WO2021012439A1 - 背光模组、显示装置及背光模组的制作方法 - Google Patents

背光模组、显示装置及背光模组的制作方法 Download PDF

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Publication number
WO2021012439A1
WO2021012439A1 PCT/CN2019/113180 CN2019113180W WO2021012439A1 WO 2021012439 A1 WO2021012439 A1 WO 2021012439A1 CN 2019113180 W CN2019113180 W CN 2019113180W WO 2021012439 A1 WO2021012439 A1 WO 2021012439A1
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WO
WIPO (PCT)
Prior art keywords
sleeve
backlight module
hole
perforation
backlight
Prior art date
Application number
PCT/CN2019/113180
Other languages
English (en)
French (fr)
Inventor
周伟
张巍
Original Assignee
武汉华星光电技术有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 武汉华星光电技术有限公司 filed Critical 武汉华星光电技术有限公司
Priority to US16/625,735 priority Critical patent/US20210333466A1/en
Publication of WO2021012439A1 publication Critical patent/WO2021012439A1/zh

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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
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
    • 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
    • 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
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/51—Housings
    • 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0051—Diffusing sheet or layer
    • 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
    • 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, sheet or layer

Definitions

  • the present invention relates to the field of display, in particular to a manufacturing method of a backlight module, a display device and a backlight module.
  • the camera under panel (CUP) technology has been widely recognized as soon as it was launched. Based on the development of the full screen of mobile phones, the outer diameter of the screen camera hole is getting smaller and smaller.
  • the existing display device includes a backlight module and a display panel arranged oppositely.
  • the conventional structure of the backlight module includes two types of pure iron frame, namely the back plate stamping and bending, and the integrated structure of glue-iron.
  • the diameter of the backlight hole designed in the backlight module for placing the camera also needs to be reduced simultaneously.
  • the backlight hole is formed by stamping and bending the back plate constituting the backlight module.
  • the backlight hole is formed by stamping, and the stamping process is limited
  • the maximum depth of the backlight hole can only be made up to 0.7mm. Because the depth of the punched backlight hole is too small to meet the requirements of film stacking, the backlight hole diameter of this structure must be greater than 2.7mm, so it is impossible to provide a diameter less than 2.7mm Backlight hole.
  • the frame glue and the back plate need to be attached to each other to form an integrated backlight hole.
  • the backlight module needs to be connected to the display panel through shading glue, and the shading glue is attached to the frame with a certain width.
  • the glue can guarantee that it will not fall off. Therefore, when the width of the frame glue reaches the minimum, the range of the backlight hole formed is 1.53mm-2.0mm, so the maximum backlight hole diameter of this structure is 2.0mm, which cannot be made larger.
  • the current minimum diameter of the camera is 2.0mm. Only the backlight hole and the camera with a diameter equal to 2.0mm can be used. The production yield of the backlight module and the camera is lower and the cost is higher.
  • the diameter of the backlight hole is less than 2.0mm, and there is no corresponding size camera matching; if the prior art camera can be used, the backlight module needs to be made by adopting the back plate bending structure.
  • the diameter of the backlight hole is larger than 2.7mm. Especially when the diameter of the backlight hole is in the range of 2.0mm-2.7mm, it is a blank area.
  • the conventional structure of the existing backlight module with backlight hole cannot meet its needs, so new backlight modules, display devices and backlight modules are needed. Make a way to solve this problem.
  • the purpose of the present invention is to provide a backlight module, a display device and a manufacturing method of the backlight module, which solves the problem of the limitation of the size of the camera head and realizes the matching of the backlight hole of the backlight module and the existing size camera.
  • the present invention provides a backlight module, which includes a back plate, a reflective sheet, a light guide plate, an optical film set and a sleeve.
  • the reflective sheet is provided on the back plate;
  • the light guide plate is provided on the reflective sheet;
  • the optical film is assembled on the light guide plate;
  • the backlight module is provided with perforations ,
  • the perforation passes through the back plate, the reflective sheet, the light guide plate and the optical film set in sequence;
  • the sleeve is sleeved in the perforation, the sleeve is hollow, and the sleeve
  • a backlight hole is formed around the sidewall.
  • the sleeve includes a sleeve side wall and a cylinder edge.
  • the length of the sleeve side wall is equal to the depth of the perforation; the sleeve rim is perpendicular to the sleeve side wall, and the sleeve rim surrounds the sleeve side wall in an annular shape.
  • the backlight module further includes a double-sided adhesive tape, and the double-sided adhesive tape is attached between the cylindrical edge of the sleeve and the back plate.
  • the shape and size of the side wall of the sleeve are adapted to the shape and size of the perforation.
  • the material of the sleeve includes any one of iron, aluminum, copper, stainless steel, aluminum alloy, hard plastic or injection molding colloid.
  • the optical film set includes a diffusion sheet, a lower brightness enhancement sheet and an upper brightness enhancement sheet.
  • the diffusion sheet is provided on the light guide plate; the lower brightness enhancement sheet is provided on the diffusion sheet; the upper brightness enhancement sheet is provided on the lower brightness enhancement sheet.
  • the present invention also provides a display device, including the above-mentioned backlight module, a display panel, and a light-shielding glue between the two.
