FIELD: physics.
SUBSTANCE: unit (21) for calculating backlight luminance determines backlight luminance based on an image signal for the displayed image. A unit (122) for determining a moving image determines whether the displayed image is a moving image based on the image signal. A unit (123) for calculating an adjustment value increases the last adjustment value by a given value to obtain a new adjustment value if the displayed image is a moving image, and reduces the last adjustment value by a given value to obtain a new adjustment value if the displayed image is a fixed image. A summation unit (124) adds the adjustment value to the backlight luminance to adjust backlight luminance. The present invention can be used in a liquid crystal display device.
EFFECT: preventing image quality deterioration due to insufficient backlight luminance.
4 cl, 11 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
RU2516329C2 |
| DISPLAY DEVICE | 2008 |
|
RU2443006C1 |
| DISPLAY DEVICE | 2010 |
|
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| IMAGE DISPLAY DEVICE, TELEVISION RECEIVER, METHOD OF CONTROLLING IMAGE DISPLAY DEVICE AND METHOD OF CONTROLLING TELEVISION RECEIVER | 2009 |
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| DISPLAY DEVICE, DISPLAY DEVICE CONTROL METHOD AND COMPUTER PROGRAM | 2008 |
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| IMAGE DISPLAY DEVICE AND IMAGE DISPLAY METHOD | 2009 |
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| DISPLAY AND METHOD OF MAPPING | 2010 |
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RU2565480C2 |
| DISPLAY DEVICE, DISPLAY DEVICE CONTROL METHOD AND COMPUTER PROGRAM | 2008 |
|
RU2469416C2 |
| BACKLIGHT DEVICE, METHOD OF CONTROLLING BACKLIGHT AND LIQUID-CRYSTAL DISPLAY DEVICE | 2008 |
|
RU2419888C1 |
