WO2018113001A1 - 一种导光板及液晶模组 - Google Patents

一种导光板及液晶模组 Download PDF

Info

Publication number
WO2018113001A1
WO2018113001A1 PCT/CN2016/112424 CN2016112424W WO2018113001A1 WO 2018113001 A1 WO2018113001 A1 WO 2018113001A1 CN 2016112424 W CN2016112424 W CN 2016112424W WO 2018113001 A1 WO2018113001 A1 WO 2018113001A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
guide plate
light guide
angle
liquid crystal
Prior art date
Application number
PCT/CN2016/112424
Other languages
English (en)
French (fr)
Inventor
徐鹏博
Original Assignee
武汉华星光电技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 武汉华星光电技术有限公司 filed Critical 武汉华星光电技术有限公司
Priority to US15/327,216 priority Critical patent/US20190235149A1/en
Publication of WO2018113001A1 publication Critical patent/WO2018113001A1/zh

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0018—Redirecting means on the surface 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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
    • 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
    • G02B6/0028—Light guide, e.g. taper
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width 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
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0045—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide
    • G02B6/0046—Tapered light guide, e.g. wedge-shaped 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
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0045—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide
    • G02B6/0046—Tapered light guide, e.g. wedge-shaped light guide
    • G02B6/0048—Tapered light guide, e.g. wedge-shaped light guide with stepwise taper
    • 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
    • G02B6/009—Positioning aspects of the light source in the package
    • 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
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B6/122—Basic optical elements, e.g. light-guiding paths
    • G02B6/1228—Tapered waveguides, e.g. integrated spot-size transformers
    • 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
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
    • G02B6/2852—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using tapping light guides arranged sidewardly, e.g. in a non-parallel relationship with respect to the bus light guides (light extraction or launching through cladding, with or without surface discontinuities, bent structures)
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B2006/12083—Constructional arrangements
    • G02B2006/12092—Stepped
    • 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
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B2006/12166—Manufacturing methods
    • G02B2006/12195—Tapering
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses

Definitions

  • the present invention relates to the field of liquid crystal display panels, and more particularly to a light guide plate and a liquid crystal module.
  • the liquid crystal module of the present invention includes a light guide plate of the present invention, so that the thickness of the liquid crystal module is thinner.
  • the liquid crystal display is different from the self-illuminating CRT, PDP, etc. Since the liquid crystal itself does not emit light, an external light source is indispensable for display.
  • the light source located on the back of the display screen is called a backlight. According to the positional relationship between the light source (fluorescent light, LED, EL, etc.) and the light guide plate, the backlight has a sub-type and a side-mounted type.
  • the advantage of the underlying backlight is that the light utilization rate is high, and it is easy to realize a large area.
  • the disadvantage is that the brightness is uneven, and the thickness is large. As the demand for portable devices such as notebook computers continues to increase, there is an urgent need for thinner, Lightweight LCD modules, so there are more and more applications for side-mounted backlights.
  • FIG. 1 is a schematic structural view of the ultra-thin module 10 in the prior art.
  • the backlight is a side-lit backlight.
  • the backlight 13 includes an LED lamp 131 and a fixing frame 132.
  • the backlight 13 is disposed on the left side of the light guide plate 12.
  • the light guide plate 12 is disposed on the lower surface of the light guide plate 12, and the upper portion of the light guide plate 12 is disposed in the middle.
  • the layer 14 and the upper portion of the intermediate layer 14 are sequentially provided with a bonding layer 141 and a liquid crystal panel 15.
  • the light guide plate 12 has a first slope 121, so that when the liquid crystal panel 15 is disposed above the intermediate layer 14, there is a gap between the liquid crystal panel 15 and the bonding layer 141 directly above the light-emitting side 122 of the light guide plate.
  • the second gap 17 cannot be compensated, so the thickness of the module 10 is mainly determined by the retroreflective sheeting 11, the light guide plate 12, the intermediate layer 14, the second gap 17, and the liquid crystal panel 15.
  • the liquid crystal module mainly has a first thickness T1 on the light exit side of the light guide plate, a second thickness T2 on the light incident side of the light guide plate, and an overall thickness T3 of the liquid crystal module, and the thickness of the light exit side 122 of the light guide plate, the reflective sheet 11, and the like.
  • the first thickness T1 of the liquid crystal module is 0.52 mm
  • the second thickness T2 is 0.63 mm
  • the overall thickness T3 of the liquid crystal module is 0.97 mm
  • the second gap is 0.06 mm. Due to limitations of existing materials, the second The gap cannot be eliminated, so in order to further reduce the thickness of the liquid crystal module, that is, to eliminate the second gap, a newer technique is needed.
  • the present invention provides a light guide plate, and a backlight module including the light guide plate is proposed.
  • the backlight module eliminates the prior art by using the light guide plate.
  • the second gap makes the backlight module smaller in thickness.
  • the light guide plate of the present invention comprises a light-emitting surface; a bottom surface, the ground surface is opposite to the light-emitting surface; the light-incident end surface is disposed in parallel with the light-emitting surface, and the light-incident end surface includes a first edge and a first edge a second edge, the first edge is adjacent to the light exiting surface, and the second edge is away from the light emitting surface; the first guiding inclined surface, one end of the first guiding inclined surface intersects the bottom surface at a first boundary, The other end is connected to the second edge of the light incident end surface, and the first guiding slope forms a first angle with the bottom surface, and the first angle is greater than 90 degrees.
  • the light guide plate When the light source enters the light guide plate from the light incident end surface, the light guide plate directly reflects the first guide inclined surface, and reflects on the first guide inclined surface to propagate in the light guide plate.
  • the light guide plate further includes a second guiding slope, one end of the second guiding slope intersecting the light emitting surface at a second boundary, and the other end is first with the light incident end surface
  • the edges are connected, and the second guiding slope forms a second angle with the light emitting surface, and the second angle is greater than 90 degrees.
  • the thickness of the light guide plate can be basically uniform, and the material is more saved, which is advantageous for integral molding and convenient for the manufacture of the light guide plate.
  • the light guide plate further includes a first side, the first side is perpendicular to the light incident end surface, and the first guiding slope Connecting to the second edge of the light incident end surface by the first side; further comprising a second side, the second side is parallel to the first side, and the second guiding slope passes the second side Connected to the first edge of the light incident end face.
