Organic light-emitting diode display device and display panel
View Patent ↗An organic light-emitting diode display device is provided, including an anode layer, a cathode layer, a first light-emitting layer, and a second light-emitting layer disposed between the anode layer and the cathode layer, wherein the first light-emitting layer comprises a first light-emitting part, a second light-emitting part, and a third light-emitting part arranged side-by-side, the second light-emitting layer is configured to emit light of a same color as light emitted from the first light-emitting part, and the organic light-emitting diode display device further includes a charge generating layer disposed between the second light-emitting layer and the first light-emitting part.
1. An organic light-emitting diode display device, comprising an anode layer, a cathode layer, and a first light-emitting layer and a second light-emitting layer disposed between the anode layer and the cathode layer, wherein the first light-emitting layer comprises a first light-emitting part, a second light-emitting part, and a third light-emitting part arranged side-by-side, the second light-emitting layer is configured to emit light of a same color as light emitted from the first light-emitting part, and the organic light-emitting diode display device further comprises a charge generating layer disposed between the second light-emitting layer and the first light-emitting part, and no charge generating layer is disposed between the second light-emitting layer and the second light-emitting part as well as between the second light-emitting layer and the third light-emitting part.
2. The organic light-emitting diode display device of claim 1 , wherein the charge generating layer comprises a first charge generating layer and a second charge generating layer disposed in a stack, the first charge generating layer is disposed close to a side of the anode layer, the second charge generating layer is disposed close to a side of the cathode layer, a material of the first charge generating layer comprises a P-type doped hole transport material, and a material of the second charge generating layer comprises an N-type doped electron transport material.
3. The organic light-emitting diode display device of claim 1 , wherein an orthogonal projection of the first light-emitting part projected on the charge generating layer covers the charge generating layer.
4. The organic light-emitting diode display device of claim 1 , wherein the second light-emitting layer is disposed between the cathode layer and the first light-emitting layer, and a highest occupied molecular orbital energy level of the second light-emitting layer is less than a highest occupied molecular orbital energy level of the first light-emitting part.
5. The organic light-emitting diode display device of claim 4 , wherein a material of the second light-emitting layer comprises an electron-transmission type light-emitting material, and a material of the first light-emitting part comprises a hole-transmission type light-emitting material.
6. The organic light-emitting diode display device of claim 1 , wherein the second light-emitting layer is disposed between the anode layer and the first light-emitting layer, and a highest occupied molecular orbital energy level of the second light-emitting layer is greater than a highest occupied molecular orbital energy level of the first light-emitting part.
7. The organic light-emitting diode display device of claim 6 , wherein a material of the second light-emitting layer comprises a hole-transmission type light-emitting material, and a material of the first light-emitting part comprises an electron-transmission type light-emitting material.
8. The organic light-emitting diode display device of claim 1 , wherein a first triplet excited state energy level of the second light-emitting layer is greater than a first triplet excited state energy level of the second light-emitting part and a first triplet excited state energy level of the third light-emitting part.
9. The organic light-emitting diode display device of claim 1 , wherein the organic light-emitting diode display device comprises a hole injection layer and a hole transport layer disposed between the anode layer and the first light-emitting layer, and an electron transport layer disposed between the cathode layer and the first light-emitting layer.
10. A display panel, comprising an organic light-emitting diode display device, comprising an anode layer, a cathode layer, and a first light-emitting layer and a second light-emitting layer disposed between the anode layer and the cathode layer, wherein the first light-emitting layer comprises a first light-emitting part, a second light-emitting part, and a third light-emitting part arranged side-by-side, the second light-emitting layer is configured to emit light of a same color as light emitted from the first light-emitting part, and the organic light-emitting diode display device further comprises a charge generating layer disposed between the second light-emitting layer and the first light-emitting part, and no charge generating layer is disposed between the second light-emitting layer and the second light-emitting part as well as between the second light-emitting layer and the third light-emitting part.
11. The display panel of claim 10 , wherein the charge generating layer comprises a first charge generating layer and a second charge generating layer disposed in a stack, the first charge generating layer is disposed close to a side of the anode layer, the second charge generating layer is disposed close to a side of the cathode layer, a material of the first charge generating layer comprises a P-type doped hole transport material, and a material of the second charge generating layer comprises an N-type doped electron transport material.
12. The display panel of claim 10 , wherein an orthogonal projection of the first light-emitting part projected on the charge generating layer covers the charge generating layer.
13. The display panel of claim 10 , wherein the second light-emitting layer is disposed between the cathode layer and the first light-emitting layer, and a highest occupied molecular orbital energy level of the second light-emitting layer is less than a highest occupied molecular orbital energy level of the first light-emitting part.
14. The display panel of claim 13 , wherein a material of the second light-emitting layer comprises an electron-biased type light-emitting material, and a material of the first light-emitting part comprises a hole-transmission type light-emitting material.
15. The display panel of claim 10 , wherein the second light-emitting layer is disposed between the anode layer and the first light-emitting layer, and a highest occupied molecular orbital energy level of the second light-emitting layer is greater than a highest occupied molecular orbital energy level of the first light-emitting part.
16. The display panel of claim 15 , wherein a material of the second light-emitting layer comprises a hole-transmission type light-emitting material, and a material of the first light-emitting part comprises an electron-transmission type light-emitting material.
17. The display panel of claim 10 , wherein a first triplet excited state energy level of the second light-emitting layer is greater than a first triplet excited state energy level of the second light-emitting part and the first triplet excited state energy level of the third light-emitting part.
18. The display panel of claim 10 , wherein the organic light-emitting display device comprises a hole injection layer, a hole transport layer disposed between the anode layer and the first light-emitting layer, and an electron transport layer disposed between the cathode layer and the first light-emitting layer.
19. The organic light-emitting diode display device of claim 1 , wherein the second light-emitting layer is configured to be planar.
20. The display panel of claim 10 , wherein the second light-emitting layer is configured to be planar.