WO2022052310A1 - 一种紫外led激发荧光显示方法、装置和系统 - Google Patents

一种紫外led激发荧光显示方法、装置和系统 Download PDF

Info

Publication number
WO2022052310A1
WO2022052310A1 PCT/CN2020/130498 CN2020130498W WO2022052310A1 WO 2022052310 A1 WO2022052310 A1 WO 2022052310A1 CN 2020130498 W CN2020130498 W CN 2020130498W WO 2022052310 A1 WO2022052310 A1 WO 2022052310A1
Authority
WO
WIPO (PCT)
Prior art keywords
led lamp
ultraviolet led
fluorescent film
fluorescent
light
Prior art date
Application number
PCT/CN2020/130498
Other languages
English (en)
French (fr)
Inventor
吴涵渠
Original Assignee
深圳市奥拓电子股份有限公司
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 深圳市奥拓电子股份有限公司 filed Critical 深圳市奥拓电子股份有限公司
Publication of WO2022052310A1 publication Critical patent/WO2022052310A1/zh

Links

Classifications

    • 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
    • H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
    • H01L25/16—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits
    • H01L25/167—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits comprising optoelectronic devices, e.g. LED, photodiodes

Definitions

  • the invention belongs to the technical field of LED display, and in particular relates to a method, a device and a system for fluorescent display excited by an ultraviolet LED.
  • LED displays use three-color red, green, and blue visible wavelength LEDs to emit light directly, and use PWM modulation technology to control pixel color grayscale.
  • Both liquid crystal display and plasma display use red, green and blue LEDs to emit light directly and modulated by PWM.
  • the PWM modulated LED light source can bring about the problem of high and low frequency flicker, which can damage the human visual system. Since at least three different LED chips need to be used to emit light, in Mini LED or Micro The LED production process will bring great difficulties, and it is difficult to reduce the production yield and cost. In the production process of Micro LED displays that need to use three different LED chips to emit light, the mass transfer of Micro LEDs is extremely difficult, and the production yield and cost remain high.
  • the purpose of the present application is to provide an ultraviolet LED excited fluorescent display method, device and system to solve the above technical problems.
  • An embodiment of the present application provides an ultraviolet LED-excited fluorescent display method, the method comprising:
  • a plurality of ultraviolet LED lamp beads are fixedly arranged on the upper surface of the LED lamp bead substrate in a crisscross pattern;
  • the plurality of ultraviolet LED lamp beads are vertically arranged with light-shielding structures, so that the plurality of ultraviolet LED lamp beads are isolated from each other by the light-shielding structure;
  • the color fluorescent film is divided into regional color fluorescent films, and each of the regional color fluorescent films corresponds to the pixel area of each of the ultraviolet LED lamp beads, so that the regional color fluorescent films are arranged vertically
  • the light-blocking structure corresponds to the pixel area one by one;
  • the plurality of ultraviolet LED lamp beads emit light at the same time, and simultaneously excite the colored fluorescent films in the regions separated by the light-shielding structure;
  • the excitation intensity of the plurality of ultraviolet LED lamp beads is controlled by PWM modulation.
  • the regional color fluorescent film includes: a red fluorescent film area, a green fluorescent film area, a blue fluorescent film area, and a cyan fluorescent film area; one of the red fluorescent film area, one of the green fluorescent film area, one of the The blue fluorescent film area and one of the cyan fluorescent film areas are adjacent to each other, and are isolated from each other by the light-shielding structure to form a four-in-one light-emitting unit.
  • the plurality of ultraviolet LED lamp beads are fixedly arranged on the upper surface of the LED lamp bead substrate in a crisscross pattern, and are fixedly arranged on the upper surface of the LED lamp bead substrate at equal intervals;
  • the light-shielding structures are arranged vertically among the plurality of ultraviolet LED lamp beads, and the light-shielding structures are vertically arranged at the position of the slit in the distance between the plurality of ultraviolet LED lamp beads.
  • the ultraviolet LED excited fluorescent display device includes:
  • Ultraviolet LED lamp beads are used to excite the color fluorescent film and make the color fluorescent film emit light
  • the fluorescent film substrate is used to fix the color fluorescent film
  • the color fluorescent film is divided into several regional color fluorescent films, and the regional color fluorescent films are divided into a red fluorescent film area, a green fluorescent film area, a blue fluorescent film area, and a cyan fluorescent film area.
  • the plurality of ultraviolet LED lamp beads emit light simultaneously to generate red, green, blue, and cyan visible light for display;
  • a light-blocking structure for dividing the color fluorescent film into the plurality of regional color fluorescent films, and for preventing the ultraviolet LED lamp beads from erroneously exciting the adjacent regional color fluorescent films to emit light;
  • the LED lamp bead substrate is used to fix and arrange a plurality of the ultraviolet LED lamp beads
  • the pixel area is the space area enclosed by each UV LED lamp bead in the regional color fluorescent film, the light-shielding structure and the LED lamp bead substrate;
  • a plurality of ultraviolet LED lamp beads are fixedly arranged on the upper surface of the LED lamp bead substrate in a criss-cross pattern, the plurality of ultraviolet LED lamp beads have a vertical light-shielding structure between each other, and the plurality of ultraviolet LED lamp beads pass through the light-shielding structure.
  • the structure is isolated from each other, and a color fluorescent film is connected on the plurality of ultraviolet LED lamp beads.
  • the color fluorescent film is divided into a number of regional color fluorescent films, and each of the regional color fluorescent films is correspondingly connected to each of the ultraviolet LED lamps.
  • the pixel regions of the beads correspond to each other, and the colored fluorescent films of the regions correspond to the pixel regions one by one; the colored fluorescent film is connected to a fluorescent film substrate, and the upper surface of the light-shielding structure is connected to the lower surface of the fluorescent film substrate.
  • a light-shielding structure is arranged between the pixel regions of the ultraviolet LED lamp beads, the lower end of the light-shielding structure is connected to the LED lamp bead substrate, and the upper end of the light-shielding structure is connected to the fluorescent film substrate.
  • a first fluorescent material is coated under the fluorescent film substrate, and/or a second fluorescent material is coated on the lower end of the regional color fluorescent film, the first fluorescent material and/or the second fluorescent material is
  • the second fluorescent material includes quantum dot fluorescent material.
  • An embodiment of the present application further provides an ultraviolet LED excited fluorescent display module, characterized in that the module includes: a PCB board, an ultraviolet LED lamp bead, and a PWM drive chip, and the LED lamp bead is fixed on the top of the PCB board.
  • a substrate, an ultraviolet LED lamp bead is fixedly arranged on the LED lamp bead substrate, and a plurality of the ultraviolet LED lamp beads are provided with a colored fluorescent film, and the colored fluorescent film is divided into several regional colored fluorescent films by a light-shielding structure.
  • the regional color fluorescent film is divided into a red fluorescent film area, a green fluorescent film area, a blue fluorescent film area, and a cyan fluorescent film area.
  • the fluorescent film substrate is fixed on the top of the color fluorescent film, and a number of the ultraviolet LED lamp beads are crisscrossed.
  • the ground is fixedly arranged on the upper surface of the LED lamp bead substrate, and a PWM drive chip is fixed on one side of the PCB board.
  • An embodiment of the present application further provides an ultraviolet LED-excited fluorescent display screen, which is used to realize the ultraviolet LED-excited fluorescent display method described in any embodiment of the present application.
  • An embodiment of the present application further provides an ultraviolet LED-excited fluorescent display system, which is used to realize the ultraviolet LED-excited fluorescent display method described in any embodiment of the present application.
  • the present application provides an ultraviolet LED excitation fluorescent display method, device and system.
  • the colored fluorescent film emits visible light in four colors of red, green, blue and cyan, and has a clear structure.
  • the application of the present invention has the beneficial effect of adding a low-pass filter between the PWM excitation light source of the ultraviolet LED lamp bead and the luminescence of the fluorescent material through the afterglow effect of the color fluorescent film and the fluorescent material coated therewith, which can greatly improve the It reduces or even eliminates the high and low frequency flickering phenomenon of the LED display screen, improves the visual comfort of people, and has the beneficial effect of greatly improving the high-definition display quality and visual experience of the LED display screen.
  • the application of the present invention has a simple structure, which is beneficial to realize the transfer of giant groups of Micro LED lamp beads.
  • FIG. 1 is a flowchart of an ultraviolet LED-excited fluorescent display method according to an embodiment of the present application
  • FIG. 2 is a schematic front view of an ultraviolet LED-excited fluorescent display device according to an embodiment of the present application
  • FIG. 3 is a schematic diagram of the backside of an ultraviolet LED excited fluorescent display device according to an embodiment of the present application.
  • FIG. 4 is a schematic top view of a four-in-one single UV LED-excited fluorescent display device according to an embodiment of the present application
  • FIG. 5 is a schematic diagram of an area color fluorescent film of an ultraviolet LED-excited fluorescent display device according to an embodiment of the present application.
  • fluorescent film substrate 1 color fluorescent film 2, light-shielding structure 3, ultraviolet LED lamp bead 4a, ultraviolet LED lamp bead 4b, ultraviolet LED lamp bead 4c, ultraviolet LED lamp bead 4d, LED lamp bead substrate 5.
  • the purpose of the present application is to provide an ultraviolet LED excitation fluorescent display method, device and system, so as to solve the high and low frequency flicker caused by the PWM-modulated LED light source, damage the human visual system and use at least three different LED chips due to the need Light emission leads to technical problems such as high production yield and cost in the production process of Mini LED or Micro LED, and extremely difficult mass transfer.
  • the application of the present invention uses several identical ultraviolet LED lamp beads as the excitation light source, and emits red, green, blue and cyan visible light through the colored fluorescent film, which has the beneficial effects of clear structure, simple manufacture and controllable quality; It reduces or even eliminates the high and low frequency flickering phenomenon of the LED display screen, improves the visual comfort of people, and greatly improves the high-definition display quality and visual experience of the LED display screen.
  • Mini LED especially the LED display with ultra-small dot pitch such as Micro LED, it also has the beneficial effect of greatly improving the convenience of mass production and reducing the production cost.
  • FIG. 1 is a flowchart of an ultraviolet LED-excited fluorescent display method according to an embodiment of the present invention
  • the ultraviolet LED-excited fluorescent display method includes:
  • Step S110 a plurality of ultraviolet LED lamp beads are fixedly arranged on the upper surface of the LED lamp bead substrate in a crisscross pattern;
  • step S120 light-shielding structures are vertically arranged between the plurality of ultraviolet LED lamp beads, so that the plurality of ultraviolet LED lamp beads are isolated from each other by the light-shielding structure;
  • This step can avoid mutual interference between the ultraviolet light emitted by the ultraviolet LED lamp beads
  • Step S122 arranging a colored fluorescent film on the plurality of ultraviolet LED lamp beads
  • Step S130 Divide regional color fluorescent films on the color fluorescent film, and each of the regional color fluorescent films corresponds to the pixel area of each of the ultraviolet LED lamp beads, so that the regional color fluorescent films pass through.
  • the vertically arranged light-blocking structures correspond to the pixel regions one by one;
  • the pixel area is the space area enclosed by the color fluorescent film, light-shielding structure and LED lamp bead substrate of each ultraviolet LED lamp bead;
  • the color fluorescent film is laid on the light-shielding structure to make the light-shielding structure Embedded in the color fluorescent film, the upper surface of the area color fluorescent film is flush, so that the area color fluorescent film corresponds to the corresponding pixel area and the ultraviolet LED lamp beads in the area one by one through the vertically arranged light-shielding structure;
  • Step S132 arranging a fluorescent film substrate on the color fluorescent film
  • Step S140 airtightly connecting the upper surface of the light-shielding structure to the lower surface of the fluorescent film substrate;
  • Step S150 the plurality of ultraviolet LED lamp beads emit light at the same time, and simultaneously excite the colored fluorescent films in the regions separated by the light-shielding structure;
  • the plurality of ultraviolet LED lamp beads simultaneously excite the color fluorescent film, so that the color fluorescent film emits light, and each of the ultraviolet LED lamp beads correspondingly excites the one-by-one corresponding regional color fluorescent film, so that all the color fluorescent films are excited.
  • the color fluorescent film emits corresponding monochromatic light;
  • Step S160 controlling the excitation intensity of the plurality of ultraviolet LED lamp beads through PWM modulation.
  • the monochromatic fluorescent film area includes a red fluorescent film area, a green fluorescent film area, a blue fluorescent film area, and a cyan fluorescent film area; one of the red fluorescent film area, one of the green fluorescent film The region, one of the blue fluorescent film regions, and one of the cyan fluorescent film regions are connected to each other, and are isolated from each other by the light-shielding structure to form a four-in-one light-emitting unit;
  • the area color fluorescent film includes: a red fluorescent film area, a green fluorescent film area, a blue fluorescent film area, and a cyan fluorescent film area; one of the red fluorescent film area, one of the green fluorescent film area
  • the fluorescent film area, one of the blue fluorescent film areas, and one of the cyan fluorescent film areas are adjacent to each other, and are isolated from each other by the light-shielding structure to form a four-in-one light-emitting unit.
  • Each four-in-one light-emitting unit includes four UV LED lamp beads.
  • Each of the four-in-one light-emitting units corresponds to one of the regional color fluorescent films;
  • the plurality of ultraviolet LED lamp beads are fixedly arranged on the upper surface of the LED lamp bead substrate in a crisscross pattern, and are fixedly arranged on the upper surface of the LED lamp bead substrate at equal intervals;
  • the light-shielding structures are arranged vertically among the plurality of ultraviolet LED lamp beads, and the light-shielding structures are vertically arranged at the position of the gap between the plurality of ultraviolet LED lamp beads;
  • the four-in-one light-emitting unit is square or rectangular.
  • FIG. 2 is a schematic front view of an ultraviolet LED-excited fluorescent display device according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a rear surface of the ultraviolet LED-excited fluorescent display device according to an embodiment of the present invention
  • UV LED-excited fluorescent display devices including:
  • the ultraviolet LED lamp beads 4 are used to excite the color fluorescent film 2 to make the color fluorescent film 2 emit light;
  • a plurality of ultraviolet LED lamp beads 4 emit light at the same time, and the color fluorescent film 2 is simultaneously excited respectively; for example, in FIG. 2, the ultraviolet LED lamp beads 4a excite the red fluorescent film region 2a in the color fluorescent film 2, and the ultraviolet LED lamp beads 4b Excite the green fluorescent film region 2b in the color fluorescent film 2; in FIG.
  • the ultraviolet LED lamp beads 4c excite the blue fluorescent film region 2c in the color fluorescent film 2
  • the ultraviolet LED lamp beads 4d excite the cyan fluorescent film in the color fluorescent film 2 Film area 2d
  • UV LED lamp beads 4a, UV LED lamp beads 4b, UV LED lamp beads 4c, and UV LED lamp beads 4d emit light at the same time, and simultaneously excite the red fluorescent film area 2a, the green fluorescent film area 2b, and the blue fluorescent film area 2c
  • the color fluorescent film 2 in the cyan fluorescent film area 2d emits light, so that the color fluorescent films 2 in the red fluorescent film area 2a, green fluorescent film area 2b, blue fluorescent film area 2c, and cyan fluorescent film area 2d emit corresponding red, Green, blue and cyan visible light
  • each four-in-one light-emitting unit includes four ultraviolet LED lamp beads 4, and the corresponding red fluorescent film area 2a, green fluorescent film area 2b, blue fluorescent film area 2c, cyan fluorescent film area Colored fluorescent film 2 in area 2d;
  • the color fluorescent film 2 is divided into several regional color fluorescent films, and the regional color fluorescent films are divided into a red fluorescent film area 2a, a green fluorescent film area 2b, a blue fluorescent film area 2c, and a cyan fluorescent film area 2d.
  • the film 2 is used to generate red, green, blue, and cyan visible light for display by being excited by the ultraviolet LED lamp beads 4; each four-in-one light-emitting unit corresponds to a regional color fluorescent film; each regional color fluorescent film includes red The color fluorescent film 2 of the fluorescent film area 2a, the green fluorescent film area 2b, the blue fluorescent film area 2c, and the cyan fluorescent film area 2d;
  • the light-blocking structure 3 is used to divide the color fluorescent film 2 into the plurality of regional color fluorescent films, and is also used to prevent the ultraviolet LED lamp beads 4 from erroneously exciting the adjacent color fluorescent films to emit light;
  • the LED lamp bead substrate 5 is used to fixedly arrange a plurality of ultraviolet LED lamp beads 4;
  • the pixel area is the space area enclosed by each ultraviolet LED lamp bead in the area color fluorescent film, the light-blocking structure 3 and the LED lamp bead substrate 5 .
  • a plurality of ultraviolet LED lamp beads 4 are fixedly arranged on the upper surface of the LED lamp bead substrate 5 in a criss-cross pattern.
  • the plurality of ultraviolet LED lamp beads 4 have a vertical light-shielding structure 3 between each other.
  • the light-shielding structures 3 are isolated from each other, and the color fluorescent films 2 are connected to the plurality of ultraviolet LED lamp beads 4.
  • the color fluorescent films 2 are divided into several regional color fluorescent films, and each of the regional color fluorescent films corresponds to Corresponding to the pixel areas of each of the ultraviolet LED lamp beads 4 respectively, the color fluorescent film of the area corresponds to the pixel area one by one; the color fluorescent film 2 is connected to the fluorescent film substrate 1, and the light-shielding structure 3.
  • the upper surface is airtightly connected to the lower surface of the fluorescent film substrate 1.
  • Bottom 5 the upper end of the light shielding structure 3 is connected to the fluorescent film substrate 1 .
  • FIG. 4 is a schematic top view of a four-in-one single UV LED-excited fluorescent display device according to an embodiment of the present invention; in some embodiments, the color fluorescent film 2 is divided into several regions. , the color fluorescent film in each area corresponds to the pixel area where each of the ultraviolet LED lamp beads 4 is located; there is a light-shielding structure 3 that is transparent from top to bottom and isolated from left to right between the pixel areas; as shown in Figure 2 As shown in FIG. 3 , the lower end of the light shielding structure 3 is connected to the LED lamp bead substrate 5 , and the upper end of the light shielding structure 3 is connected to the fluorescent film substrate 1 . As shown in FIG.
  • each four-in-one light-emitting unit corresponds to four pixel areas.
  • the ultraviolet LED lamp bead 4a, the ultraviolet LED lamp bead 4b, the ultraviolet LED lamp bead 4c, and the ultraviolet LED lamp bead 4d correspond to four pixel areas.
  • the areas correspond to the red fluorescent film area 2a, the green fluorescent film area 2b, the blue fluorescent film area 2c, and the cyan fluorescent film area 2d respectively; each area of the color fluorescent film corresponds to four pixel areas, and the four pixel areas correspond to the red fluorescent film respectively.
  • FIG. 5 is a schematic diagram of an area color fluorescent film of an ultraviolet LED-excited fluorescent display device according to an embodiment of the present invention
  • one area color fluorescent film in the color fluorescent film 2 corresponds to a four-in-one light-emitting unit, and the area
  • the color fluorescent film is divided into a red fluorescent film area 2a, a green fluorescent film area 2b, a blue fluorescent film area 2c, and a cyan fluorescent film area 2d by the light blocking structure 3; the light blocking structure 3 is also used to divide the color fluorescent film of each area.
  • the ultraviolet LED lamp bead 4b in order to avoid the occurrence of red, green, blue and blue visible light between the four-in-one light-emitting units excited by the ultraviolet LED lamp bead 4a, the ultraviolet LED lamp bead 4b, the ultraviolet LED lamp bead 4c, and the ultraviolet LED lamp bead 4d. interference.
  • a first fluorescent material is coated under the fluorescent film substrate 1 , and/or a first fluorescent material is coated on the upper end of the pixel region of the ultraviolet LED lamp bead 4 .
  • Two fluorescent materials, the first fluorescent material and/or the second fluorescent material include quantum dot fluorescent materials.
  • quantum dot fluorescent materials the excitation light of any wavelength can be customized.
  • the light emitted by the ultraviolet LED lamp beads excited by the color fluorescent film can be set to any arbitrary wavelength by the first fluorescent material and/or the second fluorescent material. wavelength, which emits red, green, blue, or cyan light.
  • the red fluorescent film area 2a, the green fluorescent film area 2b, the blue fluorescent film area 2c, and the cyan fluorescent film area 2d respectively correspond to the first fluorescent material and the second fluorescent material are completely the same.
  • This embodiment is simple and easy to implement. Four kinds of visible light can be emitted by using quantum dot fluorescent materials, which is beneficial to reduce product cost, improve production efficiency, and make the mass production and transfer of Mini LED or Micro LED more convenient and fast. Process difficulty.
  • the first fluorescent material and/or the second fluorescent material may also be partially or completely selected from fluorescent materials that can be excited to a specific color and the quantum dot fluorescent materials;
  • the fluorescent materials excited to a specific color include: Y2O2S: Eu, Mg, Ti or CaSrS for red; ZnS: Cu, Cl or SrAl2O4: Eu, Dy for green; Sr4Al14O25: Eu, Dy for blue; or CaAl2O4 : Eu, Nd;
  • the fluorescent material that can be excited to a specific color and the quantum dot fluorescent material can be used simultaneously as the first fluorescent material and/or the second fluorescent material; for example, Y2O2S can be selected for the red fluorescent film region 2a : Eu, Mg, green fluorescent film area 2b can choose ZnS: Cu, Cl or SrAl2O4: Eu, Dy; blue fluorescent film area 2c can choose Sr4Al14O25: Eu, Dy; or CaAl2O4: Eu, Nd; and cyan fluorescent film
  • the quantum dot fluorescent material can be selected for the region 2d, and the wavelength can be adjusted by the quantum dot fluorescent material. As shown in FIG. 2 , FIG. 3 and FIG.
  • the red fluorescent film area 2a , the green fluorescent film area 2b , the blue fluorescent film area 2c , and the cyan fluorescent film area 2d correspond to the first fluorescent material used and the second fluorescent film used respectively.
  • the two fluorescent materials are exactly the same; for example, when the first fluorescent material in the cyan fluorescent film region 2d is a quantum dot fluorescent material, if the cyan fluorescent film region 2d also corresponds to a second fluorescent material, the second fluorescent material can only be For the same quantum dot fluorescent material, and set to emit cyan light wavelength.
  • the application of the present invention has the beneficial effect of adding a low-pass filter between the PWM excitation light source of the ultraviolet LED lamp bead and the luminescence of the fluorescent material through the afterglow effect of the color fluorescent film and the fluorescent material coated therewith, which can greatly improve the Reducing or even eliminating the high and low frequency flickering phenomenon of the LED display screen has the beneficial effect of greatly improving the high-definition display quality and visual experience of the LED display screen.
  • the second fluorescent material may have various specific applications.
  • the second fluorescent material may be used to filter out the transmitted light in the ultraviolet wavelength band, by
  • the preset wavelength band is the ultraviolet light band, which enables the upper layer of the color fluorescent film 2 to filter out ultraviolet light, and on the one hand, it can reduce the intensity of ultraviolet light to achieve the effect of reducing the damage to human eyes, and has the effect of avoiding long-term ultraviolet light.
  • the application of the present invention also provides an ultraviolet LED excitation fluorescent display module, the module comprising:
  • the module includes: a PCB board (not shown in the figure), an ultraviolet LED lamp bead 4, a PWM drive chip (not shown in the figure), and the top of the PCB board is fixed on the LED Lamp bead substrate 5, on the LED lamp bead substrate 5, ultraviolet LED lamp beads 4 are fixedly arranged, a plurality of the ultraviolet LED lamp beads are provided with colored fluorescent films, and the colored fluorescent film 2 is divided into several The area color fluorescent film is divided into a red fluorescent film area 8a, a green fluorescent film area 8b, a blue fluorescent film area 8c, and a cyan fluorescent film area 8d.
  • the top of the color fluorescent film 2 is fixed with a fluorescent film lining Bottom 1
  • a plurality of the ultraviolet LED lamp beads 4 are fixedly arranged on the upper surface of the LED lamp bead substrate 5 in a crisscross pattern, and a PWM driving chip is fixed on one side of the PCB board.
  • ultraviolet LED lamp beads 4a, ultraviolet LED lamp beads 4b, ultraviolet LED lamp beads 4c, and ultraviolet LED lamps are arranged vertically and horizontally and are equidistantly adjacent to each other.
  • the beads 4d respectively correspond to the four vertically and horizontally arranged red fluorescent film regions 8a, green fluorescent film regions 8b, blue fluorescent film regions 8c, and cyan fluorescent film regions 8d adjacent to each other at equal distances on the upper part; one of the red fluorescent film regions
  • the area 8a, the green fluorescent film area 8b, the blue fluorescent film area 8c, and the cyan fluorescent film area 8d are connected to each other, and are isolated from each other by the light-shielding structure 3, forming a four-in-one structure.
  • Light-emitting unit 9 a plurality of the four-in-one light-emitting units 9 are arranged in a matrix on the same plane; screws are fixed inside the PCB board, and the screws are provided with a plurality of them, and a PWM drive chip is fixed on one side of the PCB board ; In some embodiments, at least one of the PWM drive chips is included, and at least one of the PWM drive chips is arranged at equal distances.
  • the present application also provides an ultraviolet LED-excited fluorescent display screen, which is used to realize the ultraviolet LED-excited fluorescent display method described in any embodiment of the present application.
  • the ultraviolet LED-excited fluorescent display screen described in the present application further includes the ultraviolet LED-excited fluorescent display device described in any one of the present application.
  • An embodiment of the present application further provides an ultraviolet LED-excited fluorescent display system, and the ultraviolet LED-excited fluorescent display system is used to realize the ultraviolet LED-excited fluorescent display method described in any embodiment of the present invention; specifically The ultraviolet LED-excited fluorescent display system described in the present application further includes the ultraviolet LED-excited fluorescent display device described in any one of the present application.
  • the system includes implementing the step of any embodiment of the present invention to control the excitation intensity of the plurality of ultraviolet LED lamp beads by means of PWM modulation.
  • An embodiment of the present application further provides a storage medium on which a computer program is stored, wherein the computer program, when executed by a processor, is used to implement the ultraviolet LED excited fluorescent display method described in any embodiment of the present invention ;
  • the storage medium includes the steps for realizing the ultraviolet LED excited fluorescent display method according to any embodiment of the present invention to control the excitation intensity of the plurality of ultraviolet LED lamp beads by means of PWM modulation.
  • Embodiments of the present application further provide an electronic device, including a processor and a machine-readable storage medium, where the machine-readable storage medium stores machine-executable instructions that can be executed by the processor, and when called by the processor and When executed, the processor can execute the instructions to prompt the processor to: implement the ultraviolet LED-excited fluorescent display method described in any embodiment of the present application.
  • the integrated components/modules/units of the system/computer device if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the present invention can implement all or part of the processes in the methods of the above embodiments, and can also be completed by instructing relevant hardware through a computer program, and the computer program can be stored in a computer-readable storage medium, and the When the computer program is executed by the processor, the steps of the above-mentioned various method embodiments can be implemented.
  • the computer program includes computer program code
  • the computer program code may be in the form of source code, object code, executable file or some intermediate form, and the like.
  • the computer-readable storage medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer memory, a read-only memory (ROM, Read-Only Memory) ), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium, etc.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • electric carrier signal telecommunication signal and software distribution medium, etc.
  • each functional module/component in each embodiment of the present invention may be integrated in the same processing module/component, or each module/component may exist physically alone, or two or more modules/components may be integrated in the same processing module/component. in the module/component.
  • the above-mentioned integrated modules/components may be implemented in the form of hardware, or may be implemented in the form of hardware plus software function modules/components.

Abstract

一种紫外LED激发荧光显示装置，包括：紫外LED灯珠（4），彩色荧光膜（2），隔光结构（3），LED灯珠衬底（5）；紫外LED灯珠（4）激发彩色荧光膜（2）发光；隔光结构（3）隔绝临近的紫外LED灯珠（4）的干扰；通过PWM调制方式控制紫外LED灯珠（4）的激发强度；LED灯珠衬底（5）隔绝紫外LED灯珠（4）之间的相互干扰。彩色荧光膜（2）及其涂敷的荧光材料发光的余辉效应，具有达到在紫外LED灯珠（4）的PWM激发光源到荧光材料发光之间，增加了一个低通滤波器的有益效果，可以减少甚至消除LED显示屏的高低频闪烁现象，从而大幅度提高LED显示屏高清晰度显示的作用。

Description

一种紫外LED激发荧光显示方法、装置和系统
本申请要求于2020年9月9日在中国专利局提交的、申请号为202010942161.8的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明属于LED显示技术领域，具体涉及一种紫外LED激发荧光显示方法、装置和系统。
 背景技术
现有LED显示屏使用三色红、绿、蓝可见光波长LED直接发光，并利用PWM调制技术控制像素颜色灰度。液晶显示和等离子显示均采用红、绿、蓝LED直接发光，并通过PWM调制的光源。PWM调制的LED光源，可以带来高低频闪烁的问题，对人的视觉系统带来损害。由于至少需要使用到三种不同的LED芯片发光，在Mini LED或Micro LED生产过程中会带来很大困难，生产良率和成本难以下降。在需要使用三种不同的LED芯片发光的Micro LED显示屏的生产过程中，Micro LED的巨量转移难度极大，生产良率和成本都居高不下。
 技术问题
本发明申请的目的在于提供一种紫外LED激发荧光显示方法、装置和系统，以解决上述技术问题。
 技术解决方案
为了实现上述目的，本发明采用如下技术方案：
本发明申请一实施例提供了一种紫外LED激发荧光显示方法，所述方法包括：
若干紫外LED灯珠纵横交错地固定布置在LED灯珠衬底上表面；
所述若干紫外LED灯珠相互之间竖直布置隔光结构，使所述若干紫外LED灯珠之间通过所述隔光结构相互隔绝；
在所述若干紫外LED灯珠上布设彩色荧光膜；
在所述彩色荧光膜上划分区域彩色荧光膜，每个所述区域彩色荧光膜相应地分别与每个所述紫外LED灯珠的像素区域互相对应，使所述区域彩色荧光膜通过竖直布置的所述隔光结构与所述像素区域逐一对应；
在所述彩色荧光膜上布设荧光膜衬底；
将所述隔光结构上表面与所述荧光膜衬底的下表面密闭连接；
所述若干紫外LED灯珠同时发光，分别同时激发被所述隔光结构分隔的所述区域彩色荧光膜；
通过PWM调制方式控制所述若干紫外LED灯珠的激发强度。
优选地，所述区域彩色荧光膜包括：红色荧光膜区域、绿色荧光膜区域、蓝色荧光膜区域、青色荧光膜区域；一个所述红色荧光膜区域、一个所述绿色荧光膜区域、一个所述蓝色荧光膜区域、一个所述青色荧光膜区域之间相互临接，通过所述隔光结构相互隔绝，形成四合一发光单元。
优选地，所述若干紫外LED灯珠纵横交错地固定布置在所述LED灯珠衬底上表面，是等间距地固定布置在在所述LED灯珠衬底上表面；
所述若干紫外LED灯珠相互之间竖直布置隔光结构，是在若干紫外LED灯珠相互之间的间距中缝位置竖直布置所述隔光结构。
优选地，所述紫外LED激发荧光显示装置，包括：
紫外LED灯珠，用以激发彩色荧光膜，使彩色荧光膜发光；
荧光膜衬底，用以固定彩色荧光膜；
彩色荧光膜，划分为若干区域彩色荧光膜，所述区域彩色荧光膜分为红色荧光膜区域、绿色荧光膜区域、蓝色荧光膜区域、青色荧光膜区域，所述彩色荧光膜用以通过受到所述若干紫外LED灯珠同时发光激发产生红、绿、蓝、青四色可见光以供显示；
隔光结构，用以将所述彩色荧光膜划分为所述若干区域彩色荧光膜，还用以阻止所述紫外LED灯珠错误激发临接的所述区域彩色荧光膜发光；
LED灯珠衬底，用以固定布置若干所述紫外LED灯珠；
像素区域，是每个紫外LED灯珠在区域彩色荧光膜、隔光结构和LED灯珠衬底合围的空间区域；
若干紫外LED灯珠纵横交错地固定布置在LED灯珠衬底上表面，所述若干紫外LED灯珠相互之间有竖直隔光结构，所述若干紫外LED灯珠之间通过所述隔光结构相互隔绝，在所述若干紫外LED灯珠上连接彩色荧光膜，所述彩色荧光膜划分为若干区域彩色荧光膜，每个所述区域彩色荧光膜相应地分别与每个所述紫外LED灯珠的像素区域互相对应，所述区域彩色荧光膜与所述像素区域逐一对应；所述彩色荧光膜上连接荧光膜衬底，所述隔光结构上表面与所述荧光膜衬底的下表面密闭连接，所述紫外LED灯珠的像素区域之间有隔光结构，所述隔光结构的下端连接所述LED灯珠衬底，所述隔光结构的上端连接所述荧光膜衬底。
优选地，所述荧光膜衬底下方涂覆第一荧光材料，和/或，在所述区域彩色荧光膜的下端端涂覆第二荧光材料，所述第一荧光材料和/或所述第二荧光材料包括量子点荧光材料。
本发明申请一实施例还提供了一种紫外LED激发荧光显示模组，其特征在于，所述模组包括：PCB板、紫外LED灯珠、PWM驱动芯片，所述PCB板顶部固定LED灯珠衬底，所述LED灯珠衬底上固定布置紫外LED灯珠，若干所述紫外LED灯珠上有彩色荧光膜，所述彩色荧光膜通过隔光结构划分为若干区域彩色荧光膜，所述区域彩色荧光膜分为红色荧光膜区域、绿色荧光膜区域、蓝色荧光膜区域、青色荧光膜区域，所述彩色荧光膜顶部固定有荧光膜衬底，若干所述紫外LED灯珠呈纵横交错地固定布置在LED灯珠衬底上表面，所述PCB板一侧固定有PWM驱动芯片。
本发明申请一实施例还提供了一种紫外LED激发荧光显示屏，用于实现本发明申请任一实施例所述的紫外LED激发荧光显示方法。
本发明申请一实施例还提供了一种紫外LED激发荧光显示系统，用于实现本发明申请任一实施例所述的紫外LED激发荧光显示方法。
 有益效果
本发明申请提供的一种紫外LED激发荧光显示方法、装置和系统，通过使用若干同样的紫外LED灯珠作为激发光源，通过彩色荧光膜发出红、绿、蓝、青四色可见光，具有结构清晰、制造简单、质量可控的有益效果；对于Mini  LED,尤其是Micro LED等超小点间距的LED显示屏，还具有带来大幅度提高量产便利，促使生产成本下降的有益效果。本发明申请通过彩色荧光膜及其涂敷的荧光材料发光的余辉效应，使紫外LED灯珠的PWM激发光源到荧光材料发光之间，具有增加了一个低通滤波器的有益效果，可以大幅度减少甚至消除LED显示屏的高低频闪烁现象，提高了人的视觉舒适度，具有大幅度提高LED显示屏高清晰度显示质量和视觉感受的有益效果。本发明申请结构简单，有利于实现Micro LED灯珠的巨群转移。
 附图说明
图1为本发明申请一实施例的紫外LED激发荧光显示方法的流程图；
图2为本发明申请一实施例的紫外LED激发荧光显示装置的正面示意图；
图3为本发明申请一实施例的紫外LED激发荧光显示装置的背面示意图；
图4为本发明申请一实施例的紫外LED激发荧光显示装置的四合一单一的俯视示意图；
图5为本发明申请一实施例的紫外LED激发荧光显示装置的区域彩色荧光膜示意图；
上述图中标号：荧光膜衬底1，彩色荧光膜2，隔光结构3，紫外LED灯珠4a，紫外LED灯珠4b，紫外LED灯珠4c，紫外LED灯珠4d，LED灯珠衬底5，红色荧光膜区域2a、绿色荧光膜区域2b、蓝色荧光膜区域2c、青色荧光膜区域2d。
 本发明的实施方式
为了能够更清楚地理解本发明的上述目的、特征和优点，下面结合附图和具体实施方式对本发明进行详细描述。需要说明的是，在不冲突的情况下，本申请的实施方式及实施方式中的特征可以相互组合。除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施方式的目的，不是旨在限制本发明。
本发明申请的目的在于提供一种紫外LED激发荧光显示方法、装置和系统，以解决PWM调制的LED光源引发的高低频闪烁，损害人的视觉系统和由于需要使用到至少三种不同的LED芯片发光，导致在Mini LED或Micro LED生产过程中生产良率和成本高，且巨量转移难度极大的技术问题。本发明申请通过使用若干同样的紫外LED灯珠作为激发光源，通过彩色荧光膜发出红、绿、蓝、青四色可见光，具有结构清晰、制造简单、质量可控的有益效果；具有可以大幅度减少甚至消除LED显示屏的高低频闪烁现象，提高了人的视觉舒适度，大幅度提高LED显示屏高清晰度显示质量和视觉感受的有益效果。对于Mini  LED,尤其是Micro LED等超小点间距的LED显示屏，还具有带来大幅度提高量产便利，促使生产成本下降的有益效果。
请参阅图1，图1为本发明一实施例的紫外LED激发荧光显示方法的流程图；所述紫外LED激发荧光显示方法，包括：
步骤S110、若干紫外LED灯珠纵横交错地固定布置在LED灯珠衬底上表面；
步骤S120、所述若干紫外LED灯珠相互之间竖直布置隔光结构，使所述若干紫外LED灯珠之间通过所述隔光结构相互隔绝；
该步骤可以避免紫外LED灯珠发出的紫外光相互干扰；
步骤S122、在所述若干紫外LED灯珠上布设彩色荧光膜；
步骤S130、在所述彩色荧光膜上划分区域彩色荧光膜，每个所述区域彩色荧光膜相应地分别与每个所述紫外LED灯珠的像素区域互相对应，使所述区域彩色荧光膜通过竖直布置的所述隔光结构与所述像素区域逐一对应；
具体而言，像素区域是每个紫外LED灯珠在区域彩色荧光膜、隔光结构和LED灯珠衬底合围的空间区域；将彩色荧光膜铺设在所述隔光结构上，使隔光结构嵌入在所述彩色荧光膜，区域彩色荧光膜的上表面齐平，使区域彩色荧光膜通过竖直布置的隔光结构与相应的像素区域及所述区域的紫外LED灯珠逐一对应；
步骤S132、在所述彩色荧光膜上布设荧光膜衬底；
步骤S140、将所述隔光结构上表面与荧光膜衬底的下表面密闭连接；
步骤S150、所述若干紫外LED灯珠同时发光，分别同时激发被所述隔光结构分隔的所述区域彩色荧光膜；
具体而言，所述若干紫外LED灯珠同时激发所述彩色荧光膜，使彩色荧光膜发光，且每个所述紫外LED灯珠对应激发所述逐一对应的所述区域彩色荧光膜,使所述彩色荧光膜发出对应的单色光；
步骤S160、通过PWM调制方式控制所述若干紫外LED灯珠的激发强度。
在一些实施例中，所述单色荧光膜区域包括，红色荧光膜区域、绿色荧光膜区域、蓝色荧光膜区域、青色荧光膜区域；一个所述红色荧光膜区域、一个所述绿色荧光膜区域、一个所述蓝色荧光膜区域、一个所述青色荧光膜区域之间相互接，通过所述隔光结构相互隔绝，形成四合一的发光单元；
本发明申请的一些实施例中，所述区域彩色荧光膜包括：红色荧光膜区域、绿色荧光膜区域、蓝色荧光膜区域、青色荧光膜区域；一个所述红色荧光膜区域、一个所述绿色荧光膜区域、一个所述蓝色荧光膜区域、一个所述青色荧光膜区域之间相互临接，通过所述隔光结构相互隔绝，形成四合一发光单元。每个四合一发光单元包括四个紫外LED灯珠。每个所述四合一发光单元对应一个所述区域彩色荧光膜；
本发明申请的一些实施例中，所述若干紫外LED灯珠纵横交错地固定布置在LED灯珠衬底上表面，是等间距地固定布置在在LED灯珠衬底上表面；
所述若干紫外LED灯珠相互之间竖直布置隔光结构，是在若干紫外LED灯珠相互之间的间距中缝位置竖直布置隔光结构；
在一些实施例中，所述四合一的发光单元为正方形或矩形。
请参考图2和图3，图2为本发明申请一实施例的紫外LED激发荧光显示装置的正面示意图；图3为本发明申请一实施例的紫外LED激发荧光显示装置的背面示意图；所述紫外LED激发荧光显示装置，包括：
紫外LED灯珠4，用以激发彩色荧光膜2，使彩色荧光膜2发光；
具体而言，若干紫外LED灯珠4同时发光，分别同时激发彩色荧光膜2；例如，图2中，紫外LED灯珠4a激发彩色荧光膜2中的红色荧光膜区域2a，紫外LED灯珠4b激发彩色荧光膜2中的绿色荧光膜区域2b；图3中，紫外LED灯珠4c激发彩色荧光膜2中的蓝色荧光膜区域2c，紫外LED灯珠4d激发彩色荧光膜2中的青色荧光膜区域2d；紫外LED灯珠4a，紫外LED灯珠4b，紫外LED灯珠4c，紫外LED灯珠4d同时发光，同时激发红色荧光膜区域2a、绿色荧光膜区域2b、蓝色荧光膜区域2c、青色荧光膜区域2d的彩色荧光膜2发光，使红色荧光膜区域2a、绿色荧光膜区域2b、蓝色荧光膜区域2c、青色荧光膜区域2d的彩色荧光膜2同时分别发出对应的红、绿、蓝、青四色可见光；每个四合一发光单元包括四个紫外LED灯珠4，和对应的红色荧光膜区域2a、绿色荧光膜区域2b、蓝色荧光膜区域2c、青色荧光膜区域2d的彩色荧光膜2；
荧光膜衬底1，用以固定彩色荧光膜2；
彩色荧光膜2，划分为若干区域彩色荧光膜，所述区域彩色荧光膜分为红色荧光膜区域2a、绿色荧光膜区域2b、蓝色荧光膜区域2c、青色荧光膜区域2d，所述彩色荧光膜2用以通过受到紫外LED灯珠4的激发产生红、绿、蓝、青四色可见光以供显示；每个四合一发光单元对应一个区域彩色荧光膜；每个区域彩色荧光膜包括红色荧光膜区域2a、绿色荧光膜区域2b、蓝色荧光膜区域2c、青色荧光膜区域2d的彩色荧光膜2；
隔光结构3，用以将所述彩色荧光膜2划分为所述若干区域彩色荧光膜，还用以阻止所述紫外LED灯珠4错误激发临接的所述区域彩色荧光膜发光；
LED灯珠衬底5，用以固定布置若干紫外LED灯珠4；
像素区域，是每个紫外LED灯珠在区域彩色荧光膜、隔光结构3和LED灯珠衬底5合围的空间区域。
若干紫外LED灯珠4纵横交错地固定布置在LED灯珠衬底5上表面，所述若干紫外LED灯珠4相互之间有竖直隔光结构3，所述若干紫外LED灯珠4之间通过所述隔光结构3相互隔绝，在所述若干紫外LED灯珠4上连接彩色荧光膜2，所述彩色荧光膜2划分为若干区域彩色荧光膜，每个所述区域彩色荧光膜相应地分别与每个所述紫外LED灯珠4的像素区域互相对应，所述区域彩色荧光膜与所述像素区域逐一对应；所述彩色荧光膜2上连接荧光膜衬底1，所述隔光结构3上表面与所述荧光膜衬底1的下表面密闭连接，所述紫外LED灯珠4的像素区域之间有隔光结构3，所述隔光结构3的下端连接所述LED灯珠衬底5，所述隔光结构3的上端连接所述荧光膜衬底1。
请参考图4，图4为本发明申请一实施例的紫外LED激发荧光显示装置的四合一单一的俯视示意图；在一些实施例中，在所述彩色荧光膜2上划分若干区域彩色荧光膜，每个区域彩色荧光膜相应地分别与每个所述紫外LED灯珠4所在的像素区域互相对应；所述像素区域之间有上下通透，且左右隔绝的隔光结构3；如图2和图3所示，所述隔光结构3的下端连接所述LED灯珠衬底5，所述隔光结构3的上端连接所述荧光膜衬底1。如图4所示，每个四合一发光单元对应四个像素区域，例如，图4紫外LED灯珠4a，紫外LED灯珠4b，紫外LED灯珠4c，紫外LED灯珠4d，各自的像素区域分别对应红色荧光膜区域2a、绿色荧光膜区域2b、蓝色荧光膜区域2c、青色荧光膜区域2d；每个区域彩色荧光膜对应四个像素区域，所述四个像素区域分别对应红色荧光膜区域2a、绿色荧光膜区域2b、蓝色荧光膜区域2c、青色荧光膜区域2d。
请参考图5，图5为本发明申请一实施例的紫外LED激发荧光显示装置的区域彩色荧光膜示意图；彩色荧光膜2中的一个区域彩色荧光膜对应一个四合一发光单元，所述区域彩色荧光膜被隔光结构3划分为红色荧光膜区域2a、绿色荧光膜区域2b、蓝色荧光膜区域2c、青色荧光膜区域2d；所述隔光结构3还用来划分各个区域彩色荧光膜，用以避免被紫外LED灯珠4a，紫外LED灯珠4b，紫外LED灯珠4c，紫外LED灯珠4d激发的各个四合一发光单元之间的红绿蓝青四色可见光相互之间发生干扰。
在一些实施例中，如图2、图3所示，所述荧光膜衬底1下方涂覆第一荧光材料，和/或，在所述紫外LED灯珠4的像素区域的上端涂覆第二荧光材料，所述第一荧光材料和/或所述第二荧光材料包括量子点荧光材料。通过使用量子点荧光材料可实现定制任意波长的激发光，具体而言，紫外LED灯珠激发彩色荧光膜发出的光可以通过所述第一荧光材料和/或所述第二荧光材料设定任意波长，发出红色、绿色、蓝色或青色的光。所述红色荧光膜区域2a、绿色荧光膜区域2b、蓝色荧光膜区域2c、青色荧光膜区域2d分别对应的第一荧光材料和第二荧光材料完全一致。该实施例具有简便易行，使用量子点荧光材料就可发出四种可见光，有利于降低产品成本，提高生产效率，使Mini LED或Micro LED的大量生产和转移更加便捷、快速，大幅度降低了工艺难度。
在一些可选实施例中，第一荧光材料和/或第二荧光材料，也可以部分或全部选择能够被激发出特定颜色的荧光材料和所述量子点荧光材料；例如，部分选用所述能够被激发出特定颜色的荧光材料包括：红色可选用Y2O2S：Eu，Mg，Ti或CaSrS；绿色可选用ZnS：Cu，Cl或SrAl2O4：Eu，Dy；蓝色可选用Sr4Al14O25：Eu，Dy；或CaAl2O4：Eu，Nd；
在一些可选实施例中，可以同时使用所述能够被激发出特定颜色的荧光材料和量子点荧光材料作为第一荧光材料和/或第二荧光材料；例如，红色荧光膜区域2a可选用Y2O2S：Eu，Mg、绿色荧光膜区域2b可选用ZnS：Cu，Cl或SrAl2O4：Eu，Dy；、蓝色荧光膜区域2c可选用Sr4Al14O25：Eu，Dy；或CaAl2O4：Eu，Nd；而青色荧光膜区域2d可选用所述量子点荧光材料，并通过所述所述量子点荧光材料调整波长。如图2、图3和图4所示，所述红色荧光膜区域2a、绿色荧光膜区域2b、蓝色荧光膜区域2c、青色荧光膜区域2d分别对应使用的第一荧光材料和使用的第二荧光材料完全一致；例如，当青色荧光膜区域2d的第一荧光材料为量子点荧光材料时，如果该青色荧光膜区域2d还对应有第二荧光材料，则所述第二荧光材料只能为相同量子点荧光材料，并设定为发出青色光的波长。
本发明申请通过彩色荧光膜及其涂敷的荧光材料发光的余辉效应，使紫外LED灯珠的PWM激发光源到荧光材料发光之间，具有增加了一个低通滤波器的有益效果，可以大幅度减少甚至消除LED显示屏的高低频闪烁现象，从而具有大幅度提高LED显示屏高清晰度显示质量和视觉感受的有益效果。
在一些实施例中，所述第二荧光材料具体的应用可以有多种，例如，在本发明的一些实施例中，该第二荧光材料可以用于滤除位于紫外光波段的透射光，通过预设波段为紫外光波段，具有使得彩色荧光膜2的上层可以起到滤除紫外线的作用，进而一方面可以降低紫外线的强度，以达到降低对人眼的损伤的效果，具有避免紫外光长期对LED显示屏照射而导致的设备老化。
本发明申请还提供了一种紫外LED激发荧光显示模组，所述模组包括：
如图2和图3所示，所述模组包括：PCB板（图中未示出）、紫外LED灯珠4、PWM驱动芯片（图中未示出），所述PCB板顶部固定在LED灯珠衬底5，所述LED灯珠衬底5上固定布置紫外LED灯珠4，若干所述紫外LED灯珠上有彩色荧光膜，所述彩色荧光膜2通过隔光结构3划分为若干区域彩色荧光膜，所述区域彩色荧光膜分为红色荧光膜区域8a、绿色荧光膜区域8b、蓝色荧光膜区域8c、青色荧光膜区域8d，所述彩色荧光膜2顶部固定有荧光膜衬底1，若干所述紫外LED灯珠4呈纵横交错地固定布置在LED灯珠衬底5上表面，所述PCB板一侧固定有PWM驱动芯片。
在一些可选实施例中，如图2、图3所示，四个纵横排列且相互间等距相邻的紫外LED灯珠4a、紫外LED灯珠4b、紫外LED灯珠4c、紫外LED灯珠4d，分别对应上部的四个纵横排列且相互间等距相邻的红色荧光膜区域8a、绿色荧光膜区域8b、蓝色荧光膜区域8c、青色荧光膜区域8d；一个所述红色荧光膜区域8a、一个所述绿色荧光膜区域8b、一个所述蓝色荧光膜区域8c、一个所述青色荧光膜区域8d之间相互接，通过所述隔光结构3相互隔绝，形成四合一的发光单元9；若干所述四合一的发光单元9在同一个平面呈矩阵排列；所述PCB板内部固定有螺丝，所述螺丝设有多个，所述PCB板一侧固定有PWM驱动芯片；在一些实施例中，包括至少一个所述PWM驱动芯片，且至少一个所述PWM驱动芯片之间等距排列。
本发明申请还提供了一种紫外LED激发荧光显示屏，用于实现本发明申请任一实施例所述的紫外LED激发荧光显示方法。具体而言本发明申请所述紫外LED激发荧光显示屏还包括本发明申请任一所述紫外LED激发荧光显示装置。
本发明申请一实施例还提供了一种紫外LED激发荧光显示系统，所述紫外LED激发荧光显示系统，用于实现本发明任一实施例所述的的紫外LED激发荧光显示方法；具体而言本发明申请所述紫外LED激发荧光显示系统还包括本发明申请任一所述紫外LED激发荧光显示装置。
在一些可选实施例中，所述系统包括实现本发明任一实施例的所述步骤通过PWM调制方式控制所述若干紫外LED灯珠的激发强度。
本发明申请一实施例还提供了一种存储介质，其上存储有计算机程序，其中所述计算机程序在由处理器执行时用于实现本发明任一实施例所述的紫外LED激发荧光显示方法；
在一些实施例中，所述存储介质包括用于实现本发明任一实施例所述的紫外LED激发荧光显示方法的所述步骤通过PWM调制方式控制所述若干紫外LED灯珠的激发强度。
本发明申请实施例还提供一种电子设备，包括处理器和机器可读存储介质，所述机器可读存储介质存储有能够被所述处理器执行的机器可执行指令，在被处理器调用和执行时，所述处理器可执行指令促使所述处理器：实现本发明申请任一实施例所述的紫外LED激发荧光显示方法。
所述系统/计算机装置集成的部件/模块/单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明实现上述实施方式方法中的全部或部分流程，也可以通过计算机程序来指令相关的硬件来完成，所述的计算机程序可存储在一个计算机可读存储介质中，所述计算机程序在被处理器执行时，可实现上述各个方法实施方式的步骤。其中，所述计算机程序包括计算机程序代码，所述计算机程序代码可以为源代码形式、对象代码形式、可执行文件或某些中间形式等。所述计算机可读存储介质可以包括：能够携带所述计算机程序代码的任何实体或装置、记录介质、U盘、移动硬盘、磁碟、光盘、计算机存储器、只读存储器 (ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、电载波信号、电信信号以及软件分发介质等。需要说明的是，所述计算机可读介质包含的内容可以根据司法管辖区内立法和专利实践的要求进行适当的增减，例如在某些司法管辖区，根据立法和专利实践，计算机可读介质不包括电载波信号和电信信号。
本发明未尽事宜为公知技术。
在本发明所提供的几个具体实施方式中，应该理解到，所揭露的系统和方法，可以通过其它的方式实现。例如，以上所描述的系统实施方式仅仅是示意性的，例如，所述部件的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。
另外，在本发明各个实施例中的各功能模块/部件可以集成在相同处理模块/部件中，也可以是各个模块/部件单独物理存在，也可以两个或两个以上模块/部件集成在相同模块/部件中。上述集成的模块/部件既可以采用硬件的形式实现，也可以采用硬件加软件功能模块/部件的形式实现。
对于本领域技术人员而言，显然本发明实施例不限于上述示范性实施例的细节， 而且在不背离本发明实施例的精神或基本特征的情况下，能够以其他的具体形式实现本发明实施例。因此，无论从哪一点来看，均应将实施例看作是示范性的，而且是非限制性的，本发明实施例的范围由所附权利要求而不是上述说明限定，因此旨在将落在权利要求的等同要件的含义和范围内的所有变化涵括在本发明实施例内。不应将权利要求中的任何附图标记视为限制所涉及的权利要求。此外，显然“包括”一词不排除其他单元或步骤，单数不排除复数。系统、装置或终端权利要求中陈述的多个单元、模块或装置也可以由同一个单元、模块或装置通过软件或者硬件来实现。第一，第二等词语用来表示名称，而并不表示任何特定的顺序。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (8)

  1. 一种紫外LED激发荧光显示方法，其特征在于，包括：
    若干紫外LED灯珠纵横交错地固定布置在LED灯珠衬底上表面；
    所述若干紫外LED灯珠相互之间竖直布置隔光结构，使所述若干紫外LED灯珠之间通过所述隔光结构相互隔绝；
    在所述若干紫外LED灯珠上布设彩色荧光膜；
    在所述彩色荧光膜上划分区域彩色荧光膜，每个所述区域彩色荧光膜相应地分别与每个所述紫外LED灯珠的像素区域互相对应，使所述区域彩色荧光膜通过竖直布置的所述隔光结构与所述像素区域逐一对应；
    在所述彩色荧光膜上布设荧光膜衬底；
    将所述隔光结构上表面与所述荧光膜衬底的下表面密闭连接；
    所述若干紫外LED灯珠同时发光，分别同时激发被所述隔光结构分隔的所述区域彩色荧光膜；
    通过PWM调制方式控制所述若干紫外LED灯珠的激发强度。
  2. 根据权利要求1所述的紫外LED激发荧光显示方法，其特征在于，所述区域彩色荧光膜包括：红色荧光膜区域、绿色荧光膜区域、蓝色荧光膜区域、青色荧光膜区域；一个所述红色荧光膜区域、一个所述绿色荧光膜区域、一个所述蓝色荧光膜区域、一个所述青色荧光膜区域之间相互临接，通过所述隔光结构相互隔绝，形成四合一发光单元。
  3. 根据权利要求1所述的紫外LED激发荧光显示方法，其特征在于，所述若干紫外LED灯珠纵横交错地固定布置在所述LED灯珠衬底上表面，是等间距地固定布置在在所述LED灯珠衬底上表面；
    所述若干紫外LED灯珠相互之间竖直布置隔光结构，是在若干紫外LED灯珠相互之间的间距中缝位置竖直布置所述隔光结构。
  4. 一种紫外LED激发荧光显示装置，其特征在于，所述紫外LED激发荧光显示装置，包括：
    紫外LED灯珠，用以激发彩色荧光膜，使彩色荧光膜发光；
    荧光膜衬底，用以固定彩色荧光膜；
    彩色荧光膜，划分为若干区域彩色荧光膜，所述区域彩色荧光膜分为红色荧光膜区域、绿色荧光膜区域、蓝色荧光膜区域、青色荧光膜区域，所述彩色荧光膜用以通过受到所述若干紫外LED灯珠同时发光激发产生红、绿、蓝、青四色可见光以供显示；
    隔光结构，用以将所述彩色荧光膜划分为所述若干区域彩色荧光膜，还用以阻止所述紫外LED灯珠错误激发临接的所述区域彩色荧光膜发光；
    LED灯珠衬底，用以固定布置若干所述紫外LED灯珠；
    像素区域，是每个紫外LED灯珠在区域彩色荧光膜、隔光结构和LED灯珠衬底合围的空间区域；
    若干紫外LED灯珠纵横交错地固定布置在LED灯珠衬底上表面，所述若干紫外LED灯珠相互之间有竖直隔光结构，所述若干紫外LED灯珠之间通过所述隔光结构相互隔绝，在所述若干紫外LED灯珠上连接彩色荧光膜，所述彩色荧光膜划分为若干区域彩色荧光膜，每个所述区域彩色荧光膜相应地分别与每个所述紫外LED灯珠的像素区域互相对应，所述区域彩色荧光膜与所述像素区域逐一对应；所述彩色荧光膜上连接荧光膜衬底，所述隔光结构上表面与所述荧光膜衬底的下表面密闭连接，所述紫外LED灯珠的像素区域之间有隔光结构，所述隔光结构的下端连接所述LED灯珠衬底，所述隔光结构的上端连接所述荧光膜衬底。
  5. 根据权利要求4所述的紫外LED激发荧光显示装置，其特征在于，所述荧光膜衬底下方涂覆第一荧光材料，和/或，在所述区域彩色荧光膜的下端端涂覆第二荧光材料，所述第一荧光材料和/或所述第二荧光材料包括量子点荧光材料。
  6. 一种紫外LED激发荧光显示模组，其特征在于，所述模组包括：PCB板、紫外LED灯珠、PWM驱动芯片，所述PCB板顶部固定LED灯珠衬底，所述LED灯珠衬底上固定布置紫外LED灯珠，若干所述紫外LED灯珠上有彩色荧光膜，所述彩色荧光膜通过隔光结构划分为若干区域彩色荧光膜，所述区域彩色荧光膜分为红色荧光膜区域、绿色荧光膜区域、蓝色荧光膜区域、青色荧光膜区域，所述彩色荧光膜顶部固定有荧光膜衬底，若干所述紫外LED灯珠呈纵横交错地固定布置在LED灯珠衬底上表面，所述PCB板一侧固定有PWM驱动芯片。
  7. 一种紫外LED激发荧光显示屏，其特征在于，用于实现本发明申请权利要求1-3任一项所述的紫外LED激发荧光显示方法。
  8. 一种紫外LED激发荧光显示系统，其特征在于，用于实现本发明申请权利要求1-3任一项所述的紫外LED激发荧光显示方法。
PCT/CN2020/130498 2020-09-09 2020-11-20 一种紫外led激发荧光显示方法、装置和系统 WO2022052310A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010942161.8 2020-09-09
CN202010942161.8A CN112270893A (zh) 2020-09-09 2020-09-09 一种紫外led激发荧光显示方法、装置和系统

Publications (1)

Publication Number Publication Date
WO2022052310A1 true WO2022052310A1 (zh) 2022-03-17

Family

ID=74349857

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/130498 WO2022052310A1 (zh) 2020-09-09 2020-11-20 一种紫外led激发荧光显示方法、装置和系统

Country Status (2)

Country Link
CN (1) CN112270893A (zh)
WO (1) WO2022052310A1 (zh)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102760419A (zh) * 2012-07-18 2012-10-31 刘纪美 一种全彩色硅基有源选址发光二极管微投影芯片
CN106898628A (zh) * 2017-04-28 2017-06-27 深圳市华星光电技术有限公司 Led显示面板
CN108183159A (zh) * 2017-11-17 2018-06-19 广州市香港科大霍英东研究院 一种微发光二极管、微发光显示器数组结构及封装方法
WO2019159702A1 (ja) * 2018-02-15 2019-08-22 株式会社ブイ・テクノロジー フルカラーｌｅｄ表示パネル及びその製造方法
WO2020116207A1 (ja) * 2018-12-05 2020-06-11 株式会社ブイ・テクノロジー マイクロｌｅｄ実装構造、マイクロｌｅｄディスプレイ及びマイクロｌｅｄディスプレイの製造方法
TW202029166A (zh) * 2018-11-16 2020-08-01 日商Ｖ科技股份有限公司 全彩ｌｅｄ顯示面板

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101515422B (zh) * 2008-02-18 2010-12-29 富士迈半导体精密工业（上海）有限公司 Led显示装置
CN105353554A (zh) * 2015-12-04 2016-02-24 深圳市华星光电技术有限公司 彩膜基板的制作方法及液晶显示装置
CN106373951A (zh) * 2016-09-19 2017-02-01 苏州东善微光光电技术有限公司 Rgb全彩光源、全彩色发光器件及显示装置
CN109671836A (zh) * 2017-10-13 2019-04-23 易美芯光（北京）科技有限公司 一种可调色温可调显指可调亮度白光led的实现方法
CN207664059U (zh) * 2017-11-17 2018-07-27 广州市香港科大霍英东研究院 一种微发光二极管及微发光显示器数组结构
CN107993583B (zh) * 2017-11-27 2019-09-17 武汉华星光电技术有限公司 微型发光二极管显示装置及其制作方法
CN108564891A (zh) * 2018-02-02 2018-09-21 深圳市奥拓电子股份有限公司 Led显示模组及led显示屏
CN208315601U (zh) * 2018-03-07 2019-01-01 深圳市玲涛光电科技有限公司 荧光膜片、发光模组及显示器件
CN209843706U (zh) * 2019-06-05 2019-12-24 旭宇光电（深圳）股份有限公司 全光谱led灯珠及照明灯
CN110335935B (zh) * 2019-06-14 2021-07-13 厦门大学 一种近紫外激发单芯片全光谱led及其制备方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102760419A (zh) * 2012-07-18 2012-10-31 刘纪美 一种全彩色硅基有源选址发光二极管微投影芯片
CN106898628A (zh) * 2017-04-28 2017-06-27 深圳市华星光电技术有限公司 Led显示面板
CN108183159A (zh) * 2017-11-17 2018-06-19 广州市香港科大霍英东研究院 一种微发光二极管、微发光显示器数组结构及封装方法
WO2019159702A1 (ja) * 2018-02-15 2019-08-22 株式会社ブイ・テクノロジー フルカラーｌｅｄ表示パネル及びその製造方法
TW202029166A (zh) * 2018-11-16 2020-08-01 日商Ｖ科技股份有限公司 全彩ｌｅｄ顯示面板
WO2020116207A1 (ja) * 2018-12-05 2020-06-11 株式会社ブイ・テクノロジー マイクロｌｅｄ実装構造、マイクロｌｅｄディスプレイ及びマイクロｌｅｄディスプレイの製造方法

Also Published As

Publication number Publication date
CN112270893A (zh) 2021-01-26

Similar Documents

Publication Publication Date Title
US10373574B2 (en) Locally dimmed quantum dot display
WO2019019216A1 (zh) 直下式背光模组以及液晶显示器
KR102105132B1 (ko) 광발광 컬러 디스플레이
CN103765502B (zh) 具有宽色域和能量效率的高动态范围显示器
TWI431371B (zh) 具有發光二極體之背光模組與具有該模組之液晶顯示裝置
US10514574B2 (en) Direct type backlight module and liquid crystal display
TW201702705A (zh) 光致發光彩色顯示器
JP2005115372A (ja) Ｌｅｄの二次元アレイを用いるｌｃｄバックライト
JP2002049326A (ja) 平面光源およびそれを用いた表示素子
US10317728B2 (en) Backlight device and liquid crystal display device including same
JP6176517B2 (ja) カラーフィルタおよび表示装置
WO2015174144A1 (ja) バックライト装置およびそれを備えた液晶表示装置
CN104269144B (zh) 场色序法液晶显示装置及其色彩控制方法
JP2010128310A (ja) カラーフィルタおよび白色発光ダイオード光源液晶表示装置
WO2021203460A1 (zh) 显示模组及显示装置
WO2016138699A1 (zh) 背光模组及具有该背光模组的液晶显示装置
US20140240612A1 (en) Display device, television device, and method of manufacturing display device
JP2009229791A (ja) 液晶表示装置
JP2004245996A (ja) 色補正フィルタ及びバックライトユニット、並びに液晶表示装置
WO2022052310A1 (zh) 一种紫外led激发荧光显示方法、装置和系统
US9223174B2 (en) Liquid crystal display device including light sources emitting different colors
CN113888991B (zh) 一种发光面板、显示面板、背光模组和显示装置
KR101956058B1 (ko) 표시장치
CN109343267A (zh) 量子点彩膜基板及其制备方法
KR102421222B1 (ko) 엘이디 패키지 및 엘이디 패키지를 포함하는 백라이트 유닛

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20953095

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20953095

Country of ref document: EP

Kind code of ref document: A1