CN106875855B - High-strength anti-impact LED display screen and manufacturing process method thereof - Google Patents
High-strength anti-impact LED display screen and manufacturing process method thereof Download PDFInfo
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- CN106875855B CN106875855B CN201710180301.0A CN201710180301A CN106875855B CN 106875855 B CN106875855 B CN 106875855B CN 201710180301 A CN201710180301 A CN 201710180301A CN 106875855 B CN106875855 B CN 106875855B
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- display screen
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Abstract
The invention discloses a high-strength anti-impact LED display screen and a manufacturing process method thereof, which are characterized by comprising an LED display screen body; the driving control system is arranged on the back of the LED display screen body and used for controlling the brightness of the LED lamp beads; the LED lamp bead is arranged on the front face of the LED display screen body and connected with the control system; the glue layer is arranged on the front surface of the LED display screen body and used for protecting the LED lamp beads; by adopting the design, the LED display screen has strong impact resistance, and the LED screen is prevented from being damaged when being impacted by larger external force.
Description
Technical Field
The invention relates to an LED display screen and a manufacturing process method thereof, in particular to a high-strength impact-resistant LED display screen and a manufacturing process method thereof.
Background
LED display screen (LED display): a flat panel display is composed of small LED module panels.
LED, light emitting diode (light emitting diode abbreviation). The LED is made of gallium (Ga) and arsenic (As), phosphorus (P), nitrogen (N) and indium (In) compounds by controlling the display mode of the semiconductor LED, and can radiate visible light when electrons and holes are combined, so that the LED can be made. As indicator lights in circuits and instruments, or as a text or numerical display. Gallium arsenide phosphide diode Guan Fa red light, gallium phosphide diode Guan Fa green light, silicon carbide diode yellow light and indium gallium nitride diode blue light.
LED displays are commonly used to display various information such as text, images, video signals, and the like.
The luminous color and luminous efficiency of the LED are related to the materials and the process for manufacturing the LED, the lamp bulb is just blue light, fluorescent powder is added at the back, different light colors are regulated according to different requirements of users, and four kinds of red, green, blue and yellow are widely used. Since the LED has a low operating voltage (only 1.2-4.0 v), can emit light actively and has a certain brightness, and the brightness can be regulated by voltage (or current), and is impact-resistant, vibration-resistant and long in service life (10 ten thousand hours), no other display mode has been found to be comparable to the LED display mode in a large-sized display device.
A display screen manufactured by putting red and green LED chips or lamps together as one pixel is called a three-color or dual-primary color screen, and a display screen manufactured by putting red, green and blue LED chips or lamps together as one pixel is called a three-primary color screen or a full-color screen. If only one color is called a single-color or single-base color screen, the pixel size of the indoor LED screen is generally 1.5-12 mm, several LED tube cores capable of generating different base colors are often packaged into a whole, the pixel size of the outdoor LED screen is 6-41.5 mm, each pixel consists of a plurality of various single-color LEDs, a common finished product is called a pixel tube, the double-color pixel tube is generally composed of 2 red 1 green, and the three-color pixel tube is composed of 1 red 1 green 1 blue.
Whether a single, double or triple color screen is made of LEDs, the brightness of each LED constituting a pixel for displaying an image must be adjustable, and the fine degree of adjustment is the gray scale of the screen. The higher the gray level, the finer the displayed image, the more abundant the color, and the more complex the corresponding display control system. Generally, 256-level gray level images have soft color transition, and 16-level gray level color images have obvious color transition boundaries. Therefore, color LED screens are currently required to be made into 256-level to 4096-level gray scales.
The LED has been rapidly developed with a great deal of attention, and is not separated from its own advantages. These advantages are summarized as follows: high brightness, low working voltage, small power consumption, large-scale, long service life, impact resistance and stable performance. The development prospect of LEDs is extremely broad, and the development is going to higher brightness, higher weatherability, higher luminous density, higher luminous uniformity, reliability and full color. The LED display screen is widely applied to advertising in different outdoor places such as stadiums, commercial applications, banks, tickets, postal matters, wharfs, malls, stations, postal matters, telecommunication matters, institutions, monitoring, schools, restaurants, hotels, entertainment and the like, and the UNILMIN of the Russian university is adopted to relay pictures in real time by using a Umesh25 building screen in 2013.
