WO2017173673A1 - 背光模组及液晶显示器 - Google Patents

背光模组及液晶显示器 Download PDF

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Publication number
WO2017173673A1
WO2017173673A1 PCT/CN2016/079807 CN2016079807W WO2017173673A1 WO 2017173673 A1 WO2017173673 A1 WO 2017173673A1 CN 2016079807 W CN2016079807 W CN 2016079807W WO 2017173673 A1 WO2017173673 A1 WO 2017173673A1
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WO
WIPO (PCT)
Prior art keywords
light
light source
propagation
backlight module
guide
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/CN2016/079807
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English (en)
French (fr)
Inventor
陈倩
陈仕祥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Technology Co Ltd
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Filing date
Publication date
Application filed by Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Technology Co Ltd
Priority to US15/038,722 priority Critical patent/US10261240B2/en
Publication of WO2017173673A1 publication Critical patent/WO2017173673A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • G02B6/0081—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
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
    • G02B1/045—Light guides
    • 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
    • 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
    • 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
    • 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
    • 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
    • G02B6/0075—Arrangements of multiple light guides
    • G02B6/0078—Side-by-side arrangements, e.g. for large area displays
    • 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
    • G02B6/0083—Details of electrical connections of light sources to drivers, circuit boards, or the like
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
    • G09G3/3426—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines the different display panel areas being distributed in two dimensions, e.g. matrix
    • 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
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133512—Light shielding layers, e.g. black matrix
    • 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
    • G02F1/133626—Illuminating devices providing two modes of illumination, e.g. day-night

Definitions

  • the present invention relates to the field of backlight display technologies, and in particular, to a backlight module and a liquid crystal display using the same.
  • Liquid crystal display has small size, low power consumption, no radiation, etc., and has made great progress in screen size and display quality. It has quickly become a mobile phone, computer monitor or TV. Mainstream products in the market.
  • liquid crystal displays which include a liquid crystal display panel and a backlight module. Since the liquid crystal display panel itself is not illuminated, it is necessary to display the image normally by the light source provided by the backlight module.
  • the screen display of the existing liquid crystal display is usually a full screen display, that is, the light emitting surface of the entire backlight module simultaneously provides light.
  • a display device such as a mobile phone or a computer
  • the entire screen needs to be illuminated at the same time to be displayed.
  • the illumination of the entire backlight module increases the power consumption of the display device, resulting in a significant reduction in the battery life of the display device.
  • frequent charging and discharging will also lead to a reduction in the life of the battery of the whole machine, which accelerates the damage speed to the display device.
  • the technical problem to be solved by the present invention is to provide a backlight module capable of realizing partition display and a liquid crystal display to which the backlight module is applied.
  • a backlight module including:
  • a light guide plate comprising a light incident surface and a light exit surface and a light propagation guide, wherein the light incident surface comprises an adjacent first a light-transmitting guide extending from the first light-input region to the inside of the light guide plate for enclosing a light-propagating channel, the light-propagating guide plate being open toward the Gap of the light surface;
  • a light bar comprising a first light source and a second light source, the first light source facing the first light incident region, such that light of the first light source enters the light propagation channel and passes through the light propagation guide After the reflection, the second light source is directly opposite to the light-emitting surface, and the second light source is opposite to the second light-incident region, so that the light of the second light source enters the light guide plate from the light-emitting surface. Shot;
  • a control circuit electrically connecting the first light source and the second light source to control a switching state of the first light source and the second light source.
  • the light propagation guide is disposed on a side of the light propagation channel with a reflective sheet or a reflective coating for reflecting light in the light propagation channel.
  • the light propagation channel is filled with air or a light guiding material.
  • the light propagation channel is filled with a light guiding material, and an air layer is disposed on a side of the light propagation path toward the light propagation channel, and the air layer is used for totally reflecting light in the light propagation channel.
  • the light propagation guide has a cross-sectional shape of a "U” shape, or a "V” shape, or a semicircular shape, or a groove shape.
  • the first light incident region is provided with a light guiding structure for causing light to be directed to the light propagation guide.
  • an angle of less than 120° is formed between the first light incident region and the second light incident region.
  • the exit surface of the first light source is disposed parallel to the first light incident region for increasing the proportion of light of the first light source into the first light incident region.
  • the first light source includes at least one first sub-light source
  • the second light source includes at least two second sub-light sources
  • a package size of the first sub-light source is smaller than a package size of the second sub-light source, such that The light intensity of the first light incident region is smaller than the light intensity of the second light incident region.
  • liquid crystal display comprising the backlight module of any of the above.
  • the present invention has the following beneficial effects:
  • the backlight module can flexibly control the light and dark states of the first light source and the second light source through a control circuit, and the light of the first light source enters the light propagation channel. And after being reflected by the light-propagating guide rail, sequentially ejecting from the notch and the light-emitting surface
  • the light exiting region is the first light exiting region
  • the light of the second light source enters the light guide plate and is emitted from the light emitting surface (the light exiting region is defined as the second light exiting region), so the guiding
  • the light-emitting surface of the light panel can realize partitioning light, and the light guide plate can selectively emit light from the first light-emitting area and/or the second light-emitting area.