  • the thickness of the light guide plate is increased, so that the light incident end surface and the liquid crystal panel are in a substantially horizontal position, and the light source and the light incident end surface on the flexible printed circuit board are shortened.
  • the distance reduces the leakage of light and makes full use of the existing light source.
  • the first angle is not less than the second angle, especially when the first angle is equal to the second angle and is 135 degrees, the first guiding slope forms a right angle prism, according to a right angle According to the principle of the prism, the light incident from the light incident end face is incident at a 45 degree angle with the first guiding inclined surface, and the light incident from the light incident end face is all guided by the first guiding inclined surface. The oblique reflection enters the light guide plate, further avoiding the leakage of the light source and improving the utilization of the light source.
  • the light incident end surface coincides with the light exit surface, and the first angle is equal to 135 degrees.
  • the light guide plate is configured to take out a part of the end portion on the light surface as a light incident end surface, and form a 45 degree chamfer at a bottom surface corresponding to the light incident end surface. Therefore, the light guide plate is easier to be processed and is first.
  • the first guiding slope also constitutes a right-angle prism. According to the principle of the right-angle prism, the light incident from the light-incident end face is incident at a 45-degree angle with the first guiding slope. The light incident on the light end face is reflected by the first guiding slope into the light guide plate after encountering the first guiding slope, thereby further avoiding the leakage of the light source and improving the utilization of the light source.
  • the light guide plate no longer has the first side and the second side, it can be directly made of a flat plate, and the structure is stronger and the cost is lower.
  • the present invention also provides a liquid crystal module, which includes the light guide plate provided by the present invention, and the liquid crystal module is sequentially provided with a reflective sheet, a light guide plate, an intermediate layer, and a liquid crystal panel, wherein the light guide plate enters A light source is disposed on the light end face, and the light source is disposed on the flexible printed wiring board of the liquid crystal panel.
  • the liquid crystal module uses the light guide plate provided by the present invention, and the LED light source is disposed on the flexible printed circuit board of the liquid crystal panel, and the flexible printed circuit board and the liquid crystal panel are disposed at the same height, no longer
  • the side-mounted light source with the fixing frame disposed under the liquid crystal panel is used as in the prior art, thereby further reducing the thickness of the liquid crystal module, and is advantageous for the thin and light design of the liquid crystal module.
  • FIG. 1 is a schematic structural view of a 5.2" ultra-thin liquid crystal module 10 in the prior art
  • FIG. 2 is a schematic structural view of a light guide plate according to a first embodiment of the present invention
  • FIG. 3 is a schematic structural view of a light guide plate according to a second embodiment of the present invention.
  • FIG. 4 is a schematic structural view of a light guide plate according to a third embodiment of the present invention.
  • FIG. 5 is a schematic structural view of a light guide plate according to a fourth embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a liquid crystal module 20 according to the present invention.
  • FIG. 7 is a schematic structural view of a liquid crystal module 30 according to the present invention.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the light guide plate 100 is a light guide plate 100 according to a first embodiment of the present invention.
  • the cross section of the light guide plate 100 is as shown in FIG. 2.
  • the light guide plate 100 includes a light exit surface 101, a bottom surface 102, a bottom surface 102 and a light exit surface. 101 is oppositely disposed.
  • a left side of the bottom surface 102 has a slope, and the slope forms a first guiding slope 104.
  • One end of the first guiding slope 104 intersects the bottom surface 102 at the first boundary 111 at the first boundary.
  • the first guiding slope 104 forms a first angle ⁇ 1 with the bottom surface 102.
  • the first angle ⁇ 1 is greater than 90 degrees.
  • the first auxiliary 112' is formed.
  • the first auxiliary 112' intersects the light-emitting surface 101 at the first edge 112, and on the light-emitting surface 101, from the first edge 112 to the left to the light-emitting surface.
  • the left edge region of the 101 constitutes the light incident end face 103.
  • the left edge of the light incident end face 103 is referred to as a second edge 113, that is, the region between the first edge 112 and the second edge 113 is the light incident end face 103.
  • the first guiding slope 104 intersects the light incident end surface 103 at the second edge 113.
  • the body of the light guide plate 100 is obtained by extending in the vertical direction as shown in the cross section of FIG.
  • the incident light ray 20 When the incident light ray 20 enters the light guide plate 100 perpendicular to the light incident end surface 103, the incident light ray 20 directly enters the first guiding slope 104, and is reflected by the first guiding slope 104 to enter the light guide plate.
