CN110941042A - Light guide plate processing method and light guide plate - Google Patents
Light guide plate processing method and light guide plate Download PDFInfo
- Publication number
- CN110941042A CN110941042A CN201911049806.9A CN201911049806A CN110941042A CN 110941042 A CN110941042 A CN 110941042A CN 201911049806 A CN201911049806 A CN 201911049806A CN 110941042 A CN110941042 A CN 110941042A
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- CN
- China
- Prior art keywords
- light guide
- guide plate
- hole
- oval
- drill
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0065—Manufacturing aspects; Material aspects
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/16—Perforating by tool or tools of the drill type
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
Abstract
The embodiment of the invention provides a light guide plate processing method and a light guide plate, wherein the light guide plate processing method comprises the following steps: performing injection molding by adopting an injection molding process to obtain a planar light guide plate; placing the planar light guide plate in a drilling apparatus; a drill bit of the drilling equipment moves to a preset position, and the drill bit is positioned above the plane light guide plate; drilling a circular through hole on the planar light guide plate; and according to the light guide direction of the light guide plate, the drill bits are moved in the same direction to form the oval runway through holes. The through hole on the light guide plate processed by the light guide plate craftsman method is an oval runway through hole, the oval runway through hole is formed in the shape of the light guide plate through hole, and the problem that when a light source in the light guide plate touches a device in the through hole, light is reflected back to the light guide plate, and the backlight brightness distribution is uneven can be avoided.
Description
Technical Field
The invention relates to the field of liquid crystal displays, in particular to a light guide plate processing method and a light guide plate.
Background
Along with the development of smart phones, the requirement of the mobile phones on the attractiveness is higher and higher, the screen occupation ratio of the smart phones is higher and higher, namely the proportion of the front display screen occupying the front of the whole mobile phone, along with the improvement of the screen occupation ratio, components originally arranged around a screen assembly do not have enough space to place the components, wherein a camera is a relatively large-size component in the components, but in order to keep the front camera function of the mobile phone, the screen occupation ratio can be further improved, and screen manufacturers start to move the camera installation positions to the display screen from the periphery of the display screen.
Backlight unit is as LCD's backlight, play very important effect in LCD, in the backlight unit who uses on present cell-phone, the LED light source all jets out from a side of backlight unit usually, the light guide plate just plays the effect in evenly conducting whole backlight unit with the light source in backlight unit, because the position of camera moves in the display screen after, just need punch in the display screen and install the camera, consequently, it is very important to the camera scheme under the screen that realizes LCD to propose a method of punching of light guide plate.
Disclosure of Invention
The embodiment of the invention aims to provide a light guide plate processing method and a light guide plate, so as to realize the purpose of punching holes on the light guide plate.
In order to achieve the above object, an embodiment of the present invention provides a light guide plate processing method, including: performing injection molding by adopting an injection molding process to obtain a planar light guide plate;
placing the planar light guide plate in a drilling apparatus;
a drill bit of the drilling equipment moves to a preset position, and the drill bit is positioned above the plane light guide plate;
drilling a circular through hole on the planar light guide plate;
and moving the drill bit in the same direction to form an oval runway through hole according to the light guide direction of the light guide plate.
Optionally, after the forming of the oval track through hole, the method further includes:
and (5) using a dust outlet device to remove impurities generated in processing in time.
Optionally, the drill bit is a rotary gong-cutter.
Optionally, the moving the drill bit in the same direction to form the oval track through hole according to the light guide direction of the light guide plate includes:
the drill bit moves along the light guide direction, moves against the light guide direction, and moves back and forth along the light guide direction in any moving mode.
An embodiment of the present invention further provides a light guide plate, including: the light guide plate comprises a light guide plate body and oval runway through holes formed in the light guide plate body.
The embodiment of the present invention further provides a backlight module, which includes: the light guide plate and the backlight assembly; the backlight assembly is provided with a circular through hole corresponding to the oval runway through hole of the light guide plate, and the diameter of the circular through hole is the same as the width of the oval runway through hole.
An embodiment of the present invention further provides a liquid crystal display, where the liquid crystal display includes: the backlight module and the liquid crystal assembly arranged above the backlight module.
The embodiment of the invention provides a light guide plate processing method and a light guide plate, wherein the light guide plate processing method comprises the following steps: performing injection molding by adopting an injection molding process to obtain a planar light guide plate; placing the planar light guide plate in a drilling apparatus; a drill bit of the drilling equipment moves to a preset position, and the drill bit is positioned above the plane light guide plate; drilling a circular through hole on the planar light guide plate; and according to the light guide direction of the light guide plate, the drill bits are moved in the same direction to form the oval runway through holes. The through hole on the light guide plate processed by the light guide plate craftsman method is an oval runway through hole, the oval runway through hole is formed in the shape of the light guide plate through hole, and the problem that when a light source in the light guide plate touches a device in the through hole, light is reflected back to the light guide plate, and the backlight brightness distribution is uneven can be avoided.
