Circuit and method for driving self light-emitting display device
First Claim
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1. A method of driving a self light-emitting display device, comprising:
- sensing a luminous intensity of ambient light; and
controlling a voltage or a current of respective color components in accordance with an indoor level or an outdoor level,wherein the voltage or the current of respective color components are applied at a substantially same ratio to one another simultaneously when the sensed luminous intensity is the indoor level, andwherein the voltage or the current of respective color components are applied at a different ratio to one another simultaneously when the sensed luminous intensity is the outdoor level.
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Abstract
Disclosed is a circuit for driving a self light-emitting display device which itself emits light when an electric or other energy is inputted thereto and a method thereof. According to the circuit and method, the self light-emitting display device can be driven more stably and with a higher efficiency by adjusting the number of used bits and luminance of respective color components in accordance with a luminance change of an external light and keeping a constant contrast ratio irrespective of the adjustment of the bit numbers.
9 Citations
9 Claims
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1. A method of driving a self light-emitting display device, comprising:
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sensing a luminous intensity of ambient light; and controlling a voltage or a current of respective color components in accordance with an indoor level or an outdoor level, wherein the voltage or the current of respective color components are applied at a substantially same ratio to one another simultaneously when the sensed luminous intensity is the indoor level, and wherein the voltage or the current of respective color components are applied at a different ratio to one another simultaneously when the sensed luminous intensity is the outdoor level. - View Dependent Claims (2, 3, 4)
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5. A circuit for driving a self light-emitting display device, comprising:
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a detective sensor for sensing a luminous intensity of ambient light as an indoor level or as an outdoor level; and a controller for controlling a voltage or a current of respective color components in accordance with the indoor level or the outdoor level, wherein the voltage or the current of respective color components are applied at a substantially same ratio to one another simultaneously when the sensed luminous intensity is the indoor level, and wherein the voltage or the current of respective color components are applied at a different ratio to one another simultaneously when the sensed luminous intensity is the outdoor level. - View Dependent Claims (6, 7)
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8. A method of driving a self light-emitting display device comprising:
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sensing a luminous intensity of ambient light as an indoor level or as an outdoor level; and controlling a number of color bits of respective color components in accordance with the indoor level or the outdoor level, wherein the number of color bits of respective color components are applied at a substantially same ratio to one another simultaneously when the sensed luminous intensity is the indoor level, and wherein the number of color bits of respective color components are applied at a different ratio to one another simultaneously when the sensed luminous intensity is the outdoor level.
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9. A circuit for driving a self light-emitting display device comprising:
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a detective sensor for sensing a luminous intensity of ambient light as an indoor level or as an outdoor level; and a controller for controlling a number of color bits of respective color components in accordance with the indoor level or the outdoor level, wherein the number of color bits of respective color components are applied at a substantially same ratio to one another simultaneously when the sensed luminous intensity is the indoor level, and wherein the number of color bits of respective color components are applied at a different ratio to one another simultaneously when the sensed luminous intensity is the outdoor level.
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Specification