WO2017012450A1 - 侧入式背光模组以及显示装置 - Google Patents

侧入式背光模组以及显示装置 Download PDF

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Publication number
WO2017012450A1
WO2017012450A1 PCT/CN2016/087011 CN2016087011W WO2017012450A1 WO 2017012450 A1 WO2017012450 A1 WO 2017012450A1 CN 2016087011 W CN2016087011 W CN 2016087011W WO 2017012450 A1 WO2017012450 A1 WO 2017012450A1
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Prior art keywords
light
layer
film layer
backlight module
fluorescent film
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PCT/CN2016/087011
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English (en)
French (fr)
Inventor
贾智帅
张金南
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乐视控股（北京）有限公司
乐视致新电子科技（天津）有限公司
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Application filed by 乐视控股（北京）有限公司, 乐视致新电子科技（天津）有限公司 filed Critical 乐视控股（北京）有限公司
Priority to US15/245,050 priority Critical patent/US20170023727A1/en
Publication of WO2017012450A1 publication Critical patent/WO2017012450A1/zh

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    • 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
    • G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
    • G02B6/0061—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to provide homogeneous light output intensity
    • 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
    • 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
    • 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
    • G02B6/0026—Wavelength selective element, sheet or layer, e.g. filter or grating
    • 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
    • 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

Definitions

  • Embodiments of the present invention relate to the field of display technologies, and in particular, to a side-lit backlight module and a display device.
  • the liquid crystal display is a passive light emitting device, so it is necessary to design a special structure to provide a light source
  • the backlight module is a device for providing a light source for the liquid crystal display device.
  • the working mode of the backlight module is to convert the incident line source or the point source into a uniformly emitted surface source.
  • the backlight module can be divided into a side-in backlight module and a direct-lit backlight module according to different positions of the light source. .
  • Displays such as televisions and high-brightness monitors generally require thin, light, high brightness, wide viewing angle, and high light utilization.
  • a direct-lit backlight module is generally used, and the direct-type structure does not require a light guide plate, mainly relying on The effect of the reflective box is to mix the light and evenly out.
  • the side-in type structure is generally applicable to small and medium-sized backlight modules, and is mainly applied to mobile phones, notebook computers, car panels, monitors, etc., and has the characteristics of lightness and thinness, but the light utilization rate is not high.
  • a backlight module includes a light source, a reflective layer, a light guide plate, a diffusion film, a prism sheet, a brightness enhancement film, and the like.
  • the light source is incident into the light guide plate from the side, and the light is uniformly emitted from the front surface by the action of the light guide plate, and the light is uniformly controlled to emit within a certain angle of view by the action of the prism sheet and the diffusion film.
  • the function of the light guide plate is to change the direction of light incident from the side of the light source into a uniform surface light source that is emitted from the front side. After the light enters the light guide plate, total reflection may occur and the light may not be emitted from the light guide plate.
  • the lower surface of the light guide plate is provided with a microstructure, and the total reflection condition of the light is destroyed by the scattering action of the microstructure to make the light uniform.
  • the function of the reflective layer is to recycle the light that is transmitted from the lower surface of the light guide plate to improve the utilization of light.
  • the function of the diffusion film is to atomize the light emitted from the light guide plate to minimize the difference between the light and the light emitted by the light, and further improve the uniformity of the light.
  • the prism sheet re-converges the scattered back light to increase the brightness of the light.
  • the LEDs are linearly arranged on the LED strip board, and there is a certain gap between the two LED lamps.
  • the LED is not a uniform light-emitting device, and it is within a certain light-emitting angle (about ⁇ 50°). The light intensity is strongest, while the light intensity in the remaining light exit angles is weak. Combining the above two reasons, the composite brightness between the two LEDs is lower than the brightness within the 0° exit angle, resulting in uneven brightness and darkness.
  • the embodiment of the invention provides a side-entry backlight module and a display device.
  • a side-lit backlight module includes: a light guide plate, a plurality of light sources, and a dark area compensation unit disposed between two adjacent light sources; wherein the light guide plate is used for each The light incident from the side of the light source is uniformly emitted from the front side, and the dark area compensation unit is configured to provide illumination compensation for the dark area between the adjacent two light sources.
