A hot-pressing dot cluster arrangement processing technology for improving the efficiency of BLU picture improvement
By using a clustered dot arrangement process, the transfer problem when the dot density of the light guide plate is greater than 50% was solved, achieving efficient light guide plate processing and improving the quality and efficiency of BLU images.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- QINHUANGDAO QINKAI COMPREHENSIVE BAO PARK DEVELOPMENT CO LTD
- Filing Date
- 2023-11-02
- Publication Date
- 2026-05-29
AI Technical Summary
The existing dot arrangement of light guide plates results in insufficient dot spacing when the density is greater than 50%, which affects the transfer effect, leads to poor hot pressing, and makes it difficult to meet the requirements of ultra-thin black borders.
The process employs a clustered dot arrangement technique. The light guide plate is designed using CAD software and processed in segments. The density and shape of the dots are controlled by CNC machine tools and multi-zone heating elements and pressure regulating devices of hot pressing molds, ensuring that the gap between clusters is greater than 40%.
It improves the transfer effect and dot density adjustment range of the light guide plate, enhances the efficiency of BLU image improvement, and meets the requirements of ultra-thin black borders.
Smart Images
Figure CN117465039B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of light guide plate dot processing technology, and particularly relates to a hot-pressing dot clustering processing technology to improve BLU image quality. Background Technology
[0002] Currently, in the backlight industry, BLUs (Light Guide Plates) are trending towards ultra-thin thickness and ultra-narrow bezels. Hot-pressing has become the mainstream process for processing light guide plate dots, demanding higher quality from the BLU image. The arrangement of hot-pressed dots directly affects the efficiency of improving BLU image quality, making the search for more efficient dot arrangement methods a necessary trend.
[0003] Existing methods for arranging hot-pressed dots on light guide plates include: random arrangement (see...) Figure 4 ), Variable spacing random number arrangement (see Figure 3 ), matrix arrangement (see Figure 2 However, these halftone dot arrangements have upper limits on dot density. When the dot density exceeds 50%, poor hot pressing and printing will occur, which is not conducive to adjusting the BLU image.
[0004] Therefore, through research on the hot pressing process, when the dot density is greater than 50%, random number arrangement (see...) Figure 4 ), Variable spacing random number arrangement (see Figure 3 ), matrix arrangement (see Figure 2 The gap between dots in the hot pressing method is equal to 20%-30% of the dot diameter. The limitations of the hot pressing equipment (pressure and temperature parameters) and LGP (thickness tolerance and dimensional tolerance) directly affect the transfer effect. Summary of the Invention
[0005] The purpose of this invention is to propose a hot-press dot clustering processing technology to improve the efficiency of BLU image enhancement when the dot density of existing light guide plates is greater than 50%, the gap between the dots is equal to 20%-30% of the dot diameter, which affects the transfer effect of the light guide plate.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a hot-pressing halftone dot clustering processing technology to improve BLU image quality, comprising the following steps:
[0007] S1: Light guide plate design. Use CAD software to draw the design drawings of the light guide plate. In the software, you can set the size, shape and arrangement of the dots as needed, and export the G-code program for use by CNC machine tools.
[0008] S2: Material selection and pretreatment. Select materials with good light transmittance and thermal stability as light guide plate materials. At the same time, perform necessary cleaning and drying pretreatment on the materials before processing to remove dirt and moisture from the material surface and prevent errors during processing.
[0009] S3: Installation and calibration: Install the light guide plate material onto the CNC machine tool and calibrate the tool's rotation speed, feed rate, and machining depth;
[0010] S4: Based on the design requirements of the light guide plate, design and select an appropriate hot pressing mold, and divide the hot pressing mold into several independent areas, each area having different heating elements and pressure regulating devices;
[0011] S5: Segmented processing, dividing the light guide plate into multiple areas, each area corresponding to a different dot arrangement. By setting different processing parameters in the G-code program, the dot density and shape of each area can be controlled, thereby forming the dot arrangement of the light guide plate;
[0012] S6: Inspection and analysis. After processing, the dot density of the light guide plate needs to be inspected and analyzed, and then optimized.
[0013] As a further description of the above technical solution:
[0014] The hot-pressing mold has multiple independent areas that match the multiple areas of the light guide plate.
[0015] As a further description of the above technical solution:
[0016] In S5, the light guide plate has clustered dots.
[0017] As a further description of the above technical solution:
[0018] In the clustered dot arrangement, the gap between clusters is greater than 40% of the length of the clustered dots.
[0019] As a further description of the above technical solution:
[0020] When the light guide plate is hot-pressed in a CNC machine tool, the hot-pressing temperature is gradually reduced.
[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:
[0022] 1. In this invention, the design drawings of the light guide plate are drawn using CAD software. The size, shape, and arrangement of the dots can be set in the software as needed, and the G-code program can be exported for use by CNC machine tools. Then, a material with good light transmittance and thermal stability is selected as the light guide plate material, which is cleaned and dried. The light guide plate is placed in a calibrated CNC machine tool. The hot pressing mold in the CNC machine tool is divided into multiple areas, each of which is equipped with heating elements and pressure adjustment devices. By adjusting the parameters of the heating elements and pressure adjustment devices in multiple areas, multiple areas on the light guide plate are hot-pressed to form clustered dots. The clustered arrangement of dots greatly increases the gap between clusters, ensuring that even when the dot density reaches 100%, the gap between clusters is greater than 40% of the length of the clustered dots. This fully meets the transfer requirements of the hot pressing equipment. The increased range of density adjustment is more beneficial for BLU image adjustment, thereby greatly improving the efficiency of BLU image enhancement.
