CN111505867B - Super large screen liquid crystal business display module based on MiniLED backlight source - Google Patents
Super large screen liquid crystal business display module based on MiniLED backlight source Download PDFInfo
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- CN111505867B CN111505867B CN202010324127.4A CN202010324127A CN111505867B CN 111505867 B CN111505867 B CN 111505867B CN 202010324127 A CN202010324127 A CN 202010324127A CN 111505867 B CN111505867 B CN 111505867B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
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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
- G09G3/34—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 by control of light from an independent source
- G09G3/3406—Control of illumination source
- G09G3/3413—Details of control of colour illumination sources
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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
- G09G3/34—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 by control of light from an independent source
- G09G3/3406—Control of illumination source
- G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
- G09G3/3426—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines the different display panel areas being distributed in two dimensions, e.g. matrix
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- Optics & Photonics (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The invention discloses a super-large screen liquid crystal business display module based on a MiniLED backlight source, which comprises a liquid crystal display screen, an illumination sensor, a photoelectric sensor, a MiniLED backlight source, a first fixing plate, a second fixing plate, a knob, a first connecting plate, a movable plate, a threaded rod, a first sliding groove, a first convex particle, an ambient light sensor, a threaded sleeve, a nut, a second convex particle, a first sliding block, a processor, a second connecting plate, a first telescopic spring, a fixing groove, a second sliding block and a second telescopic spring; the invention relates the illumination condition of the surrounding environment of the liquid crystal business display module, the light-emitting condition of the backlight component and the display condition of the liquid crystal display screen, and feeds back the display and brightness conditions according to the real-time data monitoring and analysis; and the liquid crystal business display module can realize the ultrathin design of splicing molding and lamp driving integration, and achieve the effects of high contrast and high color gamut coverage rate through the instantaneous change of bright and dark pictures.
Description
Technical Field
The invention relates to the technical field of liquid crystal business display modules, in particular to a super-large screen liquid crystal business display module based on a MiniLED backlight source.
Background
The liquid crystal commercial display module is a commercial display huge screen formed by a liquid crystal display screen and a backlight component, and also comprises various complex circuit structures such as an internal power circuit, a signal processing circuit and the like; the liquid crystal display module mainly adopts the working principle that the backlight component emits uniform surface light and is received by eyes through the liquid crystal display screen, and the liquid crystal display screen has the effect of processing the surface light according to pixels so as to display images.
The conventional liquid crystal display module is easy to loose and shake the part clamp due to external impact action such as strong wind and collision, and the clamping tightness of the part is difficult to ensure and the splicing clamping stability of the part is improved; in addition, the existing liquid crystal display module is difficult to link the illumination condition of the surrounding environment, the lighting condition of the backlight assembly and the display condition of the liquid crystal display screen, and feed back the display and brightness conditions according to real-time data monitoring and analysis so as to achieve the targeted associated adjustment effect;
in order to solve the above-mentioned drawbacks, a technical solution is now provided.
Disclosure of Invention
The invention aims to provide a super-large screen liquid crystal commercial display module based on a MiniLED backlight source, which can ensure the clamping tightness of components and improve the splicing clamping stability of the super-large screen liquid crystal commercial display module, so as to prevent the loose and shaking condition of the component clamping caused by external impact action such as strong wind, collision and the like of the liquid crystal commercial display module, and can link the illumination condition of the surrounding environment of the liquid crystal commercial display module, the light-emitting condition of a backlight component and the display condition of a liquid crystal display screen, and feed back the display and brightness conditions of the liquid crystal commercial display module according to real-time data monitoring and analysis, so as to achieve the targeted associated adjustment effect; and the liquid crystal commercial display module can realize the ultrathin design of splicing molding and lamp driving integration, and achieve the effects of high contrast and high color gamut coverage rate through the instantaneous change of bright and dark pictures.
The technical problems to be solved by the invention are as follows:
how according to an effectual mode, solve current liquid crystal business and show the module assembly, easily because of strong wind, outside impact such as collision leads to the part clamping lax, the condition of rocking appears, be difficult to when guaranteeing part centre gripping fastening nature, still promote its concatenation clamping stability, and current liquid crystal business shows the module assembly, still be difficult to link the illumination situation of surrounding environment, backlight unit's luminous situation and liquid crystal display's display situation, and data monitoring according to the real-time nature, the analysis, feed back its demonstration, the luminance condition, in order to reach the problem of the relevant regulation effect of pertinence.
