CN114023284A - Education tablet personal computer system with eye protection display function - Google Patents
Education tablet personal computer system with eye protection display function Download PDFInfo
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- CN114023284A CN114023284A CN202111291393.2A CN202111291393A CN114023284A CN 114023284 A CN114023284 A CN 114023284A CN 202111291393 A CN202111291393 A CN 202111291393A CN 114023284 A CN114023284 A CN 114023284A
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
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- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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Abstract
The invention discloses an educational tablet computer system with eye protection display, which comprises: the system comprises a first detection module, a second detection module, a first coefficient module, a second coefficient module, a control module and an eye protection adjustment module, wherein the second detection module is used for detecting the using environment brightness value of the education tablet computer, the first coefficient module is used for determining an initial brightness setting coefficient according to the state of a display screen detected by the first detection module, the second coefficient module is used for determining a brightness adjustment coefficient according to the environment brightness value, and the control module is used for determining an eye protection display coefficient according to the initial brightness setting coefficient and the brightness adjustment coefficient and controlling the eye protection adjustment module to carry out eye protection display adjustment through the eye protection display coefficient; the first detection module can determine the difference of brightness display and determine the initial set brightness value of the education flat plate.
Description
Technical Field
The invention belongs to the technical field of electronic equipment, and particularly relates to an eye-protection display education tablet computer system.
Background
With the advent of the digital era and the popularization of terminal equipment such as mobile phones, terminals or tablets, the longer the time for people to use the terminals is, the greater the possibility of eye damage is caused while people enjoy the convenience brought by the terminals, and particularly, for the current situation that many students begin to use education tablet computers to learn, how to protect the eyes of the students while the students use the tablet computers to learn, the important improvement direction for improving the user experience of the education tablet computers is provided; in the prior art, some technical schemes improve the eye protection function of the tablet by adjusting the display brightness of the tablet, and the technical schemes can improve the eye protection effect of the tablet computer to a certain extent more or less.
Disclosure of Invention
The invention discloses an education tablet computer system with eye protection display, which comprises a first detection module, a second detection module, a first coefficient module, a second coefficient module, a control module and an eye protection adjusting module, wherein the first detection module is arranged on the front side of a display screen of an education tablet computer, the upper side surface of the second detection module is used for detecting the state of the display screen of the education tablet computer and determining the initial set brightness value of the education tablet computer according to the state, the second detection module is used for detecting the use environment brightness value of the education tablet computer, the first coefficient module is used for determining the initial brightness setting coefficient according to the state of the display screen detected by the first detection module, the second coefficient module is used for determining the brightness adjusting coefficient according to the environment brightness value, and the control module is used for determining the eye protection display coefficient according to the initial brightness setting coefficient and the brightness adjusting coefficient, the eye protection display coefficient controls the eye protection adjusting module to carry out eye protection display adjustment; the first detection modules comprise at least 3 modules, are arranged on the side edge of the display screen and are used for determining the difference of brightness display according to different brightness of different display areas of the display screen and determining the initial set brightness value of the education flat plate.
The utility model provides an education tablet computer system that eyeshield shows, first detection module includes first luminance detecting element, second luminance detecting element and third luminance detecting element to the overlook face of education tablet computer's display screen is the front, divides the left side of display screen is regional for A, first luminance detecting element is placed to the A region, and the downside is regional for B, second luminance detecting element is placed to the B region, and the right side is regional for C, third luminance detecting element is placed to the C region, and the upside is regional for D, second detection module sets up in the shell in the regional outside of D.
According to the education tablet computer system capable of achieving eye protection display, the first detection unit, the second detection unit and the third detection unit are used for detecting the light reflection degree of the screen, and the initial set brightness value of the education tablet computer in the current use environment is determined according to the light reflection degree.
The education tablet computer system that eyeshield was shown, it specifically includes to determine the dull and stereotyped initial set luminance value of education:
the second detection module detects first environment brightness, the first environment brightness is sent to the control module, the control module determines whether the environment is in a dark environment or a non-dark environment at the moment, and the initial setting brightness value is set in different modes according to the dark environment or the non-dark environment.
