CN201315148Y - Regional light emission control device of LED backlight sources for liquid crystal television - Google Patents
Regional light emission control device of LED backlight sources for liquid crystal television Download PDFInfo
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Abstract
The utility model relates to a regional light emission control device of an LED backlight source for a liquid crystal television. The regional light emission control device comprises an image segmentation circuit, a plurality of LED brightness control circuits, and a plurality of LED backlight plates, wherein the image segmentation circuit is used for segmenting images of the current frame into a plurality of adjacent regions according to the image positions on a display screen and respectively transmitting the gray information of pixels in each region to corresponding LED brightness control circuits; the LED brightness control circuits are used for receiving pixels corresponding to the regions to obtain the maximal gray value of the pixels and the number of pixel dots with the maximal gray value, and generating and outputting a driving waveform to an LED panel according to the maximal gray value and the number of the pixel dots with the maximal gray value; and the LED backlight plates are electrically connected with the LED brightness control circuits corresponding to the regions and arranged on the rear side of the corresponding regions of the display screen. The regional light emission control device of the LED backlight sources for the liquid crystal television has the advantages of better dynamic contrast and further lowered power consumption of the backlight sources.
Description
Technical field
The utility model relates to the LED brightness controlling device, more particularly, relates to a kind of LED-backlit source region emission control device that is used for LCD TV.
Background technology
LCDs is passive light-emitting display device, needs module ability operate as normal backlight.Most of LCDs adopt cold-cathode fluorescent (CCFL) module backlight, CCFL module backlight is generally the luminous of normal bright type, even adjusting brightness, it also is artificial utmost point adjusting at a slow speed, can not accomplish to regulate backlight illumination automatically, cause the poor-performing such as dynamic contrast, Overall Power Consumption of LCDs with picture material.At present, use the LCD TV of LCDs just obtaining increasing customer's approval, but the drawbacks limit of the module backlight of its CCFL the raising of its performance.It is good that light emitting diode (LED) module backlight has a color reducibility, and contrast height, brightness height, and advantage such as light emitting control speed is fast have begun to be used for the large scale liquid crystal TV in recent years.Generally speaking, though people also begin to adopt the luminosity in dynamic control LED-backlit source, all be to adopt the signal parameter that obtains present frame usually as the basis of controlling.Parameter increasing at the liquid crystal display screen dimensions and a two field picture differ greatly or image in certain regional change accelerate and other zones when not changing substantially, still can not adapt to the more and more higher requirement of people with the signal parameter of whole present frame as the basis of the dynamic control of LED-backlit source brightness to the brightness and contrast.
The utility model content
The technical problems to be solved in the utility model is, still can not adapt to the more and more higher defective that requires of people at the above-mentioned signal parameter with whole present frame of prior art as the basis of the dynamic control of LED-backlit source brightness, the LED-backlit source region emission control device that is used for LCD TV that a kind of dynamic contrast is better, the backlight power consumption is lower is provided the brightness and contrast.
The technical scheme that its technical problem that solves the utility model adopts is: construct a kind of LED-backlit source region emission control device for LCD TV, comprise for the image of present frame by its position on display screen be divided into a plurality of adjacent areas and with the half-tone information of each zone pixel be sent to respectively its corresponding LED intednsity circuit the image segmentation circuit, with the described zone that the marks off corresponding and reception pixel corresponding with described zone and obtain the maximum gradation value in these pixels and have the pixel number of described maximum gradation value and be transported to a plurality of LED intednsity circuits of described LED lamp plate and corresponding and be electrically connected and be arranged on a plurality of LED-backlit plates of the back in its corresponding zone on the display screen with LED intednsity circuit corresponding to described zone one by one with the described zone that marks off according to the drive waveforms that described maximum gradation value and pixel number with described maximum gradation value produce the LED lamp plate one by one.
In LED-backlit source region emission control device described in the utility model, also comprise be connected between described television video frequency signal treating apparatus and the described image segmentation circuit and with television video frequency signal be converted to the rgb format signal the first change-over circuit, have a plurality of inputs that are connected with the output of LED intednsity circuit respectively and will be reduced to by the pixel that described image segmentation circuit is assigned to each LED intednsity circuit the image combiner circuit of a complete frame and be connected between described image combiner circuit and the LCDs and the rgb format vision signal is converted to the second change-over circuit of the signal format that adapts to the TV display screen demonstration.
