Display device and control method for color gamut range variation and driving current adjustment
AssigneeSamsung Electronics Co., Ltd.
InventorsHo-young Jung, Jee-young Yeom, Min-woo Lee, Won-hee Choe
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Abstract
A display device is disclosed. The present display device comprises: a display unit of which the color gamut range varies according to the size of a driving current; and a processor for analyzing, per frame unit, the color distribution of an image signal, and adjusting, per frame unit, the size of the driving current on the basis of the analyzed color distribution such that the display unit operates within the color gamut range.
Claims15
A display device comprising:
- a display of which a gamut range is changed according to a size of a driving current;
- a memory configured to store information on a plurality of gamut ranges;
- and
- a processor configured to:
- identify a color distribution by frame units of an image signal,
- determine a gamut range of which an area overlapping with the color distribution by frame units of the image signal is largest, from among the plurality of gamut ranges stored in the memory, as a gamut range of the display,
- adjust the determined gamut range of the display by frame units based on the identified color distribution, and
- adjust a size of the driving current by frame units so that the display operates with the gamut range of the display.
The display device of 1, wherein the memory is further configured to store information on sizes of a plurality of driving currents and the information on the plurality of gamut ranges respectively corresponding to sizes of the plurality of driving currents.
The display device of 1, further comprising:
- an input interface configured to receive a target gamut range by a user,
- wherein the processor is further configured to determine the target gamut range received from the user as a gamut range of the image signal.
The display device of 1, wherein the processor is further configured to, if there is a region in which a gamut range of the image signal is not included in the adjusted gamut range of the display, control the display so that a color of the region not included in the adjusted gamut range is displayed to be a color at a point in which a virtual line connected to a triple point of a gamut of the image signal intersects with a boundary of the adjusted gamut range of the display.
A controlling method of a display device, the method comprising:
- storing information on a plurality of gamut ranges;
- identifying a color distribution by frame units of an image signal;
- determining a gamut range of which an area overlapping with the color distribution by frame units of the image signal is largest, from among the plurality of gamut ranges stored in a storage, as a gamut range of a display;
- adjusting the determined gamut range of the display by frame units based on the identified color distribution;
- and
- adjusting a size of a driving current by frame units so that the display operates with the gamut range of the display.
Dependencies are inferred from the claim text.