The purpose of the invention can be realized by the following technical scheme:
the ultra-large screen liquid crystal business display module based on the MiniLED backlight comprises a liquid crystal display screen, an illumination sensor, a photoelectric sensor, a MiniLED backlight, a first fixed plate, a second fixed plate, a knob, a first connecting plate, a movable plate, a threaded rod, a first sliding chute, a first convex particle, an ambient light sensor, a threaded sleeve, a nut, a second convex particle, a first sliding block, a processor, a second connecting plate, a first telescopic spring, a fixed groove, a second sliding chute, a second sliding block and a second telescopic spring, wherein the processor is arranged inside the first connecting plate, and the ambient light sensor is uniformly embedded in the outer part of the first connecting plate;
a fixed groove is uniformly formed in one side of the first connecting plate, first convex particles are embedded in the inner walls of the two sides of the fixed groove, a movable plate is correspondingly arranged on one side, close to the outer end of the fixed groove, of the first connecting plate, a second convex particle is embedded in the inner side of the movable plate, a second sliding groove is formed in the center of the outer side of the movable plate, a second sliding block is installed in the second sliding groove, a second telescopic spring is fixed between the second sliding block and the second sliding groove through spot welding, a second connecting plate is movably connected between the two second sliding blocks on the same fixed groove through hinges, and a first telescopic spring is fixed between the second connecting plate and the fixed groove through spot welding;
a first fixing plate is fixed on one side of the second connecting plate through a bolt, a first sliding chute is formed in one side of the second connecting plate, a first sliding block is installed inside the first sliding chute, a threaded sleeve is fixed on one side of the first sliding block through a bolt, a second fixing plate is fixed on one side of the threaded sleeve through a bolt, the threaded rod sequentially penetrates through the second connecting plate and the inner walls of the two sides of the first sliding chute, a knob is fixed at the outer end of the threaded rod through spot welding, two nuts are sleeved on the outer side of the threaded rod, and the two nuts are located on the two sides of the threaded sleeve;
a liquid crystal display screen is arranged between the first fixing plate and the second fixing plate, an illumination sensor is embedded in a corner of the outer side of the liquid crystal display screen, miniLED backlight sources are uniformly arranged in the liquid crystal display screen, a photoelectric sensor is embedded in a corner of the inner wall of one side of the liquid crystal display screen, the liquid crystal display screens form a liquid crystal commercial display module together, and the processor, the illumination sensor, the photoelectric sensor, the MiniLED backlight sources and the ambient light sensor are communicated in a wireless transmission mode;
the environment light sensor is used for acquiring environment illumination intensity data of all liquid crystal display screens in a common place in real time, the illumination sensor is used for acquiring illumination data on each liquid crystal display screen in real time, and the photoelectric sensor is used for acquiring luminous flux data of each light source area in each liquid crystal display screen in real time and transmitting the luminous flux data to the processor;
the processor performs screen display brightness level analysis operation on the display screen according to the operation, and the specific steps are as follows:
a: acquiring co-located ambient illumination intensity data of all liquid crystal display screens in real time, and marking the average ambient illumination intensity data on each liquid crystal display screen as Qi, wherein i =1.. N; acquiring illumination data on each liquid crystal display screen in real time, and calibrating the illumination data as Wi, i =1.. N; acquiring light flux data of each light source area in each liquid crystal display screen in real time, and marking the average light flux data of each light source area in each liquid crystal display screen as Eij, wherein i =1.. N, j =1.. M, qi, wi and Eij are in one-to-one correspondence, a variable i corresponds to each liquid crystal display screen, a variable j corresponds to each light source area, and both the variable n and m represent positive integers more than 1;
b: according to the formula
Obtaining a bright-dark bright level hierarchy Ri on each liquid crystal display screen in real time, wherein q, w and e are weight coefficients, q is greater than e and is greater than w, and q + w + e =4.2851; when the brightness signal is greater than or equal to the preset value r and less than the preset value r, the corresponding liquid crystal display screen generates a bright signal and a dark signal, and the bright signal and the dark signal are collectively called as a bright signal;
when the brightness signal corresponding to any one liquid crystal display screen is the same as the brightness signals corresponding to other three liquid crystal display screens in the vertical direction, the liquid crystal display screen generates a vertical adjusting signal, otherwise, the liquid crystal display screen generates a vertical proper signal; when the brightness signal corresponding to any one liquid crystal display screen is identical to the brightness signals corresponding to the other two liquid crystal display screens in the horizontal direction, the liquid crystal display screen generates a horizontal adjusting signal, otherwise, the liquid crystal display screen generates a horizontal proper signal;
