WO2019144460A1 - 显示模组及其制备方法和显示装置 - Google Patents

显示模组及其制备方法和显示装置 Download PDF

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Publication number
WO2019144460A1
WO2019144460A1 PCT/CN2018/077263 CN2018077263W WO2019144460A1 WO 2019144460 A1 WO2019144460 A1 WO 2019144460A1 CN 2018077263 W CN2018077263 W CN 2018077263W WO 2019144460 A1 WO2019144460 A1 WO 2019144460A1
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WO
WIPO (PCT)
Prior art keywords
middle frame
display module
side wall
side walls
colorless transparent
Prior art date
Application number
PCT/CN2018/077263
Other languages
English (en)
French (fr)
Inventor
李德华
俞刚
Original Assignee
惠州市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 惠州市华星光电技术有限公司 filed Critical 惠州市华星光电技术有限公司
Priority to US16/001,392 priority Critical patent/US10698152B2/en
Publication of WO2019144460A1 publication Critical patent/WO2019144460A1/zh

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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
    • 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
    • G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • 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
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133317—Intermediate frames, e.g. between backlight housing and front frame
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133325—Assembling processes
    • 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
    • G02F1/133602—Direct backlight
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • 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
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/08—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 light absorbing layer
    • G02F2201/086—UV absorbing
    • 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
    • G02F2202/00—Materials and properties
    • G02F2202/28—Adhesive materials or arrangements
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/87—Passivation; Containers; Encapsulations
    • H10K59/871—Self-supporting sealing arrangements

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a display module, a preparation method thereof, and a display device.
  • the present invention provides a display module and a display device, which facilitates rapid curing of the glue, and the rework process is quick and simple.
  • the first aspect of the present invention provides a method for preparing a display module, including:
  • the middle frame includes three side walls sequentially connected, the three side walls form a receiving space, and a bottom or a middle portion of each of the side walls vertically protrudes into the receiving space a starting portion, the side wall is colored, and the convex portion includes a colorless transparent portion;
  • the backlight assembly is located in the receiving space;
  • the backlight assembly comprises a reflective sheet, a light guide plate and an optical film laminated on the back plate in sequence;
  • the light-incident surface of the light guide plate is irradiated with an ultraviolet curing light source, and the ultraviolet light is transmitted to the primary dispensing position and the secondary dispensing position to cure the glue at the dispensing position.
  • the convex portion includes a colored portion and a colorless transparent portion, and the colored portion is connected to the side wall; or the convex portion is all colorless and transparent.
  • the three convex portions extending from the three side walls of the middle frame are on the same plane. Further, the heights of the three raised portions are the same.
  • the middle frame includes a first sidewall, a second sidewall, and a third sidewall that are sequentially connected, wherein the second sidewall is located at the first sidewall and the third sidewall And the second sidewall is perpendicular to the first sidewall and the third sidewall; the middle frame is ⁇ -shaped.
  • the middle frame is a plastic material integrally formed.
  • the middle frame is disposed outside the backlight assembly and surrounds three sides of the backlight assembly.
  • the longitudinal section of the middle frame along the vertical side wall (including the first side wall, the second side wall and the third side wall) is shape.
  • three bosses extend from the middle of each side wall. That is, the longitudinal section of the middle frame in the direction perpendicular to the first side wall and perpendicular to the first protrusion extending from the middle of the first side wall is a longitudinal section of the middle frame in a direction perpendicular to the second side wall and perpendicular to the second protrusion extending from the middle of the second side wall shape.
  • the sum of the height of the convex portion and the thickness of the glue layer at the primary dispensing position is greater than or equal to the sum of the heights of the backlight assemblies.
  • the method further comprises:
  • a front frame is placed outside the bead, and the display panel portion is inserted into the front frame to complete preparation of the display module.
  • a two-color forming middle frame of a specific structure is used, and the dispensing is performed by a colorless transparent portion corresponding to the convex portion on the back plate, and the colorless transparent portion thereof
  • the ultraviolet light can be transmitted to the two dispensing positions and the glue is solidified into a photosensitive adhesive layer, which is compared with the prior art.
  • the structural glue bonds the display panel and the backlight module, and the method can greatly shorten the curing time of the glue and greatly improve the assembly efficiency.
  • the light guide plate can illuminate the light that can be cracked by the photosensitive adhesive layer, thereby conveniently and effectively separating the components of the display module for maintenance and the like.
  • a second aspect of the present invention provides a display module including a backlight module and a display panel disposed on the backlight module, the backlight module including a back panel and a backlight assembly disposed on the back panel
  • the backlight assembly includes a reflective sheet, a light guide plate, and an optical film laminated on the back plate in sequence;
  • the backlight module further includes a two-color molding middle frame, the middle frame includes three side walls sequentially connected, and the three side walls form a receiving space, and a bottom or a middle portion of each of the side walls faces the receiving space
  • a convex portion Vertically extending inside is a convex portion, the side wall is colored, and the convex portion includes a colorless transparent portion;
  • the raised portion of the middle frame and the backlight assembly are located on the backplane, and the backlight assembly is located in the receiving space, and the colorless transparent portion faces the backlight assembly;
  • a photosensitive adhesive layer is disposed between the back sheet and the colorless transparent portion, and between the display panel and the colorless transparent portion.
  • the display module provided by the second aspect of the present invention is prepared by the method of the first aspect of the present invention.
  • the side of the colorless transparent portion of the two-color molding middle frame faces the light-emitting end surface of the duct plate.
  • the photosensitive adhesive layer is only disposed on the upper and lower surfaces of the colorless transparent portion of the middle frame, so the curing time of the adhesive layer in the forming process is short, and when the display module needs to be reworked, the light-sensitive adhesive can be used to make the photosensitive adhesive.
  • the layer is cracked and peeled off, and the display panel and the backlight assembly are not easily damaged, which greatly improves the processing yield.
