CN106409215A - LED backlight control method - Google Patents
LED backlight control method Download PDFInfo
- Publication number
- CN106409215A CN106409215A CN201610886127.7A CN201610886127A CN106409215A CN 106409215 A CN106409215 A CN 106409215A CN 201610886127 A CN201610886127 A CN 201610886127A CN 106409215 A CN106409215 A CN 106409215A
- Authority
- CN
- China
- Prior art keywords
- led
- module
- contact
- led light
- socket
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Led Devices (AREA)
Abstract
The invention discloses an LED backlight control method for controlling an LED backlight source. The method comprises: step one, carrying out initialization; step two, display parameter data are loaded to an LED light-emitting array; and step three, whether the display parameter data change; if not, waiting is carried out continuously; and if so, a changed data assignment value is provided for the data and the step two is carried out. Therefore, controlling of one or more light-emitting modules is realized based on limited port resources and thus the method is easy to implement.
Description
Technical field
The present invention relates to a kind of LED-backlit control method.
Background technology
LED-backlit module generally comprises multiple LED, or is arranged on side, or is arranged on front with array way, due to
It is limited by the limited port resource of controller, currently existing scheme is to be divided into multiple LED multigroup, and every group is separately controlled, this
Plant control mode control effect poor, because the one of LED of control that cannot be single or uncontrollable therein arbitrarily many
Individual LED, during practical application, motility is poor, be additionally, since cannot precise control, therefore energy-saving effect is poor.
In addition, in currently existing scheme, being generally based on the dimming arrangement of concrete application design specialized, autgmentability is poor.
Therefore, it is necessary to design a kind of new LED-backlit control method.
Content of the invention
The technical problem to be solved is to provide a kind of LED-backlit control method, this LED-backlit control method energy
Realize the control of any one or more light emitting modules based on limited port resource, motility good it is easy to implement.
The technical solution of invention is as follows：
A kind of LED-backlit control method, is controlled for LED backlight；LED backlight include LED light emitting array, CPU,
Light-adjusting module, multiway analog switch and M latch；Variable connector selects 1 analog switch for M；The port number of variable connector and lock
The number of storage is M；M is natural number；
LED light emitting array includes M*N LED light module in parallel；Light-adjusting module is connected with power supply；Multiple LED light module
All it is connected with the outfan of light-adjusting module；M*N LED light module is divided into M group, and every group includes N number of LED light module；
Light-adjusting module is controlled by CPU, and CPU controls output voltage or the output current of light-adjusting module by light-adjusting module；
CPU, multiway analog switch, latch and LED light emitting array are sequentially connected：
CPU passes through multiway analog switch and latch controls the luminous mould of any one or any number of LED in LED light emitting array
The gating of block and closing；
Each LED light module includes audion Q, protective resistance R and at least one LED；The C pole of audion Q connects light modulation
The outfan of module, B pole meets the data-out port Qx, x=0,1 ... of latch, N-1;Protection electricity is passed through in the E pole of audion Q
Resistance R ground connection；
The latch signal outfan C1 of CPU connects the output channel of multiway analog switch；The gating end of multiway analog switch is with CPU's
Output port is connected；M input channel of multiway analog switch meets the latch signal input C of M latch respectively；
The N bit data bus of CPU are connected with N number of signal input part D of latch；
N number of signal output part Q of i-th latch connects the B pole of the audion Q of i-th group of N number of LED light module respectively；i=0,
1 ..., M-1；
Rate-determining steps are as follows：
Step 1：Initialization；
Step 2：Loaded and displayed parameter data to LED light emitting array；
Step 3：Judging that display parameters data whether there is change, if being not changed in, continuing waiting for, if changing, after changing
Data be assigned to data, and return to step 2；（Button or touch screen arrange parameter data can be passed through）
The initialization of step 1 is to close（All of LED is made not work）All of LED light module, to display parameters
Data assignment；
The detailed process of described step 2 is：
I-th passage of gating variable connector, the latch signal outfan C1 controlling CPU is rising edge, by i-th group in data
Data is loaded on i-th group of the audion of N number of LED light module；I is followed successively by 1,2 ..., M.
