Display device and electronic apparatus
View Patent ↗A display device includes: a dummy pixel provided on a display panel; a reflection film provided on a light-emitting-surface side of the display panel for reflecting light emitted from the dummy pixel; a photodetector provided on an opposite side of the display panel from the light-emitting surface for detecting the light emitted from the dummy pixel and reflected from the reflection film; and a correction circuit for correcting, based on the results of detection by the photodetector, the luminance of effective pixels that contribute to image display.
1. A display device comprising:
a dummy pixel on a display panel;
a reflection film on a light-emitting-surface side of the display panel for reflecting light emitted from the dummy pixel;
a transparent substrate on the light-emitting-surface side of the display panel;
a photodetector on a side of the display panel opposite to the light-emitting-surface side for detecting the light emitted from the dummy pixel and reflected from the reflection film; and
a correction circuit for correcting, based on results of detection by the photodetector, luminance of effective pixels that contribute to image display,
wherein,
the light emitted from the dummy pixel is reflected also from an interface of the transparent substrate and enters the photodetector,
the display device further comprises auxiliary wires arranged in a mesh and provided to a pixel array of the effective pixels arranged in a matrix for supplying a cathode potential to the effective pixels, and
the auxiliary wires are located to avoid a region where the dummy pixel is formed.
2. The display device according to claim 1 , wherein a component of a pixel adjacent to the dummy pixel is located to avoid an optical path of the light reflected from the reflection film and the interface of the transparent substrate to the photodetector.
3. The display device according to claim 2 , wherein the component of the pixel adjacent to the dummy pixel is an anode electrode of an electro-optic device of the pixel.
4. The display device according to claim 2 , wherein
the component of the pixel adjacent to the dummy pixel is a metal electrode of a transistor included in the pixel.
5. The display device according to claim 1 , wherein:
the display device further comprises a driver module on a rear side of the display panel for driving a pixel on the display panel, and
the photodetector is on the rear side of the display panel.
6. The display device according to claim 1 , wherein the photodetector is incorporated into the display panel.
7. An electronic apparatus comprising:
a display device including
a dummy pixel on a display panel,
a reflection film on a light-emitting-surface side of the display panel for reflecting light emitted from the dummy pixel,
a transparent substrate on the light-emitting-surface side of the display panel,
a photodetector on a side of the display panel opposite to the light-emitting-surface side for detecting the light emitted from the dummy pixel and reflected from the reflection film, and
a correction circuit for correcting, based on results of detection by the photodetector, luminance of effective pixels that contribute to image display,
wherein,
the light emitted from the dummy pixel is reflected also from an interface of the transparent substrate and enters the photodetector,
the display device further comprises auxiliary wires arranged in a mesh and provided to a pixel array of the effective pixels arranged in a matrix for supplying a cathode potential to the effective pixels, and
the auxiliary wires are located to avoid a region where the dummy pixel is formed.
8. An electronic apparatus comprising:
a dummy pixel on a display panel;
a reflection film on a light-emitting-surface side of the display panel;
a transparent substrate on the light-emitting-surface side of the display panel;
a photodetector on a side of the display panel opposite to the light-emitting-surface side for detecting the light emitted from the dummy pixel and reflected from the reflection film; and
a driver module on the side of the display panel opposite to the light-emitting-surface side for driving a pixel on the display panel,
wherein,
the light emitted from the dummy pixel is reflected also from an interface of the transparent substrate and enters the photodetector,
the display device further comprises auxiliary wires arranged in a mesh and provided to a pixel array of the effective pixels arranged in a matrix for supplying a cathode potential to the effective pixels, and
the auxiliary wires are located to avoid a region where the dummy pixel is formed.
9. The display device according to claim 1 , wherein:
the display device further comprises a passivation film,
the transparent substrate is between the passivation film and the reflection film, and
the interface of the transparent substrate corresponds to a joint between the transparent substrate and the passivation film.
10. The electronic apparatus according to claim 7 , wherein:
the display device further comprises a passivation film,
the transparent substrate is between the passivation film and the reflection film, and
the interface of the transparent substrate corresponds to a joint between the transparent substrate and the passivation film.
11. The electronic apparatus according to claim 8 , wherein:
the electronic apparatus further comprises a passivation film,
the transparent substrate is between the passivation film and the reflection film, and
the interface of the transparent substrate corresponds to a joint between the transparent substrate and the passivation film.
12. The display device according to claim 5 , wherein the photodetector is attached to the rear side of the display panel.