  • the backlight module can select different light-emitting modes according to specific requirements, and the backlight module can select a partial light-emitting mode or a full light-emitting mode, so that the backlight module can be applied. It is more flexible and can reduce energy consumption, thereby increasing the service life of the backlight module.
  • the backlight module of the embodiment is provided with the light propagation guide rail, and the light propagation guide rail surrounds the light propagation channel, and the light propagation guide rail is provided with a notch facing the light emitting surface, so as to enter Most of the light of the first light entrance region is propagated in the light propagation channel, and then the notch passing through the light propagation guide is emitted from the first light exit region. That is, most of the light entering the first light-input region can propagate in a predetermined direction (the direction in which the light-propagating guide extends), reducing the proportion of light escaping, and increasing the light intensity of the light-propagating guide passing region. That is, the brightness of the light emitted from the first light exiting region is increased.
  • FIG. 1 is a schematic structural diagram of a backlight module according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a light guide plate of a backlight module according to an embodiment of the present invention.
  • Figure 3 is an enlarged schematic view showing the structure of A in Figure 2;
  • FIG. 4 is a schematic diagram showing a partial structure of another light guide plate of a backlight module according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram showing a partial structure of still another light guide plate of a backlight module according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of another backlight module according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a light guide plate of another backlight module according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a display area of a liquid crystal display panel of a liquid crystal display according to an embodiment of the present invention.
  • an embodiment of the present invention provides a backlight module 100 including a light guide plate 1 , a light bar 2 , and a control circuit 3 .
  • the light guide plate 1 includes a light incident surface 11 and a light exit surface 12 and a light propagation guide 13
  • the light incident surface 11 includes an adjacent first light incident region 111 and a second light incident region 112 .
  • the light guide rail 13 extends from the first light entrance region 111 to the inside of the light guide plate 1 , and the light propagation guide 13 surrounds the light propagation channel 130 , and the light propagation guide 13 defines a notch 131 facing the light exit surface 12 . .
  • the light bar 2 includes a first light source 21 and a second light source 22, and the first light source 21 faces the first light incident region 111 such that light of the first light source 21 enters the light propagation channel 130. And after being reflected by the light-propagating guide rail 13, sequentially ejecting from the notch 131 and the light-emitting surface 12, the second light source 22 is opposite to the second light-incident region 112, so that the second light source The light of 22 enters the light guide plate 1 and is emitted from the light exit surface 12.
  • the control circuit 3 is electrically connected to the first light source 21 and the second light source 22 for controlling the switching states of the first light source 21 and the second light source 22.
  • the backlight module 100 can flexibly control the light and dark state (ie, the power-on or power-off state) of the first light source 21 and the second light source 22 through the control circuit 3, and the The light of the first light source 21 enters the light propagation path 130 and is reflected by the light propagation guide 13 to sequentially exit from the notch 131 and the light exit surface 12 (the light exit area defined at this time is the first light exit area) 121), the light of the second light source 22 enters the light guide plate 1 and is emitted from the light exit surface 12 (the light exit region is defined as the second light exit region 122), so the light exit surface 12 of the light guide plate 1
  • the partition light can be realized, and the light guide plate 1 can selectively emit light from the first light exiting area 121 and/or the second light exiting area 122.
  • the backlight module 100 can select different light-emitting modes according to specific requirements, and the backlight module can be configured according to specific requirements.
  • the device can select a partial light-emitting mode or a full light-emitting mode, so that the application of the backlight module 100 is more flexible and energy consumption can be reduced, thereby increasing the service life of the backlight module 100.
  • the light-emitting guide 13 is disposed on the backlight module 100 of the embodiment, and the light-propagating guide 13 surrounds the light-propagating channel 130, and the light-propagating guide 13 is opened toward the light-emitting surface.
  • a notch 131 of 12 such that most of the light entering the first light entrance region 111 can propagate in the light propagation channel 130, and then pass through the notch 131 of the light propagation guide 13 from the first light exit region 121 shot.
  • most of the light entering the first light entrance region 111 can propagate in a predetermined direction (the direction in which the light propagation guide 13 extends), reducing the proportion of light escape, and increasing the passing area of the light propagation guide 13
  • the illumination intensity that is, the brightness of the light emitted from the first light exit region 121 is increased.
  • the extending direction, the extended length, and the extended shape of the light propagation guide 13 can be flexibly designed according to specific needs.
  • the shape and position of the first light exiting area 121 are first designed according to the requirements of the liquid crystal display of the backlight module 100, and then according to the shape and position of the first light exiting area 121.
  • the light-propagating guide 13 is designed such that the notch 131 of the light-propagating guide 13 faces the first light-emitting region 121.
  • the notch 131 can be a continuous notch, and can also include a plurality of spaced sub-gaps.