  • the edge-lit backlight module further includes a light bar, and the plurality of light sources are disposed on the light bar.
  • the light bar is disposed in a first direction of a side of the light guide plate.
  • the dark area compensation unit comprises a dark area compensation light source, and the dark area compensation light source is disposed in a second direction of the side of the light guide plate.
  • the dark area compensation unit further includes a light source compensation film layer.
  • the light source compensation film layer is configured to perform light guiding processing on the light emitted by the dark area compensation light source to provide illumination compensation to a dark area between adjacent two light sources.
  • the light source compensation film layer includes a first fluorescent film layer and a second fluorescent film layer
  • the dark area compensation unit is configured to pass the first fluorescent film layer and the second A fluorescent film layer is used to process the light emitted by the dark region compensation light source to provide illumination compensation to a dark region between adjacent two light sources.
  • the first fluorescent film layer is located under the second fluorescent film layer, the first fluorescent film layer is provided with a slit, and the slit is used for emitting a dark region compensation light source.
  • the light is directed to the second fluorescent film layer, and the second fluorescent film layer is used to process the received light to obtain white light.
  • the first fluorescent film layer comprises a first substrate, a light quencher layer, and the light quencher layer, for transmitting light other than passing through the slit Perform absorption treatment.
  • the second fluorescent film layer includes a first phosphor layer and a second phosphor layer, and the second fluorescent film layer is configured to pass the first phosphor layer and the The second phosphor layer processes the light transmitted through the slit to generate white light.
  • the second fluorescent film layer further includes a second substrate, a third substrate, and a fourth substrate, wherein the first phosphor layer is disposed on the second substrate and the third substrate The second phosphor layer is disposed between the third substrate and the fourth substrate.
  • a dark area compensation unit is disposed between two adjacent light sources, and each light source is incident into the light guide plate from a side surface, and the light is evenly emitted from the front surface of the light guide plate by the action of the light guide plate.
  • the dark area compensation unit is configured to provide illumination compensation for the dark areas between two adjacent light sources, thereby providing an edge-in backlight module that effectively solves the dark area effect, thereby avoiding the above-mentioned prior art solution to darkening. Defects of the zone effect.
  • FIG. 1 is a schematic plan view showing a planar structure of a side-lit backlight module according to the present invention
  • FIG. 2 is a schematic structural view of a side-lit backlight module according to an embodiment of the present invention.
  • a dark area compensation unit is disposed between two adjacent light sources, and each light source is incident into the light guide plate from a side surface, and the light is evenly emitted from the front surface of the light guide plate by the action of the light guide plate.
  • the dark area compensation unit is configured to provide illumination compensation for the dark areas between two adjacent light sources, thereby providing an edge-in backlight module that effectively solves the dark area effect, thereby avoiding the above-mentioned prior art solution to darkening. Defects of the zone effect.
  • the light guide plate 101 is made of an optical grade acrylic/PC (Polycarbonate) plate, and then is made of a high-tech material having extremely high reflectivity and no light absorption, and is in the optical grade of acrylic.
  • the bottom surface of the sheet is printed with a light guide point using UV (ultraviolet) screen printing technology.
  • the optical grade acrylic sheet is used to absorb the light emitted from the lamp on the surface of the optical grade acrylic sheet.
  • the reflected light will diffuse to various angles, and then the reflection condition is broken out from the front surface of the light guide plate 101.
  • the light can be uniformly emitted from the front surface of the light guide plate 101 by various light-tight and different light guiding points.
  • the light guide plate 101 is rectangular in view of the light incident side.
  • Wedge plate Also known as a sloping plate, it is thin and wedge-shaped (triangular) from the side of the light entrance side.
  • Non-printing type The dot is directly formed on the reflecting surface when the light guiding plate 101 is formed. It is divided into chemical etching (Etching), precision mechanical characterization (V-cut), photolithography (Stamper), and internal diffusion.
  • the embodiment of the present invention may also use a scene that compensates for a specific color of light, such as compensating for red light, or compensating for yellow, green, blue, and violet light.
  • a specific color of light such as compensating for red light, or compensating for yellow, green, blue, and violet light.
  • FIG. 2 is a schematic structural diagram of a side-lit backlight module according to another embodiment of the present invention.
