Front light plate microstructure based on nanometer texture end face

Abstract

The utility model discloses a front light plate microstructure based on a nanometer texture end face. The front light plate microstructure comprises a front light plate. The micro-nano structure is arranged on the surface of the front light plate; the LED module is arranged at the side end of the front light plate; after light enters the front light plate, the light emitting angle of the light is changed through the micro-nano structure, so that the light is evenly distributed on the front light plate. According to the utility model, the nano texture microstructure is transferred on the end face of the front light plate, so that the optical performance and the production efficiency of the front light plate are remarkably improved, the problems in the traditional process are solved, and the front light plate has important practical application value.

Description

Technical Field

[0001] The utility model relates to the technical field of microstructures of front light panels, in particular to a front light panel microstructure based on a nano-textured end surface. Background Art

[0002] As a key component in display devices, the manufacturing quality of the front light panel's end-face microstructure is directly related to the uniform distribution and transmission efficiency of light.

[0003] In the existing technology, the end face microstructure processing of the front light plate generally relies on V-CUT cutting or similar hot pressing forming processes. Although these processes can realize the forming of microstructures to a certain extent, they have many shortcomings. Specifically, the microstructures produced by methods such as V-CUT are relatively large in size, which is difficult to meet the growing demand for precision. At the same time, these large-sized microstructures are also prone to uneven light path distribution, affecting the clarity and brightness uniformity of the picture. In addition, the production efficiency of these traditional processes is relatively low, and it is difficult to meet the fast-paced requirements of large-scale production. More importantly, as the design trend of front light plates develops towards a lighter and thinner direction, the pressure and heat applied to the plate during the transfer of microstructures by traditional processes can easily cause the plate to deform, which not only increases the defective rate in the production process, but also seriously damages the optical performance of the front light plate and the overall quality of the product, becoming a bottleneck restricting the further development of front light plate technology. Utility Model Content

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art. To achieve the above purpose, a front light plate microstructure based on a nano-textured end face is adopted to solve the problems raised in the above background technology.

[0005] A front light plate microstructure based on a nano-textured end surface, comprising:

[0006] Front light panel;

[0007] A micro-nano structure provided on the surface of the front light plate; and

[0008] An LED module is provided at a side end of the front light panel;

[0009] When light enters the front light plate, the light emission angle is changed by the micro-nano structure so that the light is evenly distributed on the front light plate.

[0010] As a further solution of the present invention, the front light plate is a thin plate structure with a thickness ranging from 0.1mm to 0.4mm. This design not only reduces the overall weight but also improves the transmittance and uniformity of light, making the display device lighter and thinner while significantly improving the image quality.

[0011] As a further solution of the present invention: the size range is 4 inches to 32 inches. This wide size range can meet the needs of different application scenarios, from small portable devices to large-screen displays, thereby improving the applicability and market competitiveness of the product.

[0012] As a further solution of the present invention, the micro-nanostructure is manufactured using a nano-textured mold using a micro-machining process. This process can precisely control the morphology and distribution of the micro-nanostructure, effectively improving the light scattering effect, reducing glare, making the image clearer and more detailed, and enhancing the visual experience.

[0013] As a further solution of the present invention, the micro-nano structure is provided with protrusions, which can more effectively guide light, increase the scattering angle of light, further improve the uniformity and brightness distribution of the picture, and reduce dark corners and bright spots.

[0014] As a further solution of the present invention, the protrusions have a length range of 20 to 100 nanometers, and the spacing between adjacent protrusions ranges from 30 to 100 nanometers. This design optimizes the light scattering path, making light distribution on the screen more uniform and improving the contrast and color saturation of the image.

[0015] As a further solution of the present invention, the adjacent protrusions form an angle ranging from 20 to 40 degrees. This design can more effectively control the scattering direction of light, reduce light reflection and interference on the screen, and further improve image clarity and viewing comfort.

[0016] As a further solution of the present invention, the number of LED modules is determined based on the uniformity of the front light path. This method ensures that the light emitted by each LED module is effectively utilized by the front light, avoiding light waste and uneven brightness. This optimizes energy efficiency and reduces energy consumption while ensuring image quality.