  • the light-propagating guide 13 between the sub-apertures adjacent to each other can also reflect the light within the light-propagating channel 130 so that the light can travel farther.
  • the light propagation guide 13 includes a reflective sheet or a reflective coating 132, and the reflective sheet or the reflective coating 132 is disposed on the light propagation guide 13 toward the One side of the light propagation channel 130 is for reflecting light in the light propagation channel 130 such that light in the light propagation channel 130 can smoothly propagate along the extending direction of the light propagation guide 13 .
  • the light-propagating guide 13 further includes a rail body 133, and the rail body 133 is attached with a reflective sheet or a reflective coating 132 on the surface of the light-propagating channel 130. It is used to reflect light in the light propagation channel 130.
  • At least one reflective sheet may be disposed directly inside the light guide plate 1. All the reflective sheets collectively constitute the light propagation guide 13 for reflecting light in the light propagation channel 130 ( In the present embodiment, the rail body as described in the above embodiment is not additionally provided. Can reason
  • the at least one reflective sheet may be a continuous integral reflective sheet or may include a plurality of reflective sheets.
  • the plurality of reflective sheets may be arranged in a connection arrangement or an interval arrangement according to specific needs. Of course, when the plurality of reflective sheets are spaced apart, the interval is small.
  • the light propagation channel 130 is filled with a light guiding material.
  • the material of the light guiding material is the same as the material of the light guide plate 1.
  • the material of the light guiding material may also be different from the light guide plate 1 .
  • a deep hole may be formed on the light guide plate 1 , and a reflective sheet or a reflective coating may be attached on the surface of the deep hole to form a light propagation guide 13 , thereby enclosing the light propagation.
  • the channel 130 is then filled with a light guiding material in the light propagation channel 130. It should be understood that the light guiding channel 130 may not be filled with the light guiding material, and the air may be filled to achieve the purpose of light propagation.
  • the light guiding material refers to a material that can realize light propagation, such as polystyrene (PS), polycarbonate (PC), polymethyl methacrylate (Polymethyl Methacrylate, PMMA) and so on.
  • PS polystyrene
  • PC polycarbonate
  • PMMA polymethyl methacrylate
  • the light propagation channel 130 of the light guide plate 1 is filled with a light guiding material, and the light propagation rail 13 includes an air layer, and the air layer is disposed at The light propagation guide 13 faces one side of the light propagation channel 130 for totally reflecting light within the light propagation channel 130.
  • the light when the light reaches the air layer from the light propagation path 130, the light is totally reflected by the difference between the refractive index of the light guiding material and the air, so as to realize the light being
  • the light propagation guide 13 reflects and continues to propagate. At this time, a portion of the light in the light propagation channel 130 is allowed to pass through the air layer and is emitted outside the light propagation channel 130. The portion of the light is small, and the first light exit region 121 is not significantly lowered. Light output brightness.
  • the air layer of this embodiment includes a plurality of closely connected air bubbles, and the plurality of air bubbles collectively constitute the air layer.
  • the air layer may also be a single continuous air barrier.
  • the light propagation guide 13 has a cross-sectional shape of a "U” shape, or a "V” shape, or a semicircular shape, or a groove shape.
  • the cross-sectional shape of the light-propagating guide 13 may also be other shapes. It should be understood that in the present embodiment, the cross section refers to the vertical A surface in which the light propagation guide 13 extends.
  • an angle ⁇ of less than 120° is formed between the first light incident region 111 and the second light incident region 112.
  • the first light incident region 111 forms an angle with the second light incident region 112, so as to enter
  • the light of the first light incident region 111 can be more and more smoothly incident on the light propagation guide 13 so that the light propagates farther in the light propagation channel 130 and the light utilization efficiency is higher.
  • the exit surface 210 of the first light source 21 is disposed parallel to the first light incident region 111 for increasing the proportion of the light of the first light source 21 into the first light incident region 111. More preferably, the exit surface 210 of the first light source 21 is disposed in the first light-incident region 111, and the light of the first light source 21 directly enters the light guide plate 1 such that the area of the first light-emitting region 121 is Larger, stronger light.
  • the first light incident region 111 is substantially perpendicular to the second light incident region 112 , and the exit surface 210 of the first light source 21 is parallel to the first light.
  • the light incident region 111 is provided.
  • the exit surface 210 of the first light source 21 and the exit surface of the second light source 22 are also substantially perpendicular.
  • the first light incident region 111 may also be coplanar with the second light incident region 112.
  • the first light entering the light may be located on the light propagation guide 13 .
  • a light guiding structure 134 is disposed at a position of the region 111 for causing light to be directed toward the light propagation guide 13.
  • the light guiding structure 134 may be disposed in a prismatic structure, a semicircular structure, or a trapezoidal structure or the like.
  • the first light source 21 includes at least one first sub-light source (for example, the first light source 21 shown in FIG. 1 includes a first a sub-light source, that is, 21 is directed to the first sub-light source), the second light source 22 includes at least two second sub-light sources 220, and a package size of the first sub-light source is smaller than a package of the second sub-light source 220 The size is such that the illumination intensity of the first light entrance region 111 is smaller than the illumination intensity of the second light entrance region 112.
