Light-emitting panel, display device and electronic equipment
View Patent ↗Disclosed herein is a light-emitting panel including: an organic electroluminescence element adapted to emit electroluminescence light toward a transparent substrate; a pixel circuit formed on the transparent substrate and adapted to drive the organic electroluminescence element; a color filter formed not only between the transparent substrate and organic electroluminescence element but also immediately on or above the pixel circuit; and a conductive layer formed between the pixel circuit and color filter, the conductive layer being more conductive than the color filter.
1. A light-emitting panel comprising:
an organic electroluminescence element adapted to emit electroluminescence light toward a transparent substrate;
a pixel circuit formed on the transparent substrate and adapted to drive the organic electroluminescence element;
a color filter formed not only between the transparent substrate and organic electroluminescence element but also immediately on or above the pixel circuit; and
a conductive layer formed between the pixel circuit and the color filter, the conductive layer being more conductive than the color filter, wherein
the pixel circuit includes a holding capacitor, a first transistor adapted to write a predetermined voltage to the holding capacitor, and a second transistor adapted to drive the organic electroluminescence element based on the voltage of the holding capacitor,
the color filter is formed immediately on or above the first transistor, and
the conductive layer is formed between the first transistor and color filter.
2. The light-emitting panel of claim 1 , wherein the first transistor has a gate, source, drain and channel, and the conductive layer covers part of the channel of all the region of the first transistor opposed to the color filter.
3. The light-emitting panel of claim 2 , wherein the conductive layer covers at least the terminal, i.e., the channel, source or drain, on the opposite side of that externally supplied with a signal, of all the region of the first transistor opposed to the color filter.
4. The light-emitting panel of claim 1 , wherein the first transistor is insulated from the conductive layer by an insulating layer for isolation.
5. The light-emitting panel of claim 1 , wherein the conductive layer electrically floats.
6. The light-emitting panel of claim 1 , wherein the conductive layer is electrically connected to a conductive member different from the conductive layer so as to assume a predetermined potential.
7. The light-emitting panel of claim 1 , wherein the light-emitting panel has a bottom emission structure.
8. A display device comprising:
a display panel; and
a drive circuit adapted to drive the display panel, wherein, in each pixel, the
display panel includes an organic electroluminescence element adapted to emit electroluminescence light toward a transparent substrate, a pixel circuit formed on the transparent substrate and adapted to drive the organic electroluminescence element, a color filter formed not only between the transparent substrate and organic electroluminescence element but also immediately on or above the pixel circuit, and a conductive layer formed between the pixel circuit and the color filter, the conductive layer being more conductive than the color filter, wherein
the pixel circuit includes a holding capacitor, a first transistor adapted to write a predetermined voltage to the holding capacitor, and a second transistor adapted to drive the organic electroluminescence element based on the voltage of the holding capacitor,
the color filter is formed immediately on or above the first transistor, and
the conductive layer is formed between the first transistor and color filter.
9. The display device of claim 8 , wherein the display panel has a bottom emission structure.
10. The display device of claim 8 , wherein the first transistor has a gate, source, drain and channel, and the conductive layer covers part of the channel of all the region of the first transistor opposed to the color filter.
11. The display device of claim 8 , wherein the conductive layer covers at least the terminal, i.e., the channel, source or drain, on the opposite side of that externally supplied with a signal, of all the region of the first transistor opposed to the color filter.
12. The display device of claim 8 , wherein the first transistor is insulated from the conductive layer by an insulating layer for isolation.
13. The display device of claim 8 , wherein the conductive layer electrically floats.
14. The display device of claim 8 , wherein the conductive layer is electrically connected to a conductive member different from the conductive layer so as to assume a predetermined potential.
15. Electronic equipment comprising:
a display device, the display device including,
a display panel, and
a drive circuit adapted to drive the display panel,
wherein, in each pixel, the display panel includes
an organic electroluminescence element adapted to emit electroluminescence light toward a transparent substrate,
a pixel circuit formed on the transparent substrate and adapted to drive the organic electroluminescence element,
a color filter formed not only between the transparent substrate and organic electroluminescence element but also immediately on or above the pixel circuit, and
a conductive layer formed between the pixel circuit and the color filter, the conductive layer being more conductive than the color filter, wherein
the pixel circuit includes a holding capacitor, a first transistor adapted to write a predetermined voltage to the holding capacitor, and a second transistor adapted to drive the organic electroluminescence element based on the voltage of the holding capacitor,
the color filter is formed immediately on or above the first transistor, and
the conductive layer is formed between the first transistor and color filter.
16. The electronic equipment of claim 15 , wherein the display panel has a bottom emission structure.
17. The electronic equipment of claim 16 , wherein the first transistor has a gate, source, drain and channel, and the conductive layer covers part of the channel of all the region of the first transistor opposed to the color filter.
18. The electronic equipment of claim 17 , wherein the conductive layer covers at least the terminal, i.e., the channel, source or drain, on the opposite side of that externally supplied with a signal, of all the region of the first transistor opposed to the color filter.
19. The electronic equipment of claim 15 , wherein the first transistor is insulated from the conductive layer by an insulating layer for isolation.
20. The electronic equipment of claim 15 , wherein the conductive layer electrically floats.
21. The electronic equipment of claim 15 , wherein the conductive layer is electrically connected to a conductive member different from the conductive layer so as to assume a predetermined potential.