The LED display screen has the defects of keeping the brightness and simultaneously, namely, in rainy days, the LED display screen is wetted by rainwater, eyes of people can easily induce eye diseases to face the display screen for a long time and the situation of tearing flow occurs, the pollution of the light source, and the LED display screen as an environment-friendly technology needs to fully consider the influence of light on the mental aspect of people and does not excessively pursue the brightness.
The imported large-scale integrated circuit is comprehensively adopted, the reliability is greatly improved, and the debugging and the maintenance are convenient.
The LED display screens on the market are fragile, have poor anti-striking performance, can be damaged when being impacted by larger external force, and are quite troublesome.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a high-strength impact-resistant LED display screen and a manufacturing process method thereof.
In order to achieve the above purpose, the present invention provides the following technical solutions: a high intensity impact resistant LED display screen, the high intensity impact resistant LED display screen comprising:
an LED display screen body;
the driving control system is arranged on the back of the LED display screen body and used for controlling the brightness of the LED lamp beads;
the LED lamp bead is arranged on the front face of the LED display screen body and connected with the control system;
and the glue layer is arranged on the front surface of the LED display screen body and used for protecting the LED lamp beads.
The glue layer is equal to the LED lamp beads in height.
And a glue layer for preventing water and impact is arranged outside the drive control system.
The glue layer is a double-component glue layer.
The manufacturing process method of the high-strength impact-resistant LED display screen is characterized by comprising the following steps of:
s1: the double-component adhesive A and B are prepared according to the following formula A: b=3:1 mixing, stirring using an automatic stirring glue-pouring machine;
s2: removing residual solvent and moisture on the surface of the substrate, and keeping the substrate dry;
s3: filling glue into the surface of the LED display screen body by using a glue filling jig at the periphery of the base material, so that the lowest point of the surface of the glue layer is higher than the surface of the LED lamp beads;
s4: and after the glue is solidified, polishing, and polishing the glue layer to be as high as the LED.
And (3) carrying out vacuum treatment on the double-component glue after stirring and mixing in the step (S1) to remove bubbles in the double-component glue.
The curing in step S4 is completed at normal temperature or in a heated state.
The curing in the step S4 is performed at the normal temperature under the curing condition of 30 ℃ for 6 hours.
And in the step S4, the curing temperature in the heating state is 50-80 ℃.
The invention has the following advantages: the LED display screen comprises an LED display screen body; the driving control system is arranged on the back of the LED display screen body and used for controlling the brightness of the LED lamp beads; the LED lamp bead is arranged on the front face of the LED display screen body and connected with the control system; the glue layer is arranged on the front surface of the LED display screen body and used for protecting the LED lamp beads; by adopting the design, the LED display screen has strong impact resistance, and the LED screen is prevented from being damaged when being impacted by larger external force.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure: 1. LED display screen body, 2, LED lamp pearl, 3, glue layer.
Detailed Description
Referring to fig. 1, a high-strength impact-resistant LED display screen according to the present embodiment is characterized in that the high-strength impact-resistant LED display screen includes:
an LED display screen body 1;
the driving control system (not shown) is arranged on the back surface of the LED display screen body 1 and used for controlling the brightness of the LED lamp beads 2;
the LED lamp bead 2 is arranged on the front surface of the LED display screen body 1 and connected with the control system;
and the glue layer 3 is arranged on the front surface of the LED display screen body 1 and used for protecting the LED lamp beads 2.
According to the embodiment, the design of the glue layer 3 is arranged on the LED lamp beads 2, the LED lamp beads 2 are protected by glue solidification, and when the LED screen is impacted by large external force, the damage of the LED display screen caused by the damage of the LED lamp beads 2 can be avoided.
And the LED lamp beads 2 are sealed by glue filling, and a waterproof effect is also achieved when the LED lamp is used outdoors.