Light-adjusting module is PWM light-adjusting module.
M is 4,8,16 or 32.
N is 8,16 or 32.
Preferably, M is 4, N is 16, the gating end of multiway analog switch is 2.
LED light module is the LED light module with energy-storage function；Light emitting module also includes energy storage inductor L and afterflow
Diode Dx；LED or LED string are connected with energy storage inductor and are formed luminous branch road；Fly-wheel diode and described luminous branch road
In parallel.
M*N LED light module lines up the square array with square net, any 4 LED adjacent up and down
The line of light emitting module forms a square.
M*N LED light module lines up the square array with equilateral triangle grid, and any 3 neighbouring LED send out
The line of optical module position forms an equilateral triangle.
Controller passes through the total current of current detection circuit real-time monitoring light-adjusting module output, when total current is higher than default threshold
During value, reduce the dutycycle of pwm pulse, or close part or all of light emitting module, realize overcurrent protection.
LED light module includes 2 LED and slotting body；Circuit board is provided with socket；It is provided with socket for inserting slotting body
Jack；The bottom of jack is provided with the socket contact for powering for inserting type luminous module；Slotting body be provided with for described
The slotting body contact of socket contact contact；
LED light module has petal lampshade, and petal lampshade is formed by 4 single-lobe docking；One end of 4 single-lobes connects shape
Become the lamp bowl of petal lampshade, the other end of 4 single-lobes forms the outreach part of lampshade, LED light module is located at the bottom of lamp bowl；
The bottom of lamp bowl is plane, and this plane is the light-emitting area of lamp holder, and 4 single-lobes are projected as " ten " font, wantonly 2 phases in light-emitting area
The angle that adjacent single-lobe projects in light-emitting area is 90 degree；
LED light module includes 2 FLAMING DATUMs；Each FLAMING DATUM is a LED；The line of two FLAMING DATUMs with
The centrage of each single-lobe is 45 degree in the angle of light-emitting area projection line.
Socket contact and slotting body contact are 2；Jack is circular hole, and slotting body is cylinder, and the inwall of jack is provided with and institute
State 2 slots of slotting body contact adaptation；2 socket contacts are arranged with regard to the axisymmetrical of jack；2 slotting body contacts are with regard to inserting body
The axisymmetrical arrangement of contact；
The bottom of jack is provided with 2 guide channels of respectively 2 slotting body contact rotary steerings, and the end of guide channel is provided with ring
Shape block, socket contact is arranged on the junction of guide channel and collar stop；
Described socket contact is resilient contact；Socket contact includes base plate, top board, round boss and spring；Spring is arranged on
Between base plate and top board；Round boss is fixed on top board；The top of slotting body contact is sphere, and top board is used for connecing with slotting body contact
Touch, round boss is used for preventing from inserting body contact rollback when no external force acts on.
LED is arranged on lamp plate, and described LED includes lamp bead, support column（53）And reflection shield（54）；Support column is
Two, vertical lamp plate setting, for supporting reflection shield；Reflection shield is arranged on the front end of 2 support columns；Reflection shield is located at lamp bead
Front；Lamp bead is located between 2 support columns.
LED is tri coloured lantern, and socket is connected with the drive circuit for arranging tri coloured lantern color.
Socket is connected with the light adjusting circuit for adjusting tri coloured lantern brightness.One slotting body connects 2-10 lamp holder.Preferably,
One slotting body connects 3 lamp holders.
Socket is connected with remote control circuit.