[0023] 2. In this invention, the upper limit constraint of multi-dot density in hot pressing process is solved, which is more conducive to solving the BLU image problem through dot arrangement. Attached Figure Description
[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 This is a clustered dot pattern produced by a hot-pressing dot clustering process to improve the efficiency of BLU image enhancement.
[0026] Figure 2 The background diagram shows the dot matrix arrangement of the light guide plate.
[0027] Figure 3 The background diagram shows a random arrangement of dots with varying spacing in a light guide plate.
[0028] Figure 4 The background image shows a random arrangement of dots on a light guide plate. Detailed Implementation
[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0031] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.
[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0033] In the description of the embodiments of the present invention, it should be noted that the terms "upper" and "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.
[0034] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0035] Please see Figure 1-4 This invention provides a technical solution: a hot-pressing halftone dot clustering processing technology to improve BLU image quality, S1: light guide plate design, using CAD software to draw the design drawings of the light guide plate, in which the size, shape and arrangement of the halftone dots can be set as needed, and guided...
[0036] Output G-code programs for use by CNC machine tools;
[0037] S2: Material selection and pretreatment. Select materials with good light transmittance and thermal stability as light guide plate materials. At the same time, perform necessary cleaning and drying pretreatment on the materials before processing to remove dirt and moisture from the material surface and prevent errors during processing.
[0038] S3: Installation and calibration: Install the light guide plate material onto the CNC machine tool and calibrate the tool's rotation speed, feed rate, and machining depth;
[0039] S4: Based on the design requirements of the light guide plate, design and select an appropriate hot pressing mold, and divide the hot pressing mold into several independent areas, each area having different heating elements and pressure regulating devices;
[0040] S5: Segmented processing, dividing the light guide plate into multiple areas, each area corresponding to a different dot arrangement. By setting different processing parameters in the G-code program, the dot density and shape of each area can be controlled, thereby forming the dot arrangement of the light guide plate;
[0041] S6: Inspection and analysis. After processing, the dot density of the light guide plate needs to be inspected and analyzed, and then optimized.
[0042] The hot-pressing mold has multiple independent areas that match multiple areas of the light guide plate. By setting different processing parameters in the G-code program, the dot density and shape of each area can be controlled to achieve a clustered arrangement. This processing technology can also form a clustered dot arrangement by adjusting the processing coordinates.
[0043] In S5, the light guide plate has clustered dots.
[0044] In a clustered dot arrangement, the gap between clusters is greater than 40% of the length of the clustered dots. Several dots are tightly grouped together to form a clustered arrangement, such as... Figure 1 The clustered arrangement significantly increases the gap between clusters. Even when the dot density reaches 100%, the gap between clusters can be greater than 40% of the length of the clustered dots, which can fully meet the needs of hot press equipment transfer. The increased range of density adjustment is more beneficial for BLU image adjustment, thereby greatly improving the efficiency of BLU image enhancement.
[0045] When the light guide plate is hot-pressed in a CNC machine tool, the hot-pressing temperature is gradually reduced. After the hot pressing reaches a certain time, the hot pressing temperature is gradually reduced while maintaining a certain pressure, so that the light guide plate material can gradually cool and solidify, avoiding defects such as cracks in the light guide plate material.
[0046] Working Principle: The design drawings of the light guide plate are created using CAD software. The size, shape, and arrangement of the dots can be set as needed within the software, and G-code programs can be exported for use by CNC machine tools. A material with good light transmittance and thermal stability is selected as the light guide plate material, and it is cleaned and dried. The light guide plate is then placed in a calibrated CNC machine tool. The hot pressing mold within the CNC machine tool is divided into multiple areas, each equipped with heating elements and pressure regulating devices. By adjusting the parameters of the heating elements and pressure regulating devices in these areas, multiple areas on the light guide plate are hot-pressed to form clustered dots. The clustered arrangement of the dots significantly increases the gap between clusters, ensuring that even with a dot density of 100%, the gap between clusters is greater than 40% of the length of the clustered dots. This fully meets the transfer requirements of hot pressing equipment. The increased adjustable density range is more beneficial for BLU image adjustment, thereby greatly improving the efficiency of BLU image enhancement.
[0047] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. A hot-pressing halftone dot cluster arrangement processing technology to improve BLU image quality, characterized in that, Includes the following steps: S1: Light guide plate design. Use CAD software to draw the design drawings of the light guide plate. In the software, you can set the size, shape and arrangement of the dots as needed, and export the G-code program for use by CNC machine tools. S2: Material selection and pretreatment. Select materials with good light transmittance and thermal stability as light guide plate materials. At the same time, perform necessary cleaning and drying pretreatment on the materials before processing to remove dirt and moisture from the material surface and prevent errors during processing. S3: Installation and calibration: Install the light guide plate material onto the CNC machine tool and calibrate the tool's rotation speed, feed rate, and machining depth; S4: Based on the design requirements of the light guide plate, design and select an appropriate hot pressing mold, and divide the hot pressing mold into several independent areas, each area having different heating elements and pressure regulating devices; S5: Segmented processing divides the light guide plate into multiple regions, each corresponding to a different dot arrangement. By setting different processing parameters in the G-code program, the dot density and shape of each region can be controlled, thus forming the dot arrangement of the light guide plate; multiple independent regions of the hot pressing mold match multiple regions of the light guide plate; the dot arrangement of the light guide plate in S5 is clustered. In the clustered dot arrangement, the gap between clusters is greater than 40% of the length of the clustered dots; S6: Inspection and analysis. After processing, the dot density of the light guide plate needs to be inspected and analyzed, and then optimized.
2. The hot-press halftone dot clustering processing technology for improving BLU image quality according to claim 1, characterized in that, When the light guide plate is hot-pressed in a CNC machine tool, the hot-pressing temperature is gradually reduced.