WO2012171228A1 - 背光显示模块及液晶显示器 - Google Patents

背光显示模块及液晶显示器 Download PDF

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Publication number
WO2012171228A1
WO2012171228A1 PCT/CN2011/076078 CN2011076078W WO2012171228A1 WO 2012171228 A1 WO2012171228 A1 WO 2012171228A1 CN 2011076078 W CN2011076078 W CN 2011076078W WO 2012171228 A1 WO2012171228 A1 WO 2012171228A1
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WIPO (PCT)
Prior art keywords
light
liquid crystal
display module
crystal panel
guide plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2011/076078
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English (en)
French (fr)
Inventor
张光耀
黄建发
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to US13/264,556 priority Critical patent/US20130182198A1/en
Publication of WO2012171228A1 publication Critical patent/WO2012171228A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • 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
    • 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
    • G02F1/13332—Front frames
    • 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
    • G02F1/133628—Illuminating devices with cooling 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
    • G02F2202/00—Materials and properties
    • G02F2202/28—Adhesive materials or arrangements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/18—Edge-illuminated signs
    • G09F2013/1804—Achieving homogeneous illumination

Definitions

  • the present invention relates to the field of backlight display, and in particular to a backlight display module and a liquid crystal display capable of avoiding side flares.
  • liquid crystal displays are widely used in various display fields, such as mobile phones, computer screens, etc., because of their light weight, small size and low power consumption, etc., which are favored by users, among them, the backlight display module One of the most important components for its display function.
  • the frame is made of metal, such as stainless steel, its optical reflectivity is high. If it is not handled properly, it is easy to appear a high-brightness spot on the side of the backlight display module, which seriously affects the display quality.
  • the metal frame 101 of the backlight display module 100 presses the liquid crystal panel 102 and the optical film 103 . Since the light reflectance of the metal frame 101 is high, the light emitted by the light source 105 through the light guide plate 104 is easily placed on the metal frame. Reflection occurs on the 101 to be emitted from the peripheral edge of the liquid crystal panel 102, thereby causing a high-luminance spot on the peripheral side of the backlight display module 100.
  • the present invention is implemented as follows:
  • a backlight display module includes: a light source for emitting light; a light guide plate for receiving light and emitting light from a light emitting surface of the light guide plate; and a liquid crystal panel disposed at an upper portion of the light emitting surface of the light guide plate And a metal frame disposed on the periphery of the backlight display module for fixing the liquid crystal panel at a corresponding position of the light guide plate; wherein the backlight display module further comprises a light absorbing layer between the liquid crystal panel and the metal frame; the light absorbing layer is a black buffer film adhered to an inner surface of the metal frame; blackening formed on an inner surface of the metal frame by a blackening process a layer or a black adhesive layer adhered to the periphery of the liquid crystal panel; the light absorbing layer being disposed outside an effective display area of the backlight display module.
  • the present invention also provides a backlight display module, comprising: a light source for emitting light; a light guide plate for receiving light and emitting light from a light emitting surface of the light guide plate; and a liquid crystal panel disposed on the light guide plate An upper portion of the light-emitting surface for displaying an image; and a metal frame disposed around the backlight display module for fixing the liquid crystal panel at a corresponding position of the light guide plate; wherein the backlight display
  • the module also includes a light absorbing layer disposed between the liquid crystal panel and the metal frame.
  • the present invention also provides a liquid crystal display comprising: a backlight display module comprising: a light source for emitting light; a light guide plate for receiving light and emitting light from a light emitting surface of the light guide plate; An image is displayed on an upper portion of the light-emitting surface of the light guide plate; and a metal frame is disposed around the backlight display module for fixing the liquid crystal panel at a corresponding position of the light guide plate;
  • the backlight display module further includes a light absorbing layer disposed between the liquid crystal panel and the metal frame.
  • the light absorbing layer is a black buffer film adhered to an inner surface of the metal frame.
  • the black buffer film is a black rubber film or a black polyester film.
  • the light absorbing layer is a blackening layer formed on the inner surface of the metal frame by a blackening process.
  • the light absorbing layer is a black adhesive layer adhered around the liquid crystal panel.
  • the backlight display module further includes an optical film disposed between the liquid crystal panel and the light guide plate, the optical film being fixed to the liquid crystal panel by the black adhesive layer The lower surface.
  • the black adhesive layer is a black adhesive tape.