LED light module includes LED and cylindrical slotting body；
Slotting body is provided with positive pole cutting and negative pole cutting；The outer side edges of positive pole cutting and negative pole cutting are respectively provided with one and have slope
Depressed part；2 depressed area are in the front end of positive pole cutting and negative pole cutting；It is respectively equipped with positive pole stationary contact in 2 depressed parts
With negative pole stationary contact；Circuit board is provided with the socket being adapted to slotting body；Socket has the jack accommodating slotting body；The inwall of jack sets
Have respectively at positive pole cutting and negative pole cutting corresponding positive pole slot and negative pole slot；
For avoiding both positive and negative polarity reversal connection, the width of positive pole cutting is more than the width of negative pole cutting；The width of positive pole slot is more than negative pole
The width of slot；
Positive pole slot and negative pole slot are equipped with a horizontal jack（Radially）；Divide in the jack of positive pole slot and negative pole slot
It is not provided with the positive pole resilient contact with spring and negative pole resilient contact；After slotting body insertion socket, positive pole resilient contact is quiet with positive pole
Contact, negative pole resilient contact is contacted with negative pole stationary contact；Complete to electrically connect.Due to the presence on the slope of depressed part, extract
All very convenient with inserting.
The front end of positive pole resilient contact and negative pole resilient contact is sphere.
The technology design explanation of the present invention：Existing CPU（As single-chip microcomputer, DSP）Deng, port resource is limited, and luminous mould
Block needs light modulation in addition it is also necessary to precise control is although be merely widely used in numeral method field based on the scheme of latch,
But latch is not combined for controlling single light emitting module array with variable connector and light-adjusting module, therefore, this
Bright scheme is original creation.
Beneficial effect：
The LED-backlit control method of the present invention, has the characteristics that：
1. precise control
Combined using variable connector and latch, wherein any one or any number of by display parameters data energy precise control
Light emitting module, realizes precise control.
2. save port resource, favorable expandability.
It is connected with latch using data/address bus, then carry out the gating switching of multiple latch using variable connector, with
Little resource is realized being accurately controlled most, and if need to increase scale, the way of variable connector of only need to upgrading and the latch of array
The quantity of device is it is easy to extend.The general frame of circuit is constant.CPU need not be changed.
3. reliability is high；
Multiple LED are divided into N group, can rotation startup and switch operating, it is to avoid some lamp work long hours caloric value big and
Damage LED, therefore, reliability is high.
4. it is easy to Isobarically Control and overcurrent protection：
Because multiple light emitting modules are in parallel, therefore it is suitable for Isobarically Control, in addition the employing of inductance and fly-wheel diode is permanent further
Determine electric current, it is to avoid LED flickering, stable light efficiency is provided.Controller implementing monitoring output current, adopts during excessively stream in time
Take the measure reducing electric current, ensure light source service life.
5. circuit is simply it is easy to implement.
Multiway analog switch, light modulation chip and MCU are mature modules it is easy to implement.
6. adopt PWM to dim mechanism, enable stepless dimming；
In sum, this LED-backlit control method feature richness, reliability is high, can precise control, and be easy to extension it is easy to
Implement, be skillfully constructed.
Body mechanism inserted by the socket of the uniqueness that the present invention adopts, and is easy to the installation and removal of LED.：
（1）Using slotting body-socket bindiny mechanism, easy to loading and unloading it is easy to produce in enormous quantities.
（2）Devise the contact matching mechanism of screw-in, and devise elastic base contact, can effectively prevent from inserting body
Contact rollback, connection reliability is high.
（3）LED design is unique, can prevent too strong light from projecting using reflection shield, and the dark portion that reflection shield is formed
Just simulate the moulding of Flos Osmanthi Fragrantis with petal lampshade, this outward appearance is unique.
（4）The light and shade of LED can be adjusted using light adjusting circuit, brightness regulation, practicality are carried out to LED using remote control
Good.
The present invention be have also been devised another kind of succinct slotting body and coordinated with socket, and structure is simply it is easy to connecting and dismantling, practical
Property is good.