  • the first guiding slope 104 is provided with a bump so that the light incident on the first guiding slope 104 is more reflected into the light guide plate, thereby reducing the light refracting, especially when the first angle ⁇ 1 is 135 degrees.
  • the first guiding slope 104 constitutes a total reflection prism, so that all the light incident on the first guiding slope 104 is reflected into the light guide plate, no refraction is generated, and the existing light source is utilized more fully, and the liquid crystal panel is improved. Display brightness.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the light guide plate 200 includes a light exit surface 201, a bottom surface 202, and a bottom surface 202 disposed opposite to the light exit surface 201.
  • the incident end surface 203 is parallel to the light exit surface 201.
  • the first guide slope 204 is One end intersects the bottom surface 202 at the first boundary 211, and the other end of the first guiding slope 204 intersects the light incident end surface 203 at the second edge 213.
  • the first guiding slope 204 and the bottom surface 202 form a first An angle ⁇ 2, preferably, the first angle ⁇ 2 is greater than 90 degrees.
  • the light guide plate 200 further includes a second guiding slope 205.
  • One end of the second guiding slope 205 intersects the light exit surface 201 at the second boundary 214, and the other end intersects the light incident end surface 203 at the first
  • the edge 212, at the second boundary 214, the second guiding slope 205 and the light-emitting surface 201 constitute a second angle ⁇ 2, preferably, ⁇ 2 is greater than 90 degrees, and the first angle ⁇ 2 is not less than the second angle ⁇ 2, so that The width of the light incident end face 203 is ensured, and the production and production of the light guide plate 200 is facilitated.
  • the body of the light guide plate 200 is obtained by extending in the vertical direction as shown in the cross section of FIG.
  • the incident light ray 20 When the incident light ray 20 enters the light guide plate 200 perpendicular to the light incident end surface 203, the incident light ray 20 directly enters the first guiding slope 204, and is reflected by the first guiding slope 204 to enter the light guide plate.
  • a portion of the light reflected by the first guiding slope 204 is incident on the second guiding slope 205 and is reflected by the second guiding slope 205 to prevent light at the first guiding slope 204 and the second guiding slope 205.
  • the refracting leakage is provided with bumps on the first guiding slope 204 and the second guiding slope 205, so that the light incident on the first guiding slope 204 and the second guiding slope 205 is more reflected.
  • the light plate reduces the light refraction leakage, especially when the first angle ⁇ 2 and the second angle ⁇ 2 are simultaneously 135 degrees, the first guiding slope 204 and the second guiding slope 205 form a total reflection prism, so that the first reflection
  • the light on the guiding slope 204 is all reflected into the light guide plate, no refraction is generated, and a part of the light is repeatedly reflected by the first guiding inclined surface 204 and the second guiding inclined surface 205, and finally propagates in the light guiding plate, thereby reducing Leakage of light, more fully
  • the existing light source is utilized to improve the display brightness of the liquid crystal panel.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • the light guide plate 300 is a light guide plate 300 according to a third embodiment of the present invention.
  • the cross section of the light guide plate 300 is as shown in FIG. 4.
  • the light guide plate 300 includes a light exit surface 301, a bottom surface 302, and a first guide slope. 304, the second guiding slope 305, the incident end surface 303, and the light guide plate 300 are different from the light guide plate 200 in the second embodiment.
  • the light guide plate 300 further includes a first side surface 306, and the first side surface 306 and the light incident end surface 303 intersect perpendicularly.
  • the other end of the first side 306 intersects the first guiding slope 304, that is, the first guiding slope 304 is connected to the second edge 313 of the light incident end surface 303 through the first side 306.
  • the first angle ⁇ 3 and the second angle ⁇ 3 are both greater than 90 degrees, and the first angle ⁇ 3 is not less than the second angle
  • the degree ⁇ 3, the setting of the first side surface 306 increases the height of the light incident end surface 303 to a certain extent, shortens the distance between the light source and the light incident end surface of the flexible printed circuit, and utilizes the light source more effectively.
  • the body of the light guide plate 300 is obtained by extending in the vertical direction as shown in the cross section of FIG.
  • the incident light ray 20 when the incident light ray 20 enters the light guide plate 300 perpendicular to the light incident end surface 303, the incident light ray 20 directly enters the first guiding slope 304, and is reflected by the first guiding slope 304.
  • a part of the light reflected by the first guiding inclined surface 304 is incident on the second guiding inclined surface 305 and then reflected by the second guiding inclined surface 305, in order to prevent the first guiding inclined surface 304 and the first
