Patent ID: 7969400
Filing Date: 2011-06-28
Classification: G09G,G11C

Abstract:
1. A display device comprising a drive circuit to which video data is supplied from the outside; video lines to which video signals outputted from the drive circuit are supplied; and pixels to which the video signals are supplied through the video lines, wherein the drive circuit includes a static random access memory which stores the video data in memory cells, and each memory cell of the static random access memory includes a first inverter which has an input terminal thereof connected to a first node and an output terminal thereof connected to a second node, a second inverter which has an output terminal thereof connected to the first node and an input terminal thereof connected to the second node, a first-conductive-type first transistor which is connected between a writing data line and the first node and has a control terminal thereof connected to a writing word line, a second-conductive-type second transistor which is connected between the writing data line and the first node and has a control terminal thereof connected to the writing word line, a first-conductive-type third transistor which is connected between a reading data line and the second node and has a control terminal thereof connected to a reading word line, and a second-conductive-type fourth transistor which is connected between the reading data line and the second node and has a control terminal thereof connected to the reading word line, wherein the drive circuit is configured (1) to perform writing only on selected one or more said memory cells that are connected to shared writing and reading word lines and (2) to drive other ones of said memory cells connected to the shared writing and reading word lines and not selected to perform writing to output video data respectively stored therein to a reading data line and then to rewrite the video data back to said other ones of said memory cells, without precharging said memory cells that are connected to shared writing and reading word lines.