WO2018036170A1 - 膜材、背光模组和显示装置 - Google Patents

膜材、背光模组和显示装置 Download PDF

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Publication number
WO2018036170A1
WO2018036170A1 PCT/CN2017/079718 CN2017079718W WO2018036170A1 WO 2018036170 A1 WO2018036170 A1 WO 2018036170A1 CN 2017079718 W CN2017079718 W CN 2017079718W WO 2018036170 A1 WO2018036170 A1 WO 2018036170A1
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WO
WIPO (PCT)
Prior art keywords
film
connecting portion
openings
degrees
projection
Prior art date
Application number
PCT/CN2017/079718
Other languages
English (en)
French (fr)
Inventor
夏继泰
张启平
孙文波
Original Assignee
京东方科技集团股份有限公司
合肥京东方显示光源有限公司
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 京东方科技集团股份有限公司, 合肥京东方显示光源有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/567,872 priority Critical patent/US10324248B2/en
Priority to JP2017554843A priority patent/JP6978320B2/ja
Publication of WO2018036170A1 publication Critical patent/WO2018036170A1/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
    • G02B6/0033—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
    • 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
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • 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
    • 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
    • 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

  • At least one embodiment of the present disclosure is directed to a film, a backlight module, and a display device.
  • the liquid crystal display mainly includes a liquid crystal panel and a backlight.
  • the backlights can be mainly classified into LED (Light Emitting Diode) and CCFL (Cold Cathode Fluorescent Lamp, CCFL) backlights according to the type of light source; Tablet, Notebook, Monitor, TV, etc.
  • LED Light Emitting Diode
  • CCFL Cold Cathode Fluorescent Lamp
  • At least one embodiment of the present disclosure relates to a film material, a backlight module, and a display device, which can reduce structural defects and poor picture defects caused by optical film jumping and displacement in a backlight module, and improve structural stability of the backlight. And quality.
  • At least one embodiment of the present disclosure provides a film material including: a first body having a plate-like structure, a protrusion protruding from an edge of the first body in a plane in which the first body is located, and a positioning structure intersecting a surface of the projection, the positioning structure comprising a second body and one or more openings, the second body comprising a blocking portion and a connecting portion, the blocking portion passing through the connecting portion Connected to the projection, the one or more openings are disposed between the barrier and the projection.
  • the one or more openings are flush with the surface of the projection adjacent the edge of the projection.
  • the length of the one or more openings occupies 1/2-2/3 of the length of the positioning structure in a direction along a line of intersection of the locating structure and the bulge.
  • the positioning structure has a plurality of openings that are sequentially arranged along a direction of intersection of the positioning structure and the projection.
  • the surface of the connecting portion is a flat surface.
  • the angle of the connecting portion to the projection is approximately 90 degrees.
  • the angle between the barrier and the connecting portion is approximately 90 degrees or 180 degrees.
  • an angle between the blocking portion and the connecting portion is approximately 90 degrees, and the blocking portion and the protruding portion are respectively located on both sides of a plane in which the connecting portion is located.
  • the projection has one or more openings, one or more openings of the projection in communication with one or more openings of the positioning structure.
  • the blocking portion includes a first blocking portion and a second blocking portion, the first blocking portion being connected to the protruding portion through the connecting portion, the first blocking portion and the connecting portion
  • the angle between the second blocking portion and the first blocking portion is about 90 degrees.
  • the connecting portion includes a first connecting portion proximate the protruding portion and a second connecting portion proximate the blocking portion, the first connecting portion and the second connecting portion intersecting,
  • the first connecting portion and the second connecting portion have a plate-like structure, an angle between the first connecting portion and the second connecting portion is about 90 degrees, and the blocking portion and the second connecting portion The angle between the first connecting portion and the protruding portion is about 90 degrees.
  • the connecting portion has a first portion having a plane that intersects the projection, the first portion being at an angle greater than 0 degrees and less than 180 degrees from the projection.
  • the angle of the first portion to the projection is approximately 90 degrees.
  • the film is a diffusion sheet.
  • At least one embodiment of the present disclosure also provides a backlight module including any of the film materials described in the embodiments of the present disclosure.
  • the backlight module further includes a frame, wherein the frame includes a groove located inside the frame and recessed toward the frame body, and the film is disposed in the frame, The projection of the membrane is disposed within the groove of the frame to position the membrane.
  • the backlight module further includes a second film having a body of a plate-like structure from the second film in a plane in which the body of the second film is located A raised portion of the edge of the body, the projection of the second film passing through the one or more openings of the positioning structure to position the second film.
  • the protrusion of the second film includes a first protrusion proximate the body of the second film and a body remote from the second film from the first protrusion Bumped edge
  • One or more second projections, and the second projections pass through one or more openings of the positioning structure.
  • the frame between the slot of the frame and the outside of the frame, the frame includes two projections that protrude from the ends of the slot toward the middle of the slot, the two The projections are spaced apart from each other in the extending direction of the frame, and at least a portion of the blocking portion of the first film rides over the two projections.
  • At least one embodiment of the present disclosure further provides a display device including any of the backlight modules described in the embodiments of the present disclosure.
  • FIG. 1 is a schematic structural view of a backlight module
  • FIG. 2 is a schematic view showing a combination of a frame and a diffusion sheet in a backlight module
  • 3a is a schematic view of a film fixing tape fixing film in a backlight module
  • FIG. 3b is a schematic view of a film fixing tape in a backlight module at a diffusion blade positioning wing
  • FIG. 4a is a schematic view of a film material provided in Embodiment 1 of the present disclosure.
  • FIG. 4b is a schematic view of a positioned film material (second film material) provided in Embodiment 1 of the present disclosure
  • Figure 5 is a schematic view showing a film material according to Embodiment 2 of the present disclosure.
  • FIG. 6a is a schematic view of a film material provided in Embodiment 3 of the present disclosure.
  • FIG. 6b is a schematic view showing a film material according to Embodiment 3 of the present disclosure.
  • Figure 7 is a schematic view showing a film material according to Embodiment 4 of the present disclosure.
  • FIG. 8 is a schematic view of a film material according to Embodiment 5 of the present disclosure.
  • FIG. 9 is a schematic view showing a film material according to Embodiment 6 of the present disclosure.
  • Figure 10 is a schematic view showing a film material according to Embodiment 7 of the present disclosure.
  • Figure 11a is a schematic view of a film material according to Embodiment 8 of the present disclosure.
  • Figure 11b is a schematic view of a positioned film material (second film material) provided in Example 8 of the present disclosure.
  • Figure 11c is a schematic view showing another film material provided in Embodiment 8 of the present disclosure.
  • FIG. 11d is a schematic view of another membrane material provided in Example 8 of the present disclosure.