Brief description
Fig. 1 is the totally electric theory diagram of LED backlight；
Fig. 2 is light-adjusting module schematic diagram；
Fig. 3 is square light emitting array schematic diagram；
Fig. 4 is triangle light emitting array schematic diagram；
Fig. 5 is the structural representation inserting the inserting type luminous module connecting 3 lamp holders on body；
Fig. 6 is the upward view of lamp holder；
Fig. 7 is the structural representation inserting the inserting type luminous module connecting 1 lamp holder on body；
Fig. 8 is to insert body top end view；
Fig. 9 is socket outer face schematic diagram；
Figure 10 is socket generalized section；
Figure 11 is for A-A in Figure 10 to profile；
Figure 12 is resilient socket contact and slotting body contact cooperation schematic diagram；
Figure 13 is LED lamp structure schematic diagram；
Figure 14 is the slotting body end view of embodiment 3；
Figure 15 is the socket end view of embodiment 3；
Figure 16 is the slotting body socket cooperation schematic diagram of embodiment 3.
Label declaration:1- lamp holder, 2- wire, 3- socket, 4- inserts body contact, 5-LED lamp, 6- single-lobe, 7- jack, and 8- inserts
Groove, 9- socket contact, 10- guide channel, 11- collar stop, 12- inserts body；51- lamp bead, 52- lamp plate, 53- support column, 54- is anti-
Light shield；91- round boss, 92- base plate, 93- top board, 94- spring.41- positive pole stationary contact, 42- negative pole stationary contact, 61- positive pole
Cutting, 62- negative pole cutting, 81- positive pole slot, 22- negative pole slot, 71- positive pole resilient contact, 72- negative pole resilient contact.
Specific embodiment
Below with reference to the drawings and specific embodiments, the present invention is described in further details：
Embodiment 1：As Fig. 1 to 4, a kind of LED-backlit control method, it is controlled for LED backlight；LED backlight includes
LED light emitting array, CPU, light-adjusting module, multiway analog switch and M latch；Variable connector selects 1 analog switch for M；Multichannel
The number of the port number of switch and latch is M；M is natural number；
LED light emitting array includes M*N LED light module in parallel；Light-adjusting module is connected with power supply；Multiple LED light module
All it is connected with the outfan of light-adjusting module；M*N LED light module is divided into M group, and every group includes N number of LED light module；
Light-adjusting module is controlled by CPU, and CPU controls output voltage or the output current of light-adjusting module by light-adjusting module；
CPU, multiway analog switch, latch and LED light emitting array are sequentially connected：
CPU passes through multiway analog switch and latch controls the luminous mould of any one or any number of LED in LED light emitting array
The gating of block and closing；
Each LED light module includes audion Q, protective resistance R and at least one LED；The C pole of audion Q connects light modulation
The outfan of module, B pole meets the data-out port Qx, x=0,1 ... of latch, N-1;Protection electricity is passed through in the E pole of audion Q
Resistance R ground connection；
The latch signal outfan C1 of CPU connects the output channel of multiway analog switch；The gating end of multiway analog switch is with CPU's
Output port is connected；M input channel of multiway analog switch meets the latch signal input C of M latch respectively；
The N bit data bus of CPU are connected with N number of signal input part D of latch；
N number of signal output part Q of i-th latch connects the B pole of the audion Q of i-th group of N number of LED light module respectively；i=0,
1 ..., M-1；
Rate-determining steps are as follows：
Step 1：Initialization；
Step 2：Loaded and displayed parameter data to LED light emitting array；
Step 3：Judging that display parameters data whether there is change, if being not changed in, continuing waiting for, if changing, after changing
Data be assigned to data, and return to step 2；（Button or touch screen arrange parameter data can be passed through）
The initialization of step 1 is to close（All of LED is made not work）All of LED light module, to display parameters
Data assignment；
The detailed process of described step 2 is：
I-th passage of gating variable connector, the latch signal outfan C1 controlling CPU is rising edge, by i-th group in data
Data is loaded on i-th group of the audion of N number of LED light module；I is followed successively by 1,2 ..., M.
