WO2016074294A1 - 一种背光模组 - Google Patents

一种背光模组 Download PDF

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Publication number
WO2016074294A1
WO2016074294A1 PCT/CN2014/092893 CN2014092893W WO2016074294A1 WO 2016074294 A1 WO2016074294 A1 WO 2016074294A1 CN 2014092893 W CN2014092893 W CN 2014092893W WO 2016074294 A1 WO2016074294 A1 WO 2016074294A1
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WO
WIPO (PCT)
Prior art keywords
backlight module
light guide
guide plate
plate
light
Prior art date
Application number
PCT/CN2014/092893
Other languages
English (en)
French (fr)
Inventor
张彦学
Original Assignee
深圳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 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to US14/417,651 priority Critical patent/US10067280B2/en
Publication of WO2016074294A1 publication Critical patent/WO2016074294A1/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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
    • G02B6/0021—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses
    • 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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0031—Reflecting element, sheet or layer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • 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
    • G02B6/0066—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 characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
    • 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
    • G02B6/0091—Positioning aspects of the light source relative to the light guide
    • 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
    • G02F1/1335—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2101/00—Point-like light sources
    • 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
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, sheet or layer

Definitions

  • the present invention relates to a liquid crystal display technology, and more particularly to a backlight module.
  • the liquid crystal panel includes a backlight module and a liquid crystal screen attached to the backlight module.
  • the backlight module is used as a light source of the liquid crystal panel.
  • the LCD screen displays the graphics and colors by modulating the light emitted by the backlight module.
  • FIG. 1 shows a prior art backlight module.
  • the backlight module includes a square back plate 4, a plastic frame 3 mounted in the back plate 4 and attached to the inner side walls of the back plate 4, surrounded by the plastic frame 3, and clamped on the back plate by the plastic frame 3.
  • the light guide plate 2 in the 4, and the light bar 5 disposed at one end of the light guide plate 2.
  • a light emitting element (not shown) is disposed on the light bar 5. Light emitted from the light emitting element enters the light guide plate 2 from the side surface of the light guide plate 2. These rays are emitted from the exit surface of the light guide plate 2 after being reflected one or more times in the light guide plate 2.
  • the existing backlight module usually uses a black double-sided tape 6 to bond the backlight module and the liquid crystal panel 1.
  • the black double-sided tape 6 absorbs light and is frame-shaped, thus forming an inner frame which reduces the light-transmissive surface of the backlight module.
  • the technical problem to be solved by the present invention is to eliminate the outer frame of the backlight module.
  • a backlight module including: a light guide plate provided with a strip-shaped slit, and a light strip including a bottom plate and a plurality of mounts mounted on the bottom plate, each of the mounts Installed separately The component, wherein the bottom plate of the light bar is disposed to cooperate with the first surface of the light guide plate such that the mounts are all accommodated in the strip slots.
  • the bottom plate completely covers the strip slots.
  • the strip slots extend parallel to an outer side of the light guide.
  • the backlight module further includes a reflective sheet attached to the second surface of the light guide plate opposite to the first surface, and the mounting seat abuts the reflective sheet through the strip-shaped slit.
  • the light guide plate further includes a positioning table protruding from the second surface, one side of the reflective sheet abuts the positioning table, and the height of the positioning table is equal to the thickness of the reflective sheet.
  • the backlight module further includes an optical film attached to the first surface of the light guide plate and abutting the side surface of the bottom plate, the thickness of the bottom plate being equal to the thickness of the optical film.
  • the backlight module further includes a transparent double-sided tape adhered to the optical film and the bottom plate on one side and used to paste the liquid crystal screen on the other side.
  • each side surface of the transparent film and the optical film are not aligned with each other, and the outer sides of the transparent double-sided tape are respectively aligned with the corresponding outer sides of the light guide plate.
  • the reflective sheets are not abutted on the respective sides of the positioning table and are respectively aligned with the corresponding outer sides of the light guide plate.
  • the backlight module further includes a back plate
  • the back plate includes a horizontal plate portion, and two vertical plate portions respectively extending from opposite ends of the horizontal plate portion to the same side of the horizontal plate portion, and the light guide plate The opposite two sides of the light are respectively abutted against the two riser portions, and the other two sides of the light guide plate are respectively aligned with the respective side faces of the horizontal plate portion, and the strip-shaped slits are parallel to the riser portion.
  • the mount abuts against the incident surface of the light guide plate, and the light emitting element is mounted in the mounting hole in the side of the mount that abuts the incident surface.
  • the backlight module of the present invention does not need to be provided with a plastic frame and a back plate, thereby forming a backlight module without an outer frame.