Drawings
Fig. 1 is a flowchart of a light guide plate processing method according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a rotary gong cutter according to an embodiment of the present invention;
fig. 3 is a schematic view illustrating a shape of a light guide plate according to a second embodiment of the present invention;
fig. 4 is a schematic shape diagram of a backlight module according to a second embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The light guide plate is as the important part in whole backlight unit with LED light source conduction and evenly distributed among the backlight unit, the structure of pipe board plays very important effect to the light evenly distributed among the backlight unit, it can destroy the wholeness of light guide plate to punch on the light guide plate, lead to the inhomogeneous problem of light distribution of backlight source to appear easily, for example, the problem such as shadow and bright spot appears, consequently to the shape of punching on the light guide plate, and the flow of punching all need carry out redesign, with the inhomogeneous problem of light distribution that influences the backlight source of solving or avoiding appearing as far as possible.
The first embodiment:
the embodiment provides a method for processing a light guide plate, and the steps of processing the light guide plate can be seen in fig. 1, the steps include:
s101, performing injection molding by adopting an injection molding process to obtain the planar light guide plate.
The injection molding process for manufacturing the light guide plate is a mature process for manufacturing the planar light guide plate at present, and the light guide plate manufactured in the step is a traditional planar light guide plate.
S101, placing the planar light guide plate in drilling equipment.
After the light guide plate is manufactured, holes need to be formed in the light guide plate, and the hole forming mode of the embodiment is realized by adopting a drilling device.
S101, moving a drill bit of the drilling equipment to a preset position.
After the light guide plate is placed in the drilling equipment, the drilling equipment can move the drill bit above the planar light guide plate to a preset position according to a preset program, wherein the position is the central point of the through hole in the light guide plate.
S101, drilling a circular through hole on the plane light guide plate.
When the drill moves to the preset position, the drill starts to drill a circular through hole on the light guide plate, and the size of the circular through hole can be adjusted according to the size of a device to be installed.
S101, moving the drill bit to form an oval runway through hole.
After the drill drills out the circular through hole, the structure of the through hole is continuously processed, so that the problem of uneven light distribution affecting a backlight source is solved or avoided as much as possible. Therefore, considering that the shape of the through-hole needs to be avoided and less influence on the light source is taken into consideration, the drill bits are moved in the same direction to form the oval track through-hole according to the light guiding direction of the light guide plate. That is, the length direction of the formed oval track through hole is the same as the light guide direction of the light guide plate, and the width direction is perpendicular to the light guide direction of the light guide plate.
In this embodiment, after the oval track through hole is formed by machining, the method further includes: and (5) using a dust outlet device to remove impurities generated in processing in time. The dust removing device can be a dust removing device of the drilling equipment, or can be a dust removing device arranged independently.
In this embodiment, the drill bit is a rotary gong cutter. The structure of the rotary gong-knife can be seen in fig. 2, and the rotary gong-knife comprises: a rotary tool holder 201, a tool shaft 202 and a milling cutter 203. The width of the gong knife 203 and the knife shaft 202 of the rotary gong knife is less than or equal to the radius of the drilled through hole.
In this embodiment, the forming the oval racetrack via hole by moving the drill bit in the same direction according to the light guide direction of the light guide tube plate includes: the drill bit moves along the light guide direction, moves against the light guide direction and moves back and forth along the light guide direction in any moving mode. The drill bit adopts a direction to move, so that the processing steps can be reduced, the drill bit can adopt a back-and-forth movement mode to reduce the processing error, and in the practical use, the moving direction of the drill bit can be selected according to the practical situation.
The embodiment provides a light guide plate processing method, which comprises the following steps: performing injection molding by adopting an injection molding process to obtain a planar light guide plate; placing the planar light guide plate in a drilling apparatus; moving a drill bit of the drilling equipment to a preset position, wherein the drill bit is positioned above the plane light guide plate; drilling a circular through hole on the planar light guide plate; and according to the light guide direction of the light guide plate, the drill bits are moved in the same direction to form the oval runway through holes. The through holes on the light guide plate produced by the light guide plate processing method are oval runway through holes, and the problem that the backlight brightness distribution is uneven when light in the light guide plate is reflected back to the light guide plate when a light source in the light guide plate touches devices in the through holes can be solved because the through holes on the light guide plate are oval runway through holes.
Second embodiment:
this embodiment provides a light guide plate, and the shape of the duct board can be seen in fig. 3. The light guide plate includes: the light guide plate comprises a light guide plate body and oval runway through holes in the light guide plate body.
The light guide plate is produced by adopting the light guide plate processing method of the first embodiment, and the through holes in the light guide plate are set to be the oval runway through holes, so that the problem that when a light source in the light guide plate touches a device in the through holes, light is reflected back into the light guide plate, and the backlight brightness distribution is uneven can be avoided.
