CN106782296A - Display screen and its control method, device and system - Google Patents
Display screen and its control method, device and system Download PDFInfo
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- 238000010586 diagram Methods 0.000 description 12
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- GJWAPAVRQYYSTK-UHFFFAOYSA-N [(dimethyl-$l^{3}-silanyl)amino]-dimethylsilicon Chemical compound C[Si](C)N[Si](C)C GJWAPAVRQYYSTK-UHFFFAOYSA-N 0.000 description 1
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- 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]
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Abstract
The invention discloses a kind of display screen and its control method, device and system.Wherein, the control method of the display screen includes：The first color data of each pixel in display screen is obtained, wherein, the first color data includes：The color value of the color value of the first color component, the color value of the second color component and the 3rd color component；The first color data according to each pixel, obtains the second color data of each pixel, wherein, the second color data includes：The color value of the color value of the first color component, the color value of the second color component, the color value of the 3rd color component and the 4th color component；The second color data according to each pixel, controls corresponding LED lighting in each pixel.When the present invention solves local existing display screen or whole face display gray color, there is unnecessary energy loss, cause the technical problem of energy waste.
Description
Technical field
The present invention relates to display screen field, in particular to a kind of display screen and its control method, device and system.
Background technology
Some region of content on computer display is mapped on LED display in real time, as long as that is, calculating
Each pixel in that region is mapped to the respective pixel on LED display in real time on machine display.Each picture of LED display
Element is made up of the dot matrix of red (R), green (G), blue (B) three kinds of light emitting diodes, according to the principle of three primary colours, as long as computer screen
The picture breakdown of upper every bit is delivered in the point array element in LED screen into three kinds of signals of red, green, blue of numeral, is driven respectively
The light emitting diode of dynamic relative color, is so achieved that computer display to the mapping of LED display.
The general frame of LED display control system is as shown in figure 1, whole system is divided into three below part：HDMI
Decoding circuit, sends system, reception system.
1) HDMI decoding circuits：This module is used for obtaining video source data, receives the coded data that video card HDMI makes a slip of the tongue,
Decoded by TMDS, recover rgb video data and control signal.
2) system is sent：This module completes collection and the transmission process of rgb video data.After HDMI decoding circuits
Rgb video data and control signal are sent to transmission system, and transmission system collects a frame data according to control signal, and will regard
Frequency is cached according to write-in data storage RAM.To improve system speed, two block RAM memories are used with ping-pong work
Make, i.e., while FPGA writes a frame data to a block RAM, FPGA carries out read operation to another block RAM, when next frame is processed
Changed, the RAM to last time written data is read out, and the RAM that last time is read out is write, by this
Concurrent performs to realize the fast reading and writing of data.Transmission system is used for the data flow that will receive and is cached, FPGA be responsible for by
The three primary colours gradation data for receiving carries out that γ is counter to be corrected, to meet the gray scale requirement of LED display, and by after correction
Gradation data carries out recombinating caching and gray modulation according to the scan mode of LED display, is that the scanning circuit of LED display is carried
For the drive signal of reference format.Data after treatment carry out subpackage according to the cascade system of LED screen, are sent out by Ethernet chip
See off.
3) reception system：In reception system, FPGA receives the video data that transmission system is transmitted by Ethernet chip,
It is stored in data storage RAM, is worked with ping-pong where like there are two block RAMs.Reception system is received and transmitted on Ethernet
Video data stream, be stored in SRAM and cached after position separates reorganization operation, then serial input to LED display is swept
Retouch display.Both FPGA read display data from RAM, and display data was organized according to gray level 2^10, is changed, and coordinates and moves
Bit string row clock feeding LED display is shown.
LED full-color display screen product, it usually needs the gorgeous colour of display be also required to display gray color (so-called gray color,
Refer to just pure white, black and a series of intermediate colors from black to white in both).It was found that when any pixel shows
When gray color, RGB tri- colors of FGPA always control LED display corresponding pixel points light, and consume excessive electric energy.
For existing display screen is local or during the display gray color of whole face, there is unnecessary energy loss, the energy is caused
The problem of waste, not yet proposes effective solution at present.
The content of the invention
A kind of display screen and its control method, device and system are the embodiment of the invention provides, it is existing at least to solve
Display screen is local or during the display gray color of whole face, there is unnecessary energy loss, causes the technical problem of energy waste.
A kind of one side according to embodiments of the present invention, there is provided control method of display screen, including：Obtain display screen
In each pixel the first color data, wherein, the first color data includes：The color value of the first color component, the second face
The color value of the color value of colouring component and the 3rd color component；The first color data according to each pixel, obtains each picture
Second color data of vegetarian refreshments, wherein, the second color data includes：The color value of the first color component, second color component
The color value of color value, the color value of the 3rd color component and the 4th color component；The second number of colours according to each pixel
According to controlling corresponding LED lighting in each pixel.
Further, the first color data according to each pixel, obtains the second color data bag of each pixel
Include：Judge color value, the color value of the second color component and the 3rd color component of the first color component of each pixel
Whether color value is equal；If the color value of the first color component of each pixel, the color value of the second color component and
The color value of three color components is equal, then using the color value of any one color component as the 4th color component color
Value, and the color value of the color value of the first color component, the color value of the second color component and the 3rd color component is set to
0；If the face of the color value, the color value of the second color component and the 3rd color component of the first color component of each pixel
Colour is unequal, then the color value for obtaining the 4th color component is 0.
Further, if the color value of the first color component of each pixel, the color value of the second color component and
The color value of the 3rd color component is equal, then the second color data according to each pixel, controls phase in each pixel
The lumination of light emitting diode answered includes：Control corresponding first diode of the first color component, the second color component corresponding
Two diodes and the corresponding 3rd diode shut-off of the 3rd color component；According to the color value of the 4th color component, control the 4th
Corresponding 4th LED lighting of color component.
Further, if the color value of the first color component of each pixel, the color value of the second color component and
The color value of the 3rd color component is unequal, then the second color data according to each pixel, controls phase in each pixel
The lumination of light emitting diode answered includes：According to the color value of the first color component, the first color component the corresponding 1st is controlled
Pole tube light-emitting；According to the color value of the second color component, corresponding second LED lighting of the second color component of control；According to
The color value of three color components, corresponding 3rd LED lighting of the first color component of control；Control the 4th color component correspondence
The 4th diode shut-off.