According to the eye-protection display education tablet computer system, if the system is in a dark environment, a first preset brightness value is directly called to light the display screen, after the screen is lighted, the display brightness values of different areas of the current screen are detected through the first detection module, area division detection is carried out according to the first brightness detection unit, the second brightness detection unit and the third brightness detection unit, and the first brightness value, the second brightness value and the third brightness value are respectively output to the first coefficient module;
the first coefficient module performs pairwise difference according to the first brightness value, the second brightness value and the third brightness value to obtain an absolute value of a brightness difference value, judges whether the absolute value of the brightness difference value is larger than a first set brightness difference value or not, if not, sums the first brightness value, the second brightness value and the third brightness value to obtain a brightness average value, uses the brightness average value as an initial brightness value to obtain a first adjusting coefficient, adjusts the display brightness of different pixels of a screen through the first adjusting coefficient to enable the absolute value of the brightness difference value to be smaller than the first set brightness difference value, uses the display brightness in the process as the initial set brightness value of the current dark environment, and adjusts the display screen from the first preset brightness value to the initial set brightness value of the current dark environment for display; if so, searching the minimum value of the brightness values in the first brightness value, the second brightness value and the third brightness value, taking the minimum value of the brightness values as an initial set brightness value, and obtaining a first adjusting coefficient;
the first preset brightness value is a low brightness display value and is an initial setting default test value.
The eye-protection display education tablet personal computer system is characterized in that before the initial set brightness value is used for displaying, whether the environment brightness is obviously changed or not is judged after the initial set brightness value is used for displaying is calculated, if yes, the initial set brightness value is compensated, the initial set brightness value is multiplied by a compensation coefficient, the compensated initial set brightness value is replaced by the previous initial set brightness value, and the compensation coefficient is a constant larger than 1.
If the education tablet computer system capable of eye protection display is in a non-dark environment, the brightness values of the reflected environments of different areas of the current screen are detected through the first detection module under the condition that the display screen is not lightened, the area detection is carried out according to the first brightness detection unit, the second brightness detection unit and the third brightness detection unit, and the first reflection brightness value, the second reflection brightness value and the third reflection brightness value are respectively output to the first coefficient module;
the first coefficient module calculates according to the first reflection brightness value, the second reflection brightness value and the third reflection brightness value to obtain a first adjusting coefficient, and transmits the first adjusting coefficient to the control module;
the calculation specifically includes: performing pairwise difference on the first reflection brightness value, the second reflection brightness value and the third reflection brightness value to obtain a reflection brightness difference value, judging whether the reflection brightness difference value is larger than a preset reflection brightness difference value, if not, summing the first reflection brightness value, the second reflection brightness value and the third positive reflection brightness value to obtain an average value, setting a first reference value by taking the average value as an initial setting brightness value, and searching a corresponding initial setting brightness value by using the first reference value;
if yes, searching the maximum value of the reflection brightness values in the first reflection brightness value, the second reflection brightness value and the third reflection brightness value, setting a second reference value by taking the maximum value of the reflection brightness values as an initial set brightness value, and searching the corresponding initial brightness value by the second reference value.