Light-adjusting module is PWM light-adjusting module.
M is 4, N is 16, and the gating end of multiway analog switch is 2, is A and B respectively.
LED light module is the LED light module with energy-storage function；Light emitting module also includes energy storage inductor L and afterflow
Diode Dx；LED or LED string are connected with energy storage inductor and are formed luminous branch road；Fly-wheel diode and described luminous branch road
In parallel.
M*N LED light module lines up the square array with square net, any 4 LED adjacent up and down
The line of light emitting module forms a square.
M*N LED light module lines up the square array with equilateral triangle grid, and any 3 neighbouring LED send out
The line of optical module position forms an equilateral triangle.
Embodiment 2：On the basis of embodiment 1, LED light module is improved further：
As Fig. 5-13, LED light module includes 2 LED and slotting body 12；Circuit board is provided with socket 3；Be provided with socket for
The jack 7 of body is inserted in insertion；The bottom of jack is provided with the socket contact 9 for powering for inserting type luminous module；Slotting body is provided with
For the slotting body contact 4 contacting with described socket contact；
LED light module has petal lampshade, and petal lampshade is formed by 4 single-lobe 6 docking；One end of 4 single-lobes connects
Form the lamp bowl of petal lampshade, the other end of 4 single-lobes forms the outreach part of lampshade, LED light module is located at the bottom of lamp bowl
Portion；The bottom of lamp bowl is plane, and this plane is the light-emitting area of lamp holder, and 4 single-lobes are projected as " ten " font light-emitting area, wantonly 2
The angle that individual adjacent single-lobe projects in light-emitting area is 90 degree；
LED light module includes 2 FLAMING DATUMs；Each FLAMING DATUM is a LED 5；The line of two FLAMING DATUMs
It is 45 degree with the centrage of each single-lobe in the angle of light-emitting area projection line.
Socket contact and slotting body contact are 2；Jack is circular hole, and slotting body is cylinder, and the inwall of jack is provided with and institute
State 2 slots 8 of slotting body contact adaptation；2 socket contacts are arranged with regard to the axisymmetrical of jack；2 slotting body contacts are with regard to inserting
The axisymmetrical arrangement of body contact；
The bottom of jack is provided with 2 guide channels 10 of respectively 2 slotting body contact rotary steerings, and the end of guide channel is provided with
Collar stop 11, socket contact is arranged on the junction of guide channel and collar stop；
Described socket contact is resilient contact；Socket contact includes base plate 92, top board 93, round boss 91 and spring 94；Bullet
Spring is arranged between the bottom panel and top panel；Round boss is fixed on top board；The top of slotting body contact is sphere, and top board is used for and inserts
Body contact, round boss is used for preventing from inserting body contact rollback when no external force acts on.
LED is arranged on lamp plate 52, and described LED includes lamp bead 51, support column 53 and reflection shield 54；Support column is
Two, vertical lamp plate setting, for supporting reflection shield；Reflection shield is arranged on the front end of 2 support columns；Reflection shield is located at lamp bead
Front；Lamp bead is located between 2 support columns.
LED is tri coloured lantern, and socket is connected with the drive circuit for arranging tri coloured lantern color.
Socket is connected with the light adjusting circuit for adjusting tri coloured lantern brightness.One slotting body connects 2-10 lamp holder.Preferably,
One slotting body connects 3 lamp holders.
Socket is connected with remote control circuit.