Further, the first diode is the diode for launching feux rouges, and the second diode is the diode for launching green glow, the
Three diodes are the diode for launching blue light, and the 4th diode is the diode for launching white light.
Another aspect according to embodiments of the present invention, additionally provides a kind of control device of display screen, including：Obtain mould
Block, the first color data for obtaining each pixel in display screen, wherein, the first color data includes：First color point
The color value of the color value of amount, the color value of the second color component and the 3rd color component；Processing module, for according to each picture
First color data of vegetarian refreshments, obtains the second color data of each pixel, wherein, the second color data includes：First face
The color of the color value of colouring component, the color value of the second color component, the color value of the 3rd color component and the 4th color component
Value；Control module, for the second color data according to each pixel, corresponding diode is sent out in controlling each pixel
Light.
Further, processing module includes：Judging submodule, the face of the first color component for judging each pixel
Whether the color value of colour, the color value of the second color component and the 3rd color component is equal；First treatment submodule, for such as
The really color value of the color value, the color value of the second color component and the 3rd color component of the first color component of each pixel
It is equal, then using the color value of the first color component as the 4th color component color value, and by the face of the first color component
The color value of colour, the color value of the second color component and the 3rd color component is set to 0；Second processing submodule, for such as
The really color value of the color value, the color value of the second color component and the 3rd color component of the first color component of each pixel
Unequal, then the color value of the 4th color component is 0.
Further, if the color value of the first color component of each pixel, the color value of the second color component and
The color value of the 3rd color component is equal, then control module includes：First control submodule, for controlling the first color component
Corresponding second diode of corresponding first diode, the second color component and corresponding 3rd diode of the 3rd color component are closed
It is disconnected；Second control submodule, for the color value according to the 4th color component, corresponding four or two pole of the 4th color component of control
Pipe is luminous.
Further, if the color value of the first color component of each pixel, the color value of the second color component and
The color value of the 3rd color component is unequal, then control module includes：3rd control submodule, for according to the first color component
Color value, control corresponding first LED lighting of the first color component；4th control submodule, for according to the second color
The color value of component, corresponding second LED lighting of the second color component of control；5th control submodule, for according to the 3rd
The color value of color component, corresponding 3rd LED lighting of the first color component of control；6th control submodule, for controlling
The corresponding 4th diode shut-off of 4th color component.
Further, the first diode is the diode for launching feux rouges, and the second diode is the diode for launching green glow, the
Three diodes are the diode for launching blue light, and the 4th diode is the diode for launching white light.
Another aspect according to embodiments of the present invention, additionally provides a kind of control system of display screen, including：Communication dress
Put, the first color data for obtaining each pixel in display screen, wherein, the first color data includes：First color point
The color value of the color value of amount, the color value of the second color component and the 3rd color component；Processor, is connected with communicator,
For the first color data according to each pixel, the second color data of each pixel is obtained, wherein, the second number of colours
According to including：The color value of the first color component, the color value of the second color component, the color value of the 3rd color component and the 4th face
The color value of colouring component；Display screen, is connected with processor, for the second color data according to each pixel, controls each
Corresponding LED lighting in pixel.
Another aspect according to embodiments of the present invention, additionally provides a kind of display screen, including：Display module, including：With
The corresponding first passage display circuit of one color component second channel display circuit corresponding with the second color component and the 3rd
The corresponding third channel display circuit of color component and fourth lane display circuit corresponding with the 4th color component；Drive mould
Block, is connected with display module, for controlling corresponding passage display circuit conducting according to the second color data, wherein, the second face
Chromatic number evidence includes：The color value of the first color component, the color value of the second color component, the color value of the 3rd color component and
The color value of four color components.
Further, first passage display circuit includes：Multiple first diodes, wherein, each pixel of display screen
One the first diode is set；Second channel display circuit includes：Multiple second diodes, wherein, each pixel of display screen
Point sets second diode；Third channel display circuit includes：Multiple 3rd diodes, wherein, each picture of display screen
Vegetarian refreshments sets the 3rd diode；Fourth lane display circuit includes：Multiple 4th diodes, wherein, display screen each
Pixel sets the 4th diode.
Further, the first diode is the diode for launching feux rouges, and the second diode is the diode for launching green glow, the
Three diodes are the diode for launching blue light, and the 4th diode is the diode for launching white light.
In embodiments of the present invention, the first color data of each pixel in display screen is obtained, according to each pixel
The first color data, obtain the second color data of each pixel, the second color data according to each pixel, control
Corresponding LED lighting in each pixel.It is easily noted that, the first color data includes three color components, and the
Second colors data include four components, by introducing the 4th color component so that when different colours are shown, can control
Different LED lightings, lights, without the corresponding diode of all colours component so as to solve existing display screen part
Or during whole face display gray color, there is unnecessary energy loss, cause the technical problem of energy waste.Therefore, by this hair
The scheme that bright above-described embodiment is provided, reaches the effect for saving electric energy.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this hair
Bright schematic description and description does not constitute inappropriate limitation of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is a kind of schematic diagram of the LED display control system according to prior art；
Fig. 2 is a kind of flow chart of the control method of display screen according to embodiments of the present invention；
Fig. 3 is the timing diagram of the control method of a kind of optional display screen according to embodiments of the present invention；
Fig. 4 is the truth table of the control method of a kind of optional display screen according to embodiments of the present invention；
Fig. 5 is a kind of schematic diagram of the control device of display screen according to embodiments of the present invention；
Fig. 6 is a kind of schematic diagram of the control system of display screen according to embodiments of the present invention；And
Fig. 7 is a kind of schematic diagram of display screen according to embodiments of the present invention.
Specific embodiment
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, is clearly and completely described to the technical scheme in the embodiment of the present invention, it is clear that described embodiment is only
The embodiment of a part of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, should all belong to the model of present invention protection
Enclose.
