CN208985652U - Screen luminance of mobile phone adjusts circuit - Google Patents
Screen luminance of mobile phone adjusts circuit Download PDFInfo
- Publication number
- CN208985652U CN208985652U CN201821400741.9U CN201821400741U CN208985652U CN 208985652 U CN208985652 U CN 208985652U CN 201821400741 U CN201821400741 U CN 201821400741U CN 208985652 U CN208985652 U CN 208985652U
- Authority
- CN
- China
- Prior art keywords
- capacitor
- circuit
- mobile phone
- pin
- chip
- 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.)
- Expired - Fee Related
Links
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 68
- 230000035807 sensation Effects 0.000 claims abstract description 19
- 239000003990 capacitor Substances 0.000 claims description 198
- 239000013078 crystal Substances 0.000 claims description 40
- 230000005611 electricity Effects 0.000 claims description 15
- 230000005669 field effect Effects 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims 2
- 230000009466 transformation Effects 0.000 claims 2
- 230000000638 stimulation Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 10
- 230000001276 controlling effect Effects 0.000 description 8
- 230000001413 cellular effect Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Telephone Function (AREA)
Abstract
The utility model discloses a kind of screen luminance of mobile phone adjusting circuit, and the adjusting circuit includes: power circuit, baseband processor, application processor, liquid crystal display drive circuit, LED backlight drive circuit；The baseband processor is separately connected application processor, LED backlight drive circuit, and application processor connects liquid crystal display drive circuit；The liquid crystal display drive circuit connects liquid crystal display, and the LED backlight drive circuit connects LED backlight；The power circuit is separately connected baseband processor, application processor, liquid crystal display drive circuit, LED backlight drive circuit；The application processor is connected with light sensation circuit.The utility model proposes screen luminance of mobile phone adjust circuit, can avoid stimulation to user's human eye when mobile phone starting.
Description
Technical field
The utility model belongs to electronic information technical field, is related to a kind of screen brightness regulating device, more particularly to a kind of
Screen luminance of mobile phone adjusts circuit.
Background technique
In traditional mobile phone start-up circuit, when mobile phone has the equipment of adjust automatically light sensation, but in night most first strike
When opening mobile phone, initial screen intensity is very dazzling；But when daytime opens mobile phone screen, for ambient light,
Feel that mobile phone original intensity is again often very dark.After original intensity the bright of mobile phone screen can be slowly being adjusted according to extraneous brightness
Degree, reaching makes the comfortable situation of personnel.But influence of this initial brightness to human eye is very big.
In view of this, nowadays there is an urgent need to design a kind of new screen luminance of mobile phone regulating device, to overcome existing hand
Drawbacks described above existing for machine screen brightness regulating device.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of screen luminance of mobile phone to adjust circuit, can avoid hand
Stimulation when machine starts to user's human eye.
In order to solve the above technical problems, the utility model adopts the following technical solution:
A kind of screen luminance of mobile phone adjusting circuit, the adjusting circuit includes: power circuit, baseband processor, using place
It manages device, liquid crystal display drive circuit, touch drive circuit, LED backlight drive circuit；
The baseband processor is separately connected application processor, LED backlight drive circuit, and application processor connects liquid crystal display
Driving circuit；The power circuit is separately connected baseband processor, application processor, liquid crystal display drive circuit, touch tablet driving
Circuit, LED backlight drive circuit；
The liquid crystal display drive circuit connects liquid crystal display, and the touch drive circuit connects touch tablet, the LED
Backlight drive circuit connects LED backlight；
The power circuit includes power supply control chip, charging interface, field-effect tube, inductance, the first filter capacitor, second
Filter capacitor, reset chip, charge controlling chip；
The power supply control chip is separately connected charging interface, field-effect tube, inductance, the second filter capacitor, Base-Band Processing
Device, reset chip, charge controlling chip, the first filter capacitor of inductance connection；
The application processor is equipped with clock circuit, and the clock circuit includes crystal oscillator, first capacitor C1, the second capacitor
C2；The application processor is equipped with crystal oscillator input pin XIN, crystal oscillator output pin XOUT；The crystal oscillator input pin XIN of application processor points
Not Lian Jie crystal oscillator first end, the second end of first capacitor C1, crystal oscillator output pin XOUT is separately connected the second end of crystal oscillator, second
The second end of capacitor C2；The first end of first capacitor C1, the first end of the second capacitor C2 are grounded respectively；
The application processor is connected with light sensation circuit；The light sensation circuit includes the first triode Q1, the second triode
Q2, third transistor Q3, the 4th triode Q4, the 2nd 1 resistance R21, the two or two resistance R22, the two or three resistance R23, the two or four
Resistance R24；
The second end of the 2nd 1 resistance R21 is separately connected the hair of the cathode of the first LED light LED1, the first triode Q1
The first end of emitter-base bandgap grading, the emitter of the second triode Q2, the anode of the second LED light LED2, the two or two resistance R22, the two or two electricity
Hinder the second end ground connection of R22；
The base stage of the first triode Q1 be separately connected the anode of the first LED light LED1, the second LED light LED2 it is negative
Pole, the second triode Q2 base stage；The base stage of the source electrode connection third transistor Q3 of first triode Q1, the second triode Q2's
Source electrode connects the base stage of the 4th triode Q4；The source electrode of the third transistor Q3 is grounded by the two or three resistance R23, and the four or three
The source electrode of pole pipe Q4 connects the second end of the two or four resistance R24, the emitter ground connection of the 4th triode Q4；
The liquid crystal display drive circuit includes mobile phone display screen circuit interface chip X1600, zero capacitance C0, first capacitor
C1, the second capacitor C2, third capacitor C3, the 4th capacitor C4, the 5th capacitor C5, the 6th capacitor C6, the 7th capacitor C7, zero inductance
L0, the first inductance L1, the second inductance L2, zero resistance R0, first resistor R1, the 0th transformer Z0, the first transformer Z1；
The third pin of the mobile phone display screen circuit interface chip X1600 connects the first end of the 0th transformer Z0, answers
The second end of the 0th transformer Z0, the DSI1_CLKN pin connection of application processor are connected with the DSI1_CLKP pin of processor
4th pin at the third end of the 0th transformer Z0, mobile phone display screen circuit interface chip X1600 connects the 0th transformer Z0's
