CN112233631B - Automatic screen brightness adjusting device and method for all-solid tablet personal computer - Google Patents
Automatic screen brightness adjusting device and method for all-solid tablet personal computer Download PDFInfo
- Publication number
- CN112233631B CN112233631B CN202011169870.3A CN202011169870A CN112233631B CN 112233631 B CN112233631 B CN 112233631B CN 202011169870 A CN202011169870 A CN 202011169870A CN 112233631 B CN112233631 B CN 112233631B
- Authority
- CN
- China
- Prior art keywords
- brightness
- preference
- screen
- user
- coefficient
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- G09G3/34—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
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
A method for automatically adjusting the brightness of a tablet computer and the tablet computer adopting the method are provided, wherein the method comprises the following steps: detecting the current environment brightness; inquiring preference coefficients and calculating the screen brightness in real time according to the current environment brightness and the preference coefficients; initializing the screen and adjusting the screen brightness in real time according to the calculated screen brightness. According to the method and the equipment provided by the invention, visual fatigue of a user on vision and damage to the vision of the user caused by the mismatching problem of the screen brightness and the slow-down illumination intensity due to the change of the environmental brightness can be effectively solved, the adjustment of the screen brightness is simpler, more convenient and more intelligent, and better use experience is brought to the user.
Description
Technical Field
The invention relates to the field of automatic brightness adjustment application of liquid crystal screens of general computing platforms, in particular to a method for adjusting the brightness of liquid crystal screens of various military handheld, vehicle-mounted and other outdoor computers.
Background
The all-solid-state tablet personal computer has a flexible use mode and is widely applied to the military field. The device is mainly applied to monitoring and controlling equipment information and is usually in an outdoor use mode for a long time. Outdoor illumination environment is complicated changeable, screen brightness crosses lowly or screen brightness is too high under the low light level environment under the hi-lite environment, the user discerns the screen content can lead to user's visual fatigue, can cause the injury of certain degree to the human eye for a long time, the user can be through the button adjustment of inherent screen brightness, but usually because of service environment's illumination condition is changeable, if guarantee all the time with suitable screen brightness, then need frequent modification equipment's screen brightness. Therefore, there is a need for an apparatus and method for automatically adjusting the brightness according to the intensity of the ambient light and the user's requirement.
Disclosure of Invention
In order to solve the above problems, the present invention provides an automatic adjusting method for screen brightness of a tablet computer and a fully-fixed tablet computer using the method, wherein the method includes the following steps:
detecting the current environment brightness;
inquiring preference coefficients and calculating the screen brightness in real time according to the current environment brightness and the preference coefficients;
initializing the screen and adjusting the screen brightness in real time according to the calculated screen brightness.
In some embodiments, the initialization screen comprises: digitizing the brightness adjusting range of the screen, and determining the numerical values of the lowest brightness and the highest brightness of the screen brightness adjustment.
In some embodiments, the detecting the current ambient brightness comprises: the external light intensity within a certain intensity range is converted into a numerical signal within a certain range.
In some embodiments, the preference coefficients include: the preference coefficient is preset and the preference coefficient is set by adopting an adjusting algorithm according to the preference of the user.
In some embodiments, the predetermined preference factors include:
a preset environment brightness adjusting coefficient k;
and adjusting the brightness b according to the minimum brightness set by the minimum brightness of the screen.
In some embodiments, the preference coefficients set by the adjustment algorithm according to the user's own preference include:
a brightness adjusting coefficient k' reset according to the preference of the user;
the minimum adjusted brightness b' is reset according to the preference of the user.
In some embodiments, the adjusting algorithm for setting the preference coefficient according to the preference of the user comprises:
the algorithm for calculating the minimum adjusted brightness is as follows:
the algorithm for calculating the brightness adjustment coefficient is as follows:
in some embodiments, further comprising: the preference coefficients set by adopting an adjusting algorithm according to the preference of the user comprise a plurality of groups of preference coefficients set according to the gradient of the ambient brightness; the adjusting range of the preference coefficient does not exceed the adjusting range of the screen brightness.