  • a third aspect of the invention provides a display device comprising the display module according to the first aspect of the invention.
  • 1a is a schematic view showing a dispensing on a backing plate according to an embodiment of the present invention
  • Figure 1b is an enlarged view of the area A in Figure 1a;
  • 2a is a schematic view showing a middle frame and a backlight assembly placed on the backplane
  • Figure 2b is an enlarged view of the area B in Figure 2a;
  • Figure 2c is a plan view of the middle frame 3 of Figure 2b;
  • Figure 3 is a schematic view of secondary dispensing on the basis of Figure 2b;
  • 4a is a schematic view of placing a display panel after secondary dispensing
  • Figure 4b is an enlarged view of the area C in Figure 4a;
  • Figure 4c is a cross-sectional view taken along line A-A of Figure 4a;
  • FIG. 5a is a schematic diagram of irradiating the light guide plate 22 with an ultraviolet curing light source
  • Figure 5b is an enlarged view of the area D in Figure 5a;
  • FIG. 6 is a schematic view of placing a light bar, a bead, and a front frame after removing the ultraviolet curing light source;
  • FIG. 7a is a schematic structural view of a viewing angle of a display module
  • Figure 7b is a cross-sectional view taken along line B-B of Figure 7a;
  • Figure 9 is an exploded view of the display module of Figure 8.
  • Main reference numerals 1, back plate; 3, middle frame, 31, side wall of the middle frame, 32, raised portion of the middle frame; 21, reflective sheet, 22, light guide plate, 23, optical film; Display panel; 5, light bar; 6, bead; 7, front frame; 8, heat sink.
  • connection In the description of the present invention, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined.
  • the ground connection, or the integral connection may be a mechanical connection; it may be directly connected, or may be indirectly connected through an intermediate medium, and may be internal communication between the two elements.
  • the specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.
  • the embodiment of the invention provides a method for preparing a display module.
  • the display module includes a backlight module and a display panel disposed on the backlight module.
  • the backlight module includes a back panel and is disposed on the back panel.
  • the backlight assembly on the back panel supports the backlight assembly, and the backlight assembly is mainly used to provide a light source to the display panel to display the screen.
  • the method for preparing the display module includes the following steps:
  • a backing plate 1 is provided, and a dispensing is performed on the bottom surface of the backing plate 1.
  • the position of the primary dispensing corresponds to the colorless transparent portion of the two-color molding middle frame 3 which will be described in detail later, and the position 1a is the adhesive state glue formed after one dispensing.
  • the applied glue is photosensitive glue, also known as UV curing glue (UV glue), shadowless glue, which can be cured under a certain range of ultraviolet light to form a glue layer.
  • UV glue UV curing glue
  • the two-color forming middle frame 3 includes three side walls 31 connected in sequence, and the three side walls 31 enclose a receiving space, as shown in FIG. 2b.
  • the central portion of each side wall 31 extends vertically into the receiving space with a raised portion 32, each side wall 31 being colored, and each raised portion 32 includes a colorless transparent portion (referenced in Figure 2b) 320), the colorless transparent portion faces the light exit end surface of the light guide plate 22 described below.
  • the three raised portions 32 extending from the three side walls 31 of the middle frame 3 are on the same plane, so that the display panel 4 is subsequently placed on the upper surface of the middle frame 3.
  • protrusion portion 32 includes a colorless transparent portion
  • a colorless transparent portion can be understood as the convex portion 32 being entirely colorless and transparent, or as shown in Fig. 2b, the convex portion 32 including the colored portions 321 which are sequentially connected.
  • a colorless transparent portion 320 a colorless transparent portion 320.
  • the colored portion 310 is connected to the side wall 31, and the colorless transparent portion 320 is away from the side wall 31 perpendicular thereto.
  • the longitudinal section of the middle frame 3 is shape.
  • the longitudinal section of the middle frame 3 may also be in an "L" shape, and the convex portion 32 extends vertically from the bottom of the side wall 31 into the receiving space.
  • the middle frame 3 includes a first sidewall 311, a second sidewall 312, and a third sidewall 313 that are sequentially connected, wherein the second sidewall 312 is located at the first sidewall 311 and the second sidewall Between the three side walls 313, the second side wall 312 is perpendicular to the first side wall 311, and the second side wall 312 is perpendicular to the third side wall 313.
  • the three side walls enclose a " ⁇ " shaped receiving space.
  • Each side wall 31 has a convex portion 32 extending perpendicularly into the receiving space.
  • the three convex portions 32 also enclose a " ⁇ " shape, and the shape of the primary dispensing position 1a also has a " ⁇ " shape.
  • the middle frame 3 is an integrally formed plastic material.
  • a backlight assembly is disposed on the backplane 1.
  • the backlight assembly includes a reflective sheet 21, a light guide plate 22, an optical film 23, and the middle frame 3, which are sequentially stacked, so that the convex portion 32 is colorless.
  • the transparent portion 320 is disposed on the primary dispensing position 1a, and the colorless transparent portion 320 faces the backlight assembly, and the backlight assembly is located in the receiving space of the middle frame 3 (ie, the middle frame 3 surrounds the backlight assembly) Up), see Figure 2a, Figure 2b and Figure 3.
  • the middle frame 3 is disposed outside the backlight assembly and surrounds three sides of the backlight assembly, and the longitudinal section of the middle frame 3 is shape.
  • the raised portion 32 of the middle frame 3 may be partially or completely in contact with the backing plate 1, and the side wall 31 of the middle frame 3 is located outside the backing plate 1 and is not in contact with the backing plate 1.
  • the side wall 31 of the middle frame 3 is located outside the backing plate 1 and is not in contact with the backing plate 1.
  • the side wall 31 thereof may partially protrude.
  • the back plate 1 may also be in contact with the back plate 1 at the bottom of its side wall.