4th end；The 6th pin of the mobile phone display screen circuit interface chip X1600 connects the first end of the first transformer Z1, application
The DSI1_DP0 pin of processor connects the second end of the first transformer Z1, the DSI1_DN0 pin connection first of application processor
The third end of transformer Z1, the 7th pin of mobile phone display screen circuit interface chip X1600 connect the 4th of the first transformer Z1 the
End；
The first three-prong of the mobile phone display screen circuit interface chip X1600 is separately connected the first of the 6th capacitor C6
It holds, the first end of first resistor R1, the second end ground connection of the 6th capacitor C6, the second end of first resistor R1 connects application processor
GPIO37 pin；The one or nine pin of the mobile phone display screen circuit interface chip X1600 is separately connected the 7th capacitor C7's
The first end of first end, zero resistance R0, the second end ground connection of the 7th capacitor C7, the second end connection of zero resistance R0 is at
Manage the GPIO33 pin of device；
The one or two pin of the mobile phone display screen circuit interface chip X1600 is separately connected mobile phone display screen circuit interface
The one or four pin of chip X1600, the first end of first capacitor C1, the first end of zero capacitance C0, zero inductance L0 second
End, the second end of first capacitor C1, the second end of zero capacitance C0 are grounded respectively, the first end connection 1.8V electricity of zero inductance L0
Source voltage；
The one or five pin of the mobile phone display screen circuit interface chip X1600 is separately connected mobile phone display screen circuit interface
The one or seven pin, the mobile phone display screen circuit of the one or six pin of chip X1600, mobile phone display screen circuit interface chip X1600
The one or eight pin of interface chip X1600, the first end of the 5th capacitor C5, the first end of the 4th capacitor C4, third capacitor C3
The second end of first end, the second inductance L2, the second end of the 5th capacitor C5, the second end of the 4th capacitor C4, third capacitor C3
Second end is grounded respectively, and the first end of the second inductance L2 connects the second end of the first inductance L1, and the second end of the first inductance L1 connects
Connect the first end of 3.7V supply voltage, the second capacitor C2, the second end ground connection of the second capacitor C2；
The LED backlight drive circuit includes LED drive chip, the one one inductance L11, the one one capacitor C11, the one or two
Capacitor C12, the one or three capacitor C13, the one one resistance R11, the one or two resistance R12, one LED light V1 of V, two LED light V2 of V,
Three LED light V3 of V；
The first port of the baseband processor is separately connected the second end of the one one resistance R11, LED drive chip
The first end of the port SCL, the one one resistance R11 connects 1.8V supply voltage VCC；
The second port of the baseband processor is separately connected the second end of the one or two resistance R12, LED drive chip
The first end of the port SDA, the one or two resistance R12 connects 1.8V supply voltage VCC；
The vdd terminal mouth of the LED drive chip is separately connected the port ADDR_SELO of LED drive chip, the one one capacitor
The first end of C11, the second end of 3.7V supply voltage VCC, the one or two capacitor C12 ground connection；
The anode of the port the B connection three LED light V3 of V of the LED drive chip；
The port R of the LED drive chip connects the first end of the one one inductance L11, the second end of the one one inductance L11
Be separately connected the first end of the one or three capacitor C13, the anode of one LED light V1 of V, two LED light V2 of V anode, the one or three electricity
Hold the second end ground connection of C13, the cathode of one LED light V1 of V, the cathode of two LED light V2 of V are grounded respectively；The LED drives core
The port VOUT of piece connects the first end of the one or two capacitor C12, the second end ground connection of the one or two capacitor C12.
A kind of screen luminance of mobile phone adjusting circuit, the adjusting circuit includes: power circuit, baseband processor, using place
Manage device, liquid crystal display drive circuit, LED backlight drive circuit；
The baseband processor is separately connected application processor, LED backlight drive circuit, and application processor connects liquid crystal display
Driving circuit；The liquid crystal display drive circuit connects liquid crystal display, and the LED backlight drive circuit connects LED backlight；
The power circuit is separately connected baseband processor, application processor, liquid crystal display drive circuit, LED backlight driving
Circuit；The application processor is connected with light sensation circuit.
As a kind of preferred embodiment of the utility model, it further includes touch tablet driving that the screen luminance of mobile phone, which adjusts circuit,
Circuit, baseband processor connection touch drive circuit, and the touch drive circuit connects touch tablet.
As a kind of preferred embodiment of the utility model, the power circuit includes power supply control chip, charging interface, field
Effect pipe, inductance, the first filter capacitor, the second filter capacitor, reset chip, charge controlling chip；
The power supply control chip is separately connected charging interface, field-effect tube, inductance, the second filter capacitor, Base-Band Processing
Device, reset chip, charge controlling chip, the first filter capacitor of inductance connection.
As a kind of preferred embodiment of the utility model, the application processor is equipped with clock circuit, the clock circuit
Including crystal oscillator, first capacitor C1, the second capacitor C2；The application processor is equipped with crystal oscillator input pin XIN, crystal oscillator output pin
XOUT；The crystal oscillator input pin XIN of application processor is separately connected the second end of the first end of crystal oscillator, first capacitor C1, and crystal oscillator is defeated
Foot XOUT is separately connected the second end of the second end of crystal oscillator, the second capacitor C2 out；The first end of first capacitor C1, the second capacitor C2
First end be grounded respectively；
As a kind of preferred embodiment of the utility model, the light sensation circuit includes the first triode Q1, the second triode
Q2, third transistor Q3, the 4th triode Q4, the 2nd 1 resistance R21, the two or two resistance R22, the two or three resistance R23, the two or four
Resistance R24；
The second end of the 2nd 1 resistance R21 is separately connected the hair of the cathode of the first LED light LED1, the first triode Q1
The first end of emitter-base bandgap grading, the emitter of the second triode Q2, the anode of the second LED light LED2, the two or two resistance R22, the two or two electricity
Hinder the second end ground connection of R22；
The base stage of the first triode Q1 be separately connected the anode of the first LED light LED1, the second LED light LED2 it is negative
Pole, the second triode Q2 base stage；The base stage of the source electrode connection third transistor Q3 of first triode Q1, the second triode Q2's
Source electrode connects the base stage of the 4th triode Q4；The source electrode of the third transistor Q3 is grounded by the two or three resistance R23, and the four or three
The source electrode of pole pipe Q4 connects the second end of the two or four resistance R24, the emitter ground connection of the 4th triode Q4.
