CN115241352A - High-color-gamut light and thin capacitive mobile phone display screen and preparation method thereof - Google Patents

High-color-gamut light and thin capacitive mobile phone display screen and preparation method thereof Download PDF

Info

Publication number
CN115241352A
CN115241352A CN202210731558.1A CN202210731558A CN115241352A CN 115241352 A CN115241352 A CN 115241352A CN 202210731558 A CN202210731558 A CN 202210731558A CN 115241352 A CN115241352 A CN 115241352A
Authority
CN
China
Prior art keywords
light
barrier film
quantum
led chip
film
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210731558.1A
Other languages
Chinese (zh)
Inventor
王绍斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Shuangyu Shengtai Technology Co ltd
Original Assignee
Shenzhen Shuangyu Shengtai Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Shuangyu Shengtai Technology Co ltd filed Critical Shenzhen Shuangyu Shengtai Technology Co ltd
Priority to CN202210731558.1A priority Critical patent/CN115241352A/en
Publication of CN115241352A publication Critical patent/CN115241352A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/58—Optical field-shaping elements
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/005—Processes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/44—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the coatings, e.g. passivation layer or anti-reflective coating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/50—Wavelength conversion elements
    • H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
    • H01L33/502—Wavelength conversion materials
    • H01L33/504—Elements with two or more wavelength conversion materials
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
    • H01L2933/0008—Processes
    • H01L2933/0025—Processes relating to coatings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
    • H01L2933/0008—Processes
    • H01L2933/0033—Processes relating to semiconductor body packages
    • H01L2933/0041—Processes relating to semiconductor body packages relating to wavelength conversion elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
    • H01L2933/0008—Processes
    • H01L2933/0033—Processes relating to semiconductor body packages
    • H01L2933/0058—Processes relating to semiconductor body packages relating to optical field-shaping elements

Abstract

The invention provides a high-color gamut light and thin capacitive mobile phone display screen and a preparation method thereof, which relate to the technical field of mobile phone display screens and comprise an LED chip and a quantum film, wherein the LED chip and the quantum film form a white light LED, and the flow of screen display is as follows: sp1: selecting filling materials of the LED chip and the quantum film; sp2: manufacturing and sealing a quantum film; sp3: manufacturing a first light-condensing sheet and a second light-condensing sheet, and combining the quantum film sealed in the Sp1 with the first light-condensing sheet and the second light-condensing sheet; sp4: manufacturing an optical filter and a polaroid; sp5: and carrying out sealing and isolating operation on the whole LED chip display device. The packaging effect of the white light can be improved through secondary condensation; the blue light chip, the green fluorescent powder and the new red fluorescent powder are combined, so that red light and green light components in a spectrum are improved, and the color gamut is improved through the LED chip of the high-color-gamut fluoride; through the design of the double-layer protection structure of the first barrier film and the second barrier film, water and oxygen are isolated to the maximum extent.