  • the present invention also provides a manufacturing method of the backlight module, including the steps:
  • An optical film set is made on the light guide plate; wherein, the backlight module is also provided with a perforation, and the perforation sequentially penetrates the back plate, the reflective sheet, the light guide plate and the optical film set ;as well as
  • a sleeve is made, and the sleeve is sleeved in the perforation.
  • the sleeve is hollow, and a backlight hole is formed around the side wall of the sleeve.
  • the method of making a sleeve includes stamping or injection molding.
  • step of setting the sleeve in the perforation specifically includes:
  • the sleeve is sleeved in the perforation and attached to the back plate through the double-sided tape.
  • the beneficial effect of the present invention is to provide a backlight module, a display device, and a manufacturing method of the backlight module.
  • the backlight hole is formed by using a sleeve to be sleeved in the perforation of the backlight module, which greatly reduces the difficulty of design and manufacturing. This effectively saves costs; it solves the problem that the aperture size of the backlight hole of the backlight module is limited by the process during bending or injection molding, and can obtain the required specifications of the backlight hole without being limited by the aperture size, especially in the backlight hole
  • the diameter range is 2.0mm-2.7mm
  • the existing mass-produced cameras can be placed without being limited by the diameter of the camera, thus solving the problem of matching the backlight hole of the backlight module with the existing size camera.
  • FIG. 1 is a schematic diagram of the structure of a backlight module in an embodiment of the present invention
  • Figure 2 is a top view of the sleeve in the embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a display device in an embodiment of the present invention.
  • FIG. 4 is a flowchart of a manufacturing method of a backlight module in an embodiment of the present invention.
  • Fig. 5 is a flow chart of setting the sleeve in the perforation in Fig. 4.
  • a backlight module 10 which includes a back plate 1, a reflective sheet 2, a light guide plate 3, an optical film set 4, and a sleeve 5.
  • the material of the back plate 1 includes any one of iron, aluminum, copper, stainless steel, aluminum alloy, hard plastic or injection-molded colloid, preferably iron;
  • the reflective sheet 2 is provided on the back plate 1, the back plate 1 plays a supporting role;
  • the reflective sheet 2 is used to reflect light and has good light reflection performance;
  • the light guide plate 3 is provided on the reflective sheet 2, and the light guide plate 3 uses optical Grade acrylic sheet absorbs the light emitted from the light source and stays on the surface of the optical grade acrylic sheet.
  • the optical film set 4 is arranged on the light guide plate 3, and the optical film set 4 is used to enhance the brightness and Uniformity; wherein the backlight module 10 is also provided with a perforation 6, the perforation 6 sequentially penetrates the iron frame back plate 1, the reflective sheet 2, the light guide plate 3 and the optical film set 4
  • the through holes 6 formed on the back plate 1 are a first through hole 61, a second through hole 62 formed on the reflective sheet 2, a third through hole 63 and a third through hole 63 formed on the light guide plate 3.
  • a fourth through hole 64 is formed on the optical film set 4; the first through hole 61, the second through hole 62, the third through hole 63 and the fourth through hole 65 together form Perforation 6.
  • the sleeve 5 is sleeved in the through hole 6, the sleeve 5 is hollow, and the side wall of the sleeve (ie, the inner wall of the sleeve 5) surrounds and forms a backlight hole 53.
  • the diameter D4 is greater than or equal to the diameter D10 of the perforation 6, more specifically, D3 ⁇ D2 ⁇ D4 ⁇ D1 ⁇ D10.
  • the sleeve side wall 51 encloses the backlight hole 53 of the backlight module 10, and the diameter D10 of the perforation 6 is greater than or equal to the diameter D20 of the backlight hole 53 plus two sides of the sleeve side wall 51
  • the wall thickness value is D30, that is, D10 ⁇ D20+2*D30.
  • the diameter D20 of the backlight hole 53 ranges from 2.0 mm to 2.7 mm.
  • the difficulty of designing and manufacturing the backlight module 10 is greatly reduced, thereby effectively saving costs; it solves the problem that the backlight hole 53 is manufactured during the manufacturing process.
  • the aperture size is limited by the process, and the backlight hole 53 of the required specification can be obtained without the limitation of the aperture size.
  • the diameter of the backlight hole 53 is in the range of 2.0mm-2.7mm, the existing mass-produced camera can be placed. Limited by the diameter of the camera, the problem of matching the backlight hole 53 of the backlight module 10 with the camera of the existing size is solved.
  • the sleeve 5 includes a sleeve side wall 51 and a cylinder edge 52.
  • the side wall 51 of the sleeve is formed by bending the rim 52 at a right angle in the radial direction.
  • the sleeve side wall 51 encloses the backlight hole 53 of the backlight module 10, and the length of the sleeve side wall 51 is equal to the depth of the perforation 6;
  • the cylinder edge 52 is perpendicular to In the sleeve side wall 51, the cylinder rim 52 surrounds the sleeve side wall 51 in an annular shape.
  • the backlight module 10 further includes a double-sided adhesive sticker 7, the double-sided adhesive sticker 7 is provided on the tube edge 52 of the sleeve 5 and the The space between the back plates 1 is used to firmly stick the sleeve 5 to the back plate 1.