The educational tablet computer system for eye protection display comprises: determining a reference environment brightness value through the initial brightness setting coefficient, obtaining an environment brightness difference value by subtracting the current environment brightness value from the reference environment brightness value through the current environment brightness value of the brightness adjusting coefficient, judging whether the absolute value of the environment brightness difference value is greater than a preset environment brightness value, and if so, dividing the absolute value of the environment brightness difference value by the reference environment brightness value to obtain an adjusted brightness coefficient;
if the adjusting brightness coefficient is larger than a first preset adjusting brightness coefficient, dividing the absolute value of the environment brightness difference by the first adjusting coefficient to obtain a first adjusting step length, if the current environment brightness value is larger than the reference environment brightness value, increasing the screen brightness value according to the first adjusting step length on the basis of the reference environment brightness value, and if the current environment brightness value is smaller than the reference environment brightness value, decreasing the screen brightness value according to the first adjusting step length on the basis of the reference environment brightness value;
if the adjusting brightness coefficient is larger than a second preset adjusting brightness coefficient and smaller than a first preset adjusting brightness coefficient, dividing the absolute value of the ambient brightness difference by the second adjusting coefficient to obtain a second adjusting step length, if the current ambient brightness value is larger than the reference ambient brightness value, increasing the screen brightness value according to the second adjusting step length on the basis of the reference ambient brightness value, and if the current ambient brightness value is smaller than the reference ambient brightness value, decreasing the screen brightness value according to the second adjusting step length on the basis of the reference ambient brightness value;
if the adjustment brightness coefficient is smaller than a second preset adjustment brightness coefficient, dividing the absolute value of the ambient brightness difference by a third adjustment coefficient to obtain a third adjustment step length, if the current ambient brightness value is larger than the reference ambient brightness value, increasing the screen brightness value according to the third adjustment step length on the basis of the reference ambient brightness value, and if the current ambient brightness value is smaller than the reference ambient brightness value, decreasing the screen brightness value according to the third adjustment step length on the basis of the reference ambient brightness value;
the first preset adjusting brightness coefficient is larger than a second preset adjusting brightness coefficient, and the second preset adjusting brightness coefficient is larger than a third preset adjusting brightness coefficient; the first adjustment coefficient is greater than the second adjustment coefficient, and the second adjustment coefficient is greater than the third adjustment coefficient;
if the absolute value of the environment brightness difference is smaller than the preset environment brightness value and larger than zero, dividing the absolute value of the environment brightness difference by 2 to obtain a fourth adjusting step length, if the current environment brightness value is larger than the reference environment brightness value, increasing the screen brightness value according to the fourth adjusting step length on the basis of the reference environment brightness value, and if the current environment brightness value is smaller than the reference environment brightness value, decreasing the screen brightness value according to the fourth adjusting step length on the basis of the reference environment brightness value.
The invention provides an education tablet computer system with eye protection display, which is used for determining different initial display brightness according to different using environments of a tablet computer and adjusting the tablet computer to carry out eye protection display by matching with the environment brightness value. One of the main improvement points of the invention is that the first detection module and the first coefficient module are arranged, and through the cooperation of the first detection module and the first coefficient module, the brightness display of the display pixels in different areas of the display screen of the flat panel can be determined according to different use environments of the flat panel, so as to determine the initial brightness display of the screen, and the defect that in the prior art, the initial brightness display is unchanged in one layer and is set according to a set value of a user, and no obvious subdivision degree exists; as another improvement of the invention, the adjusted brightness value difference is determined through the cooperation of the first detection module and the second detection module, and the step length of the adjusted brightness is determined, so that the visual discomfort caused by too fast brightness adjustment when the ambient brightness changes is avoided; as a further improvement of the invention, the determined initial display brightness value is set differently depending on dark and non-dark environments, especially in non-dark environments, considering the discomfort of the screen to eyes caused by the reflection of light due to the brightness, the eye protection display of the screen is adjusted through the reflection degree, in a dark environment, the display brightness of the screen is readjusted in consideration of the initial brightness value and the change of the ambient brightness caused by the display of the screen, before the display is carried out by the initial set brightness value, the calculation is carried out to judge whether the environment brightness is obviously changed or not after the display is carried out by the initial set brightness value, if so, the initial setting brightness value is compensated, the initial setting brightness is multiplied by the compensation coefficient, the compensated initial setting brightness value is replaced by the previous initial setting brightness value, the compensation coefficient is a constant larger than 1, and omnibearing fine eye protection screen display can be carried out.
Drawings
Fig. 1 is a schematic diagram of an educational tablet computer system with eye protection display according to the present invention.
Fig. 2 is a schematic top front view of an educational tablet in accordance with the present invention.
