User identity authentication system and user identity authentication method and mobile telephonic device

A user identity authentication system comprising:

• a liquid crystal display device comprising a built-in image sensor, said liquid crystal display device having a pixel portion and a sensor portion including:
• a pixel thin film transistor having a source region, a drain region and a gate electrode;
• a source signal line connected to the source region;
• a liquid crystal element and a storage capacitor connected to the drain region;
• a gate signal line connected to the gate electrode;
• and
• a capacitance line connected to the storage capacitor,
• the built-in image sensor comprising:
• a first thin film transistor having a first source region, a first drain region and a first gate electrode;
• a sensor gate signal line connected to the first gate electrode;
• a sensor output wiring connected to the one of the first source and drain regions;
• a second thin film transistor having a second source region, a second drain region and a second gate electrode;
• a reset gate signal line connected to the second gate electrode;
• and
• a sensor power source line connected to the second drain region,
• a storage device;
• and
• a module for comparing individual information read by said image sensor with individual information stored in said storage device.

A user identity authentication system comprising:

• a mobile information communication device;
• a liquid crystal display device provided in said mobile information communication device, and including a pixel portion having a plurality of pixels, each of said pixels comprising:
• a pixel thin film transistor having a source region, a drain region and a gate electrode;
• a source signal line connected to the source region;
• a liquid crystal element and a storage capacitor connected to the drain region;
• a gate signal line connected to the gate electrode;
• and
• a capacitance line connected to the storage capacitor, and
• an image sensor built in said liquid crystal display device, said image sensor comprising:
• a first thin film transistor having a first source region, a first drain region and a first gate electrode;
• a sensor gate signal line connected to the first gate electrode;
• a sensor output wiring connected to one of the first source and drain regions;
• a second thin film transistor having a second source region, a second drain region and a second gate electrode;
• a reset gate signal line connected to the second gate electrode;
• and
• a sensor power source line connected to the second drain region,
• wherein said image sensor reads individual information of a user, and said individual information is transmitted via the Internet.

A user identity authentication system comprising:

• a liquid crystal display device including a built-in image sensor, said liquid crystal display device having a pixel portion and a sensor portion including:
• a pixel thin film transistor having a source region, a drain region and a gate electrode;
• a source signal line connected to the source region;
• a liquid crystal element and a storage capacitor connected to the drain region;
• a gate signal line connected to the gate electrode;
• and
• a capacitance line connected to the storage capacitor,
• the built-in image sensor comprising:
• a first thin film transistor having a first source region, a first drain region and a first gate electrode;
• a sensor gate signal line connected to the first gate electrode;
• a sensor output wiring connected to one of the first source and drain regions;
• a second thin film transistor having a second source region, a second drain region and a second gate electrode;
• a reset gate signal line connected to the second gate electrode;
• and
• a sensor power source line connected to the second drain region, a storage device;
• a module for judging whether the user can be identified or not by comparing individual information read by said image sensor with individual information stored in said storage device;
• and
• a module for transmitting a result of the authentication via the Internet.

A user identity authentication method using a mobile information communication device provided with a liquid crystal display device comprising a built-in image sensor, said method comprising:

• a step of reading individual information of a user with said image sensor;
• and
• a step of authenticating a user's identity based on said individual information,
• wherein the liquid crystal device having a first and a second front lights is capable of displaying a image and reading the individual information by the built-in image sensor, and
• wherein the first and second front lights are not lit up simultaneously, and are operated alternately corresponding to a time when displaying the image and when reading the individual information.

A user identity authentication method using a mobile information communication device provided with a liquid crystal display device comprising a built-in image sensor, said method comprising:

• a step of reading individual information of a user with said image sensor;
• and
• a step of transmitting said individual information via the Internet,
• wherein the liquid crystal device having a first and a second front lights is capable of displaying a image and reading the individual information by the built-in image sensor, and
• wherein the first and second front lights are not lit up simultaneously, and are operated alternately corresponding to a time when displaying the image and when reading the individual information.

A mobile telephonic device comprising:

• a liquid crystal display device comprising photo diodes provided for respective pixels, a flash memory, and including a pixel portion having a plurality of pixels, each of said pixels comprising:
• a pixel thin film transistor having a source region, a drain region and a gate electrode;
• a source signal line connected to the source region;
• a liquid crystal element and a storage capacitor connected to the drain region;
• a gate signal line connected to the gate electrode;
• and
• a capacitance line connected to the storage capacitor,
• an image sensor constructed of said photo diodes, said image sensor comprising:
• a first thin film transistor having a first source region, a first drain region and a first gate electrode;
• a sensor gate signal line connected to the first gate electrode;
• a sensor output wiring connected to one of the first source and drain regions;
• a second thin film transistor having a second source region, a second drain region and a second gate electrode;
• a reset gate signal line connected to the second gate electrode;
• and
• a sensor power source line connected to the second drain region, and
• a means for collating individual information read by said image sensor with user's individual information stored in said flash memory.