Embodiment 3：On the basis of embodiment 1, the attachment structure of LED light module is improved further：As Figure 14-
16, LED light module includes LED and cylindrical slotting body 12；
Slotting body is provided with positive pole cutting 61 and negative pole cutting 62；The outer side edges of positive pole cutting and negative pole cutting are respectively provided with one to be had
The depressed part on slope；2 depressed area are in the front end of positive pole cutting and negative pole cutting；It is respectively equipped with positive pole quiet in 2 depressed parts
Contact 41 and negative pole stationary contact 42；Circuit board is provided with the socket being adapted to slotting body；Socket has the jack accommodating slotting body；Jack
Inwall be provided with respectively at positive pole cutting and negative pole cutting corresponding positive pole slot and negative pole slot；
For avoiding both positive and negative polarity reversal connection, the width of positive pole cutting is more than the width of negative pole cutting；The width of positive pole slot is more than negative pole
The width of slot；
Positive pole slot and negative pole slot are equipped with a horizontal jack（Radially）；Divide in the jack of positive pole slot and negative pole slot
It is not provided with the positive pole resilient contact 71 with spring 94 and negative pole resilient contact 72；After slotting body insertion socket, positive pole resilient contact with
Positive pole stationary contact contacts, and negative pole resilient contact is contacted with negative pole stationary contact；Complete to electrically connect.The depositing of slope due to depressed part
Extracting and inserting all very convenient.
Specifically, can part LED module adopt embodiment 2 slotting body socket bindiny mechanism, part LED module adopt
The slotting body socket bindiny mechanism of embodiment 3.
Claims (10)
1. a kind of LED-backlit control method is it is characterised in that be controlled for LED backlight；LED backlight includes LED
Light emitting array, CPU, light-adjusting module, multiway analog switch and M latch；Variable connector selects 1 analog switch for M；Variable connector
Port number and the number of latch be M；M is natural number；
LED light emitting array includes M*N LED light module in parallel；Light-adjusting module is connected with power supply；Multiple LED light module
All it is connected with the outfan of light-adjusting module；M*N LED light module is divided into M group, and every group includes N number of LED light module；
Light-adjusting module is controlled by CPU, and CPU controls output voltage or the output current of light-adjusting module by light-adjusting module；
CPU, multiway analog switch, latch and LED light emitting array are sequentially connected：
CPU passes through multiway analog switch and latch controls the luminous mould of any one or any number of LED in LED light emitting array
The gating of block and closing；
Each LED light module includes audion Q, protective resistance R and at least one LED；The C pole of audion Q connects light modulation
The outfan of module, B pole meets the data-out port Qx, x=0,1 ... of latch, N-1;Protection electricity is passed through in the E pole of audion Q
Resistance R ground connection；
The latch signal outfan C1 of CPU connects the output channel of multiway analog switch；The gating end of multiway analog switch is with CPU's
Output port is connected；M input channel of multiway analog switch meets the latch signal input C of M latch respectively；
The N bit data bus of CPU are connected with N number of signal input part D of latch；
N number of signal output part Q of i-th latch connects the B pole of the audion Q of i-th group of N number of LED light module respectively；i=0,
1 ..., M-1；
Rate-determining steps are as follows：
Step 1：Initialization；
Step 2：Loaded and displayed parameter data to LED light emitting array；
Step 3：Judging that display parameters data whether there is change, if being not changed in, continuing waiting for, if changing, after changing
Data be assigned to data, and return to step 2；
The initialization of step 1 is to close（All of LED is made not work）All of LED light module, to display parameters
Data assignment；
The detailed process of described step 2 is：
I-th passage of gating variable connector, the latch signal outfan C1 controlling CPU is rising edge, by i-th group in data
Data is loaded on i-th group of the audion of N number of LED light module；I is followed successively by 1,2 ..., M.
2. LED-backlit control method according to claim 1 is it is characterised in that light-adjusting module is PWM light-adjusting module.
3. LED-backlit control method according to claim 1 it is characterised in that M be 4,8,16 or 32, N be 8,16 or
32.
4. LED-backlit control method according to claim 1 it is characterised in that M be 4, N be 16, multiway analog switch
Gating end is 2.