FIG. 3 is a diagram illustrating the determination of an initial set brightness value for an educational plate in accordance with the present invention.
FIG. 4 is a schematic view of the process of setting the initial brightness of the educational platform of the present invention in a dark environment;
FIG. 5 is a flow chart illustrating the initial brightness setting process of the educational platform of the present invention in a non-dark environment.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
As shown in fig. 1, a schematic diagram of an educational tablet computer system with eye protection display is provided, which includes: a first detection module, a second detection module, a first coefficient module, a second coefficient module, a control module and an eye protection adjusting module, the first detection module is arranged on the front side of the display screen of the education tablet computer, the upper side surface of the second detection module, the first detection module is used for detecting the state of the display screen of the education tablet computer and determining the initial set brightness value of the education tablet according to the state, the second detection module is used for detecting the brightness value of the use environment of the education tablet computer, the first coefficient module is used for determining an initial brightness setting coefficient according to the state of the display screen detected by the first detection module, the second coefficient module is used for determining a brightness adjusting coefficient according to an environment brightness value, the control module is used for determining an eye protection display coefficient according to the initial brightness setting coefficient and the brightness adjusting coefficient, the eye protection display coefficient controls the eye protection adjusting module to carry out eye protection display adjustment; the first detection modules comprise at least 3 modules, are arranged on the side edge of the display screen and are used for determining the difference of brightness display according to different brightness of different display areas of the display screen and determining the initial set brightness value of the education flat plate.
Fig. 2 is a schematic top view of the front of an educational tablet computer according to the present invention. The method comprises the following steps: a first brightness detection unit 1, a second brightness detection unit 2, a third brightness detection unit 3, a second detection module 4, a display screen 5 and a housing 6.
The first detection module comprises a first brightness detection unit 1, a second brightness detection unit 2 and a third brightness detection unit 3, the overlooking surface of a display screen 5 of the education tablet computer is used as the front surface, the left side of the display screen is divided into an area A, the first brightness detection unit is placed in the area A, the area on the lower side is an area B, the second brightness detection unit is placed in the area B, the area on the right side is an area C, the third brightness detection unit is placed in the area C, the area on the upper side is an area D, and the second detection module 4 is arranged in a shell 6 on the outer side of the area D.
According to the education tablet computer system capable of achieving eye protection display, the first detection unit, the second detection unit and the third detection unit are used for detecting the light reflection degree of the screen, and the initial set brightness value of the education tablet computer in the current use environment is determined according to the light reflection degree.
As shown in fig. 3, the schematic diagram for determining the initial set brightness value of the education plate according to the present invention specifically includes:
the second detection module detects first environment brightness, the first environment brightness is sent to the control module, the control module determines whether the environment is in a dark environment or a non-dark environment at the moment, and the initial setting brightness value is set in different modes according to the dark environment or the non-dark environment.
FIG. 4 is a schematic view illustrating the process of setting the initial brightness of the education plate in a dark environment according to the present invention; directly calling a first preset brightness value to light the display screen, detecting the display brightness values of different areas of the current screen through the first detection module after the screen is lighted, performing regional detection according to the first brightness detection unit, the second brightness detection unit and the third brightness detection unit, and respectively outputting the first brightness value, the second brightness value and the third brightness value to the first coefficient module;
the first coefficient module performs pairwise difference according to the first brightness value, the second brightness value and the third brightness value to obtain an absolute value of a brightness difference value, judges whether the absolute value of the brightness difference value is larger than a first set brightness difference value or not, if not, sums the first brightness value, the second brightness value and the third brightness value to obtain a brightness average value, uses the brightness average value as an initial brightness value to obtain a first adjusting coefficient, adjusts the display brightness of different pixels of a screen through the first adjusting coefficient to enable the absolute value of the brightness difference value to be smaller than the first set brightness difference value, uses the display brightness in the process as the initial set brightness value of the current dark environment, and adjusts the display screen from the first preset brightness value to the initial set brightness value of the current dark environment for display; if so, searching the minimum value of the brightness values in the first brightness value, the second brightness value and the third brightness value, taking the minimum value of the brightness values as an initial set brightness value, and obtaining a first adjusting coefficient;
the first preset brightness value is a low brightness display value and is an initial setting default test value.