  • the light absorbing layer is disposed outside an effective display area of the backlight display module.
  • the backlight display module and the liquid crystal display of the present invention are provided with light absorption by using the reflection of the metal frame to cause a high-brightness spot on the peripheral edge of the liquid crystal panel to affect the display quality.
  • the layer avoids high-brightness spots on the peripheral edges of the liquid crystal panel and improves the display quality of the display panel.
  • the backlight display module and the liquid crystal display of the present invention are provided with light absorption by using the reflection of the metal frame to cause a high-brightness spot on the peripheral edge of the liquid crystal panel to affect the display quality.
  • the layer avoids high-brightness spots on the peripheral edges of the liquid crystal panel and improves the display quality of the display panel.
  • FIG. 1 is a schematic structural view of a backlight display module of the prior art
  • FIG. 2 is a schematic structural view of a first preferred embodiment of a backlight display module of the present invention
  • FIG. 3 is a schematic structural view of a second preferred embodiment of a backlight display module of the present invention.
  • FIG. 4 is a schematic structural view of a third preferred embodiment of a backlight display module of the present invention.
  • FIG. 5 is a schematic structural view of a fourth preferred embodiment of the backlight display module of the present invention.
  • the backlight display module of the present invention is a laterally-lit backlight display module
  • the backlight display module 200 includes a light guide plate 204 and a light source. 205.
  • the light source 205 is, for example, a cold cathode fluorescent tube (Cold Cathode Fluorescent Lamp, CCFL), Light Emitting Diode (LED), Organic Light Emitting Diode (Organic) Light Emitting Diode, OLED), Electro-Luminescence (EL), Light Bar (Light) Bar) or a light source of any combination of the above.
  • the backlight display module 200 further includes a liquid crystal panel 202, a metal frame 201, and a light absorbing layer 206.
  • the light guide plate 204 is configured to receive light and emit light from the light emitting surface of the light guide plate 204.
  • the liquid crystal panel 202 is disposed on an upper portion of the light emitting surface of the light guide plate 204 for displaying an image; the metal frame 201 is disposed around the backlight display module 200.
  • the liquid crystal panel 202 is fixed at a corresponding position of the light guide plate; the light absorption layer 206 is disposed between the liquid crystal panel 202 and the metal frame 201, and the light for emitting the light guide plate 204 onto the metal frame 201 is completely absorbed.
  • the additional light is prevented from being emitted from the peripheral edge of the liquid crystal panel 202, causing a high-brightness spot on the peripheral side of the backlight display module 200 to affect the display quality.
  • the light absorbing layer 206 is a black buffer film adhered to the inner surface of the metal frame 201, and the black buffer film is a black rubber film or a black polymer. Ester film.
  • the backlight display module 200 is used in the embodiment, the light is emitted from the light source 205 and is incident through the light incident surface of the light guide plate 204. The light passes through the mesh point at the bottom of the light guide plate 204 to become scattered light and is emitted from the light exit surface of the light guide plate 204.
  • an image display is formed on the liquid crystal panel 202 through the optical film 203, and the present backlight display module 200 dissipates heat through the metal back plate 207 disposed at the bottom.
  • a black buffer film is adhered between the inner surface of the metal frame 201 and the liquid crystal panel 202, so that the stray light emitted by the light guide plate 204 can be effectively absorbed, and the liquid crystal panel 202 and the metal frame 201 can be well played.
  • the buffering effect is such that the metal frame 201 does not cause damage to the liquid crystal panel 202.
  • the method is simple and convenient, and the existing backlight display module 200 can be modified in real time, and only the metal frame 201 of the backlight display module 200 needs to be taken out, and the black buffer film is adhered to the corresponding position and then installed and returned. The process of removing the edge high-brightness spot.
  • the light absorbing layer 206 is disposed between the liquid crystal panel 202 and the metal frame 201, and does not affect any light or light entering the light guide plate 204, and only removes excess stray light around the display panel.
  • the light absorbing layer 306 is a blackening layer formed on the inner surface of the metal bezel 301 by a blackening process.
  • the light is emitted from the light source 305 and is incident through the light incident surface of the light guide plate 304.
  • the light passes through the mesh point at the bottom of the light guide plate 304 to become scattered light and is emitted from the light exit surface of the light guide plate 304.