After the installation of LED display screen is accomplished, by vertical hanging on the wall, for the better heat dissipation of LED display screen, in LED display screen body 1, avoid the circuit, set up a plurality of through-holes (not marked in the figure) that run through from top to bottom, when the LED display screen is in use, LED lamp pearl produces a large amount of heat, at this moment, the air temperature in the through-hole (not marked in the figure) rises, because the design of through-hole (not marked in the figure), the air forms the convection current in through-hole (not marked in the figure), a large amount of heat is taken away to the air that flows, the heat dissipation of LED display screen of being convenient for.
The glue used in the embodiment is ABA-5062 IL film sealing glue, is produced by Abia energy technology Co., dongguan, is a special resin modified adhesive, is two-component, can be cured at normal temperature, can be heated and cured rapidly, and has high bonding strength; no byproduct is separated out, and no solvent is generated; the hardness after solidification is high; high purity, very good electrical properties; very good thermal stability and ultraviolet light resistance.
The shrinkage is extremely small; the refractive index is high, the light transmittance is high, and the color development performance is excellent; high hardness and excellent toughness;
the adhesive force is strong, the adhesion to the PCB, optical and electronic devices, PPA, metal and the like is firm, and the adhesive force is durable;
the heat and cold shock resistance, ultraviolet light resistance, heat resistance and weather resistance are excellent;
the mixed refractive index is 1.6, the cured product is a high-transparency ductile body, and the transmittance is more than 95%.
The air conditioner is used in a dust-free workshop or a class environment close to the dust-free workshop, the working environment temperature is controlled below 25 ℃, and the air humidity is controlled below 50%.
The glue layer 3 is equal to the LED lamp beads 2 in height.
After the glue is solidified, the glue layer 3 is polished to have the same height as the LED lamp beads 2.
The driving control system (not shown) is externally provided with a glue layer 3 for waterproofing and anti-striking.
The waterproof and anti-impact glue layer 3 is also arranged outside the driving control system (not shown in the figure), so that the driving control system (not shown in the figure) improves the anti-impact property and the waterproof property, and the driving control system (not shown in the figure) is prevented from being damaged easily.
The glue layer 3 is a double-component glue layer.
The manufacturing process method of the high-strength impact-resistant LED display screen is characterized by comprising the following steps of:
s1: the double-component adhesive A and B are prepared according to the following formula A: b=3:1 mixing, stirring using an automatic stirring glue-pouring machine;
s2: removing residual solvent and moisture on the surface of the substrate, and keeping the substrate dry;
s3: glue filling jigs are arranged on the periphery of the base material, and glue is filled on the surface of the LED display screen body 1, so that the lowest point of the surface of the glue layer 3 is higher than the surface of the LED lamp beads 2;
s4: after the glue is solidified, polishing is carried out, and the glue layer 3 is ground into the same height as the LED.
And (3) carrying out vacuum treatment on the mixed double-component glue in the step (S1), and removing bubbles in the double-component glue.
The curing in step S4 is completed at normal temperature or in a heated state.
The curing in step S4 is performed at room temperature under curing conditions of 30 degrees celsius for 6 hours.
And in the step S4, the curing temperature in the heating state is 50-80 ℃.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (8)
1. A high intensity impact resistant LED display screen, the high intensity impact resistant LED display screen comprising:
an LED display screen body;
the driving control system is arranged on the back of the LED display screen body and used for controlling the brightness of the LED lamp beads, and a glue layer used for preventing water and resisting striking is arranged outside the driving control system;
the LED lamp bead is arranged on the front face of the LED display screen body and connected with the control system;
the glue layer is arranged on the front surface of the LED display screen body and used for protecting the LED lamp beads;
after the LED display screen is installed and hung on a wall surface vertically, a plurality of through heat dissipation through holes are formed in the position, which is away from the circuit, of the LED display screen body, wherein the glue layer is arranged on the glue layer, and heat generated by the LED lamp beads can be taken away by convection in the heat dissipation through holes.
