CN117116222A - Self-adjustable brightness display screen and use method thereof - Google Patents
Self-adjustable brightness display screen and use method thereof Download PDFInfo
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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Abstract
The invention relates to the technical field of display screen adjustment, and discloses a self-adjustable brightness display screen, which comprises a display panel, a light detection module, a brightness matching module, a brightness memory module, a singlechip, a manual adjustment module, a timer and a fingerprint sensing module, wherein the light detection module is used for detecting the brightness of the display panel; the application method of the self-adjustable brightness display screen is also disclosed, and the application method comprises the following steps: s1, selecting background colors in different environments; s2, collecting ambient illumination brightness and actual display brightness; s3, automatically adjusting the brightness; s4, manually adjusting the brightness. According to the invention, the display brightness of the display panel can be automatically adjusted according to different ambient light intensities and background colors, and the display brightness of the display screen can be automatically reduced when the ambient light intensity is weaker; when the ambient light intensity is high, the display brightness of the display screen can be automatically increased; the display screen can be used by a user under the optimal screen brightness without manual operation, and the automatic adjustment effect is good and the satisfaction degree is high.
Description
Technical Field
The invention relates to the technical field of display screen adjustment, in particular to a self-adjustable brightness display screen and a use method thereof.
Background
With the continuous development of artificial intelligence technology, people's daily life is also gradually intelligent, especially smart phones are popular unprecedentedly, people become habit in using smart phones, and people do not leave hands more than people's life normals; therefore, setting the appropriate brightness of the display screen of the mobile phone is important for the eye health of people. In order to enable a user to use the display screen comfortably, the display screen should have different brightness corresponding to different ambient light illumination, and in order to improve the intelligent degree, the display screen of the mobile phone should be capable of adjusting the brightness according to the ambient light illumination, which requires that the display screen has an automatic brightness adjusting function.
The Chinese patent discloses a liquid crystal display capable of automatically adjusting brightness and an adjusting method thereof (grant bulletin No. CN 1794044A), and the technology of the Chinese patent automatically adjusts the brightness of the display along with the change of the use environment, thereby greatly facilitating the user and improving the visual comfort of the user; the display brightness adjusting circuit is slightly improved on the original display brightness adjusting circuit, achieves a good use effect, is suitable for the improvement of the existing liquid crystal display production line, but automatically adjusts display brightness only according to the ambient illumination intensity, and under different background colors, the requirements of users on the display brightness are different, so that the satisfaction degree of the users is not high.
Disclosure of Invention
The present invention is directed to a self-adjustable brightness display screen and a method for using the same, so as to solve the problems set forth in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the self-adjustable brightness display screen comprises a display panel, a light detection module, a brightness matching module, a brightness memory module, a singlechip, a manual adjustment module, a timer and a fingerprint sensing module, wherein the light detection module comprises an environment brightness detection unit and a display panel brightness detection unit, the environment brightness detection unit is used for collecting environment illumination brightness, and the display panel brightness detection unit is used for collecting display panel brightness and respectively transmitting the environment illumination brightness and a display panel brightness signal to the singlechip;
the manual adjustment module is used for manually adjusting the actual display brightness of the display panel;
the brightness matching module is used for automatically adjusting the actual display brightness of the display panel according to the background color and the ambient illumination brightness of the display panel;
the brightness memory module is used for memorizing and storing data of the relation between the brightness of the display panel and the ambient illuminance;
the singlechip is used for receiving signals transmitted by the light detection module and the manual adjustment module, carrying out operation and judgment, storing operation results and sending out control signals.
As still further aspects of the invention: the environment brightness detection unit comprises an optical filter, a photocell and an amplifier; the working method is as follows:
the method comprises the steps of selectively attenuating incident light with various wavelengths through the optical filter, receiving the incident light through the photocell, outputting a current signal, amplifying the current signal through the amplifier, and enabling the response curve of the output voltage to the light with different wavelengths to be the same as the human eyes' feeling to the light with different wavelengths, so that the acquisition of the ambient illumination brightness is realized.
As still further aspects of the invention: the manual adjusting module consists of 5 keys including 1# key, 2# key, 3# key, 4# key and 5# key, wherein the 1# key manually selects red; the 2# key manually selects blue; the 3# key manually selects green; the 1# key and the 2# key are pressed simultaneously to lock the current relation; the keys 2# and 3# are pressed simultaneously, and the backlight brightness returns to the factory value; the 1# key, the 2# key and the 3# key are simultaneously pressed to lock the current backlight brightness; the 4# key manually reduces the brightness of the current color; the 5# key manually increases the current color intensity.
