Patent ID: 8638317
Filing Date: 2014-01-28
Classification: G02F,G06F

Abstract:
1. A display apparatus, comprising: a transmissive type liquid crystal display panel having a display function and a light- receiving/imaging function, the display panel including a display area including a plurality of pixels arranged in a matrix, each pixel including a light-emitting element and a light-receiving sensor; a first image processing section configured to: a second image processing section configured to: a control section configured to control an operation of the second image processing section in accordance with the generated detection signal such that when the control section determines that the image processing performed by said second image processing section is not necessary, the control section causes the second image processing section to enter a sleep state, wherein the control section suspends a supply of power to the second image processing section during the sleep state, wherein when said second image processing section is in the sleep state, said control section causes the light-receiving/imaging function and the image processing performed by said first image processing section to be repeatedly performed at a first frequency greater than zero, and wherein when said second image processing section is not in the sleep state, said control section causes the light-receiving/imaging function and the image processing performed by said first image processing section to be repeatedly performed at a second frequency that is greater than the first frequency.