  • Figure 12 is a schematic view showing a film material according to Embodiment 9 of the present disclosure.
  • Figure 13 is a schematic view showing a film material according to Embodiment 10 of the present disclosure.
  • FIG. 14 is a schematic diagram of a backlight module according to Embodiment 11 of the present disclosure.
  • FIG. 15 is a front view of a backlight module according to Embodiment 11 of the present disclosure.
  • FIG. 16 is a schematic diagram of another backlight module according to Embodiment 11 of the present disclosure.
  • FIG. 17 is a front view of another backlight module according to Embodiment 11 of the present disclosure.
  • FIG. 18 is a schematic diagram of film positioning of another backlight module according to Embodiment 11 of the present disclosure.
  • FIG. 1 is a schematic cross-sectional view of a conventional notebook (NB) backlight in a fixed position of the film.
  • the frame 02 is placed in the back plate 01, in the area defined by the frame 02 in the back plate 01, from the back plate.
  • 01 is a bottom surface away from the bottom surface of the back plate 01, and a reflection sheet 03, a light guide plate 04, a diffusion sheet 05, and a brightness enhancement sheet 06 are sequentially disposed, and a film fixing tape 07 is used to fix the film material.
  • the light-increasing sheet 06 includes a first light-increasing sheet and a second light-increasing sheet which are sequentially placed on the diffusion sheet 05, but the number of the optical sheets placed on the diffusion sheet is not limited thereto, and for example, one or more than two, The disclosed embodiments do not limit this.
  • FIG. 2 is a schematic view showing the assembly and structure of a positioning position of a NB backlight film.
  • the frame 02 includes a groove (notch) 0211
  • the diffusion sheet 05 includes a main body 051 having a plate-like structure and a projection 052 protruding from the edge of the main body 051 from the edge of the main body 051 to the main body 051.
  • the material of the diffusion sheet 05 is, for example, Includes PET, but is not limited to this.
  • the diffusion sheet 05 is placed in the frame 02, and at the same time, the projection portion 052 of the diffusion sheet 05 (also referred to as a positioning wing) Put into the slot 0211 of the frame 02, and then sequentially add the brightness enhancement sheet 06 (the brightness enhancement sheet 06 including the first brightness enhancement sheet 061 and the second brightness enhancement sheet 062) on the diffusion sheet 05, and then use the film fixing tape 07 to All of the optical film is fixed to the groove 0211 of the frame 02.
  • the brightness enhancement sheet 06 the brightness enhancement sheet 06 including the first brightness enhancement sheet 061 and the second brightness enhancement sheet 062
  • Figure 3a shows a partial enlarged view of the position of a conventional NB backlight at the film fixing tape.
  • the position of the ends of the arrow in Fig. 3a is the glued area 072 of the film fixing tape 07, and the portion between the two arrows corresponding to the positioning wing is the glueless area 071.
  • the groove depth is only about 0.05-0.1 mm higher than the upper surface of the brightness enhancement sheet 06, and the adhesive area of the gel is limited, and the swaying during transportation, the film fixing tape 07
  • the adhesion force is easy to fail and collapse.
  • the displacement of the film causes the liquid crystal display to have a thickness exceeding the specification at a local position. For a module with a printed black-edged diffuser, it is more prone to black line shifting to block the edge of the pixel caused by the lack of line defects, and the quality of the product is difficult to ensure, thus solving this problem.
  • the colloid of the film fixing tape 07 exists only at both ends of the tape (shaded portion filled in the drawing), and the center position (with the position of the film positioning wing)
  • the overlap region) is free of colloids, so that under high temperature conditions, the position of the optical film positioning wings can be freely expanded without sheet defects of sheet wrinkle.
  • At least one embodiment of the present disclosure provides a film material including: a first body having a plate-like structure, a protrusion protruding from an edge of the first body in a plane in which the first body is located, and a protrusion with the protrusion a surface-aligning positioning structure, the positioning structure comprising a second body and one or more openings, the second body comprising a blocking portion and a connecting portion, the blocking portion being connected to the protruding portion by the connecting portion, and the one or more openings being disposed at the blocking portion Between the protrusion and the protrusion.
  • the film material provided by at least one embodiment of the present disclosure can effectively reduce the optical film material in the backlight module Structural defects caused by tripping (such as partial thickness over-spec) and poor picture (such as missing peripheral lines) improve the structural stability and quality of the backlight.
  • the present embodiment provides a film 1 comprising: a first body 10 having a plate-like structure, a projection projecting from an edge of the first body 10 in a plane in which the first body 10 is located 20, and a positioning structure 30 intersecting a surface of the projection 20, the positioning structure 30 includes a second body 301 and an opening 302, the second body 301 includes a blocking portion 3011 and a connecting portion 3012, and the blocking portion 3011 is connected through the connecting portion 3012 The projections 20 are connected, and the opening 302 is disposed between the blocking portion 3011 and the projection 20.
  • an opening is taken as an example, but it is not limited thereto, and a plurality of openings 302 may be provided.
  • the opening 302 may be a hole or a hole of a regular pattern such as a rectangle, a circle, or the like, but is not limited thereto.
  • the boundaries of one or more of the openings 302 described above may be defined by the second body 301 and the projections 20.
  • the intersection of A and B, for example, means that A and B have an included angle which is greater than 0 degrees and less than 180 degrees.
  • the opening 302 forms a "doorway" structure in the positioning structure 30 such that other membranes can be positioned through the "doorway” structure such that at least one of the membranes is positioned relative to one another by a "doorway” configuration. Therefore, at least one of the optical films is prevented from being displaced or displaced, and the structure is poor, the picture is poor, and the structural stability and quality of the backlight are improved.
  • the film 1 may be configured to position the second film (the positioned film) 2, and the positioned second film 2 may depend on the opening form of the film 1 (the opening form includes, for example, the number of openings, shape, etc.)
  • the shape of the second projection is determined to facilitate matching with the film 1.
  • the second film has a body 50 of a plate-like structure, and a first protrusion that protrudes from the edge of the body 50 of the second film 2 in a plane in which the body 50 of the second film 2 is located.
  • the outlet portion 60 and the second projection 70 projecting from the edge of the first projection portion 60 in the plane in which the first projection portion 60 is located.
  • the second projection 70 can pass through the opening 302 to position the second film 2.
  • the length of the second protrusion 70 is smaller than the length of the opening 302 to facilitate the passage of the second protrusion 70 through the opening. 302.
  • the length of the second protrusion 70 is less than the length of the opening 302 by about 0.5 mm, but is not limited thereto.
  • the height of the opening 302 needs to be larger than the thickness of the second film 2, which may vary depending on the thickness of the second film 2.