  • the sleeve side wall 51 is sleeved in the perforation 6 on the side of the back plate 1 facing away from the reflection sheet 2, and the cylinder edge 52 is connected to the back through the double-sided adhesive tape 7
  • the board 1 is attached, and the shape and size of the double-sided adhesive tape 7 are adapted to the shape and size of the cylinder edge 52, that is, it is annular.
  • Adopting the double-sided adhesive sticker 7 for bonding greatly reduces the difficulty of manufacturing the backlight module 10, thereby effectively saving costs, and only needs to control the sleeve 5 and the back plate 1 respectively.
  • the qualified rate can guarantee the qualified rate of the backlight module 10, which has strong practicability.
  • the shape and size of the sleeve 5 are adapted to the shape and size of the through hole 6. That is, the cross sections of the sleeve 5 and the perforation 6 are either circular, rectangular or polygonal. In this embodiment, it is preferable that the cross sections of the sleeve 5 and the perforation 6 are both circular. It can be understood that the centers of the first through hole 61, the second through hole 62, the third through hole 63, and the fourth through hole 64 are on the same straight line.
  • the material of the sleeve 5 includes any one of iron, aluminum, copper, stainless steel, aluminum alloy, hard plastic or injection molding colloid. It is worth noting that the materials listed above are the preferred materials of the sleeve 5, and the material of the sleeve 5 only needs to be able to form an integrated structure, and they all belong to the protection scope of the present invention.
  • the optical film set 4 includes a diffusion sheet 41, a lower brightness enhancement sheet 42 and an upper brightness enhancement sheet 43.
  • the diffusion sheet 41 is provided on the light guide plate 3; the lower brightness enhancement sheet 42 is provided on the diffusion sheet 41; the upper brightness enhancement sheet 43 is provided on the lower brightness enhancement sheet 42.
  • the optical film set 4 is used to enhance the brightness and uniformity of the light source.
  • the diffusion sheet 41 can enhance the brightness of the light source.
  • the lower brightness enhancement sheet 42 diffuses light to provide a uniform surface light source.
  • the upper brightness enhancement sheet 43 can also enhance the brightness of the light source.
  • the light-emitting effect of the backlight module 10 will directly affect its visual effect.
  • the present invention also provides a display device 100, which includes the above-mentioned backlight module 10, a display panel 20, and a light-shielding glue 30 between them.
  • the light-shielding glue 30 is used for bonding the backlight module 10 and the display panel 20.
  • a part of the lower surface of the light-shielding glue 30 is attached to the top end of the side wall 51 of the sleeve, and a part is attached to the upper surface of the upper light-increasing sheet 43, and the upper surface of the light-shielding glue 30 is attached to The lower surface of the display panel 20, so that the light-shielding glue 30 adheres the backlight module 10 and the display panel 20 together.
  • the light-shielding glue 30 serves to connect the backlight module 10 and the display panel 20, and can prevent the backlight module 10 from leaking light from the position of the perforation 6, so the shape and size of the light-shielding glue 30 It is adapted to the shape and size of the perforation 6, that is, the shading glue 30 surrounds the perforation 6 in a ring shape.
  • the sleeve 5 is hollow, the side wall 51 of the sleeve (that is, the inner wall of the sleeve 5) surrounds the backlight hole 53, and the light-shielding glue 30 is not provided at the position corresponding to the backlight hole 53 .
  • the display device 100 in this embodiment may be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, a navigator, and the like.
  • the working principle of the display device 100 provided in this embodiment is consistent with the working principle of the embodiment of the backlight module 10.
  • the present invention also provides a manufacturing method of the backlight module 10, including the following steps S1-S5:
  • a back plate 1 is provided.
  • the material of the back plate 1 includes any one of iron, aluminum, copper, stainless steel, aluminum alloy, hard plastic or injection molded colloid, preferably iron; Punch a first through hole 61;
  • S5. Fabricate a sleeve 5 and set the sleeve 5 in the perforation 6.
  • the sleeve 5 is hollow, and a backlight hole 53 is formed around the side wall of the sleeve.
  • the shape and size of the sleeve 5 are adapted to the shape and size of the perforation 6; that is, the sleeve 5 and the perforation 6 are both circular, rectangular or polygonal, preferably
  • the sleeve 5 and the through hole 6 are circular at the same time, that is, a round hole.
  • the first through hole 61, the second through hole 62, and the third through hole 63 It is on the same straight line as the center of the fourth through hole 64.
  • the diameter D4 of is greater than or equal to the diameter D10 of the perforation 6, more specifically, D3 ⁇ D2 ⁇ D4 ⁇ D1 ⁇ D10.
  • the sleeve side wall 51 encloses the backlight hole 53 of the backlight module 10, and the diameter D10 of the perforation 6 is greater than or equal to the diameter D20 of the backlight hole 53 plus two sides of the sleeve side wall 51
  • the wall thickness value is D30, that is, D10 ⁇ D20+2*D30.
  • the diameter D20 of the backlight hole 53 ranges from 2.0 mm to 2.7 mm.
  • the method of making a sleeve 5 includes stamping or injection molding; the material of the sleeve 5 includes any one of iron, aluminum, copper, stainless steel, aluminum alloy, hard plastic or injection molding colloid. .
  • the sleeve 5 includes a sleeve side wall 51 and a cylinder edge 52; the sleeve side wall 51 is formed by bending the cylinder edge 52 at a right angle in the radial direction.