It should be noted that term " first ", " in description and claims of this specification and above-mentioned accompanying drawing
Two " it is etc. for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so using
Data can exchange in the appropriate case, so as to embodiments of the invention described herein can with except illustrating herein or
Order beyond those of description is implemented.Additionally, term " comprising " and " having " and their any deformation, it is intended that cover
Lid is non-exclusive to be included, for example, the process, method, system, product or the equipment that contain series of steps or unit are not necessarily limited to
Those steps or unit clearly listed, but may include not list clearly or for these processes, method, product
Or other intrinsic steps of equipment or unit.
Embodiment 1
According to embodiments of the present invention, there is provided a kind of embodiment of the control method of display screen, it is necessary to explanation, attached
The step of flow of figure is illustrated can perform in the such as one group computer system of computer executable instructions, though also,
So logical order is shown in flow charts, but in some cases, can be with shown different from order execution herein
Or the step of description.
Fig. 2 is a kind of flow chart of the control method of display screen according to embodiments of the present invention, as shown in Fig. 2 the method
Comprise the following steps：
Step S202, obtains the first color data of each pixel in display screen, wherein, the first color data includes：
The color value of the color value of the first color component, the color value of the second color component and the 3rd color component.
Specifically, the first above-mentioned color component, the second color component and the 3rd color component can be the principle of three primary colours
In three kinds of color components, i.e., red (R), green (G) and blue (B) three color components, i.e. color data can be (R, G, B), example
Such as, in 256 grades of colors, the color value of each color component can be any one numeral in 0-255.
Step S204, the first color data according to each pixel obtains the second color data of each pixel, its
In, the second color data includes：The color value of the first color component, the color value of the second color component, the 3rd color component
The color value of color value and the 4th color component.
Specifically, the 4th above-mentioned color component can be white (W) color component, the second color data can for (R, G,
B, W), for example, in 256 grades of colors, the color value of each color component can be any one numeral in 0-255.
Step S206, the second color data according to each pixel, corresponding diode is sent out in controlling each pixel
Light.
In a kind of optional scheme, when needing to show video data by display screen, programmable logic device
Part FPGA (Field-Programmable Gate Array's writes a Chinese character in simplified form) can obtain the three-component color number of each pixel
According to, that is, first color data (R, G, B) of each pixel is obtained, then according to the color value of each color component, determine W face
The color value of colouring component, obtains four component color data of each pixel, that is, obtain the second color data of each pixel
(R, G, B, W), then the color value of each color component according to four component color data, is controlled using pulsewidth modulation (PWM)
The lighting time of corresponding diode, i.e. dutycycle carrys out the average current value of controlled output, so as to realize the color of different gray scales,
The dutycycle that the red diode of each pixel turns on can be controlled according to R color components, it is every according to the control of G color components
The dutycycle of the green diode conducting of individual pixel, the blue diode for controlling each pixel according to B color components is turned on
Dutycycle, the dutycycle that the white diode of each pixel turns on is controlled according to W color components so that each pixel
Four diodes are presented corresponding color, so that the display of each pixel needs the color of display.For example, working as some pixel
When needing display gray color, the color value of first three color component in four component color data of the pixel can be set to
0, only by controlling the electric current of white diode so that the gray color that pixel display needs.
Herein it should be noted that PLD (FPGA) has high integration, high speed, online programmable etc.
Feature.FPGA is realized based on concurrent operation with hardware description language.When user passes through schematic diagram or hardware description language
(HDL) after describing a logic circuit, FPGA exploitations software can automatic calculation logic circuit all possible result, and
Result is write RAM in advance, so, being often input into signal carries out logical operation and be equal to one address of input being tabled look-up,
The corresponding content in address is found out, is then exported.
By the above embodiment of the present invention, the first color data of each pixel in display screen is obtained, according to each picture
First color data of vegetarian refreshments, obtains the second color data of each pixel, the second color data according to each pixel,
Control corresponding LED lighting in each pixel.It is easily noted that, the first color data includes three color components,
And the second color data includes four components, by introducing the 4th color component so that when different colours are shown, can be with
The different LED lighting of control, lights, without the corresponding diode of all colours component so as to solve existing display screen
During local or whole face display gray color, there is unnecessary energy loss, cause the technical problem of energy waste.Therefore, pass through
The scheme that the above embodiment of the present invention is provided, reaches the effect for saving electric energy.
Optionally, in the above embodiment of the present invention, step S204, the first color data according to each pixel is obtained
The second color data to each pixel includes：
Judge color value, the color value of the second color component and the 3rd color point of the first color component of each pixel
Whether the color value of amount is equal.
If the color value of the first color component of each pixel, the color value of the second color component and the 3rd color point
The color value of amount is equal, then using the color value of any one color component as the 4th color component color value, and by
The color value of the color value of one color component, the color value of the second color component and the 3rd color component is set to 0.
If the color value of the first color component of each pixel, the color value of the second color component and the 3rd color point
The color value of amount is unequal, then the color value for obtaining the 4th color component is 0.
Herein it should be noted that the RGB color value of gray color always identical, for example, in 256 grades of colors, it is pure white
(R, G, B) gray value is (255,255,255)；Grey (R, G, B) gray value is (128,128,128) etc..
In a kind of optional scheme, the three-component color data of each pixel are being got, that is, obtaining each pixel
After first color data (R, G, B) of point, the color value of each color component can be compared, judge three colors point
Whether the color value of amount is equal, if the color value of three color components is all equal, i.e. R=G=B, it is determined that need display
Gray color, therefore, it can using identical color value as W color components color value, and simultaneously by other three face of component
Colour is set to color value that 0, the i.e. color value of R color components are 0, G color components for 0, and B color components color value
It is 0.If the color value of three color components is not all equal, it is determined that need display colored, therefore, it can W color components
Color value be set to 0, the color value of other color components is constant.
Optionally, in the above embodiment of the present invention, if color value, second of the first color component of each pixel
The color value of the color value of color component and the 3rd color component is equal, then step S206, according to the second of each pixel
Color data, corresponding lumination of light emitting diode includes in controlling each pixel：
Control corresponding first diode of the first color component, corresponding second diode of the second color component and the 3rd face
The corresponding 3rd diode shut-off of colouring component.
