ORGANIC LIGHT EMITTING DIODE (OLED) DISPLAY APPARATUS HAVING LIGHT SENSING FUNCTION

• US 20120176298A1
• Filed: 11/15/2011
• Published: 07/12/2012
• Est. Priority Date: 01/10/2011
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: SUH, Sung Joo, YI, Kwon Ju, PARK, Du Sik, CHOI, Chang Kyu
• Granted Patent: US 9,450,033 B2
• Time in Patent Office: Days
• US Class Current: 345/82
• CPC Class Codes: G09G 2300/0439 Pixel structures
• CPC Class Codes: G09G 2300/046 with an emissive area and a light-modulating area combined in one pixel
• CPC Class Codes: G09G 3/2003 Display of colours specific for liquid crystal displays G09G3/3607
• CPC Class Codes: G09G 3/3208 organic, e.g. using organic light-emitting diodes [OLED]
• CPC Class Codes: G09G 3/3225 using an active matrix
• CPC Class Codes: H04N 7/144 camera and display on the same optical axis, e.g. optically multiplexing the camera and display for eye to eye contact
• CPC Class Codes: H10K 59/65 OLEDs integrated with inorganic image sensors

Abstract

An organic light emitting diode (OLED) display apparatus having an optical sensing function is provided. The OLED display apparatus may photograph an external object by sensing input light from the external object that passes through an imaging pattern included in a display panel.

Claims

1. An organic light emitting diode (OLED) display apparatus having a light sensing function, comprising:

a display panel comprising an imaging pattern formed with a plurality of OLED pixels; and

a sensor panel comprising at least one sensor to sense input light from an external object, the light passing through the imaging pattern.

2. The OLED display apparatus of claim 1, wherein the display panel forms the imaging pattern by arranging each of the plurality of OLED pixels based on transparency level of a window included in a corresponding OLED pixel.

3. The OLED display apparatus of claim 2, wherein the display panel forms the imaging pattern to be in one of a circular hole, a polygonal hole, and a modified uniformly redundant array (MURA) by combining a first OLED pixel comprising an opaque window with a second OLED pixel comprising a transparent window.

4. The OLED display apparatus of claim 1, wherein:

each of the OLED pixels comprises a light emitter to emit one of a red light, a green light, and a blue light, and

the display panel enables the sensor panel to sense the external object by simultaneously displaying an image using the light emitter, and by passing the input light through the imaging pattern.

5. The OLED display apparatus of claim 1, further comprising:

an infrared ray light source to emit an infrared ray towards the external object; and

a pass filter to extract an infrared component from the input light comprising the infrared ray returned from the external object,

wherein the sensor panel senses the infrared component.

6. The OLED display apparatus of claim 1, further comprising:

an infrared ray light source included in each of the OLED pixels to emit an infrared ray towards the external object; and

a pass filter included in each of the OLED pixels to extract an infrared component from the input light comprising the infrared ray returned from the external object, and to transfer the extracted infrared component to the imaging pattern,

wherein the sensor panel senses the infrared component passing through the imaging pattern.

7. The OLED display apparatus of claim 1, further comprising:

an infrared ray light source included in each of the OLED pixels to emit an infrared ray towards the external object; and

a pass filter to extract an infrared component from the input light comprising the infrared ray returned from the external object,

wherein the sensor panel senses the infrared component.

8. The OLED display apparatus of claim 1, wherein the imaging pattern is formed by adjusting a transparency of at least one window included in each of the OLED pixels.

9. An organic light emitting diode (OLED) display apparatus having a light sensing function, the apparatus comprising:

a display panel comprising an imaging pattern formed with a plurality of OLED pixels; and

a sensor panel disposed behind the display panel and comprising at least one sensor to sense light that has passed through the imaging pattern.

10. The OLED display apparatus of claim 9, wherein the imaging pattern is formed by adjusting a transparency of at least one window included in each of the OLED pixels.

11. The OLED display apparatus of claim 9, further comprising:

an infrared ray light source to emit an infrared ray towards the external object; and

a pass filter to extract an infrared component from the input light comprising the infrared ray returned from the external object,

wherein the sensor panel senses the extracted infrared component.

12. The OLED display apparatus of claim 11, wherein the pass filter is disposed between the display panel and the sensor panel.