A use method of a self-adjustable brightness display screen comprises the following steps:
s1, randomly selecting pictures with different colors as background colors of a display panel under different environments respectively;
s2, initializing an ambient brightness detection unit and a display panel brightness detection unit; the method comprises the steps that ambient illumination brightness in different environments is respectively collected through an ambient brightness detection unit, and actual display brightness of a display panel in different environments and different background colors is respectively collected through a display panel brightness detection unit;
s3, calculating theoretical display brightness of the display panel by the singlechip according to the ambient illumination intensity and the background color, judging whether the current brightness of the display panel needs to be adjusted according to the theoretical display brightness and the actual display brightness, judging that the adjustment is not needed if the difference between the theoretical display brightness and the actual display brightness is smaller than a set threshold value, storing data, judging that the adjustment is needed if the difference between the theoretical display brightness and the actual display brightness is larger than the set threshold value, automatically adjusting the current brightness of the display panel by the brightness matching module, enabling the difference between the theoretical display brightness and the actual display brightness to be smaller than the set threshold value, and storing data;
s4, judging whether the user is satisfied with the current actual display brightness of the display panel after automatic adjustment, if not, manually adjusting the current actual display brightness of the display panel to a proper brightness, and then storing data; when the user opens the display screen again next time, the current ambient illumination intensity and the background color are automatically detected, and the brightness memory module automatically adjusts the actual display brightness of the display panel according to the stored data so as to meet the requirements of the user.
As still further aspects of the invention: in the step S1, different environments include an indoor environment and an outdoor environment, and the indoor environment includes a rest position with weaker environmental illumination intensity and a working position with normal environmental illumination intensity; the outdoor environment comprises a sunny day with stronger ambient illumination intensity and a cloudy day with relatively weaker ambient illumination intensity; wherein, the rest position with weaker ambient light intensity is taken as 0-200 lx; the working position with normal ambient light intensity is 200-1000 lx; in cloudy days with relatively weak ambient light intensity, the ambient light intensity is 1000-10000 lx; on sunny days with strong ambient illumination intensity, the ambient illumination intensity is more than 10000lx; the pictures with different colors comprise a white picture, a black picture, a blue picture, a yellow picture, a beige picture and a purple picture, wherein the background colors of the pictures are respectively selected.
As still further aspects of the invention: in the step S3, the calculation formula of the theoretical display brightness of the display panel is as follows:
Y t ＝(k+s)X t +b (1)
in the above formula (1), Y t For theoretical display brightness of display panel, X t The ambient light intensity, b is the actual display brightness of the display panel when the ambient light intensity is 0; k is a reflection characteristic coefficient under ambient light irradiation; s is a color characteristic coefficient under ambient light irradiation; since the external illumination intensity is continuously changed, if each ambient illumination intensity is recalculated the theory of the display panelDisplay brightness can cause excessive energy consumption of a display screen; therefore, the ambient light intensity is averaged in a rest position where the ambient light intensity is weak, a working position where the ambient light intensity is normal, a cloudy day where the ambient light intensity is relatively weak, and a sunny day where the ambient light intensity is strong.
As still further aspects of the invention: in the step S4, the method for manually adjusting the actual display brightness of the display panel is as follows:
s41, detecting whether a user has a key action or not through a fingerprint sensing module, judging whether the user is satisfied with the current actual display brightness of the display panel after automatic adjustment, and if not, manually calling a corresponding key to adjust the current actual display brightness to a user satisfaction value;
s42, after the current actual display brightness is manually adjusted, the timer starts to count, when the recorded time reaches a set value, the singlechip recalculates the reflection characteristic coefficient and the color characteristic coefficient under the irradiation of ambient light, saves data, adjusts the corresponding relation between the theoretical display brightness of the display panel and the ambient light intensity, stores the brightness, and calculates the theoretical display brightness according to the new reflection characteristic coefficient and the new color characteristic coefficient when the display screen is opened next time.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the display brightness of the display panel can be automatically adjusted according to different ambient light intensities and background colors by the light detection module, the brightness matching module, the brightness memory module, the singlechip and the manual adjustment module, and the display brightness of the display screen can be automatically reduced when the ambient light intensity is weaker; when the ambient light intensity is high, the display brightness of the display screen can be automatically increased; the display screen can be used by a user under the optimal screen brightness without manual operation, and the automatic adjustment effect is good and the satisfaction degree is high.
