Liquid crystal display device with correction unit to generate correction gray level signal voltages

摘要

A liquid crystal display device which includes one image signal line which is connected to a plurality of pixels, a scanning line drive part which outputs an ON voltage to the respective pixels in a predetermined order, and a data line drive part which outputs image signal voltages. The data line drive part outputs a gray level signal voltage corresponding to a gray level value of the pixel as an image signal voltage in a first period, and outputs a correction gray level signal voltage different from the gray level signal voltage as an image signal voltage in a second period which precedes the first period. The liquid crystal display device further includes a control part which generates the correction gray level signal voltage based on the gray level value of the pixel and one or plurarity of gray level values of pixels which precede the pixel in order.

主权项

1. A liquid crystal display device comprising:
one image signal line to which drain electrodes of thin-film transistors respectively included in a plurality of pixels are connected, each of the plurality of pixels including a pixel electrode and one of the thin film transistors which has a source electrode thereof connected to the pixel electrode; a plurality of scanning lines respectively connected to gate electrodes of the thin film transistors included in the plurality of pixels connected to the one image signal line, an output unit which is configured to output ON voltage for turning on the thin film transistors through the plurality of scanning lines in a predetermined order; and an image signal output unit which is configured to output image signal voltages corresponding to the plurality of pixels through the image signal line in the predetermined order; wherein the image signal output unit outputs a gray level signal voltage having a voltage corresponding to a gray level value of the pixel as an image signal voltage of the pixel in a first period out of a period in which the image signal voltage of the pixel is outputted, and outputs a correction gray level signal voltage having a voltage different from the gray level signal voltage as an image signal voltage of the pixel in a second period which precedes the first period out of the period, the plurality of pixels include a first pixel connected to one scanning line in the plurality of scanning lines, a second pixel to which the ON voltage is input one pixel before the first pixel in the predetermined order, and a third pixel to which the ON voltage is input one pixel before the second pixel in the predetermined order; the liquid crystal display device further comprises a control unit configured to generate the correction gray level signal voltage of the plurality of pixels, the control unit generating the correction gray level signal voltage of the first pixel based on the gray level value of the first pixel and one or plurality of gray level values of pixels which precede the first pixel in the predetermined order; and wherein the control unit comprises:
a correction unit which is configured to output the correction gray level value of the first pixel, based on the gray level value of the first pixel, a gray level value of the second pixel, and a correction gray level value of the second pixel, anda correction gray level signal voltage generation unit which is configured to generate the correction gray level signal voltage based on the correction gray level value outputted from the correction unit,wherein the correction gray level value of the second pixel is outputted based on at least two of gray level values of pixels comprised of the second pixel and the third pixel.