CN206134215U - According to environment screen intensity regulator circuit and display screen - Google Patents
According to environment screen intensity regulator circuit and display screen Download PDFInfo
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- CN206134215U CN206134215U CN201620474854.8U CN201620474854U CN206134215U CN 206134215 U CN206134215 U CN 206134215U CN 201620474854 U CN201620474854 U CN 201620474854U CN 206134215 U CN206134215 U CN 206134215U
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- operational amplifier
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Abstract
The utility model belongs to the technical field of the display screen, especially, relate to an according to environment screen intensity regulator circuit and display screen. The embodiment of the utility model provides an in, it is strong and weak that digital photosensitive module detects nature light to convert the light luminance value to, control module is according to the light luminance value output screen intensity control signal that is shaded from the sun, the luminance thereby adjustment display screen is shaded from the sun, and display brightness changes the automatic adjustment along with the ambient light, and it is amazing to avoid people's eye to receive the highlight down in light utmost point crape ring border like this, increases luminance in a poor light and let people's eye more clearly differentiate the information of display screen demonstration under the extremely strong environment of lighting level.
Description
Technical field
The utility model belongs to display screen technology field, more particularly to a kind of according to environment screen intensity adjustment circuit and aobvious
Display screen.
Background technology
Display is also generally referred to as monitor.Display is belonging to the I/O equipment of computer, i.e. input-output equipment, it
It is a kind of show tools for certain e-file being shown on screen by specific transmission equipment and being re-reflected into human eye.
Display is widely used in every field, and long-time closely uses display, what display backlight was projected
Light is too strong, easily causes eye strain.Particularly game enthusiasts, after dark cafe environment or night are turned off the light, if do not adjusted
Display backlight brightness, high light easily stimulates eye fine, and the length of time one causes ophthalmic uncomfortable or Shiliming-drug for enhancing vision to show decline problem.
Utility model content
The purpose of the utility model embodiment is to provide a kind of according to environment screen intensity adjustment circuit, it is intended to solved existing
Display cannot according to external environment light brightness, adjust adapt to human eye display brightness, cause human eye injure problem.
The utility model embodiment is achieved in that a kind of according to environment screen intensity adjustment circuit, the foundation ring
Border screen intensity adjustment circuit includes：
Detection available light is strong and weak, and is converted into the digital illuminant module of light luminance value；And
It is connected with the digital illuminant module, the control of signal is adjusted according to the light luminance value output screen backlight illumination
Molding block.
It is described also to include according to environment screen intensity adjustment circuit in said structure：
It is connected with the control module, adjusts the screen backlight brightness adjusting section of screen backlight brightness.
In said structure, the digital illuminant module includes：
Photodiode D1, photodiode D2, electric capacity C1, electric capacity C2, operational amplifier U1, operational amplifier U2, mould
Number converter U3, analog-digital converter U4 and counter U5；
The photodiode D1 is connected between the inverting input of the operational amplifier U1 and ground, and the computing is put
The in-phase input end ground connection of big device U1, the input of the output termination analog-digital converter U3 of the operational amplifier U1, institute
State electric capacity C1 to be connected between the inverting input of the operational amplifier U1 and output end, the photodiode D2 is connected to
Between the inverting input and ground of the operational amplifier U2, the in-phase input end ground connection of the operational amplifier U2, the fortune
The input of the output termination analog-digital converter U4 of amplifier U2 is calculated, the electric capacity C2 is connected to the operational amplifier U2
Inverting input and output end between, the output end one of the output end of the analog-digital converter U3 and the analog-digital converter U4
The input for meeting the counter U5 is acted, the output of the counter U5 terminates the control module.
In said structure, the control module adopts SCALAR process chips U6.
The another object of the utility model embodiment is to provide a kind of display screen, including according to the adjustment of environment screen intensity
Circuit, it is described to include according to environment screen intensity adjustment circuit：
Detection available light is strong and weak, and is converted into the digital illuminant module of light luminance value；And
It is connected with the digital illuminant module, the control of signal is adjusted according to the light luminance value output screen backlight illumination
Molding block.