  • the height of the opening 302 is between 0.3 mm and 0.5 mm, but is not limited thereto.
  • the projection of the second film 2 may include a first protrusion 60 near the body of the second film and a second protrusion 70 protruding from an edge of the body 50 of the first protrusion 60 away from the second film 2, and a second protrusion
  • the outlet 70 passes through the opening 302 of the positioning structure.
  • the number of second projections 70 may match the number of openings 302, a second projection is shown in Figure 4b, and a plurality of second is shown in Figure 11b below. The case of the bulge.
  • the opening 302 is close to the edge and projection of the projection 20.
  • the surface of 20 is flush.
  • the lower surface of the positioned second film 2 can be placed flat on the upper surface of the film 1.
  • the boundaries of the one or more openings 302 described above may be defined by the blocking portion 3011, the connecting portion 3012, and the projections 20.
  • the length of the opening 302 is 1/2-2/3 of the length of the positioning structure 30 in the direction of the intersection line 321 of the positioning structure 30 and the projection 20.
  • the length of the plurality of openings 302 in the direction of the intersection line 321 of the positioning structure 30 and the projections 20 occupies 1/2-2/3 of the length of the positioning structure 30.
  • the length of the plurality of openings refers to the total length of the plurality of openings, that is, the sum of the lengths of the respective openings.
  • the surface of the connecting portion 3012 is a flat surface
  • the angle between the connecting portion 3012 and the protruding portion 20 is about 90 degrees (right angle)
  • the angle between the blocking portion 3011 and the connecting portion 3012 is about 180. Degree (flat angle).
  • the surface of the connecting portion 3012 may not be a flat surface
  • the angle between the connecting portion 3012 and the protruding portion 20 may not be a right angle
  • the blocking portion 3011 and the connecting portion 3012 may be omitted.
  • the angle between the two may not be 180 degrees.
  • the film 1 may be a diffusion sheet, but is not limited thereto.
  • the second film 2 may be a brightness enhancement sheet, but is not limited thereto.
  • the film 1 is a first brightness enhancement sheet and the second film material 2 is a second brightness enhancement sheet.
  • the first body 10, the projection 20, and the second body 301 are integrally formed. Therefore, the production of the film 1 can be facilitated, but it is not limited to integral molding.
  • the first body 10, the protruding portion 20, and the second body 301 may be detachably connected between at least two components, so that the film material can be repaired, and only the problematic first body 10 and the protruding portion 20 are replaced. Part or all of the second body 301 without replacing the entire membrane.
  • This embodiment differs from Embodiment 1 in that, as shown in FIG. 5, the angle between the blocking portion 3011 and the connecting portion 3012 is approximately 90 degrees.
  • the blocking portion 3011 and the connecting portion 3012 are perpendicular to each other, and thus the blocking portion A part of the surface of the 3011 can be overlapped on the frame 02, so that the film can be positioned more stably under the support of the frame, and is not easily displaced relative to the frame.
  • the blocking portion 3011 and the protruding portion 20 may be disposed on both sides of the plane in which the connecting portion 3012 is located.
  • This embodiment differs from Embodiment 2 in that, as shown in FIG. 6a, the blocking portion 3011 includes an opening 30110, and the opening 30110 of the blocking portion 3011 communicates with the opening 302 of the positioning structure 30. Thereby, the material can be saved, and the opening space of the positioning structure is also increased, which is more advantageous for the insertion of the second film.
  • the connecting portion 3012 includes a first connecting portion 30121 near the protruding portion 20 and a second connecting portion 30122 near the blocking portion 3011.
  • the first connecting portion 30121 and the second connecting portion 30122 intersect, first The connecting portion 30121 and the second connecting portion 30122 have a plate-like structure.
  • the angle between the first connecting portion 30121 and the second connecting portion 30122 is a right angle, and the angle between the blocking portion 3011 and the second connecting portion 30122 is about 180 degrees.
  • the angle between the first connecting portion 30121 and the protruding portion 20 is approximately 90 degrees.
  • the surface of the connecting portion 3012 is not planar.
  • the connecting portion 3012 has a first portion (first connecting portion 30121) having a plane intersecting the protruding portion 20, and the angle between the first portion and the protruding portion 20 is greater than 0 degrees and less than 180 degrees. .
  • the angle between the first portion and the projection 20 is approximately 90 degrees.
  • the protrusion 20 further includes an opening 200, and the opening 200 of the protrusion 20 communicates with the opening 302 of the positioning structure 30, thereby opening the blocking portion 3011. 30110.
  • the opening 302 of the positioning structure 30 and the opening 200 of the protruding portion 20 are in communication. Thereby, the material can be further saved, and the opening space of the positioning structure is further increased, which further facilitates the insertion of the second film.
  • the protruding portion 20 may have an opening 200 , and the opening 200 of the protruding portion 20 penetrates through the plurality of openings 302 of the positioning structure 30 .
  • the protrusions 20 may have a plurality of openings 200, and the plurality of openings 200 of the protrusions 20 are in one-to-one correspondence with the plurality of openings 302 of the positioning structure 30, and corresponding openings Through.
  • the embodiments of the present disclosure do not limit this.
  • the blocking portion 3011 includes the first blocking. Part 30111 and second blocking portion 30112.
  • the first blocking portion 30111 is connected to the protruding portion 20 through the connecting portion 3012.
  • the angle between the first blocking portion 30111 and the connecting portion 3012 is about 180 degrees
  • the angle between the second blocking portion 30112 and the first blocking portion 30111 is about 90 degrees. degree.
  • the blocking portion 3011 is disposed as the first blocking portion 30111 and the second blocking portion 30112 which are perpendicular to each other, so that the positioned film material has more movable space at the position where it is positioned (at the positioning wing), and does not affect the second film. Under the premise of fixing, it can help to reduce the sheet wrinkle.
  • the embodiment is different from the embodiment 5.
  • the protrusion 20 further includes an opening 200, and the opening 200 of the protrusion 20 communicates with the opening 302 of the positioning structure 30, thereby saving material.
  • the opening space of the positioning structure is increased to facilitate the insertion of the second film.
  • the embodiment is different from the embodiment 1.
  • the protrusion 20 further includes an opening 200, and the opening 200 of the protrusion 20 communicates with the opening 302 of the positioning structure 30, thereby saving material.
  • the opening space of the positioning structure is increased to facilitate the insertion of the second film.
  • the positioning structure 30 includes a plurality of openings 302.
  • two openings 3021 and 3022 are included as an example, and two or more openings may be included.
  • the embodiment does not limit this.
  • the plurality of openings 302 are sequentially arranged in the direction of the intersection line of the positioning structure 30 and the projections 20.
  • each opening 302 near the projection 20 is flush with the surface of the projection 20.