Description

High-color-gamut light and thin capacitive mobile phone display screen and preparation method thereof
Technical Field
The invention relates to the technical field of mobile phone display screens, in particular to a high-color gamut light and thin capacitive mobile phone display screen and a preparation method thereof.
Background
Color gamut is an important indicator of a display device, and is the sum of colors that a single device can produce, which represents the ability of the display device to display colors. The color gamut is influenced by RGB (red, green and blue) three-primary-color chromaticity points, if the RGB three primary colors can be displayed, the color gamut is higher, the triangular area formed by the RGB chromaticity points in the chromaticity space is used for quantification, the larger the area of the triangular area is, the stronger the color expression capability is, and the more gorgeous the displayed color is. When selecting RGB spectral color, the U-shaped form determines that the triangle formed by the spectral color can not cover the whole area, namely: the three primary colors cannot mix all visible light, so the proportion of a triangle formed by RGB chromaticity points covering a standard area is called as a color gamut coverage. The main factors affecting the color gamut size include light transmittance, backlight design, etc.
The patent No. CN201920182479.3 discloses a high colour gamut display screen of high transmissivity, including backlight and LCD screen, the surface of backlight is equipped with the LCD screen, the side welding of LCD screen has drive circuit board, the LCD screen includes back polarizing plate, TFT matrix, liquid crystal layer, RGB filters look membrane and preceding polarizing plate, the bottom surface of liquid crystal layer bonds in proper order has TFT matrix and back polarizing plate, the surface of liquid crystal layer is equipped with RGB filters the look membrane, and the surface that RGB filtered the look membrane is equipped with preceding polarizing plate, the backlight includes light source base plate, light guide plate and optical film piece.
The patent with the patent number of CN201510657063.9 discloses a high-color-gamut liquid crystal display screen and a manufacturing method thereof, the high-color-gamut liquid crystal display screen comprises a first cover plate, a liquid crystal display panel is fixedly arranged on the back surface of the first cover plate, a second cover plate is arranged on the back surface of the liquid crystal display panel, a closed space is formed between the second cover plate and the liquid crystal display panel, optical cement is filled in the closed space, quantum dot particles are uniformly mixed in the optical cement, and a backlight module is arranged on the back surface of the second cover plate.
At present, most mobile phone display screens adopt a quantum dot technology, and mainly adopt the following modes: on the basis of the existing display screen structure, a thin film containing quantum dot materials is added, and when light rays pass through the thin film and the optical filter, the screen color can be improved. However, certain problems are easily present: 1. the quantum film is added, so that the light transmittance of the LED chip is influenced in the process of transmitting the quantum film and the optical filter in the process of generating red and green light through the LED chip, and the packaging effect of white light is influenced when the light transmittance does not reach a certain degree; 2. when a quantum film material is selected to improve the color gamut of the mobile phone, the common LED chip is used as a light emitting source, so that on one hand, the light efficiency conversion of the quantum film is influenced in the adaptation degree, and the whole light emitting efficiency is influenced, and on the other hand, in the working process of the common LED chip which is used as the light emitting source, the working environment of the LED chip is influenced in order to change the color gamut, such as consumed extra power, heat and the like, can be influenced by aiming at the whole mobile phone display; 3. in the traditional packaging process of the quantum film, incomplete protection can be realized in the process of packaging and manufacturing the quantum material, and the incomplete protection comprises the heat insulation effect and the isolation effect of the quantum film.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a high-color gamut light and thin capacitive mobile phone display screen and a preparation method thereof, and solves the following problems: 1. through the first light-gathering sheet and the second light-gathering sheet, the packaging effect of white light can be improved through secondary light gathering in the process of light transmission of the LED chip; 2. the white light LED is formed by combining a blue light chip, green fluorescent powder and new red fluorescent powder, so that red light and green light components in a spectrum are improved, the new red fluorescent powder adopts fluoride, the color gamut is improved through the LED chip of the high-color-gamut fluoride, extra power consumption and heat are not increased, and the white light LED is suitable for an airborne use environment; 3. compared with the traditional packaging process, the LED packaging structure has the advantages that through the design of the double-layer protection structure of the first barrier film and the second barrier film and the protection of the first light-gathering sheet and the second light-gathering sheet, water and oxygen are isolated to the greatest extent, and the influence of the heating of the LED chip on the luminous efficiency of the quantum dot layer is avoided.