It is described also to include according to environment screen intensity adjustment circuit in said structure：
It is connected with the control module, adjusts the screen backlight brightness adjusting section of screen backlight brightness.
In said structure, the digital illuminant module includes：
Photodiode D1, photodiode D2, electric capacity C1, electric capacity C2, operational amplifier U1, operational amplifier U2, mould
Number converter U3, analog-digital converter U4 and counter U5；
The photodiode D1 is connected between the inverting input of the operational amplifier U1 and ground, and the computing is put
The in-phase input end ground connection of big device U1, the input of the output termination analog-digital converter U3 of the operational amplifier U1, institute
State electric capacity C1 to be connected between the inverting input of the operational amplifier U1 and output end, the photodiode D2 is connected to
Between the inverting input and ground of the operational amplifier U2, the in-phase input end ground connection of the operational amplifier U2, the fortune
The input of the output termination analog-digital converter U4 of amplifier U2 is calculated, the electric capacity C2 is connected to the operational amplifier U2
Inverting input and output end between, the output end one of the output end of the analog-digital converter U3 and the analog-digital converter U4
The input for meeting the counter U5 is acted, the output of the counter U5 terminates the control module.
In said structure, the control module adopts SCALAR process chips U6.
In the utility model embodiment, digital illuminant module detection available light is strong and weak, and is converted into light luminance value,
Control module adjusts signal according to light luminance value output screen backlight illumination, so as to adjust indicator screen backlight illumination, shows
Show that device brightness changes adjust automatically with ambient light, so under the very dark environment of light human eye can be avoided to be stimulated by high light,
Increase backlight illumination under the extremely strong environment of lighting level by human eye more clearly resolution display transient copy.
Description of the drawings
Fig. 1 is the function structure chart of the foundation environment screen intensity adjustment circuit that the utility model embodiment is provided；
Fig. 2 is the circuit structure diagram of the foundation environment screen intensity adjustment circuit that the utility model embodiment is provided.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to the utility model.It should be appreciated that specific embodiment described herein is only to explain
The utility model, is not used to limit the utility model.
Fig. 1 shows the modular structure of the foundation environment screen intensity adjustment circuit that the utility model embodiment is provided, and is
It is easy to explanation, illustrate only the part related to the utility model embodiment.
A kind of foundation environment screen intensity adjustment circuit, it is described to include according to environment screen intensity adjustment circuit：
Detection available light is strong and weak, and is converted into the digital illuminant module 1 of light luminance value；And
It is connected 1 with the digital illuminant module, signal is adjusted according to the light luminance value output screen backlight illumination
Control module 2.
It is described also to include according to environment screen intensity adjustment circuit as the embodiment of the utility model one：
It is connected with the control module 2, adjusts the screen backlight brightness adjusting section 3 of screen backlight brightness.
Used as the embodiment of the utility model one, the digital illuminant module 1 includes：
Photodiode D1, photodiode D2, electric capacity C1, electric capacity C2, operational amplifier U1, operational amplifier U2, mould
Number converter U3, analog-digital converter U4 and counter U5；
The photodiode D1 is connected between the inverting input of the operational amplifier U1 and ground, and the computing is put
The in-phase input end ground connection of big device U1, the input of the output termination analog-digital converter U3 of the operational amplifier U1, institute
State electric capacity C1 to be connected between the inverting input of the operational amplifier U1 and output end, the photodiode D2 is connected to
Between the inverting input and ground of the operational amplifier U2, the in-phase input end ground connection of the operational amplifier U2, the fortune
The input of the output termination analog-digital converter U4 of amplifier U2 is calculated, the electric capacity C2 is connected to the operational amplifier U2
Inverting input and output end between, the output end one of the output end of the analog-digital converter U3 and the analog-digital converter U4
The input for meeting the counter U5 is acted, the output of the counter U5 terminates the control module 2.
Used as the embodiment of the utility model one, the control module 2 adopts SCALAR process chips U6.
The screen backlight brightness adjusting signal of the output of control module 2 is backlight PWM dimming duty cycle signal.