  • the length of the plurality of openings 302 occupies 1/2-2/3 of the length of the positioning structure 30.
  • the projection 20 can have one or more openings 200 with one or more openings 200 of the projection 20 in communication with one or more openings 302 of the positioning structure 30.
  • the protrusion 20 has a plurality of openings 302, and the plurality of openings 200 of the protrusions 20 having the plurality of openings 302 are in one-to-one correspondence with the plurality of openings 302 of the positioning structure 30, and the corresponding opening phases Through.
  • the opening 3021 of the positioning structure 30 corresponds to the opening 2001 of the protruding portion 20
  • the opening 3022 of the positioning structure 30 corresponds to the opening 2002 of the protruding portion 20 and penetrates.
  • the projection 20 has an opening 200 and an opening of the projection 20. 200 passes through a plurality of openings 302 of the positioning structure 30.
  • the second projection 70 includes two raised portions 701, 702 to match the two openings 3021, 3022.
  • the positioning structure 30 includes a plurality of openings 302, which may include openings that are not closed, in addition to the closed openings.
  • the middle two openings 3022, 3023 of Figure 12 are closed openings, and the openings 3021, 3024 at both ends are unclosed openings. The arrangement of the unclosed opening can facilitate the matching of the film 1 with the frame.
  • Embodiment 13 differs from Embodiment 1 in that, as shown in FIG. 13, the positioning structure 30 includes two openings 302, and both of the openings 3021, 3022 may be openings that are not closed.
  • the positioning structure 30 may include openings that are closed or unclosed, and may have both closed openings and unclosed openings. As long as the opening cooperates with the second body 301, it can function to position the second film 2.
  • the form of the opening is not limited.
  • the film 1 provided by the above disclosure may be any film that needs to be positioned in cooperation with other films.
  • it can be an optical film in a backlight module.
  • the embodiment provides a backlight module comprising at least a plurality of optical film materials, and at least one optical film material is the film material 1 provided by any of the above embodiments.
  • the backlight module includes the film 1 (shown in Figure 4a) and the positioned second film 2 (shown in Figure 4b) as described in Example 1. Both the film 1 and the second film 2 are optical films.
  • the backlight module further includes a frame 02.
  • the frame 02 includes a slot 0211 which is located inside the frame 02 and is recessed toward the frame body 021.
  • the film 1 is disposed in the frame 02, and the protrusion 20 of the film 1 is provided. It is disposed in the groove 0211 of the frame 02 to position the film 1.
  • the positioned film material (the second film material 2) may be one or more, which is not limited in this embodiment.
  • the second projection of the second film 2 may pass through the opening of the positioning structure of the first film 1, and the first projection of the second film 2 may also be disposed in the groove 0211 of the frame 02.
  • the main view of this example can be as shown in Figure 15.
  • the backlight module further includes a back plate 01, a reflection sheet 03, a light guide plate 04, and a film fixing tape 07.
  • the back plate 01, the reflection sheet 03, the light guide plate 04, and the film fixing tape 07 reference may be made to the description of FIG.
  • the film 1 may be disposed on the light guide plate 04 and in contact with the light guide plate 04, and disposed at The other optical film on the film 1 can be positioned as the second film 2 by the film 1 so that the film above the light guide plate 04 in the backlight module can be well positioned to avoid the jump of the optical film.
  • the structure is poor, the picture is poor, and the structural stability and quality of the backlight are improved.
  • the film 1 is a diffusion sheet
  • the second film 2 is a brightness enhancement sheet
  • the second film material includes a first light enhancement sheet and a second light enhancement sheet, but is not limited thereto.
  • the second film 2 includes another diffusion sheet and a brightness enhancement sheet, and the optical effect of the positioned film material in this embodiment is not limited.
  • the backlight module includes the film 1 (shown in FIG. 8) described in Embodiment 5.
  • the main view of this example can be as shown in Figure 17.
  • the frame 02 includes two projections 0212 protruding from the both ends of the groove 0211 toward the middle of the groove 0211, and two projections 0212 They are spaced apart from each other in the extending direction of the frame 02.
  • at least a portion of the blocking portion 3011 of the positioning structure 30 of the first film 1 may be placed on the two projections 0212 (see Fig. 18).
  • the second protrusion of the second film 2 can pass through the opening of the positioning structure of the first film 1, the second protrusion of the second film 2 can also protrude into the two protrusions.
  • the second film 2 is inserted into the opening structure at the position of the positioning wing by using the second projection 70 described in FIG. 4b, and the tape is fixed by the film. 07 fixed. Due to the movement limitation of the "door hole” structure, the second film 2 on the film 1 or the like is not detached from the positioning groove during the transportation process or the assembly process, and due to the limitation of the structure, The glueless region is greatly reduced in the vertical direction by the positioning optical film under the second film 2, etc., and the fixing effect of the film fixing tape is ensured.
  • the embodiment provides a display device, including the backlight module provided in the above embodiment 11.
  • the display device can be any display device that requires backlighting of the backlight module.
  • the display device may be a display device such as a liquid crystal display, an electronic paper, an OLED (Organic Light-Emitting Diode) display, and a television, a digital camera, a mobile phone, a watch, a tablet, a notebook computer, and a navigation device including the display device. Any product or component that has a display function.