  • the illumination intensity of the first light exiting area 121 is weaker than the light intensity of the second light exiting area 122, and the user can easily Distinguishing the first light exiting area 121 and the second light exiting area 122 facilitates diversified applications of the backlight module 100.
  • the package size of the first sub-light source may also be the same as the package size of the second sub-light source 220. Since the edge of the light guide plate 1 is generally weak in light intensity, the illumination intensity of the first light exit region 121 is also weaker than the second light exit region 122.
  • the control circuit 3 includes first pads 31 and second pads 32 that are independent of each other.
  • the first light source 21 is electrically connected to the first pad 31
  • the second light source 22 is electrically connected to the second pad 32 . Since the first pad 31 and the second pad 32 are independent of each other, a plurality of electrical connection states, such as energization or simultaneous energization, can be respectively implemented, so that the backlight module 100 can control the first light source 21 And the state of each of the second light sources 22.
  • an embodiment of the present invention further provides a liquid crystal display including the backlight module 100 and the liquid crystal display panel 200 as described above.
  • the liquid crystal display panel 200 includes a first display area 201 and a second display area 202.
  • the first light source 21 is configured to provide backlight for the first display area 201
  • the second light source 22 is used to The second display area 202 provides backlighting.
  • the light propagation guide 13 faces the first display area 201.
  • the first display area 201 and the second display area 202 can realize partition display, and the liquid crystal display Display by the first display area 201 and/or the second display area 202 may be selected. Since the liquid crystal display selects different display modes according to specific needs, the liquid crystal display can select a partial display or a full display mode, so that the application of the liquid crystal display is more flexible and energy consumption can be reduced. The low energy consumption performance of the liquid crystal display makes the life time and the service life of the power supply device longer.
  • the backlight module 100 of the embodiment is provided with the light propagation guide 13 , and most of the light of the first light source 21 propagates along the extending direction of the light propagation guide 13 , thereby uniformly