  • the side-lit backlight module includes: a light guide plate 101, a plurality of light sources 102, and two adjacent light sources.
  • a dark area compensation unit 103 and a light bar 104 are disposed between, and the plurality of light sources 102 are disposed in the On the light bar 104, the light source may be a line light source or a point light source.
  • the light bar 104 is disposed in a first direction of a side of the light guide plate 101.
  • the dark area compensation unit 103 includes a dark area compensation light source 113, and the dark area compensation light source 113 is disposed on the side of the light guide plate 101.
  • the second direction is perpendicular to the first direction, such as the first direction being a horizontal direction and the second direction being a vertical direction. It should be noted that, in another embodiment, the first direction may also be a vertical direction, and the second direction is a horizontal direction.
  • the dark area compensation unit 103 further includes a light source compensation film layer 123 for performing light guiding processing on the light emitted by the dark area compensation light source 113 to be adjacent between the adjacent two light sources. Dark areas provide illumination compensation.
  • the light source compensation film layer 123 includes a first fluorescent film layer 1231 and a second fluorescent film layer 1232, and the dark region compensation light source 113 can be passed through the first fluorescent film layer 1231 and the second fluorescent film layer 1232. The emitted light is co-processed to provide illumination compensation to dark areas between adjacent two sources.
  • the first fluorescent film layer 1231 is located under the second fluorescent film layer 1232, and the first fluorescent film layer 1231 is provided with a slit D, which compensates for the light emitted by the light source 113 only
  • the second fluorescent film layer 1232 is configured to process the received light to obtain white light through the slit D, thereby forming a dark area between two adjacent light sources. Compensated light.
  • the size and shape of the slit D are formed with reference to the shape and size of the dark region.
  • the first fluorescent film layer 1231 includes a first substrate 12311, a photoquenching layer 12312, and the slit D is cut off the first substrate 12311 and the photoquenching layer.
  • the agent layer 12312 is for performing absorption processing on the light transmitted except through the slit D, that is, partially shielded, so that the light of the safety compensation light source is transmitted only through the slit D to the second fluorescent film layer 1232.
  • the shape of the first substrate 12311 and the photoquenching layer 12312 are cut off corresponding to the shape of the slit D, and the corresponding brightness region, such as the slit D, may be a triangle, or may be a circle or other shape.
  • the second fluorescent film layer 1232 includes a first phosphor layer 12321 and a second phosphor layer 12322, and the first phosphor layer 12321 and the second phosphor layer 12322 performs synergistic processing on the light transmitted through the slit D to generate white light.
  • the second fluorescent film layer 1232 may further include a second substrate 12323, a third substrate 12324, and a fourth substrate 12325.
  • the first phosphor layer 12321 is disposed on the second substrate 12323.
  • the second phosphor layer 12322 is disposed between the third substrate 12324 and the fourth substrate 12325.
  • the second substrate 12323 is bonded to the first substrate 12311 by an adhesive layer 12313, thereby integrally combining the first fluorescent film layer 1231 and the second fluorescent film layer 1232.
  • the material of the first substrate 12311, the second substrate 12323, the third substrate 12324, and the fourth substrate 12325 may be a PET or a PC substrate.
  • the photoquenching layer 12312 is an ultraviolet quencher layer
  • the first phosphor layer 12321 is a blue phosphor layer for generating blue light
  • the second phosphor layer 12322 is a yellow phosphor layer for generating yellow light, and is located directly above the slit D on the second phosphor layer 12322, and the yellow light is mixed with the blue light to generate the white light to form a light-emitting region. Other locations are dull areas.
  • the dark area compensation light source 113 may be an ultraviolet light source, the light quencher layer is an ultraviolet light quencher layer, and the first phosphor layer 12321 is a blue phosphor. a layer for generating blue light; but the second phosphor layer 12322 is a red and green mixed phosphor layer to respectively generate red light and green light, and is located on the second phosphor layer 12322 directly above the slit D.
  • the blue light is mixed with the red light and the green light to generate the white light to form a light-emitting area, and the other positions are light-free areas.
  • FIG. 4 is a schematic diagram of a manufacturing process for forming a dark region compensation unit 103 according to Embodiment 2 of the present invention; as shown in FIG. 4, it includes:
  • the ultraviolet light quencher layer may be formed on the first substrate by a technique such as coating, spraying, or the like; the adhesive layer may be formed on the outer photo-quenching agent layer by a coating, lamination, or the like technique.