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Abstract

一种膜材(1)、背光模组和显示装置。膜材(1)包括：具有板状结构的第一主体(10)，在第一主体(10)所在的平面内从第一主体(10)的边缘凸出的凸出部(20)，以及与凸出部(20)的一个表面相交的定位结构(30)，定位结构(30)包括第二主体(301)和一个或多个开口(302)，第二主体(301)包括阻挡部(3011)和连接部(3012)，阻挡部(3011)通过连接部(3012)与凸出部(20)相连，一个或多个开口(302)设置在阻挡部(3011)和凸出部(20)之间。膜材(1)可降低背光源模组中因光学膜材跳脱移位造成的结构不良、画面不良，提高背光源的结构稳定性及品质。

Description

膜材、背光模组和显示装置 技术领域
本公开至少一实施例涉及一种膜材、背光模组和显示装置。
背景技术
液晶显示器(Liquid Crystal Display)主要包括了液晶面板和背光源。背光源按光源种类主要可分为LED(Light Emitting Diode，发光二极管，简称LED)背光源与CCFL(Cold Cathode Fluorescent Lamp，冷阴极荧光灯，简称CCFL)背光源；按尺寸种类主要可分为Mobile，Tablet，Notebook，Monitor，TV等。近年来，液晶显示器的发展十分迅猛。
发明内容
本公开的至少一实施例涉及一种膜材、背光模组和显示装置，以降低背光源模组中因光学膜材跳脱移位造成的结构不良、画面不良，提高背光源的结构稳定性及品质。
本公开的至少一实施例提供一种膜材，包括：具有板状结构的第一主体，在所述第一主体所在的平面内从所述第一主体的边缘凸出的凸出部，以及与所述凸出部的一个表面相交的定位结构，所述定位结构包括第二主体和一个或多个开口，所述第二主体包括阻挡部和连接部，所述阻挡部通过所述连接部与所述凸出部相连，所述一个或多个开口设置在所述阻挡部和所述凸出部之间。
在一些示例中，所述一个或多个开口靠近所述凸出部的边缘与所述凸出部的所述表面平齐。
在一些示例中，沿所述定位结构与所述凸出部的相交线的方向上，所述一个或多个开口的长度占所述定位结构长度的1/2-2/3。
在一些示例中，所述定位结构具有多个开口，所述多个开口沿所述定位结构与所述凸出部的相交线的方向依次排列。
在一些示例中，所述连接部的表面为平面。
在一些示例中，所述连接部与所述凸出部的夹角大约为90度。
在一些示例中，所述阻挡部和所述连接部之间的夹角大约为90度或180度。
在一些示例中，所述阻挡部和所述连接部之间的夹角大约为90度，且所述阻挡部和所述凸出部分别位于所述连接部所在的平面的两侧。
在一些示例中，所述凸出部具有一个或多个开口，所述凸出部的一个或多个开口与所述定位结构的一个或多个开口相连通。
在一些示例中，所述阻挡部包括第一阻挡部和第二阻挡部，所述第一阻挡部通过所述连接部与所述凸出部相连，所述第一阻挡部和所述连接部的夹角大约为180度，所述第二阻挡部与所述第一阻挡部的夹角大约为90度。
在一些示例中，所述连接部包括靠近所述凸出部的第一连接部和靠近所述阻挡部的第二连接部，所述第一连接部和所述第二连接部相交，所述第一连接部和所述第二连接部具有板状结构，所述第一连接部和所述第二连接部之间的夹角大约为90度，所述阻挡部和所述第二连接部的夹角大约为180度，所述第一连接部与所述凸出部的夹角大约为90度。
在一些示例中，所述连接部具有与所述凸出部相交的具有平面的第一部分，所述第一部分与所述凸出部的夹角大于0度小于180度。
在一些示例中，所述第一部分与所述凸出部的夹角大约为90度。
在一些示例中，所述膜材是扩散片。
本公开的至少一实施例还提供一种背光模组，包括本公开实施例所述的任一膜材。
在一些示例中，所述背光模组还包括框架，其中，所述框架包括位于所述框架内侧并向所述框架本体方向凹入的槽，所述膜材设置于所述框架内，所述膜材的所述凸出部设置于所述框架的所述槽内以定位所述膜材。
在一些示例中，所述背光模组还包括第二膜材，所述第二膜材具有板状结构的主体、在所述第二膜材的主体所在的平面内从所述第二膜材的主体的边缘凸出的凸出部，所述第二膜材的凸出部穿过所述定位结构的一个或多个开口以定位所述第二膜材。
在一些示例中，所述第二膜材的凸出部包括靠近所述第二膜材的主体的第一凸出部以及从所述第一凸出部的远离所述第二膜材的主体的边缘凸出的 一个或多个第二凸出部，且所述第二凸出部穿过所述定位结构的一个或多个开口。
在一些示例中，在所述框架的槽与所述框架的外侧之间，所述框架包括从所述槽的两端向所述槽的中部凸出的两个凸出部，所述两个凸出部在所述框架的延伸方向上彼此间隔，所述第一膜材的阻挡部的至少一部分搭在所述两个凸出部上。
本公开的至少一实施例还提供一种显示装置，包括本公开实施例所述的任一背光模组。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对实施例的附图作简单地介绍，显而易见地，下面描述中的附图仅仅涉及本公开的一些实施例，而非对本公开的限制。
图1为一种背光模组结构示意图；
图2为一种背光模组中框架与扩散片组合的示意图；
图3a为一种背光模组中膜材固定胶带固定膜材的示意图；
图3b为一种背光模组中膜材固定胶带在扩散片定位翼处的示意图；
图4a为本公开实施例1提供的一种膜材示意图；
图4b为本公开实施例1提供的被定位的膜材(第二膜材)的示意图；
图5为本公开实施例2提供的一种膜材示意图；
图6a为本公开实施例3提供的一种膜材示意图；
图6b为本公开实施例3提供的一种膜材示意图；
图7为本公开实施例4提供的一种膜材示意图；
图8为本公开实施例5提供的一种膜材示意图；
图9为本公开实施例6提供的一种膜材示意图；
图10为本公开实施例7提供的一种膜材示意图；
图11a为本公开实施例8提供的一种膜材示意图；
图11b为本公开实施例8提供的被定位的膜材(第二膜材)的示意图；
图11c为本公开实施例8提供的另一种膜材示意图；
图11d为本公开实施例8提供的另一种膜材示意图；
图12为本公开实施例9提供的一种膜材示意图；
图13为本公开实施例10提供的一种膜材示意图；
图14为本公开实施例11提供的一种背光模组的示意图；
图15为本公开实施例11提供的一种背光模组的主视图；
图16为本公开实施例11提供的另一种背光模组的示意图；
图17为本公开实施例11提供的另一种背光模组的主视图；
图18为本公开实施例11提供的另一种背光模组的膜材定位示意图。
具体实施方式
为使本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公开实施例的附图，对本公开实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。基于所描述的本公开的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。
