Brightness adjustment circuit, method and display device for indicator light and backlight
A technology of brightness adjustment and backlight adjustment, applied in static indicators, electrical components, instruments, etc., can solve the problems of excessive brightness of indicators, difficulty in distinguishing whether the indicator lights are on, waste of power consumption, etc., and reduce circuit power consumption. Effect
Active Publication Date: 2022-03-11
SHENZHEN TCL DIGITAL TECH CO LTD
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Problems solved by technology
[0002] Display devices, such as televisions, computer monitors, etc., can usually dynamically adjust the backlight through light perception, and there are indicator lights to indicate the working status of the display device. The brightness of the indicator lights is generally set to be comfortable for human eyes to see under normal indoor light. In general, the brightness of the indicator light is constant, and this makes it difficult to distinguish whether the indicator light is on when the ambient light is bright, and when the ambient light is dark, the indicator light is too bright, which is not suitable for Watching with human eyes also leads to waste of power consumption
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[0029] The present invention provides a brightness adjustment circuit, method and display device for an indicator light and a backlight, so as to dynamically adjust the brightness of the indicator light in the standby mode and dynamically adjust the brightness of the backlight in the power-on mode according to changes in ambient light, so as to Make indicator lights and display screens suitable for human eyes and minimize circuit power consumption.
[0030] In order to make the object, technical solution and effect of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0031] see figure 1 , the present invention provides a brightness adjustment circuit for indicator lights and backlights, the brightness adjus...
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The invention discloses a brightness adjustment circuit, a method and a display device of an indicator light and a backlight, and the brightness adjustment circuit includes a backlight adjustment module and a switch module; the backlight adjustment module includes a first resistor and a photosensitive device; the first resistor One end is connected to the positive pole of the photosensitive device, and the other end is connected to a DC power supply; the negative pole of the photosensitive device is connected to the switch module. The present invention can dynamically adjust the brightness of the indicator light in the standby mode and the brightness of the backlight in the power-on mode according to the change of the ambient light, so that the indicator light and the display screen are suitable for human eyes to watch and minimize the power consumption of the circuit. consumption.
Description
technical field [0001] The invention relates to the field of display technology, in particular to a brightness adjustment circuit, method and display device for an indicator light and a backlight. Background technique [0002] Display devices, such as televisions, computer monitors, etc., can usually dynamically adjust the backlight through light perception, and there are indicator lights to indicate the working status of the display device. The brightness of the indicator lights is generally set to be comfortable for human eyes to see under normal indoor light. In general, the brightness of the indicator light is constant, and this makes it difficult to distinguish whether the indicator light is on when the ambient light is bright, and when the ambient light is dark, the indicator light is too bright, which is not suitable for Viewing with the human eye also results in wasted power consumption. [0003] Thereby prior art still needs to improve and improve. Contents of th...
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IPC IPC(8): G09G3/34H05B45/12H05B45/3725H05B47/11
CPCG09G3/3406G09G2320/0626
Inventor 李建伟叶福宽
Owner SHENZHEN TCL DIGITAL TECH CO LTD