The embodiment also provides a backlight assembly, and the shape of the backlight module can be seen in fig. 3. The backlight module includes: the light guide plate and the backlight assembly; the backlight assembly is provided with a circular through hole corresponding to the oval runway through hole of the light guide plate, and the diameter of the circular through hole is the same as the width of the oval runway through hole.
The present embodiment also provides a liquid crystal display, including: the backlight module and the liquid crystal assembly arranged above the backlight module.
This embodiment provides a light guide plate, the through-hole on this light guide plate is oval runway through-hole, and the length direction of oval runway through-hole is the same with the leaded light direction of light guide plate, make after the assembly is accomplished, the device in the through-hole is not direct with the edge contact of through-hole in the leaded light direction both sides of light guide plate, but has formed the one deck air bed between device and pipe board, make light by the scattering when arriving in the air bed, thereby avoid being reflected back to the light guide plate by the device, lead to the edge luminance of through-hole to increase, make backlight unit's the inhomogeneous problem of cloth light.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments. Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation method.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. A light guide plate processing method is characterized by comprising the following steps: performing injection molding by adopting an injection molding process to obtain a planar light guide plate;
placing the planar light guide plate in a drilling apparatus;
moving a drill of the drilling equipment to a preset position, wherein the drill is positioned above the plane light guide plate;
drilling a circular through hole on the planar light guide plate;
and moving the drill bit in the same direction to form an oval runway through hole according to the light guide direction of the light guide plate.
2. The method for processing a light guide plate according to claim 1, wherein the step of forming the oval racetrack via holes further comprises:
and (5) using a dust outlet device to remove impurities generated in processing in time.
3. The method for processing a light guide plate according to claim 1, wherein the drill is a rotary gong cutter.
4. The method for processing a light guide plate according to claim 1, wherein the moving the drills in the same direction to form the oval racetrack through holes according to the light guide direction of the light guide plate comprises:
the drill bit moves along the light guide direction, moves against the light guide direction, and moves back and forth along the light guide direction in any moving mode.
5. A light guide plate, comprising: the light guide plate comprises a light guide plate body and oval runway through holes formed in the light guide plate body.
6. A backlight module is characterized in that the backlight module comprises: the light guide plate according to claim 5, and a backlight assembly;
the backlight assembly is provided with a circular through hole corresponding to the oval runway through hole of the light guide plate, and the diameter of the circular through hole is the same as the width of the oval runway through hole.
7. A liquid crystal display, comprising: the backlight module of claim 6, and a liquid crystal assembly disposed over the backlight module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911049806.9A CN110941042A (en) | 2019-10-31 | 2019-10-31 | Light guide plate processing method and light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911049806.9A CN110941042A (en) | 2019-10-31 | 2019-10-31 | Light guide plate processing method and light guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110941042A true CN110941042A (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911049806.9A Pending CN110941042A (en) | 2019-10-31 | 2019-10-31 | Light guide plate processing method and light guide plate |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8451399B2 (en) * | 2010-03-26 | 2013-05-28 | Hitachi Displays, Ltd. | Liquid crystal display device |
| CN204164814U (en) * | 2014-09-18 | 2015-02-18 | 深圳市康冠技术有限公司 | Backlight module |
| CN108663744A (en) * | 2018-07-18 | 2018-10-16 | 深圳市宝明科技股份有限公司 | A kind of light guide plate of hole structure |
| CN109655960A (en) * | 2019-02-26 | 2019-04-19 | 厦门天马微电子有限公司 | A kind of backlight module and display device |
| CN109760272A (en) * | 2018-12-11 | 2019-05-17 | 深圳市德仓科技有限公司 | Light guide plate injection moulding process, equipment and light guide plate, backlight module, display equipment |
| CN110045452A (en) * | 2019-03-28 | 2019-07-23 | 武汉华星光电技术有限公司 | Light guide plate, backlight module and display device |
-
2019
- 2019-10-31 CN CN201911049806.9A patent/CN110941042A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8451399B2 (en) * | 2010-03-26 | 2013-05-28 | Hitachi Displays, Ltd. | Liquid crystal display device |
| CN204164814U (en) * | 2014-09-18 | 2015-02-18 | 深圳市康冠技术有限公司 | Backlight module |
| CN108663744A (en) * | 2018-07-18 | 2018-10-16 | 深圳市宝明科技股份有限公司 | A kind of light guide plate of hole structure |
| CN109760272A (en) * | 2018-12-11 | 2019-05-17 | 深圳市德仓科技有限公司 | Light guide plate injection moulding process, equipment and light guide plate, backlight module, display equipment |
| CN109655960A (en) * | 2019-02-26 | 2019-04-19 | 厦门天马微电子有限公司 | A kind of backlight module and display device |
| CN110045452A (en) * | 2019-03-28 | 2019-07-23 | 武汉华星光电技术有限公司 | Light guide plate, backlight module and display device |
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Application publication date: 20200331 |
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| RJ01 | Rejection of invention patent application after publication |