In some embodiments, the method further comprises the following steps that the user sets the preference coefficient according to the preference of the user:
responding to a screen brightness preference coefficient setting request initiated by a user;
recording the current environment brightness;
recording the screen brightness after the preset confirmation time after the user sets;
and calculating and storing the preference coefficient of the user under the current ambient brightness gradient through a preference coefficient adjusting algorithm.
The invention also provides a full-solid tablet computer with the method, which comprises the following modules:
at least one processor; and
a memory storing computer instructions executable on the processor, the instructions when executed by the processor implementing the steps of the method described above.
According to the automatic screen brightness adjusting method for the tablet personal computer and the all-solid tablet personal computer using the method, visual fatigue of a user and damage to the vision of the user caused by the mismatching problem of screen brightness and slow-falling illumination intensity due to the change of the ambient brightness can be effectively solved, the screen brightness is adjusted more conveniently and intelligently, and better use experience is brought to the user.
Drawings
In order to illustrate the embodiments of the present invention or the solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other embodiments can be obtained by those skilled in the art without inventive effort from these drawings.
FIG. 1 is a flow chart of the method of the present invention.
Fig. 2 is a flow chart of an embodiment of brightness adjustment according to the present invention.
Fig. 3 is a flow chart of an embodiment of brightness setting according to the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention are described in further detail below with reference to specific embodiments and the accompanying drawings.
As shown in fig. 1, an aspect of the present invention provides an automatic adjusting method for screen brightness of a tablet computer, including the following steps:
s1, detecting the brightness of the current environment;
s2, inquiring a preference coefficient and calculating the screen brightness in real time according to the current environment brightness and the preference coefficient;
and S3, initializing the screen and adjusting the screen brightness in real time according to the calculated screen brightness.
In step S1, in some embodiments, the ambient light sensor voltage in the dark is used as the initial value, the luminance sensor in the daytime is used as the final value, the range between the final value and the initial value of the luminance sensor voltage is mapped as a percentage, the initial voltage value is subtracted from the specific current voltage value of the luminance sensor, and the range is divided to obtain the current ambient light percentage as the current ambient light.
In step S2, a screen brightness calculation formula is acquired: and Y is kx + b and calculating the real-time screen brightness voltage.
Wherein, Y is the screen brightness adjusting voltage, k is the ambient brightness adjusting coefficient, b is the minimum adjusting brightness of the screen brightness, and x is the ambient brightness data obtained from the brightness sensor.
The range of the argument x in the screen calculation formula is a continuous value of 0 to 1, i.e., the sensor voltage variation range is mapped between 0 and 1.
In some embodiments, the preset screen adjustment coefficient k is obtained by substituting the screen calculation formula Y ═ kx + b, the minimum value and the maximum value of the screen voltage adjustment range as the adjustment range of Y, and the minimum value and the maximum value of the voltage values of the brightness sensors in the dark environment and in the sunlight as the minimum value and the maximum value of x.
In some embodiments, b in the screen brightness calculation formula is the minimum voltage of the screen brightness.
In some embodiments, as shown in fig. 3, the method further includes that the user can adjust the preference coefficients k and b of the screen brightness according to the preference of the user, and the steps are as follows:
s301, pressing a screen brightness adjusting button by a user;
s302, setting screen brightness by a user according to the current brightness;
s303, responding to the end of the screen brightness adjusting operation of the user and starting timing;
s304, after the preset time, the screen brightness is not changed any more, and the screen brightness is considered to be adjusted completely;
s305, inquiring the voltage of the screen with the current screen brightness;
s306, according to the algorithm for calculating the minimum adjustment brightness:
calculating the minimum adjusting brightness b' suitable for the current user;
according to the algorithm for calculating the brightness adjustment coefficient:
calculating a brightness adjusting coefficient k' suitable for the current user;
wherein xtRepresenting the current ambient brightness, y'tRepresenting the screen brightness set by the user, k representing a preset ambient brightness adjustment factor, ytThe screen adjustment voltage calculated by the preset preference coefficient under the current environment brightness condition is represented.
