IP Library › Granted Patent US 9,093,660
Granted Patent B2
US 9,093,660 · App. 13/717,956 · Granted Jul 28, 2015

Organic light emitting diode display device

Inventors: Hee-Seok Yang (Gyeonggi-do, KR); Choong-Keun Yoo (Gyeonggi-do, KR)
Assignee: LG Display Co., Ltd.
H01L51/5221H01L51/5281H01L51/5284H01L27/3244H01L27/3258
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Quick Facts
Patent No.
US 9,093,660
App. No.
13/717,956
Granted
Jul 28, 2015
Kind
B2
Abstract

An organic light emitting diode display device includes: a substrate defining a plurality of pixels having a luminous area and a non-luminous area; an antireflection layer formed on the substrate and including at least one metallic layer and at least one insulating layer; a thin film transistor formed on the antireflection layer in the non-luminous area and including a gate electrode or a metal line on the antireflection layer in the non-luminous area; a passivation layer formed on the thin film transistor; a color refiner formed on the passivation layer in the luminous area; a light blocking member on the passivation layer in the non-luminous area; an organic light emitting layer; and a cathode and an anode electrodes.

Claims (48)

1. An organic light emitting diode display device, comprising:

a substrate defining a plurality of pixels having a luminous area and a non-luminous area;

an antireflection layer formed on the substrate and including at least one metallic layer and at least one insulating layer;

a metal line on the antireflection layer in the non-luminous area;

a passivation layer formed on the metal line;

a color refiner formed on the passivation layer in the luminous area;

a light blocking member formed on the passivation layer in the non-luminous area;

an organic light emitting layer; and

a cathode and an anode electrodes,

wherein the light blocking member includes a light blocking layer, which is formed of the same material as the color refiner,

wherein the antireflection layer reflects some of the light from outside to be a first reflection light and transmits some of the light from outside to the metal line, and the metal line reflects the transmitted light from the antireflection layer to be a second reflection light, and

wherein the light blocking member is spaced apart from and non-continuous with the color refiner; and wherein a portion of a planarization layer is disposed between the light blocking member and the color refiner.

2. The organic light emitting diode display device according to claim 1 , wherein the light blocking layer is formed of the same material as a blue color refiner.

3. The organic light emitting diode display device according to claim 1 , wherein the light blocking member includes a plurality of light blocking layers, each having different colors from each other, and at least one of the plurality of light blocking layers is formed of the same material as the color refiner.

4. The organic light emitting diode display device according to claim 1 , wherein the color refiner formed on the passivation layer in the luminous area has one color selected from a group consisting of red, green, blue, yellow, magenta, and cyan.

5. The organic light emitting diode display device according to claim 3 , wherein the plurality of light blocking layers comprise red, green, and blue light blocking layers or comprise yellow, magenta, and cyan light blocking layers.

6. The organic light emitting diode display device according to claim 1 , wherein the antireflection layer covers the entire substrate.

7. The organic light emitting diode display device according to claim 1 , wherein the color refiner is positioned in an area corresponding to an area where the organic light emitting layer contacts the anode electrode and the cathode electrode.

8. The organic light emitting diode display device according to claim 1 , wherein the metal line comprises a gate electrode of a thin film transistor, a gate line, and a compensation circuit line.

9. The organic light emitting diode display device according to claim 8 , wherein the metal line further comprises a data line, a source electrode, and/or a drain electrode.

10. An organic light emitting diode display device, comprising:

a substrate having a plurality of pixels divided into a emitting region and a non-emitting region;

a driving element, on the substrate in the non-emitting region, including a thin film transistor and metal lines;

an antireflection part between the substrate and the driving element, minimizing the reflection of light from outside;

a passivation layer configured to protect the driving element, over the substrate;

a color refiner on the passivation layer in the emitting region;

an organic light emitting element on the substrate in the emitting region and including an anode, an organic light emitting layer, and a cathode; and

a light absorbing part, on the passivation layer in the non-emitting region, absorbing the light through the driving element,

wherein the light absorbing part is spaced apart from and non-continuous with the color color refiner; and wherein a portion of a planarization layer is disposed between the light absorbing part and the color refiner.

11. The organic light emitting diode display device according to claim 10 , wherein the antireflection part comprises:

a metallic layer on the substrate and configured to reflect some of the light from outside to be a first reflection light and to transmit some of the light from outside; and

an insulation layer on the metallic layer that transmits some of the transmitted light from the metallic layer.

12. The organic light emitting diode display device according to claim 11 , wherein the metallic layer and the insulation layer are stacked on the substrate.

13. The organic light emitting diode display device according to claim 11 , wherein the metallic layer is partially transmitting materials and has a thickness from about 50 Å to about 200 Å.

14. The organic light emitting diode display device according to claim 11 , wherein the insulation layer is inorganic material and has a thickness from about 500 Å to about 3000 Å.

15. The organic light emitting diode display device according to claim 11 , wherein the metal lines are disposed on the insulation layer and reflect the transmitted light from the metallic layer to be a second reflection light.

16. The organic light emitting diode display device according to claim 11 , wherein the metal lines are disposed on the insulation layer and reflect the transmitted light from the metallic layer to be a second reflection light, and wherein the first reflection light and the second reflection light have a phase difference of λ/2 to occur destructive interference.

17. The organic light emitting diode display device according to claim 10 , wherein the light absorbing part includes a plurality of color refiner layers having different colors from each other.

18. An apparatus comprising:

a substrate defined to have a luminous area and a non-luminous area, said luminous area comprising an organic light emitting layer and a color refiner that converts light emitted from said organic light emitting layer; and

a structure comprising an anti-reflection member and a light blocking member, on said substrate, said structure being configured to reduce undesired light reflections from affecting said luminous area without having a polarizer attached to said substrate,

said anti-reflection member in said non-luminous area, and

said light blocking member, that is spaced apart from and non-continuous with said color refiner, only in said non-luminous area above said anti-reflection member; and wherein a portion of a planarization layer is disposed between the light blocking member and the color refiner.

19. The apparatus of claim 18 , further comprising: a passivation layer on said substrate in said luminous area and in said non-luminous area, wherein said color refiner is on said passivation layer in said luminous area, and said light blocking member is on said passivation layer in said non-luminous area, and said anti-reflection member is under said passivation layer.

20. The apparatus of claim 18 , wherein said anti-reflection member is configured as a multi-layered structure having a particular number of layers depending upon anti-reflection effects to be achieved in view of light transmittance characteristics.

21. The apparatus of claim 18 , wherein said anti-reflection member is additionally in said luminous area.

22. The apparatus of claim 18 , wherein said light blocking member is configured as a single or multi-layered structure having a particular number of layers depending upon light blocking effects to be achieved.

23. The apparatus of claim 18 , further comprising: a pixel electrode above said color refiner with said planarization layer therebetween.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 18, 2012
From: YANG, HEE-SEOK; YOO, CHOONG-KEUN
To: LG DISPLAY CO., LTD.
Reel/Frame 029492/0059 →
Priority Claims (1)
KR 10-2012-0086242 · Aug 7, 2012 · national
Continuity (1)
Related Publication 20140042396A1 · Feb 13, 2014