  • the length of the sleeve side wall 51 is equal to the depth of the perforation 6; the cylindrical rim 52 is perpendicular to the sleeve side wall 51, and the cylindrical rim 52 surrounds the sleeve side wall 51 in an annular shape.
  • the step of inserting the sleeve 5 into the through hole 6 specifically includes:
  • Adopting the double-sided adhesive tape 7 for bonding greatly reduces the difficulty of its design and production, thereby effectively saving costs, and only needs to control the qualification rate of the sleeve 5 and the back plate 1 respectively. To ensure the pass rate of the backlight module 10, it has strong practicability.
  • the manufacturing method of the backlight module 10 provided by the present invention is by punching a first through hole 61 in the back plate 1.
  • the first through hole 61 is preferably circular, that is, a round hole;
  • the sleeve 5, the inner diameter of the sleeve 5 is equal to the required diameter of the backlight hole 53, the punched sleeve 5 is sleeved in the perforation 6 where the first through hole 61 is located to form the backlight hole 53, and
  • the use of the double-sided adhesive tape 7 for attaching can not only solve the problem of the bending or injection molding aperture size being limited by the process, but also can obtain the backlight hole 53 of the required specification, which is not limited by the aperture size, and can be manufactured.
  • the diameter range of 53 includes 2.0mm-2.7mm, which can be placed on existing mass-produced cameras without being restricted by the diameter of the camera, thus solving the problem of the backlight module 10 backlight hole 53 matching the existing size camera.
  • the beneficial effect of the present invention is to provide a backlight module, a display device and a manufacturing method of the backlight module.
  • a sleeve to cover the through hole of the backlight module to form a backlight hole, the difficulty of design and manufacturing is greatly reduced. This effectively saves costs; solves the problem that the aperture size of the backlight hole of the backlight module is limited by the process during bending or injection molding, and the backlight hole of the required specification can be obtained without the limitation of the aperture size.
  • the backlight can be manufactured