  • the portion of the middle frame 3 opposite to the reflective sheet 21, the light guide plate 22 and the optical film 23 is the end surface of the convex portion 32 away from the side wall 31 (that is, one of the colorless transparent portions 320). Side), so that after the display module is assembled, it can prevent light leakage.
  • the optical film 23 herein may include various optical films such as a prism sheet, a diffusion sheet, and a filter film, and is not particularly limited herein.
  • the optical film 23 includes a first diffusion sheet, a prism sheet, and a second diffusion sheet which are sequentially stacked on the light guide plate 22.
  • the position 1b of the secondary dispensing is between the upper surface of the colorless transparent portion 320 of the convex portion 32 and the display panel 4.
  • the display panel 4 is also above the raised portion 32 of the middle frame.
  • the glue position 1a formed by the above dispensing is located between the lower surface of the colorless transparent portion 320 of the middle frame 3 and the backing plate 1.
  • the shape of the position 1b of the secondary dispensing may also be in the shape of " ⁇ ".
  • the display panel 4 covers all or part of the raised portion 32 of the middle frame 3, but preferably covers the colorless transparent portion 320 entirely.
  • step S40 when the display panel 4 and the backlight assembly are stacked together, they can be fixed by a jig (not shown).
  • the "light-incident surface of the light guide plate 22" may be irradiated with ultraviolet light from the arrow in Fig. 4b.
  • a light board with an ultraviolet light source is placed on one end surface of the light guide plate 22.
  • the ultraviolet light emitted from the ultraviolet light source can be incident perpendicularly to the end surface of the light guide plate 22.
  • the wide arrow in Figure 5b represents the direction of illumination of the ultraviolet light source.
  • the UV curable light source can be removed after the glue has cured.
  • a violet curing light source is disposed on one end surface of the light guiding plate 22, and the light guiding plate 22 is used to realize single-side light guiding.
  • the light guiding plate 22 may be further disposed.
  • the UV-cured light source is placed on both sides, and of course, it can be irradiated from three sides.
  • the backlight module formed by the backplane 1 and the backlight assembly is a side-in type backlight module. Therefore, when the side end surface of the light guide plate 22 is irradiated with ultraviolet light (in FIG. 4c, it can be understood as a horizontal direction), the ultraviolet light is used.
  • the total reflection can occur in the light guide plate 22, and finally is emitted from the light guide plate 22, and is conducted to the primary dispensing position 1a and the secondary dispensing position 1b to cure the glue at the two dispensing positions to form a photosensitive adhesive layer. .
  • the sum of the height h of the convex portion and the thickness of the photosensitive adhesive layer at the primary dispensing position 1a is greater than or equal to the sum of the heights of the backlight assembly 20 (in FIG. 4c) It is the sum of the heights of the reflection sheet 21, the light guide plate 22, and the optical film 23.
  • the ultraviolet curing light source can be irradiated from below the light guide plate 22, that is, the vertical direction in FIG. 4c, the light guide plate 22 and the back plate. The location between 1.
  • the display module is prepared by the above preparation method, and the method adopts a two-color molding middle frame 3 of a specific structure, and performs a dispensing on the back plate 1 corresponding to the colorless transparent portion of the middle frame 3, and corresponding display of the colorless transparent portion thereof.
  • the upper surface of the panel 4 is subjected to secondary dispensing.
  • the ultraviolet light can be transmitted to the two dispensing positions and the glue is solidified into a photosensitive adhesive layer, compared with the existing one.
  • structural glue is used to bond the display panel and the backlight module, and the method can greatly shorten the curing time of the glue and greatly improve the assembly efficiency.
  • the light guide plate 22 can be irradiated with light that can crack the photosensitive adhesive layer, thereby conveniently and effectively separating the components of the display module for maintenance and the like.
  • the method further includes:
  • FIG. 6, FIG. 7a and FIG. 7b together, placing the light bar 5 on the light incident surface of the light guide plate 22; then placing the bead 6 so that the bead 6 is on the display panel 4 Between the light guide plate 22 and the outside of the light bar 5; then placing a front frame 7 outside the bead 6 to partially extend the display panel 4 into the front frame 7 to complete the display Preparation of the module.
  • the light bar 5 equipped with the illumination light source is fixed on the heat sink 8.
  • the heat sink 8 includes a side wall 81 and a bottom portion 82.
  • the back plate 1 is carried on the bottom portion 82 of the heat sink 8, and the side wall 81 of the heat sink is fixed.
  • the light bar 5 can be an LED light bar.
  • One end of the bead 6 is between the display panel 4 and the light guide plate 22, and the other end is located outside the side wall 81 of the heat sink 8.
  • the front frame 7 is located outside the bead 6, and the display panel 4 partially protrudes into the front frame 7.
  • the heat sink 8, the front frame 7, and the bead 6 may all be made of metal.
  • the display module includes a backlight module and a display panel 4 disposed on the backlight module.
  • the backlight module includes a backboard 1 and a backlight assembly 20 disposed on the backplane 1.
  • the backlight assembly 20 includes a reflection sheet 21, a light guide plate 22, an optical film 23, and the like which are sequentially laminated on the back sheet 1, and the back sheet 1 supports the backlight assembly 20.
  • the backlight module further includes a two-color molding middle frame 3 (see FIG. 2b).
  • the middle frame 3 includes three side walls 31 connected in series, and the three side walls 31 enclose a receiving space, and the middle of each side wall 31 A raised portion 32 is vertically extended in the receiving space, the side wall 31 is colored, and the raised portion 32 includes a colorless transparent portion.
  • the convex portion 32 of the middle frame 3 and the backlight assembly 20 are located on the back plate 1 , and the backlight assembly 20 is located in the receiving space of the middle frame 3 .
  • the display panel 4 is located above the boss 32.
  • the first photosensitive adhesive layer 1a is disposed between the back plate 1 and the colorless transparent portion of the convex portion 32 of the middle frame 3, and functions to fix the back plate 1 and the middle frame 3.