  • the first substrate and the photoquenching agent may be cut off by a technique such as die cutting.
  • a base material corresponding to the upper and lower layers of the layer and a quencher form a slit.
  • a blue phosphor layer may be formed on the second substrate by a technique such as coating, spraying, or the like; a third substrate may be formed on the blue phosphor layer by a bonding, casting, or the like; A technique such as spraying forms a yellow phosphor layer on the third substrate; a fourth substrate can be formed on the yellow phosphor layer by a process such as lamination, casting, and the like.
  • a display device includes the side-entry backlight module described in any of the above embodiments.

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Abstract

一种侧入式背光模组，包括：导光板（101），若干个光源（102），相邻两个光源之间设置有暗区补偿单元（103）。每个光源从侧面射入导光板内，通过导光板的作用使光线均匀的从导光板的正面出射，暗区补偿单元用于为相邻两个光源之间的暗区提供光照补偿。通过在相邻两个光源之间设置暗区补偿单元，提供了一种有效解决暗区效应的侧入式背光模组，从而避免了现有技术中解决暗区效应的方法所存在的缺陷。还公开了一种显示装置。

Description

侧入式背光模组以及显示装置 技术领域
本发明实施例涉及显示技术领域，尤其涉及一种侧入式背光模组以及显示装置。
背景技术
液晶显示器是被动发光器件，所以需要设计特殊的结构为其提供光源，而背光模组就是为液晶显示器件提供光源的装置。背光模组的工作方式是将射入的线光源或点光源转化为均匀出射的面光源，其中，背光模组根据光源放置位置的不同可以分为侧入式背光模组和直下式背光模组。电视和高亮度监视器等显示器一般要求薄、轻、亮度高、视角广和光利用率高，在这种液晶显示器中一般都用直下式背光模组，直下式结构不需要导光板，主要是靠反射盒子的作用将光线混合后均匀出射。侧入式结构一般适用于中小尺寸背光模组，主要应用于手机、笔记本电脑、车载面板和监视器等，具有轻、薄等特点，但光利用率不高。
例如，一种背光模组包括光源、反射层、导光板、扩散膜、棱镜片、增光膜等。光源从侧面射入导光板内，通过导光板的作用使光线均匀的从正面出射，并由棱镜片、扩散膜等的作用将光线均匀的控制在一定的视角内出射。其中，导光板的作用是将光源从侧面射入的光线改变传播方向转变为正面出射的均匀的面光源。光线在进入导光板内后可能会发生全反射而导致光线不能够从导光板中射出，因此导光板的下表面设置有微结构，通过微结构的散射作用破坏光线的全反射条件使光线能够均匀的从正面出射。反射层的作用是将从导光板的下表面透出的光线回收利用，以提高光线的利用率。扩散膜的作用是将从导光板中出射的光线雾化，尽量减小光线出射的明暗差，进一步提高出光线的均匀度。棱镜片是将散射的后光线重新汇聚，以提高光线出射的亮度。