除非另外定义，本公开使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。同样，“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。
图1所示的是通常的笔记本(Notebook，NB)背光源在膜材固定位置的剖面示意图，框架02置于背板01内，在背板01内框架02限定的区域内，从靠近背板01底面到远离背板01底面的方向上，依次设置有反射片03、导光板04、扩散片05和增光片06，膜材固定胶带07被用来固定膜材。增光片06包括依次放置在扩散片05上的第一增光片和第二增光片，但扩散片上放置的光学膜片的个数不限于此，例如，还可以为一个或者多于两个，本公开的实施例对此不做限定。
图2所示的是一种NB背光源膜材定位位置的组装及结构示意图。框架02包括槽(缺口)0211，扩散片05包括具有板状结构的主体051以及在主体051所在的平面上从主体051的边缘凸出于主体051的凸出部052，扩散片05的材质例如包括PET，但不限于此。在完成反射片03、导光板04、框架02、背板01的组装，得到半成品后，将扩散片05放入框架02内，同时，扩散片05的凸出部052(亦可称作定位翼)放进框架02的槽0211内，再依次将增光片06(增光片06包括第一增光片061和第二增光片062)叠加放置在扩散片05之上，再利用膜材固定胶带07将所有光学膜材配合框架02上的槽0211结构固定住。
由于膜材在定位翼的位置不可完全被膜材固定胶带07粘住，因为完全钉扎后在高温条件下由于扩散片05的膨胀特性易产生板材褶皱(sheet wrinkle)不良，故在设置膜材固定胶带结构时会规避这一隐患。图3a所示的是通常的NB背光源在膜材固定胶带位置的局部放大图。图3a中两端箭头位置的为膜材固定胶带07的有胶区域072，两个箭头之间的对应于定位翼的部分为无胶区域071。由于框架02上的槽结构，其组装完成后，槽深度仅仅比增光片06的上表面约高0.05-0.1mm，且胶体的黏着面积有限，加上运输过程中的晃动，膜材固定胶带07的粘贴力极易失效、瓦解。膜材发生移位，导致液晶显示器在局部位置有厚度超规格。对于有印刷黑边的扩散片的模组来说，更是易出现黑边移位遮挡边缘像素点造成的线缺失画面不良，产品的品质很难确保，从而亟待解决这一问题。
如图3b中膜材固定胶带07的背面结构示意图所示，膜材固定胶带07的胶体仅仅存在于胶带的两个端部(图中填充的阴影部分)，居中位置(与膜材定位翼位置重叠区域)无胶体存在，这样在高温条件下，光学膜材定位翼位置可自由膨胀不会发生板材褶皱(sheet wrinkle)的画面不良现象。
本公开至少一实施例提供一种膜材，包括：具有板状结构的第一主体，在第一主体所在的平面内从第一主体的边缘凸出的凸出部，以及与凸出部的一个表面相交的定位结构，定位结构包括第二主体和一个或多个开口，第二主体包括阻挡部和连接部，阻挡部通过连接部与凸出部相连，一个或多个开口设置在阻挡部和凸出部之间。
本公开至少一实施例提供的膜材，可有效降低背光源模组中因光学膜材 跳脱移位造成的结构不良(例如局部厚度超规格)、画面不良(例如周边线缺失)，提高背光源的结构稳定性及品质。
以下通过几个实施例进行进一步说明。
实施例1
如图4a所示，本实施例提供一种膜材1，包括：具有板状结构的第一主体10，在第一主体10所在的平面内从第一主体10的边缘凸出的凸出部20，以及与凸出部20的一个表面相交的定位结构30，定位结构30包括第二主体301和开口302，第二主体301包括阻挡部3011和连接部3012，阻挡部3011通过连接部3012与凸出部20相连，开口302设置在阻挡部3011和凸出部20之间。图4a中以设置一个开口为例进行说明，但不限于此，也可以设置多个开口302。例如，开口302可为矩形、圆形等规则图案的孔或洞，但并不限于此。例如，上述一个或多个开口302的边界可被第二主体301和凸出部20限定。A和B相交例如是指A和B具有夹角，该夹角大于0度小于180度。
例如，开口302在定位结构30中形成一个“门洞”结构，从而，可以通过“门洞”结构定位其他膜材，使得至少一种膜材通过“门洞”结构相互定位。从而避免其中至少一种光学膜材跳脱移位，或相互错位，避免结构不良、画面不良，提高背光源的结构稳定性及品质。
膜材1可被配置来定位第二膜材(被定位的膜材)2，被定位的第二膜材2可以依据膜材1的开口形态(开口形态例如包括开口的个数、形状等)来确定第二凸出部的形态以利于与膜材1的匹配。例如，如图4b所示，第二膜材具有板状结构的主体50、在第二膜材2的主体50所在的平面内从第二膜材2的主体50的边缘凸出的第一凸出部60以及在第一凸出部60所在的平面内从第一凸出部60的边缘凸出的第二凸出部70。第二凸出部70可穿过开口302以定位第二膜材2。例如，沿定位结构30与凸出部20的相交线321(如图4a所示)的方向上，第二凸出部70的长度小于开口302的长度以利于第二凸出部70穿过开口302，例如，第二凸出部70的长度小于开口302的长度约0.5mm，但不限于此。例如，开口302的高度需大于第二膜材2的厚度，可根据第二膜材2的厚度的不同而变化。例如，开口302的高度在0.3mm-0.5mm之间，但不限于此。也就是说，第二膜材2的凸出部可以包括 靠近所述第二膜材的主体的第一凸出部60以及从第一凸出部60的远离第二膜材2的主体50的边缘凸出的第二凸出部70，且第二凸出部70穿过定位结构的开口302。例如，第二凸出部70的个数可以与开口302的个数匹配，在图4b中示出了一个第二凸出部的情况，而在后面的图11b中示出了多个第二凸出部的情况。
例如，为了便于第二膜材插入到“门洞”结构中以及使得膜材1与第二膜材2的表面贴合，如图4a所示，开口302靠近凸出部20的边缘与凸出部20的表面平齐。从而，可以使得被定位的第二膜材2下表面可以平整的放在膜材1的上表面。从而，上述一个或多个开口302的边界可被阻挡部3011、连接部3012和凸出部20限定。
例如，如图4a所示，沿定位结构30与凸出部20的相交线321的方向上，开口302的长度占定位结构30长度的1/2-2/3。当定位结构30具有多个开口的情况下，沿定位结构30与凸出部20的相交线321的方向上，多个开口302的长度占定位结构30长度的1/2-2/3。多个开口的长度是指多个开口的总长度，也就是，各个开口的长度之和。
例如，如图4a所示，连接部3012的表面为平面，连接部3012与凸出部20的夹角大约为90度(直角)，阻挡部3011和连接部3012之间的夹角大约为180度(平角)。需要说明的是，图4a中以此为例进行说明，连接部3012的表面也可以不为平面，连接部3012与凸出部20的夹角也可不为直角，阻挡部3011和连接部3012之间的夹角也可不为180度。
例如，膜材1可以是扩散片，但不限于此。例如，第二膜材2可以为增光片，但不限于此。例如，膜材1为第一增光片，第二膜材2为第二增光片。