The eye-protection display education tablet personal computer system is characterized in that before the initial set brightness value is used for displaying, whether the environment brightness is obviously changed or not is judged after the initial set brightness value is used for displaying is calculated, if yes, the initial set brightness value is compensated, the initial set brightness value is multiplied by a compensation coefficient, the compensated initial set brightness value is replaced by the previous initial set brightness value, and the compensation coefficient is a constant larger than 1.
Preferably, the compensation factor is 1.1.
FIG. 5 is a schematic view illustrating the process of setting the initial brightness of the education plate in the non-dark environment according to the present invention; if the education tablet computer system capable of eye protection display is in a non-dark environment, the brightness values of the reflected environments of different areas of the current screen are detected through the first detection module under the condition that the display screen is not lightened, the area detection is carried out according to the first brightness detection unit, the second brightness detection unit and the third brightness detection unit, and the first reflection brightness value, the second reflection brightness value and the third reflection brightness value are respectively output to the first coefficient module;
the first coefficient module calculates according to the first reflection brightness value, the second reflection brightness value and the third reflection brightness value to obtain a first adjusting coefficient, and transmits the first adjusting coefficient to the control module;
preferably, because the light shines on the screen, there is the reflex action on the screen surface, present screen is along with definition and pad pasting reason, cause the reflex action of screen obvious, and this kind of light transmission can cause to a certain extent when looking over the screen, the light of screen and the light that gets into user's eyes are actual different, and because only use ambient light intensity, also can't accurately reflect the light that gets into the actual screen display of eyes, cause the accuracy that the eyeshield shows to have certain error, shine the reflection value of screen through detecting light, compensate to simple detection ambient light, improve the accuracy of eyeshield, it needs to explain that, it adopts the conventional device in this field to detect light transmission, equipment such as the transmission of luminous intensity.
The calculation specifically includes: performing pairwise difference on the first reflection brightness value, the second reflection brightness value and the third reflection brightness value to obtain a reflection brightness difference value, judging whether the reflection brightness difference value is larger than a preset reflection brightness difference value, if not, summing the first reflection brightness value, the second reflection brightness value and the third positive reflection brightness value to obtain an average value, setting a first reference value by taking the average value as an initial setting brightness value, and searching a corresponding initial setting brightness value by using the first reference value;
if yes, searching the maximum value of the reflection brightness values in the first reflection brightness value, the second reflection brightness value and the third reflection brightness value, setting a second reference value by taking the maximum value of the reflection brightness values as an initial set brightness value, and searching the corresponding initial brightness value by the second reference value.