用LED作光源的侧入式背光模组，由于LED光源的发散角受到限制，在导光板靠近LED光源的区域会出现光柱亮区，而产生亮暗不均的现象，即 Hot Spot现象。在侧导光LED背光模组中，LED在灯条PCB板上呈线性排列，两个LED灯之间有一定的间隙，LED并非均匀出光器件，它在一定出光角度(大约±50°)内光强最强，而其余出光角内的光强度很弱。综合以上两点原因，就使两颗LED之间的位置复合亮度低于0°出光角内的亮度，从而产生亮暗不均的现象。
为克服上述亮暗不均匀的Hot Spot现象，可以采用如下几种方式：
1)减小灯间距，但是灯间距工程极限在0.8mm左右，无法进一步减小。
2)通过下扩散片印刷黑边来遮挡。但是黑边不能在显示区域之内，即显示区域到边框距离实际并未减小。
3)增加边框宽度，但是又会导致设备的尺寸变大。
可见上述几种方式并不能解决Hot Spot现象，因此，亟待提供一种侧入式背光模组，以有效解决亮暗不均匀的Hot Spot现象。
发明内容
为有效解决亮暗不均匀的Hot Spot现象等问题，本发明实施例提供了一种侧入式背光模组以及显示装置。
本发明实施例提供的一种侧入式背光模组，其包括：导光板、若干个光源、相邻两个光源之间设置有暗区补偿单元；其中，所述导光板，用于将每个光源从侧面射入的光线均匀的从正面出射，所述暗区补偿单元，用于为相邻两个光源之间的暗区提供光照补偿。
可选地，本发明一实施例中，侧入式背光模组还包括灯条，所述若干个光源设置在所述灯条上。
可选地，本发明一实施例中，所述灯条设置在所述导光板侧面的第一方向上。
可选地，本发明一实施例中，所述暗区补偿单元包括暗区补偿光源，所述暗区补偿光源设置在所述导光板侧面的第二方向上。
可选地，本发明一实施例中，所述暗区补偿单元还包括光源补偿膜层， 所述光源补偿膜层，用于对所述暗区补偿光源发出的光进行导光处理，以向相邻两个光源之间的暗区提供光照补偿。
可选地，本发明一实施例中，所述光源补偿膜层包括第一荧光膜层和第二荧光膜层，所述暗区补偿单元，用于通过所述第一荧光膜层和第二荧光膜层用于对所述暗区补偿光源发出的光进行处理，以向相邻两个光源之间的暗区提供光照补偿。
可选地，本发明一实施例中，所述第一荧光膜层位于第二荧光膜层之下，所述第一荧光膜层设置有切口，所述切口，用于将暗区补偿光源发出的光导向到所述第二荧光膜层，所述第二荧光膜层，用于对接收到的光进行处理得到白光。
可选地，本发明一实施例中，所述第一荧光膜层包括第一基底，光猝灭剂层，所述光猝灭剂层，用于对除通过所述切口之外传输的光线进行吸收处理。
可选地，本发明一实施例中，所述第二荧光膜层包括第一荧光粉层、第二荧光粉层，所述第二荧光膜层，用于通过第一荧光粉层和所述第二荧光粉层对经过所述切口传输的光线进行处理以生成白光。
可选地，本发明一实施例中，所述第二荧光膜层还包括第二基底、第三基底以及第四基底，所述第一荧光粉层设置在所述第二基底、第三基底之间，所述第二荧光粉层设置在所述第三基底以及第四基底之间。
可选地，本发明一实施例中，所述暗区补偿光源为紫外光光源，所述光猝灭剂层为紫外光猝灭剂层，所述第一荧光粉层为用于产生蓝光蓝色荧光粉层；所述第二荧光粉层为用于产生黄光黄色荧光粉层，或，用于分别产生红光、绿光的红色和绿色混合的荧光粉层；所述第二荧光膜层，用于对通过所述第一荧光粉层产生的黄光，和通过所述第二荧光粉层产生的蓝光，进行混合产生白光；或者，对通过所述第一荧光粉层产生的黄光，和通过所述第二荧光粉层分别产生的红光、绿光，进行混合产生白光。
本发明实施例提供的一种显示装置，其包括本发明任一实施例中所述的侧入式背光模组。
本发明实施例通过在相邻两个光源之间设置暗区补偿单元，每个光源从侧面射入所述导光板内，通过所述导光板的作用使光线均匀的从导光板的正面出射，所述暗区补偿单元用于为相邻两个光源之间的暗区提供光照补偿，从而提供了一种有效解决暗区效应的侧入式背光模组，避免了上述现有技术中解决暗区效应的缺陷。
附图说明
图1为本发明实施利一侧入式背光模组的平面结构示意图；
图2为本发明实施例二侧入式背光模组的结构示意图；
图3为图2中光源补偿层的剖视结构示意图；
图4为形成本发明实施例二暗区补偿单元的制造流程示意图。
具体实施方式
为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合附图和具体实施方式对本发明作进一步详细的说明。