[0017] Compared with the prior art, the present invention has the following technical effects:

[0018] By adopting the above-mentioned technical solution, a front light panel microstructure is set up based on the front light panel and the LED module, and the nano-texture microstructure is transferred on the end face of the front light panel to optimize the light path, improve the uniformity of light and light guiding efficiency, and reduce the number of LEDs required. It is particularly suitable for thinner and thinner front light panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following describes the specific implementation of the present invention in detail with reference to the accompanying drawings:

[0020] Figure 1A schematic structural diagram of the front light plate microstructure according to an embodiment disclosed in this application;

[0021] Figure 2 This is a schematic diagram of the size structure of the protrusion of the embodiment disclosed in this application;

[0022] Figure 3 This is a schematic diagram of a 2D photograph measured by an electron microscope (SEM) according to an embodiment disclosed in this application;

[0023] Figure 4 A schematic diagram of a 3D scanning photograph obtained by electron microscope (SEM) measurement according to an embodiment disclosed in this application;

[0024] Figure 5 A schematic diagram of optical path verification of an embodiment disclosed in this application;

[0025] Figure 6 Schematic diagram showing the comparison of light emission angles of the embodiments disclosed in this application.

[0026] In the figure: 1. Front light panel; 2. Micro-nano structure; 3. LED module; 4. Protrusion. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Please refer to Figure 1 In an embodiment of the present invention, a front light plate microstructure based on a nano-textured end surface includes a front light plate 1, a micro-nano structure 2, and an LED module 3;

[0029] Front light panel 1;

[0030] A micro-nano structure 2 is provided on the surface of the front light plate 1; and

[0031] An LED module 3 is provided at a side end of the front light panel 1;

[0032] When light enters the front light panel 1 , the light exit angle is changed by the micro-nano structure 2 , so that the light is evenly distributed on the front light panel 1 .

[0033] In this embodiment, the front light plate 1 is a thin plate structure with a thickness ranging from 0.1mm to 0.4mm. This design not only reduces the overall weight, but also improves the transmittance and uniformity of light, making the display device lighter and thinner and significantly improving the image quality.

[0034] In this embodiment, the size range is 4 inches to 32 inches. This wide range of sizes can meet the needs of different application scenarios, from small portable devices to large-screen displays, improving the applicability and market competitiveness of the product.

[0035] In this embodiment, the micro-nanostructure 2 is made of a nano-textured mold using a micro-machining process. This process can precisely control the shape and distribution of the micro-nanostructure 2, effectively improving the light scattering effect, reducing glare, making the image clearer and more detailed, and enhancing the visual experience.

[0036] In this embodiment, the micro-nano structure 2 is provided with protrusions 4. These protrusions 4 can more effectively guide light, increase the scattering angle of light, further improve the uniformity and brightness distribution of the picture, and reduce dark corners and bright spots.

[0037] In this embodiment, the length of the protrusions 4 ranges from 20 nanometers to 100 nanometers, and the spacing between adjacent protrusions 4 ranges from 30 nanometers to 100 nanometers. This design optimizes the light scattering path, making the light distribution on the screen more uniform, and improving the contrast and color saturation of the picture.

[0038] In this embodiment, adjacent protrusions 4 form an angle ranging from 20 to 40 degrees. This design can more effectively control the scattering direction of light, reduce light reflection and interference on the screen, and further improve picture clarity and viewing comfort.

[0039] Among them, nano-textured molds can adopt micro-machining technologies such as laser lithography, holographic technology, electron beam, ultra-precision CNC machining, and electrochemistry;

[0040] like Figure 2 As shown, the figure is a schematic diagram of the protrusion size structure; a micro-nano structure 2 with a digital design is formed on the surface, with the size of the protrusion 4 having a length A of 20 to 100 nanometers, an adjacent spacing B of 30-100 nanometers, and an angle C of 20-40 degrees.

[0041] In this embodiment, the number of LED modules 3 is determined by the uniformity of the light path of the front light panel 1. This method ensures that the light emitted by each LED module 3 is effectively utilized by the front light panel 1, avoiding light waste and uneven brightness. This optimizes energy efficiency and reduces energy consumption while ensuring image quality.

[0042] The specific design process is:

[0043] Step 1: Prepare the front light panel 1: Select the front light panel 1 of the PC sheet of the required size;

[0044] Step 2: Set up and heat the nano-texture mold: Heat the nano-texture mold to the softening temperature range of the PC material;

[0045] Step 3: Hot pressing and hot melt transfer: Use the equipment to vertically roll the heated nano-texture mold onto the end face of the light incident side of the front light plate 1, and ensure uniform pressure and cooling during the transfer process;

[0046] Step 4: Check the microstructure: Use a microscope and a scanning electron microscope to detect the nano-texture microstructure of the end surface of the front light plate 1.

[0047] In this embodiment, the softening temperature range is about 135°C to 145°C.

[0048] like Figure 3 As shown, the figure is a schematic diagram of a 2D photograph measured by an electron microscope SEM;

[0049] like Figure 4 , which is a schematic diagram of a 3D scanning photograph measured by an electron microscope SEM;

[0050] like Figure 5 As shown, the figure is a schematic diagram of optical path verification;

[0051] Light path verification is performed in the figure: verify the light path optimization effect, evaluate the uniformity of light and the number of LED lights required.