  • an image display is formed on the liquid crystal panel 302 through the optical film 303, and the present backlight display module 300 dissipates heat through the metal back plate 307 disposed at the bottom.
  • the inner surface of the metal frame 301 is blackened, so that the stray light emitted by the light guide plate 304 can be effectively absorbed, and the structure of the entire backlight display module 300 is simple, and the light guide plate 304 can be emitted without adding any other structure.
  • the light on the metal frame 301 is completely absorbed, and this extra light is prevented from being emitted from the peripheral edges of the liquid crystal panel 302 to affect the display quality.
  • the light absorbing layer 306 is disposed between the liquid crystal panel 302 and the metal frame 301, and does not affect any light or light entering the light guide plate 304, and only removes excess stray light around the display panel.
  • the light absorbing layer 406 is a black adhesive layer adhered to the periphery of the liquid crystal panel 402.
  • the black adhesive layer is a black adhesive tape.
  • a black adhesive layer is adhered around the liquid crystal panel 402, and the stray light emitted by the light guide plate 404 can also be effectively absorbed.
  • the black adhesive layer is disposed around the liquid crystal panel 404, and the liquid crystal panel 402 and the metal frame 401 can also be disposed.
  • the buffering effect is good, so that the metal frame 401 does not cause damage to the liquid crystal panel 402.
  • the method is simple and convenient, and the existing backlight display module 400 can be modified in real time, and only the metal frame 401 of the backlight display module 400 needs to be taken out, and a black adhesive layer is adhered to the corresponding position of the liquid crystal panel 402.
  • the metal bezel 401 is installed back to realize the process of removing the edge high-brightness spot.
  • the light absorbing layer 406 is disposed between the liquid crystal panel 402 and the metal frame 401, and does not affect any light or light entering the light guide plate 404, and only removes excess stray light around the display panel.
  • the optical film 503 is fixed to the lower surface of the liquid crystal panel 502 by a black adhesive layer.
  • the light is emitted from the light source 505, and is incident on the light incident surface of the light guide plate 504.
  • the light passes through the mesh point at the bottom of the light guide plate 504, and the light is emitted from the light exit surface of the light guide plate 504.
  • an image display is formed on the liquid crystal panel 502 through the optical film 503, and the present backlight display module 500 dissipates heat through the metal back plate 507 disposed at the bottom.
  • the optical film 503 is fixed to the lower surface of the liquid crystal panel 502 by a black adhesive layer, and while effectively absorbing the stray light emitted from the light guide plate 504, the periphery of the optical film 503 and the liquid crystal panel 502 can be used by using a black adhesive layer.
  • the surrounding film is wrapped to achieve the fixation between the optical film 503 and the liquid crystal panel 502, so that the optical film 503 does not slide relative to the liquid crystal panel 502, and the display quality of the backlight display module 500 is ensured.
  • the method is simple and convenient, and the existing backlight display module 500 can be modified in real time, and only the metal frame 501 of the backlight display module 500 needs to be taken out, and the black glue is wrapped at the corresponding positions of the liquid crystal panel 502 and the optical film 503.
  • the layer then reinstalls the metal frame 501 to achieve the process of removing the edge high-brightness spot.
  • the light absorbing layer 506 is disposed between the liquid crystal panel 502 and the metal frame 501, and does not affect any light or light entering the light guide plate 504, and only removes excess stray light around the display panel.
  • the light absorbing layer is disposed outside an effective display area of the backlight display module.
  • the display area of the backlight display module is divided into an effective display area and a visible area, and the effective display area is the maximum display area of the backlight display module, and the visible area is the actual display area of the backlight display module, and the manufacturer can actually manufacture the product according to Different visible areas are required, but no larger than the effective display area.
  • the light-absorbing layer is disposed outside the effective display area of the backlight display module, so that the backlight display module is in progress. In the next step of design, no matter how large the design of the visible area is, the light absorbing layer will not affect the visible area, and the effect of removing the high-brightness spot on the edge of the display panel can be achieved well.
  • the invention also relates to a liquid crystal display comprising a backlight display module, comprising: a light source for emitting light; a light guide plate for receiving light and emitting light from a light emitting surface of the light guide plate; An upper portion of the light-emitting surface of the light guide plate for displaying an image; and a metal frame disposed around the backlight display module for fixing the liquid crystal panel at a corresponding position of the light guide plate;
  • the backlight display module further includes a light absorbing layer disposed between the liquid crystal panel and the metal frame.