本发明下述实施例提供的一种侧入式背光模组，可以应用于具有显示界面的智能终端，如智能电视、智能手机、平板电脑等。
本发明实施例通过在相邻两个光源之间设置暗区补偿单元，每个光源从侧面射入所述导光板内，通过所述导光板的作用使光线均匀的从导光板的正面出射，所述暗区补偿单元用于为相邻两个光源之间的暗区提供光照补偿，从而提供了一种有效解决暗区效应的侧入式背光模组，避免了上述现有技术中解决暗区效应的缺陷。
图1为本发明一个实施利提供的侧入式背光模组的平面结构示意图；如图1所示，该侧入式背光模组包括：导光板101、若干个光源102、相邻两个光源102之间设置有暗区补偿单元103，所述导光板101，用于将每个光源102从侧面射入的光线均匀的从正面出射；所述暗区补偿单元103用于为相邻两个光源102之间的暗区提供光照补偿。因此，每个光源102从侧面射入所述导光板101内，通过所述导光板101的作用使光线均匀的从导光板101的正面出射，所述暗区补偿单元103为相邻两个光源之间的暗区提供光照补偿，以防止出现亮暗不均匀的Hot Spot现象。
本实施例中，导光板101(light guide plate)是利用光学级的亚克力/PC(Polycarbonate，聚碳酸酯)板材，然后用具有极高反射率且不吸光的高科技材料，在光学级的亚克力板材底面用UV(ultraviolet)网版印刷技术印上导光点。利用光学级亚克力板材吸取从灯发出来的光在光学级亚克力板材表面的停留，当光线射到各个导光点时，反射光会往各个角度扩散，然后破坏反射条件由导光板101正面射出。通过各种疏密、大小不一的导光点，可使光线从导光板101的正面均匀发光。
本实施例中的到导光板101可以是下述类型中的任意一种：
按形状划分为：平板：导光板101从入光侧来看为长方形。楔形板：又称斜板，从入光侧来看为一边厚一边薄成楔形(三角形)状。
按网点划分为：印刷式：导光板101完成外形加工后，以印刷方式将网点印在反射面，又分为IR和UV两种。非印刷式：将网点在导光板101成形时直接成形在反射面。又分为化学蚀刻(Etching)、精密机械刻画法(V-cut)、光微影法(Stamper)、内部扩散。
按成形划分为：射出成形：应用射出成形机将光学级PMMA颗粒运用高温、高压射入模具内冷却成形。裁切成形：将光学级PMMA原板经过裁切工序完成成品。
本实施例中，暗区补偿单元103可以是基于荧光粉的，也可以是基于不同颜色led灯的。利用不同颜色荧光粉对光线的处理，形成红、黄、绿、蓝、紫等不同颜色的光线并进行合成，从而形成起到背光效果的白光。也可以直接利用不同颜色的荧光粉制成不同颜色led灯，对不同颜色led灯发出的红、黄、绿、蓝、紫等不同颜色的光线并进行合成，从而形成起到背光效果的白光。
需要说明的是，本发明实施例也可以用到对特定颜色光进行补偿的场景，比如补偿红光，或者补偿黄光、绿光、蓝光、紫光。在具体实施的时候，只需要使用对应颜色的荧光粉或者荧光粉支撑的led灯即可，详细不再赘述。
图2为本发明另一个实施例提供的侧入式背光模组的结构示意图；如图2所示，该侧入式背光模组包括：导光板101、若干个光源102、相邻两个光源之间设置有暗区补偿单元103和灯条104，所述若干个光源102设置在所 述灯条104上，所述光源可以是线光源也可以是点光源。具体地，所述灯条104设置在所述导光板101侧面的第一方向上。
图3为图2中光源补偿层的剖视结构示意图，如图3所示，所述暗区补偿单元103包括暗区补偿光源113，所述暗区补偿光源113设置在所述导光板101侧面的第二方向上。所述第二方向和第一方向垂直，比如第一方向为水平方向，而第二方向为垂直方向。需要说明的是，对于本领域普通技术人员来说，在另外一实施例中，第一方向也可以为垂直方向，而第二方向为水平方向。
所述暗区补偿单元103还包括光源补偿膜层123，所述光源补偿膜层123用于对所述暗区补偿光源113发出的光进行导光处理，以向相邻两个光源之间的暗区提供光照补偿。具体地，所述光源补偿膜层123包括第一荧光膜层1231和第二荧光膜层1232，通过所述第一荧光膜层1231和第二荧光膜层1232可以对所述暗区补偿光源113发出的光进行协同处理，以向相邻两个光源之间的暗区提供光照补偿。