  • the backlight module is smaller in size and smaller in space, which is more suitable for installation in tablet computers and mobile communication products.
  • FIG. 1 is a schematic cross-sectional view showing a conventional backlight module
  • FIG. 2 is a schematic cross-sectional view showing a backlight module according to a first embodiment of the present invention
  • Figure 3 shows a perspective view of the light guide plate and the light bar shown in Figure 2;
  • Figure 4 is a partial enlarged view of the light bar of Figure 3;
  • Figure 5 is a partial perspective view of the light guide plate and the reflection plate shown in Figure 2;
  • FIG. 6 is a perspective view showing the overall assembly of a backlight module according to a first embodiment of the present invention
  • FIG. 7 shows an exploded schematic view of a backlight module in accordance with a second embodiment of the present invention.
  • the backlight module 100 includes a light guide plate 20 , and a light bar 50 disposed on the light guide plate 20 .
  • the light bar 50 can generally be bonded to the light guide plate 20.
  • the light guide plate 20 is usually made of a transparent material having a relatively high refractive index.
  • the transparent material can be an optical grade polycarbonate or polymethyl methacrylate.
  • the refractive index of the light guide plate 20 is greater than the refractive index of the transparent substance in contact therewith.
  • the light guide plate 20 has a substantially rectangular plate-like structure.
  • One plate surface of the light guide plate 20, that is, the first surface 22 (shown in FIG. 3) is formed as an exit surface, and the other plate surface, that is, the surface opposite to the first surface 22 is a second surface 24 (as shown in FIG. 5). ).
  • the second surface 24 In addition to the second surface 24, other surfaces of the light guide plate 20, such as the respective outer side surfaces, the first surface 22, and the like, are very smooth.
  • Portions of the second surface 24 of the light guide plate 20 project outwardly to form dense reflective dots.
  • a black coating is provided on each outer side surface of the light guide plate 20. The black coating absorbs light from the outside and prevents light leakage from the outside.
  • the light guide plate 20 is provided with a strip-shaped slit 21 perpendicular to the first surface 22 and the second surface 24.
  • the strip slit 21 is disposed, for example, adjacent to an outer side surface of the light guide plate 20 and extends parallel to the outer side surface.
  • the light bar 50 includes a substantially strip-shaped bottom plate 51, and a plurality of mounts 52 spaced apart from each other fixed to the bottom plate 51. Light-emitting elements are provided on each of the mounts 52.
  • the light-emitting element can be, for example, a light-emitting diode. As shown in FIG.
  • the light bar 50 can cooperate with the light guide plate 20 such that the bottom plate 51 of the light bar 50 is adhered to the first surface 22 of the light guide plate 20, for example, to each other; at the same time, all of the light bar 50
  • the mount 52 is embedded in the strip slit 21, and the light-emitting elements in the strip 50 are each oriented toward a side wall of the strip-shaped slit 21 parallel to the direction in which it extends.
  • the side wall is formed as an incident surface of the light guide plate 20.
  • light emitted from the light-emitting element can be incident into the light guide plate 20 through the incident surface, and then emitted from the first surface 22 after being reflected one or more times.
  • a portion of the light is reflected by the light guide plate 20 to the reflective mesh point disposed on the second surface 24 of the light guide plate 20 by one or more reflections.
  • Each of the reflective dots can scatter light incident on its surface and having an incident angle greater than a critical angle. A portion of the scattered light is directed toward the first surface 22 and its angle of incidence on the first surface 22 is less than the critical angle. Thereby, the partially scattered light is emitted from the first surface 22 to the light guide plate 20.
  • the plastic frame 3 and the back plate 4 used in the prior art are omitted in the backlight module 100 according to the present invention, thereby eliminating the outer frame of the backlight module, and in addition, the volume of the backlight module is smaller. Small, manufacturing costs are reduced.
  • the bottom plate 51 is configured to completely cover the strip slots 21. Since the strip-shaped slits 21 are provided, the strength of the light guide plate 20 at the strip-shaped slits 21 is lowered, so that the strip-shaped slits 21 form a weak portion of the light guide plate 20. The bottom plate 51 is bridged to both sides of the strip-shaped slit 21, which increases the strength of the light guide plate 20 at the strip-shaped slit 21, so that the light guide plate 20 is not easily bent at the strip-shaped slit 21.
  • a plurality of mounts 52 are vertically disposed on the bottom plate 51.
  • the mounts 52 are evenly arranged along the extending direction of the bottom plate 51.
  • One surface of the mount 52 abuts against the incident surface of the light guide plate 20.