when the liquid crystal display screen corresponds to the vertical adjusting signal and the horizontal adjusting signal, the liquid crystal display screen calls a related high-level adjusting parameter file from the processor and controls the MiniLED backlight source to execute high-level adjusting parameter data; when the liquid crystal display screen corresponds to the vertical proper signal and the horizontal proper signal, no processing is performed; when the liquid crystal display screen is in other conditions, the related low-level adjusting parameter file is called from the processor, and the MiniLED backlight source is controlled to execute low-level adjusting parameter data;
the processor is also internally recorded and stored with a high-level adjusting parameter file and a low-level adjusting parameter file, when the liquid crystal display screen is a bright signal and generates each adjusting signal or each proper signal according to the bright signal, each parameter data in the adjusting parameter files at each level is executed by acquiring a gray-level file, and when the liquid crystal display screen is a gray-level signal and generates each adjusting signal or each proper signal according to the gray-level signal, each parameter data in the adjusting parameter files at each level is executed by acquiring a bright-level file in the adjusting parameter files at each level.
Furthermore, first protruding grain and second protruding grain are the even form and distribute, and both are mutual structure of cooperateing, pass through hinge swing joint between first connecting plate and the fly leaf, and a fixed slot cooperatees with two fly leafs.
Furthermore, the first sliding groove, the first fixing plate and the second fixing plate are vertically arranged, the first fixing plate and the second fixing plate are arranged in parallel and are of a matched structure, and the outer side face of the threaded sleeve is flush with the outer end face of the first sliding groove.
Furthermore, the threaded rod is movably connected with the first sliding groove and the second connecting plate through bearings, and the threaded rod is movably connected with the threaded sleeve and the nut through threads.
The invention has the beneficial effects that:
the liquid crystal display screen is arranged between a first fixing plate and a second fixing plate on a second connecting plate, then a knob is rotated to drive a threaded rod to rotate, the threaded rod drives a threaded sleeve to move, the threaded sleeve drives the second fixing plate to gradually approach the first fixing plate until the first fixing plate and the second fixing plate tightly clamp the liquid crystal display screen, and at the moment, a nut is screwed to limit the position of the second fixing plate so as to ensure the clamping tightness of the liquid crystal display screen;
when the liquid crystal display screen is impacted by strong wind, collision and other external impacts, the liquid crystal display screen is caused to shake up and down and left and right, the liquid crystal display screen drives the second connecting plate to move and the first telescopic spring to elastically deform, the second connecting plate drives the second sliding block to move, and the second sliding block drives the second telescopic spring to elastically deform and simultaneously drives the movable plate to move, so that the second convex particles on the inner side of the movable plate are in contact with the first convex particles on the side wall of the fixed groove, namely the external impact strength is absorbed and consumed according to the common restoring force action of the first telescopic spring and the second telescopic spring and the friction force action between the first convex particles and the second convex particles, and the splicing clamping stability of the liquid crystal display screen is improved so as to prevent the liquid crystal display screen from shaking up and down and left and right;
the ambient light sensor collects the ambient light intensity data of all the liquid crystal display screens in real time, the illumination sensor collects the illumination data on each liquid crystal display screen in real time, the photoelectric sensor collects the luminous flux data of each light source area in each liquid crystal display screen in real time, and the light flux data and the luminous flux data of each light source area in each liquid crystal display screen are subjected to screen display brightness level analysis operation together, namely, the ambient light intensity data of all the liquid crystal display screens in common, the illumination data on each liquid crystal display screen and the luminous flux data of each light source area in each liquid crystal display screen are subjected to redefinition, weighted formula analysis and comparison to obtain a brightness level signal associated with the liquid crystal display screen, and the brightness level signals in the vertical direction and the horizontal direction of the liquid crystal display screen are subjected to horizontal division and comparison combined processing to call associated regulation parameter files at each level, and accordingly control the MiniLED backlight source to execute the parameter data therein;
further, the clamping tightness of the parts is guaranteed, meanwhile, the splicing clamping stability degree of the parts is improved, the situations that the parts are loose and shake due to strong wind, collision and other external impact actions of the liquid crystal business display module are avoided, the illumination condition of the surrounding environment of the liquid crystal business display module, the light emitting condition of the backlight assembly and the display condition of the liquid crystal display screen are connected, the display and brightness conditions of the liquid crystal business display module are fed back according to real-time data monitoring and analysis, and the targeted relevant adjusting effect is achieved; and the liquid crystal commercial display module can realize the ultrathin design of splicing molding and lamp driving integration, and achieve the effects of high contrast and high color gamut coverage rate through the instantaneous change of bright and dark pictures.