According to the color value of the 4th color component, corresponding 4th LED lighting of the 4th color component of control.
Optionally, in the above embodiment of the present invention, the first above-mentioned diode can be the diode of transmitting feux rouges, on
The second diode stated can be the diode of transmitting green glow, and the 3rd above-mentioned diode can be the diode of transmitting blue light,
The 4th above-mentioned diode can be the diode of transmitting white light.
Specifically, the diode of above-mentioned transmitting white light can be a kind of device being made up of gallium nitride can send blueness
Light, last layer phosphor is applied in the inside of this device, and phosphor can produce white light after by blue light irradiation, so as to realize
One white light emitter.Blue photons have energy higher, it is sufficient to trigger phosphor transmitting white light.
In a kind of optional scheme, four component color data of each pixel are being obtained, that is, obtaining each pixel
The second color data (R, G, B, W) after, if the color value of three color components is all equal, i.e. R=G=B, then FPGA
Red diode, green diode and the blue diode of each pixel can be controlled to turn off, and according to the face of W color components
Colour control white diode lights so that the white diode of each pixel is presented corresponding gray color, so that each picture
Vegetarian refreshments display needs the gray color of display.
Optionally, in the above embodiment of the present invention, if color value, second of the first color component of each pixel
The color value of the color value of color component and the 3rd color component is unequal, then step S206, according to the second of each pixel
Color data, corresponding lumination of light emitting diode includes in controlling each pixel：
According to the color value of the first color component, corresponding first LED lighting of the first color component of control.
According to the color value of the second color component, corresponding second LED lighting of the second color component of control.
According to the color value of the 3rd color component, corresponding 3rd LED lighting of the first color component of control.
Corresponding 4th diode of the 4th color component is controlled to turn off.
Optionally, in the above embodiment of the present invention, the first above-mentioned diode can be the diode of transmitting feux rouges, on
The second diode stated can be the diode of transmitting green glow, and the 3rd above-mentioned diode can be the diode of transmitting blue light,
The 4th above-mentioned diode can be the diode of transmitting white light.
In a kind of optional scheme, four component color data of each pixel are being obtained, that is, obtaining each pixel
The second color data (R, G, B, W) after, if the color value of three color components is not all equal, FPGA can be controlled often
The white diode shut-off of individual pixel, and control red diode to light according to the color value of R color components, according to G colors
The color value control green diode of component lights, and the color value control blue diode according to B color components lights so that every
Three diodes of individual pixel are presented corresponding colored, so that the display of each pixel needs the colour of display.
Below, by taking 1024 grades of gray scales as an example, a kind of preferred embodiment of the invention is described in detail, timing diagram is as schemed
Shown in 3, truth table is as shown in Figure 4.
If R=G=B=0, it is determined that W=0, and R=G=B=0；If R=G=B=1, it is determined that W=1, and R
=G=B=0；If R=G=B=2, it is determined that W=2, and R=G=B=0；If ... R=G=B=1023, it is determined that
W=1023, and R=G=B=0.
As shown in figure 3, OE is the key signal for controlling gray value, SDI is the data of RGBW.When gray color, keep
These key signals of CLK, SDI, LE, OE are constant, and SDI is changed to low level by high level.By taking a constant current chip as an example, it is assumed that
In one frame signal, the gradation data of the RGB for getting is：
R(10,20,30,40,50,60,70,80,90,100,110,120,130,140,150,160)；
G(11,21,31,41,51,60,71,81,91,100,111,121,131,141,151,161)；
B(12,22,32,42,52,60,72,82,92,100,112,122,132,142,152,162)。
FPGA is changed into RGBW data after treatment：
R(10,20,30,40,50,0,70,80,90,0,110,120,130,140,150,160)；
G(11,21,31,41,51,0,71,81,91,0,111,121,131,141,151,161)；
B(12,22,32,42,52,0,72,82,92,0,112,122,132,142,152,162)；
W(0,0,0,0,0,60,0,0,0,100,0,0,0,0,0,0)。
Herein it should be noted that the supply voltage for assuming LED display RGB is 5V；Show the average of all gray colors
Electric current IR1, IG1, IB1 are respectively 6mA, 5mA, 4mA；One pixel of display screen is 100,000；Average work ten hours daily,
So, the electric energy of consumption is required for average display gray color：P1=N*VCC* (IR1+IG1+IB1)=100000*5* (6+5+
4)/1000=75000 (watt), if realizing gray color with W to replace original RGB simultaneously luminous under square one, now
Gray color average current Iw is 5mA, and now, the electric energy of consumption is required for average display gray color：Pw=N*VCC*Iw=
100000*5*5/1000=25000 (watt), P1/Pw=75000/25000=3, i.e. realize gray scale using RGB under long-run average
The energy consumption of color is 3 times of the energy consumption that gray color is realized using W.
By such scheme, during white increased into pixels of display screen, former RGB is set to be turned into RGBW.When RGB color value
When equal, RGB is no longer lighted, and the power-saving technology of display screen is realized by lighting W.It is this to be realized by changing FPGA programs
The method that gray color is switched to W gray values by RGB gray values, finally gives the effect of energy-conservation.
Embodiment 2
According to embodiments of the present invention, there is provided a kind of embodiment of the control device of display screen.
Fig. 5 is a kind of schematic diagram of the control device of display screen according to embodiments of the present invention, as shown in figure 5, the device
Including：
Acquisition module 51, the first color data for obtaining each pixel in display screen, wherein, the first color data
Including：The color value of the color value of the first color component, the color value of the second color component and the 3rd color component.
Specifically, the first above-mentioned color component, the second color component and the 3rd color component can be the principle of three primary colours
In three kinds of color components, i.e., red (R), green (G) and blue (B) three color components, i.e. color data can be (R, G, B), example
Such as, in 256 grades of colors, the color value of each color component can be any one numeral in 0-255.
Processing module 53, for the first color data according to each pixel, obtains the second color of each pixel
Data, wherein, the second color data includes：The color value of the first color component, the color value of the second color component, the 3rd color
The color value of the color value of component and the 4th color component.