  • the light absorbing layer is a black buffer film adhered to an inner surface of the metal frame, a blackening layer formed on an inner surface of the metal frame by a blackening treatment, or a black adhesive layer adhered around the liquid crystal panel .
  • the beneficial effects and specific embodiments of the liquid crystal display of the present invention are the same as or similar to the specific embodiment of the backlight display module described above. For details, refer to the specific embodiment of the backlight display module described above.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal (AREA)

Abstract

一种背光显示模块（200）包括：光源（205）：用于发射光线；导光板（204）：用于接收光线并将光线从所述导光板（204）的出光面发射出去；液晶面板（202）：设置在所述导光板（204）的出光面的上部，用于显示图像；以及金属边框（201）：设置在所述背光显示模块（200）的四周，用于将所述液晶面板（202）固定在所述导光板（204）的相应的位置上；吸光层（206）：设置在所述液晶面板(202)与所述金属边框（201）之间。一种液晶显示器也被提及。通过在该背光显示模块（200）及液晶显示器内设置吸光层（206），避免在液晶面板（202）的四周边缘出现高亮度光斑。

Description

背光显示模块及液晶显示器 技术领域
本发明涉及背光显示领域，特别是涉及一种可避免侧面光斑的背光显示模块及液晶显示器。
背景技术
随着技术的发展，液晶显示器被大量的使用在各个显示领域，例如手机、电脑屏幕等，由于其重量轻、体积小以及功耗低等种种优良特性收到使用者的喜爱，其中背光显示模块为其实现显示功能的最为重要的部件之一。
在一体机的背光显示模块中，由于边框为金属制成，如不锈钢等，其光学反射率高，如处理不当，容易在背光显示模块的四周侧边出现高亮度的光斑，严重影响显示品质。如图1所示，背光显示模块100的金属边框101紧压液晶面板102以及光学薄膜103，由于金属边框101的光反射率较高，因此光源105发射经导光板104射出的光线容易在金属边框101上发生反射而从液晶面板102的四周边缘射出，从而引起背光显示模块100的四周侧边出现高亮度的光斑。
故，有必要提供一种背光显示模块及液晶显示器，以解决现有技术所存在的问题。
 技术问题
本发明的目的在于提供一种背光显示模块及液晶显示器，以解决现有背光显示模块及液晶显示器使用时由于金属边框的反射导致液晶面板的四周边缘容易出现高亮度光斑从而影响显示品质的问题。
 技术解决方案
本发明是这样实现的：
一种背光显示模块，包括：光源：用于发射光线；导光板：用于接收光线并将光线从所述导光板的出光面发射出去；液晶面板：设置在所述导光板的出光面的上部，用于显示图像；以及金属边框：设置在所述背光显示模块的四周，用于将所述液晶面板固定在所述导光板的相应的位置上；其中，所述背光显示模块还包括设置在所述液晶面板与所述金属边框之间的吸光层；所述吸光层为粘附在所述金属边框内表面的黑色缓冲薄膜；通过黑化处理在所述金属边框的内表面形成的黑化层或粘附在所述液晶面板四周的黑色粘附层；所述吸光层设置在所述背光显示模块的有效显示区域外。
本发明还提供了一种背光显示模块，包括：光源：用于发射光线；导光板：用于接收光线并将光线从所述导光板的出光面发射出去；液晶面板：设置在所述导光板的出光面的上部，用于显示图像；以及金属边框：设置在所述背光显示模块的四周，用于将所述液晶面板固定在所述导光板的相应的位置上；其中，所述背光显示模块还包括设置在所述液晶面板与所述金属边框之间的吸光层。
