TW200506031A - White color group organic electroluminescent element - Google Patents
White color group organic electroluminescent elementInfo
- Publication number
- TW200506031A TW200506031A TW092121196A TW92121196A TW200506031A TW 200506031 A TW200506031 A TW 200506031A TW 092121196 A TW092121196 A TW 092121196A TW 92121196 A TW92121196 A TW 92121196A TW 200506031 A TW200506031 A TW 200506031A
- Authority
- TW
- Taiwan
- Prior art keywords
- light emitting
- emitting layer
- yellow
- red
- organic electroluminescent
- Prior art date
Links
- 239000002019 doping agent Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 238000005401 electroluminescence Methods 0.000 abstract 1
Landscapes
- Electroluminescent Light Sources (AREA)
Abstract
A white electroluminescence element (1) comprising an anode (2), a blue light emitting layer (5) containing a host material and a blue dopant, yellow through red light emitting layer (6) containing a host material identical to that of the blue light emitting layer (5) and a yellow through red dopant, and a cathode (8), formed sequentially in layers, wherein the light emitting layer is composed of the blue light emitting layer (5) and the yellow through red light emitting layer (6). In a type where the light emitting layer is divided into two, trend of color shift toward red can be canceled by employing the blue light emitting layer (5) on the anode (2) side where the light emitting region of the emitting layer has a trend to shift. Since the yellow through red light emitting layer (6) can be formed thick, variation of chromaticity can be suppressed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002076619A JP2003272857A (en) | 2002-03-19 | 2002-03-19 | White organic electroluminescent device |
| PCT/JP2003/009525 WO2005011333A1 (en) | 2003-07-28 | 2003-07-28 | White organic electroluminescence element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW200506031A true TW200506031A (en) | 2005-02-16 |
Family
ID=57798265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW092121196A TW200506031A (en) | 2002-03-19 | 2003-08-01 | White color group organic electroluminescent element |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TW200506031A (en) |
-
2003
- 2003-08-01 TW TW092121196A patent/TW200506031A/en unknown
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