S307, storing the calculated preference coefficient into a device memory;
and S308, adjusting the screen brightness.
In some embodiments, the brightness adjustment preference factor set by the user is not applicable to the full range of brightness adjustments, considering that the perception of screen brightness and ambient brightness by human vision is not linear. Therefore, the preference coefficient adjusted by the user does not act on the whole brightness adjustment range, for example, under the condition of the ambient brightness of 30% of the preset brightness adjustment range, the user resets the screen brightness meeting the self preference, and a group of brightness adjustment preference coefficients are obtained according to the set of brightness adjustment preference coefficients; if the brightness is raised to 80% of the predetermined brightness range as the ambient brightness is changed, the user sets the screen brightness conforming to itself again, thereby obtaining a set of brightness adjustment preference coefficients again. In this case, both sets of preference coefficients for brightness adjustment would be saved. When automatic adjustment is carried out, the automatic adjustment range is defined for two groups of preference coefficients by taking 55% of the middle value of 30% and 80% of the current environment brightness of the screen brightness adjusted twice by the user as a boundary. For multiple sets of preference coefficients, the intermediate value of the current ambient brightness of two adjacent sets of preference coefficients is taken as the boundary of the adjustment range according to the method.
In step S3, the real-time adjustment of the screen brightness according to the screen brightness adjustment voltage calculated in step S2 includes:
checking the current screen voltage;
judging the difference between the current screen voltage and the screen voltage change obtained by calculation;
responding to the violent change difference, slowly adjusting the voltage of the screen brightness to slowly approach the calculated voltage value;
and responding to the small variation difference, and directly adjusting the screen voltage to the calculated voltage value.
Fig. 2 shows a preferred embodiment of the present invention, which comprises the following steps:
s201, electrifying and initializing;
s202, opening the liquid crystal screen;
s203, inquiring the ambient brightness;
s204, calculating brightness;
s205, inquiring the current screen brightness;
s206, judging whether brightness adjustment is needed;
and S207, adjusting the screen brightness.
In step S201, all pre-processing for automatic adjustment of screen brightness is completed, including obtaining preference coefficients.
In step S204, a corresponding brightness preference coefficient is selected according to the gradient of the current environment brightness, and the adjustment voltage of the screen brightness of the current brightness environment is calculated according to the environment brightness and the preference coefficient
In step S205, the screen voltage of the current screen brightness is queried.
In step S206, the intensity of the variation difference is determined by comparing the current screen voltage with the screen adjustment voltage obtained by calculation, if the difference between the two is within 1% of the adjustment range of the screen adjustment voltage, the screen brightness does not need to be adjusted, and the process goes to step S203, otherwise, the screen brightness needs to be adjusted, and step S207 is executed.
In step S207, in response to the fact that the intensity of the screen voltage variation difference determined in step S206 is greater than 5%, the adjustment voltage of the screen brightness is slowly approximated to the adjustment voltage obtained by calculation, so that the brightness variation of the screen tends to be smooth, and in response to the fact that the intensity of the screen voltage variation difference is less than 5% and greater than 1%, the adjustment voltage value is directly used as the screen voltage for adjustment; step S203 is executed after the screen brightness adjustment is finished.
In some embodiments of the present invention, when the luminance sensor voltage exceeds the predetermined luminance sensor voltage due to a change in the luminance of the environment, the luminance sensor voltage is uniformly calculated according to the predetermined luminance sensor maximum voltage.
In another aspect of the present invention, a fully-solid tablet computer based on the foregoing method is further provided, including:
at least one processor; and
a memory storing computer instructions executable on the processor, the instructions when executed by the processor implementing the steps of the method described above.