SCALAR process chips U6 pre-build the mapping table of light luminance value and backlight PWM dimming duty cycle signal, when
Digital illuminant module 1 detects ambient light change, and the value for passing to SCALAR process chips U6 also changes therewith, at SCALAR
The value that reason chip U6 sampling transmission comes, in mapping table query context (light very dark or high light when, abandon the number that transmission comes
Value), when inquire meet setting range numerical value when, backlight PWM dimming duty cycle signal is just changed immediately, it is aobvious so as to reach adjustment
Show device screen backlight brightness purpose.
The utility model embodiment also provides a kind of display screen, including according to environment screen intensity adjustment circuit, it is described according to
Include according to environment screen intensity adjustment circuit：
Detection available light is strong and weak, and is converted into the digital illuminant module 1 of light luminance value；And
It is connected 1 with the digital illuminant module, signal is adjusted according to the light luminance value output screen backlight illumination
Control module 2.
It is described also to include according to environment screen intensity adjustment circuit as the embodiment of the utility model one：
It is connected with the control module 2, adjusts the screen backlight brightness adjusting section 3 of screen backlight brightness.
Used as the embodiment of the utility model one, the digital illuminant module 1 includes：
Photodiode D1, photodiode D2, electric capacity C1, electric capacity C2, operational amplifier U1, operational amplifier U2, mould
Number converter U3, analog-digital converter U4 and counter U5；
The photodiode D1 is connected between the inverting input of the operational amplifier U1 and ground, and the computing is put
The in-phase input end ground connection of big device U1, the input of the output termination analog-digital converter U3 of the operational amplifier U1, institute
State electric capacity C1 to be connected between the inverting input of the operational amplifier U1 and output end, the photodiode D2 is connected to
Between the inverting input and ground of the operational amplifier U2, the in-phase input end ground connection of the operational amplifier U2, the fortune
The input of the output termination analog-digital converter U4 of amplifier U2 is calculated, the electric capacity C2 is connected to the operational amplifier U2
Inverting input and output end between, the output end one of the output end of the analog-digital converter U3 and the analog-digital converter U4
The input for meeting the counter U5 is acted, the output of the counter U5 terminates the control module.
Used as the embodiment of the utility model one, the control module 2 adopts SCALAR process chips U6.
The screen backlight brightness adjusting signal of the output of control module 2 is backlight PWM dimming duty cycle signal.
In the utility model embodiment, digital illuminant module detection available light is strong and weak, and is converted into light luminance value,
Control module adjusts signal according to light luminance value output screen backlight illumination, so as to adjust indicator screen backlight illumination, shows
Show that device brightness changes adjust automatically with ambient light, so under the very dark environment of light human eye can be avoided to be stimulated by high light,
Increase backlight illumination under the extremely strong environment of lighting level by human eye more clearly resolution display transient copy.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (8)
1. it is a kind of according to environment screen intensity adjustment circuit, it is characterised in that described according to environment screen intensity adjustment circuit bag
Include：
Detection available light is strong and weak, and is converted into the digital illuminant module of light luminance value；And
It is connected with the digital illuminant module, the control mould of signal is adjusted according to the light luminance value output screen backlight illumination
Block；
The screen backlight brightness adjusting signal of control module output is backlight PWM dimming duty cycle signal, pre-builds that light is bright
Angle value and the mapping table of backlight PWM dimming duty cycle signal, detect ambient light and change, the query context in mapping table, when
Inquire when meeting setting range numerical value, backlight PWM dimming duty cycle signal is just changed immediately, display brightness is with ambient light
Line changes adjust automatically, it is to avoid human eye is subject to high light to stimulate or allow human eye more clearly resolution display transient copy.
2. it is as claimed in claim 1 according to environment screen intensity adjustment circuit, it is characterised in that described bright according to environment screen
Degree adjustment circuit also includes：
It is connected with the control module, adjusts the screen backlight brightness adjusting section of screen backlight brightness.
