Display device, brightness adjustment device, method of adjusting brightness, and program
View Patent ↗Provided is a display device including a setting condition acquisition unit for obtaining various conditions for adjusting a gain of a video-signal, a current-brightness table calculation unit that calculates a table representing a relationship between an average brightness and a gain of a video-signal, and that calculates the table capable of setting a peak-brightness and power consumption of the video-signal independently, based on the various conditions acquired by the setting condition acquisition unit, a video-average brightness conversion block that calculates average-brightness of the video-signal input for each frame, a current-brightness control table that calculates a gain of the video-signal from the table based on the average-brightness calculated above, a video gain block that adjusts the video-signal using the gain calculated above, and a display panel that includes a plurality of pixels that emit light in response to a video-signal and displays a video based on the video-signal adjusted above.
1. A display device, comprising:
circuitry configured to
acquire various conditions for adjusting a gain of a video signal;
calculate a table representing a relationship between an average brightness and the gain of the video signal, and calculate the table capable of setting a peak brightness and power consumption of the video signal independently, based on the various conditions;
calculate an average brightness of the video signal for each frame;
a calculate the gain of the video signal from the table based on the average brightness; and
adjust the video signal using the calculated gain; and
a display panel that includes a plurality of pixels that emit light in response to the video signal and displays a video based on the video signal adjusted by the circuitry.
2. The display device according to claim 1 , wherein the circuitry is configured to acquire the various conditions including environmental information indicating an environment surrounding the display device, user setting information set by a user, information on maximum power consumption that the display panel allows, or information on meta data indicating a category of the video.
3. The display device according to claim 1 , wherein the circuitry comprises
a memory which holds temporarily a frame by which the gain is multiplied.
4. The display device according to claim 1 , wherein the circuitry is further configured to:
calculate chromaticity of the video signal based on the various conditions; and
adjust the chromaticity of the video signal using the chromaticity calculated by the circuitry.
5. A brightness adjustment device, comprising:
circuitry configured to
acquire various conditions for adjusting a gain of a video signal;
calculate a table representing a relationship between an average brightness and the gain of the video signal, and calculate the table capable of setting a peak brightness and power consumption of the video signal independently, based on the various conditions;
calculate an average brightness of the video signal input for each frame;
calculate the gain of the video signal from the table based on the average; and
adjust the video signal using the calculated gain.
6. The brightness adjustment device according to claim 5 , wherein the circuitry is configured to acquire the various conditions including environmental information indicating an environment surrounding the display device, user setting information set by a user, information on maximum power consumption that a display panel allows, or information on meta data indicating a category of a video.
7. The brightness adjustment device according to claim 5 , wherein the circuitry comprises
a memory which holds temporarily a frame by which the gain is multiplied.
8. The brightness adjustment device according to claim 5 , wherein the circuitry is further configured to:
calculate chromaticity of the video signal based on the various conditions; and
adjust chromaticity of the video signal using the chromaticity calculated by the circuitry.
9. A method of adjusting brightness, comprising the steps of:
acquiring various conditions for adjusting a gain of a video signal;
calculating a table representing a relationship between an average brightness and the gain of the video signal, and calculating the table capable of setting a peak brightness and power consumption of the video signal independently, based on the various conditions;
calculating an average brightness of the video signal for each frame;
calculating the gain of a video signal from the table based on the calculated average brightness; and
adjusting the video signal using the calculated gain.
10. A non-transitory computer-readable medium storing instructions that, when executed on a computer, cause the computer to execute the steps of:
acquiring various conditions for adjusting a gain of a video signal;
calculating a table representing a relationship between an average brightness and the gain of the video signal, and calculating the table capable of setting a peak brightness and power consumption of the video signal independently, based on the various conditions;
calculating an average brightness of the video signal input for each frame;
calculating the gain of the video signal from the table based on the calculated average brightness; and
adjusting the video signal using the calculated gain.