ORGANIC EMITTING DEVICE

• US 20100156279A1
• Filed: 06/19/2009
• Published: 06/24/2010
• Est. Priority Date: 12/19/2008
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Tamura, Shinichiro, Lee, Sung-Hun
• Granted Patent: US 8,049,420 B2
• Time in Patent Office: Days
• US Class Current: 313/504
• CPC Class Codes: H10K 50/852 comprising a resonant cavity structure, e.g. Bragg reflector pair
• CPC Class Codes: H10K 59/12 Active-matrix OLED [AMOLED] displays
• CPC Class Codes: H10K 59/131 Interconnections, e.g. wiring lines or terminals
• CPC Class Codes: H10K 59/35 comprising red-green-blue [RGB] subpixels
• CPC Class Codes: H10K 59/38 comprising colour filters or colour changing media [CCM]
• CPC Class Codes: H10K 59/876 comprising a resonant cavity structure, e.g. Bragg reflector pair

Abstract

An organic light emitting device according to an exemplary embodiment of the present invention includes: a substrate including a first region, a second region, and a third region; a thin film structure disposed on the substrate; a first color filter, a second color filter, and a third color filter formed on the thin film structure, and respectively corresponding to the first region, the second region, and the third region; a first light emitting member formed on the first region and the second region; and a second light emitting member disposed on the third region, wherein the first light emitting member has a maximum light emitting value in a wavelength range of about 500 nm to 800 nm, and the second light emitting member has a maximum light emitting value in a wavelength range of about 400 nm to 500 nm.

Claims

1. An organic light emitting device comprising:

a substrate including a first region, a second region, and a third region;

a thin film structure disposed on the substrate;

a first color filter, a second color filter, and a third color filter formed on the thin film structure, and respectively corresponding to the first region, the second region, and the third region;

a first light emitting member formed on the first region and the second region; and

a second light emitting member disposed on the third region,

wherein the first light emitting member has a maximum light emitting value in a wavelength range of about 500 nm to 800 nm, and

the second light emitting member has a maximum light emitting value in a wavelength range of about 400 nm to 500 nm.

2. The organic light emitting device of claim 1, wherein

the first light emitting member has a maximum light emitting value in two wavelength ranges of about 500 nm to 550 nm and about 580 nm to 640 nm.

3. The organic light emitting device of claim 2, wherein

the first light emitting member includes a first sub-light-emitting member having a maximum light emitting value in a wavelength range of about 500 nm to 550 nm, and a second sub light-emitting member having the maximum light emitting value in a wavelength range of about 580 nm to 640 nm.

4. The organic light emitting device of claim 3, wherein

the first sub-light-emitting member and the second sub-light-emitting member are sequentially deposited.

5. The organic light emitting device of claim 1, wherein

the first light emitting member emits an orange color.

6. The organic light emitting device of claim 5, wherein

the first light emitting member includes a first sub-light emitting member emitting red and a second sub light-emitting member emitting green.

7. The organic light emitting device of claim 1, wherein

the plane area occupied by the first light emitting member is almost the same as the plane area occupied by the second light emitting member.

8. The organic light emitting device of claim 1, wherein

the plane area occupied by the first light emitting member is different from the plane area occupied by the second light emitting member.

9. The organic light emitting device of claim 8, wherein

the plane area occupied by the first light emitting member is about two times the plane area occupied by the second light emitting member.

10. The organic light emitting device of claim 1, wherein

the second light emitting member has a maximum light emitting value at a wavelength of about 460 nm.

11. The organic light emitting device of claim 1, wherein

the second light emitting member emits blue.

12. The organic light emitting device of claim 1, further comprising:

an insulating layer formed on the first color filter, the second color filter, and the third color filter, and the thin film structure;

a first transflective member, a second transflective member, and a third transflective member disposed on the insulating layer, and respectively formed in the first region, the second region, and the third region;

an assistance member disposed on the first transflective member;

a first pixel electrode, a second pixel electrode, and a third pixel electrode respectively formed on the assistance member, the second transflective member, and the third transflective member; and

a common electrode formed on the first organic light emitting member and the second organic light emitting member.

13. The light emitting device of claim 12, wherein

the first organic light emitting member is thicker than the second organic light emitting member.

14. The light emitting device of claim 12, wherein

the assistance member, and the first pixel electrode, the second pixel electrode, and the third pixel electrode are formed with the same layer.

15. The organic light emitting device of claim 1, wherein

the first color filter, the second color filter, and the third color filter are respectively a red filter, a green filter, and a blue filter.

16. The organic light emitting device of claim 1, wherein

the second light emitting member is disposed on the first region and the second region.