优选地，本实施例中，所述第一荧光膜层1231位于第二荧光膜层1232之下，所述第一荧光膜层1231设置有切口D，所述暗区补偿光源113发出的光仅通过所述切口D导向到所述第二荧光膜层1232，所述第二荧光膜层1232用于对接收到的光进行处理得到白光，从而形成对相邻两个光源之间的暗区进行补偿的光线。切口D的大小和形状参考暗区的形状和大小来形成。
优选地，本实施例中，所述第一荧光膜层1231包括第一基底12311，光猝灭剂层12312，所述切口D经切除掉所述第一基底12311和所述光猝灭剂层12312上下对应处的基底材料、猝灭剂形成，即切除掉所述第一基底12311的部分基地材料以及光猝灭剂层12312对应部分的猝灭剂得到对应的切口D，所述光猝灭剂层12312用于对除通过所述切口D之外传输的光线进行吸收处理，即被部分屏蔽，使得安全补偿光源的光线只通过切口D传输到第二荧光膜层1232。切除掉第一基底12311和所述光猝灭剂层12312的形状对应切口D的形状，以及对应的亮度区域，比如切口D可以为三角形，也可以为圆形或者其他形状。
优选地，本实施例中，所述第二荧光膜层1232包括第一荧光粉层12321、第二荧光粉层12322，通过所述第一荧光粉层12321和所述第二荧光粉层 12322对经过所述切口D传输的光线进行协同处理以生成白光。
进一步地，本实施例中，所述第二荧光膜层1232还可以包括第二基底12323、第三基底12324以及第四基底12325，所述第一荧光粉层12321设置在所述第二基底12323、第三基底12324之间，所述第二荧光粉层12322设置在所述第三基底12324以及第四基底12325之间。所述第二基底12323与所述第一基底12311之间通过粘合剂层12313粘合，从而将第一荧光膜层1231和第二荧光膜层1232整体组合到一起。
本实施例中，上述第一基底12311、第二基底12323、第三基底12324以及第四基底12325的材质可以为PET或者PC基材。
需要说明的是，一个可选实施例中，所述光猝灭剂层12312为紫外光猝灭剂层，所述第一荧光粉层12321为蓝色荧光粉层，用于产生蓝光；所述第二荧光粉层12322为黄色荧光粉层，用于产生黄光，在切口D的正上方位于第二荧光粉层12322上，所述黄光与所述蓝光混合产生所述白光，形成发光区域，其他位置为无光区域。
在另一个可选实施例中，所述暗区补偿光源113可以为紫外光光源，所述光猝灭剂层为紫外光猝灭剂层，所述第一荧光粉层12321为蓝色荧光粉层，用于产生蓝光；但所述第二荧光粉层12322为红色和绿色混合的荧光粉层，以分别产生红光、绿光，在切口D的正上方位于第二荧光粉层12322上，所述蓝光与所述红光、所述绿光混合产生所述白光，形成发光区域，其他位置为无光区域。
图4为形成本发明实施例二暗区补偿单元103的制造流程示意图；如图4所述，其包括：
S301、在第一基底依次形成光紫外光光猝灭剂层以及粘合胶层，以形成第一荧光粉层；
具体地，可以通过涂布、喷射等技术在第一基底上形成紫外光光猝灭剂层；可以通过涂布、贴合等技术在外光光猝灭剂层形成粘合胶层。
S302、根据相邻两个光源之间的暗区，切除掉所述第一基底和所述光猝灭剂层上下对应处的基底材料、猝灭剂形成切口；
具体地，可以通过刀具模切等技术切除掉所述第一基底和所述光猝灭剂 层上下对应处的基底材料、猝灭剂形成切口。
S303、在第二基底上依次形成蓝色荧光粉层、第三基底、黄色荧光粉层以及第四基底，以形成第二荧光粉层；
具体地，可以通过涂布、喷射等技术在第二基底上形成蓝色荧光粉层；可以通过贴合、流延复合等技术在蓝色荧光粉层上形成第三基底；可以通过涂布、喷射等技术在第三基底上形成黄色荧光粉层；可以通过贴合、流延复合等工艺在黄色荧光粉层上形成第四基底。
S304、将所述第一荧光粉层和第二荧光粉层通过上述粘合胶层粘合在成一整体。
本发明实施例提供的一种显示装置，其包括上述任一实施例中所述的侧入式背光模组。
本发明是参照根据本发明实施例的方法、设备(系统)、和产品的流程图和/或方框图来描述的。本说明书中的各个实施例均采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似的部分互相参见即可。