In LED-backlit source region emission control device described in the utility model, described rgb format signal comprises video data signal, data clock signal, data useful signal, field sync signal and line synchronizing signal; Described image segmentation circuit comprise the delay circuit that postpones described video data signal, with described data clock signal and data useful signal be the input pixel counter that calculates the current pixel column, with described field sync signal and data useful signal be input calculate linage-counter that current pixel is expert at and respectively with the output of described pixel counter and linage-counter as two input, with the same number of comparer in described zoning; Described comparer is distinguished output field synchronizing signal, data clock signal and is arrived the LED control circuit of this zone correspondence corresponding to the data useful signal of pixel in its corresponding region.
In LED-backlit source region emission control device described in the utility model, described LED intednsity circuit comprises and receives signal that described image segmentation circuit sends and by the maximum gradation value that wherein obtains pixel in the one's respective area with have the testing circuit of described maximum gradation value pixel quantity, be connected with described testing circuit and by the maximum gradation value of pixel in the described one's respective area and control circuit of duty ratio with described maximum gradation value pixel quantity decision output drive waveforms dutycycle, be connected with described testing circuit and by the maximum gradation value of pixel in the described one's respective area with have described maximum gradation value pixel quantity decision carries out grey level compensation to the data video signal through described delay circuit delays grey level compensation circuit and be connected and form the constant current source driving circuit of drive waveforms by the dutycycle of its decision with described control circuit of duty ratio.
In LED-backlit source region emission control device described in the utility model, the maximum gradation value of described present frame comprises red maximum gradation value, green maximum gradation value and blue maximum gradation value; The pixel count that has maximum gradation value in the described present frame comprises having red maximum gradation value pixel count, have green maximum gradation value pixel count and have blue maximum gradation value pixel count; Described decision circuitry judges describedly have red maximum gradation value pixel count, have green maximum gradation value pixel count and have the size of its corresponding preset value of blue maximum gradation value pixel count respectively.
In LED-backlit source region emission control device described in the utility model, described number of regions comprises more than or equal to 2 smaller or equal to 512 integer.
In LED-backlit source region emission control device described in the utility model, described number of regions shape comprises square or rectangle.
In LED-backlit source region emission control device described in the utility model, described first change-over circuit or second change-over circuit comprise special IC or field programmable logic device.
In LED-backlit source region emission control device described in the utility model, described LED intednsity circuit also comprises the correction data that is used for according to input, thereby the working current of regulating each LED makes the constant current source control circuit of its brightness unanimity.
In LED-backlit source region emission control device described in the utility model, described correction data comprises by measuring brightness and the brightness expectation value comparison data that obtain of each LED under maximum duty cycle signal drives.
Implement the LED-backlit source region emission control device that is used for LCD TV of the present utility model, has following beneficial effect: owing to use the image segmentation circuit that the pixel of every frame image signal is divided into a plurality of zones by its position on display screen, and carry out its backlight illumination at the pixel in these zones and regulate, so its dynamic contrast is better, also further reduced the power consumption of backlight.
Description of drawings
Fig. 1 is the schematic block circuit diagram that the utility model is used for the LED-backlit source region emission control device embodiment of LCD TV;
Fig. 2 is the schematic block circuit diagram of image segmentation circuit among the described embodiment;
Fig. 3 is the schematic block circuit diagram of a LED intednsity circuit among the described embodiment.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 1, be used for the LED-backlit source region emission control device embodiment of LCD TV, LED-backlit source region emission control device first change-over circuit 2, image segmentation circuit 3, LED brightness controller 4, LED lamp plate 5, image combiner circuit 7 and second change-over circuit 8 at the utility model.LCD TV movement 1 and liquid crystal display 10 exist as the part of televisor, for signal trend in the expressed intact present embodiment identifies out.