  • a mounting hole 53 is formed in a surface of each of the mounts 52 that abuts against the incident surface of the light guide plate 20, and a light-emitting element is mounted in the mounting hole 53.
  • a reflective layer is disposed on the inner wall of the mounting hole 53, and the reflective layer can reflect the light emitted from the light emitting element toward the mounting seat 52 into the light guide plate 20.
  • the mounting seat 52 forms an interference fit with the strip slots 21. In this way, the mounting seat 52 can be brought into close contact with the incident surface of the light guide plate 20 to prevent light from escaping from between the mounting seat 52 and the incident surface.
  • the backlight module 100 further includes a reflective sheet 8 bonded to the second surface 24 of the light guide plate 20.
  • the reflection sheet 8 can be made, for example, of polyethylene terephthalate.
  • the reflection sheet 8 is opaque and its surface can be reflective. Therefore, the reflection sheet 8 can reflect the light emitted from the second surface 24 to the light guide plate 20 back to the light guide plate 20.
  • the light guide plate 20 further includes a positioning table 23 extending from the second surface 24.
  • a positioning table 23 extending from the second surface 24.
  • one side surface of the reflection sheet 8 abuts against the side surface of the positioning stage 23, and the height of the positioning stage 23 is equal to the thickness of the reflection sheet 8.
  • the positioning table 23 can be used to pre-position the reflective sheet when the reflective sheet 8 is mounted.
  • the positioning table 23 and the reflection sheet 8 jointly carry the backlight module, wherein the top end of the positioning table 23 is flush with the surface of the reflection sheet 8 facing away from the second surface 24, thereby forming a flat bearing surface, so that the positioning table 23 and the reflection The force of the sheet 8 is uniform.
  • the positioning table 23 can also prevent the end portion of the reflection sheet 8 from abutting on the positioning table 23 from colliding with other components.
  • the mount 52 may be configured to abut against the reflective sheet 8 through the strip slits 21. Thus, the mount 52 also supports the reflection sheet 8 to prevent the reflection sheet 8 from warping into the strip slit 21.
  • the backlight module 100 further includes an optical film 9 affixed to the first surface 22 of the light guide plate 20, which is preferably configured to abut the side surface of the bottom plate 51.
  • the optical film 9 includes a diffusion sheet 91, a prism sheet 92, and a brightness enhancement sheet 93 which are sequentially laminated.
  • the diffusion sheet 91 can be bonded to the first surface 22.
  • the thickness of the optical film 9 can be set equal to the thickness of the bottom plate 51.
  • the diffusion sheet 91 may include a large amount of transparent particles. Thus, light refracts as it passes through the transparent particles, and the light beam scatters in all directions after passing through the transparent particles multiple times. When the light is atomized through the diffusion sheet 91, the atomized light is softer and more evenly distributed.
  • the prism sheet 92 may include, for example, a plurality of micro and parallel sharp edges disposed on a side close to the brightness enhancing sheet 93.
  • the cross section of a single sharp edge approximates an isosceles right triangle. Only the light incident on the prism sheet 92 can pass through the prism sheet 92 to enter the brightness enhancement sheet 93, and the rest of the light is reflected by the prism sheet 92 back to the diffusion sheet 91 because the refractive condition is not satisfied.
  • the diffusion sheet 91 and the reflection sheet 8 cooperate to re-orient the prism sheet 92.
  • the brightening sheet 93 may include, for example, a reflective polarizer, and a diffusion layer attached to the surface of the reflective polarizer. Incident light rays of a particular polarization direction may pass through the reflective polarizer, and incident light rays having other polarization directions will be reflected back to the prism sheet 92 to be recycled. This specific polarization direction matches the polarization direction of the lower polarizing plate of the liquid crystal panel 1. Thus, the passing rate of the outgoing light of the brightness enhancement sheet 93 through the lower polarizing plate of the liquid crystal panel 1 can be increased, thereby improving the utilization ratio of the incident light of the brightness enhancing sheet 93.
  • the diffusion layer can atomize the light to make the light softer.
  • the backlight module further includes a transparent double-sided tape 7.
  • One side of the transparent double-sided tape 7 is adhered to the brightness-increasing sheet 93 of the optical film 9 and the transparent double-sided tape 7 of the bottom plate 51, and the other side is used to attach the liquid crystal panel 1.
  • the transparent double-sided tape 7 can be in the shape of a frame.
  • the light emitted from the optical film 9 can pass through the transparent double-sided tape 7 to reach the liquid crystal panel 1.
  • the sides of the bottom plate 51 of the light bar 50 and the optical film 9 are not aligned with each other, respectively, and the outer sides of the light guide plate 20 are respectively aligned with the outer sides of the transparent double-sided tape 7.
