1. An electro-optical device including an electro-optical panel, a display area of the electro-optical panel being surrounded by a peripheral sealing member, comprising:
a first light-receiving sensor that receives external light; and
a second light-receiving sensor that is connected to the first light-receiving sensor and that is shielded from the external light received by the first light-receiving sensor; and
a light detection circuit configured to determine an illuminance of the external light based on a difference in a first electrical signal output from the first light-receiving sensor and a second electrical signal output from the second light-receiving sensor,
wherein the second light-receiving sensor is located at a position at which the second light-receiving sensor is covered by the peripheral sealing member to block or shield external light from the second light-receiving sensor, and
wherein the second light-receiving sensor is at least partially embedded within the peripheral sealing member.
2. The electro-optical device according to claim 1, further comprising:
an illumination unit that emits light to the electro-optical panel,
wherein a first light-shielding film is disposed between the illumination unit and the first light-receiving sensor and between the illumination unit and the second light-receiving sensor.
3. The electro-optical device according to claim 1, wherein the electro-optical panel is a liquid crystal panel including a pair of substrates between which a liquid crystal is disposed, and the peripheral sealing member seals the liquid crystal.
4. The electro-optical device according to claim 3, wherein the peripheral sealing member includes an adhesive material that bonds the pair of substrates to each other and a material having a transmittance ratio lower than the adhesive material.
5. The electro-optical device according to claim 1, wherein the light detection circuit is connected to the first light-receiving sensor and the second light-receiving sensor so that the light detection circuit outputs a light detection signal on the basis of the first electric signal output from the first light-receiving sensor and the second electric signal output from the second light-receiving sensor.
6. The electro-optical device according to claim 1, wherein a second light-shielding film that shields the second light-receiving sensor from the external light is provided, and the first light-receiving sensor is located at a position at which the first light-receiving sensor is exposed through the second light-shielding film.
7. The electro-optical device according to claim 6, wherein the second light-shielding film is located at a position at which the second light-shielding film is overlapped with the peripheral member and is formed to be larger than the peripheral member.
8. The electro-optical device according to claim 6, wherein the second light-shielding film is disposed such that it surrounds the display area.
9. An electronic apparatus comprising the electro-optical device set claim 1.
10. The electro-optical device according to claim 3, wherein the first light-receiving sensor and the second light-receiving sensor are formed on only one of the substrates.
11. The electro-optical device according to claim 3, wherein a first one of the substrates has the first light-receiving sensor, the second light-receiving sensor, and a plurality of pixel electrodes formed thereon, and a second one of the substrates is a counter substrate having a plurality of color filters formed thereon.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
We claim:
1. A motion warning device for use with a vehicle, the device comprising:
a housing mounted to the vehicle, said housing containing a motion detector, a logic circuit, a power supply and an electro-audio device, the power supply having a battery, the motion detector providing a signal indicating movement of the motion detector, the logic circuit receiving the output signal from the motion detector and generating a signal representative of movement in one direction, the electro-audio device connected to the logic circuit to generate an audio tone in response to receiving the signal from the logic device.
2. The warning device of claim 1, wherein the power supply further comprises a recharging device for recharging the battery.
3. The warning device of claim 2, wherein the recharging device is electrically connected to an electrical system of the vehicle.
4. The warning device of claim 1, wherein the motion detector further comprises a pair of ultra-sonic sensors.
5. The warning device of claim 1, wherein the housing is mounted to the vehicle by a bracket.
6. A motion warning device of ruse with a vehicle, the device comprising:
a housing mounted to the vehicle, said housing containing a motion detector, a logic circuit, a power supply and an electro-audio device, the power supply having a battery, the motion detector having an ultra-sonic transmitter and providing a signal indicating movement of the motion detector, the logic circuit receiving the output signal from the motion detector and generating a signal representative of movement in one direction, the electro-audio device connected to the logic circuit to generate an audio tone in response to receiving the signal from the logic device.
7. The warning device of claim 1, wherein the power supply further comprises a recharging device of recharging the battery.
8. The warning device of claim 2, wherein the recharging device is electrically connected to an electrical system of the vehicle.