Specifically, the 4th above-mentioned color component can be white (W) color component, the second color data can for (R, G,
B, W), for example, in 256 grades of colors, the color value of each color component can be any one numeral in 0-255.
Control module 55, for the second color data according to each pixel, controls corresponding two in each pixel
Pole tube light-emitting.
In a kind of optional scheme, when needing to show video data by display screen, FPGA can be obtained
The three-component color data of each pixel, that is, obtain first color data (R, G, B) of each pixel, then according to each
The color value of color component, determines the color value of W color components, obtains four component color data of each pixel, that is, obtain
Second color data (R, G, B, W) of each pixel, the then color of each color component according to four component color data
Value, controls the lighting time of corresponding diode, i.e. dutycycle to carry out the average current of controlled output using pulsewidth modulation (PWM)
Value, so as to realize the color of different gray scales, you can turned on the red diode that each pixel is controlled according to R color components
Dutycycle, the dutycycle that the green diode of each pixel turns on is controlled according to G color components, is controlled according to B color components
The dutycycle of the conducting of the blue diode of each pixel, the white diode of each pixel is controlled according to W color components
The dutycycle of conducting so that four diodes of each pixel are presented corresponding color, so that the display of each pixel needs
The color of display.For example, when some pixel needs display gray color, can be by four component color data of the pixel
In the color value of first three color component be set to 0, only by controlling the electric current of white diode so that pixel display is needed
The gray color wanted.
Herein it should be noted that PLD (FPGA) has high integration, high speed, online programmable etc.
Feature.FPGA is realized based on concurrent operation with hardware description language.When user passes through schematic diagram or hardware description language
(HDL) after describing a logic circuit, FPGA exploitations software can automatic calculation logic circuit all possible result, and
Result is write RAM in advance, so, being often input into signal carries out logical operation and be equal to one address of input being tabled look-up,
The corresponding content in address is found out, is then exported.
By the above embodiment of the present invention, the first color data of each pixel in display screen is obtained, according to each picture
First color data of vegetarian refreshments, obtains the second color data of each pixel, the second color data according to each pixel,
Control corresponding LED lighting in each pixel.It is easily noted that, the first color data includes three color components,
And the second color data includes four components, by introducing the 4th color component so that when different colours are shown, can be with
The different LED lighting of control, lights, without the corresponding diode of all colours component so as to solve existing display screen
During local or whole face display gray color, there is unnecessary energy loss, cause the technical problem of energy waste.Therefore, pass through
The scheme that the above embodiment of the present invention is provided, reaches the effect for saving electric energy.
Optionally, in the above embodiment of the present invention, processing module includes：
Judging submodule, the color value of the first color component for judging each pixel, the face of the second color component
Whether the color value of colour and the 3rd color component is equal.
First treatment submodule, if color value, the second color component for the first color component of each pixel
Color value and the 3rd color component color value it is equal, then using the color value of any one color component as the 4th color
The color value of component, and by the face of the color value of the first color component, the color value of the second color component and the 3rd color component
Colour is set to 0.
Second processing submodule, if color value, the second color component for the first color component of each pixel
Color value and the 3rd color component color value it is unequal, then obtain the 4th color component color value be 0.
Herein it should be noted that the RGB color value of gray color always identical, for example, in 256 grades of colors, it is pure white
(R, G, B) gray value is (255,255,255)；Grey (R, G, B) gray value is (128,128,128) etc..
In a kind of optional scheme, the three-component color data of each pixel are being got, that is, obtaining each pixel
After first color data (R, G, B) of point, the color value of each color component can be compared, judge three colors point
Whether the color value of amount is equal, if the color value of three color components is all equal, i.e. R=G=B, it is determined that need display
Gray color, therefore, it can using identical color value as W color components color value, and simultaneously by other three face of component
Colour is set to color value that 0, the i.e. color value of R color components are 0, G color components for 0, and B color components color value
It is 0.If the color value of three color components is not all equal, it is determined that need display colored, therefore, it can W color components
Color value be set to 0, the color value of other color components is constant.
Optionally, in the above embodiment of the present invention, if color value, second of the first color component of each pixel
The color value of the color value of color component and the 3rd color component is equal, then control module includes：
First control submodule, for controlling corresponding first diode of the first color component, the second color component correspondence
The second diode and the shut-off of the 3rd color component corresponding 3rd diode.
Second control submodule, for the color value according to the 4th color component, the 4th color component of control corresponding the
Four LED lightings.
Optionally, in the above embodiment of the present invention, the first above-mentioned diode can be the diode of transmitting feux rouges, on
The second diode stated can be the diode of transmitting green glow, and the 3rd above-mentioned diode can be the diode of transmitting blue light,
The 4th above-mentioned diode can be the diode of transmitting white light.
Specifically, the diode of above-mentioned transmitting white light can be a kind of device being made up of gallium nitride can send blueness
Light, last layer phosphor is applied in the inside of this device, and phosphor can produce white light after by blue light irradiation, so as to realize
One white light emitter.Blue photons have energy higher, it is sufficient to trigger phosphor transmitting white light.
In a kind of optional scheme, four component color data of each pixel are being obtained, that is, obtaining each pixel
The second color data (R, G, B, W) after, if the color value of three color components is all equal, i.e. R=G=B, then FPGA
Red diode, green diode and the blue diode of each pixel can be controlled to turn off, and according to the face of W color components
Colour control white diode lights so that the white diode of each pixel is presented corresponding gray color, so that each picture
Vegetarian refreshments display needs the gray color of display.
Optionally, in the above embodiment of the present invention, if color value, second of the first color component of each pixel
The color value of the color value of color component and the 3rd color component is unequal, then control module includes：
3rd control submodule, for the color value according to the first color component, the first color component of control corresponding the
One LED lighting.
4th control submodule, for the color value according to the second color component, the second color component of control corresponding the
Two LED lightings.
5th control submodule, for the color value according to the 3rd color component, the first color component of control corresponding the
Three LED lightings.
6th control submodule, for controlling the corresponding 4th diode shut-off of the 4th color component.