  • the respective outer sides of the light guide plate 20 are aligned, and the respective sides of the reflective sheet 8 that are not abutting against the positioning table 23 are respectively aligned with the corresponding outer side surfaces of the light guide plate 20.
  • the four sides of the backlight module form four flat bearing surfaces, as shown in FIG.
  • the surface of the reflection sheet 8 of the backlight module described above facing away from the second surface 24 and the end surface of the positioning table 23 form a flat bearing surface.
  • the five faces of the backlight module form a flat bearing surface, which simplifies the design of the housing for mounting the backlight module, and makes the binding force applied by the housing to the backlight module evenly distributed.
  • the optical module 200 is different from the backlight module 100 of the first embodiment only in that the backlight module 200 further includes a backing plate 10. Therefore, for the sake of brevity, only the structure of the backing plate 10 and the connection relationship of the backing plate 10 with other components will be described below.
  • the backlight module 200 further includes a back sheet 10.
  • the backing plate 10 includes a transverse plate portion 11 and two riser portions 12 projecting from opposite ends of the transverse plate portion to the same side of the transverse plate portion, respectively.
  • the light guide plate 20 is mounted into a groove surrounded by the horizontal plate portion 11 and the two riser portions 12 of the back plate 10, and the strip-shaped slits 21 are disposed in parallel to the riser portion 12.
  • Two opposite outer sides of the light guide plate 20 abut against the two riser portions 12, respectively, and the other two outer side faces are flush with the two side faces of the horizontal plate portion, respectively.
  • the reflection sheet 8 is attached to the horizontal plate portion 11.
  • the outer frame is also reduced while increasing the strength of the backlight module 200. This is because the outer frame formed by the riser portion 12 is only distributed on both sides of the backlight module 200, and the other sides of the backlight module 200 do not form an outer frame. Therefore, the backlight module 200 according to the second embodiment of the present invention can reduce the area of the outer frame while improving the strength.