Drawings
For the understanding of those skilled in the art, the present invention will be further described with reference to the accompanying drawings;
FIG. 1 is a schematic overall front view of the present invention;
FIG. 2 is a schematic view of the internal structure of the LCD panel according to the present invention;
FIG. 3 is an overall top cross-sectional view of the present invention;
FIG. 4 is a schematic view of the internal structure of the movable plate of the present invention;
fig. 5 is a block diagram of the system of the present invention.
Detailed Description
As shown in fig. 1-5, the super-large screen liquid crystal display commercial display module based on the MiniLED backlight source includes a liquid crystal display screen 1, an illuminance sensor 2, a photoelectric sensor 3, a MiniLED backlight source 4, a first fixing plate 5, a second fixing plate 6, a knob 7, a first connecting plate 8, a movable plate 9, a threaded rod 10, a first sliding chute 11, a first convex particle 12, an ambient light sensor 13, a threaded sleeve 14, a nut 15, a second convex particle 16, a first slider 17, a processor 18, a second connecting plate 19, a first expansion spring 20, a fixing groove 21, a second sliding chute 22, a second slider 23 and a second expansion spring 24, wherein the processor 18 is arranged inside the first connecting plate 8, and the ambient light sensor 13 is uniformly embedded in the outside of the first connecting plate 8;
a fixed groove 21 is uniformly formed in one side of the first connecting plate 8, first convex particles 12 are embedded in inner walls of two sides of the fixed groove 21, a movable plate 9 is correspondingly arranged on one side of the first connecting plate 8 close to the outer end of the fixed groove 21, a second convex particle 16 is embedded in the inner side of the movable plate 9, a second sliding groove 22 is formed in the center of the outer side of the movable plate 9, a second sliding block 23 is installed inside the second sliding groove 22, a second expansion spring 24 is fixed between the second sliding block 23 and the second sliding groove 22 through spot welding, a second connecting plate 19 is movably connected between the two second sliding blocks 23 on the same fixed groove 21 through hinges, a first expansion spring 20 is fixed between the second connecting plate 19 and the fixed groove 21 through spot welding, the first convex particles 12 and the second convex particles 16 are uniformly distributed and are of a matched structure, the first connecting plate 8 and the movable plate 9 are movably connected through hinges, and one fixed groove 21 is matched with the two movable plates 9;
a first fixing plate 5 is fixed on one side of a second connecting plate 19 through a bolt, a first sliding groove 11 is formed in one side of the second connecting plate 19, a first sliding block 17 is installed inside the first sliding groove 11, a threaded sleeve 14 is fixed on one side of the first sliding block 17 through a bolt, a second fixing plate 6 is fixed on one side of the threaded sleeve 14 through a bolt, a threaded rod 10 sequentially penetrates through inner walls of the two sides of the second connecting plate 19 and the first sliding groove 11, a knob 7 is fixed on the outer end of the threaded rod 10 through spot welding, two nuts 15 are sleeved on the outer side of the threaded rod 10 and located on the two sides of the threaded sleeve 14, the threaded rod 10 is movably connected with the first sliding groove 11 and the second connecting plate 19 through bearings, the threaded rod 10 is movably connected with the threaded sleeve 14 and the nuts 15 through threads, the first sliding groove 11 is vertically arranged with the first fixing plate 5 and the second fixing plate 6, the first fixing plate 5 and the second fixing plate 6 are arranged in parallel and are matched with each other, and the outer side surface of the threaded sleeve 14 is flush with the outer end surface of the first sliding groove 11;
a liquid crystal display screen 1 is arranged between the first fixing plate 5 and the second fixing plate 6, an illumination sensor 2 is embedded in the corner of the outer side of the liquid crystal display screen 1, a MiniLED backlight source 4 is uniformly arranged in the liquid crystal display screen 1, a photoelectric sensor 3 is embedded in the corner of the inner wall of one side of the liquid crystal display screen 1, a plurality of liquid crystal display screens 1 form a liquid crystal commercial display module together, and the processor 18 is communicated with the illumination sensor 2, the photoelectric sensor 3, the MiniLED backlight source 4 and the ambient light sensor 13 in a wireless transmission mode;