[0052] By transferring the nano-texture microstructure onto the end face of the front light plate 1 , the optical performance and production efficiency of the front light plate 1 are significantly improved, and many problems in the traditional process are solved, which has important practical application value.

[0053] like Figure 6 As shown in the figure, it is a schematic diagram of the comparison of light output angles.

[0054] The following is a comparative analysis of nano-texture microstructure and traditional V-CUT microstructure in light guide plate applications

[0055] 1. Microstructure shape and size

[0056] a. Traditional V-CUT microstructure:

[0057] Microstructure shape: continuous V-shape.

[0058] Protrusion length: 20 to 40 microns.

[0059] The angle between adjacent oblique and straight sections at the bottom is 25 to 35 degrees.

[0060] Distance between adjacent curved segments: 60 to 70 microns.

[0061] b. Nanotexture microstructure:

[0062] Microstructure shape: Nanoscale texture structure, usually less than 1 micron, more detailed than V-CUT.

[0063] Protrusion length: usually less than 1 micron, finer.

[0064] 2. Light angle

[0065] Traditional V-CUT microstructure: light output angle: about 60 degrees.

[0066] Nano-texture microstructure: Light output angle: about 120 degrees.

[0067] 3. LED quantity requirements

[0068] Traditional V-CUT microstructure: Number of LEDs: 12.

[0069] Nano-texture microstructure: Number of LEDs: 6.

[0070] 4. Light distribution

[0071] a. Traditional V-CUT microstructure:

[0072] Light distribution: High concentration, suitable for applications requiring high brightness and high concentration.

[0073] b. Nanotexture microstructure:

[0074] Light distribution: better uniformity and wider coverage, suitable for applications requiring uniform lighting over a large area.

[0075] 5. Production process and application

[0076] a. Traditional V-CUT microstructure:

[0077] Production process: Traditional hot pressing process, which is relatively mature, but the microstructure size is large.

[0078] Application: Suitable for thicker light guide plates (such as PMMA materials).

[0079] b. Nanotexture microstructure:

[0080] Production technology: adopts laser lithography, holographic technology, electron beam, ultra-precision CNC machining, electrochemistry and other micro-machining technologies.

[0081] Application: Suitable for thinner front light panels 1 (such as PC films), and can effectively transfer finer structures.

[0082] 6. Materials and Cost

[0083] a. Traditional V-CUT microstructure:

[0084] Material: PMMA light guide plate is usually used, which is thicker and more expensive.

[0085] b. Nanotexture microstructure:

[0086] Material: PC film is usually used, with a thickness of 0.1MM to 0.4MM, which is thinner and has lower cost.

[0087] Cost advantage: Since fewer LEDs are required, the overall cost can be reduced.

[0088] Summarize:

[0089] 1. The nano-texture microstructure has a wider light output angle than the traditional V-CUT microstructure and can distribute light more evenly.

[0090] 2. Nanotexture microstructures require fewer LEDs, which can reduce energy consumption and costs.

[0091] 3. The nano-texture microstructure is suitable for thinner front light panels 1, which is in line with the current trend of thinner front light panels 1.

[0092] 4. In terms of production technology, nano-texture microstructures rely on more sophisticated processing technology and can achieve smaller structural sizes.

[0093] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents, and all should be included in the scope of protection of the present invention.

Claims

1. A front light plate microstructure based on a nano-textured end surface, characterized in that: include: Front light panel (1); A micro-nano structure (2) provided on the surface of the front light plate; as well as An LED module (3) arranged at a side end of the front light panel; The micro-nano structure is made of a nano-texture mold using a micro-machining process, and the micro-nano structure is provided with a protrusion (4), the length of the protrusion ranges from 20 nanometers to 100 nanometers, and the spacing between adjacent protrusions ranges from 30 nanometers to 100 nanometers, and the adjacent protrusions form an angle, and the angle range of the angle is from 20 degrees to 40 degrees; When light enters the front light plate, the light emission angle is changed by the micro-nano structure so that the light is evenly distributed on the front light plate.

2. The front light plate microstructure based on the nano-textured end surface according to claim 1, characterized in that: The front light plate is a thin plate structure with a thickness ranging from 0.1 mm to 0.4 mm.

3. The front light plate microstructure based on the nano-textured end surface according to claim 2, characterized in that: The size of the front light panel ranges from 4 inches to 32 inches.

4. The front light plate microstructure based on the nano-textured end surface according to claim 1, characterized in that: The number of LED modules is determined by the uniformity of the light path of the front light panel.

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