The educational tablet computer system for eye protection display comprises: determining a reference environment brightness value through the initial brightness setting coefficient, obtaining an environment brightness difference value by subtracting the current environment brightness value from the reference environment brightness value through the current environment brightness value of the brightness adjusting coefficient, judging whether the absolute value of the environment brightness difference value is greater than a preset environment brightness value, and if so, dividing the absolute value of the environment brightness difference value by the reference environment brightness value to obtain an adjusted brightness coefficient;
if the adjusting brightness coefficient is larger than a first preset adjusting brightness coefficient, dividing the absolute value of the environment brightness difference by the first adjusting coefficient to obtain a first adjusting step length, if the current environment brightness value is larger than the reference environment brightness value, increasing the screen brightness value according to the first adjusting step length on the basis of the reference environment brightness value, and if the current environment brightness value is smaller than the reference environment brightness value, decreasing the screen brightness value according to the first adjusting step length on the basis of the reference environment brightness value;
if the adjusting brightness coefficient is larger than a second preset adjusting brightness coefficient and smaller than a first preset adjusting brightness coefficient, dividing the absolute value of the ambient brightness difference by the second adjusting coefficient to obtain a second adjusting step length, if the current ambient brightness value is larger than the reference ambient brightness value, increasing the screen brightness value according to the second adjusting step length on the basis of the reference ambient brightness value, and if the current ambient brightness value is smaller than the reference ambient brightness value, decreasing the screen brightness value according to the second adjusting step length on the basis of the reference ambient brightness value;
if the adjustment brightness coefficient is smaller than a second preset adjustment brightness coefficient, dividing the absolute value of the ambient brightness difference by a third adjustment coefficient to obtain a third adjustment step length, if the current ambient brightness value is larger than the reference ambient brightness value, increasing the screen brightness value according to the third adjustment step length on the basis of the reference ambient brightness value, and if the current ambient brightness value is smaller than the reference ambient brightness value, decreasing the screen brightness value according to the third adjustment step length on the basis of the reference ambient brightness value;
the first preset adjusting brightness coefficient is larger than a second preset adjusting brightness coefficient, and the second preset adjusting brightness coefficient is larger than a third preset adjusting brightness coefficient; the first adjustment coefficient is greater than the second adjustment coefficient, and the second adjustment coefficient is greater than the third adjustment coefficient;
preferably, the adjustment speed is determined through the difference value, so that the current environment change can be quickly met, the problem that the brightness is too large in single adjustment can be avoided, the adjustment step length is adjusted to a value meeting the requirement through multiple times of adjustment instead of adjusting to a brightness value meeting the current environment at one time, and discomfort caused by one-time obvious change of the screen is reduced.
If the absolute value of the environment brightness difference is smaller than the preset environment brightness value and larger than zero, dividing the absolute value of the environment brightness difference by 2 to obtain a fourth adjusting step length, if the current environment brightness value is larger than the reference environment brightness value, increasing the screen brightness value according to the fourth adjusting step length on the basis of the reference environment brightness value, and if the current environment brightness value is smaller than the reference environment brightness value, decreasing the screen brightness value according to the fourth adjusting step length on the basis of the reference environment brightness value.
The invention provides an education tablet computer system with eye protection display, which is used for determining different initial display brightness according to different using environments of a tablet computer and adjusting the tablet computer to carry out eye protection display by matching with the environment brightness value. One of the main improvement points of the invention is that the first detection module and the first coefficient module are arranged, and through the cooperation of the first detection module and the first coefficient module, the brightness display of the display pixels in different areas of the display screen of the flat panel can be determined according to different use environments of the flat panel, so as to determine the initial brightness display of the screen, and the defect that in the prior art, the initial brightness display is unchanged in one layer and is set according to a set value of a user, and no obvious subdivision degree exists; as another improvement of the invention, the adjusted brightness value difference is determined through the cooperation of the first detection module and the second detection module, and the step length of the adjusted brightness is determined, so that the visual discomfort caused by too fast brightness adjustment when the ambient brightness changes is avoided; as a further improvement of the invention, the determined initial display brightness value is set differently depending on dark and non-dark environments, especially in non-dark environments, considering the discomfort of the screen to eyes caused by the reflection of light due to the brightness, the eye protection display of the screen is adjusted through the reflection degree, in a dark environment, the display brightness of the screen is readjusted in consideration of the initial brightness value and the change of the ambient brightness caused by the display of the screen, before the display is carried out by the initial set brightness value, the calculation is carried out to judge whether the environment brightness is obviously changed or not after the display is carried out by the initial set brightness value, if so, the initial setting brightness value is compensated, the initial setting brightness is multiplied by the compensation coefficient, the compensated initial setting brightness value is replaced by the previous initial setting brightness value, the compensation coefficient is a constant larger than 1, and omnibearing fine eye protection screen display can be carried out.
