Brightness adjustment method and device of display screen and air conditioner

A brightness adjustment and display technology, applied in the field of display screens, can solve the problems of affecting the appearance, the small distance between the display screen and the photosensitive sensor, and interfering with the photosensitive sensor's sensing of ambient light, so as to avoid the effect of halo

Inactive Publication Date: 2015-04-29
GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in order to save costs, the photosensitive sensor is generally designed as a whole with the display module, so the distance between the display screen and the photosensitive sensor is relatively small, and in order to obtain a good display effect and improve the sensitivity of the photosensitive sensor to sense ambient light, the air conditioner panel usually It is designed to be light-transmitting, so that the light emitted by the display screen will scatter and form a halo, especially at night, the strong light emitted by the display screen of the air conditioner will scatter and form an obvious halo, which not only affects the appearance, but also interferes with photosensitivity Sensitivity of the sensor to ambient light

Method used

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  • Brightness adjustment method and device of display screen and air conditioner
  • Brightness adjustment method and device of display screen and air conditioner
  • Brightness adjustment method and device of display screen and air conditioner

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0072] Example 1: Brightness adjustment during power-on and power-on during the day.

[0073] In this example, t1=50mS is preferred. The AD value of the brightest ambient light is 255, while the AD value of the brightest ambient light that can be detected by the actual user is 200. This value is the maximum brightness that most families can collect. The brightness AD value of the lowest brightness is 0. The maximum duty cycle DTmax=100%, the minimum duty cycle DTmin=10%, that is, the brightness adjustment range of the display screen is 10-100%, the duty cycle when the display screen is darkest is 10%, and the duty cycle when the display screen is brightest is 10%. The empty ratio is 100%. Choose 5 for DF fluctuation range. Take the brightest AD value of 200 at noon during the day, the default duty cycle of power-on is 10%, and the initial target brightness LT=0 to illustrate, the specific execution process is as follows:

[0074] S1, initializing and powering on, assuming t...

example 2

[0082] Example 2: Brightness adjustment for turning on lights at night.

[0083] Other parameters in this example are the same as Example 1. Take the brightest AD value of 109 when the light is turned on at night as an example, and the current duty cycle is 100%. The specific execution process is as follows:

[0084] S3, the target brightness LT=200, the collected current ambient brightness LC=109 after turning on the lights;

[0085] S4, judging whether the current ambient brightness LC is smaller than the target brightness LT or larger than the target brightness LT, and whether the absolute value of the difference between the current ambient brightness LC and the target brightness LT is greater than DF, that is, |LC-LT|>5; because the current ambient brightness LC =109 is less than the target brightness LT=200, and the absolute value of the difference between the current environment brightness LC=109 minus the target brightness LT=200 is greater than the fluctuation range va...

example 3

[0092] Example 3: Brightness adjustment for turning off lights at night.

[0093] Other parameters in this example are the same as Example 1, and the brightest brightness AD value when the light is turned off at night is 14, and the duty cycle is 55%. The specific execution process is as follows:

[0094] Step S5, the target brightness LT=100, and the collected current ambient brightness LC=14 after turning on the lights;

[0095] Step S6, judging whether the current environment brightness LC is smaller than the target brightness LT or greater than the target brightness LT, and whether the absolute value of the difference between the current environment brightness LC and the target brightness LT is greater than DF, that is, |LC-LT|>5; because the current environment brightness LC=14 is less than the target brightness LT=100, and the absolute value of the difference between the current ambient brightness LC=14 minus the target brightness LT=100 is greater than the fluctuation r...

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Abstract

The invention discloses a brightness adjustment method of a display screen. The method comprises the steps that in the operating process of a household appliance, a current ambient brightness LC is acquired; when the current ambient brightness LC is lower than a target brightness LT and the difference value between the current ambient brightness LC and the target brightness LT is within a preset adjustment range value, the brightness of the display screen is adjusted to be lower; when the current ambient brightness LC is higher than the target brightness LT and the absolute value of the difference value between the current ambient brightness LC and the target brightness LT is larger than a fluctuating value DF, the brightness of the display screen is adjusted to be higher. The invention further discloses an air conditioner and a brightness adjustment device of the display screen. When the brightness of the display screen is adjusted through the method and the device, the current ambient brightness and the brightness of the display screen are fully considered, so that the screen display is prevented from haloing and kept in the optimal display state.

Description

technical field [0001] The invention relates to the field of display screens, in particular to a method and device for adjusting brightness of a display screen, and an air conditioner. Background technique [0002] With the development of air conditioner smart technology, different types of sensors, such as photosensitive sensors, can be added to the air conditioner. However, in order to save costs, the photosensitive sensor is generally designed as a whole with the display module, so the distance between the display screen and the photosensitive sensor is relatively small, and in order to obtain a good display effect and improve the sensitivity of the photosensitive sensor to sense ambient light, the air conditioner panel usually It is designed to be light-transmitting, so that the light emitted by the display screen will scatter and form a halo, especially at night, the strong light emitted by the display screen of the air conditioner will scatter and form an obvious halo,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G5/10
Inventor 郭新生
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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