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

Abstract

一种背光模组（100），其包括：设置有条形切槽（21）的导光板（20），以及灯条（50），包括底板（51）以及安装在底板（51）上的多个安装座（52），各安装座（52）上分别安装有发光元件，其中，灯条（50）的底板（51）设置成与导光板（20）的第一表面（22）相配合，使得安装座（52）均容纳于条形切槽（21）内。这种背光模组（100）不需要设置胶框（3）和背板（4），从而形成了无外边框的背光模组（100）。

Description

一种背光模组
相关申请的交叉引用
本申请要求享有于2014年11月14日提交的名称为“一种背光模组”的中国专利申请CN201410650010.X的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本发明涉及一种液晶显示技术，尤其涉及一种背光模组。
背景技术
液晶面板包括背光模组以及粘贴在背光模组上的液晶屏。背光模组用作液晶面板的光源。液晶屏通过对背光模组发出的光线进行调制来显示出图形和色彩。
图1显示了一种现有的背光模组。这种背光模组包括方形的背板4、安装在背板4内且与背板4的各内侧壁贴合的胶框3、被胶框3环绕的且通过胶框3卡装在背板4内的导光板2，以及设置在导光板2一端的灯条5。灯条5上设置有发光元件(未示出)。发光元件发出的光线从导光板2的侧面入射到导光板2内。这些光线在导光板2内经过一次或多次反射后从导光板2的出射面射出。该出射面四周的胶框3和背板4既不发光也不透光，从而由胶框3和背板4形成了导光板2的出射面外缘的外边框。另外，现有的背光模组通常采用黑色双面胶6将背光模组和液晶屏1粘接在一起。黑色双面胶6会吸收光线且呈框形，这样就形成了使背光模组的透光面减小的内边框。
随着平板电脑和移动通讯产品的液晶面板向窄边框化和无边框化发展，亟需一种窄边框的或无边框的背光模组。
发明内容
本发明所要解决的技术问题是消除背光模组的外边框。
为了解决上述技术问题，本申请提供了一种背光模组，其包括：设置有条形切槽的导光板，以及灯条，包括底板以及安装在底板上的多个安装座，各安装座上分别安装有发光 元件，其中，灯条的底板设置成与导光板的第一表面相配合，使得安装座均容纳于条形切槽内。
在一个具体的实施例中，底板完全覆盖条形切槽。
在一个具体的实施例中，条形切槽平行于导光板的一个外侧面而延伸。
在一个具体的实施例中，背光模组还包括贴合在导光板的与第一表面相对的第二表面上的反射片，安装座穿过条形切槽抵接于反射片。
在一个具体的实施例中，导光板还包括从第二表面上凸出的定位台，反射片的一个侧面抵接于定位台，并且定位台的高度等于反射片的厚度。
在一个具体的实施例中，背光模组还包括贴合在导光板的第一表面上且与底板的侧面相抵接的光学膜片，底板的厚度等于光学膜片的厚度。
在一个具体的实施例中，背光模组还包括一面粘贴在光学膜片和底板上、且另一面用于粘贴液晶屏的透明双面胶。
在一个具体的实施例中，底板与光学膜片不相互抵接的各个侧面分别与导光板相应的外侧面对齐，透明双面胶的各个外侧面分别与导光板相应的外侧面对齐，反射片不抵接于定位台的各个侧面分别与导光板相应的外侧面对齐。
在一个具体的实施例中，背光模组还包括背板，背板包括横板部分以及分别从横板部分相对的两端向横板部分的同一侧伸出的两个竖板部分，导光板中的相对的两个侧面分别抵接于两个竖板部分，导光板的另外的两个侧面分别与横板部分的相应侧面对齐，并且条形切槽平行于竖板部分。
在一个具体的实施例中，安装座抵接于导光板的入射面，发光元件安装位于在安装座的抵接于入射面的侧面内的安装孔内。
与现有技术中的背光模组相比，本发明的背光模组不需要设置胶框和背板，从而形成了无外边框的背光模组。另外，由于不需要设置胶框和背板使得这种背光模组的体积更小，所占空间更小，这样更适合安装在平板电脑和移动通讯产品内。
本发明的其它特征和优点将在随后的说明书中阐述，并且，部分地从说明书中变得显而易见，或者通过实施本发明的技术方案而了解。本发明的目的和其他优点可通过在说明书、权利要求书以及附图中所特别指出的结构来实现和获得。
附图说明
附图用来提供对本申请的技术方案或现有技术的进一步理解，并且构成说明书的一部分。其中，表达本申请实施例的附图与本申请的实施例一起用于解释本申请的技术方案，但并不构成对本申请技术方案的限制。
图1显示了现有的一种背光模组的示意性剖面图；
图2显示了根据本发明的第一种实施方式的背光模组的示意性剖面图；
图3显示了如图2所示的导光板和灯条的立体示意图；
图4是图3所示灯条的局部放大示意图；
图5是如图2所示的导光板和反射板的局部立体示意图；
图6显示了根据本发明的第一种实施方式的背光模组的总装配立体示意图；
图7显示了根据本发明的第二种实施方式的背光模组的分解示意图。
具体实施方式
本申请实施例以及实施例中的各个特征，在不相冲突前提下可以相互结合，所形成的技术方案均在本发明的保护范围之内。以下将结合附图及实施例来详细说明本发明的实施方式。
图2至图6示意性地表示出了根据本发明的第一种实施方式的背光模组100的结构。在本实施例中，如图2所示，背光模组100包括导光板20，以及设置在导光板20上的灯条50。灯条50通常可以粘结到导光板20上。