本发明还提供了一种液晶显示器，包括：背光显示模块，包括：光源：用于发射光线；导光板：用于接收光线并将光线从所述导光板的出光面发射出去；液晶面板：设置在所述导光板的出光面的上部，用于显示图像；以及金属边框：设置在所述背光显示模块的四周，用于将所述液晶面板固定在所述导光板的相应的位置上；其中，所述背光显示模块还包括设置在所述液晶面板与所述金属边框之间的吸光层。
在本发明的一实施例中，所述吸光层为粘附在所述金属边框内表面的黑色缓冲薄膜。
在本发明的一实施例中，所述黑色缓冲薄膜为黑色橡胶薄膜或黑色聚酯薄膜。
在本发明的一实施例中，所述吸光层为通过黑化处理在所述金属边框的内表面形成的黑化层。
在本发明的一实施例中，所述吸光层为粘附在所述液晶面板四周的黑色粘附层。
在本发明的一实施例中，所述背光显示模块还包括设置在所述液晶面板和所述导光板之间的光学薄膜，所述光学薄膜通过所述黑色粘附层固定在所述液晶面板的下表面。
在本发明的一实施例中，所述黑色粘附层为黑色胶带。
在本发明的一实施例中，所述吸光层设置在所述背光显示模块的有效显示区域外。
相较于现有的背光显示模块及液晶显示器具有使用时由于金属边框的反射导致液晶面板的四周边缘容易出现高亮度光斑从而影响显示品质的问题，本发明的背光显示模块及液晶显示器通过设置吸光层避免在液晶面板的四周边缘出现高亮度光斑，提高显示面板的显示品质。
 有益效果
相较于现有的背光显示模块及液晶显示器具有使用时由于金属边框的反射导致液晶面板的四周边缘容易出现高亮度光斑从而影响显示品质的问题，本发明的背光显示模块及液晶显示器通过设置吸光层避免在液晶面板的四周边缘出现高亮度光斑，提高显示面板的显示品质。
 附图说明
图1为现有技术的背光显示模块的结构示意图；；
图2为本发明的背光显示模块的第一优选实施例的结构示意图；
图3为本发明的背光显示模块的第二优选实施例的结构示意图；
图4为本发明的背光显示模块的第三优选实施例的结构示意图；
图5为本发明的背光显示模块的第四优选实施例的结构示意图。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图式，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，例如「上」、「下」、「前」、「后」、「左」、「右」、「内」、「外」、「侧面」等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。
在图中，结构相似的单元是以相同标号表示。
在图2所示的本发明的背光显示模块的第一优选实施例的结构示意图中，本发明的背光显示模块为侧向式入光的背光显示模块，背光显示模块200包括导光板204及光源205。光源205为例如冷阴极荧光灯管（Cold Cathode Fluorescent Lamp，CCFL）、发光二极管(Light Emitting Diode，LED)、有机发光二极管(Organic Light Emitting Diode，OLED)、电激发光组件(Electro-Luminescence，EL)、发光灯条(Light Bar)或上述的任意组合的光源。背光显示模块200还包括液晶面板202、金属边框201以及吸光层206。导光板204用于接收光线并将光线从导光板204的出光面发射出去；液晶面板202设置在导光板204的出光面的上部，用于显示图像；金属边框201设置在背光显示模块200的四周，用于将液晶面板202固定在所述导光板的相应的位置上；吸光层206设置在液晶面板202与金属边框201之间，用于将导光板204射出到金属边框201上的光全部吸收，避免这些额外的光从液晶面板202的四周边缘射出，引起背光显示模块200的四周侧边出现高亮度的光斑从而影响显示品质。
如图2所示，在本发明的背光显示模块的第一优选实施例中，吸光层206为粘附在金属边框201内表面的黑色缓冲薄膜，所述黑色缓冲薄膜为黑色橡胶薄膜或黑色聚酯薄膜。本实施例中的背光显示模块200使用时，光线从光源205射出，经导光板204的入光面入射，光线通过设置导光板204的底部的网点变为散射光从导光板204的出光面出射，最后通过光学薄膜203在液晶面板202上形成图像显示，并且本背光显示模块200通过设置在底部的金属背板207进行散热。
