Abstract: A chat system includes: a user answer acquisition unit that, when a question is received from a user who is questioner, transmits the question to a plurality of other users to acquire answers from the plurality of other users; and an answering unit that answers the questioner by using any of the answer, content stored in a database of a conversation data storage unit and the answer content obtained from the plurality of other users. By selecting any of the answer content stored in the database and the answer content obtained from, the plurality of other users, a more appropriate answer can be provided to the questioner.

Abstract: There is provided an image pickup unit including an image pickup element converting an optical image to an electrical signal, an optical member disposed on a subject side of the image pickup element, a plate joined to one edge of the optical member, and a vibrating member joined to the plate.

Abstract: An optical pickup device includes an objective-lens driving mechanism including a lens holder that holds an objective lens configured to focus a light beam emitted from a light source onto an optical disk, a support unit that movably supports the lens holder in a focusing direction parallel to an optical axis of the objective lens and in a tracking direction perpendicular to the optical axis, and magnets that apply predetermined magnetic fields to coils of the lens holder. The optical pickup device further includes a light source holding unit that fixedly holds the light source, and a yoke member attached to a magnet located at a position near the light source. The light source holding unit and the yoke member are thermally conductive metal. The yoke member extends toward the light source and is fixed to the light source holding unit in a thermally conductive manner.

Abstract: A circuit panel includes an array substrate in which a scanning line is formed as a capacitive load and first and second scanning line drivers connected to the scanning line in order to commonly drive the scanning line. Each of the first and second scanning line drivers includes first and second switching circuits connected in series between first and second power terminals to selectively output one of the potentials of the first and second power source terminals as a control signal, and an output buffer for setting the potential of the scanning line in accordance with the control signal. The driving abilities of the first and second switching circuits are uneven.

Abstract: A circuit panel includes an array substrate in which a scanning line is formed as a capacitive load and first and second scanning line drivers connected to the scanning line in order to commonly drive the scanning line. Each of the first and second scanning line drivers includes first and second switching circuits connected in series between first and second power terminals to selectively output one of the potentials of the first and second power source terminals as a control signal, and an output buffer for setting the potential of the scanning line in accordance with the control signal. The driving abilities of the first and second switching circuits are uneven.

Abstract: An insulated-gate transistor signal input device includes an insulating substrate, a first clock line formed on the insulating substrate to receive a clock signal externally supplied, a clock buffer formed on the insulating substrate to process the clock signal supplied from the first clock line, a second clock line formed on the insulating substrate to input a signal obtained from the clock buffer to a shift register serving as a load circuit formed on the insulating substrate. The insulated-gate transistor signal input device further includes a first protection diode circuit connected to the first clock line to remove electrostatic charge from the first clock line, and a second protection diode circuit connected to the second clock line to remove electrostatic charge from the second clock line.