  • the hole diameter ranges from 2.0mm-2.7mm, which can be used to place existing mass-produced cameras without being limited by the diameter of the camera, thus solving the problem of the backlight hole of the backlight module with the existing size camera.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Signal Processing (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Multimedia (AREA)
  • Planar Illumination Modules (AREA)

Abstract

一种背光模组（10）、显示装置（100）及背光模组（10）的制作方法。背光模组（10）包括背板（1）、反射片（2）、导光板（3）、光学膜片组（4）以及套筒（5）；背光模组（10）设有穿孔（6），穿孔（6）依次贯穿背板（1）、反射片（2）、导光板（3）和光学膜片组（4）；套筒（5）套设于穿孔（6）内，套筒（5）是中空的，套筒（5）侧壁（51）环绕形成背光孔（53）。显示装置（100）包括背光模组（10）、显示面板（20）以及位于两者之间的遮光胶（30）。背光模组（10）的制作方法包括步骤：提供一背板（1）、制作反射片（2）、制作导光板（3）、制作光学膜片组（4）形成一穿孔（6）、制作一套筒（5）套设于穿孔（6）内。

Description

背光模组、显示装置及背光模组的制作方法 技术领域
本发明涉及显示领域，尤其涉及一种背光模组、显示装置及背光模组的制作方法。
 背景技术
随着显示技术的发展，屏下摄像头（Camera Under Panel，CUP）技术一经推出就得到广泛认可，基于手机全面屏的发展，屏幕摄像头孔外直径越来越小。
现有的显示装置包括相对设置的背光模组和显示面板。背光模组的常规结构包括纯铁框即背板冲压弯折及胶铁一体结构两种，背光模组中设计的放置摄像头的背光孔直径也需要同步缩小。
若背光模组为背板冲压弯折结构，背光孔由构成背光模组的背板冲压弯折形成，其背光孔直径在小于2.7mm时，因背光孔是冲压方式形成的，冲压工艺限制了背光孔的深度最大只可制作到0.7mm，因冲压出的背光孔深度太小而无法满足膜材堆叠的要求，故此结构的背光孔直径就要大于2.7mm，从而无法提供直径小于2.7mm的背光孔。
若背光模组为胶铁一体结构，需由框胶与背板相互贴合构成一体的背光孔，此时背光模组需通过遮光胶与显示面板连接，遮光胶贴附在具有一定宽度的框胶上才能保证不脱落，因此当框胶的宽度达到最小值时，形成的背光孔的范围为1.53mm-2.0mm，故此结构的背光孔直径最大值为2.0mm，无法再做更大。受摄像头技术的限制，目前摄像头的最小直径为2.0mm，仅背光孔及摄像头的直径等于2.0mm可以使用，背光模组及摄像头的制作成品率较低、成本较高。
当背光模组为胶铁一体结构时，背光孔直径小于2.0mm，此时没有相应尺寸的摄像头匹配；若现有技术的摄像头可予以使用，需通过采用背板弯折结构制作背光模组，其背光孔直径范围大于2.7mm。尤其是在背光孔直径范围为2.0mm-2.7mm时为空白领域，现有背光模组带背光孔的常规结构均不能满足其需求，故需要新的背光模组、显示装置及背光模组的制作方法来解决此问题。
 技术问题
本发明的目的在于，提供一种背光模组、显示装置及背光模组的制作方法，其解决了摄像头直径大小受限制的问题，实现了背光模组背光孔与现有尺寸摄像头的搭配。
 技术解决方案
为了解决上述问题，本发明提供一种背光模组，包括背板、反射片、导光板、光学膜片组以及套筒。具体地讲，所述反射片设于所述背板上；所述导光板设于所述反射片上；所述光学膜片组设于所述导光板上；其中所述背光模组设有穿孔，所述穿孔依次贯穿所述背板、所述反射片、所述导光板和所述光学膜片组；所述套筒套设于所述穿孔内，所述套筒是中空的，套筒侧壁环绕形成一背光孔。
进一步地，所述套筒包括套筒侧壁和筒缘。具体的，所述套筒侧壁的长度与所述穿孔的深度相等；所述筒缘垂直于所述套筒侧壁，所述筒缘呈环形环绕所述套筒侧壁。
进一步地，所述背光模组还包括一双面胶贴，所述双面胶贴设于所述套筒的筒缘和所述背板之间。
进一步地，所述套筒侧壁的形状及尺寸与所述穿孔的形状及尺寸相适配。
进一步地，所述套筒的材质包括铁、铝、铜、不锈钢、铝合金、硬质塑料或注塑胶体中的任一种。
进一步地，所述光学膜片组包括扩散片、下增光片和上增光片。具体地讲，所述扩散片设于所述导光板上；所述下增光片设于所述扩散片上；所述上增光片设于所述下增光片上。
本发明还提供一种显示装置，包括以上所述的背光模组、显示面板以及位于两者之间的遮光胶。
本发明还提供一种背光模组的制作方法，包括步骤：
提供一背板；
在所述背板上制作反射片；
在所述反射片上制作导光板；
在所述导光板上制作光学膜片组；其中，所述背光模组还开设有一穿孔，所述穿孔依次贯穿所述背板、所述反射片、所述导光板和所述光学膜片组；以及
制作一套筒，并将所述套筒套设于所述穿孔内，所述套筒为中空，套筒侧壁环绕形成一背光孔。
进一步地，所述制作一套筒的方式包括冲压或注塑成型。
进一步地，所述将所述套筒套设于所述穿孔内的步骤具体包括：
在所述背板背离所述反射片一侧贴附一双面胶贴；以及
将所述套筒套设于所述穿孔内通过所述双面胶贴附在所述背板上。
 有益效果
本发明的有益效果在于，提供一种背光模组、显示装置及背光模组的制作方法，通过使用套筒套设在背光模组的穿孔内形成背光孔，大大降低了其设计和制作难度，从而有效节约了成本；解决了背光模组的背光孔在折弯或者注塑制作时孔径大小受工艺限制的问题，能得到所需规格的背光孔，不受孔径大小的限制，尤其是在背光孔直径范围为2.0mm-2.7mm时可以放置现有量产的摄像头，不受摄像头直径大小的限制，从而解决了背光模组背光孔搭配现有尺寸摄像头的问题。
 附图说明
图1为本发明实施例中背光模组的结构示意图；
图2为本发明实施例中套筒的俯视图；
图3为本发明实施例中显示装置的结构示意图；
图4为本发明的实施例中背光模组的制作方法的流程图；
图5为图4中将所述套筒套设于所述穿孔内的流程图。