  • the upper surface of the colorless transparent portion of the convex portion 32 is further provided with a second photosensitive adhesive layer 1b between the display panel 4 and the colorless transparent portion of the convex portion 32. The function of the middle frame 3 and the display panel 4 is fixed.
  • the photosensitive adhesive layer is only disposed on the upper and lower surfaces of the colorless transparent portion of the two-color molding middle frame 3, so the curing time of the photosensitive adhesive layer in the forming process is short, and when the display module needs to be reworked
  • the cracking light source can be used to crack and peel off the photosensitive adhesive layer, and the display panel 4 and the backlight assembly are separated, and the display panel 4 and the backlight assembly are not easily damaged, thereby greatly improving the processing yield.
  • the backlight module further comprises a light bar 5 with an illumination source, a bead 6 and a front frame 7.
  • the backlight module is mainly used to provide a light source to the display panel 4 to cause the display panel 4 to display a picture.
  • the light guide plate 22 is used to convert the linear light emitted by the illumination light source on the light bar 5 (not the ultraviolet curing light source mentioned in the above curing, the ultraviolet curing light source has been removed after the glue is solidified) into the surface light with high luminous efficiency.
  • the optical film 24 herein may specifically include a diffusion sheet, a prism sheet, a diffusion sheet, and the like which are laminated, but is not limited thereto.
  • the diffusing sheet can further scatter the surface light formed by the light guide plate 22 evenly, and then the surface light enters the prism sheet, and the surface light finally forms a backlight having a specific illumination angle through the action of the prism sheet.
  • the reflection sheet 22 is used to reflect the light partially emitted from the light guide plate 23 back into the light guide plate 14, thereby improving the utilization of light.
  • the backlight module is a side-lit backlight module.
  • the light bar 5 is disposed at the side of the light guide plate 22 (ie, in the horizontal direction in FIG. 4c), and may also be disposed on opposite sides of the light guide plate 22 to
  • the light guide plate 22 is used to realize double-sided light guiding to enhance the light intensity, and three or four sides can also be disposed.
  • the light bar 5 when the backlight module is a direct type backlight module, the light bar 5 may be disposed under the light guide plate 22 (ie, in the vertical direction in FIG. 4c, such as the light guide plate 22 and the back). The position between the plates 1 or the back plate 1).