In some embodiments, the all-solid tablet computer may include the following modules:
the main control module is configured for inquiring the preference coefficient according to the method, calculating the screen brightness in real time according to the environment brightness and the preference coefficient, and calculating and setting the user preference coefficient;
the backlight driving module is configured for changing the screen brightness in real time according to the calculated screen brightness;
and the sensor module is configured for acquiring the external light condition.
According to the automatic screen brightness adjusting method for the tablet personal computer and the all-solid tablet personal computer using the method, visual fatigue of a user and damage to the vision of the user caused by the mismatching problem of screen brightness and slow-falling illumination intensity due to the change of the ambient brightness can be effectively solved, the screen brightness is adjusted more conveniently and intelligently, and better use experience is brought to the user.
Claims (6)
1. An automatic adjusting method for screen brightness of a tablet computer is characterized by comprising the following steps:
detecting the current environment brightness;
inquiring a preference coefficient and calculating the screen brightness in real time according to the current environment brightness and the preference coefficient;
initializing the screen and adjusting the screen brightness in real time according to the calculated screen brightness,
wherein the preference coefficient comprises a preset preference coefficient and a preference coefficient set by adopting an adjusting algorithm according to the preference of the user,
the preset preference coefficients include:
a preset environment brightness adjusting coefficient k;
the minimum adjustment brightness b is set according to the minimum brightness of the screen,
the preference coefficient set by adopting the adjusting algorithm according to the preference of the user comprises the following steps:
a brightness adjusting coefficient k' reset according to the preference of the user;
the minimum adjusted brightness b 'reset according to the user's preference,
the adjustment algorithm comprises:
the algorithm for calculating the minimum adjusted brightness is as follows:
the algorithm for calculating the brightness adjustment coefficient is as follows:
wherein,
xtwhich represents the brightness of the current environment,
y′tindicating the screen brightness set by the user,
k represents a preset ambient brightness adjustment coefficient,
ytthe screen adjustment voltage is calculated by the preset preference coefficient under the current environment brightness condition.
2. The method of claim 1, wherein initializing the screen comprises:
digitizing the brightness adjusting range of the screen, and determining the numerical values of the lowest brightness and the highest brightness of the screen brightness adjustment.
3. The method of claim 1, wherein the detecting the current ambient brightness comprises:
the external light intensity within a certain intensity range is converted into a numerical signal within a certain range.
4. The method according to claim 1, wherein the preference coefficients set by the adjustment algorithm according to the user's own preference include a plurality of sets of preference coefficients set according to the gradient of the ambient brightness; the adjusting range of the preference coefficient does not exceed the adjusting range of the screen brightness.
5. The method of claim 1, further comprising setting the preference coefficient according to the preference of the user:
responding to a screen brightness preference coefficient setting request initiated by a user;
recording the current environment brightness;
recording the screen brightness after the preset confirmation time after the user sets;
and calculating and storing the preference coefficient of the user under the current ambient brightness gradient through a preference coefficient adjusting algorithm.