Claims (8)
1. An educational tablet computer system with eye-shielding display, comprising: a first detection module, a second detection module, a first coefficient module, a second coefficient module, a control module and an eye protection adjusting module, the first detection module is arranged on the front side of the display screen of the education tablet computer, the upper side surface of the second detection module, the first detection module is used for detecting the state of the display screen of the education tablet computer and determining the initial set brightness value of the education tablet according to the state, the second detection module is used for detecting the brightness value of the use environment of the education tablet computer, the first coefficient module is used for determining an initial brightness setting coefficient according to the state of the display screen detected by the first detection module, the second coefficient module is used for determining a brightness adjusting coefficient according to an environment brightness value, the control module is used for determining an eye protection display coefficient according to the initial brightness setting coefficient and the brightness adjusting coefficient, the eye protection display coefficient controls the eye protection adjusting module to carry out eye protection display adjustment; the first detection modules comprise at least 3 modules, are arranged on the side edge of the display screen and are used for determining the difference of brightness display according to different brightness of different display areas of the display screen and determining the initial set brightness value of the education flat plate.
2. The system of claim 1, wherein the first detection module comprises a first brightness detection unit, a second brightness detection unit and a third brightness detection unit, the top view of the display screen of the education tablet computer is taken as a front view, the left side of the display screen is divided into an area A, the area A is used for placing the first brightness detection unit, the lower area is an area B, the area B is used for placing the second brightness detection unit, the right area is an area C, the area C is used for placing the third brightness detection unit, the upper area is an area D, and the second detection module is arranged in the housing outside the area D.
3. The system of claim 2, wherein the first detection unit, the second detection unit and the third detection unit are configured to detect a reflectivity of the screen, and determine an initial set brightness value of the education tablet in a current use environment according to the reflectivity.
4. An eye-display educational tablet computer system according to claim 3, wherein the determining of the initial set brightness value for the educational tablet specifically comprises:
the second detection module detects first environment brightness, the first environment brightness is sent to the control module, the control module determines whether the environment is in a dark environment or a non-dark environment at the moment, and the initial setting brightness value is set in different modes according to the dark environment or the non-dark environment.
5. The educational tablet computer system of claim 4, wherein,
if the screen is in a dark environment, directly calling a first preset brightness value to light the display screen, detecting the display brightness values of different areas of the current screen through the first detection module after the screen is lighted, performing regional detection according to the first brightness detection unit, the second brightness detection unit and the third brightness detection unit, and respectively outputting the first brightness value, the second brightness value and the third brightness value to the first coefficient module;
the first coefficient module performs pairwise difference according to the first brightness value, the second brightness value and the third brightness value to obtain an absolute value of a brightness difference value, judges whether the absolute value of the brightness difference value is larger than a first set brightness difference value or not, if not, sums the first brightness value, the second brightness value and the third brightness value to obtain a brightness average value, uses the brightness average value as an initial brightness value to obtain a first adjusting coefficient, adjusts the display brightness of different pixels of a screen through the first adjusting coefficient to enable the absolute value of the brightness difference value to be smaller than the first set brightness difference value, uses the display brightness in the process as the initial set brightness value of the current dark environment, and adjusts the display screen from the first preset brightness value to the initial set brightness value of the current dark environment for display;
if so, searching the minimum value of the brightness values in the first brightness value, the second brightness value and the third brightness value, taking the minimum value of the brightness values as an initial set brightness value, and obtaining a first adjusting coefficient;
the first preset brightness value is a low brightness display value and is an initial setting default test value.
6. An educational tablet computer system for eye-protection display according to claim 5, wherein before displaying at the initial set brightness value, it is further calculated whether the ambient brightness will significantly change if displayed at the initial set brightness value, and if so, the initial set brightness value is compensated, the initial set brightness value is multiplied by a compensation coefficient, and the compensated initial set brightness value is substituted for the previous initial set brightness value, the compensation coefficient being a constant greater than 1.