在金属边框201的内表面和液晶面板202之间粘附黑色缓冲薄膜，这样既可以有效的吸收由导光板204射出的杂散光，又可以在液晶面板202和金属边框201之间起到很好的缓冲作用，使得金属边框201不会对液晶面板202造成损伤。并且采用该方法简单、方便，对现有的背光显示模块200可以即时进行改造，只需要将背光显示模块200的金属边框201取出，在相应的位置上粘附上黑色缓冲薄膜再安装回去即实现了去除边缘高亮度光斑的处理。同时吸光层206设置在液晶面板202和金属边框201之间，并不会对导光板204的出光或入光造成任何影响，仅仅是把显示面板四周多余的杂散光去除。
如图3所示，在本发明的背光显示模块的第二优选实施例中，吸光层306为通过黑化处理在金属边框301的内表面形成的黑化层。本实施例中的背光显示模块300使用时，光线从光源305射出，经导光板304的入光面入射，光线通过设置导光板304的底部的网点变为散射光从导光板304的出光面出射，最后通过光学薄膜303在液晶面板302上形成图像显示，并且本背光显示模块300通过设置在底部的金属背板307进行散热。
对金属边框301的内表面进行黑化处理，这样可以有效的吸收由导光板304射出的杂散光，并且整个背光显示模块300的结构简单，不需要增加任何其他结构即可以实现将导光板304射出到金属边框301上的光全部吸收，避免这些额外的光从液晶面板302的四周边缘射出而影响显示品质。同时吸光层306设置在液晶面板302和金属边框301之间，并不会对导光板304的出光或入光造成任何影响，仅仅是把显示面板四周多余的杂散光去除。
如图4所示，在本发明的背光显示模块的第三优选实施例中，吸光层406为粘附在液晶面板402四周的黑色粘附层。所述黑色粘附层为黑色胶带。本实施例中的背光显示模块400使用时，光线从光源405射出，经导光板404的入光面入射，光线通过设置导光板404的底部的网点变为散射光从导光板404的出光面出射，最后通过光学薄膜403在液晶面板402上形成图像显示，并且本背光显示模块400通过设置在底部的金属背板407进行散热。
在液晶面板402四周粘附黑色粘附层，同样可以有效的吸收由导光板404射出的杂散光，同时将黑色粘附层设置在液晶面板404的四周同样可以在液晶面板402和金属边框401之间起到很好的缓冲作用，使得金属边框401不会对液晶面板402造成损伤。并且采用该方法简单、方便，对现有的背光显示模块400可以即时进行改造，只需要将背光显示模块400的金属边框401取出，在液晶面板402的相应位置上粘附黑色粘附层再将金属边框401安装回去即实现了去除边缘高亮度光斑的处理。同时吸光层406设置在液晶面板402和金属边框401之间，并不会对导光板404的出光或入光造成任何影响，仅仅是把显示面板四周多余的杂散光去除。
如图5所示，在本发明的背光显示模块的第四优选实施例中，光学薄膜503通过黑色粘附层固定在液晶面板502的下表面。本实施例中的背光显示模块500使用时，光线从光源505射出，经导光板504的入光面入射，光线通过设置导光板504的底部的网点变为散射光从导光板504的出光面出射，最后通过光学薄膜503在液晶面板502上形成图像显示，并且本背光显示模块500通过设置在底部的金属背板507进行散热。
通过黑色粘附层将光学薄膜503固定在液晶面板502的下表面，在有效的吸收导光板504射出的杂散光的同时，可以通过使用黑色粘附层将光学薄膜503的四周和液晶面板502的四周包裹起来以实现光学薄膜503和液晶面板502之间的固定，使得光学薄膜503不会和液晶面板502之间产生相对滑动，保证了背光显示模块500的显示品质。并且采用该方法简单、方便，对现有的背光显示模块500可以即时进行改造，只需要将背光显示模块500的金属边框501取出，在液晶面板502和光学薄膜503的相应位置上包裹黑色粘附层再将金属边框501安装回去即实现了去除边缘高亮度光斑的处理。同时吸光层506设置在液晶面板502和金属边框501之间，并不会对导光板504的出光或入光造成任何影响，仅仅是把显示面板四周多余的杂散光去除。
作为本发明的背光显示模块的优选实施例，所述吸光层设置在所述背光显示模块的有效显示区域外。背光显示模块的显示区域分为有效显示区域和可视区域，有效显示区域为背光显示模块的最大显示区域，而可视区域为背光显示模块的实际显示区域，制造商在实际制作产品时可以根据需要采用不同的可视区域，但是不会大于有效显示区域。为了使得吸光层不会影响到背光显示模块的显示效果和可以满足各种制作商的制作需要，在设计时，事先将吸光层设置在背光显示模块的有效显示区域外，使得背光显示模块在进行下一步设计时，无论可视区域设计的范围有多大，吸光层都不会对可视区域造成影响，同时可以很好的实现去除显示面板边缘高亮度光斑的效果。