  • the light at the two guiding slopes 305 is refracted, and the first guiding slope 304 and the second guiding slope 305 are provided with bumps for injecting onto the first guiding slope 304 and the second guiding slope 305.
  • the light is more reflected into the light guide plate to reduce the light refracting, especially when the first angle ⁇ 3 and the second angle ⁇ 3 are simultaneously 135 degrees, the first guiding slope 304 and the second guiding slope 305 are all formed.
  • the reflecting prism is such that all the light incident on the first guiding inclined surface 304 is reflected into the light guiding plate, no refraction is generated, and a part of the light is repeatedly reflected by the first guiding inclined surface 304 and the second guiding inclined surface 305, and finally Propagation in the light guide plate, reduced
  • the leakage of light makes full use of the existing light source and improves the display brightness of the liquid crystal panel.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • FIG. 5 is a light guide plate 400 according to a fourth embodiment of the present invention.
  • the cross section of the light guide plate 400 is as shown in FIG. 5.
  • the light guide plate 400 is different from the light guide plate 300, and the light guide plate 400 is further
  • the second side surface 407 intersects the light incident end surface 403 perpendicularly to the first edge 412, and the other end intersects the second guiding slope 405, that is, the second guiding slope 405 passes through the second side surface 407 and enters the light.
  • the first edge 412 of the end face 403 is connected.
  • the light guide plate 400 Compared with the light guide plate 300, the light guide plate 400 further increases the height of the light incident end surface 403, further shortens the distance between the light source and the light incident end surface on the flexible printed circuit board, and more effectively utilizes the light source.
  • the body of the light guide plate 400 is obtained by extending in the vertical direction as shown in the cross section of FIG.
  • the incident light ray 20 when the incident light ray 20 enters the light guide plate 400 perpendicular to the light incident end surface 403, the incident light ray 20 directly enters the first guiding slope 404, and is reflected by the first guiding slope 404.
  • a part of the light reflected by the first guiding slope 404 is incident on the second guiding slope 405 and then reflected by the second guiding slope 405, in order to prevent the first guiding slope 404 and the first
  • the light at the two guiding slopes 405 is refracted, and the first guiding slope 404 and the second guiding slope 405 are provided with bumps for injecting onto the first guiding slope 404 and the second guiding slope 405.
  • the first guiding slope 404 and the second guiding slope 405 form a total reflection prism, so that The light incident on the first guiding slope 404 is all reflected into the light guide plate, no refraction occurs, and a part of the light is repeatedly reflected by the first guiding slope 404 and the second guiding slope 405, and finally in the light guide plate. Propagation reduces the leakage of light, makes full use of the existing light source, and improves the display brightness of the liquid crystal panel.
  • FIG. 6 is a schematic structural view of the liquid crystal module 20.
  • the liquid crystal module 20 is provided with a reflective sheet 21, a light guide plate 400, an intermediate layer 24, and a glue layer in this order from bottom to top. 241.
  • the liquid crystal panel 25 is provided with an LED light source 232 on the light incident end surface of the light guide plate 400.
  • the LED light source 232 is disposed on the flexible printed circuit board 29 of the liquid crystal panel 25 through the fixing frame 231, because of the flexible printing.
  • the circuit board 29 and the liquid crystal panel 25 are arranged substantially on the same horizontal surface, and the LED light source is no longer under the liquid crystal panel as in the prior art FIG. 1, thus eliminating the second gap in the prior art and still 5.2".
  • the ultra-thin liquid crystal module is taken as an example.
  • the second gap is eliminated due to the use of the light guide plate 400 of the present invention and the LED light source disposed on the flexible printed circuit board, thereby making the liquid crystal
  • the overall thickness T3' of the module 20 is reduced to 0.91 mm, which makes the liquid crystal module thinner, and realizes the thin and light design of the liquid crystal module.
  • the LED can be made on the flexible printed circuit board, and the thickness of the LED light source holder can be increased to make the LED relative to the flexible printed circuit.
  • the plate is increased to supplement the distance between the light incident end face of the light guide plate and the light exit surface of the LED.
  • 7 is a schematic structural view of a liquid crystal module 30 using the light guide plate 100 of the present invention, wherein the LED light source 332 disposed on the flexible printed circuit board is increased by the fixing frame 331 to compensate for the light incident end surface of the light guide plate 100.
  • the distance between the LED and the light-emitting surface of the LED makes full use of the light source, so that the thickness of the liquid crystal module is thinner, and the thin and light design of the liquid crystal module is facilitated.