In the present embodiment, image segmentation circuit 3 is used for the image of present frame is divided into a plurality of adjacent areas and the half-tone information of each zone pixel is sent to its corresponding LED intednsity circuit 41... n LED intednsity circuit 4n respectively by its position on display screen; As shown in Figure 1, comprise in the LED brightness controller 4 a plurality of the and above-mentioned zone that is divided out one to one a LED intednsity circuit 41... n LED intednsity circuit 4n receive with the corresponding pixel grey scale information of above-mentioned zone respectively and obtain the maximum gradation value in these pixels (i.e. pixel in this LED intednsity circuit The corresponding area) and have the pixel number of this maximum gradation value and according to described maximum gradation value with have the drive waveforms that the pixel number of described maximum gradation value produces and be transported to LED-backlit plate 5; LED lamp plate 5 comprises a plurality of corresponding one by one with the described zone that marks off, a LED intednsity circuit 41... n LED intednsity circuit 4n corresponding with described zone is electrically connected and is arranged on a plurality of LED lamp plates at the rear in its corresponding zone on the display screen 10, i.e. a LED lamp plate 51... n LED lamp plate 5n.
In the present embodiment, also comprise first change-over circuit 2 that is connected between television video frequency signal treating apparatus (being the LCD TV movement) and the image segmentation circuit 3 and television video frequency signal is converted to the rgb format signal; It has a plurality of inputs that are connected with LED intednsity circuit 41... n LED intednsity circuit 4n output respectively and will be reduced to the image combiner circuit 7 of a complete frame by the pixel that described image segmentation circuit 3 is assigned to a LED intednsity circuit 41... n LED intednsity circuit 4n and be connected to image combiner circuit 7 and LCDs 10 between and the rgb format vision signal is converted to the second change-over circuit 8 of the signal format that adapts to TV display screen 10 demonstrations.
In the present embodiment, signal processing flow is as follows:
LCD TV movement 1 is the vision signal (as CVBS signal, SVIDEO signal, sdi signal etc.) of various common type, convert to consolidation form, with the LVDS vision signal that liquid crystal display 10 is complementary, this vision signal is sent into first change-over circuit 2.LCD TV movement 1 belongs to prior art, does not repeat them here.
First change-over circuit 2 is with the vision signal of LVDS form, convert the vision signal of rgb format to, in the present embodiment, the purpose of vision signal being carried out this conversion is to be convenient to obtaining of maximum gradation value subsequently and the number of pixels with maximum gradation value, and the vision signal of rgb format comprises video data signal RGB, data clock signal DCLK, data useful signal DEN, field sync signal VSYNC and line synchronizing signal HSYNC.LVDS changes the RGB circuit can adopt application-specific integrated circuit (as DS90CF386), also can realize with field programmable logic device FPGA.In the present embodiment, first change-over circuit is made of application-specific integrated circuit DS90CF386.The vision signal of rgb format is admitted to image segmentation circuit 3.
A two field picture is divided into n (n is the integer between 2 to 512) square to image segmentation circuit 3 or the rectangular area shows that its structure as shown in Figure 2.Image segmentation circuit 3 is made up of pixel counter 31, linage-counter 32, comparator circuit 34 and delay circuit 33; Wherein, comprise a plurality of comparers in the comparator circuit 34, i.e. the first comparer 341... n comparer 34n; Pixel counter 31 with DCLK as counting clock signal, with DEN as count enable signal, its count value is " row number " at current pixel place; Linage-counter 32 with DEN as counting clock signal, with VSYNC as the counting reset signal, its count value is " row number " at current pixel place.By the count value of above-mentioned pixel counter 31 and linage-counter 32, can know the row number of current pixel and row number, can obtain the collection of pixels in a certain zone again by comparator circuit 34.Suppose that the liquid crystal display physical resolution is 1366 x 768, be divided into the individual zone of 4 (n=4), when pixel counts value (row number) 1
-683, go count value (capable number) 1
-The pixel that belongs to zone 1 during 384 scopes; When the pixel counts value 684
-1366, go count value 1
-The pixel that belongs to zone 2 during 384 scopes, or the like, the rest may be inferred.Delay circuit 33 is used for compensating the signal transmission delay of above-mentioned pixel counter 31, linage-counter 32 and comparator circuit 34, and the view data RGBO signal that makes delay circuit output is synchronous with DEN1, DEN2, DEN3, DEN4 that first comparer 341, second comparer 342, the 3rd comparer 343, the 4th comparer 344 are exported.In the present embodiment, the signal of image segmentation circuit 3 outputs has: viewdata signal RGBO, field sync signal VSYNC, data clock signal DCLK, and first area data useful signal DEN1... n area data useful signal DENn, preceding 3 kinds of signals are that All Ranges is shared, and first area data useful signal DEN1... n area data useful signal DENn is relevant with the zone.