Optionally, in the above embodiment of the present invention, the first above-mentioned diode can be the diode of transmitting feux rouges, on
The second diode stated can be the diode of transmitting green glow, and the 3rd above-mentioned diode can be the diode of transmitting blue light,
The 4th above-mentioned diode can be the diode of transmitting white light.
In a kind of optional scheme, four component color data of each pixel are being obtained, that is, obtaining each pixel
The second color data (R, G, B, W) after, if the color value of three color components is not all equal, FPGA can be controlled often
The white diode shut-off of individual pixel, and control red diode to light according to the color value of R color components, according to G colors
The color value control green diode of component lights, and the color value control blue diode according to B color components lights so that every
Three diodes of individual pixel are presented corresponding colored, so that the display of each pixel needs the colour of display.
Embodiment 3
According to embodiments of the present invention, there is provided a kind of embodiment of the control system of display screen.
Fig. 6 is a kind of schematic diagram of the control system of display screen according to embodiments of the present invention, as shown in fig. 6, the system
Including：
Communicator 61, the first color data for obtaining each pixel in display screen, wherein, the first color data
Including：The color value of the color value of the first color component, the color value of the second color component and the 3rd color component.
Specifically, the first above-mentioned color component, the second color component and the 3rd color component can be the principle of three primary colours
In three kinds of color components, i.e., red (R), green (G) and blue (B) three color components, i.e. color data can be (R, G, B), example
Such as, in 256 grades of colors, the color value of each color component can be any one numeral in 0-255.Above-mentioned communication
Device can be Ethernet reception device, can receive the video data that transmission system sends by Ethernet.
Processor 63, is connected with communicator, for the first color data according to each pixel, obtains each pixel
Second color data of point, wherein, the second color data includes：The face of the color value of the first color component, the second color component
The color value of colour, the color value of the 3rd color component and the 4th color component.
Specifically, the 4th above-mentioned color component can be white (W) color component, the second color data can for (R, G,
B, W), for example, in 256 grades of colors, the color value of each color component can be any one numeral in 0-255.On
The processor stated can be FPGA.
Herein it should be noted that PLD (FPGA) has high integration, high speed, online programmable etc.
Feature.FPGA is realized based on concurrent operation with hardware description language.When user passes through schematic diagram or hardware description language
(HDL) after describing a logic circuit, FPGA exploitations software can automatic calculation logic circuit all possible result, and
Result is write RAM in advance, so, being often input into signal carries out logical operation and be equal to one address of input being tabled look-up,
The corresponding content in address is found out, is then exported.
Display screen 65, is connected with processor, for the second color data according to each pixel, controls each pixel
In corresponding LED lighting.
In a kind of optional scheme, when needing to show video data by display screen, (scene can compile FPGA
Volume gate array, Field-Programmable Gate Array's writes a Chinese character in simplified form) the three-component color number of each pixel can be obtained
According to, that is, first color data (R, G, B) of each pixel is obtained, then according to the color value of each color component, determine W face
The color value of colouring component, obtains four component color data of each pixel, that is, obtain the second color data of each pixel
(R, G, B, W), then the color value of each color component according to four component color data, is controlled using pulsewidth modulation (PWM)
The lighting time of corresponding diode, i.e. dutycycle carrys out the average current value of controlled output, so as to realize the color of different gray scales,
The dutycycle that the red diode of each pixel turns on can be controlled according to R color components, it is every according to the control of G color components
The dutycycle of the green diode conducting of individual pixel, the blue diode for controlling each pixel according to B color components is turned on
Dutycycle, the dutycycle that the white diode of each pixel turns on is controlled according to W color components so that each pixel
Four diodes are presented corresponding color, so that the display of each pixel needs the color of display.For example, working as some pixel
When needing display gray color, the color value of first three color component in four component color data of the pixel can be set to
0, only by controlling the electric current of white diode so that the gray color that pixel display needs.
By the above embodiment of the present invention, the first color data of each pixel in display screen is obtained, according to each picture
First color data of vegetarian refreshments, obtains the second color data of each pixel, the second color data according to each pixel,
Control corresponding LED lighting in each pixel.It is easily noted that, the first color data includes three color components,
And the second color data includes four components, by introducing the 4th color component so that when different colours are shown, can be with
The different LED lighting of control, lights, without the corresponding diode of all colours component so as to solve existing display screen
During local or whole face display gray color, there is unnecessary energy loss, cause the technical problem of energy waste.Therefore, pass through
The scheme that the above embodiment of the present invention is provided, reaches the effect for saving electric energy.
Embodiment 4
According to embodiments of the present invention, there is provided a kind of embodiment of display screen.
Fig. 7 is a kind of schematic diagram of display screen according to embodiments of the present invention, as shown in fig. 7, the display screen includes：
Display module 71, including：First passage display circuit 711 corresponding with the first color component and the second color point
Measure corresponding second channel display circuit 713 third channel display circuit 715 corresponding with the 3rd color component and with the 4th face
The corresponding fourth lane display circuit 717 of colouring component.
Specifically, the first above-mentioned color component, the second color component and the 3rd color component can be the principle of three primary colours
In three kinds of color components, i.e., red (R), green (G) and blue (B) three color components, i.e. color data can be (R, G, B), on
The 4th color component stated can be white (W) color component, and the second color data can be (R, G, B, W), for example, at 256 grades
In color, the color value of each color component can be any one numeral in 0-255.
Drive module 73, is connected with display module, for controlling corresponding passage display circuit according to the second color data
Conducting, wherein, the second color data includes：The color value of the first color component, the color value of the second color component, the 3rd color
The color value of the color value of component and the 4th color component.
Herein it should be noted that each pixel increases white (W) light emitting diode, and it is equipped with corresponding constant current driving core
Piece and drive circuit, power supply circuit is added in RGB identical modes --- and triple channel display circuit that will be original becomes four-way
Road display circuit.
