Method of driving organic light emitting display device
AssigneeLG Display Co., Ltd.
InventorsNari Kim, Seung Tae Kim, Tae Gung Kim, Ji Eun Lee
Life of this patent
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Abstract
An organic light emitting display device includes a display panel having a plurality of pixels provided with a pixel circuit to operate an organic light emitting diode, and a driving circuit to drive the display panel, wherein ‘n’ horizontal sensing lines are formed in the display panel, and a method for driving the display device includes: dividing the ‘n’ horizontal sensing lines formed in the display panel into a plurality of blocks; and sequentially or non-sequentially sensing the plurality of blocks via the sensing lines, wherein the plurality of blocks are sensed in order from the first to the last of the ‘n’ sensing lines by a sequential or non-sequential method.
Claims16
A method of driving an organic light emitting display device comprising a display panel including a plurality of pixels arranged in ‘n’ (n is an integer greater than 3) horizontal sensing lines, a driving circuit for driving the plurality of pixels, wherein the plurality of pixels arranged in the ‘n’ horizontal sensing lines are divided into a plurality of blocks, and each block has pixels arranged in ‘m’ (m is an integer greater than 1 and smaller than n) sensing lines, the method including:
- sensing characteristics of driving thin film transistors (TFTs) of pixels arranged in one sensing line of the ‘m’ sensing lines in one block of the plurality of blocks by using reference voltage lines parallel to data lines;
- and
- sensing characteristics of driving TFTs of pixels arranged in one sensing line of ‘m’ sensing lines in another block of the plurality of blocks by using the reference voltage lines,
- wherein the characteristics of the driving TFTs of the pixels arranged in the one sensing line of the another block are sensed after sensing the characteristics of the driving TFTs of the pixels arranged in only the one sensing line of the one block and before sensing characteristics of driving TFTs of pixels arranged in any other sensing line of the one block, and
- wherein the plurality of blocks are sensed non-sequentially or the ‘m’ sensing lines in one of the plurality of blocks are sensed non-sequentially or the plurality of blocks and the ‘m’ sensing lines in one of the plurality of blocks are sensed non-sequentially.
An organic light emitting display device comprising:
- a display panel including a plurality of pixels arranged in ‘n’ (n is an integer greater than 3) horizontal sensing lines, a driving circuit for driving the plurality of pixels, the plurality of pixels arranged in the ‘n’ horizontal sensing lines are divided into a plurality of blocks, and each block has pixels arranged in ‘m’ (m is an integer greater than 1 and smaller than n) sensing lines;
- a driving circuit to drive the display panel, the driving circuit configured to:
- sense characteristics of driving thin film transistors (TFTs) of pixels arranged in one sensing line of the ‘m’ sensing lines in one block of the plurality of blocks by using reference voltage lines parallel to data lines;
- and
- sense characteristics of driving TFTs of pixels arranged in one sensing line of ‘m’ sensing lines in another block of the plurality of blocks by using the reference voltage lines,
- wherein the characteristics of the driving TFTs of the pixels arranged in the one sensing line of the another block are sensed after sensing the characteristics of the driving TFTs of the pixels arranged in only the one sensing line of the one block and before sensing characteristics of the driving TFTs of pixels arranged in any other sensing line of the one block, and
- wherein the plurality of blocks are sensed non-sequentially or the ‘m’ sensing lines in one of the plurality of blocks are sensed non-sequentially or the plurality of blocks and the ‘m’ sensing lines in one of the plurality of blocks are sensed non-sequentially.
Dependencies are inferred from the claim text.