7. The educational tablet computer system of claim 4, wherein,
if the display screen is in a non-dark environment, the brightness value of the environment reflected by different areas of the current screen is detected by the first detection module under the non-lighting state of the display screen, the area detection is carried out according to the first brightness detection unit, the second brightness detection unit and the third brightness detection unit, and the first reflection brightness value, the second reflection brightness value and the third reflection brightness value are respectively output to the first coefficient module;
the first coefficient module calculates according to the first reflection brightness value, the second reflection brightness value and the third reflection brightness value to obtain a first adjusting coefficient, and transmits the first adjusting coefficient to the control module;
the calculation specifically includes: performing pairwise difference on the first reflection brightness value, the second reflection brightness value and the third reflection brightness value to obtain a reflection brightness difference value, judging whether the reflection brightness difference value is larger than a preset reflection brightness difference value, if not, summing the first reflection brightness value, the second reflection brightness value and the third positive reflection brightness value to obtain an average value, setting a first reference value by taking the average value as an initial setting brightness value, and searching a corresponding initial setting brightness value by using the first reference value;
if yes, searching the maximum value of the reflection brightness values in the first reflection brightness value, the second reflection brightness value and the third reflection brightness value, setting a second reference value by taking the maximum value of the reflection brightness values as an initial set brightness value, and searching the corresponding initial brightness value by the second reference value.
8. An eye-protection display educational tablet system according to claim 5 or 7, wherein the determining the eye-protection display factor specifically comprises: determining a reference environment brightness value through the initial brightness setting coefficient, obtaining an environment brightness difference value by subtracting the current environment brightness value from the reference environment brightness value through the current environment brightness value of the brightness adjusting coefficient, judging whether the absolute value of the environment brightness difference value is greater than a preset environment brightness value, and if so, dividing the absolute value of the environment brightness difference value by the reference environment brightness value to obtain an adjusted brightness coefficient;
if the adjusting brightness coefficient is larger than a first preset adjusting brightness coefficient, dividing the absolute value of the environment brightness difference by the first adjusting coefficient to obtain a first adjusting step length, if the current environment brightness value is larger than the reference environment brightness value, increasing the screen brightness value according to the first adjusting step length on the basis of the reference environment brightness value, and if the current environment brightness value is smaller than the reference environment brightness value, decreasing the screen brightness value according to the first adjusting step length on the basis of the reference environment brightness value;
if the adjusting brightness coefficient is larger than a second preset adjusting brightness coefficient and smaller than a first preset adjusting brightness coefficient, dividing the absolute value of the ambient brightness difference by the second adjusting coefficient to obtain a second adjusting step length, if the current ambient brightness value is larger than the reference ambient brightness value, increasing the screen brightness value according to the second adjusting step length on the basis of the reference ambient brightness value, and if the current ambient brightness value is smaller than the reference ambient brightness value, decreasing the screen brightness value according to the second adjusting step length on the basis of the reference ambient brightness value;
if the adjustment brightness coefficient is smaller than a second preset adjustment brightness coefficient, dividing the absolute value of the ambient brightness difference by a third adjustment coefficient to obtain a third adjustment step length, if the current ambient brightness value is larger than the reference ambient brightness value, increasing the screen brightness value according to the third adjustment step length on the basis of the reference ambient brightness value, and if the current ambient brightness value is smaller than the reference ambient brightness value, decreasing the screen brightness value according to the third adjustment step length on the basis of the reference ambient brightness value;
the first preset adjusting brightness coefficient is larger than a second preset adjusting brightness coefficient, and the second preset adjusting brightness coefficient is larger than a third preset adjusting brightness coefficient; the first adjustment coefficient is greater than the second adjustment coefficient, and the second adjustment coefficient is greater than the third adjustment coefficient;
if the absolute value of the environment brightness difference is smaller than the preset environment brightness value and larger than zero, dividing the absolute value of the environment brightness difference by 2 to obtain a fourth adjusting step length, if the current environment brightness value is larger than the reference environment brightness value, increasing the screen brightness value according to the fourth adjusting step length on the basis of the reference environment brightness value, and if the current environment brightness value is smaller than the reference environment brightness value, decreasing the screen brightness value according to the fourth adjusting step length on the basis of the reference environment brightness value.
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