In a kind of optional scheme, when needing to show video data by display screen, (scene can compile FPGA
Volume gate array, Field-Programmable Gate Array's writes a Chinese character in simplified form) the three-component color number of each pixel can be obtained
According to, that is, first color data (R, G, B) of each pixel is obtained, then according to the color value of each color component, determine W face
The color value of colouring component, obtains four component color data of each pixel, that is, obtain the second color data of each pixel
(R, G, B, W), then the color value of each color component according to four component color data, is controlled using pulsewidth modulation (PWM)
The lighting time of corresponding diode, i.e. dutycycle carrys out the average current value of controlled output, so as to realize the color of different gray scales,
The dutycycle that the red diode of each pixel turns on can be controlled according to R color components, it is every according to the control of G color components
The dutycycle of the green diode conducting of individual pixel, the blue diode for controlling each pixel according to B color components is turned on
Dutycycle, the dutycycle that the white diode of each pixel turns on is controlled according to W color components so that each pixel
Four diodes are presented corresponding color, so that the display of each pixel needs the color of display.For example, working as some pixel
When needing display gray color, the color value of first three color component in four component color data of the pixel can be set to
0, only by controlling the electric current of white diode so that the gray color that pixel display needs.
By the above embodiment of the present invention, the first color data of each pixel in display screen is obtained, according to each picture
First color data of vegetarian refreshments, obtains the second color data of each pixel, the second color data according to each pixel,
Control corresponding LED lighting in each pixel.It is easily noted that, the first color data includes three color components,
And the second color data includes four components, by introducing the 4th color component so that when different colours are shown, can be with
The different LED lighting of control, lights, without the corresponding diode of all colours component so as to solve existing display screen
During local or whole face display gray color, there is unnecessary energy loss, cause the technical problem of energy waste.Therefore, pass through
The scheme that the above embodiment of the present invention is provided, reaches the effect for saving electric energy.
Optionally, in the above embodiment of the present invention,
First passage display circuit includes：Multiple first diodes, wherein, each pixel of display screen sets one the
One diode.
Second channel display circuit includes：Multiple second diodes, wherein, each pixel of display screen sets one the
Two diodes.
Third channel display circuit includes：Multiple 3rd diodes, wherein, each pixel of display screen sets one the
Three diodes.
Fourth lane display circuit includes：Multiple 4th diodes, wherein, each pixel of display screen sets one the
Four diodes.
Optionally, in the above embodiment of the present invention, the first diode is the diode for launching feux rouges, and the second diode is
Launch the diode of green glow, the 3rd diode is the diode for launching blue light, and the 4th diode is the diode for launching white light.
Specifically, the diode of above-mentioned transmitting white light can be a kind of device being made up of gallium nitride can send blueness
Light, last layer phosphor is applied in the inside of this device, and phosphor can produce white light after by blue light irradiation, so as to realize
One white light emitter.Blue photons have energy higher, it is sufficient to trigger phosphor transmitting white light.
In a kind of optional scheme, the three-component color data of each pixel are being got, that is, obtaining each pixel
After first color data (R, G, B) of point, the color value of each color component can be compared, judge three colors point
Whether the color value of amount is equal, if the color value of three color components is all equal, i.e. R=G=B, it is determined that need display
Gray color, therefore, it can using identical color value as W color components color value, and simultaneously by other three face of component
Colour is set to color value that 0, the i.e. color value of R color components are 0, G color components for 0, and B color components color value
It is 0.If the color value of three color components is not all equal, it is determined that need display colored, therefore, it can W color components
Color value be set to 0, the color value of other color components is constant.Four component color data of each pixel are being obtained, i.e.,
After obtaining second color data (R, G, B, W) of each pixel, if the color value of three color components is all equal, i.e.,
R=G=B, then FPGA can control red diode, green diode and the blue diode of each pixel to turn off, and root
Lighted according to the color value control white diode of W color components so that the white diode of each pixel is presented corresponding ash
Degree color, so that the display of each pixel needs the gray color of display.If the color value of three color components is not all equal,
FPGA can control the white diode of each pixel to turn off, and control red diode according to the color value of R color components
Luminous, the color value control green diode according to G color components lights, the color value control blue two according to B color components
Pole tube light-emitting so that three diodes of each pixel are presented corresponding colored, so that each pixel shows needs display
Colour.
The embodiments of the present invention are for illustration only, and the quality of embodiment is not represented.
In the above embodiment of the present invention, the description to each embodiment all emphasizes particularly on different fields, and does not have in certain embodiment
The part of detailed description, may refer to the associated description of other embodiment.
In several embodiments provided herein, it should be understood that disclosed technology contents, can be by other
Mode is realized.Wherein, device embodiment described above is only schematical, such as division of described unit, Ke Yiwei
A kind of division of logic function, can there is other dividing mode when actually realizing, such as multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored, or does not perform.Another, shown or discussed is mutual
Between coupling or direct-coupling or communication connection can be the INDIRECT COUPLING or communication link of unit or module by some interfaces
Connect, can be electrical or other forms.
The unit that is illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part for showing can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On unit.Some or all of unit therein can be according to the actual needs selected to realize the purpose of this embodiment scheme.
In addition, during each functional unit in each embodiment of the invention can be integrated in a processing unit, it is also possible to
It is that unit is individually physically present, it is also possible to which two or more units are integrated in a unit.Above-mentioned integrated list
Unit can both be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.
If the integrated unit is to realize in the form of SFU software functional unit and as independent production marketing or use
When, can store in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part for being contributed to prior art in other words or all or part of the technical scheme can be in the form of software products
Embody, the computer software product is stored in a storage medium, including some instructions are used to so that a computer
Equipment (can be personal computer, server or network equipment etc.) perform each embodiment methods described of the invention whole or
Part steps.And foregoing storage medium includes：USB flash disk, read-only storage (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic disc or CD etc. are various can be with store program codes
Medium.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (14)
1. a kind of control method of display screen, it is characterised in that including：
The first color data of each pixel in display screen is obtained, wherein, first color data includes：First color point
The color value of the color value of amount, the color value of the second color component and the 3rd color component；
The first color data according to each pixel, obtains the second color data of each pixel, wherein, institute
Stating the second color data includes：The color value of first color component, the color value of second color component, the described 3rd
The color value of the color value of color component and the 4th color component；
The second color data according to each pixel, controls corresponding LED lighting in each described pixel.