例如，第一主体10、凸出部20和第二主体301一体成型。从而，可以利于膜材1的制作，但不限于一体成型。比如，第一主体10、凸出部20和第二主体301至少两个部件之间可以是可拆卸连接，这样便于对膜材进行维修，仅替换出问题的第一主体10、凸出部20、第二主体301中的部分或全部，而无需替换整个膜材。
实施例2
本实施例与实施例1不同的是，如图5所示，阻挡部3011和连接部3012之间的夹角大约为90度。阻挡部3011和连接部3012相互垂直，进而阻挡部 3011的部分表面可搭接在框架02上，可使得膜材在框架的支撑下定位更稳定，不易相对框架移位。例如，阻挡部3011和凸出部20可以设置在连接部3012所在平面的两侧。
实施例3
本实施例与实施例2不同的是，如图6a所示，阻挡部3011包括开口30110，阻挡部3011的开口30110与定位结构30的开口302相连通。从而，可以节省材料，也增大了定位结构的开口空间，更利于第二膜材的插入。
本实施例也可以将开口30110和开口302看作一个开口，即定位结构的开口302。例如，如图6b所示，连接部3012包括靠近凸出部20的第一连接部30121和靠近阻挡部3011的第二连接部30122，第一连接部30121和第二连接部30122相交，第一连接部30121和第二连接部30122具有板状结构，第一连接部30121和第二连接部30122之间的夹角为直角，阻挡部3011和第二连接部30122的夹角大约为180度，第一连接部30121与凸出部20的夹角大约为90度。本实施例中，连接部3012的表面不为平面。
例如，如图6a、6b所示，连接部3012具有与凸出部20相交的具有平面的第一部分(第一连接部30121)，第一部分与凸出部20的夹角大于0度小于180度。例如，第一部分与凸出部20的夹角大约为90度。
实施例4
本实施例与实施例3不同的是，如图7所示，凸出部20还包括开口200，凸出部20的开口200与定位结构30的开口302相连通，从而，阻挡部3011的开口30110、定位结构30的开口302和凸出部20的开口200相连通。从而，可进一步节省材料，也进一步增大了定位结构的开口空间，进一步利于第二膜材的插入。
需要说明的是，当定位结构30具有多个开口302的情况下，凸出部20可以具有一个开口200，凸出部20的开口200与定位结构30的多个开口302相贯通。当定位结构30具有多个开口302的情况下，凸出部20可以具有多个开口200，凸出部20的多个开口200与定位结构30的多个开口302一一对应，并且对应的开口相贯通。本公开的实施例对此不作限定。
实施例5
本实施例与实施例1不同的是，如图8所示，阻挡部3011包括第一阻挡 部30111和第二阻挡部30112。第一阻挡部30111通过连接部3012与凸出部20相连，第一阻挡部30111和连接部3012的夹角大约为180度，第二阻挡部30112与第一阻挡部30111的夹角大约为90度。将阻挡部3011设置成互相垂直的第一阻挡部30111和第二阻挡部30112，可以使得被定位的膜材在被定位处(定位翼处)有更多的活动空间，不影响第二膜材的固定的前提下，可利于减缓褶皱(sheet wrinkle)不良。
实施例6
本实施例与实施例5不同的是，如图9所示，凸出部20还包括开口200，凸出部20的开口200与定位结构30的开口302相连通，从而，可节省材料，也增大了定位结构的开口空间，利于第二膜材的插入。
实施例7
本实施例与实施例1不同的是，如图10所示，凸出部20还包括开口200，凸出部20的开口200与定位结构30的开口302相连通，从而，可节省材料，也增大了定位结构的开口空间，利于第二膜材的插入。
实施例8
本实施例与实施例1不同的是，如图11a所示，定位结构30包括多个开口302，图11a中以包括两个开口3021、3022为例，亦可包括两个以上的开口，本实施例对此不作限定。
例如，多个开口302沿定位结构30与凸出部20的相交线的方向依次排列。
例如，每个开口302靠近凸出部20的边缘与凸出部20的表面平齐。
例如，沿定位结构30与凸出部20的相交线的方向上，多个开口302的长度占定位结构30长度的1/2-2/3。
例如，如图11c和图11d所示，凸出部20可具有一个或多个开口200，凸出部20的一个或多个开口200与定位结构30的一个或多个开口302相连通。图11c中，凸出部20具有多个开口302，凸出部20具有多个开口302凸出部20的多个开口200与定位结构30的多个开口302一一对应，并且对应的开口相贯通。例如图11c中，定位结构30的开口3021与凸出部20的开口2001对应并相贯通，定位结构30的开口3022与凸出部20的开口2002对应并相贯通。图11d中，凸出部20具有一个开口200，凸出部20的开口 200与定位结构30的多个开口302相贯通。
如图11b所示，第二凸出部70包括两个凸出部分701、702，以便与两个开口3021、3022相匹配。
实施例9
本实施例与实施例1不同的是，如图12所示，定位结构30包括多个开口302，除了包括封闭的开口外，还可以包括不封闭的开口。图12的中间两个开口3022、3023为封闭的开口，两端的开口3021、3024为不封闭的开口。不封闭的开口的设置，可以利于膜材1与框架的匹配。
实施例10
本实施例与实施例1不同的是，如图13所示，定位结构30包括两个开口302，两个开口3021、3022可以均为不封闭的开口。
从而，本公开实施例中，定位结构30可以包括的开口都是封闭的，也可以都是不封闭的，也可以既有封闭的开口，也有不封闭的开口。只要开口与第二主体301配合能够起到定位第二膜材2的作用即可。对于开口的形态不作限定。
本公开上述提供的膜材1可以是任何需要与其他膜材配合进行定位的膜材。比如可以是背光模组中的光学膜材。
实施例11
本实施例提供一种背光模组，至少包括多个光学膜材，至少一个光学膜材为上述任一实施例提供的膜材1。例如，一示例中，背光模组包括实施例1所述的膜材1(如图4a所示)和被定位的第二膜材2(如图4b所示)。膜材1和第二膜材2均为光学膜材。如图14所示，背光模组还包括框架02，框架02包括位于框架02内侧并向框架本体021方向凹入的槽0211，膜材1设置于框架02内，膜材1的凸出部20设置于框架02的槽0211内以定位膜材1。被定位的膜材(第二膜材2)可为一个或者多个，本实施例对此不作限定。第二膜材2的第二凸出部可以穿过第一膜材1的定位结构的开口，而第二膜材2的第一凸出部也可以设置在上述框架02的槽0211内。本示例的主视图可如图15所示。背光模组还包括背板01、反射片03、导光板04、膜材固定胶带07，有关背板01、反射片03、导光板04、膜材固定胶带07可参见图1的描述。例如，膜材1可设置在导光板04上并且与导光板04接触，设置在 膜材1上的其它光学膜材可作为第二膜材2被膜材1定位，从而使得背光模组中的导光板04以上的膜材都能被良好定位，避免光学膜材跳脱移位造成的结构不良、画面不良，提高背光源的结构稳定性及品质。例如，膜材1为扩散片，第二膜材2为增光片，第二膜材包括第一增光片和第二增光片，但不限于此。例如，第二膜材2包括另一扩散片和增光片，本实施例对被定位的膜材的光学作用不作限定。