the environment light sensor 13 is used for acquiring environment illumination intensity data of all liquid crystal display screens 1 in a common place in real time, the illumination sensor 2 is used for acquiring illumination data on each liquid crystal display screen 1 in real time, and the photoelectric sensor 3 is used for acquiring luminous flux data of each light source area in each liquid crystal display screen 1 in real time and transmitting the luminous flux data to the processor 18;
the processor 18 performs the screen brightness level analysis operation accordingly, which includes the following steps:
a: acquiring environmental illumination intensity data of all liquid crystal display screens 1 in a co-location mode in real time, and marking the average environmental illumination intensity data on each liquid crystal display screen 1 as Qi, wherein i =1.. N; acquiring illumination data on each liquid crystal display screen 1 in real time, and calibrating the illumination data as Wi, wherein i =1.. N; acquiring light flux data of each light source area in each liquid crystal display screen 1 in real time, and marking the average light flux data of each light source area in each liquid crystal display screen 1 as Eij, wherein i =1.. N, j =1.. M, and Qi, wi and Eij are in one-to-one correspondence with each other, a variable i corresponds to each liquid crystal display screen 1, a variable j corresponds to each light source area, and both the variable n and m represent positive integers greater than 1;
b: according to the formula
Obtaining real-time bright and dark bright level hierarchies Ri on each liquid crystal display screen 1, wherein q, w and e are weight coefficients, q is larger than e and larger than w, and q + w + e =4.2851; when the brightness is greater than or equal to the preset value r and is less than the preset value r, the corresponding liquid crystal display screen 1 generates a bright signal and a dark signal, and the bright signal and the dark signal are collectively called as a bright level signal;
when the brightness signal corresponding to any one liquid crystal display screen 1 is the same as the brightness signals corresponding to the other three liquid crystal display screens 1 in the vertical direction, only one or no part is the same, the liquid crystal display screen 1 generates a vertical adjusting signal, otherwise, the liquid crystal display screen 1 generates a vertical proper signal; when the brightness signal corresponding to any one liquid crystal display screen 1 is identical to the brightness signals corresponding to the other two liquid crystal display screens 1 in the horizontal direction, the liquid crystal display screen 1 generates a horizontal adjusting signal, otherwise, the liquid crystal display screen 1 generates a horizontal proper signal;
when the liquid crystal display screen 1 corresponds to the vertical adjustment signal and the horizontal adjustment signal, the associated high-level adjustment parameter file is called from the processor 18, and the MiniLED backlight source 4 is controlled to execute high-level parameter data; when the liquid crystal display screen 1 corresponds to the vertical proper signal and the horizontal proper signal, no processing is performed; when the liquid crystal display screen 1 is in other conditions, the associated low-level adjustment parameter file is called from the processor 18, and the MiniLED backlight source 4 is controlled to execute low-level adjustment parameter data;
the processor 18 also records and stores a high-level adjustment parameter file and a low-level adjustment parameter file, and when the liquid crystal display screen 1 is a bright signal and each adjustment signal or each appropriate signal is generated according to the bright signal, each parameter data in the high-level adjustment parameter file is executed by acquiring a gray level file in each level adjustment parameter file, and when the liquid crystal display screen 1 is a gray level signal and each adjustment signal or each appropriate signal is generated according to the gray level signal, each parameter data in the high-level adjustment parameter file is executed by acquiring a bright level file in each level adjustment parameter file.