本发明还涉及一种液晶显示器，包括背光显示模块，包括：光源：用于发射光线；导光板：用于接收光线并将光线从所述导光板的出光面发射出去；液晶面板：设置在所述导光板的出光面的上部，用于显示图像；以及金属边框：设置在所述背光显示模块的四周，用于将所述液晶面板固定在所述导光板的相应的位置上；其中所述背光显示模块还包括设置在所述液晶面板与所述金属边框之间的吸光层。所述吸光层为粘附在所述金属边框内表面的黑色缓冲薄膜、通过黑化处理在所述金属边框的内表面形成的黑化层或粘附在所述液晶面板四周的黑色粘附层。本发明的液晶显示器的有益效果和具体实施方式与上述的背光显示模块的具体实施例相同或相似，具体请参见上述的背光显示模块的具体实施例。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。
 本发明的实施方式
工业实用性
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Claims (15)

  1. 一种背光显示模块，包括：
    光源：用于发射光线；
    导光板：用于接收光线并将光线从所述导光板的出光面发射出去；
    液晶面板：设置在所述导光板的出光面的上部，用于显示图像；以及
    金属边框：设置在所述背光显示模块的四周，用于将所述液晶面板固定在所述导光板的相应的位置上；
    其特征在于，
    所述背光显示模块还包括设置在所述液晶面板与所述金属边框之间的吸光层；
    所述吸光层为粘附在所述金属边框内表面的黑色缓冲薄膜；通过黑化处理在所述金属边框的内表面形成的黑化层或粘附在所述液晶面板四周的黑色粘附层；
    所述吸光层设置在所述背光显示模块的有效显示区域外。
  2. 一种背光显示模块，包括：
    光源：用于发射光线；
    导光板：用于接收光线并将光线从所述导光板的出光面发射出去；
    液晶面板：设置在所述导光板的出光面的上部，用于显示图像；以及
    金属边框：设置在所述背光显示模块的四周，用于将所述液晶面板固定在所述导光板的相应的位置上；
    其特征在于，
    所述背光显示模块还包括设置在所述液晶面板与所述金属边框之间的吸光层。
  3. 根据权利要求2所述的背光显示模块，其特征在于，所述吸光层为粘附在所述金属边框内表面的黑色缓冲薄膜。
  4. 根据权利要求3所述的背光显示模块，其特征在于，所述黑色缓冲薄膜为黑色橡胶薄膜或黑色聚酯薄膜。
  5. 根据权利要求2所述的背光显示模块，其特征在于，所述吸光层为通过黑化处理在所述金属边框的内表面形成的黑化层。
  6. 根据权利要求2所述的背光显示模块，其特征在于，所述吸光层为粘附在所述液晶面板四周的黑色粘附层。
  7. 根据权利要求6所述的背光显示模块，其特征在于，所述背光显示模块还包括设置在所述液晶面板和所述导光板之间的光学薄膜，所述光学薄膜通过所述黑色粘附层固定在所述液晶面板的下表面。
  8. 根据权利要求7所述的背光显示模块，其特征在于，所述黑色粘附层为黑色胶带。
  9. 根据权利要求2所述的背光显示模块，其特征在于，所述吸光层设置在所述背光显示模块的有效显示区域外。
  10. 一种液晶显示器，包括：
    背光显示模块，包括：
    光源：用于发射光线；
    导光板：用于接收光线并将光线从所述导光板的出光面发射出去；
    液晶面板：设置在所述导光板的出光面的上部，用于显示图像；以及
    金属边框：设置在所述背光显示模块的四周，用于将所述液晶面板固定在所述导光板的相应的位置上；
    其特征在于，
    所述背光显示模块还包括设置在所述液晶面板与所述金属边框之间的吸光层。
  11. 根据权利要求10所述的液晶显示器，其特征在于，所述吸光层为粘附在所述金属边框内表面的黑色缓冲薄膜。
  12. 根据权利要求11所述的液晶显示器，其特征在于，所述黑色缓冲薄膜为黑色橡胶薄膜或黑色聚酯薄膜。
  13. 根据权利要求10所述的液晶显示器，其特征在于，所述吸光层为通过黑化处理在所述金属边框的内表面形成的黑化层。
  14. 根据权利要求10所述的液晶显示器，其特征在于，所述吸光层为粘附在所述液晶面板四周的黑色粘附层。
  15. 根据权利要求14所述的液晶显示器，其特征在于，所述背光显示模块还包括设置在所述液晶面板和所述导光板之间的光学薄膜，所述光学薄膜通过所述黑色粘附层固定在所述液晶面板的下表面；所述黑色粘附层为黑色胶带。
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