Electro-optical device, semiconductor device, display device, and electronic apparatus having the same
AssigneeSony Corporation
InventorYutaka Kobashi
Life of this patent
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Abstract
An electro-optical device includes: a panel having a display area in which an electro-optical material is interposed between first and second substrates; and a light detection unit disposed on the first or second substrate to detect illuminance of ambient light of the panel, wherein the light detection unit performs a detecting operation plural times at a predetermined time interval, and wherein the predetermined time interval is set to be a value except for an integer multiple of 1/100 sec or 1/120 sec or a value close thereto.
Claims14
An electro-optical device comprising:
- a panel having a display area in which an electro-optical material is interposed between first and second substrates;
- a light detection unit disposed on the first or second substrate, the light detection unit including at least one light sensor to detect illuminance of ambient light of the pane;
- and
- a light shielding electrode positioned relative to the sensor to block at least a portion of light emitted from a backlight unit from reaching the light sensor,
- wherein the light detection unit performs a detecting operation plural times at a predetermined time interval, and
- wherein the predetermined time interval is set to be a value except for an integer multiple of about 1/100 sec or about 1/120 sec.
A semiconductor device comprising:
- a light sensor disposed on a substrate to measure illuminance of external light around the substrate;
- a light shielding electrode positioned relative to the light sensor to block at least a portion of light emitted from a backlight unit from reaching the light sensor;
- and
- a detection circuit connected to the light sensor to perform an output corresponding to the illuminance of the external light,
- wherein the detection circuit performs an operation of detecting the illuminance of the external light plural times on the basis of an input from the light sensor, and
- wherein T1 is a time interval between a first detecting operation and a second detecting operation subsequent to the first detecting operation, and the time interval T1 is set to be a value except for an integer multiple of about 1/100 sec or about 1/120 sec.
A method of detecting ambient light comprising:
- providing a panel having a display area in which an electro-optical material is interposed between first and second substrates;
- and
- detecting illuminance of ambient light of the panel with a light detection unit disposed on the first or second substrate by performing a detecting operation a plurality of times during a predetermined time interval,
- wherein the predetermined time interval is set to be a value except for an integer multiple of about 1/100 sec or about 1/120 sec.
Dependencies are inferred from the claim text.