In above-mentioned image segmentation circuit 3, the signal of each zone output is sent into a LED intednsity circuit 41, two LED intednsity circuit 42... or the n LED intednsity circuit 4n corresponding with described zone, and the LED Drive and Control Circuit of All Ranges is all identical.Only the LED Drive and Control Circuit 41 with the 1st zone is that example illustrates its structure and the course of work, the structure of other LED Drive and Control Circuit and a LED Drive and Control Circuit 41 and course of work all similar.The one LED Drive and Control Circuit 41 frame principle figures comprise testing circuit 411, grey level compensation circuit 412, control circuit of duty ratio 413, constant current source control circuit 414 and constant current source driving circuit 415 as shown in Figure 3.
The rgb signal of 411 pairs of inputs of testing circuit sorts, calculate the red maximum gradation value Rm of maximum gradation value, green maximum gradation value Gm, the blue maximum gradation value Bm of the red, green, blue signal of current region pixel (being the collection of pixels in the first area), and number Rn, Gn, Bn with pixel of these maximum gradation value, these signals one tunnel are sent into grey level compensation circuit 412, and control circuit of duty ratio 413 is sent on another road.
Control circuit of duty ratio 413 receives these signals, sends duty cycle signals by certain rule and gives constant-current drive circuit 415, thereby regulate the luminosity of connected LED lamp plate.Control circuit of duty ratio 413 decides red dutycycle size according to above-mentioned Rm and Rn, and the luminous intensity of red dutycycle control red LED, in like manner, control circuit of duty ratio 413 decides green dutycycle size according to above-mentioned Gm and Gn, the luminous intensity of green dutycycle control green LED; Control circuit of duty ratio 413 decides blue dutycycle size according to above-mentioned Bm and Bn, the luminous intensity of blue dutycycle control blue led.In the present embodiment, be shown as example with 8bit, decision circuitry (not shown) in the control circuit of duty ratio 413 judges that at first whether Rn is greater than preset threshold (being preset value), this preset value is a positive integer 200 in the present embodiment, in this way, then red dutycycle is reduced to the Rm/255 of its normal value, backlight power consumption is reduced; As not being that then the red dutycycle of its output still is a normal value.Identical for the action that green dutycycle and blue dutycycle are taked with red dutycycle, in the present embodiment, judge Gn greater than preset threshold (positive integer 200) when decision circuitry, green dutycycle is reduced to the Gm/255 of normal value, and backlight power consumption is reduced; Judge Bn greater than preset threshold (for example 50 or 200 etc. integer) when decision circuitry, blue dutycycle is reduced to the Bm/255 of normal value, and backlight power consumption is reduced.By top description as can be known, as the pixel of some, its gray-scale value equals maximum gradation value, and maximum gradation value is not equal at 255 o'clock, by reducing the power consumption that duty recently reduces module backlight, has also just reduced the Overall Power Consumption of LCD TV.Particularly working as above-mentioned adjustment is not to go to adjust at entire image, and only be at a zone in the entire image, like this, just more pointed, especially when having only some regional image that bigger variation is arranged, the advantage of said apparatus is more outstanding.
In the present embodiment, when dutycycle is carried out above-mentioned adjusting,, also vision signal has been carried out grey level compensation in order further to improve contrast.
Grey level compensation circuit 412 (comprises above-mentioned Rm according to the signal that receives, Gm, Bm, Rn, Gn, Bn), carry out grey level compensation by the method opposite with above-mentioned control circuit of duty ratio 413, be specially: work as redness, when green or blue dutycycle reduces certain multiple, the redness of picture signal, green or blue gray-scale value also will amplify same multiple, for example, the green gray-scale value of supposing certain pixel is V0, the dutycycle that drives green LED is 1/m, if uncompensation, the gray scale that human eye is experienced is V0/m, be the 1/m of normal value V0, after the compensation, V0 has amplified m doubly, then the brightness experienced of human eye is (V0/m) * m=V0, be normal value V0, guaranteed the normal demonstration of gradation of image, final true reappearance image.