尽管已描述了本发明实施例的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例做出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本发明实施例范围的所有变更和修改。
最后，还需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者终端设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者终端设备所固有的要素。在没有更多限制的情况下，由语句“包括一个......”限定的要素，并不排除在包括所述要素的过程、方法、物品或者终端设备中还存在另外的相同要素。
以上对本发明所提供的一种侧入式背光模组和一种显示装置，进行了详 细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。

Claims (12)

  1. 一种侧入式背光模组，其特征在于，包括：导光板、若干个光源、相邻两个光源之间设置有暗区补偿单元；其中，
    所述导光板，用于将每个光源从侧面射入的光线均匀的从正面出射；
    所述暗区补偿单元，用于为相邻两个光源之间的暗区提供光照补偿。
  2. 根据权利要求1所述的侧入式背光模组，其特征在于，还包括灯条，所述若干个光源设置在所述灯条上。
  3. 根据权利要求2所述的侧入式背光模组，其特征在于，所述灯条设置在所述导光板侧面的第一方向上。
  4. 根据权利要求1所述的侧入式背光模组，其特征在于，所述暗区补偿单元包括暗区补偿光源，所述暗区补偿光源设置在所述导光板侧面的第二方向上。
  5. 根据权利要求4所述的侧入式背光模组，其特征在于，所述暗区补偿单元还包括光源补偿膜层，所述光源补偿膜层，用于对所述暗区补偿光源发出的光进行导光处理，以向相邻两个光源之间的暗区提供光照补偿。
  6. 根据权利要求5所述的侧入式背光模组，其特征在于，所述光源补偿膜层包括第一荧光膜层和第二荧光膜层；
    所述暗区补偿单元，用于通过所述第一荧光膜层和第二荧光膜层对所述暗区补偿光源发出的光进行处理，以向相邻两个光源之间的暗区提供光照补偿。
  7. 根据权利要求6所述的侧入式背光模组，其特征在于，所述第一荧光膜层位于第二荧光膜层之下，所述第一荧光膜层设置有切口；
    所述切口，用于将所述暗区补偿光源发出的光导向到所述第二荧光膜层；
    所述第二荧光膜层，用于对接收到的光进行处理得到白光。
  8. 根据权利要求7所述的侧入式背光模组，其特征在于，所述第一荧光膜层包括第一基底，光猝灭剂层；
    所述光猝灭剂层，用于对除通过所述切口之外传输的光线进行吸收处理。
  9. 根据权利要求7所述的侧入式背光模组，其特征在于，所述第二荧光膜层包括第一荧光粉层、第二荧光粉层，所述第二荧光膜层，用于通过第一 荧光粉层和所述第二荧光粉层对经过所述切口传输的光线进行处理以生成白光。
  10. 根据权利要求9所述的侧入式背光模组，其特征在于，所述第二荧光膜层还包括第二基底、第三基底以及第四基底，所述第一荧光粉层设置在所述第二基底、第三基底之间，所述第二荧光粉层设置在所述第三基底以及第四基底之间。
  11. 根据权利要求10所述的侧入式背光模组，其特征在于，所述暗区补偿光源为紫外光光源，所述光猝灭剂层为紫外光猝灭剂层；
    所述第一荧光粉层为用于产生蓝光的蓝色荧光粉层；
    所述第二荧光粉层为用于产生黄光的黄色荧光粉层，或，用于分别产生红光、绿光的红色和绿色混合的荧光粉层；
    所述第二荧光膜层，用于对通过所述第一荧光粉层产生的黄光，和通过所述第二荧光粉层产生的蓝光，进行混合产生白光；或者，对通过所述第一荧光粉层产生的黄光，和通过所述第二荧光粉层分别产生的红光、绿光，进行混合产生白光。
  12. 一种显示装置，其特征在于，包括上述权利要求1-11任一所述的侧入式背光模组。
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