  • the first display area 201 is emitted, which reduces the proportion of light escaping and improves the light intensity of the first display area 201.
  • the display area of the second display area 202 is smaller than one third of the first display area 201.
  • the liquid crystal display panel 200 is a rectangular panel.
  • the liquid crystal display panel 200 further includes a black matrix 203 surrounding the outer circumferences of the first display area 201 and the second display area 202.
  • the size of the second display area 202 is smaller than the size of the first display area 201 in the longitudinal direction and the short side direction of the liquid crystal display panel 200.
  • the first display area 201 and the second display area 202 are more easily distinguished on the visual display.
  • the extension length of the light propagation guide 13 is substantially equal to the length of the first display area 201 in the longitudinal direction of the liquid crystal display panel 200.

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Abstract

一种背光模组（100），包括：导光板（1），包括入光面（11）和出光面（12）以及光传播导轨（13），入光面（11）包括相邻的第一入光区（111）和第二入光区（112），光传播导轨（13）自第一入光区（111）延伸至导光板（1）内部，用以围设出光传播通道（130），光传播导轨（13）开设有朝向出光面（12）的缺口（131）；灯条（2），包括第一光源（21）和第二光源（22），第一光源（21）正对第一入光区（111），以使第一光源（21）的光线进入光传播通道（130），并经过光传播导轨（13）反射后，依次从缺口（131）和出光面（12）射出，第二光源（22）正对第二入光区（112），以使第二光源（22）的光线进入导光板（1）后从出光面（12）射出；及控制电路（3），控制电路（3）电性连接第一光源（21）与第二光源（22），用以控制第一光源（21）和第二光源（22）的开关状态。一种应用背光模组（100）的液晶显示器（200）。背光模组（100）以及液晶显示器（200）可实现分区显示。

Description

背光模组及液晶显示器
本发明要求2016年4月6日递交的发明名称为“背光模组及液晶显示器”的申请号201610209041.0的在先申请优先权，上述在先申请的内容以引入的方式并入本文本中。
技术领域
本发明涉及背光显示技术领域，尤其涉及一种背光模组以及一种应用所述背光模组的液晶显示器。
背景技术
液晶显示器(Liquid Crystal Display，LCD)具有体积小、功耗小、无辐射等特点，在屏幕尺寸和显示质量方面都取得了很大进步，无论是手机、电脑显示器还是电视机方面都快速成为了市场主流产品。
现有市场上的液晶显示器大部分为背光型液晶显示器，其包括液晶显示面板以及背光模组。由于液晶显示面板本身是不发光的，因此需要借由背光模组提供的光源来正常显示影像。
现有液晶显示器的画面显示通常为整屏显示，也即整个背光模组的出光面同时提供光线。当液晶显示器应用在手机或电脑等显示装置中时，如果需要看某些讯息，则需要同时点亮整个屏幕才能显示。此时，整个背光模组的发光增加了显示装置的功耗，导致了显示装置的电池的续航时间大大减少。同时，频繁的充放电也会导致整机电池的寿命减少，加快了对显示装置的损坏速度。
发明内容
本发明所要解决的技术问题在于提供一种可实现分区显示的背光模组以及应用所述背光模组的液晶显示器。
为了实现上述目的，本发明实施方式采用如下技术方案：
一方面，提供一种背光模组，包括：
导光板，包括入光面和出光面以及光传播导轨，所述入光面包括相邻的第 一入光区和第二入光区，所述光传播导轨自所述第一入光区延伸至所述导光板内部，用以围设出光传播通道，所述光传播导轨开设有朝向所述出光面的缺口；
灯条，包括第一光源和第二光源，所述第一光源正对所述第一入光区，以使所述第一光源的光线进入所述光传播通道，并经过所述光传播导轨反射后，依次从所述缺口和所述出光面射出，所述第二光源正对所述第二入光区，以使所述第二光源的光线进入所述导光板后从所述出光面射出；及
控制电路，所述控制电路电性连接所述第一光源与所述第二光源，用以控制所述第一光源和所述第二光源的开关状态。
其中，所述光传播导轨朝向所述光传播通道的一侧上设置有反射片或反射涂层，用以反射所述光传播通道内的光线。
其中，所述光传播通道内填充有空气或导光材料。
