Transparent Organic Light Emitting Diode Lighting Device

• US 20100237374A1
• Filed: 03/19/2010
• Published: 09/23/2010
• Est. Priority Date: 03/20/2009
• Status: Abandoned Application

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: Lee, Jeong Ik, CHU, Hye Yong, Lee, Jong Hee, Cho, Kyoung Ik
• Application Number:
  US12/727,632
• Publication Number:
  US 20100237374A1
• Time in Patent Office: Days
• US Class Current: 257/98
• CPC Class Codes: H01L 31/056 the light-reflecting means being of the back surface reflector [BSR] type
• CPC Class Codes: H02S 40/38 Energy storage means, e.g. batteries, structurally associated with PV modules
• CPC Class Codes: H10K 2102/3026 Top emission
• CPC Class Codes: H10K 2102/3031 Two-side emission, e.g. transparent OLEDs [TOLED]
• CPC Class Codes: H10K 50/81 Anodes
• CPC Class Codes: H10K 50/818 Reflective anodes, e.g. ITO combined with thick metallic layers
• CPC Class Codes: H10K 50/856 comprising reflective means
• CPC Class Codes: H10K 59/60 OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
• CPC Class Codes: H10K 65/00 Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element and at least one organic radiation-sensitive element, e.g. organic opto-couplers organic image sensors integrated with organic light-emitting devices H10K39/34; OLED displays integrated with photosensors H10K59/13
• CPC Class Codes: Y02E 10/52 PV systems with concentrators
• CPC Class Codes: Y02E 70/30 Systems combining energy storage with energy generation of non-fossil origin

Abstract

Provided is a transparent organic light emitting diode (OLED) lighting device in which opaque metal reflectors are formed to adjust light emitting directions. The transparent OLED lighting device includes a transparent substrate, a transparent anode formed on a predetermined region of the transparent substrate, a reflective anode formed adjacent to the transparent anode on another region of the transparent substrate, an organic layer formed on the transparent and reflective anodes, and a transparent cathode and an encapsulation substrate sequentially stacked on the organic layer. Directions of light emitted from the organic layer vary depending on the current applied to the transparent and reflective anodes.

Claims

1. A transparent organic light emitting diode (OLED) lighting device comprising:

a transparent substrate;

a transparent anode formed on a predetermined region of the transparent substrate;

a reflective anode formed adjacent to the transparent anode on another region of the transparent substrate;

an organic layer formed on the transparent and reflective anodes; and

a transparent cathode and an encapsulation substrate sequentially stacked on the organic layer,

wherein the organic layer emits light, directions of which are controlled according to a current applied to the transparent and reflective anodes.

2. The transparent OLED lighting device according to claim 1, further comprising a solar cell formed on one region of a lower surface of the transparent substrate.

3. The transparent OLED lighting device according to claim 2, wherein the solar cell is formed to be symmetrical with respect to the reflective anode formed on the transparent substrate.

4. The transparent OLED lighting device according to claim 1, further comprising a sensor formed on a region below the transparent substrate.

5. The transparent OLED lighting device according to claim 4, wherein the sensor is formed on a region to be symmetrical with the reflective anode formed on the transparent substrate.

6. The transparent OLED lighting device according to claim 1, wherein the transparent and reflective anodes formed on the transparent substrate are formed at a predetermined ratio in an alternating pattern.

7. The transparent OLED lighting device according to claim 1, wherein the current is independently supplied to the transparent and reflective anodes formed on the transparent substrate through different lines, respectively.

8. The transparent OLED lighting device according to claim 1, wherein when the current is applied to the transparent anode, the light is emitted to one region of a lower surface of the transparent substrate which are symmetrical with respect to the transparent anode, and one region of an upper surface of the encapsulation substrate.

9. The transparent OLED lighting device according to claim 1, wherein when the current is applied to the reflective anode, the light is emitted to one region of an upper surface of the encapsulation substrate which are symmetrical with respect to the reflective anode.

10. The transparent OLED lighting device according to claim 1, wherein when the current is applied to the transparent and reflective anodes, the light is emitted to one region of a lower surface of the transparent substrate which are symmetrical with respect to the transparent anode, and an entire upper surface of the encapsulation substrate.

11. The transparent OLED lighting device according to claim 1, wherein the transparent substrate and the encapsulation substrate are formed of glass or plastic.

12. The transparent OLED lighting device according to claim 1, wherein the reflective anode is formed of silver (Ag) or aluminum (Al).

13. A transparent organic light emitting diode (OLED) lighting device comprising:

a transparent substrate;

a transparent anode formed on the transparent substrate;

an organic layer formed on the transparent anode;

a transparent cathode and an encapsulation substrate sequentially formed on the organic layer; and

a metal reflector formed on one region of a lower or upper surface of the encapsulation substrate,

wherein the organic layer emits light, which is reflected from the metal reflector.

14. The transparent OLED lighting device according to claim 13, further comprising a solar cell formed on one region of the upper surface of the encapsulation substrate.

15. The transparent OLED lighting device according to claim 14, wherein the solar cell is formed to be symmetrical with respect to the metal reflector formed under the encapsulation substrate.

16. The transparent OLED lighting device according to claim 13, further comprising a sensor formed on a region of the encapsulation substrate.

17. The transparent OLED lighting device according to claim 16, wherein the sensor is formed on a region to be symmetrical with the metal reflectors formed below the encapsulation substrate.

18. The transparent OLED lighting device according to claim 13, wherein when a current is applied to the transparent anode and the transparent cathode, the light is emitted to an entire lower surface of the transparent substrate and one region of the upper surface of the encapsulation substrate which have no metal reflectors.

19. The transparent OLED lighting device according to claim 13, wherein the transparent substrate and the encapsulation substrate are formed of glass or plastic.

20. The transparent OLED lighting device according to claim 13, wherein the metal reflector is formed of silver (Ag) or aluminum (Al).