The splicing and clamping stability of the liquid crystal display module is improved while the clamping tightness of the components is ensured, so that the situations of looseness and shaking of the component clamp caused by external impact action such as strong wind, collision and the like of the liquid crystal display module are avoided, the illumination condition of the surrounding environment of the liquid crystal display module, the light-emitting condition of the backlight assembly and the display condition of the liquid crystal display screen are linked, and the display and brightness conditions of the liquid crystal display module are fed back according to real-time data monitoring and analysis, so that a targeted associated regulation effect is achieved; and the liquid crystal business display module can realize the ultrathin design of splicing molding and lamp driving integration, and achieve the effects of high contrast and high color gamut coverage rate through the instantaneous change of bright and dark pictures.
The foregoing is merely illustrative and explanatory of the present invention and various modifications, additions or substitutions may be made to the specific embodiments described by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (4)
1. The ultra-large screen liquid crystal business display module based on the MiniLED backlight comprises a liquid crystal display screen (1), an illumination sensor (2), a photoelectric sensor (3), a MiniLED backlight (4), a first fixing plate (5), a second fixing plate (6), a knob (7), a first connecting plate (8), a movable plate (9), a threaded rod (10), a first sliding groove (11), a first convex particle (12), an ambient light sensor (13), a threaded sleeve (14), a nut (15), a second convex particle (16), a first sliding block (17), a processor (18), a second connecting plate (19), a first telescopic spring (20), a fixing groove (21), a second sliding groove (22), a second sliding block (23) and a second telescopic spring (24), and is characterized in that the processor (18) is arranged inside the first connecting plate (8), and the ambient light sensor (13) is uniformly embedded in the outer portion of the first connecting plate (8);
a fixing groove (21) is uniformly formed in one side of the first connecting plate (8), first convex particles (12) are embedded in inner walls of two sides of the fixing groove (21), a movable plate (9) is correspondingly arranged on one side, close to the outer end of the fixing groove (21), of the first connecting plate (8), second convex particles (16) are embedded in the inner side of the movable plate (9), a second sliding groove (22) is formed in the center of the outer side of the movable plate (9), a second sliding block (23) is installed inside the second sliding groove (22), a second telescopic spring (24) is fixed between the second sliding block (23) and the second sliding groove (22) through spot welding, a second connecting plate (19) is movably connected between the two second sliding blocks (23) on the same fixing groove (21) through hinges, and a first telescopic spring (20) is fixed between the second connecting plate (19) and the fixing groove (21) through spot welding;
a first fixing plate (5) is fixed on one side of the second connecting plate (19) through a bolt, a first sliding groove (11) is formed in one side of the second connecting plate (19), a first sliding block (17) is installed inside the first sliding groove (11), a threaded sleeve (14) is fixed on one side of the first sliding block (17) through a bolt, a second fixing plate (6) is fixed on one side of the threaded sleeve (14) through a bolt, the threaded rod (10) sequentially penetrates through the inner walls of the two sides of the second connecting plate (19) and the first sliding groove (11), a knob (7) is fixed on the outer end of the threaded rod (10) through spot welding, two nuts (15) are sleeved on the outer side of the threaded rod (10), and the two nuts (15) are located on the two sides of the threaded sleeve (14);
a liquid crystal display (1) is arranged between the first fixing plate (5) and the second fixing plate (6), an illumination sensor (2) is embedded in a corner of the outer side of the liquid crystal display (1), a MiniLED backlight source (4) is uniformly arranged inside the liquid crystal display (1), a photoelectric sensor (3) is embedded in a corner of the inner wall of one side of the liquid crystal display (1), the liquid crystal display (1) and the illumination sensor (2), the photoelectric sensor (3), the MiniLED backlight source (4) and the ambient light sensor (13) form a liquid crystal business display module, and the processor (18) is communicated with the illumination sensor (2), the photoelectric sensor (3), the MiniLED backlight source (4) and the ambient light sensor (13) in a wireless transmission mode;