图中部件标识如下：
1、背板，2、反射片，3、导光板，4、光学膜片组，5、套筒，
6、通孔，7、双面胶贴，10、背光模组，20、显示面板，30、遮光胶，
41、扩散片，42、下增光片，43、上增光片，51、套筒侧壁，
52、筒缘，53、背光孔，61、第一通孔，62、第二通孔，63、第三通孔，
64、第四通孔，100、显示装置。
 本发明的实施方式
以下各实施例的说明是参考附加的图示，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。在图中，结构相似的单元是用以相同标号表示。
在附图中，为了清楚，层和区域的厚度被夸大。例如，为了便于描述，附图中的元件的厚度和尺寸被任意地示出，因此，所描述的技术范围不由附图限定。
请参阅图1所示，本发明其中一实施例中提供一种背光模组10，包括背板1、反射片2、导光板3、光学膜片组4以及套筒5。
具体地讲，所述背板1的材质包括铁、铝、铜、不锈钢、铝合金、硬质塑料或注塑胶体中的任一种，优选为铁；所述反射片2设于所述背板1上，所述背板1起支撑作用；所述反射片2用于反射光线，具有较好的反光性能；所述导光板3设于所述反射片2上，所述导光板3利用光学级亚克力板材吸取从光源发出来的光在光学级亚克力板材表面的停留，当光线射到各个导光点时，反射光会往各个角度扩散，然后破坏反射条件由导光板3正面射出，通过各种疏密、大小不一的导光点，可使导光板3均匀发光；所述光学膜片组4设于所述导光板3上，所述光学膜片组4用于增强光源的亮度和均匀性；其中，所述背光模组10还开设有一穿孔6，所述穿孔6依次贯穿所述铁框背板1、所述反射片2、所述导光板3和所述光学膜片组4，所述穿孔6在所述背板1上形成的是第一通孔61、在所述反射片2上形成的第二通孔62、在所述导光板3上形成第三通孔63和在所述光学膜片组4上形成第四通孔64；所述第一通孔61，所述第二通孔62，所述第三通孔63和所述第四通孔65共同组成了穿孔6。所述套筒5套设于所述穿孔6内，所述套筒5为中空，套筒侧壁（即套筒5的内壁）围绕形成了背光孔53。
请参阅图1和图2所示，所述第一通孔61的直径D1、所述第二通孔62的直径D2、所述第三通孔63的直径D3和所述第四通孔64的直径D4大于等于所述穿孔6的直径D10，更具体的，D3≥D2≥D4≥D1≥D10。所述套筒侧壁51围成所述背光模组10的背光孔53，所述穿孔6的直径D10大于等于所述背光孔53的直径D20加上所述套筒侧壁51的两个侧壁厚度值D30，即D10≥D20+2*D30。所述背光孔53的直径D20范围包含2.0mm-2.7mm。
本实施例通过使用所述套筒5套设在所述穿孔6内，大大降低了所述背光模组10的设计和制作难度，从而有效节约了成本；解决了所述背光孔53在制作时孔径大小受工艺限制的问题，能得到所需规格的背光孔53，不受孔径大小的限制，尤其是在背光孔53直径范围为2.0mm-2.7mm时可以放置现有量产的摄像头，不受摄像头直径限制，从而解决了背光模组10背光孔53搭配现有尺寸摄像头的问题。
请参阅图1和图2所示，本实施例中，所述套筒5包括套筒侧壁51和筒缘52。所述套筒侧壁51为所述筒缘52径向呈直角弯折而形成。具体地讲，所述套筒侧壁51围成了所述背光模组10的背光孔53，所述套筒侧壁51的长度与所述穿孔6的深度相等；所述筒缘52垂直于所述套筒侧壁51，所述筒缘52呈环形环绕所述套筒侧壁51。
请参阅图1和图2所示，本实施例中，所述背光模组10还包括一双面胶贴7，所述双面胶贴7设于所述套筒5的筒缘52和所述背板1之间，用于将套筒5牢固地粘贴到背板1上。具体的，所述套筒侧壁51在所述背板1背离所述反射片2一侧套设于所述穿孔6内，所述筒缘52通过所述双面胶贴7与所述背板1贴合，所述双面胶贴7的形状及尺寸与所述筒缘52的形状及尺寸相适配，即呈环形。采用所述双面胶贴7进行贴合的方式，大大降低了制作所述背光模组10的难度，从而有效节约了成本，并且只需分别控制所述套筒5、所述背板1的合格率即可保证所述背光模组10的合格率，具有很强的实用性。
本实施例中，所述套筒5的形状及尺寸与所述穿孔6的形状及尺寸相适配。即所述套筒5与所述穿孔6的截面呈圆形、矩形或多边形中的任一种，本实施例中优选所述套筒5与所述穿孔6的截面都呈圆形，此时可以理解的是，所述第一通孔61、所述第二通孔62、所述第三通孔63和所述第四通孔64的圆心在同一直线上。
本实施例中，所述套筒5的材质包括铁、铝、铜、不锈钢、铝合金、硬质塑料或注塑胶体中的任一种。值得说明的是，以上列举的材质为所述套筒5的优选材质，所述套筒5的材质只要能满足形成一体的结构即可，其均属于本发明保护范围。
请参阅图1所示，所述光学膜片组4包括扩散片41、下增光片42和上增光片43。具体地讲，所述扩散片41设于所述导光板3上；所述下增光片42设于所述扩散片41上；所述上增光片43设于所述下增光片42上。所述光学膜片组4用于增强光源的亮度和均匀性。所述扩散片41可增强光源的亮度。所述下增光片42对光线扩散以提供一个均匀的面光源。所述上增光片43也可增强光源的亮度。所述背光模组10的发光效果将直接影响到其视觉效果。
请参阅图3所示，本发明还提供一种显示装置100，包括以上所述的背光模组10、显示面板20以及位于两者之间的遮光胶30。所述遮光胶30用于贴合所述背光模组10和所述显示面板20。
具体的，所述遮光胶30的下表面一部分贴附于所述套筒侧壁51的顶端、一部分贴附于所述上增光片43的上表面，所述遮光胶30的上表面贴附于所述显示面板20的下表面，从而所述遮光胶30将所述背光模组10和所述显示面板20粘附结合在一起。所述遮光胶30起到连接所述背光模组10和所述显示面板20的作用，并且可以防止所述背光模组10从所述穿孔6位置漏光，因此所述遮光胶30的形状及尺寸与所述穿孔6的形状及尺寸相适配，即所述遮光胶30呈环形环绕所述穿孔6。也就是说，所述套筒5为中空，所述套筒侧壁51（即套筒5的内壁）围绕形成了背光孔53，在对应所述背光孔53的位置不设置所述遮光胶30。
