Patent ID: 8212793

Claim:
A liquid crystal device comprising: a first substrate; a second substrate that is provided over the first substrate in such a manner that the first substrate and the second substrate face each other; a plurality of optical sensing sections that is formed in an image display area over the first substrate; a plurality of active incident light adjusting sections that is formed in the image display area in such a manner that each of the plurality of active incident light adjusting sections includes a liquid crystal portion that overlaps the corresponding optical sensing section in a plan view, constituting a part of a liquid crystal layer that is sandwiched between the first substrate and the second substrate, the plurality of active incident light adjusting sections being capable of dynamically adjusting, independently of one another, an amount of incident light that enters the plurality of optical sensing sections through an image display surface that lies at one of two surfaces of the second substrate that does not face the liquid crystal layer, the image display surface being pointed to by a pointing means; and a controlling section that commands, in a case where it is not possible to discriminate a target-image region of the pointing means from other non-target-image region, and thus, in a case where it is not possible to identify the pointing means in an acquired image, which is obtained as a result of the sensed incident light performed by each of the plurality of the optical sensing sections, one group of the active incident light adjusting sections that corresponds to a white image region contained in the acquired image to increase an incident-light reduction amount, whereas the controlling section commands the other group of the active incident light adjusting sections that corresponds to a black image region contained in the acquired image to decrease the incident-light reduction amount, thereby controlling the plurality of active incident light adjusting sections independently of one another.