Detailed Description
The embodiment of the invention discloses a self-adjustable brightness display screen, which comprises a display panel, a light detection module, a brightness matching module, a brightness memory module, a singlechip, a manual adjustment module, a timer and a fingerprint sensing module, wherein the light detection module comprises an environment brightness detection unit and a display panel brightness detection unit, the environment brightness detection unit is used for collecting environment illumination brightness, and the display panel brightness detection unit is used for collecting display panel brightness and respectively transmitting the environment illumination brightness and a display panel brightness signal to the singlechip;
the manual adjustment module is used for manually adjusting the actual display brightness of the display panel;
the brightness matching module is used for automatically adjusting the actual display brightness of the display panel according to the background color and the ambient illumination brightness of the display panel;
the brightness memory module is used for memorizing and storing data of the relation between the brightness of the display panel and the illuminance of the ambient light;
the singlechip is used for receiving signals transmitted by the light detection module and the manual adjustment module, carrying out operation and judgment, storing operation results and sending out control signals.
Preferably, the ambient brightness detection unit comprises a filter, a photocell and an amplifier; the working method is as follows:
the method comprises the steps of selectively attenuating incident light with various wavelengths through the optical filter, receiving the incident light through the photocell, outputting a current signal, amplifying the current signal through the amplifier, and enabling the response curve of the output voltage to the light with different wavelengths to be the same as the human eyes' feeling to the light with different wavelengths, so that the acquisition of the ambient illumination brightness is realized.
Preferably, the manual adjustment module is composed of 5 keys including 1#, 2#, 3#, 4#, and 5#, wherein the 1# key manually selects red; the 2# key manually selects blue; the 3# key manually selects green; the 1# key and the 2# key are pressed simultaneously to lock the current relation; the keys 2# and 3# are pressed simultaneously, and the backlight brightness returns to the factory value; the 1# key, the 2# key and the 3# key are simultaneously pressed to lock the current backlight brightness; the 4# key manually reduces the brightness of the current color; the 5# key manually increases the current color intensity.
A use method of a self-adjustable brightness display screen comprises the following steps:
s1, randomly selecting pictures with different colors as background colors of a display panel under different environments respectively;
s2, initializing an ambient brightness detection unit and a display panel brightness detection unit; the method comprises the steps that ambient illumination brightness in different environments is respectively collected through an ambient brightness detection unit, and actual display brightness of a display panel in different environments and different background colors is respectively collected through a display panel brightness detection unit;
s3, calculating theoretical display brightness of the display panel by the singlechip according to the ambient illumination intensity and the background color, judging whether the current brightness of the display panel needs to be adjusted according to the theoretical display brightness and the actual display brightness, judging that the adjustment is not needed if the difference between the theoretical display brightness and the actual display brightness is smaller than a set threshold value, storing data, judging that the adjustment is needed if the difference between the theoretical display brightness and the actual display brightness is larger than the set threshold value, automatically adjusting the current brightness of the display panel by the brightness matching module, enabling the difference between the theoretical display brightness and the actual display brightness to be smaller than the set threshold value, and storing data;
s4, judging whether the user is satisfied with the current actual display brightness of the display panel after automatic adjustment, if not, manually adjusting the current actual display brightness of the display panel to a proper brightness, and then storing data; when the user opens the display screen again next time, the current ambient illumination intensity and the background color are automatically detected, and the brightness memory module automatically adjusts the actual display brightness of the display panel according to the stored data so as to meet the requirements of the user.
Preferably, in step S1, the different environments include an indoor environment and an outdoor environment, and the indoor environment includes a rest position with weaker environmental illumination intensity and a working position with normal environmental illumination intensity; the outdoor environment comprises a sunny day with stronger ambient illumination intensity and a cloudy day with relatively weaker ambient illumination intensity; wherein, the rest position with weaker ambient light intensity is taken as 0-200 lx; the working position with normal ambient light intensity is 200-1000 lx; in cloudy days with relatively weak ambient light intensity, the ambient light intensity is 1000-10000 lx; on sunny days with strong ambient illumination intensity, the ambient illumination intensity is more than 10000lx; the pictures with different colors comprise a white picture, a black picture, a blue picture, a yellow picture, a beige picture and a purple picture, wherein the background colors of the pictures are respectively selected.
