Organic light emitting display device and head mounted display system having the same

Patent metadata

Field	Value
Publication number	US-10276091-B2
Application number	US-201715648775-A
Country	US
Kind code	B2
Filing date	Jul 13, 2017
Priority date	Jul 15, 2016
Publication date	Apr 30, 2019
Grant date	Apr 30, 2019

Abstract

A head mounted display system includes an infrared sensor generating an infrared image, an image processor measuring a position of a user pupil based on the infrared image and generating image source based on the position of the user pupil, and an organic light emitting display device displaying an image corresponding to the image source. The organic light emitting display device includes a display panel and a panel driver. The display panel includes a plurality of infrared pixels disposed in an infrared emission region, the infrared pixels emitting infrared light, and a plurality of display pixels disposed in a display region, the display pixels emitting visible light. The panel driver provides driving signals to the infrared pixels and the display pixels.

First claim

What is claimed is:

1. A head mounted display system comprising:
an infrared sensor configured to generate an infrared image;
an image processor configured to measure a position of a user pupil based on the infrared image and configured to generate image source based on the position of the user pupil; and
an organic light emitting display device configured to display an image corresponding to the image source,
wherein the organic light emitting display device includes:
a display panel including a plurality of infrared pixels disposed in an infrared emission region, the infrared pixels configured to emit infrared light, and a plurality of display pixels disposed in a display region, the display pixels configured to emit visible light; and
a panel driver configured to provide driving signals to the infrared pixels and the display pixels, and
wherein the display pixels includes red color pixels configured to emit red color light,
wherein a first emission layer included in each of the infrared pixels includes substantially a same material as a second emission layer included in each of the red color pixels, and
wherein a thickness of the first emission layer is greater than a thickness of the second emission layer.

2. The head mounted display system of claim 1 , wherein the infrared emission region is adjacent to at least one side of the display region.

3. The head mounted display system of claim 1 , wherein the infrared emission region surrounds the display region.

4. The head mounted display system of claim 1 , wherein the image processor generates the image source including a first portion and a second portion such that the first portion corresponding to the position of the user pupil has a first resolution and the second portion different from the first portion has a second resolution lower than the first resolution.

5. The head mounted display system of claim 1 , wherein a first pixel circuit included in each of the infrared pixels has a different structure from a second pixel circuit included in each of the display pixels.

6. The head mounted display system of claim 1 , wherein the panel driver generates the driving signals such that the display pixels are driven by a simultaneous emission manner,
wherein each frame period of the simultaneous emission manner includes a non-emission period during which the display pixels do not emit the visible light and an emission period during which the display pixels simultaneously emit the visible light, and
wherein the infrared pixels emit the infrared light in at least a part of the non-emission period.

7. The head mounted display system of claim 6 , wherein the infrared sensor includes an infrared camera, and
wherein the infrared camera captures the infrared image in at least a part of the non-emission period.

8. The head mounted display system of claim 6 , wherein the panel driver includes:
a scan driver configured to provide scan signals to the infrared pixels and the display pixels;
a common control driver configured to provide a first common control signal for controlling a compensation operation of a threshold voltage of a driving transistor included in each of the display pixels and a second common control signal for controlling an emission operation of each of the display pixels to the display pixels; and
a data driver configured to provide data signals to the infrared pixels and the display pixels.

9. The head mounted display system of claim 8 , wherein the data driver provides the data signals that are substantially the same as each other to the infrared pixels.

10. The head mounted display system of claim 8 , wherein the data driver provides, to the infrared pixels, the data signals that increase as a distance between a center of the display panel and each of the infrared pixels increases.

11. An organic light emitting display device comprising:
a display panel including a plurality of infrared pixels disposed in an infrared emission region, the infrared pixels configured to emit infrared light, and a plurality of display pixels disposed in a display region, the display pixels configured to emit visible light; and
a panel driver configured to provide driving signals to the infrared pixels and the display pixels,
wherein the display pixels includes red color pixels configured to emit red color light, and
wherein a first emission layer included in each of the infrared pixels includes substantially a same material as a second emission layer included in each of the red color pixels, and
wherein a thickness of the first emission layer is greater than a thickness of the second emission layer.

12. The display device of claim 11 , wherein the infrared emission region is adjacent to at least one side of the display region.

13. The display device of claim 11 , wherein the infrared emission region surrounds the display region.

14. An organic light emitting display device comprising:
a display panel including a plurality of infrared pixels disposed in an infrared emission region, the infrared pixels configured to emit infrared light, and a plurality of display pixels disposed in a display region, the display pixels configured to emit visible light; and
a panel driver configured to provide driving signals to the infrared pixels and the display pixels such that the display pixels are driven by a simultaneous emission manner,
wherein each frame period of the simultaneous emission manner includes a non-emission period during which the display pixels do not emit the visible light and an emission period during which the display pixels simultaneously emit the visible light, and
wherein the infrared pixels emit the infrared light in at least a part of the non-emission period.

15. The display device of claim 14 , wherein the panel driver includes:
a scan driver configured to provide scan signals to the infrared pixels and the display pixels;
a common control driver configured to provide a first common control signal for controlling a compensation operation of a threshold voltage of a driving transistor included in each of the display pixels and a second common control signal for controlling an emission operation of each of the display pixels to the display pixels; and
a data driver configured to provide data signals to the infrared pixels and the display pixels.

16. The display device of claim 15 , wherein the data driver provides the data signals that are substantially the same as each other to the infrared pixels.

17. The display device of claim 15 , wherein the data driver provides, to the infrared pixels, the data signals that increase as a distance between a center of the display panel and each of the infrared pixels increases.

Assignees

• Samsung Display Co Ltd

Inventors

• Yoo Young-Wook
• Lim Jae-Keun
• Noh Jin-Woo
• Park Ji-Eun
• Choi Sung-Jin
• Kamal Hassan

Classifications

• G09G3/3266

  Details of drivers for scan electrodes · CPC title

• G09G3/3275

  Details of drivers for data electrodes · CPC title

• G02B2027/0138

  comprising image capture systems, e.g. camera · CPC title

• G06K9/00604

  Physics · mapped topic

• G02B2027/0178

  Eyeglass type (eyeglass details G02C) · CPC title