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US 12,008,968 B2Granted
Display device
AssigneeLG Display Co., Ltd.
InventorMooKyoung Hong
Life of this patent
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Abstract
A display device includes: a display panel on which a plurality of pixels are disposed; a timing controller configured to receive Nth frame data and (N+1)th frame data and output a luminance control signal; and a power supply configured to output a reference voltage from a plurality of reference voltages each having a different level in response to the luminance control signal, in which output luminance of the plurality of pixels is determined according to the level of the reference voltage thereby maximizing an HDR effect.
Claims17
A display device comprising:
- a display panel including a plurality of pixels;
- a timing controller configured to receive Nth frame data and (N+1)th frame data and output a luminance control signal based on the Nth frame data and the (N+1)th frame data;
- and
- a power supply configured to generate a plurality of reference voltages each having a different level and output a reference voltage from the plurality of reference voltages responsive to the luminance control signal,
- wherein output luminance of the plurality of pixels is determined according to a level of the outputted reference voltage,
- wherein N is a natural number of one or more, and
- wherein the timing controller comprises:
- a data sampler configured to extract (N+1)th sampling data by sampling the (N+1)th frame data;
- and
- a data comparator configured to compare the (N+1)th sampling data and the Nth frame data and output the luminance control signal based on a result of comparison.
7 more elements
A display device comprising:
- a display panel including a plurality of pixels configured to display an image;
- a data driver configured to generate a data voltage of the image;
- a gate driver configured to generate a scan signal;
- a timing controller configured to receive first frame data and second frame data and output a luminance control signal based on the first frame data and the second frame data,
- wherein at least one of the plurality of pixel includes:
- a driving element including a first electrode of the driving element that is connected to a first node to which a power supply voltage is applied, a gate electrode of the driving element that is connected to a second node to which the data voltage is applied, and a second electrode of the driving element that is connected to a third node;
- a light emitting element including an anode electrode connected to the third node;
- a first switch element configured to supply the data voltage to the second node responsive to the scan signal being applied to the first switch element;
- and
- a second switch element connected to the third node, the second switch element configured to apply one of a plurality of reference voltages each having a different level to the third node,
- wherein an output luminance of the pixel is based on a level of the outputted reference voltage to the third node,
- wherein a reference voltage from the plurality of reference voltages is selected to apply to the third node based on the luminance control signal and
- wherein the timing controller comprises:
- a data sampler configured to sample the first frame data to extract sampling data from the first frame data;
- and
- a data comparator configured to compare the sampling data and the second frame data and output the luminance control signal based on a result of comparison.
13 more elements
A display device comprising:
- a display panel including a plurality of pixels;
- and
- a timing controller configured to simultaneously receive first frame data and second frame data, and output a luminance control signal based on a comparison of the first frame data and the second frame data that were simultaneously received,
- wherein an output luminance of the plurality of pixels is based on the luminance control signal, and
- wherein the timing controller comprises:
- a data sampler configured to sample the first frame data to extract sampling data from the first frame data;
- and
- a data comparator configured to compare the sampling data and the second frame data and output the luminance control signal based on a result of comparison.
5 more elements
Dependencies are inferred from the claim text.