  • the light bar 5 can be fixed to the side wall 81 of the heat sink 8 by screws or rivets, and the bottom surface of the back plate 1 can be fixed on the bottom 82 of the heat sink 8; and the bead is fixed outside the side wall 81 of the heat sink 8. 6 (for example, snapping, screwing, etc.), the other strip of the bead 6 is located above the heat sink 8 and extends between the display panel 4 and the light guide plate 22; the front frame 7 is fixed to the outside of the bead 6 (can be screwed , the card is engaged, and the display panel 4 is partially inserted into the front frame 7 to hold the display panel 4.
  • the backing plate 1 is a flat plate structure.
  • other structures may be used, such as a structure having a bottom plate and two side plates connected thereto.
  • the use of the heat sink 8 described above can be omitted, and the light bar 5 can be fixed on the side plate of the back plate (side-in backlight module) or the bottom plate of the back plate (straight-in backlight module).
  • a display device which includes the display module as described in any of FIG. 1a to FIG. 9, and of course, other known structures such as a power supply unit and a drive control unit. A detailed description will not be given here.
  • the display device in this embodiment may be a liquid crystal display device or an OLED display device.
  • it may also be: electronic paper, mobile phone, tablet computer, television, display, notebook computer, digital photo frame, navigator, etc., having any display function. Product or part.
  • the display device of the embodiment includes the display module described above. Therefore, the display device can be assembled conveniently, so that the frame of the display device is extremely narrow or even without a frame, thereby improving the appearance effect of the display device.

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Abstract

本发明提供了一种显示模组的制备方法；在背板的底面上一次点胶；提供双色成型中框，中框包括依次连接的三个侧壁，侧壁形成收容空间，侧壁向收容空间内垂直延伸有凸起部，侧壁带有颜色，凸起部包括无色透明部分；在背板上放置中框以及包括叠设的反射片、导光板的背光组件，使凸起部的无色透明部分置于一次点胶位置上，且朝向背光组件，背光组件处于收容空间内；在无色透明部分的上表面进行二次点胶；将显示面板放置于背光组件上，并使其在二次点胶位置上；采用紫外固化光源对导光板的入光面进行照射，使紫外光传至一次点胶位置和二次点胶位置以固化这两处的胶水。该制备方法利于中框凸起部上下表面胶水的快速固化，且该显示模组的重工也较便捷。

Description

显示模组及其制备方法和显示装置
本申请要求于2018年01月26日提交中国专利局、申请号为201810081680.2、发明名称为“显示模组和显示装置”的中国专利申请的优先权，上述在先申请的内容以引入的方式并入本文本中。
技术领域
本发明涉及显示技术领域，具体涉及一种显示模组及其制备方法和显示装置。
背景技术
随着显示技术的发展，电视等常见显示装置的外观逐渐向窄边框或无边框发展，这样就通常需要采用结构胶水将显示面板固定在背光模组上。然而所采用的结构胶水等粘性材料在现有显示装置中的固化时间较长，且显示装置的拆卸重工较困难，大大降低了生产效率。
发明内容
有鉴于此，本发明提供一种显示模组和显示装置，利于胶水的快速固化，并且其重工工艺快捷简单。
具体地，本发明第一方面提供了一种显示模组的制备方法，包括：
提供一背板，在背板的底面上进行一次点胶；
提供一双色成型中框，所述中框包括依次连接的三个侧壁，所述三个侧壁形成收容空间，每个所述侧壁的底部或中部向所述收容空间内垂直延伸有凸起部，所述侧壁带有颜色，所述凸起部包括无色透明部分；
在所述背板上放置所述中框以及背光组件，使所述凸起部的无色透明部分置于所述一次点胶位置上，且所述无色透明部分朝向所述背光组件，所述背光组件处于所述收容空间内；所述背光组件包括依次层叠在背板上的反射片、导 光板和光学膜片；
在所述凸起部的无色透明部分的上表面进行二次点胶；将显示面板放置于所述背光组件上，并使所述显示面板位于所述二次点胶位置上；
采用紫外固化光源对所述导光板的入光面进行照射，使紫外光传至所述一次点胶位置和二次点胶位置以固化所述点胶位置处的胶水。
其中，所述凸起部包括有色部分和无色透明部分，所述有色部分与所述侧壁相连；或者所述凸起部全部为无色透明状。
其中，从所述中框的三个侧壁所延伸出的三个凸起部在同一平面上。进一步地，所述三个凸起部的高度相同。
可选地，所述中框包括顺次连接的第一侧壁、第二侧壁和第三侧壁，其中，所述第二侧壁位于所述第一侧壁与所述第三侧壁之间，且所述第二侧壁与所述第一侧壁与所述第三侧壁均垂直；所述中框呈П形。
其中，所述中框为一体成型的塑胶材质。
具体地，所述中框设置在所述背光组件之外，包围所述背光组件的三侧。所述中框沿垂直所述侧壁(包括第一侧壁、第二侧壁和第三侧壁)方向的纵截面均呈