the environment light sensor (13) is used for acquiring environment illumination intensity data of all liquid crystal display screens (1) in a co-location mode in real time, the illumination sensor (2) is used for acquiring illumination data on each liquid crystal display screen (1) in real time, and the photoelectric sensor (3) is used for acquiring light flux data of each light source area in each liquid crystal display screen (1) in real time and transmitting the light flux data to the processor (18) together;
the processor (18) performs a screen brightness level analysis operation on the image data accordingly, and the specific steps are as follows:
a: acquiring co-located ambient light intensity data of all liquid crystal display screens (1) in real time, and marking average ambient light intensity data on each liquid crystal display screen (1) as Qi, wherein i =1.. N; acquiring illumination data on each liquid crystal display screen (1) in real time, and calibrating the illumination data as Wi, i =1.. N; acquiring light flux data of each light source area in each liquid crystal display screen (1) in real time, and marking the average light flux data of each light source area in each liquid crystal display screen (1) as Eij, i =1.. N, j =1.. M, wherein Qi, wi and Eij are in one-to-one correspondence with each other;
the variable i corresponds to each liquid crystal display screen (1), the variable j corresponds to each light source area, and the variables n and m both represent positive integers larger than 1;
b: according to the formula
Obtaining a real-time bright and dark bright level hierarchy Ri on each liquid crystal display screen (1), wherein q, w and e are all weight coefficients, q is larger than e and is larger than w, and q + w + e =4.2851; when the brightness signal is greater than or equal to the preset value r and is less than the preset value r, the corresponding liquid crystal display screen (1) generates a bright signal and a dark signal, and the bright signal and the dark signal are collectively called as a bright level signal;
when the brightness signal corresponding to any one liquid crystal display screen (1) is the same as the brightness signals corresponding to other three liquid crystal display screens (1) in the vertical direction, the liquid crystal display screen (1) generates a vertical adjusting signal, otherwise, the liquid crystal display screen (1) generates a vertical proper signal; when the brightness signal corresponding to any one liquid crystal display screen (1) is identical to the brightness signals corresponding to other two liquid crystal display screens (1) in the horizontal direction, the liquid crystal display screen (1) generates a horizontal adjusting signal, otherwise, the liquid crystal display screen (1) generates a horizontal proper signal;
when the liquid crystal display screen (1) corresponds to the vertical adjusting signal and the horizontal adjusting signal, the related high-level adjusting parameter file is called from the processor (18), and the MiniLED backlight source (4) is controlled to execute high-level adjusting parameter data; when the liquid crystal display screen (1) corresponds to the vertical proper signal and the horizontal proper signal, no processing is performed; when the liquid crystal display screen (1) is in other conditions, the associated low-level adjustment parameter file is called from the processor (18), and the MiniLED backlight source (4) is controlled to execute low-level adjustment parameter data;
the processor (18) is internally provided with a high-level adjusting parameter file and a low-level adjusting parameter file which are recorded and stored.
2. The very large screen liquid crystal display (LCM) module of claim 1, wherein the first protrusions (12) and the second protrusions (16) are uniformly distributed and are mutually engaged, the first connecting plate (8) is movably connected to the movable plate (9) through a hinge, and a fixing groove (21) is engaged with the two movable plates (9).
3. The very large screen Liquid Crystal Display (LCD) module of claim 1, wherein the first sliding groove (11) is vertically arranged with the first fixing plate (5) and the second fixing plate (6), the first fixing plate (5) and the second fixing plate (6) are arranged in parallel, and they are mutually matched, and the outer side of the threaded sleeve (14) is flush with the outer end face of the first sliding groove (11).
4. The ultra-large screen liquid crystal display commercial module based on the MiniLED backlight source as claimed in claim 1, wherein the threaded rod (10) is movably connected with the first chute (11) and the second connecting plate (19) through bearings, and the threaded rod (10) is movably connected with the threaded sleeve (14) and the nut (15) through threads.
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