其中，所述光传播通道内填充导光材料，所述光传播导轨朝向所述光传播通道的一侧上设置有空气层，所述空气层用以全反射所述光传播通道内的光线。
其中，所述光传播导轨的横截面形状为“U”形、或“V”形、或半圆形、或槽型。
其中，所述第一入光区设置有导光结构，用以促使光线射向所述光传播导轨。
其中，所述第一入光区与所述第二入光区之间形成小于120°的角度。
其中，所述第一光源的出射面平行于所述第一入光区设置，用以使增加所述第一光源的光线进入所述第一入光区的比例。
其中，所述第一光源包括至少一个第一子光源，所述第二光源包括至少两个第二子光源，所述第一子光源的封装尺寸小于所述第二子光源的封装尺寸，使得所述第一入光区的光照强度小于所述第二入光区的光照强度。
另一方面，还提供一种液晶显示器，包括如上任一项所述的背光模组。
相较于现有技术，本发明具有以下有益效果：
在本发明实施例中，所述背光模组能够通过控制电路灵活控制所述第一光源和所述第二光源各自的亮暗状态，并且所述第一光源的光线进入所述光传播通道，并经过所述光传播导轨反射后，依次从所述缺口和所述出光面射出(定 义此时的出光区域为第一出光区)，所述第二光源的光线进入所述导光板后从所述出光面射出(定义此时的出光区域为第二出光区)，因此所述导光板的出光面可以实现分区出光，所述导光板可以选择由所述第一出光区和/或所述第二出光区进行出光。由于所述导光板可以实现分区出光，因此所述背光模组可以依据具体的需求选择不同的出光模式，所述背光模组能够选择部分出光模式或者全部出光模式，使得所述背光模组的应用更为灵活并且能够降低能耗，进而增加了所述背光模组的使用寿命。
同时，本实施例所述背光模组由于设置了所述光传播导轨，所述光传播导轨围设出所述光传播通道，所述光传播导轨开设有朝向所述出光面的缺口，使得进入所述第一入光区的大部分光线能够在所述光传播通道内传播，而后经过所述光传播导轨的所述缺口自所述第一出光区射出。也即，进入所述第一入光区的大部分光线可以沿预定方向(所述光传播导轨的延伸方向)传播，降低了光线逃逸的比例，增加了所述光传播导轨经过区域的光照强度，也即提高了所述第一出光区的出光亮度。
附图说明
为了更清楚地说明本发明的技术方案，下面将对实施方式中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以如这些附图获得其他的附图。
图1是本发明实施例提供的一种背光模组的结构示意图。
图2是本发明实施例提供的一种背光模组的导光板的结构示意图。
图3是图2中A处结构的放大示意图。
图4是本发明实施例提供的一种背光模组的另一种导光板的部分结构的示意图。
图5是本发明实施例提供的一种背光模组的再一种导光板的部分结构的示意图。
图6是本发明实施例提供的另一种背光模组的结构示意图。
图7是本发明实施例提供的另一种背光模组的导光板的结构示意图。
图8是本发明实施例提供的一种液晶显示器的液晶显示面板的显示区域示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请一并参阅1至图3，本发明实施例提供了一种背光模组100，包括导光板1、灯条2以及控制电路3。其中，所述导光板1包括入光面11和出光面12以及光传播导轨13，所述入光面11包括相邻的第一入光区111和第二入光区112，所述光传播导轨13自所述第一入光区111延伸至所述导光板1内部，所述光传播导轨13围设出光传播通道130，所述光传播导轨13开设有朝向所述出光面12的缺口131。所述灯条2包括第一光源21和第二光源22，所述第一光源21正对所述第一入光区111，以使所述第一光源21的光线进入所述光传播通道130，并经过所述光传播导轨13反射后，依次从所述缺口131和所述出光面12射出，所述第二光源22正对所述第二入光区112，以使所述第二光源22的光线进入所述导光板1后从所述出光面12射出。所述控制电路3电性连接所述第一光源21与所述第二光源22，用以控制所述第一光源21和所述第二光源22的开关状态。
在本实施例中，所述背光模组100能够通过控制电路3灵活控制所述第一光源21和所述第二光源22各自的亮暗状态(也即通电或者断电状态)，并且所述第一光源21的光线进入所述光传播通道130，并经过所述光传播导轨13反射后，依次从所述缺口131和所述出光面12射出(定义此时的出光区域为第一出光区121)，所述第二光源22的光线进入所述导光板1后从所述出光面12射出(定义此时的出光区域为第二出光区122)，因此所述导光板1的出光面12可以实现分区出光，所述导光板1可以选择由所述第一出光区121和/或所述第二出光区122进行出光。由于所述导光板1可以实现分区出光，因此所述背光模组100可以依据具体的需求选择不同的出光模式，所述背光模组 100能够选择部分出光模式或者全部出光模式，使得所述背光模组100的应用更为灵活并且能够降低能耗，进而增加了所述背光模组100的使用寿命。
同时，本实施例所述背光模组100由于设置了所述光传播导轨13，所述光传播导轨13围设出所述光传播通道130，所述光传播导轨13开设有朝向所述出光面12的缺口131，使得进入所述第一入光区111的大部分光线能够在所述光传播通道130内传播，而后经过所述光传播导轨13的所述缺口131自所述第一出光区121射出。也即，进入所述第一入光区111的大部分光线可以沿预定方向(所述光传播导轨13的延伸方向)传播，降低了光线逃逸的比例，增加了所述光传播导轨13经过区域的光照强度，也即提高了所述第一出光区121的出光亮度。
应当理解的是，在本实施例中，所述光传播导轨13的延伸方向、延伸长度以及延伸形状均可以依据具体需求进行灵活设计。优选的，可以依据应用所述背光模组100的液晶显示器的需求，首先进行所述第一出光区121的形状与位置的设计，而后依据所述第一出光区121的形状与位置进行所述光传播导轨13的设计，使得所述光传播导轨13的所述缺口131正对所述第一出光区121。
可以理解的，所述缺口131可以是连续的缺口，也可以包括多个间隔设置的子缺口。当所述缺口131包括多个间隔的子缺口时，彼此相邻的子缺口之间的光传播导轨13同样可反射所述光传播通道130内的光线，使得所述光线能够传播得更远。
