Display device driving method and display device
A display device driving method of driving a display device that includes a display panel including plural pixels, the display device driving method including: calculating, for each of the plural pixels, cumulative stress that is an accumulation of stress corresponding to an output luminance of the pixel; selecting, based on a selection signal input to the display device, one correlation data item from among a plurality of correlation data items each corresponding to a different one of the plural pixels and indicating a relationship between the cumulative stress and an efficiency residual ratio that indicates a degradation degree of the pixel; determining the efficiency residual ratio, based on the one correlation data item and the cumulative stress; and correcting, for each of the plural pixels, a luminance signal corresponding to the pixel, based on the efficiency residual ratio that corresponds to the pixel and is determined in the determining.
1 . A display device driving method of driving a display device that includes a display panel including a plurality of pixels, the display device driving method comprising:
calculating, for each of the plurality of pixels, cumulative stress that is an accumulation of stress corresponding to an output luminance of the pixel;
selecting, based on a selection signal input to the display device, one correlation data item from among a plurality of correlation data items each corresponding to a different one of the plurality of pixels and indicating a relationship between the cumulative stress and an efficiency residual ratio that indicates a degradation degree of the pixel;
determining the efficiency residual ratio, based on the one correlation data item and the cumulative stress; and
correcting, for each of the plurality of pixels, a luminance signal corresponding to the pixel based on the efficiency residual ratio that corresponds to the pixel and is determined in the determining of the efficiency residual ratio.
2 . The display device driving method according to claim 1 , wherein
for each of the plurality of pixels, a correspondence relationship between the pixel and the selection signal is determined based on a position signal input to the display device, and
the selection signal is determined based on a change in the position signal.
3 . The display device driving method according to claim 2 , wherein
the position signal corresponds to a position of a cursor displayed on the display panel.
4 . The display device driving method according to claim 2 , wherein
the display panel is a touch panel, and
the position signal corresponds to a touched position on the display panel.
5 . A display device driving method of driving a display device that includes a display panel including a plurality of pixels, the display device driving method comprising:
calculating, for each of the plurality of pixels, cumulative stress that is an accumulation of stress corresponding to an output luminance of the pixel;
determining, for each of the plurality of pixels, an efficiency residual ratio indicating a degradation degree of the pixel, based on the cumulative stress and correlation data that corresponds to the pixel and indicates a relationship between the cumulative stress and the efficiency residual ratio;
generating, for each of the plurality of pixels, a first correction signal by correcting a luminance signal corresponding to the pixel based on the efficiency residual ratio that corresponds to the pixel and is determined in the determining of the efficiency residual ratio; and
generating a second correction signal by correcting the first correction signal based on an additional gain signal input to the display device.
6 . The display device driving method according to claim 5 , wherein
for each of the plurality of pixels, a correspondence relationship between the pixel and the additional gain signal is determined based on a position signal input to the display device, and
the additional gain signal is determined based on a change in the position signal.
7 . The display device driving method according to claim 6 , wherein
the position signal corresponds to a position of a cursor displayed on the display panel.
8 . The display device driving method according to claim 6 , wherein
the display panel is a touch panel, and
the position signal corresponds to a touched position on the display panel.
9 . A display device that includes a display panel including a plurality of pixels, the display device comprising:
a cumulative stress calculator that calculates, for each of the plurality of pixels, cumulative stress that is an accumulation of stress corresponding to an output luminance of the pixel;
a selector that selects, based on a selection signal input to the display device, one correlation data item from among a plurality of correlation data items each corresponding to a different one of the plurality of pixels and indicating a relationship between the cumulative stress and an efficiency residual ratio that indicates a degradation degree of the pixel;
an efficiency residual ratio determiner that determines the efficiency residual ratio, based on the one correlation data item and the cumulative stress; and
a corrector that corrects, for each of the plurality of pixels, a luminance signal corresponding to the pixel based on the efficiency residual ratio that corresponds to the pixel and is determined by the efficiency residual ratio determiner.
10 . A display device that includes a display panel including a plurality of pixels, the display device comprising:
a cumulative stress calculator that calculates, for each of the plurality of pixels, cumulative stress that is an accumulation of stress corresponding to an output luminance of the pixel;
an efficiency residual ratio determiner that determines, for each of the plurality of pixels, an efficiency residual ratio indicating a degradation degree of the pixel, based on the cumulative stress and correlation data that corresponds to the pixel and indicates a relationship between the cumulative stress and the efficiency residual ratio;
a first corrector that generates, for each of the plurality of pixels, a first correction signal by correcting a luminance signal corresponding to the pixel based on the efficiency residual ratio that corresponds to the pixel and is determined by the efficiency residual ratio determiner; and
a second corrector that generates a second correction signal by correcting the first correction signal based on an additional gain signal input to the display device.