Figure PCTCN2018077263-appb-000001
形。此时，三个凸起部均自每个侧壁的中部延伸而出。即，所述中框沿垂直第一侧壁和垂直于从所述第一侧壁中部延伸出的第一凸起部的方向上的纵截面呈
Figure PCTCN2018077263-appb-000002
形；所述中框沿垂直第二侧壁和垂直于从所述第二侧壁中部延伸出的第二凸起部的方向上的纵截面呈
Figure PCTCN2018077263-appb-000003
形。
其中，所述凸起部的高度与所述一次点胶位置处的胶层厚度之和大于或等于所述背光组件的高度之和。
其中，在所述固化胶水之后，还包括：
移去所述紫外固化光源，在所述导光板的入光面放置灯条；
放置压条，使所述压条处于所述显示面板与导光板之间，且位于所述灯条的外部；
在所述压条的外部放置前框，使所述显示面板部分伸入所述前框内，完成所述显示模组的制备。
本发明第一方面提供的显示模组的制备方法中，采用特定结构的双色成型中框，通过在背板上对应其凸起部的无色透明部分进行一次点胶，以及其无色 透明部分对应显示面板的上表面进行二次点胶，通过对导光板的端面照射紫外光可将紫外光传导至上述两处点胶位置并使胶水固化成光敏胶层，相较于现有技术中采用结构胶水来粘接显示面板和背光模组，该方法可大大缩短胶水的固化时间，极大提升了组装效率。而且，当该显示模组需要重工时，可在导光板照射可使上述光敏胶层裂解的光线，从而便捷有效地分离出显示模组的各部件以进行维修等。
本发明第二方面提供了一种显示模组，包括背光模组和设置在所述背光模组之上的显示面板，所述背光模组包括背板和置于所述背板上的背光组件，所述背光组件包括依次层叠在所述背板上的反射片、导光板、光学膜片；
所述背光模组还包括双色成型中框，所述中框包括依次连接的三个侧壁，所述三个侧壁形成收容空间，每个所述侧壁的底部或中部向所述收容空间内垂直延伸有凸起部，所述侧壁带有颜色，所述凸起部包括无色透明部分；
其中，所述中框的凸起部及所述背光组件位于所述背板之上，且所述背光组件处于所述收容空间内，所述无色透明部分朝向所述背光组件；其中，所述背板与所述无色透明部分之间，以及所述显示面板与所述无色透明部分之间均设有光敏胶层。
本发明第二方面提供的显示模组，采用本发明第一方面所述的方法制备得到，该显示模组结构中，双色成型中框的无色透明部分的侧面对着导管板的出光端面，而光敏胶层仅仅在该中框的无色透明部分的上下表面设置，因此该胶层在形成过程中的固化时间短，而在该显示模组需要重工时，可采用裂解光源使该光敏胶层进行裂解、脱落，不易损坏显示面板和背光组件，极大提升了加工良率。
本发明第三方面提供了一种显示装置，所述显示装置包括如本发明第一方面所述的显示模组。
本发明的优点将会在下面的说明书中部分阐明，一部分根据说明书是显而易见的，或者可以通过本发明实施例的实施而获知。
附图说明
为更清楚地阐述本发明的构造特征和功效，下面结合附图与具体实施例来 对其进行详细说明。
图1a为本发明实施例中在背板上进行一次点胶的示意图；
图1b为图1a中A区域的放大图；
图2a为在背板上放置中框、背光组件的示意图；
图2b为图2a中B区域的放大图；
图2c为图2b中的中框3的俯视图；
图3为在图2b的基础上进行二次点胶的示意图；
图4a为在二次点胶后放置显示面板的示意图；
图4b为图4a中C区域的放大图；
图4c为图4a中A-A方向的剖视图；
图5a为采用紫外固化光源对导光板22进行照射的示意图；
图5b为图5a中D区域的放大图；
图6为撤去紫外固化光源后放置灯条、压条、前框的示意图；
图7a为显示模组的一个视角的结构示意图；
图7b为图7a中B-B方向的剖视图；
图8为显示模组的另一视角的结构示意图；
图9为图8中显示模组的分解图。
主要附图标记：1、背板；3、中框，31、中框的侧壁，32、中框的凸起部；21、反射片，22、导光板，23、光学膜片；4、显示面板；5、灯条；6、压条；7、前框；8、热沉。
具体实施方式
下面将结合本发明实施方式中的附图，对本发明实施方式中的技术方案进行清楚、完整地描述。显然，所描述的实施方式是本发明的一部分实施方式，而不是全部实施方式。基于本发明中的实施方式，本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施方式，都应属于本发明保护的范围。
此外，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。本发明中所提到的方向用语，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，使用的方向用语是为了更好、更清楚地说明及理解本发明，而不是指示或暗指所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”、“第三”等仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸地连接，或者一体地连接；可以是机械连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
本发明实施例提供了一种显示模组的制备方法，该显示模组包括背光模组和设置在该背光模组之上的显示面板，所述背光模组包括背板和置于该背板上的背光组件，背板支撑背光组件，背光组件主要用于向显示面板提供光源，以使显示面板显示画面。
具体地，该显示模组的制备方法，包括以下步骤：
S10、如图1a和图1b所示，提供一背板1，在背板1的底面上进行一次点胶。
其中，所述一次点胶的位置对应于下文将详述的双色成型中框3的无色透明部分，1a位置为一次点胶后形成的黏附态胶水。所涂布的胶水为光敏胶水，又称为紫外光固化胶(UV胶)、无影胶，可在一定范围的紫外光照射下固化形成胶层。
S20、提供一双色成型中框3，如图2a和图2c所示，该双色成型中框3包括依次连接的三个侧壁31，这三个侧壁31围成一收容空间，如图2b所示，每个侧壁31的中部向该收容空间内均垂直延伸有凸起部32，每个侧壁31带有颜色，每个凸起部32包括无色透明部分(在图2b中标号为320)，所述无色透明部分朝向下文所述的导光板22的出光端面。
可选地，从中框3的三个侧壁31所延伸出的3个凸起部32在同一平面上，这样便于后续在中框3的上表面放置显示面板4。
上述“凸起部32包括无色透明部分”可以理解为该凸起部32全部为无色 透明状，也可以是如图2b中所示，该凸起部32包括顺次相连的有色部分321和无色透明部分320。其中，有色部分310和与侧壁31相连，无色透明部分320远离与之垂直的侧壁31。本实施例中，所述中框3的纵截面呈
Figure PCTCN2018077263-appb-000004
形。
当然，在本发明其他实施方式中，中框3的纵截面也可以呈“L”型，此时凸起部32是自侧壁31的底部向收容空间内垂直延伸。