Preferably, in step S3, the calculation formula of the theoretical display brightness of the display panel is as follows:
Y t ＝(k+s)X t +b (1)
in the above formula (1), Y t For theoretical display brightness of display panel, X t The ambient light intensity, b is the actual display brightness of the display panel when the ambient light intensity is 0; k is a reflection characteristic coefficient under ambient light irradiation; s is a color characteristic coefficient under ambient light irradiation; because the external illumination intensity is continuously changed, if the theoretical display brightness of the display panel is recalculated by each ambient illumination intensity, the energy consumption of the display screen is overlarge; therefore, the ambient light intensity is averaged in a rest position where the ambient light intensity is weak, a working position where the ambient light intensity is normal, a cloudy day where the ambient light intensity is relatively weak, and a sunny day where the ambient light intensity is strong. For example, in rest position X where the ambient light intensity is weak t Taking an average value of 100; selecting a background color to be a beige color, and taking s as 0.8; k is 0.4; b, taking 80; y is then t ＝(0.4+0.8)
×100+80＝200nits。
Preferably, in step S4, the method of manually adjusting the actual display brightness of the display panel is as follows:
s41, detecting whether a user has a key action or not through a fingerprint sensing module, judging whether the user is satisfied with the current actual display brightness of the display panel after automatic adjustment, and if not, manually calling a corresponding key to adjust the current actual display brightness to a user satisfaction value;
s42, after the current actual display brightness is manually adjusted, the timer starts to count, when the recorded time reaches a set value, the singlechip recalculates the reflection characteristic coefficient and the color characteristic coefficient under the irradiation of ambient light, saves data, adjusts the corresponding relation between the theoretical display brightness of the display panel and the ambient light intensity, stores the brightness, and calculates the theoretical display brightness according to the new reflection characteristic coefficient and the new color characteristic coefficient when the display screen is opened next time.
In order to better illustrate the technical effects of the invention, it is illustrated by the following tests:
the liquid crystal display with the brightness automatically adjusted disclosed by the patent network and the adjusting method thereof (publication No. 2006-06-28, publication No. CN 1794044A) are adopted as a first comparative example, and the method for automatically adjusting the brightness of an outdoor display screen disclosed by the patent network (publication No. 2014-02-26, publication No. CN 103606366A) is adopted as a second comparative example;
30 volunteers are selected and randomly divided into 3 groups of 10 volunteers each; in rest position with weak ambient light intensity (the ambient light intensity is between 0 and 200 lx), working position with normal ambient light intensity (the ambient light intensity is between 200 and 1000 lx), cloudy day with relatively weak ambient light intensity (the ambient light intensity is between 1000 and 10000 lx) and sunny day with strong ambient light intensity (the ambient light intensity is more than 10000 lx); the method comprises the steps of adopting the mobile phone display screens with the same model to evaluate and score the automatic brightness adjustment of the display screens, wherein the satisfaction score is 7-10 points, the general score is 4-6 points, and the dissatisfaction is 0-3 points; and the average scores were recorded in table 1 below.
Table 1 automatic brightness adjusting evaluation chart
From table 1 above, it can be derived that: in the rest position with weak ambient illumination intensity and the working position with normal ambient illumination intensity, or in the cloudy day with relatively weak ambient illumination intensity and the sunny day with strong ambient illumination intensity, the evaluation score of the automatic brightness adjustment in the embodiment is obviously higher than that of the first comparison file and the second comparison file; the automatically adjusted brightness evaluation in the examples all fall under satisfactory conditions.
The foregoing description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical solution of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (7)
1. The self-adjustable brightness display screen comprises a display panel, a light detection module, a brightness matching module, a brightness memory module, a singlechip, a manual adjustment module, a timer and a fingerprint sensing module, and is characterized in that the light detection module comprises an environment brightness detection unit and a display panel brightness detection unit, wherein the environment brightness detection unit is used for collecting environment illumination brightness, and the display panel brightness detection unit is used for collecting display panel brightness and respectively transmitting the environment illumination brightness and a display panel brightness signal to the singlechip;
the manual adjustment module is used for manually adjusting the actual display brightness of the display panel;
the brightness matching module is used for automatically adjusting the actual display brightness of the display panel according to the background color and the ambient illumination brightness of the display panel;
the brightness memory module is used for memorizing and storing data of the relation between the brightness of the display panel and the ambient illuminance;
the singlechip is used for receiving signals transmitted by the light detection module and the manual adjustment module, carrying out operation and judgment, storing operation results and sending out control signals.