3. it is as claimed in claim 2 according to environment screen intensity adjustment circuit, it is characterised in that the digital illuminant module bag
Include：
Photodiode D1, photodiode D2, electric capacity C1, electric capacity C2, operational amplifier U1, operational amplifier U2, modulus turn
Parallel operation U3, analog-digital converter U4 and counter U5；
The photodiode D1 is connected between the inverting input of the operational amplifier U1 and ground, the operational amplifier
The in-phase input end ground connection of U1, the input of the output termination analog-digital converter U3 of the operational amplifier U1, the electricity
Hold C1 to be connected between the inverting input of the operational amplifier U1 and output end, the photodiode D2 is connected to described
Between the inverting input and ground of operational amplifier U2, the in-phase input end ground connection of the operational amplifier U2, the computing is put
The input of the output termination analog-digital converter U4 of big device U2, the electric capacity C2 is connected to the anti-of the operational amplifier U2
Between phase input and output end, the output end of the analog-digital converter U3 connects together with the output end of the analog-digital converter U4
The input of the counter U5, the output of the counter U5 terminates the control module.
4. it is as claimed in claim 3 according to environment screen intensity adjustment circuit, it is characterised in that the control module is adopted
SCALAR process chips U6.
5. a kind of display screen, it is characterised in that include according to environment screen intensity adjustment circuit, it is described according to environment screen intensity
Adjustment circuit includes：
Detection available light is strong and weak, and is converted into the digital illuminant module of light luminance value；And
It is connected with the digital illuminant module, the control mould of signal is adjusted according to the light luminance value output screen backlight illumination
Block；
The screen backlight brightness adjusting signal of control module output is backlight PWM dimming duty cycle signal, pre-builds that light is bright
Angle value and the mapping table of backlight PWM dimming duty cycle signal, detect ambient light and change, the query context in mapping table, when
Inquire when meeting setting range numerical value, backlight PWM dimming duty cycle signal is just changed immediately, display brightness is with ambient light
Line changes adjust automatically, it is to avoid human eye is subject to high light to stimulate or allow human eye more clearly resolution display transient copy.
6. display screen as claimed in claim 5, it is characterised in that described also to include according to environment screen intensity adjustment circuit：
It is connected with the control module, adjusts the screen backlight brightness adjusting section of screen backlight brightness.
7. display screen as claimed in claim 6, it is characterised in that the digital illuminant module includes：
Photodiode D1, photodiode D2, electric capacity C1, electric capacity C2, operational amplifier U1, operational amplifier U2, modulus turn
Parallel operation U3, analog-digital converter U4 and counter U5；
The photodiode D1 is connected between the inverting input of the operational amplifier U1 and ground, the operational amplifier
The in-phase input end ground connection of U1, the input of the output termination analog-digital converter U3 of the operational amplifier U1, the electricity
Hold C1 to be connected between the inverting input of the operational amplifier U1 and output end, the photodiode D2 is connected to described
Between the inverting input and ground of operational amplifier U2, the in-phase input end ground connection of the operational amplifier U2, the computing is put
The input of the output termination analog-digital converter U4 of big device U2, the electric capacity C2 is connected to the anti-of the operational amplifier U2
Between phase input and output end, the output end of the analog-digital converter U3 connects together with the output end of the analog-digital converter U4
The input of the counter U5, the output of the counter U5 terminates the control module.
8. display screen as claimed in claim 7, it is characterised in that the control module adopts SCALAR process chips U6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620474854.8U CN206134215U (en) | 2016-05-19 | 2016-05-19 | According to environment screen intensity regulator circuit and display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620474854.8U CN206134215U (en) | 2016-05-19 | 2016-05-19 | According to environment screen intensity regulator circuit and display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206134215U true CN206134215U (en) | 2017-04-26 |
Family
ID=58560569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620474854.8U Active CN206134215U (en) | 2016-05-19 | 2016-05-19 | According to environment screen intensity regulator circuit and display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206134215U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113126067A (en) * | 2019-12-26 | 2021-07-16 | 华为技术有限公司 | Laser safety circuit and laser safety equipment |
-
2016
- 2016-05-19 CN CN201620474854.8U patent/CN206134215U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113126067A (en) * | 2019-12-26 | 2021-07-16 | 华为技术有限公司 | Laser safety circuit and laser safety equipment |
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