5. LED-backlit control method according to claim 1 is it is characterised in that LED light module is to have energy-storage function
LED light module；Light emitting module also includes energy storage inductor L and sustained diode x；LED or LED string and energy storage inductor
Series connection forms luminous branch road；Fly-wheel diode and described luminous branch circuit parallel connection.
6. the LED-backlit control method according to any one of claim 1-5 is it is characterised in that M*N LED light module
Line up the square array with square net, the line of any 4 LED light module adjacent up and down is just forming one
Square.
7. the LED-backlit control method according to any one of claim 1-5 is it is characterised in that M*N LED light module
Line up the square array with equilateral triangle grid, the line of any 3 neighbouring LED light module positions is just forming one
Triangle.
8. LED-backlit control method according to claim 7 is it is characterised in that controller is real by current detection circuit
When monitoring light-adjusting module output total current, when total current be higher than predetermined threshold value when, reduce pwm pulse dutycycle, or close
Partly or entirely light emitting module, realizes overcurrent protection.
9. LED-backlit control method according to claim 8 it is characterised in that LED light module include 2 LED and
Slotting body（12）；Circuit board is provided with socket（3）；It is provided with the jack for inserting slotting body in socket（7）；The bottom of jack is provided with use
In the socket contact powered for inserting type luminous module（9）；Slotting body is provided with and touches for the slotting body being contacted with described socket contact
Point（4）；
Socket contact and slotting body contact are 2；Jack is circular hole, and slotting body is cylinder, and the inwall of jack is provided with to be inserted with described
2 slots (8) of body contact adaptation；2 socket contacts are arranged with regard to the axisymmetrical of jack；2 slotting body contacts are with regard to inserting body
The axisymmetrical arrangement of contact；
The bottom of jack is provided with 2 guide channels of respectively 2 slotting body contact rotary steerings（10）, the end of guide channel sets
There is collar stop（11）, socket contact is arranged on the junction of guide channel and collar stop；
Described socket contact is resilient contact；Socket contact includes base plate（92）, top board（93）, round boss（91）And spring
（94）；Spring is arranged between the bottom panel and top panel；Round boss is fixed on top board；The top of slotting body contact is sphere, top board
For with slotting body contact, round boss is used for preventing inserting body contact rollback when no external force acts on.
10. LED-backlit control method according to claim 8 is it is characterised in that LED light module includes LED and circle
The slotting body of cylindricality（12）；
Slotting body is provided with positive pole cutting（61）With negative pole cutting（62）；The outer side edges of positive pole cutting and negative pole cutting are respectively provided with one
Has sloping depressed part；2 depressed area are in the front end of positive pole cutting and negative pole cutting；Just it is respectively equipped with 2 depressed parts
Pole stationary contact（41）With negative pole stationary contact（42）；Circuit board is provided with the socket being adapted to slotting body；Socket has to accommodate inserts body
Jack；The inwall of jack is provided with respectively at positive pole cutting and negative pole cutting corresponding positive pole slot and negative pole slot；
For avoiding both positive and negative polarity reversal connection, the width of positive pole cutting is more than the width of negative pole cutting；The width of positive pole slot is more than negative pole
The width of slot；
Positive pole slot and negative pole slot are equipped with a horizontal jack；It is respectively equipped with the jack of positive pole slot and negative pole slot
Band spring（94）Positive pole resilient contact（71）With negative pole resilient contact（72）；Before positive pole resilient contact and negative pole resilient contact