As a kind of preferred embodiment of the utility model, the liquid crystal display drive circuit includes mobile phone display screen circuit interface
Chip X1600, zero capacitance C0, first capacitor C1, the second capacitor C2, third capacitor C3, the 4th capacitor C4, the 5th capacitor C5,
6th capacitor C6, the 7th capacitor C7, zero inductance L0, the first inductance L1, the second inductance L2, zero resistance R0, first resistor R1,
0th transformer Z0, the first transformer Z1；
The third pin of the mobile phone display screen circuit interface chip X1600 connects the first end of the 0th transformer Z0, answers
The second end of the 0th transformer Z0, the DSI1_CLKN pin connection of application processor are connected with the DSI1_CLKP pin of processor
4th pin at the third end of the 0th transformer Z0, mobile phone display screen circuit interface chip X1600 connects the 0th transformer Z0's
4th end；The 6th pin of the mobile phone display screen circuit interface chip X1600 connects the first end of the first transformer Z1, application
The DSI1_DP0 pin of processor connects the second end of the first transformer Z1, the DSI1_DN0 pin connection first of application processor
The third end of transformer Z1, the 7th pin of mobile phone display screen circuit interface chip X1600 connect the 4th of the first transformer Z1 the
End；
The first three-prong of the mobile phone display screen circuit interface chip X1600 is separately connected the first of the 6th capacitor C6
It holds, the first end of first resistor R1, the second end ground connection of the 6th capacitor C6, the second end of first resistor R1 connects application processor
GPIO37 pin；The one or nine pin of the mobile phone display screen circuit interface chip X1600 is separately connected the 7th capacitor C7's
The first end of first end, zero resistance R0, the second end ground connection of the 7th capacitor C7, the second end connection of zero resistance R0 is at
Manage the GPIO33 pin of device；
The one or two pin of the mobile phone display screen circuit interface chip X1600 is separately connected mobile phone display screen circuit interface
The one or four pin of chip X1600, the first end of first capacitor C1, the first end of zero capacitance C0, zero inductance L0 second
End, the second end of first capacitor C1, the second end of zero capacitance C0 are grounded respectively, the first end connection 1.8V electricity of zero inductance L0
Source voltage；
The one or five pin of the mobile phone display screen circuit interface chip X1600 is separately connected mobile phone display screen circuit interface
The one or seven pin, the mobile phone display screen circuit of the one or six pin of chip X1600, mobile phone display screen circuit interface chip X1600
The one or eight pin of interface chip X1600, the first end of the 5th capacitor C5, the first end of the 4th capacitor C4, third capacitor C3
The second end of first end, the second inductance L2, the second end of the 5th capacitor C5, the second end of the 4th capacitor C4, third capacitor C3
Second end is grounded respectively, and the first end of the second inductance L2 connects the second end of the first inductance L1, and the second end of the first inductance L1 connects
Connect the first end of 3.7V supply voltage, the second capacitor C2, the second end ground connection of the second capacitor C2.
As a kind of preferred embodiment of the utility model, the LED backlight drive circuit includes LED drive chip, first
One inductance L11, the one one capacitor C11, the one or two capacitor C12, the one or three capacitor C13, the one one resistance R11, the one or two resistance
R12, one LED light V1 of V, two LED light V2 of V, three LED light V3 of V；
The first port of the baseband processor is separately connected the second end of the one one resistance R11, LED drive chip
The first end of the port SCL, the one one resistance R11 connects 1.8V supply voltage VCC；
The second port of the baseband processor is separately connected the second end of the one or two resistance R12, LED drive chip
The first end of the port SDA, the one or two resistance R12 connects 1.8V supply voltage VCC；
The vdd terminal mouth of the LED drive chip is separately connected the port ADDR_SELO of LED drive chip, the one one capacitor
The first end of C11, the second end of 3.7V supply voltage VCC, the one or two capacitor C12 ground connection；
The anode of the port the B connection three LED light V3 of V of the LED drive chip；
The port R of the LED drive chip connects the first end of the one one inductance L11, the second end of the one one inductance L11
Be separately connected the first end of the one or three capacitor C13, the anode of one LED light V1 of V, two LED light V2 of V anode, the one or three electricity
Hold the second end ground connection of C13, the cathode of one LED light V1 of V, the cathode of two LED light V2 of V are grounded respectively；The LED drives core
The port VOUT of piece connects the first end of the one or two capacitor C12, the second end ground connection of the one or two capacitor C12.
The utility model has the beneficial effects that: the utility model proposes screen luminance of mobile phone adjust circuit, can avoid
Stimulation when mobile phone starts to user's human eye.
Detailed description of the invention
Fig. 1 is the composition schematic diagram that the utility model screen luminance of mobile phone adjusts circuit.
Fig. 2 is the connection schematic diagram that the utility model adjusts power circuit and other parts in circuit.
Fig. 3 is the composition schematic diagram that the utility model adjusts power circuit in circuit.
Fig. 4 is the circuit diagram that the utility model adjusts mobile phone key circuit in circuit.
Fig. 5 is the circuit diagram that the utility model adjusts clock circuit in circuit.
Fig. 6 is the circuit diagram that the utility model adjusts light sensation circuit in circuit.
Fig. 7 is the circuit diagram that the utility model adjusts LED backlight drive circuit in circuit.
Fig. 8 is the circuit diagram that the utility model adjusts liquid crystal display drive circuit in circuit.
Fig. 9 is that screen intensity adjusts overview flow chart when existing mobile phone starts.
Specific embodiment
The preferred embodiment that according to the present invention will be described in detail below with reference to the accompanying drawings.
Embodiment one
It please refers to Fig.1 to Fig.3, the utility model discloses a kind of screen luminance of mobile phone adjusting circuit, the adjusting circuit
Include: power circuit, baseband processor 1, application processor 2, liquid crystal display drive circuit 3, touch drive circuit 4, LED backlight
Driving circuit 5.
The baseband processor 1 is separately connected application processor 2, LED backlight drive circuit 5, and application processor 2 connects liquid
Crystalline substance screen driving circuit 3；The power circuit is separately connected baseband processor 1, application processor 2, liquid crystal display drive circuit 3, touching
Template driving circuit 4, LED backlight drive circuit 5.
The liquid crystal display drive circuit 3 connects liquid crystal display 6, and the touch drive circuit 4 connects touch tablet 7, institute
It states LED backlight drive circuit 5 and connects LED backlight 8.
Fig. 2, Fig. 3 are please referred to, the power circuit includes power supply control chip, charging interface, field-effect tube, inductance,
One filter capacitor, the second filter capacitor, reset chip, charge controlling chip.
The power supply control chip is separately connected charging interface, field-effect tube, inductance, the second filter capacitor, Base-Band Processing
Device, reset chip, charge controlling chip, the first filter capacitor of inductance connection.
Referring to Fig. 4, the adjusting circuit further includes key circuit, the genio79 pin of baseband processor connects key
Circuit.Key circuit is the prior art, is not described herein.
Referring to Fig. 5, the application processor be equipped with clock circuit, the clock circuit include crystal oscillator, first capacitor C1,
Second capacitor C2；The application processor is equipped with crystal oscillator input pin XIN, crystal oscillator output pin XOUT；The crystal oscillator of application processor is defeated
Enter the second end that foot XIN is separately connected the first end of crystal oscillator, first capacitor C1, crystal oscillator output pin XOUT is separately connected the of crystal oscillator
Two ends, the second capacitor C2 second end；The first end of first capacitor C1, the first end of the second capacitor C2 are grounded respectively.
The application processor is connected with light sensation circuit；Referring to Fig. 6, the light sensation circuit include the first triode Q1,
Second triode Q2, third transistor Q3, the 4th triode Q4, the 2nd 1 resistance R21, the two or two resistance R22, the two or three resistance
R23, the two or four resistance R24.
The second end of the 2nd 1 resistance R21 is separately connected the hair of the cathode of the first LED light LED1, the first triode Q1
The first end of emitter-base bandgap grading, the emitter of the second triode Q2, the anode of the second LED light LED2, the two or two resistance R22, the two or two electricity
Hinder the second end ground connection of R22.
The base stage of the first triode Q1 be separately connected the anode of the first LED light LED1, the second LED light LED2 it is negative
Pole, the second triode Q2 base stage；The base stage of the source electrode connection third transistor Q3 of first triode Q1, the second triode Q2's
Source electrode connects the base stage of the 4th triode Q4；The source electrode of the third transistor Q3 is grounded by the two or three resistance R23, and the four or three
The source electrode of pole pipe Q4 connects the second end of the two or four resistance R24, the emitter ground connection of the 4th triode Q4.
Referring to Fig. 7, the LED backlight drive circuit includes LED drive chip, the one one inductance L11, the one one capacitor
C11, the one or two capacitor C12, the one or three capacitor C13, the one one resistance R11, the one or two resistance R12, one LED light V1 of V, V
Two LED light V2, three LED light V3 of V.
The first port of the baseband processor is separately connected the second end of the one one resistance R11, LED drive chip
The first end of the port SCL, the one one resistance R11 connects 1.8V supply voltage VCC.
The second port of the baseband processor is separately connected the second end of the one or two resistance R12, LED drive chip
The first end of the port SDA, the one or two resistance R12 connects 1.8V supply voltage VCC.
The vdd terminal mouth of the LED drive chip is separately connected the port ADDR_SELO of LED drive chip, the one one capacitor
The first end of C11, the second end of 3.7V supply voltage VCC, the one or two capacitor C12 ground connection.
The anode of the port the B connection three LED light V3 of V of the LED drive chip.
The port R of the LED drive chip connects the first end of the one one inductance L11, the second end of the one one inductance L11
Be separately connected the first end of the one or three capacitor C13, the anode of one LED light V1 of V, two LED light V2 of V anode, the one or three electricity
Hold the second end ground connection of C13, the cathode of one LED light V1 of V, the cathode of two LED light V2 of V are grounded respectively；The LED drives core
The port VOUT of piece connects the first end of the one or two capacitor C12, the second end ground connection of the one or two capacitor C12.
Referring to Fig. 8, the liquid crystal display drive circuit includes mobile phone display screen circuit interface chip X1600, zero capacitance
C0, first capacitor C1, the second capacitor C2, third capacitor C3, the 4th capacitor C4, the 5th capacitor C5, the 6th capacitor C6, the 7th capacitor
C7, zero inductance L0, the first inductance L1, the second inductance L2, zero resistance R0, first resistor R1, the 0th transformer Z0, first become
Depressor Z1.
The third pin of the mobile phone display screen circuit interface chip X1600 connects the first end of the 0th transformer Z0, answers
The second end of the 0th transformer Z0, the DSI1_CLKN pin connection of application processor are connected with the DSI1_CLKP pin of processor
4th pin at the third end of the 0th transformer Z0, mobile phone display screen circuit interface chip X1600 connects the 0th transformer Z0's
4th end；The 6th pin of the mobile phone display screen circuit interface chip X1600 connects the first end of the first transformer Z1, application
The DSI1_DP0 pin of processor connects the second end of the first transformer Z1, the DSI1_DN0 pin connection first of application processor
The third end of transformer Z1, the 7th pin of mobile phone display screen circuit interface chip X1600 connect the 4th of the first transformer Z1 the
End.
The first three-prong of the mobile phone display screen circuit interface chip X1600 is separately connected the first of the 6th capacitor C6
It holds, the first end of first resistor R1, the second end ground connection of the 6th capacitor C6, the second end of first resistor R1 connects application processor
GPIO37 pin；The one or nine pin of the mobile phone display screen circuit interface chip X1600 is separately connected the 7th capacitor C7's
The first end of first end, zero resistance R0, the second end ground connection of the 7th capacitor C7, the second end connection of zero resistance R0 is at
Manage the GPIO33 pin of device.
The one or two pin of the mobile phone display screen circuit interface chip X1600 is separately connected mobile phone display screen circuit interface
The one or four pin of chip X1600, the first end of first capacitor C1, the first end of zero capacitance C0, zero inductance L0 second
End, the second end of first capacitor C1, the second end of zero capacitance C0 are grounded respectively, the first end connection 1.8V electricity of zero inductance L0
Source voltage.
The one or five pin of the mobile phone display screen circuit interface chip X1600 is separately connected mobile phone display screen circuit interface
The one or seven pin, the mobile phone display screen circuit of the one or six pin of chip X1600, mobile phone display screen circuit interface chip X1600
The one or eight pin of interface chip X1600, the first end of the 5th capacitor C5, the first end of the 4th capacitor C4, third capacitor C3
The second end of first end, the second inductance L2, the second end of the 5th capacitor C5, the second end of the 4th capacitor C4, third capacitor C3
Second end is grounded respectively, and the first end of the second inductance L2 connects the second end of the first inductance L1, and the second end of the first inductance L1 connects
Connect the first end of 3.7V supply voltage, the second capacitor C2, the second end ground connection of the second capacitor C2.
In the present embodiment, reset chip are as follows: U4202；Baseband processor are as follows: D2800；Backlight driving chip: D2402；Hand
The circuit interface of machine display screen are as follows: X1600；Application processor are as follows: D1400.
Embodiment two
A kind of screen luminance of mobile phone adjusting circuit, the adjusting circuit includes: power circuit, baseband processor, using place
Manage device, liquid crystal display drive circuit, LED backlight drive circuit；
The baseband processor is separately connected application processor, LED backlight drive circuit, and application processor connects liquid crystal display
Driving circuit；The liquid crystal display drive circuit connects liquid crystal display, and the LED backlight drive circuit connects LED backlight；
The power circuit is separately connected baseband processor, application processor, liquid crystal display drive circuit, LED backlight driving
Circuit；The application processor is connected with light sensation circuit.
Embodiment three
Under normal circumstances, the automatic brightness adjustment function of mobile phone screen, but the function is in mobile phone photosensitive sensors
When normal work, just it can be used.Traditional Android phone Booting sequence is to press cellular phone power supplies key, and mobile phone circuit is
Can connect, first can excitation power source managing chip, later crystal module start to work, generate clock pulses, then just will start
The operating voltage of each module of sensor, works normally mobile phone.But before photosensitive sensors starting, the initial brightness of mobile phone screen
Have a great impact to human eye, screen intensity when starting thus herein for mobile phone is designed, overall procedure such as Fig. 9 institute
Show.
In the utility model, screen luminance of mobile phone adjust circuit, the adjusting circuit include: power circuit, light sensation circuit,
Baseband processor, liquid crystal display drive circuit, touches drive circuit, LED backlight drive circuit at application processor.
The power circuit of mobile phone is located in mobile phone main circuit board, mainly by charging circuit, clock circuit, reset circuit, electricity
The composition such as source switch, power output circuit, Fig. 3 show the structure of power circuit.Current smart phone reset chip is mainly adopted
Use U4202.
Wherein, charging circuit is responsible for detecting the electricity of battery, charging, and the protection to battery；Clock circuit is responsible for production
The clock signal of raw booting；Reset signal needed for reset circuit provides booting for microprocessor；Power switch is responsible for being switched on
When trigger signal is provided；Power output circuit is responsible for supply voltage needed for exporting other element circuits of mobile phone.
To avoid stimulation of the mobile phone original intensity to human eye, the present embodiment can will be according to time point, in mobile phone starting
It is initial to screen luminance of mobile phone intelligence setting to turn according to current time when clock, it is adjusted automatically further according to external environment
The brightness of whole screen, to avoid stimulation of mobile phone when starting to user's human eye.
The key of smart phone is typically designed in the side of mobile phone, and for key circuit just on main circuit board, D2800 is base band
Processor.Several functions such as screen that cellular phone power supplies key has long-pressing to start, shuts down, short-press is gone out, when long-pressing cellular phone power supplies key starts mobile phone
When, baseband processor can be opened, as shown in Figure 4.
Different time points, the setting of mobile phone original intensity
Screen intensity when the corresponding starting of mobile phone obstructed time point is set first in reset chip.When cell phone clock circuit
After starting, the mobile phone current time is obtained, three initial values are arranged to mobile phone brightness in time point when being started according to mobile phone, if
The maximum brightness of mobile phone is LIGHT.It is extraneous darker when 20:00 at night is to when starting mobile phone between 6:00 AM,
10%*LIGHT is set as to the default luminance light of mobile phone screen；When 6 points are arrived evening with you at 9 points at noon and afternoon 5 in the morning
Upper between 8 points, for ambient than milder, the default luminance to mobile phone screen is that brightness light is set as 40%*LIGHT；When
When at 9 points at noon at 5 in afternoon, for ambient than stronger, the default luminance of mobile phone screen is set as brightness light setting
For 60%*LIGHT, to guarantee section in different times, when first switching on mobile phone, naked eyes are more comfortable.When in correspondence
Time point start mobile phone when, corresponding original intensity can be arranged in screen.
Fig. 5 is the clock circuit of application processor connection, wherein D1400 is application processor, and XIN is crystal oscillator input pin,
XOUT is crystal oscillator output pin, and two input, output pins connect crystal oscillators, there is the voltage difference of 0.4V or so between two pins, can be with
Stable clock source is provided to single-chip microcontroller.
The data point reuse screen intensity incuded by photosensitive sensors.
After mobile phone obtains operating voltage, light sensation circuit will work, and according to the light sensation of current environment, then adjust Mobile phone screen
The brightness of curtain, to make user more comfortably using mobile phone, the circuit that light sensation passes pipe device is as shown in Figure 6.
When LED1 is irradiated by light, it, which will lead to Q1 pin 3, becomes low level.R2 both end voltage declines sufficiently low, pin 1
Low level is become from high level with 3.After photosensitive sensor obtains the light sensation of current environment, it can be fed back by photosensitive sensor
Value adjust screen luminance of mobile phone, but since the liquid crystal molecule itself in liquid crystal display will not shine, need through backlight
It can see the image on liquid crystal display, therefore smart phone usually can all design backlight.
Mobile phone display screen circuit is as display working state of mobile phone and the important component that instruction is manually entered, mainly by base band
Processor, application processor, liquid crystal display driving circuit, liquid crystal display, driving circuit, touch tablet, LED backlight
Instruction and screen intensity adjustment is manually entered in the composition such as driver, LED backlight, realization.Mobile phone display screen circuit block diagram such as Fig. 1
It is shown.
Mobile phone display screen circuit directly controls the display state of mobile phone screen, the special driving of luminous needs of mobile phone screen
Circuit drives, for its power supply and drive control, as shown in Figure 7.D2800 integrates baseband processor, is internally integrated microprocessor
And the circuits such as digital information processor, when mobile phone starting, D2800 chip is first according to the mobile phone default zero of time setting
Angle value is transferred to backlight driving chip D2402, by C1 outputting drive voltage, screen backlight lamp V1, V2 is driven to shine.Work as mobile phone
After obtaining operating voltage, backlight lamp control signal pull-up resistor R11, R12 resistance value is influenced by photosensitive sensor, thus through
D2402 controls V1, V2 and shines.Wherein L11 and C13 is respectively boost inductance and boost capacitor, and backlight driving chip D2402 is by electricity
Pond provides 3.7V power supply and provides 1.8V power supply by power supply control chip, makes its work.In addition, providing 32kHz's by clock chip
Clock signal keeps it synchronous with system holding.
Smart phone liquid crystal display circuit can generally be directly connected to the image processing circuit module in processor, intelligence
Mobile phone display screen circuit directly controls the display state of liquid crystal display, and Fig. 8 is liquid crystal display screen of mobile phone circuit diagram.Wherein, X1600 is
The circuit interface of mobile phone display screen, wherein DSI1_CLKP, DSI1_CLKN, DSI1_DP0, DSI1_DNO are data-signal；RES
For data controlling signal, for controlling the register in circuit of display driving；TE is feedback signal, from liquid crystal display to answering
A TE signal is fed back with processor D1400, application processor D1400 just starts to send display data to display screen later；VSE
It is used to input 1.8V supply voltage to liquid crystal display with VDD；VPN is used to input 3.7V supply voltage to liquid crystal display.
D1400 has been internally integrated image processing circuit, is responsible for processing image data, is also integrated with liquid crystal screen controller, is responsible for providing liquid
Control signal needed for crystal display screen, and processor is responsible for need content transport to be shown to liquid crystal display, and is responsible for pipe
Manage liquid crystal screen controller.
There are liquid crystal display driver and related circuit on liquid crystal display, is responsible for receiving the signal from liquid crystal screen controller
And data, and liquid crystal molecule is driven to show content.After mobile phone power-on work, application processor D1400 passes through L6 pin first
Liquid crystal display driver into liquid crystal display sends control signal, while liquid crystal display driver can send feedback letter to processor
Number, its internal liquid crystal screen controller is entered by the L5 pin of D1400.Liquid crystal after receiving this feedback signal, in processor
Screen controller begins through V21, U21, V20, U20 pin and sends data-signal to the driver of liquid crystal display.Liquid crystal simultaneously
The data-signal received can be converted into liquid crystal molecule driving signal by the driver of display screen, and driving liquid crystal molecule shows data
Information completes display.
In conclusion the utility model proposes screen luminance of mobile phone adjust circuit, can avoid mobile phone starting when pair
The stimulation of user's human eye.
Here the description and application of the utility model are illustrative, are not wishing to for the scope of the utility model being limited in
It states in embodiment.The deformation and change of embodiments disclosed herein be it is possible, for the ordinary skill people of those this fields
The replacement of embodiment and equivalent various parts are well known for member.It should be appreciated by the person skilled in the art that not taking off
In the case where spirit or essential characteristics from the utility model, the utility model can in other forms, structure, arrangement, ratio,
And it is realized with other components, material and component.It, can be to this in the case where not departing from the scope of the utility model and spirit
In disclosed embodiment carry out other deformations and change.
Claims (8)
1. a kind of screen luminance of mobile phone adjusts circuit, which is characterized in that the adjusting circuit includes: power circuit, Base-Band Processing
Device, liquid crystal display drive circuit, touches drive circuit, LED backlight drive circuit at application processor；
The baseband processor is separately connected application processor, LED backlight drive circuit, and application processor connects liquid crystal display driving
Circuit；The power circuit be separately connected baseband processor, application processor, liquid crystal display drive circuit, touch drive circuit,
LED backlight drive circuit；
The liquid crystal display drive circuit connects liquid crystal display, and the touch drive circuit connects touch tablet, the LED backlight
Driving circuit connects LED backlight；
The power circuit includes power supply control chip, charging interface, field-effect tube, inductance, the first filter capacitor, the second filtering
Capacitor, reset chip, charge controlling chip；
The power supply control chip is separately connected charging interface, field-effect tube, inductance, the second filter capacitor, baseband processor, answers
Position chip, charge controlling chip, the first filter capacitor of inductance connection；
The application processor is equipped with clock circuit, and the clock circuit includes crystal oscillator, first capacitor C1, the second capacitor C2；Institute
Application processor is stated equipped with crystal oscillator input pin XIN, crystal oscillator output pin XOUT；The crystal oscillator input pin XIN of application processor connects respectively
The first end of crystal oscillator, the second end of first capacitor C1 are connect, crystal oscillator output pin XOUT is separately connected the second end of crystal oscillator, the second capacitor
The second end of C2；The first end of first capacitor C1, the first end of the second capacitor C2 are grounded respectively；
The application processor is connected with light sensation circuit；The light sensation circuit includes the first triode Q1, the second triode Q2, the
Three triode Q3, the 4th triode Q4, the 2nd 1 resistance R21, the two or two resistance R22, the two or three resistance R23, the two or four resistance
R24；
The second end of the 2nd 1 resistance R21 is separately connected the transmitting of the cathode of the first LED light LED1, the first triode Q1
Pole, the emitter of the second triode Q2, the anode of the second LED light LED2, the two or two resistance R22 first end, the two or two resistance
The second end of R22 is grounded；
The base stage of the first triode Q1 is separately connected the anode of the first LED light LED1, the cathode of the second LED light LED2,
The base stage of two triode Q2；The base stage of the source electrode connection third transistor Q3 of first triode Q1, the source electrode of the second triode Q2
Connect the base stage of the 4th triode Q4；The source electrode of the third transistor Q3 is grounded by the two or three resistance R23, the 4th triode
The source electrode of Q4 connects the second end of the two or four resistance R24, the emitter ground connection of the 4th triode Q4；
The liquid crystal display drive circuit include mobile phone display screen circuit interface chip X1600, zero capacitance C0, first capacitor C1,
Second capacitor C2, third capacitor C3, the 4th capacitor C4, the 5th capacitor C5, the 6th capacitor C6, the 7th capacitor C7, zero inductance L0,
First inductance L1, the second inductance L2, zero resistance R0, the 2nd 1 resistance R21, the 0th transformer Z0, the first transformer Z1；
The third pin of the mobile phone display screen circuit interface chip X1600 connects the first end of the 0th transformer Z0, using place
The DSI1_CLKP pin for managing device connects the second end of the 0th transformer Z0, the DSI1_CLKN pin connection the 0th of application processor
The third end of transformer Z0, the 4th pin of mobile phone display screen circuit interface chip X1600 connect the 4th of the 0th transformer Z0 the
End；The 6th pin of the mobile phone display screen circuit interface chip X1600 connects the first end of the first transformer Z1, using processing
The DSI1_DP0 pin of device connects the second end of the first transformer Z1, and the DSI1_DN0 pin of application processor connects the first transformation
The third end of device Z1, the 7th pin of mobile phone display screen circuit interface chip X1600 connect the 4th end of the first transformer Z1；
The first three-prong of the mobile phone display screen circuit interface chip X1600 is separately connected the first end of the 6th capacitor C6,
The first end of one resistance R1, the second end ground connection of the 6th capacitor C6, the second end connection application processor of first resistor R1
GPIO37 pin；The one or nine pin of the mobile phone display screen circuit interface chip X1600 is separately connected the of the 7th capacitor C7
One end, zero resistance R0 first end, the 7th capacitor C7 second end ground connection, zero resistance R0 second end connection application processing
The GPIO33 pin of device；
The one or two pin of the mobile phone display screen circuit interface chip X1600 is separately connected mobile phone display screen circuit interface chip
The one or four pin of X1600, the first end of first capacitor C1, the first end of zero capacitance C0, the second end of zero inductance L0, the
Second end, the second end of zero capacitance C0 of one capacitor C1 is grounded respectively, the first end connection 1.8V power supply electricity of zero inductance L0
Pressure；
The one or five pin of the mobile phone display screen circuit interface chip X1600 is separately connected mobile phone display screen circuit interface chip
The one or seven pin, the mobile phone display screen circuit interface of the one or six pin of X1600, mobile phone display screen circuit interface chip X1600
The one or eight pin of chip X1600, the first end of the 5th capacitor C5, the first end of the 4th capacitor C4, third capacitor C3 first
End, the second inductance L2 second end, the second end of the 5th capacitor C5, the second end of the 4th capacitor C4, third capacitor C3 second
End is grounded respectively, and the first end of the second inductance L2 connects the second end of the first inductance L1, the second end connection of the first inductance L1
The first end of 3.7V supply voltage, the second capacitor C2, the second end ground connection of the second capacitor C2；
The LED backlight drive circuit includes LED drive chip, the one one inductance L11, the one one capacitor C11, the one or two capacitor
C12, the one or three capacitor C13, the one one resistance R11, the one or two resistance R12, one LED light V1 of V, two LED light V2 of V, V three
LED light V3；
The first port of the baseband processor is separately connected the end SCL of the second end of the one one resistance R11, LED drive chip
Mouthful, the first end of the one one resistance R11 connects 1.8V supply voltage VCC；
The second port of the baseband processor is separately connected the end SDA of the second end of the one or two resistance R12, LED drive chip
Mouthful, the first end of the one or two resistance R12 connects 1.8V supply voltage VCC；
The vdd terminal mouth of the LED drive chip is separately connected the port ADDR_SELO of LED drive chip, the one one capacitor C11
First end, the second end of 3.7V supply voltage VCC, the one or two capacitor C12 ground connection；
The anode of the port the B connection three LED light V3 of V of the LED drive chip；
The port R of the LED drive chip connects the first end of the one one inductance L11, the second end difference of the one one inductance L11
Connect the first end of the one or three capacitor C13, the anode of one LED light V1 of V, two LED light V2 of V anode, the one or three capacitor C13
Second end ground connection, the cathode of one LED light V1 of V, the cathode of two LED light V2 of V are grounded respectively；The LED drive chip
The port VOUT connects the first end of the one or two capacitor C12, the second end ground connection of the one or two capacitor C12.
2. a kind of screen luminance of mobile phone adjusts circuit, which is characterized in that the adjusting circuit includes: power circuit, Base-Band Processing
Device, application processor, liquid crystal display drive circuit, LED backlight drive circuit；
The baseband processor is separately connected application processor, LED backlight drive circuit, and application processor connects liquid crystal display driving
Circuit；The liquid crystal display drive circuit connects liquid crystal display, and the LED backlight drive circuit connects LED backlight；
The power circuit is separately connected baseband processor, application processor, liquid crystal display drive circuit, LED backlight drive circuit；
The application processor is connected with light sensation circuit.
3. screen luminance of mobile phone according to claim 2 adjusts circuit, it is characterised in that:
It further includes touching drive circuit that the screen luminance of mobile phone, which adjusts circuit, and baseband processor connects touch tablet driving electricity
Road, the touch drive circuit connect touch tablet.
4. screen luminance of mobile phone according to claim 2 adjusts circuit, it is characterised in that:
The power circuit includes power supply control chip, charging interface, field-effect tube, inductance, the first filter capacitor, the second filtering
Capacitor, reset chip, charge controlling chip；
The power supply control chip is separately connected charging interface, field-effect tube, inductance, the second filter capacitor, baseband processor, answers
Position chip, charge controlling chip, the first filter capacitor of inductance connection.
5. screen luminance of mobile phone according to claim 2 adjusts circuit, it is characterised in that:
The application processor is equipped with clock circuit, and the clock circuit includes crystal oscillator, first capacitor C1, the second capacitor C2；Institute
Application processor is stated equipped with crystal oscillator input pin XIN, crystal oscillator output pin XOUT；The crystal oscillator input pin XIN of application processor connects respectively
The first end of crystal oscillator, the second end of first capacitor C1 are connect, crystal oscillator output pin XOUT is separately connected the second end of crystal oscillator, the second capacitor
The second end of C2；The first end of first capacitor C1, the first end of the second capacitor C2 are grounded respectively.
6. screen luminance of mobile phone according to claim 2 adjusts circuit, it is characterised in that:
The light sensation circuit includes the first triode Q1, the second triode Q2, third transistor Q3, the 4th triode Q4, second
One resistance R21, the two or two resistance R22, the two or three resistance R23, the two or four resistance R24；
The second end of the 2nd 1 resistance R21 is separately connected the transmitting of the cathode of the first LED light LED1, the first triode Q1
Pole, the emitter of the second triode Q2, the anode of the second LED light LED2, the two or two resistance R22 first end, the two or two resistance
The second end of R22 is grounded；
The base stage of the first triode Q1 is separately connected the anode of the first LED light LED1, the cathode of the second LED light LED2,
The base stage of two triode Q2；The base stage of the source electrode connection third transistor Q3 of first triode Q1, the source electrode of the second triode Q2
Connect the base stage of the 4th triode Q4；The source electrode of the third transistor Q3 is grounded by the two or three resistance R23, the 4th triode
The source electrode of Q4 connects the second end of the two or four resistance R24, the emitter ground connection of the 4th triode Q4.
