CN113745206A - LED display substrate and manufacturing method thereof - Google Patents

LED display substrate and manufacturing method thereof Download PDF

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Publication number
CN113745206A
CN113745206A CN202110905912.3A CN202110905912A CN113745206A CN 113745206 A CN113745206 A CN 113745206A CN 202110905912 A CN202110905912 A CN 202110905912A CN 113745206 A CN113745206 A CN 113745206A
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lamp
lamp bead
display substrate
led display
lamp beads
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CN113745206B (en
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洪志坤
张胜森
欧昌东
郑增强
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Shanghai Jinglai Electronic Technology Co ltd
Wuhan Jingce Electronic Group Co Ltd
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Shanghai Jinglai Electronic Technology Co ltd
Wuhan Jingce Electronic Group Co Ltd
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    • 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
    • H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
    • H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
    • H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
    • H01L25/0753—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00 the devices being arranged next to each other
    • 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 having potential barriers 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 having potential barriers 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
    • 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

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  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
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  • General Physics & Mathematics (AREA)
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Abstract

The application relates to an LED display substrate and a manufacturing method thereof, relating to the technical field of LEDs, wherein the LED display substrate is provided with a plurality of types of lamp beads with different light-emitting colors, and each type of lamp beads is divided into at least one lamp bead subclass based on the central wavelength of the lamp beads; each type of the lamp beads are arranged periodically in at least one set direction according to the corresponding lamp bead subclasses. This application arranges the lamp pearl of different grade type, and there is the homogeneous lamp pearl periodic arrangement of skew with central spectrum on display substrate, realizes the uniformity of the whole colour of display panel to and improve the utilization ratio and the productivity of display lamp pearl.

Description

LED display substrate and manufacturing method thereof
Technical Field
The application relates to the technical field of LEDs, in particular to an LED display substrate and a manufacturing method thereof.
Background
With the development of technology, display products are constantly being updated. The development of display technology includes CRT technology, LCD liquid crystal display technology, OLED display technology. Compared with the prior display technical scheme, the new display technology has great progress in display picture quality, chroma saturation, contrast and energy consumption.
Of the various display technologies, Mini LED, Micro LED (hereinafter referred to as LED) is considered to be the most potential alternative as a next generation display product. The LED comprises three colors of R, G and B. In the display process, the color of a display picture is changed by changing different intensities of the three-color LED lamp beads, so that the color display is realized. Wherein white can be displayed when all three colors are highlighted. Different intensities vary and different colors are displayed. Therefore, on the display substrate, the RGB pixels are periodically arranged, and planar display is realized. In the LED display, such a display is also used. However, due to the stability problem of the manufacturing process of the LED lamp beads, the light-emitting spectrums of different lamp beads are not consistent. For example, the light-emitting center spectrum of the R LED lamp beads in different areas on the same wafer has deviation of several nm. Different positions on the display back plate are installed with these LED lamp beads, and the problem of color cast of the display panel can be caused due to the problem of lamp bead spectrum consistency.
The current solution is to measure the light emission spectra of different R-type LED display beads, and then mount LED beads with the same center wavelength on a display substrate, in order to improve the display quality. The current solution is not favorable to the productivity promotion of product, and the display product of different batches, can have obvious inconsistent problem of colour.
In order to solve the above technical problems, an LED display substrate and a manufacturing method thereof are provided to meet the current test requirements.
Disclosure of Invention
The application provides an LED display substrate and a manufacturing method thereof, different types of lamp beads are arranged, and the similar lamp beads with offset central spectrum are periodically arranged on the display substrate, so that the consistency of the whole color of a display panel is realized, and the utilization rate and the capacity of the display lamp beads are improved.
In a first aspect, the application provides an LED display substrate, wherein multiple types of lamp beads with different light-emitting colors are arranged on the LED display substrate, and each type of lamp beads is divided into at least one lamp bead subclass based on the central wavelength of the lamp beads;
each type of the lamp beads are arranged periodically in at least one set direction according to the corresponding lamp bead subclasses.
Furthermore, all kinds of lamp beads are arranged periodically in at least one set direction according to the corresponding lamp bead types.
Preferably, all the lamp beads are configured to be uniformly distributed on the LED display substrate according to the respective corresponding lamp bead types and the corresponding lamp bead sub-types.
Further, a plurality of lamp beads form a lamp bead combination, and the lamp bead combination comprises at least one lamp bead of a lamp bead type;
and the lamp bead combinations are arranged on the LED display substrate periodically.
Furthermore, each type of the lamp beads in the lamp bead combination are periodically arranged in at least one set direction according to the corresponding lamp bead subclasses.
Specifically, lamp beads of all lamp bead subclasses of all lamp bead types are contained in the lamp bead combination.
Preferably, the lamp beads of different lamp bead types in the lamp bead combination are arranged periodically in at least one set direction.
Preferably, the lamp beads of the same lamp bead type but different lamp bead types in the lamp bead combination are periodically arranged in at least one set direction.
Preferably, when the lamp beads corresponding to the lamp bead types with at least 2 lamp bead subclasses are arranged on the LED display substrate, the adjacent lamp beads of the same type have different lamp bead subclasses.
In a second aspect, the present application provides another method for manufacturing an LED display substrate, the method comprising the following steps:
dividing all the lamp beads into different lamp bead types according to the light-emitting color;
dividing each type of lamp beads into at least one lamp bead subclass based on the central wavelength of the lamp beads;
and arranging each type of lamp beads on the LED display substrate periodically in at least one set direction according to the corresponding lamp bead subclasses according to requirements.
The beneficial effect that technical scheme that this application provided brought includes:
(1) this application arranges the lamp pearl of different grade type, and there is the homogeneous lamp pearl periodic arrangement of skew with central spectrum on display substrate, realizes the uniformity of the whole colour of display panel to and improve the utilization ratio and the productivity of display lamp pearl.
(2) This application carries out periodic arrangement with the lamp pearl of different grade type according to setting for the direction, and the display substrate of preparation formation different grade type to satisfy different production demands.
(3) This application forms a lamp pearl combination with a plurality of lamp pearls, can carry out periodic arrangement with each subclass lamp pearl among all kinds of lamp pearls and all kinds of lamp pearls in every lamp pearl combination for each subclass lamp pearl among all kinds of lamp pearls and all kinds of lamp pearls can evenly distributed, solves the problem that shows the colour difference.
(4) This application divides the lamp pearl into a plurality of independent lamp pearl units, and a plurality of lamp pearl combinations arrange the lamp pearl combination promptly to be convenient for more convenient carry on the lamp pearl and arrange.
(5) The lamp pearl subclass of adjacent lamp pearl of the same kind is different in this application for the lamp pearl is on need not to carry out the basis of evenly arranging according to strict rule, can reduce to a certain extent and show the colour difference at the formation principle aspect that shows the colour difference equally, solves the problem that shows the colour difference to a certain extent.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view of a lamp bead layout in the prior art corresponding to an LED display substrate provided in an embodiment of the present application;
fig. 2 is a schematic view of a first lamp bead layout of an LED display substrate provided in an embodiment of the present application;
fig. 3 is a schematic diagram of a second bead layout of an LED display substrate provided in the embodiment of the present application;
fig. 4 is a schematic view of a third bead layout of an LED display substrate provided in the embodiment of the present application;
fig. 5 is a schematic diagram of a fourth lamp bead layout of the LED display substrate provided in the embodiment of the present application;
fig. 6 is a fifth lamp bead layout schematic diagram of the LED display substrate provided in the embodiment of the present application.
Detailed Description
Interpretation of terms:
LED, Lht Emitting Diode, light Emitting Diode;
CRT, polar ray tube;
LCD, Liquid Crystal Display;
OLED, Organic Light-Emitting Diode, Organic Light-Emitting semiconductor.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all 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 application.
Embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
The embodiment of the application provides an LED display substrate and a manufacturing method thereof, different types of lamp beads are arranged, and the similar lamp beads with offset central spectrum are periodically arranged on the display substrate, so that the consistency of the whole color of a display panel is realized, and the utilization rate and the capacity of the display lamp beads are improved.
In order to achieve the technical effects, the general idea of the application is as follows:
an LED display substrate is provided with a plurality of types of lamp beads with different light-emitting colors, wherein each type of lamp beads is divided into at least one lamp bead sub-type based on the central wavelength of the lamp beads;
each type of the lamp beads are arranged periodically in at least one set direction according to the corresponding lamp bead subclasses.
Embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
In a first aspect, referring to fig. 1 to 6, an embodiment of the present application provides an LED display substrate, where multiple types of lamp beads with different light-emitting colors are provided on the LED display substrate, and each type of lamp bead is divided into at least one lamp bead subclass based on a central wavelength of the lamp bead itself;
each type of the lamp beads are periodically arranged in at least one set direction according to the corresponding lamp bead subclasses; wherein,
the reason why each type of lamp beads are periodically arranged in at least one set direction according to the corresponding lamp bead subclasses is that if the similar lamp beads with different central wavelengths are not uniformly distributed, the similar lamp beads with a certain central wavelength are intensively distributed, and a certain color display difference exists on the LED display substrate, so that the similar lamp beads need to be periodically arranged in at least one set direction according to the corresponding lamp bead subclasses, and the possibility of color display deviation of the color corresponding to the lamp beads on the LED display substrate is reduced as much as possible.
The LED display substrate of this application embodiment mainly is based on Mini LED or Micro LED technique, has the characteristics that the integrated level is high, compares in the display substrate that traditional carried out simple arrangement to the lamp pearl, and it arranges and installs certain restriction requirement to LED lamp pearl in the manufacturing process.
Specifically, each type of lamp bead corresponds to a light-emitting color.
It should be noted that, the bead in the LED display substrate in the embodiment of the present application is illustrated here:
assuming that multiple types of lamp beads exist in the LED display substrate, taking three types of lamp beads as an example, the three types of lamp beads correspond to different light-emitting colors respectively, and are calibrated to A, B, C types of lamp beads;
assuming that the a-type lamp beads have three lamp bead sub-classes, that is, the a-type lamp beads include three sub-classes, and the respective central wavelengths are a1, a2 and A3, in practical cases, the central wavelengths may not be exactly a1, a2 or A3, and a wavelength deviation value Δ may be actually setACorrespondingly, the wavelength can be divided into three sub-classes, and the central wavelength range of the three sub-classes is A1 + -deltaA、A2±ΔAAnd A3. + -. ΔA；
Similarly, assuming that there are three lamp bead sub-categories in the B-category lamp bead, that is, the B-category lamp bead includes three sub-categories, and the respective central wavelengths are B1, B2, and B3, in actual situations, the central wavelengths may not be exactly B1, B2, or B3, and a wavelength deviation value Δ may be actually setBCorrespondingly, the wavelength can be divided into three sub-classes, and the central wavelength range of the three sub-classes is B1 + - ΔB、B2±ΔBAnd B3. + -. ΔB；
Similarly, assuming that there are three lamp bead sub-categories in the C-category lamp bead, that is, the C-category lamp bead includes three sub-categories, and the respective central wavelengths are C1, C2, and C3, in actual situations, the central wavelengths may not be exactly C1, C2, or C3, and a wavelength deviation value Δ may be actually setCCorrespondingly, the wavelength range of the center wavelength is C1 ± ΔC、C2±ΔCAnd C3. + -. ΔC；
The difference of the central wavelength can be obtained by detecting the lamp beads by using the detection equipment in the later stage, and can also be judged by different batches during production, namely the central wavelengths of the same batch of similar lamp beads are approximately equal and belong to the same lamp bead subclass.
It should be noted that, in the embodiment of the present application, the lamp beads of the same color are not necessarily divided into three wavelength batches, and 2 wavelength batches, 3 wavelength batches or more than three wavelength batches may be layered according to the complexity of the process and the uniformity of the incoming material.
As shown in fig. 1 of the drawings in the specification, which is a schematic diagram of a bead layout of an LED display substrate in the prior art, there is a display color difference, and fig. 2 to 5 of the drawings in the specification are schematic diagrams of a bead layout of an LED display substrate in an embodiment of the present application;
in addition, the embodiment of the application is not limited to the lamp bead layout situations shown in fig. 2 to 5 of the drawings in the specification.
In the embodiment of the application, the lamp beads of different types are arranged, the similar lamp beads with offset central spectrum are periodically arranged on the display substrate, the consistency of the whole color of the display panel is realized, and the utilization rate and the productivity of the display lamp beads are improved.
In addition, more importantly, the subclass division is performed in a mode of confirming the slight difference of the central wavelength of each type of lamp beads, and lamp beads of different subclasses are regularly arranged under each type of lamp beads, so that the problem of display deviation is effectively solved.
Furthermore, the various lamp beads are periodically arranged in at least one set direction according to the corresponding lamp bead types;
the arrangement mode is to satisfy the use requirements of different LED display substrates, such as RGB three-color lamp bead display, for example, other multi-color display lamp beads, such as RGBW or RYYB, need lamp beads of different colors to carry out regular arrangement according to the requirements.
Preferably, all the lamp beads are configured to be uniformly distributed on the LED display substrate according to the respective corresponding lamp bead types and the corresponding lamp bead sub-types;
not only in the above layout form, but according to the corresponding requirements, one of the situations in the embodiments of the present application is to uniformly distribute the lamp beads with different colors on the LED display substrate, and to uniformly distribute the lamp beads of different lamp bead subclasses of the lamp beads with different colors,
therefore, the display requirement of the LED display substrate is met on one hand, and the regional color deviation problem of the LED display substrate is solved to a certain extent on the other hand.
Further, a plurality of lamp beads form a lamp bead combination, and the lamp bead combination comprises at least one lamp bead of a lamp bead type;
and the lamp bead combinations are arranged on the LED display substrate periodically.
Furthermore, each type of the lamp beads in the lamp bead combination are periodically arranged in at least one set direction according to the corresponding lamp bead subclasses.
Specifically, lamp beads of all lamp bead subclasses of all lamp bead types are contained in the lamp bead combination.
Preferably, the lamp beads of different lamp bead types in the lamp bead combination are arranged periodically in at least one set direction.
Furthermore, the lamp beads of the same lamp bead type but different lamp bead types in the lamp bead combination are periodically arranged in at least one set direction.
It should be noted that, the lamp bead arrangement is performed by using a lamp bead combination mode, on one hand, various lamp beads and each subclass of the various lamp beads can be periodically arranged in each lamp bead combination, so that the various lamp beads and each subclass of the various lamp beads can be uniformly distributed, and the problem of displaying chromatic aberration is solved;
on the other hand, still can divide into a plurality of independent lamp pearl units with the lamp pearl, a plurality of lamp pearl combinations promptly arrange the lamp pearl combination to be convenient for more convenient carry out the lamp pearl and arrange, satisfy evenly distributed, solve the problem that shows the colour difference.
Further, when the lamp beads corresponding to the lamp bead types with at least 2 lamp bead subclasses are arranged on the LED display substrate, the adjacent lamp beads of the same type have different lamp bead subclasses;
in actual operation, if the display color difference can be obtained according to the periodic arrangement or uniform arrangement mode, a better display color difference solution effect can be obtained;
however, because the reason for forming the display color difference is that the lamp beads of different sub-types of the same type of lamp beads are distributed too intensively according to the respective lamp bead sub-types, so that the display color difference between the different lamp bead sub-types can be highlighted, if the lamp beads corresponding to the lamp bead types having at least 2 lamp bead sub-types are arranged on the LED display substrate, the display color difference can be reduced to a certain extent in the aspect of the formation principle of the display color difference, and the problem of the display color difference can be solved to a certain extent.
It should be noted that, the LED display substrate in the embodiment of the present application may mainly display RGB three-color lamp beads, such as other multi-color display lamp beads, for example, RGBW or RYYB;
in addition, in the embodiment of the present application, a sub-pixel formed by RGB pixels (lamp beads) is not necessarily arranged in a rectangle or a square, and is also applicable to other pixel arrangement modes such as a diamond shape, and the like.
The RGB color scheme is a color standard in the industry, and various colors are obtained by changing three color channels of red (R), green (G), and blue (B) and superimposing the three color channels on each other, wherein RGB represents colors of the three channels of red, green, and blue, and the standard almost includes all colors that can be perceived by human vision, and is one of the most widely used color systems;
the RGBW technology is that a W white Sub-Pixel is added on the original RGB three primary colors, a four-color type Pixel design is formed, the RGBW technology is a Sub Pixel Rendering technical mode, the consistency of color expression is realized in a new Pixel arrangement mode, meanwhile, the light transmittance of the liquid crystal panel is greatly improved, when the picture with the same brightness is displayed, the power consumption is lower, and under the condition of the same power consumption, the brightness is greatly improved, so that the picture level is clearer, and the picture is more transparent;
the RYYB is formed by replacing two green pixels (G) with two yellow pixels (Y), so that the problem of light loss can be obviously reduced, and 40% of light incoming amount can be improved.
In a second aspect, based on the same design idea of the LED display substrate mentioned in the first aspect, an embodiment of the present application provides a method for manufacturing an LED display substrate, including the following steps;
s1, dividing all the lamp beads into different lamp bead types according to the light emitting colors;
s2, dividing each type of lamp beads into at least one lamp bead subclass based on the central wavelength of the lamp beads;
and S3, arranging each type of lamp beads on the LED display substrate periodically in at least one set direction according to the corresponding lamp bead subclasses according to requirements.
The reason why the lamp beads of the same type are periodically arranged in at least one set direction according to the corresponding lamp bead subclasses is that if the lamp beads of the same type with different central wavelengths are not uniformly distributed, the lamp beads of the same type with a certain central wavelength are intensively arranged, and a certain color display difference exists on the LED display substrate, so that the lamp beads of the same type need to be periodically arranged in at least one set direction according to the corresponding lamp bead subclasses, and the color display deviation of the color corresponding to the lamp beads on the LED display substrate is reduced as much as possible.
It should be noted that, the bead in the LED display substrate in the embodiment of the present application is illustrated here:
assuming that multiple types of lamp beads exist in the LED display substrate, taking three types of lamp beads as an example, the three types of lamp beads correspond to different light-emitting colors respectively, and are calibrated to A, B, C types of lamp beads;
assuming that the a-type lamp beads have three lamp bead sub-classes, that is, the a-type lamp beads include three sub-classes, and the respective central wavelengths are a1, a2 and A3, in practical cases, the central wavelengths may not be exactly a1, a2 or A3, and a wavelength deviation value Δ may be actually setACorrespondingly, the wavelength can be divided into three sub-classes, and the central wavelength range of the three sub-classes is A1 + -deltaA、A2±ΔAAnd A3. + -. ΔA；
Similarly, assuming that there are three lamp bead sub-categories in the B-category lamp bead, that is, the B-category lamp bead includes three sub-categories, and the respective central wavelengths are B1, B2, and B3, in actual situations, the central wavelengths may not be exactly B1, B2, or B3, and a wavelength deviation value Δ may be actually setBCorrespondingly, the wavelength can be divided into three sub-classes, and the central wavelength range of the three sub-classes is B1 + - ΔB、B2±ΔBAnd B3. + -. ΔB；
Similarly, assuming that there are three lamp bead sub-categories in the C-category lamp bead, that is, the C-category lamp bead includes three sub-categories, and the respective central wavelengths are C1, C2, and C3, in actual situations, the central wavelengths may not be exactly C1, C2, or C3, and a wavelength deviation value Δ may be actually setCCorrespondingly, the wavelength range of the center wavelength is C1 ± ΔC、C2±ΔCAnd C3. + -. ΔC；
The difference of the central wavelength can be obtained by detecting the lamp beads by using the detection equipment in the later stage, and can also be judged by different batches during production, namely the central wavelengths of the same batch of similar lamp beads are approximately equal and belong to the same lamp bead subclass.
It should be noted that, in the embodiment of the present application, the lamp beads of the same color are not necessarily divided into three wavelength batches, and 2 wavelength batches, 3 wavelength batches or more than three wavelength batches may be layered according to the complexity of the process and the uniformity of the incoming material.
In the embodiment of the application, the lamp beads of different types are arranged, the similar lamp beads with offset central spectrum are periodically arranged on the display substrate, the consistency of the whole color of the display panel is realized, and the utilization rate and the productivity of the display lamp beads are improved.
In addition, more importantly, the subclass division is performed in a mode of confirming the slight difference of the central wavelength of each type of lamp beads, and lamp beads of different subclasses are regularly arranged under each type of lamp beads, so that the problem of display deviation is effectively solved.
Further, the manufacturing method of the LED display substrate further comprises the following steps:
the various lamp beads are arranged periodically in at least one set direction according to the corresponding lamp bead types;
the arrangement mode is to satisfy the use requirements of different LED display substrates, such as RGB three-color lamp bead display, for example, other multi-color display lamp beads, such as RGBW or RYYB, need lamp beads of different colors to carry out regular arrangement according to the requirements.
Preferably, in the method for manufacturing the LED display substrate, all the lamp beads are configured to be uniformly distributed on the LED display substrate according to the respective corresponding lamp bead types and the corresponding lamp bead subclasses;
not only in the above layout form, but according to the corresponding requirements, one of the situations in the embodiments of the present application is to uniformly distribute the lamp beads with different colors on the LED display substrate, and to uniformly distribute the lamp beads of different lamp bead subclasses of the lamp beads with different colors,
therefore, the display requirement of the LED display substrate is met on one hand, and the regional color deviation problem of the LED display substrate is solved to a certain extent on the other hand.
Further, the manufacturing method of the LED display substrate further comprises the following steps:
forming a lamp bead combination by a plurality of lamp beads, wherein the lamp bead combination comprises at least one lamp bead of a lamp bead type;
and combining a plurality of lamp beads on the LED display substrate in a periodic arrangement mode.
Further, the manufacturing method of the LED display substrate further comprises the following steps:
and each type of the lamp beads in the lamp bead combination are periodically arranged in at least one set direction according to the corresponding lamp bead subclasses.
Specifically, in the manufacturing method of the LED display substrate, the lamp bead combination comprises the lamp beads of all lamp bead subclasses of all lamp bead classes.
Further, the manufacturing method of the LED display substrate further comprises the following steps:
and arranging the lamp beads of different lamp bead types in the lamp bead combination in a periodic manner in at least one set direction.
Further, the manufacturing method of the LED display substrate further comprises the following steps:
and arranging the lamp beads of the same lamp bead type but different lamp bead types in the lamp bead combination periodically in at least one set direction.
It should be noted that, the lamp bead arrangement is performed by using a lamp bead combination mode, on one hand, various lamp beads and each subclass of the various lamp beads can be periodically arranged in each lamp bead combination, so that the various lamp beads and each subclass of the various lamp beads can be uniformly distributed, and the problem of displaying chromatic aberration is solved;
on the other hand, still can divide into a plurality of independent lamp pearl units with the lamp pearl, a plurality of lamp pearl combinations promptly arrange the lamp pearl combination to be convenient for more convenient carry out the lamp pearl and arrange, satisfy evenly distributed, solve the problem that shows the colour difference.
Further, in the method for manufacturing the LED display substrate, when the lamp beads corresponding to the lamp bead types with at least 2 lamp bead subclasses are arranged on the LED display substrate, the adjacent lamp beads of the same type have different lamp bead subclasses;
in actual operation, if the display color difference can be obtained according to the periodic arrangement or uniform arrangement mode, a better display color difference solution effect can be obtained;
however, because the reason for forming the display color difference is that the lamp beads of different sub-types of the same type of lamp beads are distributed too intensively according to the respective lamp bead sub-types, so that the display color difference between the different lamp bead sub-types can be highlighted, if the lamp beads corresponding to the lamp bead types having at least 2 lamp bead sub-types are arranged on the LED display substrate, the display color difference can be reduced to a certain extent in the aspect of the formation principle of the display color difference, and the problem of the display color difference can be solved to a certain extent.
It should be noted that, the LED display substrate in the embodiment of the present application may mainly display RGB three-color lamp beads, such as other multi-color display lamp beads, for example, RGBW or RYYB;
in addition, in the embodiment of the present application, a sub-pixel formed by RGB pixels (lamp beads) is not necessarily arranged in a rectangle or a square, and is also applicable to other pixel arrangement modes such as a diamond shape, and the like.
The RGB color scheme is a color standard in the industry, and various colors are obtained by changing three color channels of red (R), green (G), and blue (B) and superimposing the three color channels on each other, wherein RGB represents colors of the three channels of red, green, and blue, and the standard almost includes all colors that can be perceived by human vision, and is one of the most widely used color systems;
the RGBW technology is that a W white Sub-Pixel is added on the original RGB three primary colors, a four-color type Pixel design is formed, the RGBW technology is a Sub Pixel Rendering technical mode, the consistency of color expression is realized in a new Pixel arrangement mode, meanwhile, the light transmittance of the liquid crystal panel is greatly improved, when the picture with the same brightness is displayed, the power consumption is lower, and under the condition of the same power consumption, the brightness is greatly improved, so that the picture level is clearer, and the picture is more transparent;
the RYYB is formed by replacing two green pixels (G) with two yellow pixels (Y), so that the problem of light loss can be obviously reduced, and 40% of light incoming amount can be improved.
It is noted that, in the present application, 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 an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present application and are presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. An LED display substrate, characterized in that:
the LED display substrate is provided with a plurality of types of lamp beads with different light-emitting colors, and each type of lamp beads is divided into at least one lamp bead sub-type based on the central wavelength of the lamp beads;
each type of the lamp beads are arranged periodically in at least one set direction according to the corresponding lamp bead subclasses.
2. The LED display substrate of claim 1, wherein:
the various lamp beads are arranged periodically in at least one set direction according to the corresponding lamp bead types.
3. The LED display substrate of claim 1, wherein:
all the lamp beads are configured to be uniformly distributed on the LED display substrate according to the corresponding lamp bead types and the corresponding lamp bead sub-types.
4. The LED display substrate of claim 1, wherein:
the lamp beads form a lamp bead combination, and the lamp bead combination comprises at least one lamp bead of a lamp bead type;
and the lamp bead combinations are arranged on the LED display substrate periodically.
5. The LED display substrate of claim 4, wherein:
each type of the lamp beads in the lamp bead combination are periodically arranged in at least one set direction according to the corresponding lamp bead subclasses.
6. The LED display substrate of claim 4, wherein:
the lamp bead combination comprises lamp beads of all lamp bead subclasses of all lamp bead types.
7. The LED display substrate of claim 6, wherein:
the lamp beads of different lamp bead types in the lamp bead combination are arranged periodically in at least one set direction.
8. The LED display substrate of claim 6, wherein:
the lamp beads of the same lamp bead type but different lamp bead subclasses in the lamp bead combination are arranged periodically in at least one set direction.
9. The LED display substrate of claim 1, wherein:
when the lamp beads corresponding to the lamp bead types with at least 2 lamp bead subclasses are arranged on the LED display substrate, the adjacent lamp bead subclasses of the lamp beads of the same type are different.
10. A manufacturing method of an LED display substrate is characterized by comprising the following steps:
dividing all the lamp beads into different lamp bead types according to the light-emitting color;
dividing each type of lamp beads into at least one lamp bead subclass based on the central wavelength of the lamp beads;
and arranging each type of lamp beads on the LED display substrate periodically in at least one set direction according to the corresponding lamp bead subclasses according to requirements.
CN202110905912.3A 2021-08-06 2021-08-06 LED display substrate and manufacturing method thereof Active CN113745206B (en)

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