Display device and method of controlling the same
First Claim
Patent Images
1. A display device, comprising:
- a display panel including a plurality of pixels;
an illuminance sensor to measure illuminance; and
a display controller including a processor to calculate an external illuminance value with reference to a signal from the illuminance sensor and a brightness controller to turn off at least one of the pixels and to control brightness of the display panel when the calculated external illuminance value is in a first region, whereinthe brightness controller is to control on and off states of each of the pixels so that a ratio of a number of turned on pixels to a number of all pixels in the display panel is a predetermined value when the external illuminance value is in the first region.
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Abstract
A display device includes a display panel including a plurality of pixels, an illuminance sensor to measure illuminance, and a display controller which includes a processor a brightness controllers. The processor calculates an external illuminance value with reference to a signal from the illuminance sensor. The brightness controller turns off at least one of the pixels and controls the brightness of the display panel when the calculated external illuminance value is in a first region. The first region may be, for example, in a mesopic region.
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Citations
14 Claims
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1. A display device, comprising:
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a display panel including a plurality of pixels; an illuminance sensor to measure illuminance; and a display controller including a processor to calculate an external illuminance value with reference to a signal from the illuminance sensor and a brightness controller to turn off at least one of the pixels and to control brightness of the display panel when the calculated external illuminance value is in a first region, wherein the brightness controller is to control on and off states of each of the pixels so that a ratio of a number of turned on pixels to a number of all pixels in the display panel is a predetermined value when the external illuminance value is in the first region. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for controlling a display device, the method comprising:
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measuring illuminance using an illuminance sensor; calculating an external illuminance value with reference to a signal from the illuminance sensor; determining whether the external illuminance value is in a first region; and turning off at least one of a plurality of pixels in a display panel to control brightness of the display panel when the external illuminance value is in the first region, wherein controlling the brightness of the display panel is performed by controlling on and off states of each of the pixels so that a ratio of a number of turned on pixels to a number of all pixels in the display panel is a predetermined value. - View Dependent Claims (8, 9, 10)
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11. An apparatus, comprising:
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a processor to calculate an external illuminance value with reference to a signal from an illuminance sensor; and a brightness controller to turn off at least one of a plurality of pixels to control brightness of a display when the external illuminance value is in a first region, wherein the brightness controller is to control on and off states of each of the pixels so that a ratio of a number of turned on pixels to a number of all pixels in the display is a predetermined value when the external illuminance value is in the first region. - View Dependent Claims (12, 13, 14)
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Specification