2. method according to claim 1, it is characterised in that the first color data according to each pixel, obtains
The second color data to pixel each described includes：
Judge color value, the color value of second color component and the institute of first color component of each pixel
Whether the color value for stating the 3rd color component is equal；
If the color value of first color component of each pixel, the color value of second color component and institute
The color value for stating the 3rd color component is equal, then using the color value of any one color component as the 4th color component
Color value, and by the color value of first color component, the color value of second color component and the 3rd color
The color value of component is set to 0；
If the color value of first color component of each pixel, the color value of second color component and institute
The color value for stating the 3rd color component is unequal, then the color value for obtaining the 4th color component is 0.
3. method according to claim 2, it is characterised in that if first color component of each pixel
Color value, the color value of second color component and the 3rd color component color value it is equal, then according to each
Second color data of the pixel, corresponding lumination of light emitting diode includes in controlling each described pixel：
Control corresponding first diode of first color component, corresponding second diode of second color component and institute
State the corresponding 3rd diode shut-off of the 3rd color component；
According to the color value of the 4th color component, corresponding 4th LED lighting of the 4th color component is controlled.
4. method according to claim 2, it is characterised in that if first color component of each pixel
Color value, the color value of second color component and the 3rd color component color value it is unequal, then according to each
Second color data of the pixel, corresponding lumination of light emitting diode includes in controlling each described pixel：
According to the color value of first color component, corresponding first LED lighting of first color component is controlled；
According to the color value of second color component, corresponding second LED lighting of second color component is controlled；
According to the color value of the 3rd color component, corresponding 3rd LED lighting of first color component is controlled；
Corresponding 4th diode of the 4th color component is controlled to turn off.
5. the method according to claim 3 or 4, it is characterised in that first diode is the diode for launching feux rouges,
Second diode is the diode for launching green glow, and the 3rd diode is the diode for launching blue light, the described 4th 2
Pole pipe is to launch the diode of white light.
6. a kind of control device of display screen, it is characterised in that including：
Acquisition module, the first color data for obtaining each pixel in display screen, wherein, the first color data bag
Include：The color value of the color value of the first color component, the color value of the second color component and the 3rd color component；
Processing module, for the first color data according to each pixel, obtains the second face of each pixel
Chromatic number evidence, wherein, second color data includes：The color value of first color component, second color component
The color value of color value, the color value of the 3rd color component and the 4th color component；
Control module, for the second color data according to each pixel, controls corresponding in each described pixel
LED lighting.
7. device according to claim 6, it is characterised in that the processing module includes：
Judging submodule, color value, second color of first color component for judging each pixel
Whether the color value of the color value of component and the 3rd color component is equal；
First treatment submodule, if for color value, described second of first color component of pixel each described
The color value of the color value of color component and the 3rd color component is equal, then by the color value of first color component
As the color value of the 4th color component, and by the color value of first color component, second color component
The color value of color value and the 3rd color component is set to 0；
Second processing submodule, if for color value, described second of first color component of pixel each described
The color value of the color value of color component and the 3rd color component is unequal, then the color value of the 4th color component is
0。
8. device according to claim 7, it is characterised in that if first color component of each pixel
Color value, the color value of second color component and the 3rd color component color value it is equal, then the control
Module includes：
First control submodule, for controlling corresponding first diode of first color component, second color component
Corresponding second diode and the corresponding 3rd diode shut-off of the 3rd color component；
Second control submodule, for the color value according to the 4th color component, controls the 4th color component correspondence
The 4th LED lighting.
9. device according to claim 7, it is characterised in that if first color component of each pixel
Color value, the color value of second color component and the 3rd color component color value it is unequal, then the control
Module includes：
3rd control submodule, for the color value according to first color component, controls the first color component correspondence
The first LED lighting；
4th control submodule, for the color value according to second color component, controls the second color component correspondence
The second LED lighting；
5th control submodule, for the color value according to the 3rd color component, controls the first color component correspondence
The 3rd LED lighting；
6th control submodule, for controlling corresponding 4th diode of the 4th color component to turn off.
10. device according to claim 8 or claim 9, it is characterised in that first diode is two poles for launching feux rouges
Pipe, second diode is the diode for launching green glow, and the 3rd diode is the diode for launching blue light, the described 4th
Diode is the diode for launching white light.
A kind of 11. control systems of display screen, it is characterised in that including：
Communicator, the first color data for obtaining each pixel in the display screen, wherein, first number of colours
According to including：The color value of the color value of the first color component, the color value of the second color component and the 3rd color component；
Processor, is connected with the communicator, for the first color data according to each pixel, obtains each institute
The second color data of pixel is stated, wherein, second color data includes：The color value of first color component, institute
State the color value of the color value, the color value of the 3rd color component and the 4th color component of the second color component；
Display screen, is connected with the processor, for the second color data according to each pixel, controls described in each
Corresponding LED lighting in pixel.
A kind of 12. display screens, it is characterised in that including：
Display module, including：First passage display circuit corresponding with the first color component corresponding with the second color component
Two passage display circuits third channel display circuit corresponding with the 3rd color component and with the 4th color component the corresponding 4th
Passage display circuit；
Drive module, is connected with the display module, for controlling corresponding passage display circuit to lead according to the second color data
It is logical, wherein, second color data includes：The color of the color value of first color component, second color component
The color value of value, the color value of the 3rd color component and the 4th color component.
13. display screens according to claim 12, it is characterised in that
The first passage display circuit includes：Multiple first diodes, wherein, each pixel of the display screen sets one
Individual first diode；
The second channel display circuit includes：Multiple second diodes, wherein, each described pixel of the display screen sets
Put second diode；
The third channel display circuit includes：Multiple 3rd diodes, wherein, each described pixel of the display screen sets
Put the 3rd diode；
The fourth lane display circuit includes：Multiple 4th diodes, wherein, each described pixel of the display screen sets
Put the 4th diode.
14. display screens according to claim 13, it is characterised in that first diode is two poles for launching feux rouges
Pipe, second diode is the diode for launching green glow, and the 3rd diode is the diode for launching blue light, the described 4th
Diode is the diode for launching white light.
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Application publication date: 20170531 |