ORGANIC LIGHT EMITTING DISPLAY DEVICE AND HEAD MOUNTED DISPLAY SYSTEM HAVING THE SAME

• US 20180018917A1
• Filed: 07/13/2017
• Published: 01/18/2018
• Est. Priority Date: 07/15/2016
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: YOO, Young-Wook, LIM, Jae-Keun, NOH, Jin-Woo, PARK, Ji-Eun, CHOI, Sung-Jin, KAMAL, Hassan
• Granted Patent: US 10,276,091 B2
• Time in Patent Office: Days
• CPC Class Codes: G02B 2027/0138 comprising image capture systems, e.g. camera
• CPC Class Codes: G02B 2027/014 comprising information/image processing systems
• CPC Class Codes: G02B 2027/0178 Eyeglass type eyeglass details G02C
• CPC Class Codes: G02B 2027/0187 slaved to motion of at least a part of the body of the user, e.g. head, eye
• CPC Class Codes: G02B 27/0093 with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking
• CPC Class Codes: G02B 27/017 Head mounted
• CPC Class Codes: G06F 3/013 Eye tracking input arrangements G06F3/015 takes precedence
• CPC Class Codes: G06F 3/147 using display panels
• CPC Class Codes: G06V 40/19 Sensors therefor
• CPC Class Codes: G06V 40/193 Preprocessing; Feature extraction
• CPC Class Codes: G09G 2300/0426 Layout of electrodes and connections
• CPC Class Codes: G09G 2300/0819 used for counteracting undesired variations, e.g. feedback or autozeroing
• CPC Class Codes: G09G 2300/0852 being a dynamic memory with more than one capacitor
• CPC Class Codes: G09G 2300/0861 with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes
• CPC Class Codes: G09G 2310/08 Details of timing specific for flat panels, other than clock recovery
• CPC Class Codes: G09G 2320/0261 in the context of movement of objects on the screen or movement of the observer relative to the screen
• CPC Class Codes: G09G 2320/045 Compensation of drifts in the characteristics of light emitting or modulating elements
• CPC Class Codes: G09G 2330/021 Power management, e.g. power saving
• CPC Class Codes: G09G 2330/023 using energy recovery or conservation
• CPC Class Codes: G09G 2354/00 Aspects of interface with display user
• CPC Class Codes: G09G 2360/145 : the light originating from the display screen
• CPC Class Codes: G09G 3/3225 : using an active matrix
• CPC Class Codes: G09G 3/3233 : with pixel circuitry controlling the current through the light-emitting element
• CPC Class Codes: G09G 3/3266 : Details of drivers for scan electrodes
• CPC Class Codes: G09G 3/3275 : Details of drivers for data electrodes
• CPC Class Codes: G09G 5/00 : Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators image data processing or generation, in general G06T
• CPC Class Codes: H04N 13/341 : using temporal multiplexing

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.

Claims

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.

2. The head mounted display system of claim 1, 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.

3. The head mounted display system of claim 2, wherein a thickness of the first emission layer is greater than a thickness of the second emission layer.

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

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

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 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.

8. The head mounted display system of claim 7, wherein the data driver provides the data signals that are substantially the same as each other to the infrared pixels.

9. The head mounted display system of claim 7, 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.

10. 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.

11. 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.

12. 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.

13. 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.

14. The display device of claim 13, wherein a thickness of the first emission layer is greater than a thickness of the second emission layer.

15. The display device of claim 13, wherein the infrared emission region is adjacent to at least one side of the display region.

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

17. 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.

18. The display device of claim 17, 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.

19. The display device of claim 18, wherein the data driver provides the data signals that are substantially the same as each other to the infrared pixels.

20. The display device of claim 18, 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.