US 2017/0287429 A1 · DISPLAY DRIVING CIRCUIT AND DISPLAY DEVICE COMPRISING THE SAME

Abstract

A display driving circuit and a display device including the display driving circuit are disclosed. The display driving circuit includes: a data driver including a first channel amplifier operating based on first pixel data and a second channel amplifier operating based on second pixel data and configured to drive first and second pixels of a display panel based on the first pixel data and the second pixel data of a first line; and a data comparator configured to compare the first pixel data with the second pixel data and determine operation states of the first channel amplifier and the second channel amplifier on a comparison result, before a first horizontal period in which the first pixel and the second pixel are driven.

Claims20

Dependent claims

A display driving circuit comprising:

a data driver including,
a first channel amplifier configured to drive a first data line connected to a first group of pixels of a display panel, the first group of pixels includes a first pixel associated with a first gate line of the display panel, and
a second channel amplifier configured to drive a second data line connected to a second group of pixels of the display panel, the second group of pixels includes a second pixel associated with the first gate line;
and
a data comparator configured to compare the first pixel data corresponding to the first pixel with the second pixel data corresponding to the second pixel, and configured to determine operation states of the first channel amplifier and the second channel amplifier based on a comparison result, before a first horizontal period in which the first pixel and the second pixel are driven.

2 more elements

A display device comprising:

a display panel including a plurality of pixels arranged in a matrix form;
a data driver including,
a first channel amplifier configured to drive a first data line connected to first pixels of the display panel based on first pixel data associated with a plurality of gate lines of the display panel, and
a second channel amplifier configured to drive a second data line connected to second pixels of the display panel based on second pixel data associated with the plurality of gate lines;
and
a timing controller configured to compare first pixel data with second pixel data associated with a (k+1)th gate line (k is a positive integer) among the plurality of gate lines during a kth horizontal period, and to determine whether to turn on or turn off the second channel amplifier for a (k+1)th horizontal period based on a comparison result, before the (k+1)th horizontal period starts.

3 more elements

A driving circuit configured to drive a display panel during at least a first horizontal period and a second horizontal period, the driving circuit comprising:

a controller configured to determine which ones of a first channel amplifier and a second channel amplifier to enable to amplify pixel data associated with a second gate line of the display panel during the second horizontal period based on the pixel data associated with a first gate line and the second gate line during the first horizontal period such that ones of the first channel amplifier and the second channel amplifier that are disabled during the first horizontal period and determined to be enabled during the second horizontal period are re-enabled prior to a start of the second horizontal period.

Dependencies are inferred from the claim text.

Display driving circuit and display device comprising the same

Life of this patent

Display driving circuit and display device comprising the same

Life of this patent

Abstract

Claims20