The region image signal of the grey level compensation circuit output in above-mentioned each LED Drive and Control Circuit is all sent into image combiner circuit 7, synthesize the picture signal of the complete rgb format of a frame, these signals convert the vision signal of LVDS form to through second change-over circuit 8, deliver to the TCON circuit of liquid crystal display.Second change-over circuit 8 can adopt application-specific integrated circuit (as DS90CF385), also can realize with field programmable logic device FPGA.In the present embodiment, second change-over circuit 8 adopts special IC DS90C385 to constitute.
In the present embodiment, include a large amount of LED in each LED lamp plate, owing to reasons such as manufacturing materials, manufacture crafts, the parameter of these LED is difficult to accomplish in full accord, and under same drive current, there is difference in the luminosity of these LED.For realizing luminance proportion, require these LED lamps under same duty cycle, to send the light of equal brightness.Therefore, must regulate the working current of each LED lamp,, thereby realize luminance proportion so that under same duty cycle, send the light of equal brightness.
At first, send maximum duty cycle signal and give constant-current drive circuit 415, make all LED lamps send high light; Secondly, the brightness of using brightness detection instrument to measure each LED lamp, brightness data is input to computing machine, by computing machine (this brightness expectation value is the minimum brightness of this class LED and certain brightness value between the mean flow rate) compared in this brightness and brightness expectation value, calculate the correction data of each LED; Then, this correction data is admitted to constant current source control circuit 414 and is saved, constant current source control circuit 414 is regulated the working current of each LED according to these data by constant current source driving circuit 415, thereby makes identically with LED lamp luminosity in its connection LED lamp plate, realizes luminance proportion.
The above embodiment has only expressed embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (10)
1, a kind of LED-backlit source region emission control device that is used for LCD TV, it is characterized in that, comprise that the image that is used for present frame is divided into a plurality of adjacent areas by its position on display screen and the half-tone information of each zone pixel is sent to the image segmentation circuit of its corresponding LED intednsity circuit respectively, and reception corresponding one by one with the described zone that marks off obtains the maximum gradation value in these pixels and has the pixel number of described maximum gradation value and be transported to a plurality of LED intednsity circuits of described LED lamp plate and corresponding one by one with the described zone that marks off and be electrically connected and be arranged on a plurality of LED-backlit plates of the back in its corresponding zone on the display screen with the corresponding LED intednsity circuit in described zone according to the drive waveforms that described maximum gradation value and pixel number with described maximum gradation value produce the LED lamp plate with the corresponding pixel in described zone.
2, LED-backlit source region emission control device according to claim 1, it is characterized in that, also comprise first change-over circuit that is connected between described television video frequency signal treating apparatus and the described image segmentation circuit and television video frequency signal is converted to the rgb format signal, have a plurality of input ends that are connected with LED intednsity circuit output respectively and will be reduced to the image combiner circuit of a complete frame by the pixel that described image segmentation circuit is assigned to each LED intednsity circuit and be connected between described image combiner circuit and the LCDs and the rgb format vision signal is converted to second change-over circuit of the signal format that adapts to the TV display screen demonstration.
3, LED-backlit source region emission control device according to claim 2 is characterized in that, described rgb format signal comprises video data signal, data clock signal, data useful signal, field sync signal and line synchronizing signal; Described image segmentation circuit comprise the delay circuit that postpones described video data signal, with described data clock signal and data useful signal be the input pixel counter that calculates the current pixel column, with described field sync signal and data useful signal be input calculate linage-counter that current pixel is expert at and respectively with the output of described pixel counter and linage-counter as two input, with the same number of comparer in described zoning; Described comparer is distinguished output field synchronizing signal, data clock signal and is arrived the LED control circuit of this zone correspondence corresponding to the data useful signal of pixel in its corresponding region.
4, LED-backlit source region emission control device according to claim 3, it is characterized in that described LED intednsity circuit comprises and receives signal that described image segmentation circuit sends and by the maximum gradation value that wherein obtains pixel in the one's respective area with have the testing circuit of described maximum gradation value pixel quantity, be connected with described testing circuit and by the maximum gradation value of pixel in the described one's respective area and control circuit of duty ratio with described maximum gradation value pixel quantity decision output drive waveforms dutycycle, be connected with described testing circuit and by the maximum gradation value of pixel in the described one's respective area with have described maximum gradation value pixel quantity decision carries out grey level compensation to the data video signal through described delay circuit delays grey level compensation circuit and be connected and form the constant current source driving circuit of drive waveforms by the dutycycle of its decision with described control circuit of duty ratio.