导光板20通常由折射率较高的透明材料制成。该透明材料可以是光学级的聚碳酸酯或聚甲基丙烯酸甲酯。优选地，导光板20的折射率大于与其相接触的透明物质的折射率。导光板20为大致矩形的板状结构。导光板20的一个板面、即第一表面22(如图3所示)形成为出射面，另一板面、即与第一表面22相对的面为第二表面24(如图5所示)。除第二表面24外，导光板20的其它表面，例如各个外侧面、第一表面22等均非常光滑。导光板20的第二表面24上的一些部分向外凸出，从而形成密集的反光网点。优选地，在导光板20的各个外侧面设置黑色涂层。黑色涂层可以吸收从外侧面射出的光线，避免外侧面漏光。
根据本发明，导光板20设置有一个垂直于第一表面22和第二表面24的条形切槽21。条形切槽21例如设置成靠近导光板20的一个外侧面，并且平行于该外侧面而延伸。
如图3所示，灯条50包括大致条状的底板51，以及从固定在底板51上的彼此间隔开的若干安装座52。各个安装座52上均设置有发光元件。该发光元件例如可以是发光二极管。如图2所示，灯条50可与导光板20相配合，使得灯条50的底板51与导光板20的第一表面22贴合，例如相互粘结；与此同时，灯条50的所有安装座52嵌入到条形切槽21内，并且灯条50中的发光元件均朝向条形切槽21的平行于其延伸方向的一个侧壁。由 此，该侧壁形成为导光板20的入射面。
这样，发光元件发出的光线可以穿过该入射面射入导光板20内，然后经一次或多次反射后从第一表面22射出。尤其是，发光元件发出的光线穿过入射面后，其中一部光线在导光板20内部经过一次或多次反射反射到设置在导光板20的第二表面24上的反射网点。每个反射网点可以将射到其表面上的且入射角大于临界角的光线散射出去。一部分所散射的光线射向第一表面22，并且其在第一表面22上的入射角小于临界角。由此，这部分散射光线从第一表面22射出导光板20。通过这种设置，在根据本发明的背光模组100中省略了现有技术中使用的胶框3和背板4，因而消除了背光模组的外边框，另外，该背光模组的体积较小，制造成本降低。
在一个实施例中，底板51构造成完全地覆盖了条形切槽21。由于设置了条形切槽21，导光板20在条形切槽21处的强度会降低，因此条形切槽21形成了导光板20的薄弱部位。底板51跨接于条形切槽21的两侧，这样就增加了导光板20在条形切槽21处的强度，使得导光板20不易在条形切槽21处弯折。
如图4所示，若干个安装座52垂直设置在底板51上。优选地，安装座52沿底板51的延伸方向均匀排列。安装座52的一个表面抵接于导光板20的入射面。优选地，在各个安装座52中的抵接于导光板20的入射面的那个表面中形成有安装孔53，在安装孔53内安装发光元件。优选地，安装孔53的内壁上设置反射层，该反射层可以将发光元件发出的射向安装座52的光线反射到导光板20内。优选地，安装座52与条形切槽21形成过盈配合。这样可以使安装座52紧贴导光板20的入射面，避免光线从安装座52与入射面之间逸出。
如图5所示，背光模组100还包括粘接在导光板20的第二表面24上的反射片8。反射片8例如可以由聚对苯二甲酸乙二醇酯制成。反射片8不透光，且其表面可以反光。因此，反射片8可以将从第二表面24射出导光板20的光线反射回导光板20。
在一个实施例中，导光板20还包括从第二表面24上延伸出的定位台23。在这种情况下，反射片8的一个侧面抵接于定位台23的侧面，并且定位台23的高度等于反射片8的厚度。这样，定位台23可以用于在安装反射片8时对反射片进行预定位。另外，定位台23和反射片8共同承载背光模组，其中定位台23的顶端与反射片8的背离第二表面24的表面平齐，从而形成一个平整的承载面，使得定位台23和反射片8的受力均匀。定位台23还可以避免反射片8与定位台23抵接的端部与其他部件发生碚碰。
此外，安装座52可构造成穿过条形切槽21而与反射片8抵接。这样，安装座52也支撑了反射片8，避免反射片8向条形切槽21内翘曲。
在一个实施例中，背光模组100还包括粘贴在导光板20的第一表面22上的光学膜片9，其优选构造成与底板51的侧面相抵接。在一个例子中，光学膜片9包括依次层叠的扩散片91、棱镜片92和增亮片93。扩散片91可与第一表面22粘接。光学膜片9的厚度可设置成等于底板51厚度。这样，光学膜片9中的背离第一表面22的表面和灯条50的底板51中的背离第一表面22的表面平齐，从而形成一个平整的承载面，使得光学膜片9和灯条50的受力均匀。
扩散片91可包括大量透明微粒。这样，光线穿过透明微粒时会发生折射，光束多次穿过透明微粒后向各个方向散射。当光线穿过扩散片91后被雾化，雾化后的光线更柔和、分布更均匀。
棱镜片92例如可包括在靠近增亮片93的一侧设置的若干微型的且相互平行的尖棱。单个尖棱的横截面近似于等腰直角三角形。棱镜片92的入射光只有在某一角度范围之内的光才可以穿过棱镜片92进入到增亮片93，其余的光因不满足折射条件而被棱镜片92反射回扩散片91，再由扩散片91和反射片8的共同作用而重新射向棱镜片92。
增亮片93例如可包括反射型偏光片，以及附着在反射型偏光片表面的扩散层。特定偏振方向的入射光线可以通过反射型偏光片，具有其他偏振方向的入射光线将被反射回棱镜片92从而被循环利用。该特定偏振方向与液晶屏1的下偏振片的偏振方向相匹配。这样，可以提升增亮片93的出射光线通过液晶屏1的下偏振片的通过率，从而提升增亮片93的入射光的利用率。扩散层可以雾化光线，使光线更柔和。
在一个实施例中，背光模组还包括透明双面胶7。该透明双面胶7的一面粘贴在光学膜片9的增亮片93和底板51的透明双面胶7，另一面用于粘贴液晶屏1。透明双面胶7可以呈框形。这样，光学膜片9的出射光线可以穿过透明双面胶7而达到液晶屏1。通过采用透明双面胶7来代替现有技术中的黑色双面胶6，解决了由于采用黑色双面胶6而导致的黑色双面胶形成背光模组的内边框的问题。
在一个优选的实施例中，灯条50的底板51与光学膜片9不相互抵接的各个侧面分别与导光板20相应的外侧面对齐，透明双面胶7的各个外侧面分别与导光板20相应的外侧面对齐，并且反射片8不抵接于定位台23的各个侧面分别与导光板20相应的外侧面对齐。通过这种设置，背光模组的四个侧面形成四个平整的承载面，如图6所示。前面所述的背光模组的反射片8背离第二表面24的表面和定位台23的端面形成了平整的承载面。这样，背光模组的五个面均形成平整的承载面，可以简化用于安装背光模组的壳体的设计，并且使得壳体向背光模组施加的约束力分布均匀。
下面将结合图7来介绍本发明的第二种实施方式。根据本发明的第二种实施方式的背 光模组200与第一种实施方式的背光模组100的区别仅在于背光模组200还包括背板10。因此，为简洁起见，以下将仅叙述背板10的结构以及背板10与其他部件的连接关系。
如图7所示，根据本发明的第二种实施方式的背光模组200还包括背板10。该背板10包括一个横板部分11，以及分别从横板部分的相对两端向横板部分的同一侧伸出的两个竖板部分12。导光板20安装到由背板10的横板部分11和两个竖板部分12所围成的槽内，并且条形切槽21设置成平行于竖板部分12。导光板20中的两个相对的外侧面分别抵接于两个竖板部分12，另外两个外侧面则分别与横板部分的两个侧面平齐。反射片8贴合在横板部分11上。通过采用该背板10来支撑其他元件，在增加背光模组200的强度的同时也减小了外边框。这是因为由竖板部分12形成的外边框仅仅分布在背光模组200的两侧，而背光模组200的另外两侧不会形成外边框。因此，根据本发明的第二种实施方式的背光模组200能够减小外边框的面积，同时提高强度。
虽然本发明所披露的实施方式如上，但所述的内容仅为便于理解本发明技术方案而采用的实施方式，并非用以限定本发明。任何本发明所属领域内的技术人员，在不脱离本发明所揭露的精神和范围的前提下，可以在实施的形式及细节上进行任何的修改与变化，但本发明的专利保护范围，仍须以所附的权利要求书所界定的范围为准。

Claims (10)

  1. 一种背光模组，其中，包括：
    设置有条形切槽的导光板，以及
    灯条，包括底板以及安装在所述底板上的多个安装座，各安装座上分别安装有发光元件，
    其中，所述灯条的底板设置成与所述导光板的第一表面相配合，使得所述安装座均容纳于所述条形切槽内。
  2. 根据权利要求1所述的背光模组，其中，所述底板完全覆盖所述条形切槽。
  3. 根据权利要求2所述的背光模组，其中，所述条形切槽平行于所述导光板的一个外侧面而延伸。
  4. 根据权利要求3所述的背光模组，其中，所述背光模组还包括贴合在所述导光板的与所述第一表面相对的第二表面上的反射片，所述安装座穿过所述条形切槽抵接于所述反射片。
  5. 根据权利要求4所述的背光模组，其中，所述导光板还包括从所述第二表面上凸出的定位台，所述反射片的一个侧面抵接于定位台，并且所述定位台的高度等于反射片的厚度。
  6. 根据权利要求5所述的背光模组，其中，所述背光模组还包括贴合在所述导光板的第一表面上且与所述底板的侧面相抵接的光学膜片，所述底板的厚度等于所述光学膜片的厚度。
  7. 根据权利要求6所述的背光模组，其中，所述背光模组还包括一面粘贴在所述光学膜片和所述底板上、且另一面用于粘贴液晶屏的透明双面胶。
  8. 根据权利要求7所述的背光模组，其中，所述底板与所述光学膜片不相互抵接的各个侧面分别与导光板相应的外侧面对齐，所述透明双面胶的各个外侧面分别与导光板相应的外侧面对齐，所述反射片不抵接于定位台的各个侧面分别与导光板相应的外侧面对齐。
  9. 根据权利要求1所述的背光模组，其中，所述背光模组还包括背板，所述背板包括横板部分以及分别从所述横板部分相对的两端向所述横板部分的同一侧伸出的两个竖板部分，所述导光板中的相对的两个侧面分别抵接于所述两个竖板部分，所述导光板的另外的两个侧面分别与所述横板部分的相应侧面对齐，并且所述条形切槽平行于所述竖板部分。
  10. 根据权利要求1所述的背光模组，其中，所述安装座抵接于导光板的入射面，所述发光元件安装位于在所述安装座的抵接于入射面的侧面内的安装孔内。
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CN104834113B (zh) * 2015-04-29 2018-01-16 武汉华星光电技术有限公司 一种窄边框液晶显示模组
CN107505670B (zh) * 2017-09-22 2019-06-21 京东方科技集团股份有限公司 背光源以及显示装置
CN107610592A (zh) * 2017-10-24 2018-01-19 奥捷科技（厦门）有限公司 一种显示件的固定装置及显示器
CN110045546A (zh) * 2019-05-29 2019-07-23 重庆翰博光电有限公司 一种用于自动化生产的背光模组结构
NL2026289B1 (en) * 2020-08-18 2022-04-14 Microsoft Technology Licensing Llc Backlight module
CN113968067B (zh) * 2021-09-18 2024-05-10 浙江晶科能源有限公司 一种高温布垫块以及光伏组件的制造方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101231425A (zh) * 2008-02-21 2008-07-30 友达光电股份有限公司 背光模块
KR20110064743A (ko) * 2009-12-08 2011-06-15 엘지디스플레이 주식회사 백라이트 유닛 및 이를 구비한 액정표시장치
CN202182391U (zh) * 2011-08-17 2012-04-04 北京京东方光电科技有限公司 一种背光源和液晶面板
CN202209589U (zh) * 2011-08-19 2012-05-02 北京京东方光电科技有限公司 一种背光源及液晶显示器
CN203533350U (zh) * 2013-11-05 2014-04-09 京东方科技集团股份有限公司 背光模组及显示装置

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5613751A (en) * 1995-06-27 1997-03-25 Lumitex, Inc. Light emitting panel assemblies
TWM272104U (en) * 2000-05-19 2005-08-01 United Radiant Technology Corp Liquid crystal shutter display
TW200712684A (en) * 2005-09-30 2007-04-01 Innolux Display Corp Liquid crystal display module
AU2006307005B2 (en) 2005-10-26 2010-08-12 GV Lightec Co., Ltd Backlight unit capable of easily forming curved and three-dimensional shape
KR100552589B1 (ko) * 2005-10-26 2006-02-16 화우테크놀러지 주식회사 즉석맞춤이 용이한 백라이트 유니트
CN101533182A (zh) * 2008-03-12 2009-09-16 上海广电Nec液晶显示器有限公司 背光源装置
GB2464915A (en) * 2008-09-23 2010-05-05 Egush Ltd Lighting device
KR100973415B1 (ko) * 2009-01-22 2010-07-30 화우테크놀러지 주식회사 내화 평판형 엘이디 조명기구
JP5246791B2 (ja) * 2009-04-22 2013-07-24 株式会社ジャパンディスプレイウェスト バックライトユニット
JP2012018855A (ja) * 2010-07-09 2012-01-26 Hitachi Consumer Electronics Co Ltd 照明装置及びこれを備える表示装置
KR101722100B1 (ko) * 2010-09-24 2017-04-03 삼성디스플레이 주식회사 발광 모듈 및 이를 포함하는 광 공급 어셈블리
TWI553382B (zh) * 2011-06-24 2016-10-11 Ｌｇ伊諾特股份有限公司 照明系統
TWI448785B (zh) * 2011-07-19 2014-08-11 Innolux Corp 多區域動態背光模組
KR20130015789A (ko) * 2011-08-05 2013-02-14 삼성전자주식회사 액정 디스플레이 모듈
KR101291141B1 (ko) * 2011-08-25 2013-08-01 삼성전자주식회사 Ｃｏｂ 타입의 발광소자 모듈을 포함하는 백라이트 유닛
WO2014013944A1 (ja) * 2012-07-20 2014-01-23 シャープ株式会社 照明装置、表示装置、及びテレビ受信装置
TWI569073B (zh) * 2014-10-27 2017-02-01 瑞儀光電股份有限公司 背光模組及液晶顯示器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101231425A (zh) * 2008-02-21 2008-07-30 友达光电股份有限公司 背光模块
KR20110064743A (ko) * 2009-12-08 2011-06-15 엘지디스플레이 주식회사 백라이트 유닛 및 이를 구비한 액정표시장치
CN202182391U (zh) * 2011-08-17 2012-04-04 北京京东方光电科技有限公司 一种背光源和液晶面板
CN202209589U (zh) * 2011-08-19 2012-05-02 北京京东方光电科技有限公司 一种背光源及液晶显示器
CN203533350U (zh) * 2013-11-05 2014-04-09 京东方科技集团股份有限公司 背光模组及显示装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108766234A (zh) * 2018-07-10 2018-11-06 合肥惠科金扬科技有限公司 防漏光的显示设备

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