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a high-color gamut light and thin capacitive mobile phone display screen and a preparation method thereof comprise an LED chip and a quantum film, wherein the LED chip is matched with the quantum film to form a white light LED, and the flow of screen display is as follows:
sp1: selecting filling materials of the LED chip and the quantum film;
sp2: manufacturing and sealing a quantum film;
sp3: manufacturing a first light-gathering sheet and a second light-gathering sheet, and combining the quantum film sealed in the Sp1 with the first light-gathering sheet and the second light-gathering sheet;
sp4: manufacturing an optical filter and a polaroid;
sp5: and carrying out sealing and isolating operation on the whole LED chip display device.
Preferably, the top and the bottom of the quantum film are respectively provided with a first barrier film and a second barrier film, the quantum film is uniformly coated on the surfaces of the first barrier film and the second barrier film after being stirred by adopting a quantum dot material under a sealed condition, and the first barrier film and the second barrier film are made of a PMMA material.
Preferably, a second light condensing sheet is arranged between the LED chip and the second barrier film, the cambered surface of the second barrier film is embedded in the concave surface of the second light condensing sheet, the second barrier film and the second light condensing sheet form a cuboid structure, a first light condensing sheet is arranged at the top of the first barrier film, the cambered surface of the first light condensing sheet is embedded in the concave surface of the first barrier film, and the cuboid structure is formed between the first barrier film and the first light condensing sheet.
Preferably, the edges of the first barrier film, the second barrier film and the LED chip are coated with sealing glue, the sealing glue is designed in an annular shape, the sealing glue is liquid glue formed by using epoxy resin as a material, and the sealing glue is bonded at the edges of the quantum film, the first barrier film, the second barrier film and the LED chip.
Preferably, a substrate is arranged at the bottom of the LED chip, an organic substrate is arranged at the bottom of the substrate, an optical filter is arranged at the top of the first light-gathering piece, a polarizing piece is arranged at the top of the optical filter, a screen is arranged at the top of the polarizing piece, and sealing glue is coated on the surfaces of the optical filter and the polarizing piece.
Preferably, the packaging process of the quantum film and the LED chip is as follows:
sp1: firstly, uniformly mixing epoxy resin AB packaging glue according to a mass ratio of 1:2, then carrying out vacuum defoaming to form sealing glue, then injecting the sealing glue into the bottom of a second polaroid, and curing at a constant temperature of 80 ℃ for 10 hours in a vacuum drying oven to form an AB glue protective layer;
sp2: uniformly mixing the synthesized red and green light quantum dots with the proportioned AB glue, then performing vacuum defoaming, coating the mixture on a first barrier film and a second barrier film, and curing the mixture for 12 hours at a constant temperature of 60 ℃ in a vacuum drying oven to form a quantum dot light-emitting layer, namely a quantum film;
sp3: continuously filling AB glue into the first light-gathering sheet and the second light-gathering sheet, and curing for 6h at a constant temperature of 60 ℃ in a vacuum drying oven, so that the first light-gathering sheet, the first barrier film, the second light-gathering sheet and the second barrier film are combined into a whole;
sp4: coating sealing glue on the edges of the integrated second polaroid, second barrier film and LED chip, mounting on the top of the substrate, and curing by irradiating with ultraviolet lamp for 10 min;
sp5: coating sealing glue on the edges of the integrated first light-gathering sheet and the first barrier film, and mounting the optical filter;
sp6: and repeating the steps to finish the packaging of other LEDs on the strip-shaped substrate, and finally connecting the electrodes of each blue LED chip in series through the common electrode to finish the packaging of the whole LED chip and the quantum film structure.
(III) advantageous effects
The invention provides a high-color gamut light and thin capacitive mobile phone display screen and a preparation method thereof, and the high-color gamut light and thin capacitive mobile phone display screen has the following beneficial effects:
1. adopt first spotlight piece and second spotlight piece, in-process that carries out work as the light emitting source through the LED chip, regard as the LED light emitting source with the blue light chip, the blue light is after seeing through the second spotlight piece, spotlight effect and the PMMA lens material of itself through the second spotlight piece, the luminousness is high on the one hand, on the other hand spotlight can make the blue light can be abundant arouse red green light on the quantum film, and can not have the condition that the blue light spreads the edge and disappears, after arousing red green light, red green light and the blue light that the transmission was come pass through first spotlight piece, first spotlight piece is the same with the second spotlight piece, fuse high luminousness and spotlight effect, form LED white light.
2. Fill polymer fluoride material in the quantum material of quantum membrane, because the spectrum selection of toner and the wave band that the colored filter spectrum matches, emission spectrum's half-wave width is narrow simultaneously, just can effectual promotion LED colour gamut, high colour gamut fluoride LED adopts fluoride phosphor powder, this mode more is applicable to the machine and carries the demonstration and promote the colour gamut, neither increase extra consumption and heat, can be applicable to the service environment who carries again, contrast former LED in a poor light, LED is shaded to the tri-color light is because its luminous efficacy hangs down the replenishment and the compatible part of night vision that more is applicable to the colourity, former LED in a poor light can influence its light efficiency conversion condition at the in-process of collocation quantum membrane use.
3. The quantum film mixed with red and green quantum dots is excited by blue light emitted by a blue light LED chip, red light and green light are emitted and then mixed with transmitted blue light to generate white light, the high-quality red and green light quantum dots are obtained, epoxy resin sealing glue is mixed, white light quantum dots generated by mixing a first light-gathering sheet and a second light-gathering sheet are matched, the first light-gathering sheet and the second light-gathering sheet are formed by modifying PMMA lenses, the light transmittance and the light mixing degree of the red, green, blue and white light in the transmission process are improved, finally the white light is displayed through an LED screen, the packaging process is different from the traditional packaging process, through the design of a double-layer protection structure, the quantum film is sealed through the first barrier film and the second barrier film matched with the sealing glue, water and oxygen are isolated to the maximum extent, meanwhile, the LED chip, the second barrier film, the second light-gathering sheet and the quantum film are packaged through the sealing glue in a combined mode, and the second barrier film and the second light-gathering sheet have double-layer blocking effect, and the influence of the LED chip on the luminous efficiency of the quantum film is avoided.
4. In the process of packaging the LED white light, in order to make a mobile phone display screen thinner, a quantum film is adopted for design, because the quantum film needs to isolate air in the working process and avoid the conditions of moisture, heat and the like, the quantum film needs to be packaged, and under the condition of not influencing the thickness of the whole mobile phone display screen, a better light transmittance effect and a better white light LED display effect are achieved.
(IV) description of the drawings
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is a flow chart of the present invention for synthesizing white light by LED chips;
fig. 3 is a color gamut comparison chart in the present invention.
Wherein, 1, a screen; 2. a polarizing plate; 3. an optical filter; 4. a first light-condensing sheet; 5. a first barrier film; 6. sealing the glue; 7. a substrate; 8. a quantum film; 9. a second barrier film; 10. a second polarizer; 11. an LED chip; 12. an organic substrate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1-3, a high-color gamut light and thin capacitive mobile phone display screen and a preparation method thereof, comprising an LED chip 11 and a quantum film 8, wherein the flow of forming a white LED by the LED chip 11 and the quantum film 8 through a screen 1 is as follows:
sp1: select the filler material of LED chip 11 and quantum membrane 8, fill polymer fluoride material in the quantum material of quantum membrane 8, because the spectrum selection of toner and the wave band that colored filtering spectrum matches, the half-wave width of emission spectrum is narrow simultaneously, just can effectual promotion LED colour gamut, high colour gamut fluoride LED adopts fluoride phosphor powder, this mode more is applicable to the machine and carries the demonstration and promotes the colour gamut, neither increase extra consumption and heat, can be applicable to the service environment of machine-carried again, contrast former LED in a poor light, LED is shaded to the tri-color lamp, LED is shaded because its luminous efficacy is low more be applicable to the replenishment and the night vision compatible part of colourity, former LED in a poor light can influence its luminous efficiency conversion condition at the in-process that collocation quantum membrane 8 used.
Sp2: manufacturing and sealing the quantum film 8;
sp3: manufacturing a first light-gathering sheet 4 and a second light-gathering sheet 10, and combining the quantum film 8 sealed in the Sp1 with the first light-gathering sheet 4 and the second light-gathering sheet 10;
sp4: manufacturing the optical filter 3 and the polaroid 2;
sp5: and carrying out sealing and isolating operation on the whole LED chip 11 display device.
In the process of packaging the LED white light, in order to make the mobile phone display screen thinner, the form of the quantum film 8 is adopted for design, because the quantum film 8 needs to isolate air in the working process, avoid the conditions of moisture, heat and the like, the quantum film 8 needs to be packaged, and the whole mobile phone display screen thickness needs not to be affected, the better light transmittance effect and the white light LED display effect are achieved, the first light focusing sheet 4 and the second light focusing sheet 10 are matched, one end face of the first light focusing sheet 4 and one end face of the second light focusing sheet 10 are both arc faces, in the design process, the arc face of the first light focusing sheet 4 is embedded in the first barrier film 5, the arc face of the second light focusing sheet 10 is embedded in the second barrier film 9, for the traditional design, only the quantum film 8 needs to be sealed, in the invention, the whole LED white light needs to be optimized, therefore, in the space-saving process, the white light effect is considered, the first light focusing sheet 5 and the first light focusing sheet 4 are used as a whole, the second barrier film 9 and the second light focusing sheet 10 are used as a whole, the light focusing sheet 10 is used as a whole, the light-isolating effect is kept, and the light-isolating effect is improved, and the traditional light-isolating protection effect is better compared with the traditional design, and the traditional light-isolating chip, and the traditional design has the protection effect.
The top and the bottom of the quantum film 8 are respectively provided with a first barrier film 5 and a second barrier film 9, the quantum film 8 is uniformly coated on the surfaces of the first barrier film 5 and the second barrier film 9 after being stirred by adopting a quantum dot material under a sealed condition, and the first barrier film 5 and the second barrier film 9 are made of PMMA materials.
Be equipped with second barrier film 10 between LED chip 11 and the second barrier film 9, and the cambered surface of second barrier film 9 inlays the concave surface in second barrier film 10, and second barrier film 9 and second barrier film 10 form a cuboid structure, the top of first barrier film 5 is equipped with first light gathering piece 4, and the cambered surface of first light gathering piece 4 inlays the concave surface in first barrier film 5, make and form the cuboid structure between first barrier film 5 and the first light gathering piece 4, first barrier film 5, the edge coating of second barrier film 9 and LED chip 11 has sealed glue 6, and sealed glue 6 is annular design, sealed glue 6 adopts the liquid glue that epoxy formed for the material, and sealed glue 6 bonds at quantum membrane 8, first barrier film 5, the edge of second barrier film 9 and LED chip 11.
First spotlight piece 4 and second spotlight piece 10, in-process that carries out work as the light emitting source through LED chip 11, with the blue light chip as the LED light emitting source, the blue light is after seeing through second spotlight piece 10, spotlight effect and the PMMA lens material of itself through second spotlight piece 10, the luminousness is high on the one hand, on the other hand spotlight can make the blue light can be abundant arouse red green light on the quantum film 8, and can not have the blue light to spread the condition that the edge disappears, after arousing red green light, red green light and the blue light that the transmission was come pass through first spotlight piece 4, first spotlight piece 4 is the same with second spotlight piece 10, fuse high luminousness and spotlight effect, form LED white light.
The bottom of the LED chip 11 is provided with a substrate 7, the bottom of the substrate 7 is provided with an organic substrate 12, the top of the first light-gathering piece 4 is provided with a light filter 3, the top of the light filter 3 is provided with a polaroid 2, the top of the polaroid 2 is provided with a screen 1, and the surfaces of the light filter 3 and the polaroid 2 are coated with sealing glue 6.
The second embodiment is as follows:
the packaging process of the quantum film 8 and the LED chip 11 is as follows:
sp1: firstly, uniformly mixing epoxy resin AB packaging glue according to a mass ratio of 1:2, then carrying out vacuum defoaming to form sealing glue 6, then injecting the sealing glue 6 into the bottom of a second polaroid 10, and carrying out constant-temperature curing for 10 hours at 80 ℃ in a vacuum drying oven to form an AB glue protective layer;
sp2: uniformly mixing the synthesized red and green light quantum dots with the proportioned AB glue, then performing vacuum defoaming, coating the mixture on a first barrier film 5 and a second barrier film 9, and curing the mixture for 12 hours at a constant temperature of 60 ℃ in a vacuum drying oven to form a quantum dot light emitting layer, namely a quantum film 8;
sp3: continuously filling AB glue into the first light-gathering sheet 4 and the second light-gathering sheet 10, and curing for 6 hours at a constant temperature of 60 ℃ in a vacuum drying oven, and integrating the first light-gathering sheet 4, the first barrier film 5, the second light-gathering sheet 10 and the second barrier film 9;
sp4: coating the integrated second polymer film 10, second barrier film 9 and LED chip 11 with sealing glue 6 at the edge, mounting on the top of the substrate 7, and curing by ultraviolet irradiation for 10 min;
sp5: coating sealing glue 6 on the edges of the integrated first light-gathering sheet 4 and the first barrier film 5, and mounting the optical filter 3;
sp6: and repeating the steps to finish the packaging of other LEDs on the strip-shaped substrate 7, and finally connecting the electrodes of each blue LED chip 11 in series through the common electrode to finish the packaging of the whole LED chip 11 and the quantum film 8 structure.
High-efficiency and stable red light quantum dots and green light quantum dots are synthesized by a high-temperature thermal synthesis method, the combination of a blue light chip and red and green quantum dots is adopted, and the luminous efficiency of a quantum dot layer is improved by improving a packaging process.
The quantum film 8 mixed with red and green quantum dots is excited by blue light emitted by a blue light LED chip 11, red light and green light are emitted and then mixed with transmitted blue light to generate white light, the high-quality red and green light quantum dots are obtained, epoxy resin sealing glue 6 is mixed, white light quantum dots generated by mixing a first light-gathering sheet 4 and a second light-gathering sheet 10 are matched, the first light-gathering sheet 4 and the second light-gathering sheet 10 are formed by modifying PMMA lenses, the light transmittance and the light mixing degree of the red, green, blue and white light in the transmission process are improved, finally the white light is displayed through an LED screen 1, the packaging process is different from the traditional packaging process, through the design of a double-layer protection structure, the quantum film 8 is sealed through a first barrier film 5 and a second barrier film 9 matched with the sealing glue 6, water and oxygen are isolated to the maximum extent, meanwhile, the LED chip 11, the second barrier film 9, the second light-gathering sheet 10 and the quantum film 8 are packaged through the sealing glue 6 in a combined mode, and the second light-gathering sheet 9 and the quantum film 10 have double-layer barrier effect, and the effect of the heat-emitting efficiency of the LED chip 11 on the light-emitting efficiency of the quantum film 8 is avoided.
The third concrete example:
except the design that the fluoride quantum film 8 combines with the LED chip 11, also can use RGB three-color lamp as the design of LED light source to improve the colour gamut of the whole display, the three-color lamp has advantages such as the chromaticity is adjustable, the colour temperature is adjustable, can do night vision compatibility, the specific way is to arrange the colored lamp of red, green, blue three kinds of colors on the PCB board, put into being shaded, three kinds of colors can mix the colour and become white light, provide the light source for the screen 1, and can also control the duty ratio of three kinds of color lamp driving voltage PWM and adjust parameters such as screen 1 colour temperature.
The backlight source is designed to be a three-color lamp, if the original screen brightness is to be maintained, the power consumption and the heat quantity are greatly increased, so that the three-color lamp can be matched with the high-brightness LED to be used, and the effects of supplementing the color gamut and adjusting the color of the screen 1 are achieved.
Can combine the design of three-color lamp with the design of fluoride LED lamp, the different scenes of adaptation are favorable to the user to pass through the difference that screen 1 shows under different environment, and adaptability is stronger.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A high-color gamut light and thin capacitive mobile phone display screen and a preparation method thereof comprise an LED chip (11) and a quantum film (8), and are characterized in that: the process of forming the white light LED by the LED chip (11) and the quantum film (8) through the screen (1) is as follows:
sp1: selecting filling materials of the LED chip (11) and the quantum film (8);
sp2: manufacturing and sealing the quantum film (8);
sp3: manufacturing a first light-gathering sheet (4) and a second light-gathering sheet (10), and combining the quantum film (8) sealed in the Sp1 with the first light-gathering sheet (4) and the second light-gathering sheet (10);
sp4: manufacturing an optical filter (3) and a polaroid (2);
sp5: and carrying out sealing and isolating operation on the whole LED chip (11) display device.
2. The high-color-gamut light-weight and thin capacitive mobile phone display screen and the preparation method thereof according to claim 1, wherein the high-color-gamut light-weight and thin capacitive mobile phone display screen comprises: the quantum film comprises a quantum film body, and is characterized in that a first barrier film (5) and a second barrier film (9) are respectively arranged at the top and the bottom of the quantum film body (8), the quantum film body (8) is uniformly coated on the surfaces of the first barrier film (5) and the second barrier film (9) after being stirred by adopting a quantum dot material under a sealed condition, and the first barrier film (5) and the second barrier film (9) are made of PMMA materials.
3. The high-color-gamut light-weight and thin capacitive mobile phone display screen and the preparation method thereof according to claim 2, wherein the high-color-gamut light-weight and thin capacitive mobile phone display screen comprises: be equipped with second spotlight piece (10) between LED chip (11) and second barrier film (9), and the cambered surface of second barrier film (9) inlays the concave surface in second spotlight piece (10), and second barrier film (9) and second spotlight piece (10) form a cuboid structure, the top of first barrier film (5) is equipped with first spotlight piece (4), and the cambered surface of first spotlight piece (4) inlays the concave surface in first barrier film (5), makes and forms the cuboid structure between first barrier film (5) and first spotlight piece (4).
4. The high-color-gamut light-weight and thin capacitive mobile phone display screen and the preparation method thereof according to claim 3, wherein the high-color-gamut light-weight and thin capacitive mobile phone display screen comprises: the edge coating of first barrier film (5), second barrier film (9) and LED chip (11) has sealed glue (6), and sealed glue (6) are the annular design, sealed glue (6) adopt epoxy to glue for the liquid glue that the material formed, and sealed glue (6) bond in the edge of quantum membrane (8), first barrier film (5), second barrier film (9) and LED chip (11).
5. The high-color-gamut light-weight and thin capacitive mobile phone display screen and the preparation method thereof according to claim 1, wherein the high-color-gamut light-weight and thin capacitive mobile phone display screen comprises: the bottom of LED chip (11) is equipped with base plate (7), organic base (12) of bottom installation of base plate (7), light filter (3) are installed at the top of first light gathering piece (4), the top installation polaroid (2) of light filter (3), polaroid (2) top installation screen (1), and the surface of light filter (3), polaroid (2) all coats and has sealed glue (6).
6. The high-color-gamut light-weight and thin capacitive mobile phone display screen and the preparation method thereof according to claim 1, wherein the high-color-gamut light-weight and thin capacitive mobile phone display screen comprises: the packaging process of the quantum film (8) and the LED chip (11) is as follows:
sp1: firstly, uniformly mixing epoxy resin AB packaging glue according to a mass ratio of 1:2, then carrying out vacuum defoaming to form sealing glue (6), then injecting the sealing glue into the bottom of a second polaroid (10), and carrying out constant-temperature curing for 10 hours at 80 ℃ in a vacuum drying oven to form an AB glue protective layer;
sp2: uniformly mixing the synthesized red and green light quantum dots with the proportioned AB glue, then defoaming in vacuum, coating the mixture in a first barrier film (5) and a second barrier film (9), and curing at a constant temperature of 60 ℃ for 12 hours in a vacuum drying oven to form a quantum dot light emitting layer, namely a quantum film (8);
sp3: continuously filling AB glue into the first light-gathering sheet (4) and the second light-gathering sheet (10), and curing for 6 hours at a constant temperature of 60 ℃ in a vacuum drying oven, so that the first light-gathering sheet (4), the first barrier film (5), the second light-gathering sheet (10) and the second barrier film (9) are combined into a whole;
sp4: coating the integrated second polaroid (10), second barrier film (9) and LED chip (11) with sealing glue (6) at the edge, mounting on the top of the substrate (7), and curing by irradiating with ultraviolet lamp for 10 min;
sp5: coating sealing glue (6) on the edges of the integrated first light-gathering sheet (4) and the first barrier film (5), and mounting the optical filter (3);
sp6: and repeating the steps to finish the packaging of other LEDs on the strip-shaped substrate (7), and finally connecting the electrodes of each blue LED chip (11) in series through a common electrode to finish the packaging of the whole LED chip (11) and the quantum film (8) structure.
CN202210731558.1A 2022-06-25 2022-06-25 High-color-gamut light and thin capacitive mobile phone display screen and preparation method thereof Pending CN115241352A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210731558.1A CN115241352A (en) 2022-06-25 2022-06-25 High-color-gamut light and thin capacitive mobile phone display screen and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210731558.1A CN115241352A (en) 2022-06-25 2022-06-25 High-color-gamut light and thin capacitive mobile phone display screen and preparation method thereof

Publications (1)

Publication Number Publication Date
CN115241352A true CN115241352A (en) 2022-10-25

Family

ID=83668723

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210731558.1A Pending CN115241352A (en) 2022-06-25 2022-06-25 High-color-gamut light and thin capacitive mobile phone display screen and preparation method thereof

Country Status (1)

Country Link
CN (1) CN115241352A (en)

Similar Documents

Publication Publication Date Title
TWI455374B (en) White light emitting diode module
CN100411202C (en) White light emitting diode
CN104145210B (en) Photo-luminescence color display
US7959312B2 (en) White light emitting device and white light source module using the same
CN100523596C (en) Light emitting apparatus, display apparatus and method for controlling light emitting apparatus
CN101216150B (en) White light emitting device and light source module for liquid crystal display backlight using the same
CN101405646A (en) White LED for backlight with phosphor plates
TW200813549A (en) Photo-luminescence color liquid crystal display
JP2011509427A (en) Display device and lighting device
WO2006033239A1 (en) Light emitting device, and back light and liquid crystal display employing it
CN101361022A (en) Polarized, multicolor led-based illumination source
CN107203064A (en) A kind of display device
CN108172677A (en) A kind of white light LED part and preparation method thereof, LED flash
CN107960115A (en) Lighting device, display device and radiovisor
CN107851420A (en) Display device and radiovisor
CN111244252A (en) Full-spectrum COB light source and manufacturing method
CN110031997A (en) Lighting device and display device
CN101572262A (en) Wide-spectrum white-light LED
CN109799647A (en) A kind of backlight and liquid crystal display die set
CN101358717A (en) LCD backlight system using white LED light source
KR101564067B1 (en) Light emitting diode display for display back light unit using matrials for improving color reproduction range
CN115241352A (en) High-color-gamut light and thin capacitive mobile phone display screen and preparation method thereof
CN102709280A (en) Chip on board (COB) integrated light source module
KR100649704B1 (en) Light emitting diode package and method for manufacturing the same
CN209658228U (en) A kind of full spectrum COB light source

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination