ORGANIC LIGHT EMITTING DISPLAY APPARATUS

• US 20100148163A1
• Filed: 12/11/2009
• Published: 06/17/2010
• Est. Priority Date: 12/11/2008
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Kim, Kyoung-Bo, Kim, Kwang-Hae, Kim, Moo-Jin, Doh, Sung-Won, Oh, Jun-Sik, Im, Ki-Ju, Park, Yong-Woo, Kim, Gun-Shik, Park, Yong-Sung, Yoon, Han-Hee
• Granted Patent: US 8,183,562 B2
• Time in Patent Office: Days
• US Class Current: 257/40
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/042 by opto-electronic means
• CPC Class Codes: H10K 59/126 Shielding, e.g. light-blocking means over the TFTs
• CPC Class Codes: H10K 59/13 comprising photosensors that control luminance
• CPC Class Codes: H10K 59/60 OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes

Abstract

An organic light emitting display apparatus includes an organic light emitting diode, a photo sensor, and a light blocking portion. The light blocking portion is at at least a side of the photo sensor so that light emitted from the organic light emitting diode is not directly incident on the photo sensor.

Claims

1. An organic light emitting display apparatus comprising:

an organic light emitting diode, a photo sensor, and a light blocking portion,

wherein the light blocking portion is at at least a side of the photo sensor so that light emitted from the organic light emitting diode is not directly incident on the photo sensor.

2. The organic light emitting display apparatus of claim 1, wherein the light blocking portion is on a path through which the light emitted from the organic light emitting diode would be directly incident on the photo sensor.

3. The organic light emitting display apparatus of claim 1, further comprising a plurality of organic light emitting diodes and a plurality of photo sensors that are alternately arranged, and a plurality of light blocking portions, wherein one of the light blocking portions is between a respective one of the light emitting diodes and a respective one of the photo sensors.

4. An organic light emitting display apparatus comprising:

at least one thin film transistor on a substrate and comprising a semiconductor active layer, a gate electrode that is insulated from the semiconductor active layer, and source and drain electrodes each contacting the semiconductor active layer;

at least one photo sensor, each photo sensor at at least a side of a respective one of the at least one thin film transistor and for detecting incident light thereon;

a plurality of pixel electrodes on the at least one thin film transistor and

a plurality of pixel definition layers, each pixel definition layer between respective ones of the pixel electrodes;

a plurality of organic layers on the pixel electrodes and the pixel definition layers; and

a plurality of counter electrodes on the organic layers and the pixel definition layers,

wherein a plurality of holes are in the pixel definition layers to expose respective said plurality of organic layers.

5. The organic light emitting display apparatus of claim 4, wherein the counter electrodes are along the plurality of holes of the pixel definition layers.

6. The organic light emitting display apparatus of claim 5, wherein some of light rays emitted from the organic layers are reflected on the counter electrodes along the plurality of holes of the pixel definition layers.

7. The organic light emitting display apparatus of claim 4, wherein each of the plurality of holes is arranged on a path through which light emitted from a respective one of the organic layers would be directly incident on the at least one photo sensor.

8. The organic light emitting display apparatus of claim 7, wherein each of the counter electrodes along the holes prevents light emitted from a respective one of the organic layers from being directly incident on the photo sensor.

9. The organic light emitting display apparatus of claim 4, wherein the organic layers and the at least one photo sensor are alternately arranged, and each of the plurality of holes is between a respective one of the organic layers and a respective one of the at least one photo sensor.

10. The organic light emitting display apparatus of claim 4, wherein the plurality of organic layers surround the photo sensors, and the plurality of holes surround the photo sensors and are between the photo sensors and the organic layers.

11. An organic light emitting display apparatus comprising:

an organic light emitting diode, a photo sensor, and a light blocking portion,

wherein the light blocking portion is at at least a side of the photo sensor so as to block light emitted from the organic light emitting diode from being directly incident on the photo sensor.

12. The organic light emitting display apparatus of claim 11, wherein the light blocking portion is on a path through which the light emitted from the organic light emitting diode would be directly incident on the photo sensor.

13. The organic light emitting display apparatus of claim 11, further comprising a plurality of organic light emitting diodes and a plurality of photo sensors that are alternately arranged, and a plurality of light blocking portions, wherein one of the light blocking portions is between a respective one of the light emitting diodes and a respective one of the photo sensors.