6. An apparatus for performing the method of any of the preceding claims 1-5, comprising:
at least one processor; and
a memory storing computer instructions executable on the processor, the instructions when executed by the processor implementing the steps of the method of any one of claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011169870.3A CN112233631B (en) | 2020-10-28 | 2020-10-28 | Automatic screen brightness adjusting device and method for all-solid tablet personal computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011169870.3A CN112233631B (en) | 2020-10-28 | 2020-10-28 | Automatic screen brightness adjusting device and method for all-solid tablet personal computer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112233631A CN112233631A (en) | 2021-01-15 |
| CN112233631B true CN112233631B (en) | 2022-05-31 |
Family
ID=74110751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011169870.3A Active CN112233631B (en) | 2020-10-28 | 2020-10-28 | Automatic screen brightness adjusting device and method for all-solid tablet personal computer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112233631B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114915705A (en) * | 2021-02-09 | 2022-08-16 | 英业达科技有限公司 | Fill light method and computer system thereof |
| CN115713922A (en) * | 2022-11-18 | 2023-02-24 | 樊国超 | Method, device and system for adjusting brightness of light-emitting device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106331346A (en) * | 2016-08-24 | 2017-01-11 | 珠海格力电器股份有限公司 | Contrast adjusting method and device, display screen with device and portable equipment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100955258B1 (en) * | 2008-05-13 | 2010-04-30 | 박재현 | Display brightness control method |
| CN102968979B (en) * | 2012-11-12 | 2015-06-17 | 广东欧珀移动通信有限公司 | Screen brightness scheduling method based on curve fitting |
| CN105632455B (en) * | 2014-10-27 | 2018-06-19 | 深圳富泰宏精密工业有限公司 | Screen intensity automatic regulating system and method |
| CN105869603A (en) * | 2015-09-22 | 2016-08-17 | 乐视致新电子科技（天津）有限公司 | Screen brightness regulation method and device |
| CN107016952A (en) * | 2017-04-19 | 2017-08-04 | 深圳市金立通信设备有限公司 | A kind of screen luminance adjustment method and terminal |
| CN108307073B (en) * | 2018-01-31 | 2021-08-10 | 努比亚技术有限公司 | Screen brightness adjusting method, mobile terminal and computer readable storage medium |
-
2020
- 2020-10-28 CN CN202011169870.3A patent/CN112233631B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106331346A (en) * | 2016-08-24 | 2017-01-11 | 珠海格力电器股份有限公司 | Contrast adjusting method and device, display screen with device and portable equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112233631A (en) | 2021-01-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105632447B (en) | The display brightness method of adjustment and device of a kind of liquid crystal display | |
| CN104715736B (en) | The backlight Automatic adjustment method and device of a kind of electronic equipment | |
| CN112289280B (en) | Screen brightness adjusting method and device, computer readable medium and electronic equipment | |
| CN113192470B (en) | Screen adjusting method and device, storage medium and electronic equipment | |
| CN112233631B (en) | Automatic screen brightness adjusting device and method for all-solid tablet personal computer | |
| CN111867447B (en) | Electronic device for monitoring eye health of user and operation method thereof | |
| CN110211548A (en) | Adjust the method and electronic equipment of display brightness | |
| US20160110846A1 (en) | Automatic display image enhancement based on user's visual perception model | |
| CN107945766A (en) | Display device | |
| CN115443645B (en) | Screen brightness adjusting method, terminal and storage medium | |
| US10013924B2 (en) | Method for adjusting backlight brightness and electronic device | |
| KR102143487B1 (en) | Device for automatically controlling brightness of computer moniter based on artificial inteligence and method thereof | |
| CN105204734A (en) | Brightness control method and system | |
| CN105489192A (en) | Display with image automatic optimization function and image adjusting method thereof | |
| CN106251831A (en) | A kind of screen display lightness regulating method based on ambient light and system | |
| CN106157932B (en) | The control method and device of screen intensity | |
| KR20100085588A (en) | Display apparatus and control method thereof | |
| CN111736793B (en) | Screen light adjusting method and device | |
| CN104376835A (en) | Method for adjusting brightness and electronic device | |
| CN112908272A (en) | Display screen brightness adjusting method and device and display screen | |
| CN106453965B (en) | Self-adaptive adjusting method and device for terminal backlight | |
| CN109410813B (en) | Adjusting method and device of touch whiteboard | |
| EP3779953A1 (en) | Backlight control method, device, and computer readable storage medium | |
| CN118038835A (en) | Display control system and method for display screen based on data analysis | |
| CN114023284B (en) | Education tablet personal computer system with eye protection display function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 250104 No. 2877 Kehang Road, Sun Village Town, Jinan High-tech Zone, Shandong Province Applicant after: Chaoyue Technology Co.,Ltd. Address before: 250104 No. 2877 Kehang Road, Sun Village Town, Jinan High-tech Zone, Shandong Province Applicant before: SHANDONG CHAOYUE DATA CONTROL ELECTRONICS Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |