Preparation method of LED lamp bead with polarized light structure, lamp bead prepared by method and display module prepared by lamp bead

Abstract

The invention discloses a preparation method of an LED lamp bead with a polarization structure, the lamp bead prepared by the method and a display module prepared by the lamp bead. The method comprises the steps that S1, the red light unit, the green light unit and the blue light unit are sequentially arranged on the substrate; s2, an arrangement area is formed on the substrate, the adjacent red light unit, green light unit and blue light unit serve as a lamp bead module, and the multiple lamp bead modules are arranged on the arrangement area according to matrix arrangement; s3, the arrangement area is filled with colloid, any lamp bead module is completely wrapped, and after the colloid is solidified, a first protection layer with the preset wrapping height is formed; s4, polarizers are arranged at the positions, corresponding to the lamp bead modules, of the first protection layer; a separation distance is formed between any two adjacent polarizers; and S5, forming cutting line cutting based on the separation distance, so as to obtain the LED lamp bead with the polarized light structure. The lamp bead with the polarized light structure is prepared through a reasonable step scheme, so that the display module is simpler to assemble and form.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of display module, especially to a preparation method of LED lamp bead with polarizing structure, the lamp bead prepared by the method and the display module prepared by the lamp bead. BACKGROUND

[0002] Display screen is the main display terminal for human beings to obtain information, especially with the development of human-computer interaction technology and big data technology, human beings no longer obtain information through information display terminal simply, but demand interactive terminal with precision and immersion, so as to realize personalized customized information push and interaction. The polarization 3D system of 3D display technology has the highest market share, and is the best accepted and most comfortable 3D display method in the market at present. Polarization 3D technology combined with high-density integrated LED has various technical advantages such as comfort, lightness, wide viewing angle, high resolution, etc., and is favored by the market; In the prior art, the arrangement of polarizing sheets on the existing LED is realized by reprocessing top type LED lamp beads or Chip type LED lamp beads. The overall processing process has high precision requirement and strict preparation conditions, and cannot form a good supply and demand relationship in the overall supply chain. Therefore, a more reasonable scheme is needed to prepare LED lamp beads with polarizing structure, so that technicians can directly equip the LED lamp beads on the substrate to form a display module. SUMMARY

[0003] In view of the technical problem that the LED lamp bead with polarizing structure cannot be prepared in the prior art, the present application provides a solution.

[0004] To achieve the above-mentioned purpose, the present application provides a preparation method of LED lamp bead with polarizing structure, comprising the following steps: S1: obtaining a substrate, and arranging red lamp units, green lamp units and blue lamp units on the substrate in sequence; S2: forming an arrangement area on the substrate, taking adjacent red lamp units, green lamp units and blue lamp units as one lamp bead module, and arranging a plurality of lamp bead modules on the arrangement area in a matrix; S3: pouring a colloid into the arrangement area, so that the colloid completely wraps any lamp bead module, and a first protective layer with a preset wrapping height is formed after the colloid is solidified; S4: arranging a polarizing sheet at a position corresponding to each lamp bead module on the first protective layer, and forming a separation distance between any adjacent polarizing sheets; S5: cutting based on the separation distance to form a cutting line, so as to obtain LED lamp bead with polarizing structure.

[0005] As an improved scheme of the present application, between step S4 and step S5, the following steps are further included: The separation interval is subjected to hole digging processing, so that multiple groups of the lamp bead modules jointly form staggered channels. Black glue is poured into the staggered channels, and the black glue forms a light shielding part with a first height after solidification, and the value of the first height is consistent with the value of the preset wrapping height.

[0006] As an improved scheme of the present application, between step S4 and step S5, the following steps are further included: The separation interval is subjected to hole digging processing, so that multiple groups of the lamp bead modules jointly form staggered channels. Black glue is poured into the staggered channels, and the black glue forms a light shielding part with a first height after solidification, and the value of the first height is the sum of the value of the preset wrapping height and the thickness value of the polarizing sheet.

[0007] As an improved scheme of the present application, before the cutting step of step S5, the following steps are further included: The glue is poured again to form a second protective layer completely covering the polarizing sheet.

[0008] As an improved scheme of the present application, in step S4, the specific arrangement of the polarizing sheet is: Multiple first sub-regions and second sub-regions are formed on the first protective layer, the polarizing sheet is divided into first specification sheets and second specification sheets, the first specification sheets are arranged on the first sub-regions, and the second specification sheets are arranged on the second sub-regions.

[0009] The present application further provides a polarizing structure LED lamp bead prepared by the preparation method of claim 1, comprising: A substrate, on which red, green and blue light units are arranged in sequence; A first protective layer, which completely covers the red, green and blue light units; A polarizing sheet, which is located at positions corresponding to the red, green and blue light units on the first protective layer; and a projection formed by the polarizing sheet completely covers projections of the red, green and blue light units.

[0010] As an improved scheme of the present application, the outer wall of the first protective layer is further provided with a light shielding part formed by solidified black glue, and the height of the light shielding part is equal to the preset wrapping height of the first protective layer.

[0011] As an improved scheme of the present application, the height value of the light shielding part is the sum of the value of the preset package height and the thickness value of the polarizer.

[0012] As an improved scheme of the present application, the surface layer of the LED lamp bead is further provided with a second protective layer, which corresponds to the top light emitting surface of the polarizer and the top of the light shielding part.

[0013] The present application also provides a display module, comprising a bottom plate and any of the aforementioned LED lamp beads, and a plurality of groups of the LED lamp beads are electrically connected to the bottom plate.

[0014] The present application has the following beneficial effects: compared with the prior art, the present application provides a preparation method of an LED lamp bead with a polarizing structure, a lamp bead prepared by the method, and a display module prepared by the lamp bead; the lamp bead with the polarizing structure is prepared by a reasonable step scheme, the product directly has a polarizing layer, which can be conveniently assembled on a bottom plate to produce a display module, the related supply chain demand relationship is optimized, and the assembly of the display module is simpler. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The present application is a process diagram; Figure 2 The present application is a product schematic diagram.

[0017] The main element symbols are explained as follows: 1, substrate; 2, red light unit; 3, green light unit; 4, blue light unit; 5, first protective layer; 6, second protective layer; 7, light shielding part; 8, polarizer. DETAILED DESCRIPTION

[0018] In order to more clearly illustrate the present application, the present application will be further described below with reference to the accompanying drawings.

[0019] In the following description, the example details are given in order to provide a more in-depth understanding of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. It should be understood that the described specific embodiments are only used to explain the present application, and are not used to limit the present application.

[0020] It should be understood that when the terms "comprise" and / or "include" are used in the specification, it means that the features, integers, steps, operations, elements, or components exist, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

[0021] To solve the above-mentioned technical problems, the application provides a preparation method of an LED lamp bead with a polarizing structure. Please refer to the attached Figure 1 to the attached Figure 2 , comprising the following steps: S1: Obtain a substrate 1, and red lamp units 2, green lamp units 3 and blue lamp units 4 are arranged on the substrate 1 in sequence; the substrate 1 serves as the main carrier of the red lamp units 2, the green lamp units 3 and the blue lamp units 4, and as the main support structure in the preparation stage to facilitate the overall scheme to be processed; S2: Form an arrangement area on the substrate 1, take adjacent red lamp units 2, green lamp units 3 and blue lamp units 4 as one lamp bead module, and arrange multiple lamp bead modules on the arrangement area in a matrix; the arrangement area is used to distinguish the non-processing area and the processing area, and the non-processing area can be quickly distinguished and cut in the subsequent stage to obtain the main target product; S3: Pour a colloid into the arrangement area to completely wrap any lamp bead module, and form a first protective layer 5 with a preset wrapping height after the colloid is solidified; the first protective layer 5 is used to effectively protect the lamp bead module, prevent dust and dirt from adhering between the red lamp units 2, the green lamp units 3 and the blue lamp units 4, and affect the working performance of the working lamp bead module; and the main material of the colloid is a polymer base material, such as acrylate and polyurethane, which has the characteristics of transparency, temperature resistance, wear resistance and the like to match the process of the application; S4: The position corresponding to each lamp bead module of the first protective layer 5 is arranged with a polarizing sheet 8; a separation distance is formed between any adjacent polarizing sheets 8; the polarizing sheet 8 processes the light emitted by the lamp bead module to deflect in the intended direction, thereby realizing the 3D visual display effect; the application and mechanism of the polarizing sheet 8 are prior art, and therefore will not be described in detail; S5: Cut based on the separation distance to form a cutting line, that is, obtain an LED lamp bead with a polarizing structure; the LED lamp bead is used as the main raw material to be assembled on a bottom plate with a specific starting single circuit to form a display module.

[0022] The above steps S1-S5 constitute a reasonable step scheme to prepare a lamp bead with a polarizing structure. Such a product directly has a polarizing layer, which can be easily assembled on a bottom plate by a technician to produce a display module, optimizes the supply and demand relationship of the related supply chain, and makes the assembly and forming of the display module simpler.

[0023] In this embodiment, between step S4 and step S5, the following steps are further included: The separation distance is subjected to hole digging treatment to make multiple groups of lamp bead modules form staggered channels together; The black glue is poured into the staggered channels, and the black glue is solidified to form the light shielding part 7 with a first height, and the value of the first height is consistent with the value of the preset wrapping height; It is not difficult to understand that the main material of the black glue is the glue body for forming the light shielding part 7, which is formed by using industrial epoxy resin, polyurethane, and silicone as the main raw materials, thereby effectively preventing the side light emitting part of the LED lamp bead from forming interference light to affect the imaging quality in the later stage.

[0024] In another embodiment, between step S4 and step S5, the following steps are further included: The separation distance is processed by hole digging to make the multiple groups of lamp bead modules jointly form staggered channels; The black glue is poured into the staggered channels, and the black glue is solidified to form the light shielding part 7 with a first height, and the value of the first height is the sum of the value of the preset wrapping height and the thickness value of the polarizing sheet 8; after the volume height of the light shielding part 7 is solidified, the light shielding part 7 collectively performs light shielding processing on the lamp bead module and the side light emitting part of the polarizing sheet 8, which avoids the side light leakage of the lamp bead module, and after the height of the light shielding part 7 is increased, the polarizing sheet 8 will not form a light exposure phenomenon from the side, further reducing the interference of stray light, and making the display quality better.

[0025] In this embodiment, before the cutting step of step S5, the following steps are further included: The glue is poured again to form a second protective layer 6 that completely covers the polarizing sheet 8; It is not difficult to understand that the second protective layer 6 cooperates with the first protective layer 5, and the first protective layer 5 and the second protective layer 6 can be understood as layered structures that play a protective role, and have a better protective effect. Specifically, the second protective layer 6 cooperates with the first protective layer 5 to cover the polarizing sheet and the light shielding part 7, so as to more firmly protect the polarizing sheet, and thereby can package the working performance of the subsequent finished product.

[0026] In this embodiment, in step S4, the specific arrangement of the polarizing sheet 8 is as follows: A plurality of first sub-regions and second sub-regions are formed on the first protective layer 5, the polarizing sheet 8 is divided into a first specification sheet and a second specification sheet, the first specification sheet is arranged on the first sub-region, and the second specification sheet is arranged on the second sub-region; the first specification sheet and the second specification sheet are arranged through the first sub-region and the second sub-region, and after the display module is processed subsequently, in terms of the light path, the first specification sheet and the second specification sheet are needed to form first emergent light and second emergent light, the first emergent light and the second emergent light are mirror-distributed on an emergent light normal line between the corresponding first specification sheet 51 and the second specification sheet 52; in this case, the first specification sheet 51 and the second specification sheet 52 form the corresponding emergent light normal line whether in the longitudinal direction or in the transverse direction, and this mode makes the display effect of the display module better.

[0027] The application also provides a LED lamp bead with a polarizing structure, which is prepared by the preparation method in claim 1, comprising: a substrate 1, wherein the substrate 1 is formed with a red lamp unit 2, a green lamp unit 3 and a blue lamp unit 4 arranged in sequence; a first protective layer 5, wherein the first protective layer 5 completely covers the red lamp unit 2, the green lamp unit 3 and the blue lamp unit 4; a polarizing sheet 8, wherein the polarizing sheet 8 is located at positions corresponding to the red lamp unit 2, the green lamp unit 3 and the blue lamp unit 4 of the first protective layer 5, and a projection formed by the polarizing sheet 8 completely covers the projections of the red lamp unit 2, the green lamp unit 3 and the blue lamp unit 4.

[0028] In the LED lamp bead, the polarizing sheet 8 structure is directly provided, which can facilitate technicians to assemble the display module on the bottom plate, optimizes the supply and demand relationship of the related supply chain, and makes the assembly of the display module simpler and the whole more convenient to use.

[0029] In the embodiment, the outer wall of the first protective layer 5 is further provided with a light shielding part 7 formed by black glue solidification, the height of the light shielding part 7 is equal to the preset wrapping height of the first protective layer 5, and the light shielding part 7 can effectively prevent the side light emitting part of the LED lamp bead from forming interference light to affect the imaging quality in the later stage.

[0030] In another embodiment, the height value of the light shielding part 7 is the sum of the preset wrapping height value and the thickness value of the polarizing sheet 8, and the light shielding part 7 collectively performs light shielding treatment on the lamp bead module and the side light emitting part of the polarizing sheet 8 at the volume height after the solidification of the light shielding part 7 is increased, which can avoid light leakage on the side of the lamp bead module, and after the height of the light shielding part 7 is increased, the polarizing sheet 8 will not form light exposure from the side, further reduces the interference of stray light, and makes the display quality better.

[0031] In the embodiment, the surface layer of the LED lamp bead is further provided with a second protective layer 6, the second protective layer 6 corresponds to the top light emitting surface of the polarizing sheet 8 and the top of the light shielding part 7, and the second protective layer 6 cooperates with the first protective layer 5, the first protective layer 5 and the second protective layer 6 can be understood as layered structures for protection, and have better protection effect, specifically, the second protective layer 6 cooperates with the first protective layer 5 to cover the polarizing sheet and the light shielding part 7, so as to more firmly protect the polarizing sheet and further improve the working performance of the subsequent finished product.

[0032] The application further provides a display module, comprising a bottom plate and any of the LED lamp beads, and a plurality of groups of LED lamp beads are electrically connected to the bottom plate; when any of the LED lamp beads works, a main light path formed by the LED lamp bead is deflected to an expected direction through the corresponding polarizing sheet 8; the display module has the same technical features as the foregoing embodiments in the embodiment, thus having the same technical effects in simplifying production, and details are not described herein.

[0033] The application has the following advantages: The reasonable step scheme is adopted to prepare the lamp bead with the polarizing structure, the lamp bead directly has the polarizing layer, the technical personnel can conveniently assemble the lamp bead on the bottom plate to produce the display module, the supply and demand relationship of the related supply chain is optimized, and the display module assembly is simpler.

[0034] The above disclosure is only some specific embodiments of the application, but the application is not limited thereto, and any changes that can be thought of by those skilled in the art shall fall within the protection scope of the application.

Claims

1. A method for preparing an LED bead with a polarizing structure, characterized in that, Includes the following steps: S1: Obtain a substrate on which red light units, green light units and blue light units are arranged in sequence. S2: An arrangement area is formed on the substrate, and multiple LED modules are arranged in a matrix on the arrangement area, with each adjacent red LED unit, green LED unit, and blue LED unit forming an LED module. S3: Inject colloid into the arrangement area so that the colloid completely encapsulates any of the LED modules. After the colloid solidifies, it forms a first protective layer with a preset encapsulation height. S4: A polarizer is arranged at the position of each of the lamp bead modules in the first protective layer; a separation gap is formed between any adjacent polarizers; S5: Cut the LED beads with a polarizing structure by forming a cutting line based on the separation distance.

2. The method for preparing LED beads with a polarizing structure according to claim 1, characterized in that, Between step S4 and step S5, the following steps are also included: The separation spacing is perforated to allow multiple sets of LED modules to form interlaced channels. Black glue is poured into the interlaced channels, and after the black glue solidifies, it forms a light-blocking part of a first height, the value of which is consistent with the value of the preset wrapping height.

3. The method for preparing LED beads with a polarizing structure according to claim 2, characterized in that, Between step S4 and step S5, the following steps are also included: The separation spacing is perforated to allow multiple sets of LED modules to form interlaced channels. Black glue is poured into the interlaced channels. After the black glue solidifies, it forms a light-shielding part of a first height. The value of the first height is the sum of the preset wrapping height and the thickness of the polarizer.

4. The method for preparing LED beads with a polarizing structure according to claim 2, characterized in that, Before the cutting step in step S5, the method further includes: The colloid is injected again to form a second protective layer that completely covers the polarizer.

5. The method for preparing an LED bead with a polarizing structure according to any one of claims 1, characterized in that, In step S4, the polarizer is specifically arranged as follows: Multiple first sub-regions and second sub-regions are formed on the first protective layer. The polarizer is divided into a first specification sheet and a second specification sheet. The first specification sheet is arranged on the first sub-region, and the second specification sheet is arranged on the second sub-region.

6. An LED lamp bead with a polarizing structure, characterized in that, Prepared by the preparation method according to claim 1, comprising: A substrate on which red light units, green light units and blue light units are arranged in sequence. A first protective layer, which completely covers the red light unit, the green light unit, and the blue light unit; A polarizing film is located on the first protective layer at positions corresponding to the red light unit, the green light unit, and the blue light unit; the projection formed by the polarizing film completely covers the projections of the red light unit, the green light unit, and the blue light unit.

7. The LED lamp bead with a polarizing structure according to claim 6, characterized in that, The outer wall of the first protective layer is also provided with a light-shielding part formed by the solidification of black glue, and the height of the light-shielding part is equal to the preset wrapping height of the first protective layer.

8. The method for preparing LED beads with a polarizing structure according to claim 7, characterized in that, The height of the light-shielding part is the sum of the preset wrapping height and the thickness of the polarizer.

9. The method for preparing an LED bead with a polarizing structure according to any one of claims 7-8, characterized in that, The surface of the LED bead is further provided with a second protective layer, which covers the top light-emitting surface of the polarizer and the top of the light-shielding part.

10. A display module, characterized in that, Includes a base plate and LED beads as described in any one of claims 6-9, wherein multiple sets of LED beads are electrically connected to the base plate; when any one of the LED beads is working, the main light path formed by the LED beads is deflected to the expected direction by a corresponding polarizer.

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