7. screen luminance of mobile phone according to claim 2 adjusts circuit, it is characterised in that:
The liquid crystal display drive circuit include mobile phone display screen circuit interface chip X1600, zero capacitance C0, first capacitor C1,
Second capacitor C2, third capacitor C3, the 4th capacitor C4, the 5th capacitor C5, the 6th capacitor C6, the 7th capacitor C7, zero inductance L0,
First inductance L1, the second inductance L2, zero resistance R0, first resistor R1, the 0th transformer Z0, the first transformer Z1；
The third pin of the mobile phone display screen circuit interface chip X1600 connects the first end of the 0th transformer Z0, using place
The DSI1_CLKP pin for managing device connects the second end of the 0th transformer Z0, the DSI1_CLKN pin connection the 0th of application processor
The third end of transformer Z0, the 4th pin of mobile phone display screen circuit interface chip X1600 connect the 4th of the 0th transformer Z0 the
End；The 6th pin of the mobile phone display screen circuit interface chip X1600 connects the first end of the first transformer Z1, using processing
The DSI1_DP0 pin of device connects the second end of the first transformer Z1, and the DSI1_DN0 pin of application processor connects the first transformation
The third end of device Z1, the 7th pin of mobile phone display screen circuit interface chip X1600 connect the 4th end of the first transformer Z1；
The first three-prong of the mobile phone display screen circuit interface chip X1600 is separately connected the first end of the 6th capacitor C6,
The first end of one resistance R1, the second end ground connection of the 6th capacitor C6, the second end connection application processor of first resistor R1
GPIO37 pin；The one or nine pin of the mobile phone display screen circuit interface chip X1600 is separately connected the of the 7th capacitor C7
One end, zero resistance R0 first end, the 7th capacitor C7 second end ground connection, zero resistance R0 second end connection application processing
The GPIO33 pin of device；
The one or two pin of the mobile phone display screen circuit interface chip X1600 is separately connected mobile phone display screen circuit interface chip
The one or four pin of X1600, the first end of first capacitor C1, the first end of zero capacitance C0, the second end of zero inductance L0, the
Second end, the second end of zero capacitance C0 of one capacitor C1 is grounded respectively, the first end connection 1.8V power supply electricity of zero inductance L0
Pressure；
The one or five pin of the mobile phone display screen circuit interface chip X1600 is separately connected mobile phone display screen circuit interface chip
The one or seven pin, the mobile phone display screen circuit interface of the one or six pin of X1600, mobile phone display screen circuit interface chip X1600
The one or eight pin of chip X1600, the first end of the 5th capacitor C5, the first end of the 4th capacitor C4, third capacitor C3 first
End, the second inductance L2 second end, the second end of the 5th capacitor C5, the second end of the 4th capacitor C4, third capacitor C3 second
End is grounded respectively, and the first end of the second inductance L2 connects the second end of the first inductance L1, the second end connection of the first inductance L1
The first end of 3.7V supply voltage, the second capacitor C2, the second end ground connection of the second capacitor C2.
8. screen luminance of mobile phone according to claim 2 adjusts circuit, it is characterised in that:
The LED backlight drive circuit includes LED drive chip, the one one inductance L11, the one one capacitor C11, the one or two capacitor
C12, the one or three capacitor C13, the one one resistance R11, the one or two resistance R12, one LED light V1 of V, two LED light V2 of V, V three
LED light V3；
The first port of the baseband processor is separately connected the end SCL of the second end of the one one resistance R11, LED drive chip
Mouthful, the first end of the one one resistance R11 connects 1.8V supply voltage VCC；
The second port of the baseband processor is separately connected the end SDA of the second end of the one or two resistance R12, LED drive chip
Mouthful, the first end of the one or two resistance R12 connects 1.8V supply voltage VCC；
The vdd terminal mouth of the LED drive chip is separately connected the port ADDR_SELO of LED drive chip, the one one capacitor C11
First end, the second end of 3.7V supply voltage VCC, the one or two capacitor C12 ground connection；
The anode of the port the B connection three LED light V3 of V of the LED drive chip；
The port R of the LED drive chip connects the first end of the one one inductance L11, the second end difference of the one one inductance L11
Connect the first end of the one or three capacitor C13, the anode of one LED light V1 of V, two LED light V2 of V anode, the one or three capacitor C13
Second end ground connection, the cathode of one LED light V1 of V, the cathode of two LED light V2 of V are grounded respectively；The LED drive chip
The port VOUT connects the first end of the one or two capacitor C12, the second end ground connection of the one or two capacitor C12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821400741.9U CN208985652U (en) | 2018-08-29 | 2018-08-29 | Screen luminance of mobile phone adjusts circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821400741.9U CN208985652U (en) | 2018-08-29 | 2018-08-29 | Screen luminance of mobile phone adjusts circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208985652U true CN208985652U (en) | 2019-06-14 |
Family
ID=66782593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821400741.9U Expired - Fee Related CN208985652U (en) | 2018-08-29 | 2018-08-29 | Screen luminance of mobile phone adjusts circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208985652U (en) |
-
2018
- 2018-08-29 CN CN201821400741.9U patent/CN208985652U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103366657B (en) | Flicker regulates system | |
| CN107749289A (en) | Brightness adjusting method, device, brightness control system and augmented reality equipment | |
| CN105590590A (en) | Backlight brightness automatic adjusting system suitable for different liquid crystal panels and liquid crystal display with backlight brightness automatic adjusting system | |
| CN106804071B (en) | A kind of intelligent LED plant growth lamp | |
| CN207517343U (en) | Brightness control system and augmented reality equipment | |
| CN206237652U (en) | Flash control circuit and mobile terminal | |
| CN207531123U (en) | A kind of system for adjusting room light | |
| CN208985652U (en) | Screen luminance of mobile phone adjusts circuit | |
| CN208737868U (en) | A kind of display of band control adaptive environment brightness | |
| CN108320721A (en) | Brightness regulating apparatus and its brightness adjusting method | |
| CN204190977U (en) | Multifunctional LED simulating nature light gradually bright system | |
| CN217133672U (en) | Non-contact gesture recognition shadowless lamp control panel of adjusting luminance | |
| CN207744190U (en) | A kind of lamp light control system of LED light | |
| CN206950410U (en) | A kind of infusion pump for automatically adjusting brightness of display screen | |
| CN207781169U (en) | Circuit for LED television display screen automatic regulating lightness | |
| CN211831251U (en) | Indoor light intelligent regulation system | |
| CN210868272U (en) | Control circuit and switch of intelligent mobile switch | |
| CN207475948U (en) | There is the intelligent lamp for reducing pupil light visual impact | |
| CN209845390U (en) | Intelligent learning desk lamp | |
| CN207884934U (en) | Brightness regulating circuit based on bus marco and photographic device | |
| CN209949509U (en) | Medical illuminating lamp liquid crystal display terminal control panel supporting automatic adjustment and light supplement control | |
| CN205428459U (en) | Intelligence digital information pavilion with photoinduction function | |
| CN201859638U (en) | Backlight control circuit | |
| CN206134215U (en) | According to environment screen intensity regulator circuit and display screen | |
| CN216852432U (en) | Automatic light-adjusting Internet of things table lamp device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190614 |