进一步地，请一并参阅图2和图3，所述光传播导轨13包括反射片或反射涂层132，所述反射片或所述反射涂层132设置在所述光传播导轨13朝向所述光传播通道130的一侧，用以反射所述光传播通道130内的光线，使得所述光传播通道130内的光线能够顺利地沿所述光传播导轨13的延伸方向传播。
作为一种可选实施例，所述光传播导轨13还包括有导轨本体133，所述导轨本体133朝向所述光传播通道130的表面上贴附有反射片或者涂覆有反射涂层132，用以反射所述光传播通道130内的光线。
作为另一种可选实施例，可以直接在所述导光板1内部设置至少一个反射片，所有的反射片共同构成所述光传播导轨13，用以反射所述光传播通道130内的光线(在本实施例中，不另外设置如上实施中所述的导轨本体)。可以理 解的，所述至少一个反射片，可以是连续的一体的反射片，也可以是包括有多个反射片。所述多个反射片之间，可以依据具体需求，布置成连接设置或者间隔设置。当然，当所述多个反射片之间间隔设置时，间隔很小。
进一步地，作为一种可选实施例，请参阅图3，所述光传播通道130内填充有导光材料。最佳的，所述导光材料的材质与所述导光板1的材质相同。
当然，请参阅图4，在另一种实施方式中，所述导光材料的材质也可以不同于所述导光板1。此时，可以先在所述导光板1上形成一深孔，在所述深孔的表面贴附反射片或者涂覆反射涂层，以形成光传播导轨13，进而围设出所述光传播通道130，而后在所述光传播通道130内填充导光材料。应当理解的是，所述光传播通道130内也可以不填充导光材料，填充空气即可实现光线传播的目的。
在本实施例中，所述导光材料是指可以实现光传播的材料，例如聚苯乙烯(Polystyrene，缩写PS)、聚碳酸酯(Polycarbonate，PC)、聚甲基丙烯酸甲酯(Polymethyl Methacrylate，PMMA)等。
进一步地，作为一种可选实施例，请参阅图5，所述导光板1的所述光传播通道130内填充导光材料，所述光传播导轨13包括空气层，所述空气层设置在所述光传播导轨13朝向所述光传播通道130的一侧，用以全反射所述光传播通道130内的光线。
在本实施例中，当所述光线从所述光传播通道130到达所述空气层时，光线由于所述导光材料与空气的折射率之间的差而被全反射，用以实现光线被所述光传播导轨13反射而继续进行传播的目的。此时，允许部分所述光传播通道130内的光线透过所述空气层，射到所述光传播通道130外，该部分光线很少，并不会明显降低所述第一出光区121的出光亮度。
如图5所示，本实施例所述空气层包括多个紧密相连的空气泡，所述多个空气泡共同组成所述空气层。当然，在其他实施方式中，所述空气层也可以为单一的连续的空气隔层。
进一步地，所述光传播导轨13的横截面形状为“U”形、或“V”形、或半圆形、或槽型。当然，在其他实施方式中，所述光传播导轨13的横截面形状也可以是其他形状。应当理解的，在本实施例中，所述横截面是指垂直于所 述光传播导轨13的延伸方向的面。
进一步地，请一并参阅图6和图7，作为一种可选实施例，所述第一入光区111与所述第二入光区112之间形成小于120°的角度α。当所述光传播导轨13的延伸方向垂直(或者大致垂直)于所述第二入光区112时，所述第一入光区111与所述第二入光区112形成一定角度，使得进入所述第一入光区111的光线能够更多地、更顺利的射到所述光传播导轨13上，从而使得光线在所述光传播通道130内传播得更远、光线利用率更高。
进一步地，所述第一光源21的出射面210平行于所述第一入光区111设置，用以使增加所述第一光源21的光线进入所述第一入光区111的比例。更佳地，所述第一光源21的出射面210贴合所述第一入光区111设置，所述第一光源21的光线全部直接进入所述导光板1，使得第一出光区121面积较大、光线较强。
举例而言，请一并参阅图6和图7，所述第一入光区111大致垂直于所述第二入光区112，所述第一光源21的出射面210平行于所述第一入光区111设置，此时，所述第一光源21的出射面210与所述第二光源22的出射面也大致垂直。
应当理解的，在其他实施方式中，所述第一入光区111也可以与所述第二入光区112共面，此时，可以在所述光传播导轨13位于所述第一入光区111的位置处设置一导光结构134，用以促使光线射向所述光传播导轨13。可选的，所述导光结构134可以设置成棱形结构、半圆形结构或者梯形结构等。
进一步地，作为一种可选实施例，请参阅图1，所述第一光源21包括至少一个第一子光源(举例而言，如图1所示的所述第一光源21包括一个第一子光源，故21即指向所述第一子光源)，所述第二光源22包括至少两个第二子光源220，所述第一子光源的封装尺寸小于所述第二子光源220的封装尺寸，使得所述第一入光区111的光照强度小于所述第二入光区112的光照强度。此时，当所述第一出光区121与所述第二出光区122同时显示时，所述第一出光区121的光照强度比所述第二出光区122的光照强度弱，用户可以容易地分辨出所述第一出光区121与所述第二出光区122，有利于所述背光模组100的多样化应用。
当然，在其他实施方式中，当所述第一出光区121位于所述导光板1的边缘处时，所述第一子光源的封装尺寸也可以与所述第二子光源220的封装尺寸相同，由于所述导光板1的边缘通常光照强度较弱，所述第一出光区121的光照强度也要弱于所述第二出光区122。
进一步地，请参阅图1，作为本发明的一种可选实施例，所述控制电路3包括相互独立的第一焊盘31和第二焊盘32。所述第一光源21电性连接第一焊盘31，所述第二光源22电性连接第二焊盘32。由于所述第一焊盘31与所述第二焊盘32相互独立，因此可以分别实现分别通电或者同时通电等多种电连接状态，因此所述背光模组100可以控制所述第一光源21和所述第二光源22各自的状态。
请一并参阅图1和图8，本发明实施例还提供一种液晶显示器，包括如上所述的背光模组100以及液晶显示面板200。其中，所述液晶显示面板200包括第一显示区201和第二显示区202，所述第一光源21用以为所述第一显示区201提供背光，所述第二光源22用以为所述第二显示区202提供背光。所述光传播导轨13正对所述第一显示区201。