本实施例中的所述显示装置100可以为：手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。
本实施例提供的显示装置100的工作原理，与所述背光模组10的实施例工作原理一致，具体结构关系及工作原理参见所述背光模组10实施例，此处不再赘述。
请参阅图4所示，本发明还提供一种背光模组10的制作方法，包括以下步骤S1-S5：
S1、提供一背板1，所述背板1的材质包括铁、铝、铜、不锈钢、铝合金、硬质塑料或注塑胶体中的任一种，优选为铁；并在所述背板1上冲压一第一通孔61；
S2、在所述背板1上制作反射片2，所述反射片2设有与所述第一通孔61相对设置的第二通孔62；
S3、在所述反射片2上制作导光板3，所述导光板3设有与所述第二通孔62相对设置的第三通孔63；
S4、在所述导光板3上制作光学膜片组4，所述光学膜片组4设有与所述第三通孔63相对设置的第四通孔64；其中所述第一通孔61、所述第二通孔62、所述第三通孔63和所述第四通孔64共同组成了穿孔6，可以理解的是，所述背光模组10开设有的所述穿孔6依次贯穿所述铁框背板1、所述反射片2、所述导光板3和所述光学膜片组4，即在所述背板1上形成所述第一通孔61、在所述反射片2上形成所述第二通孔62、在所述导光板3上形成所述第三通孔63和在所述光学膜片组4上形成所述第四通孔64；以及
S5、制作一套筒5，并将所述套筒5套设于所述穿孔6内，所述套筒5为中空，套筒侧壁围绕形成了背光孔53。
其中，所述套筒5的形状及尺寸与所述穿孔6的形状及尺寸相适配；即所述套筒5与所述穿孔6同时呈圆形、矩形或多边形中的任一种，优选所述套筒5与所述穿孔6同时呈圆形，即为圆孔，此时可以理解的是，所述第一通孔61、所述第二通孔62、所述第三通孔63和所述第四通孔64的圆心在同一直线上。
请参阅图1和图2所示，所述第一通孔61的直径D1、所述第二通孔62的直径D2、所述第三通孔63的直径D3和所述第四通孔64的直径D4大于等于所述穿孔6的直径D10，更具体的，D3≥D2≥D4≥D1≥D10。所述套筒侧壁51围成所述背光模组10的背光孔53，所述穿孔6的直径D10大于等于所述背光孔53的直径D20加上所述套筒侧壁51的两个侧壁厚度值D30，即D10≥D20+2*D30。所述背光孔53的直径D20范围包含2.0mm-2.7mm。
本实施例中，所述制作一套筒5的方式包括冲压或注塑成型；所述套筒5的材质包括铁、铝、铜、不锈钢、铝合金、硬质塑料或注塑胶体中的任一种。
请参阅图1和图2所示，所述套筒5包括套筒侧壁51和筒缘52；所述套筒侧壁51为所述筒缘52径向呈直角弯折而形成。所述套筒侧壁51的长度与所述穿孔6的深度相等；所述筒缘52垂直于所述套筒侧壁51，所述筒缘52呈环形环绕所述套筒侧壁51。
请参阅图5所示，本实施例中，所述将所述套筒5套设于所述穿孔6内的步骤具体包括：
S51、在所述背板1背离所述反射片2一侧贴附一双面胶贴7；以及
S52、将所述套筒5套设于所述穿孔6内通过所述双面胶贴7贴附在所述背板1上；换句话讲，所述套筒5的所述套筒侧壁51从所述背板1背离所述反射片2一侧套设于所述穿孔6内，所述筒缘52通过所述双面胶贴7与所述背板1贴合。
采用所述双面胶贴7进行贴合的方式，大大降低了其设计和制作难度，从而有效节约了成本，并且只需分别控制所述套筒5、所述背板1的合格率即可保证所述背光模组10的合格率，具有很强的实用性。
本发明提供的所述背光模组10的制作方法通过在所述背板1冲压出一个第一通孔61，所述第一通孔61优选呈圆形，即为圆孔；然后冲压一个所述套筒5，所述套筒5的内径等于所要求的背光孔53的直径，冲压的套筒5套设在所述第一通孔61所在的所述穿孔6内形成背光孔53，并使用所述双面胶贴7进行贴附，既能解决折弯或者注塑孔径大小受工艺限制的问题，又能得到所需规格的背光孔53，不受孔径大小的限制，可制作的背光孔53直径范围包含2.0mm-2.7mm，可以放置现有量产的摄像头，不受摄像头直径限制，从而解决了背光模组10背光孔53搭配现有尺寸摄像头的问题。
本发明的有益效果在于，提供一种背光模组、显示装置及背光模组的制作方法，通过使用套筒套设在背光模组的通孔内形成背光孔，大大降低了其设计和制作难度，从而有效节约了成本；解决了背光模组的背光孔在折弯或者注塑制作时孔径大小受工艺限制的问题，能得到所需规格的背光孔，不受孔径大小的限制，可制作的背光孔直径范围包含2.0mm-2.7mm，可以放置现有量产的摄像头，不受摄像头直径限制，从而解决了背光模组背光孔搭配现有尺寸摄像头的问题。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (10)

  1. 一种背光模组，包括：
    背板；
    反射片，设于所述背板上；
    导光板，设于所述反射片上；以及
    光学膜片组，设于所述导光板上；
    其中，所述背光模组设有：穿孔，所述穿孔依次贯穿所述背板、所述反射片、所述导光板和所述光学膜片组；以及
    套筒，套设于所述穿孔内，所述套筒是中空的，套筒侧壁环绕形成一背光孔。
  2. 根据权利要求1所述的背光模组，其中，所述套筒包括：
    套筒侧壁，所述套筒侧壁的长度与所述穿孔的深度相等；
    筒缘，垂直于所述套筒侧壁，所述筒缘呈环形环绕所述套筒侧壁。
  3. 根据权利要求1所述的背光模组，其中，还包括一双面胶贴，所述双面胶贴设于所述套筒的筒缘和所述背板之间。
  4. 根据权利要求1所述的背光模组，其中，所述套筒侧壁的形状及尺寸与所述穿孔的形状及尺寸相适配。
  5. 根据权利要求1所述的背光模组，其中，所述套筒的材质包括铁、铝、铜、不锈钢、铝合金、硬质塑料或注塑胶体中的任一种。
  6. 根据权利要求1所述的背光模组，其中，所述光学膜片组包括：
    扩散片，设于所述导光板上；
    下增光片，设于所述扩散片上；以及
