounted display of claim 4 , further comprising a display accommodating case accommodating the organic light emitting display device.

6. The head-mounted display of claim 5 , wherein the left-eye lens and the right-eye lens are disposed on one side of the display accommodating case.

7. The head-mounted display of claim 4 , further comprising a half mirror between the organic light emitting display device and each of the left-eye lens and the right-eye lens.

8. The head-mounted display of claim 4 , further comprising a polarizer disposed on an upper substrate facing the lower substrate.

9. The head-mounted display of claim 4 , further comprising:
a plurality of color filters on the encapsulation layer; and
a black matrix between adjacent color filters, the black matrix overlapping the bank, wherein a width of the scattering layer is wider than a width of the black matrix.

Assignees

• Lg Display Co Ltd

Inventors

• Jo Jang

Classifications

• G06F1/163

  Wearable computers, e.g. on a belt · CPC title

• G06F1/1637

  Details related to the display arrangement, including those related to the mounting of the display in the housing · CPC title

• G02B7/021

  for more than one lens · CPC title

• H01L51/5284

  Electricity · mapped topic

• G02B27/017 Primary

  Head mounted · CPC title