2. The self-adjustable brightness display of claim 1, wherein the ambient brightness detection unit comprises a filter, a photocell, and an amplifier; the working method is as follows:
the method comprises the steps of selectively attenuating incident light with various wavelengths through the optical filter, receiving the incident light through the photocell, outputting a current signal, amplifying the current signal through the amplifier, and enabling the response curve of the output voltage to the light with different wavelengths to be the same as the human eyes' feeling to the light with different wavelengths, so that the acquisition of the ambient illumination brightness is realized.
3. The self-adjustable brightness display of claim 1 wherein the manual adjustment module is comprised of 5 keys, 1#, 2#, 3#, 4#, 5#, wherein the 1# key manually selects red; the 2# key manually selects blue; the 3# key manually selects green; the 1# key and the 2# key are pressed simultaneously to lock the current relation; the keys 2# and 3# are pressed simultaneously, and the backlight brightness returns to the factory value; the 1# key, the 2# key and the 3# key are simultaneously pressed to lock the current backlight brightness; the 4# key manually reduces the brightness of the current color; the 5# key manually increases the current color intensity.
4. A method of implementing the self-adjustable brightness display of claim 1, comprising the steps of:
s1, randomly selecting pictures with different colors as background colors of a display panel under different environments respectively;
s2, initializing an ambient brightness detection unit and a display panel brightness detection unit; the method comprises the steps that ambient illumination brightness in different environments is respectively collected through an ambient brightness detection unit, and actual display brightness of a display panel in different environments and different background colors is respectively collected through a display panel brightness detection unit;
s3, calculating theoretical display brightness of the display panel by the singlechip according to the ambient illumination intensity and the background color, judging whether the current brightness of the display panel needs to be adjusted according to the theoretical display brightness and the actual display brightness, judging that the adjustment is not needed if the difference between the theoretical display brightness and the actual display brightness is smaller than a set threshold value, storing data, judging that the adjustment is needed if the difference between the theoretical display brightness and the actual display brightness is larger than the set threshold value, automatically adjusting the current brightness of the display panel by the brightness matching module, enabling the difference between the theoretical display brightness and the actual display brightness to be smaller than the set threshold value, and storing data;
s4, judging whether the user is satisfied with the current actual display brightness of the display panel after automatic adjustment, if not, manually adjusting the current actual display brightness of the display panel to a proper brightness, and then storing data; when the user opens the display screen again next time, the current ambient illumination intensity and the background color are automatically detected, and the brightness memory module automatically adjusts the actual display brightness of the display panel according to the stored data so as to meet the requirements of the user.
5. The method of claim 4, wherein in step S1, the different environments include an indoor environment and an outdoor environment, and the indoor environment includes a rest position where the environmental illumination intensity is weak and a working position where the environmental illumination intensity is normal; the outdoor environment comprises a sunny day with stronger ambient illumination intensity and a cloudy day with relatively weaker ambient illumination intensity; the pictures with different colors comprise a white picture, a black picture, a blue picture, a yellow picture, a beige picture and a purple picture, wherein the background colors of the pictures are respectively selected.
6. The method of claim 5, wherein in step S3, the theoretical display brightness of the display panel is calculated as follows:
Y t ＝(k+s)X t +b (1)
in the above formula (1), Y t For theoretical display brightness of display panel, X t The ambient light intensity, b is the actual display brightness of the display panel when the ambient light intensity is 0; k is a reflection characteristic coefficient under ambient light irradiation; s is the color characteristic coefficient under ambient light irradiation.
7. The method of claim 4, wherein the step S4 is performed by manually adjusting the actual display brightness of the display panel as follows:
s41, detecting whether a user has a key action or not through a fingerprint sensing module, judging whether the user is satisfied with the current actual display brightness of the display panel after automatic adjustment, and if not, manually calling a corresponding key to adjust the current actual display brightness to a user satisfaction value;
s42, after the current actual display brightness is manually adjusted, the timer starts to count, when the recorded time reaches a set value, the singlechip recalculates the reflection characteristic coefficient and the color characteristic coefficient under the irradiation of ambient light, saves data, adjusts the corresponding relation between the theoretical display brightness of the display panel and the ambient light intensity, and memorizes the brightness.
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| CN117690377A (en) * | 2024-02-01 | 2024-03-12 | 深圳市研为科技有限公司 | LED display control system and terminal based on multi-sensor induction |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117690377A (en) * | 2024-02-01 | 2024-03-12 | 深圳市研为科技有限公司 | LED display control system and terminal based on multi-sensor induction |
| CN117690377B (en) * | 2024-02-01 | 2024-04-09 | 深圳市研为科技有限公司 | LED display control system and terminal based on multi-sensor induction |
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