Liquid crystal display device
View Patent ↗A liquid crystal display device includes: an image processing circuit configured to carry out image processing on input display data input from an outside; and a timing controller configured to receive display data subjected to the image processing by the image processing circuit, to thereby generate a plurality of timing signals for defining an operation timing of a data line driving circuit and an operation timing of a gate line driving circuit, the image processing circuit being configured to receive at least one timing signal among the plurality of timing signals generated by the timing controller, to thereby carry out the image processing on the input display data based on the received at least one timing signal.
1. A liquid crystal display device, comprising:
a display panel comprising:
a plurality of gate lines extending in a row direction; and
a plurality of data lines extending in a column direction;
a data line driving circuit configured to supply a plurality of data signals to the plurality of data lines;
a gate line driving circuit configured to supply a plurality of gate signals to the plurality of gate lines;
an image processing circuit configured to carry out image processing on input display data input from an outside; and
a timing controller configured to receive display data subjected to the image processing by the image processing circuit, to thereby generate a polarity control signal for determining a polarity of the plurality of data signals to be supplied to the plurality of data lines,
the image processing circuit being configured to receive the polarity control signal generated by the timing controller, to thereby carry out the image processing on the input display data based on the received polarity control signal and supply the display data to the timing controller.
2. The liquid crystal display device according to claim 1 , wherein the image processing circuit and the timing controller are each configured of an individual integrated circuit (IC),
wherein the image processing circuit is a field programmable gate array.
3. The liquid crystal display device according to claim 1 ,
wherein the image processing circuit comprises a plurality of image processing circuits,
wherein the timing controller comprises a plurality of timing controllers, and
wherein each of the plurality of image processing circuits receives the polarity control signal generated in the timing controller corresponding to the each of the plurality of image processing circuits, to thereby carry out the image processing on the input display data based on the received polarity control signal.
4. The liquid crystal display device according to claim 3 ,
wherein the plurality of timing controllers are cascade-connected to each other, and
wherein the polarity control signal output from the timing controller is input to the image processing circuit corresponding to the timing controller, and is also input to the adjacent timing controller.
5. The liquid crystal display device according to claim 4 , wherein the plurality of image processing circuits are not directly connected to each other.
6. The liquid crystal display device according to claim 1 , wherein the image processing circuit corrects an input grayscale corresponding to the input display data to a grayscale that is one of higher and lower than a target grayscale.
7. The liquid crystal display device according to claim 6 , wherein the image processing circuit corrects the input display data so that a correction amount for the input display data corresponding to the plurality of data signals with a positive polarity and a correction amount for the input display data corresponding to the plurality of data signals with a negative polarity are different from each other.
8. The liquid crystal display device according to claim 6 , wherein the image processing circuit corrects the input display data so that a correction amount for the input display data corresponding to the plurality of data signals with a positive polarity is larger than a correction amount for the input display data corresponding to the plurality of data signals with a negative polarity.
9. The liquid crystal display device according to claim 1 , wherein the image processing circuit corrects an input grayscale of each pixel corresponding to the input display data in accordance with a position of a pixel in a display region.