在本实施例中，由于所述第一光源21与所述第二光源22是相互独立的，因此所述第一显示区201与所述第二显示区202可以实现分区显示，所述液晶显示器可以选择由所述第一显示区201和/或所述第二显示区202进行显示。由于所述液晶显示器以依据具体的需求选择不同的显示模式，所述液晶显示器能够选择部分显示或者全部显示模式，使得所述液晶显示器的应用更为灵活并且能够减少能耗。所述液晶显示器的低能耗性能，使得其供电装置的续航时间以及使用寿命均较长。
同时，本实施例所述背光模组100由于设置了所述光传播导轨13，所述第一光源21的大部分光线沿所述光传播导轨13的延伸方向进行传播，进而均匀地由所述第一显示区201射出，降低了光线逃逸的比例，提高了所述第一显示区201的光照强度。
进一步地，作为一种可选实施例，所述第二显示区202的显示面积小于所述第一显示区201的三分之一。
进一步地，作为一种可选实施例，所述液晶显示面板200为长方形面板。 所述液晶显示面板200还包括围设在所述第一显示区201和所述第二显示区202外周的黑色矩阵203。通过设置黑色矩阵203的形状，使得：在所述液晶显示面板200的长边方向和短边方向上，所述第二显示区202的尺寸均小于所述第一显示区201的尺寸。进而在直观显示上更容易辨别所述第一显示区201与所述第二显示区202。此时，所述光传播导轨13的延伸长度大致等于所述第一显示区201在所述液晶显示面板200长边方向上的长度。
以上对本发明实施例进行了详细介绍，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 (18)

  1. 一种背光模组，其中，包括：
    导光板，包括入光面和出光面以及光传播导轨，所述入光面包括相邻的第一入光区和第二入光区，所述光传播导轨自所述第一入光区延伸至所述导光板内部，用以围设出光传播通道，所述光传播导轨开设有朝向所述出光面的缺口；
    灯条，包括第一光源和第二光源，所述第一光源正对所述第一入光区，以使所述第一光源的光线进入所述光传播通道，并经过所述光传播导轨反射后，依次从所述缺口和所述出光面射出，所述第二光源正对所述第二入光区，以使所述第二光源的光线进入所述导光板后从所述出光面射出；及
    控制电路，所述控制电路电性连接所述第一光源与所述第二光源，用以控制所述第一光源和所述第二光源的开关状态。
  2. 如权利要求1所述的背光模组，其中，所述光传播导轨朝向所述光传播通道的一侧上设置有反射片或反射涂层，用以反射所述光传播通道内的光线。
  3. 如权利要求2所述的背光模组，其中，所述光传播通道内填充有空气或导光材料。
  4. 如权利要求1所述的背光模组，其中，所述光传播通道内填充导光材料，所述光传播导轨朝向所述光传播通道的一侧上设置有空气层，所述空气层用以全反射所述光传播通道内的光线。
  5. 如权利要求1所述的背光模组，其中，所述光传播导轨的横截面形状为“U”形、或“V”形、或半圆形、或槽型。
  6. 如权利要求1所述的背光模组，其中，所述第一入光区设置有导光结构，用以促使光线射向所述光传播导轨。
  7. 如权利要求1所述的背光模组，其中，所述第一入光区与所述第二入光区之间形成小于120°的角度。
  8. 如权利要求7所述的背光模组，其中，所述第一光源的出射面平行于所述第一入光区设置，用以使增加所述第一光源的光线进入所述第一入光区的比例。
  9. 如权利要求1所述的背光模组，其中，所述第一光源包括至少一个第一 子光源，所述第二光源包括至少两个第二子光源，所述第一子光源的封装尺寸小于所述第二子光源的封装尺寸，使得所述第一入光区的光照强度小于所述第二入光区的光照强度。
  10. 一种液晶显示器，其中，包括背光模组，所述背光模组包括：
    导光板，包括入光面和出光面以及光传播导轨，所述入光面包括相邻的第一入光区和第二入光区，所述光传播导轨自所述第一入光区延伸至所述导光板内部，用以围设出光传播通道，所述光传播导轨开设有朝向所述出光面的缺口；
    灯条，包括第一光源和第二光源，所述第一光源正对所述第一入光区，以使所述第一光源的光线进入所述光传播通道，并经过所述光传播导轨反射后，依次从所述缺口和所述出光面射出，所述第二光源正对所述第二入光区，以使所述第二光源的光线进入所述导光板后从所述出光面射出；及
    控制电路，所述控制电路电性连接所述第一光源与所述第二光源，用以控制所述第一光源和所述第二光源的开关状态。
  11. 如权利要求10所述的液晶显示器，其中，所述光传播导轨朝向所述光传播通道的一侧上设置有反射片或反射涂层，用以反射所述光传播通道内的光线。
  12. 如权利要求11所述的液晶显示器，其中，所述光传播通道内填充有空气或导光材料。
  13. 如权利要求10所述的液晶显示器，其中，所述光传播通道内填充导光材料，所述光传播导轨朝向所述光传播通道的一侧上设置有空气层，所述空气层用以全反射所述光传播通道内的光线。
  14. 如权利要求10所述的液晶显示器，其中，所述光传播导轨的横截面形状为“U”形、或“V”形、或半圆形、或槽型。
  15. 如权利要求10所述的液晶显示器，其中，所述第一入光区设置有导光结构，用以促使光线射向所述光传播导轨。
  16. 如权利要求10所述的液晶显示器，其中，所述第一入光区与所述第二入光区之间形成小于120°的角度。
  17. 如权利要求16所述的液晶显示器，其中，所述第一光源的出射面平行于所述第一入光区设置，用以使增加所述第一光源的光线进入所述第一入光 区的比例。
  18. 如权利要求10所述的液晶显示器，其中，所述第一光源包括至少一个第一子光源，所述第二光源包括至少两个第二子光源，所述第一子光源的封装尺寸小于所述第二子光源的封装尺寸，使得所述第一入光区的光照强度小于所述第二入光区的光照强度。
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