具体地，如图2c所示，中框3包括顺次连接的第一侧壁311、第二侧壁312和第三侧壁313，其中，第二侧壁312位于第一侧壁311与第三侧壁313之间，且第二侧壁312与第一侧壁311垂直，第二侧壁312与第三侧壁313垂直，这3个侧壁围成一“П”形的收容空间。每个侧壁31均向该收容空间内垂直延伸有凸起部32。这样，3个凸起部32也围成“П”形，上述一次点胶位置1a的形状也呈“П”形。
其中，该中框3为一体成型的塑胶材质。
S30、在所述背板1上放置背光组件，所述背光组件包括依次层叠的反射片21、导光板22、光学膜片23，以及上述中框3，使所述凸起部32的无色透明部分320置于上述一次点胶位置1a上，且无色透明部分320朝向所述背光组件，所述背光组件处于中框3的收容空间内(也即中框3将所述背光组件围设起来)，可参见图2a、图2b和图3。
具体地，所述中框3设置在所述背光组件之外，包围所述背光组件的三侧，所述中框3的纵截面呈
Figure PCTCN2018077263-appb-000005
形。可选地，中框3的凸起部32可以是部分或全部与背板1接触，而中框3的侧壁31位于所述背板1之外，未与背板1接触。当然在本发明其他实施方式中，当中框3的凸起部32自侧壁31的底部向内延伸时，此时将中框3置于背板1上时，其侧壁31可以部分伸出背板1，也可以是其侧壁的底部全部与背板1接触。
其中，反射片21、导光板22、光学膜片23等背光组件的放置和固定方式为现有技术，这里不再介绍。
所述中框3与所述反射片21、导光板22和光学膜片23相对且接触的部分为所述凸起部32的远离侧壁31的端面(也即是无色透明部分320的一侧面)，这样在显示模组组装完成后，可以防止漏光。
这里的光学膜片23可以包括棱镜片、扩散片、滤光膜等各种光学膜材， 这里对其不作具体限定。在本实施方式中，该光学膜片23包括依次叠置在导光板22上的第一扩散片、棱镜片和第二扩散片。
S40、如图3所示，在所述凸起部32的无色透明部分320的上表面进行二次点胶；如图4a和图4b所示，将显示面板4放置于上述背光组件上，并使显示面板4位于所述二次点胶的位置1b之上。
这里所述二次点胶的位置1b处于所述凸起部32的无色透明部分320的上表面与显示面板4之间。显示面板4也处于所述中框的凸起部32之上。而上述一次点胶形成的胶水位置1a位于中框3的无色透明部分320的下表面与背板1之间。这里二次点胶的位置1b的形状也可以呈“П”形。可选地，显示面板4全部或部分覆盖中框3的凸起部32，但最好能全部覆盖无色透明部分320。该步骤S40中，在将显示面板4与背光组件堆叠在一起时，可以采用治具对它们进行固定(图中未示出)。
S50、采用紫外固化光源对所述导光板22的入光面进行照射，使紫外光传至所述一次点胶位置1a和二次点胶位置1b，以固化这两个点胶位置处的胶水。
这里“导光板22的入光面”可以是从图4b中箭头处进行紫外光照射。可选地，如图5a和图5b所示，在导光板22的一端面立放一带有紫外光源的灯板。紫外光源发出的紫外光线可垂直入射到导光板22的端面上。图5b中的宽箭头代表紫外光源的照射方向。在胶水固化之后，可以将所述紫外固化光源撤去。
图5a中是在导光板22的一个端面放置紫光固化光源，利用导光板22实现单侧导光，可选地，为了缩短光敏胶的固化时间及加强UV光的强度，还可以在导光板22的两个侧面放置UV固化光源，当然还可以从三侧进行照射。
图4c为从图4b中从箭头方向看所述放置完显示面板后的显示模组的截面图，也可理解为图4a中A-A方向的剖视图。本实施例中背板1和背光组件构成的背光模组为侧入式背光模组，因此当从采用紫外光照射导光板22的侧端面时(在图4c可理解为水平方向)，紫外光线能在导光板22内发生全反射，并最终从导光板22射出，传导至一次点胶位置1a和二次点胶位置1b处，以固化这两个点胶位置处的胶水，形成光敏胶层。
如图4c所示，可选地，所述凸起部的高度h与上述一次点胶位置1a处的 光敏胶层的厚度之和，大于或等于背光组件20的高度之和(在图4c中为反射片21、导光板22和光学膜片23的高度之和)。
在本发明其他实施方式中，若该背光模组为直下式背光模组，可将紫外固化光源从导光板22的下方进行照射，即图4c中的竖直方向上，导光板22与背板1之间的位置。
采用上述制备方法来制备显示模组，该方法采用特定结构的双色成型中框3，通过在背板1上对应中框3的无色透明部分进行一次点胶，以及其无色透明部分对应显示面板4的上表面进行二次点胶，通过对导光板22的入光端面照射紫外光，可将紫外光传导至上述两处点胶位置并使胶水固化成光敏胶层，相较于现有技术中采用结构胶水来粘接显示面板和背光模组，该方法可大大缩短胶水的固化时间，极大提升了组装效率。而且，当该显示模组需要重工时，可在导光板22照射可使上述光敏胶层裂解的光线，从而便捷有效地分离出显示模组的各部件以进行维修等。
可选地，在上述步骤S50之后，还包括：
S60、移去所述紫外固化光源；请一并参阅图6、图7a和图7b，在导光板22的入光面放置灯条5；然后放置压条6，使所述压条6处于显示面板4与导光板22之间，且位于所述灯条5的外部；之后在所述压条6的外部放置前框7，使所述显示面板4部分伸入所述前框7内，完成所述显示模组的制备。
其中，装有照明光源的灯条5固定在热沉8上，热沉8包括侧壁81与底部82，背板1承载于热沉8的底部82上，热沉的侧壁81上固定有上述灯条5。该灯条5可以为LED灯条。而压条6的一端处于所述显示面板4与导光板22之间，另一端位于热沉8的侧壁81的外部。前框7位于压条6的外部，且所述显示面板4部分伸入所述前框7内。可选地，所述热沉8、前框7、压条6可以均为金属材质。
下面介绍一下通过上述制备方法制得的显示模组。如图4c所示，该显示模组包括背光模组和设置在该背光模组之上的显示面板4，所述背光模组包括背板1和置于该背板1上的背光组件20，该背光组件20包括依次层叠在该背板1上的反射片21、导光板22和光学膜片23等，背板1支撑背光组件20。
所述背光模组还包括双色成型中框3(参见图2b)，中框3包括依次连接 的三个侧壁31，这三个侧壁31围成一收容空间，每个侧壁31的中部向该收容空间内垂直延伸有凸起部32，侧壁31带有颜色，凸起部32包括无色透明部分。所述中框3的凸起部32及背光组件20位于背板1之上，且背光组件20处于中框3的收容空间内。显示面板4位于凸起部32之上。
其中，背板1与中框3的凸起部32的无色透明部分之间设有第一光敏胶层1a，起到固定背板1与中框3的作用。而凸起部32的无色透明部分的上表面还设有第二光敏胶层1b，该二光敏胶层1b处于显示面板4与所述凸起部32的无色透明部分之间，起到固定中框3与显示面板4的作用。
该显示模组结构中，光敏胶层仅仅在该双色成型中框3的无色透明部分的上下表面设置，因此光敏胶层在形成过程中的固化时间短，而在该显示模组需要重工时，可采用裂解光源来使该光敏胶层裂解、脱落，分离出显示面板4和背光组件，且不易损坏显示面板4和背光组件，极大提升了加工良率。