2. The high strength impact resistant LED display screen of claim 1 wherein said glue layer is of equal height to the LED beads.
3. The high strength impact resistant LED display screen of claim 1 wherein said glue layer is a two-component glue layer.
4. A process for manufacturing a high-strength impact-resistant LED display according to any one of claims 1-3, comprising the steps of:
s1: the double-component adhesive A and B are prepared according to the following formula A: b=3:1 mixing, stirring using an automatic stirring glue-pouring machine;
s2: removing residual solvent and moisture on the surface of the substrate, and keeping the substrate dry;
s3: filling glue into the surface of the LED display screen body by using a glue filling jig at the periphery of the base material, so that the lowest point of the surface of the glue layer is higher than the surface of the LED lamp beads;
s4: and after the glue is solidified, polishing, and polishing the glue layer to be as high as the LED.
5. The process for manufacturing the high-strength impact-resistant LED display screen according to claim 4, wherein the two-component adhesive after being stirred and mixed in the step S1 is subjected to vacuum treatment, and bubbles in the two-component adhesive are removed.
6. The process for manufacturing a high-strength impact-resistant LED display according to claim 4 or 5, wherein the curing in step S4 is performed at normal temperature or in a heated state.
7. The process for manufacturing a high-strength impact-resistant LED display screen according to claim 6, wherein the curing condition in step S4 is 30 degrees celsius for 6 hours at normal temperature.
8. The process for manufacturing the high-strength impact-resistant LED display screen according to claim 6, wherein the heating state curing temperature in the step S4 is 50-80 ℃.
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| CN201710180301.0A CN106875855B (en) | 2017-03-24 | 2017-03-24 | High-strength anti-impact LED display screen and manufacturing process method thereof |
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| CN201710180301.0A CN106875855B (en) | 2017-03-24 | 2017-03-24 | High-strength anti-impact LED display screen and manufacturing process method thereof |
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| CN110120185A (en) * | 2018-02-06 | 2019-08-13 | 深圳诚通光电科技有限公司 | A kind of LED display of anticollision |
| CN109155118B (en) * | 2018-07-20 | 2020-12-29 | 深圳市雷迪奥视觉技术有限公司 | Preparation process of display screen mask and display screen |
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| CN203868774U (en) * | 2014-05-23 | 2014-10-08 | 东莞市帕洛特复合材料有限公司 | LED lamp with improved structure |
| CN205910970U (en) * | 2016-08-23 | 2017-01-25 | 湖南明和光电设备有限公司 | Face shield of light -emitting diode (LED) display screen |
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| JPH09251168A (en) * | 1996-03-15 | 1997-09-22 | Ricoh Co Ltd | Liquid crystal display device |
| JP4573502B2 (en) * | 2003-06-04 | 2010-11-04 | オリンパス株式会社 | Capsule endoscope and capsule endoscope apparatus |
| CN201549151U (en) * | 2009-11-16 | 2010-08-11 | 东莞市邦臣光电有限公司 | Protective structure of LED display screen |
| CN201662978U (en) * | 2010-03-01 | 2010-12-01 | 深圳市洲明科技股份有限公司 | LED driving plate, unit boxes and display screen |
| CN102122463B (en) * | 2011-03-24 | 2015-04-15 | 李海涛 | Manufacturing method of chip LED (light emitting diode) display screen |
| CN202756985U (en) * | 2012-08-01 | 2013-02-27 | 深圳市联建光电股份有限公司 | Flexible light-emitting diode (LED) light string, LED display module and LED display screen thereof |
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| JP2006295116A (en) * | 2005-03-14 | 2006-10-26 | Ricoh Co Ltd | Multilevel interconnection, its manufacturing method, flat panel display and its manufacturing method |
| CN203868774U (en) * | 2014-05-23 | 2014-10-08 | 东莞市帕洛特复合材料有限公司 | LED lamp with improved structure |
| CN205910970U (en) * | 2016-08-23 | 2017-01-25 | 湖南明和光电设备有限公司 | Face shield of light -emitting diode (LED) display screen |
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