Hold as sphere；After slotting body is inserted into socket, positive pole resilient contact is contacted with positive pole stationary contact, negative pole resilient contact and negative pole stationary contact
Point contact；Complete to electrically connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610886127.7A CN106409215A (en) | 2016-10-10 | 2016-10-10 | LED backlight control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610886127.7A CN106409215A (en) | 2016-10-10 | 2016-10-10 | LED backlight control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106409215A true CN106409215A (en) | 2017-02-15 |
Family
ID=59229497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610886127.7A Pending CN106409215A (en) | 2016-10-10 | 2016-10-10 | LED backlight control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106409215A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108682376A (en) * | 2018-02-14 | 2018-10-19 | 友达光电股份有限公司 | Overcurrent protection system and overcurrent protection method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101127191A (en) * | 2007-09-24 | 2008-02-20 | 杭州士兰微电子股份有限公司 | LED matrix screen parameter calibration system and method |
| CN201054839Y (en) * | 2007-05-17 | 2008-04-30 | 比亚迪股份有限公司 | A LED lamp cascading drive and control circuit |
| CN102548083A (en) * | 2010-12-07 | 2012-07-04 | 西安博昱新能源有限公司 | Circuit control system of multiple groups of LED (light-emitting diode) lamps |
| CN102622963A (en) * | 2012-04-13 | 2012-08-01 | 南京信息工程大学 | Simple and universal full-hardware control system of display screen |
-
2016
- 2016-10-10 CN CN201610886127.7A patent/CN106409215A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201054839Y (en) * | 2007-05-17 | 2008-04-30 | 比亚迪股份有限公司 | A LED lamp cascading drive and control circuit |
| CN101127191A (en) * | 2007-09-24 | 2008-02-20 | 杭州士兰微电子股份有限公司 | LED matrix screen parameter calibration system and method |
| CN102548083A (en) * | 2010-12-07 | 2012-07-04 | 西安博昱新能源有限公司 | Circuit control system of multiple groups of LED (light-emitting diode) lamps |
| CN102622963A (en) * | 2012-04-13 | 2012-08-01 | 南京信息工程大学 | Simple and universal full-hardware control system of display screen |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108682376A (en) * | 2018-02-14 | 2018-10-19 | 友达光电股份有限公司 | Overcurrent protection system and overcurrent protection method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106409215A (en) | LED backlight control method | |
| CN206055510U (en) | A kind of infrared induction solar energy wall lamp | |
| CN107062048A (en) | A kind of assembling of Modular LED lamp and light-dimming method | |
| CN205356765U (en) | Urban illumination control system | |
| CN204756774U (en) | Electron candle | |
| CN106523935A (en) | Integrated type LED light-emitting module | |
| CN102752935A (en) | Solar light-emitting diode (LED) lamp controller | |
| CN202708704U (en) | Color-changing light-emitting diode (LED) lamp | |
| CN102128373A (en) | Integrated straight lamp based on high-luminous efficiency light emitting diode | |
| CN209314120U (en) | A kind of LED luminous flame circuit for lamp, LED storm lantern and candle lamp | |
| CN106870996A (en) | A kind of Modular LED desk lamp | |
| CN205299350U (en) | Light -operated solar lamp of intelligence | |
| CN219499583U (en) | Solar intelligent floodlight | |
| CN111059508A (en) | Energy-saving and environment-friendly highway LED illuminating lamp | |
| CN104748059A (en) | Hidden contour light of wall tile | |
| CN201081138Y (en) | Solar energy LED lawn lamp | |
| CN205299186U (en) | Light -emitting diode (LED) bulb lamp | |
| CN106704871A (en) | Assembling and light adjusting method of assembled table lamp | |
| CN204254470U (en) | Solar lawn lamp | |
| CN205299354U (en) | Integrated solar street lamp | |
| CN204811609U (en) | Wide spectrum LED moth -killing lamp of many crests | |
| CN109389936A (en) | Matrix LED controls display device | |
| CN211399407U (en) | Intelligent induction flexible lamp strip | |
| CN106870967A (en) | A kind of LED illuminating modules based on golden finger connection | |
| CN214948749U (en) | Gardens are with view afforestation wisdom street lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170215 |
|
| RJ01 | Rejection of invention patent application after publication |