如图7a、图7b、图8和图9所示，该背光模组还包括带有照明光源的灯条5、压条6和前框7。背光模组主要用于向显示面板4提供光源，以使显示面板4显示画面。导光板22用于将灯条5上的照明光源(不是上述固化时提及的紫外固化光源，紫外固化光源在胶水固化后就已移去)发出的线性光转变为发光效率高的面性光。这里的光学膜片24具体可以包括层叠设置的扩散片、棱镜片和扩散片等，但不限于此。其中，扩散片可将导光板22形成的面性光进一步散射均匀，之后面光线进入棱镜片，经过棱镜片的作用，面光线最终形成具有特定照射角度的背光。而反射片22用于将部分射出导光板23的光线反射回导光板14中，提高光的利用率。
这里的背光模组为侧入式背光模组，此时灯条5布置在导光板22的侧面处(即图4c中的水平方向上)，还可以设置在导光板22的相对两侧，以利用导光板22实现双侧导光，以使光线强度增强，还可以设置三侧或四侧等。而在本发明其他实验方式中，当背光模组为直下式背光模组，此时灯条5可以布置在导光板22的下方(即图4c中的竖直方向上，例如导光板22与背板1之间的位置或背板1上)。
其中，灯条5可以通过螺钉或铆钉固定在热沉8的侧壁81，而背板1的底面可以固定在热沉8的底部82上；而热沉8的侧壁81之外固定有压条6(例 如卡合，螺纹连接等)，压条6的另一条位于热沉8的上方，且伸入显示面板4与导光板22之间；前框7固定在压条6的外部(可以通过螺纹连接、卡合等)，且使显示面板4部分伸入前框7内，以固持显示面板4。
上述所示出的各图中，背板1为一平板结构，在本发明其他实施方式中，还可以为其他结构，例如具有一底板和与之连接的两侧板的结构。此时，可以省去上述热沉8的使用，而将灯条5固定在背板的侧板上(侧入式背光模组)，或者背板的底板上(直入式背光模组)。
此外，本发明实施例中还提供了一种显示装置，其包括如图1a-图9任一所述的显示模组，当然还应当包括其他如电源单元以及驱动控制单元等已知的结构，在此不再进行详细描述。
本实施例中的显示装置可以为液晶显示装置、OLED显示装置，另外，还可以为：电子纸、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。
本实施例的显示装置包括上述所描述的显示模组，因此，可便捷地组装该显示装置，使所述显示装置的边框极窄甚至无边框，提高了该显示装置的外观效果。
以上所述仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易的想到各种等效的修改或替换，这些修改或替换都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以权利要求的保护范围为准。

Claims (17)

  1. 一种显示模组的制备方法，其中，包括：
    提供一背板，在背板的底面上进行一次点胶；
    提供一双色成型中框，所述中框包括依次连接的三个侧壁，所述三个侧壁形成收容空间，每个所述侧壁的底部或中部向所述收容空间内垂直延伸有凸起部，所述侧壁带有颜色，所述凸起部包括无色透明部分；
    在所述背板上放置所述中框以及背光组件，使所述凸起部的无色透明部分置于所述一次点胶位置上，且所述无色透明部分朝向所述背光组件，所述背光组件处于所述收容空间内；所述背光组件包括依次层叠在背板上的反射片、导光板和光学膜片；
    在所述凸起部的无色透明部分的上表面进行二次点胶；将显示面板放置于所述背光组件上，并使所述显示面板位于所述二次点胶位置上；
    采用紫外固化光源对所述导光板的入光面进行照射，使紫外光传至所述一次点胶位置和二次点胶位置以固化所述点胶位置处的胶水。
  2. 根据权利要求1所述的显示模组的制备方法，其中，所述凸起部包括有色部分和无色透明部分，所述有色部分与所述侧壁相连；或者所述凸起部全部为无色透明状。
  3. 根据权利要求1所述的显示模组的制备方法，其中，从所述中框的三个侧壁所延伸出的三个凸起部在同一平面上。
  4. 根据权利要求3所述的显示模组的制备方法，其中，所述中框包括顺次连接的第一侧壁、第二侧壁和第三侧壁，其中，所述第二侧壁位于所述第一侧壁与所述第三侧壁之间，且所述第二侧壁与所述第一侧壁与所述第三侧壁均垂直；所述中框的收容空间呈П形。
  5. 根据权利要求1所述的显示模组的制备方法，其中，所述中框为一体成型的塑胶材质。
  6. 根据权利要求4所述的显示模组的制备方法，其中，所述凸起部的高度与所述一次点胶位置处的胶层厚度之和大于或等于所述背光组件的高度之和。
  7. 根据权利要求4所述的显示模组的制备方法，其中，所述中框的三个凸起部的底部全部或部分地与所述背板相接触，所述中框的三个侧壁位于所述背板之外。
  8. 根据权利要求4所述的显示模组的制备方法，其中，所述中框的三个侧壁的底部全部或部分地与所述背板相接触。
  9. 根据权利要求1所述的显示模组的制备方法，其中，在所述固化胶水之后，还包括：
    移去所述紫外固化光源，在所述导光板的入光面放置灯条；
    放置压条，使所述压条处于所述显示面板与导光板之间，且位于所述灯条的外部；
    在所述压条的外部放置前框，使所述显示面板部分伸入所述前框内，完成所述显示模组的制备。
  10. 一种显示模组，其中，包括背光模组和设置在所述背光模组之上的显示面板，所述背光模组包括背板和置于所述背板上的背光组件，所述背光组件包括依次层叠在所述背板上的反射片、导光板、光学膜片；
    所述背光模组还包括双色成型中框，所述中框包括依次连接的三个侧壁，所述三个侧壁形成收容空间，每个所述侧壁的底部或中部向所述收容空间内垂直延伸有凸起部，所述侧壁带有颜色，所述凸起部包括无色透明部分；
    其中，所述中框的凸起部及所述背光组件位于所述背板之上，且所述背光组件处于所述收容空间内，所述无色透明部分朝向所述背光组件；其中，所述背板与所述无色透明部分之间，以及所述显示面板与所述无色透明部分之间均设有光敏胶层。
  11. 根据权利要求10所述的显示模组，其中，所述凸起部包括有色部分和无色透明部分，所述有色部分与所述侧壁相连；或者所述凸起部全部为无色透明状。
  12. 根据权利要求10所述的显示模组，其中，从所述中框的三个侧壁所延伸出的三个凸起部在同一平面上。
  13. 根据权利要求10所述的显示模组，其中，处于所述背板与所述无色透明部分之间的光敏胶层的厚度与所述凸起部的高度之和大于或等于所述背 光组件的高度之和。
  14. 根据权利要求12所述的显示模组，其中，所述中框的三个凸起部的底部全部或部分地与所述背板相接触，所述中框的三个侧壁位于所述背板之外。
  15. 根据权利要求12所述的显示模组，其中，所述中框的三个侧壁的底部全部或部分地与所述背板相接触，所述中框的三个凸起部的底部全部与所述背板相接触。
  16. 根据权利要求13所述的显示模组，其中，所述背光模组还包括带灯条的热沉、压条和前框；其中，所述热沉包括侧壁与底部，所述背板承载于所述热沉的底部上，所述热沉的侧壁上固定有所述灯条；
    所述压条处于所述显示面板与导光板之间，且位于所述热沉的侧壁的外部；
    所述前框位于所述压条的外部，且所述显示面板部分伸入所述前框内。
  17. 一种显示装置，其中，包括如权利要求10所述的显示模组。
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