Photosensors for displays and related devices
AssigneeSony Ericsson Mobile Communications AB
InventorHong Ding
Life of this patent
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Abstract
An electronic device may include a liquid crystal display, a photosensor, a light, and a controller. The liquid crystal display may have first and second transparent substrates and a liquid crystal material between the first and second transparent substrates. The photosensor may be on a portion of the first transparent substrate so that the first transparent substrate is between the photosensor and the second transparent substrate, and the light may be configured to provide illumination for the electronic device. The controller may be coupled to the photosensor and the light, and the controller may be configured to vary an intensity of the illumination from the light responsive to an intensity of light incident of the photosensor. Related displays are also discussed.
Claims38
An electronic device comprising:
- a liquid crystal display having first and second transparent substrates and a liquid crystal material between the first and second transparent substrates;
- a photosensor on a portion of the first transparent substrate so that the first transparent substrate is between the photosensor and the second transparent substrate;
- a light configured to provide illumination for the electronic device;
- and
- a controller coupled to the photosensor and the light, the controller being configured to vary an intensity of the illumination from the light responsive to an intensity of light incident on the photosensor.
An electronic device comprising:
- a display including a transparent substrate having an active display area and an inactive display area surrounding the active display area;
- a photosensor on a portion of the inactive display area of the transparent substrate outside the active display area wherein the photosensor comprises a photoconductive material having an electrical resistance that varies with varying light intensities thereon and wherein a current path through the photosensor is parallel with respect to the transparent substrate;
- a light configured to provide illumination for the electronic device;
- and
- a controller coupled to the photosensor and the light, the controller being configured to vary an intensity of the illumination from the light responsive to variations in the electrical resistance of the photoconductive material.
A liquid crystal display for an electronic device, the liquid crystal display comprising:
- first and second transparent substrates;
- a liquid crystal material between the first and second transparent substrates;
- and
- a photosensor on a portion of the first transparent substrate opposite the second transparent substrate.
A display for an electronic device, the display comprising:
- a transparent substrate comprising an active area and an inactive area surrounding the active area;
- and
- a photosensor on a portion of the inactive area of the transparent substrate outside the active area wherein the photosensor comprises a photoconductive material having an electrical resistance that varies with varying light intensities thereon and wherein a current path through the photosensor is parallel with respect to the transparent substrate.
Dependencies are inferred from the claim text.