5, LED-backlit source region emission control device according to claim 4 is characterized in that, the maximum gradation value of described present frame comprises red maximum gradation value, green maximum gradation value and blue maximum gradation value; The pixel count that has maximum gradation value in the described present frame comprises having red maximum gradation value pixel count, have green maximum gradation value pixel count and have blue maximum gradation value pixel count; Described decision circuitry judges describedly have red maximum gradation value pixel count, have green maximum gradation value pixel count and have the size of its corresponding preset value of blue maximum gradation value pixel count respectively.
6, LED-backlit source region emission control device according to claim 5 is characterized in that, described number of regions comprises more than or equal to 2 smaller or equal to 512 integer.
7, LED-backlit source region emission control device according to claim 6 is characterized in that, described number of regions shape comprises square or rectangle.
8, LED-backlit source region emission control device according to claim 7, described first change-over circuit or second change-over circuit comprise special IC or field programmable logic device.
9, LED-backlit source region emission control device according to claim 8, it is characterized in that, described LED intednsity circuit also comprises the correction data that is used for according to input, thereby the working current of regulating each LED makes the constant current source control circuit of its brightness unanimity.
10, LED-backlit source region emission control device according to claim 8 is characterized in that, described correction data comprises by measuring brightness and the brightness expectation value comparison data that obtain of each LED under maximum duty cycle signal drives.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101833927A (en) * | 2010-04-13 | 2010-09-15 | 广州创维平面显示科技有限公司 | Self-adaptive control system of LED backlight source |
| EP2372686A1 (en) | 2010-03-09 | 2011-10-05 | Vestel Elektronik Sanayi ve Ticaret A.S. | A method for local dimming boost using salient features |
| CN103680469A (en) * | 2013-12-23 | 2014-03-26 | 深圳市华星光电技术有限公司 | Liquid crystal display and adjusting method for brightness and contrast degree of liquid crystal display |
| CN104505055A (en) * | 2014-12-31 | 2015-04-08 | 深圳创维－Rgb电子有限公司 | Method and device for adjusting backlight brightness |
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| EP2372686A1 (en) | 2010-03-09 | 2011-10-05 | Vestel Elektronik Sanayi ve Ticaret A.S. | A method for local dimming boost using salient features |
| CN101833927A (en) * | 2010-04-13 | 2010-09-15 | 广州创维平面显示科技有限公司 | Self-adaptive control system of LED backlight source |
| CN101833927B (en) * | 2010-04-13 | 2013-01-02 | 广州创维平面显示科技有限公司 | Self-adaptive control system of LED backlight source |
| CN103680469A (en) * | 2013-12-23 | 2014-03-26 | 深圳市华星光电技术有限公司 | Liquid crystal display and adjusting method for brightness and contrast degree of liquid crystal display |
| CN103680469B (en) * | 2013-12-23 | 2015-12-30 | 深圳市华星光电技术有限公司 | The method of adjustment of the brightness and contrast of a kind of liquid crystal display and liquid crystal display thereof |
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| CN106448570A (en) * | 2016-09-14 | 2017-02-22 | 深圳创维－Rgb电子有限公司 | High-power area dimming control method, control device and television |
| WO2018049777A1 (en) * | 2016-09-14 | 2018-03-22 | 深圳创维－Rgb电子有限公司 | High-power region-based dimming control method, control device and television |
| CN106658134A (en) * | 2016-10-28 | 2017-05-10 | 青岛海信电器股份有限公司 | Time synchronization method for ambient light television and ambient light television |
| CN109379545A (en) * | 2018-10-11 | 2019-02-22 | 深圳Tcl新技术有限公司 | Image display method, apparatus, device, and readable storage medium |
| CN114648944A (en) * | 2020-12-21 | 2022-06-21 | 西安钛铂锶电子科技有限公司 | Display driving method and circuit, LED display panel and display device |
| CN114126135A (en) * | 2021-12-23 | 2022-03-01 | 深圳市迈捷物联光电有限公司 | Intelligent interaction system for lamplight video pictures, intelligent interaction control method for lamplight video pictures and television |
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