    上增光片，设于所述下增光片上。
  7. 一种显示装置，包括权利要求1所述的背光模组、显示面板以及位于两者之间的遮光胶。
  8. 一种背光模组的制作方法，其包括步骤：
    提供一背板；
    在所述背板上制作反射片；
    在所述反射片上制作导光板；
    在所述导光板上制作光学膜片组；其中，所述背光模组还开设有一穿孔，所述穿孔依次贯穿所述背板、所述反射片、所述导光板和所述光学膜片组；以及
    制作一套筒，并将所述套筒套设于所述穿孔内，所述套筒为中空，套筒侧壁环绕形成一背光孔。
  9. 根据权利要求8所述的背光模组的制作方法，其中，所述制作一套筒的方式包括冲压或注塑成型。
  10. 根据权利要求8所述的背光模组的制作方法，其中，将所述套筒套设于所述穿孔内的步骤具体包括：
    在所述背板背离所述反射片一侧贴附一双面胶贴；以及
    将所述套筒套设于所述穿孔内通过所述双面胶贴附在所述背板上。
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Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110928044A (zh) * 2019-11-28 2020-03-27 武汉华星光电技术有限公司 背光结构及其制备方法、显示装置
CN111025754A (zh) * 2019-12-13 2020-04-17 武汉华星光电技术有限公司 背光模组及显示装置
KR20210085977A (ko) * 2019-12-31 2021-07-08 엘지디스플레이 주식회사 디스플레이 장치
CN113517314A (zh) * 2020-04-09 2021-10-19 京东方科技集团股份有限公司 显示模组、其固定方法及显示装置
CN212675324U (zh) * 2020-09-17 2021-03-09 北京京东方光电科技有限公司 一种背光模组及显示装置
CN213904766U (zh) 2020-12-02 2021-08-06 北京京东方光电科技有限公司 一种背光模组及显示装置
CN112666753B (zh) * 2020-12-31 2022-07-22 厦门天马微电子有限公司 一种背光模组、液晶显示模组和液晶显示装置
WO2023097455A1 (zh) * 2021-11-30 2023-06-08 京东方科技集团股份有限公司 背板及其制作方法、背光模组、显示装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102182989A (zh) * 2011-04-21 2011-09-14 深圳市华星光电技术有限公司 用于背光模块的固定机构及背光模块
US8858052B2 (en) * 2010-03-31 2014-10-14 Global Lighting Technology Inc. Backlight module
CN108681150A (zh) * 2018-06-29 2018-10-19 厦门天马微电子有限公司 一种背光模组、显示装置
CN109683399A (zh) * 2019-02-28 2019-04-26 厦门天马微电子有限公司 显示模组和显示装置
CN109785744A (zh) * 2018-12-25 2019-05-21 友达光电（昆山）有限公司 显示装置及使用该显示装置的终端
CN209028238U (zh) * 2018-09-29 2019-06-25 深圳市山本光电股份有限公司 一种光学膜片及其背光模组

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101249241B1 (ko) * 2006-08-04 2013-04-01 재단법인서울대학교산학협력재단 액정표시장치
CN108540603A (zh) * 2018-04-20 2018-09-14 深圳市隆利科技股份有限公司 一种全面屏防漏光手机
CN108594524B (zh) * 2018-04-26 2021-04-13 京东方科技集团股份有限公司 显示装置
CN108919544A (zh) * 2018-06-26 2018-11-30 Oppo广东移动通信有限公司 显示屏组件、电子设备及电子设备的制作方法
CN108803144B (zh) * 2018-06-29 2021-03-02 厦门天马微电子有限公司 一种背光模组及显示装置
CN108957855B (zh) * 2018-07-26 2021-04-02 厦门天马微电子有限公司 显示装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8858052B2 (en) * 2010-03-31 2014-10-14 Global Lighting Technology Inc. Backlight module
CN102182989A (zh) * 2011-04-21 2011-09-14 深圳市华星光电技术有限公司 用于背光模块的固定机构及背光模块
CN108681150A (zh) * 2018-06-29 2018-10-19 厦门天马微电子有限公司 一种背光模组、显示装置
CN209028238U (zh) * 2018-09-29 2019-06-25 深圳市山本光电股份有限公司 一种光学膜片及其背光模组
CN109785744A (zh) * 2018-12-25 2019-05-21 友达光电（昆山）有限公司 显示装置及使用该显示装置的终端
CN109683399A (zh) * 2019-02-28 2019-04-26 厦门天马微电子有限公司 显示模组和显示装置

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