Display device
A display device includes a display panel and at least one light modulation panel. The display panel includes a substrate and a plurality of micro light emitting semiconductors disposed on the substrate. The light modulation panel is disposed on a light emitting surface of the display panel and includes a light modulation unit. The light modulation panel is configured to change a transmittance of the light modulation unit according to a light modulation control signal.
1. A display device, comprising: a display panel comprising
a substrate and a plurality of micro light emitting semiconductors disposed on the substrate; and
at least one light modulation panel disposed on a light emitting surface of the display panel, the at least one light modulation panel comprising a light modulation unit, and the at least one light modulation panel being configured to change a transmittance of the light modulation unit according to a light modulation control signal, wherein:
the light modulation control signal drives the light modulation unit to a high transmittance state when an intensity of ambient light is greater than a predetermined intensity of ambient light and a drive current intensity in the plurality of micro light emitting semiconductors is less than a predetermined drive current intensity;
the light modulation control signal drives the light modulation unit to a low transmittance state when the intensity of ambient light is greater than the predetermined intensity of ambient light and the drive current intensity is greater than the predetermined drive current intensity;
the light modulation control signal drives the light modulation unit to the low transmittance state when the intensity of ambient light is less than the predetermined intensity of ambient light and the drive current intensity is less than the predetermined drive current intensity; and
the light modulation control signal drives the light modulation unit to the low transmittance state when the intensity of ambient light is less than the predetermined intensity of ambient light and the drive current intensity is greater than the predetermined drive current intensity.
2. The display device according to claim 1 , further comprising an optical sensor and a controller, wherein the optical sensor is configured to sense the intensity of ambient light or the intensity of device light emitted by the plurality of micro light emitting semiconductors, the controller is electrically connected to the optical sensor and the at least one light modulation panel, and the controller generates the light modulation control signal according to the intensity of ambient light or the intensity of device light.
3. The display device according to claim 2 , wherein the controller is electrically connected to the plurality of micro light emitting semiconductors, and the controller generates the light modulation control signal according to the intensity of ambient light and the drive current intensity in the plurality of micro light emitting semiconductors.
4. The display device according to claim 1 , wherein the light modulation unit comprises an electrochromic material.
5. The display device according to claim 1 , wherein a number of the at least one light modulation panel is two, the display panel defines a first pixel area and a second pixel area, and the two light modulation panels are respectively disposed in the first pixel area and the second pixel area.
6. The display device according to claim 1 , wherein there is a logarithmic relationship between the transmittance of the light modulation unit and a sensitivity of human eye to light.