与上述示例不同的另一示例中，如图16所示，背光模组包括实施例5所述的膜材1(如图8所示)。本示例的主视图可如图17所示。
如图16所示，在框架02的槽0211与框架02的外侧之间，框架02包括从槽0211的两端向槽0211的中部凸出的两个凸出部0212，两个凸出部0212在框架02的延伸方向上彼此间隔。在安装第一膜材时，第一膜材1的定位结构30的阻挡部3011的至少一部分可以搭在两个凸出部0212上(请参见图18)。另外，由于第二膜材2的第二凸出部可以穿过第一膜材1的定位结构的开口，因此，第二膜材2的第二凸出部也可以伸入到两个凸出部0212之间的间隔内。
如图18所示，在完成膜材1的组装后，第二膜材2在定位翼的位置利用图4b中所述的第二凸出部70插入到开口结构中，再利用膜材固定胶带07固定。由于受“门洞”结构的移动限制，在运输过程或者组装过程中，膜材1上的第二膜材2等被定位膜材不会跳脱至定位槽外，同时，由于该结构的限制，无胶区域受下方第二膜材2等被定位光学膜材在垂直方向上的挤压概率大大降低，确保了膜材固定胶带的固定作用。
实施例12
本实施例提供一种显示装置，包括上述实施例11提供的背光模组。显示装置可以为任何需要背光模组提供背光的显示装置。例如，显示装置可以为液晶显示器、电子纸、OLED(Organic Light-Emitting Diode，有机发光二极管)显示器等显示器件以及包括这些显示器件的电视、数码相机、手机、手表、平板电脑、笔记本电脑、导航仪等任何具有显示功能的产品或者部件。
有以下几点需要说明：
(1)除非另作定义，本公开实施例以及附图中，同一附图标记代表同一含义。
(2)本公开实施例附图中，只涉及到与本公开实施例涉及到的结构，其他结构可参考通常设计。
(3)为了清晰起见，在用于描述本公开的实施例的附图中，层或区域的厚度被放大。可以理解，当诸如层、膜、区域或基板之类的元件被称作位于另一元件“上”或“下”时，该元件可以“直接”位于另一元件“上”或“下”，或者可以存在中间元件。
(4)在不冲突的情况下，本公开的同一实施例及不同实施例中的特征可以相互组合。
以上所述，仅为本公开的具体实施方式，但本公开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公开揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以所述权利要求的保护范围为准。
本申请要求于2016年8月23日递交的中国专利申请第201610711590.8号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。

Claims (20)

  1. 一种膜材，包括：
    具有板状结构的第一主体，在所述第一主体所在的平面内从所述第一主体的边缘凸出的凸出部，以及与所述凸出部的一个表面相交的定位结构，其中，所述定位结构包括第二主体和一个或多个开口，所述第二主体包括阻挡部和连接部，所述阻挡部通过所述连接部与所述凸出部相连，所述一个或多个开口设置在所述阻挡部和所述凸出部之间。
  2. 根据权利要求1所述的膜材，其中，所述一个或多个开口靠近所述凸出部的边缘与所述凸出部的所述表面平齐。
  3. 根据权利要求1或2所述的膜材，其中，沿所述定位结构与所述凸出部的相交线的方向上，所述一个或多个开口的长度占所述定位结构长度的1/2-2/3。
  4. 根据权利要求1-3任一项所述的膜材，其中，所述定位结构具有多个开口，所述多个开口沿所述定位结构与所述凸出部的相交线的方向依次排列。
  5. 根据权利要求1-4任一项所述的膜材，其中，所述连接部的表面为平面。
  6. 根据权利要求5所述的膜材，其中，所述连接部与所述凸出部的夹角大约为90度。
  7. 根据权利要求6所述的膜材，其中，所述阻挡部和所述连接部之间的夹角大约为90度或180度。
  8. 根据权利要求7所述的膜材，其中，所述阻挡部和所述连接部之间的夹角大约为90度，且所述阻挡部和所述凸出部分别位于所述连接部所在的平面的两侧。
  9. 根据权利要求1-8任一项所述的膜材，其中，所述凸出部具有一个或多个开口，所述凸出部的一个或多个开口与所述定位结构的一个或多个开口相连通。
  10. 根据权利要求1-9任一项所述的膜材，其中，所述阻挡部包括第一阻挡部和第二阻挡部，所述第一阻挡部通过所述连接部与所述凸出部相连，所述第一阻挡部和所述连接部的夹角大约为180度，所述第二阻挡部与所述 第一阻挡部的夹角大约为90度。
  11. 根据权利要求1-9任一项所述的膜材，其中，所述连接部包括靠近所述凸出部的第一连接部和靠近所述阻挡部的第二连接部，所述第一连接部和所述第二连接部相交，所述第一连接部和所述第二连接部具有板状结构，所述第一连接部和所述第二连接部之间的夹角大约为90度，所述阻挡部和所述第二连接部的夹角大约为180度，所述第一连接部与所述凸出部的夹角大约为90度。
  12. 根据权利要求1-4任一项所述的膜材，其中，所述连接部具有与所述凸出部相交的具有平面的第一部分，所述第一部分与所述凸出部的夹角大于0度小于180度。
  13. 根据权利要求12所述的膜材，其中，所述第一部分与所述凸出部的夹角大约为90度。
  14. 根据权利要求1-13任一项所述的膜材，其中，所述膜材是扩散片。
  15. 一种背光模组，包括权利要求1-14任一项所述的膜材。
  16. 根据权利要求15所述的背光模组，还包括框架，其中，所述框架包括位于所述框架内侧并向所述框架本体方向凹入的槽，所述膜材设置于所述框架内，所述膜材的所述凸出部设置于所述框架的所述槽内以定位所述膜材。
  17. 根据权利要求15或16所述的背光模组，还包括第二膜材，所述第二膜材具有板状结构的主体、在所述第二膜材的主体所在的平面内从所述第二膜材的主体的边缘凸出的凸出部，所述第二膜材的凸出部穿过所述定位结构的一个或多个开口以定位所述第二膜材。
  18. 根据权利要求17所述的背光模组，其中，所述第二膜材的凸出部包括靠近所述第二膜材的主体的第一凸出部以及从所述第一凸出部的远离所述第二膜材的主体的边缘凸出的一个或多个第二凸出部，且所述第二凸出部穿过所述定位结构的一个或多个开口。
  19. 根据权利要求18所述的背光模组，其中，在所述框架的槽与所述框架的外侧之间，所述框架包括从所述槽的两端向所述槽的中部凸出的两个凸出部，所述两个凸出部在所述框架的延伸方向上彼此间隔，所述第一膜材的阻挡部的至少一部分搭在所述两个凸出部上。
  20. 一种显示装置，包括权利要求15-19任一项所述的背光模组。
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US20180292597A1 (en) 2018-10-11
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