Landscapes

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

Abstract

一种导光板（100,200,300,400）及包含导光板（100,200,300,400）的液晶模组（20），导光板（100,200,300,400）包括出光面（101,201,301）、底面（102,202,302）、入光端面（103,203,303,403），入光端面（103,203,303,403）与出光面（101,201,301）平行，还包括一端与底面（102,202,302）相交、另一端与入光端面（103,203,303,403）相交的第一导引斜面（104,204,304,404），第一导引斜面（104,204,304,404）与底面（102,202,302）构成大于90度的第一角度，当第一角度等于135度时，第一导引斜面（104,204,304,404）处构成全反射棱镜，使得垂直于入光端面（103,203,303,403）进入的光线在经过第一导引斜面（104,204,304,404）时发生全反射进入导光板（100,200,300,400）内传播；包含导光板（100,200,300,400）的液晶模组（20），实现了液晶模组（20）的轻薄化设计。

Description

一种导光板及液晶模组
相关申请的交叉引用
本申请要求享有于2016年12月23日提交的名称为“一种导光板及液晶模组”的中国专利申请CN201611214463.3的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本发明涉及液晶显示面板技术领域，尤其涉及一种导光板及液晶模组，本发明的液晶模组由于包含有本发明的导光板，使得液晶模组的厚度更薄。
背景技术
液晶显示器不同于自发光型的CRT、PDP等，由于液晶本身并不发光，为进行显示，外部光源不可或缺。位于显示屏背面的光源称为背光源，按光源(荧光灯、LED、EL等)与导光板间的位置关系，背光源有下置式和侧置式之分。下置式背光源的优点是，光利用率高，容易实现大面积，缺点是亮度不均匀，而且厚度尺寸大，随着人们对笔记本电脑等便携设备的需求不断增大，迫切需要更薄型化、轻量化的液晶模组，所以侧置式背光源的应用越来越多。
侧置式背光源的应用一定程度上降低了液晶模组的厚度，但模组的整体厚度是由最后的材料堆叠决定的，图1为现有技术中超薄模组10的结构示意图，其中采用的背光源为侧置式背光源，背光源13包括LED灯131和固定架132，其设置在导光板12的左侧，导光板12的下面设置有反光片11，导光板12的上部设置有中间层14，中间层14的上部依次设置有结合胶层141和液晶面板15，为了预防振动时背光源对液晶面板的影响，液晶面板15与结合胶层141之间会预留一个微小的第一间隙16。为了适应侧置式光源，导光板12存在第一斜面121，从而导致当液晶面板15设置在中间层14上方时，在导光板出光侧122的正上方，液晶面板15与结合胶层141之间存在无法补偿的第二间隙17，所以模组10的厚度主要由反光片11、导光板12、中间层14、第二间隙17和液晶面板15决定， 在图1中，液晶模组主要有导光板出光侧第一厚度T1、导光板入光侧第二厚度T2、液晶模组整体厚度T3，而当导光板出光侧122的厚度、反光片11等材料薄化到一定程度后，受LED、挠性印制电路板等材料薄化难度较大的限制，很难进一步减小液晶模组的厚度，例如现有技术中5.2”超薄液晶模组为例，该液晶模组的第一厚度T1为0.52mm，第二厚度T2为0.63mm，液晶模组整体厚度T3为0.97mm，第二间隙为0.06mm，由于现有材料的限制，第二间隙无法消除，因此为了进一步减小液晶模组的厚度亦即消除第二间隙，就需要一种更新的技术。
发明内容
为了进一步减小液晶模组的厚度，本发明提出了一种导光板，同时提出了一种包含该导光板的背光模组，该背光模组由于使用该导光板后，消除了现有技术中的第二间隙，使得背光模组厚度更小。
本发明提出的导光板，包括出光面；底面，该地面与所述出光面相对设置；入光端面，该入光端面与所述出光面平行设置，所述入光端面包括第一边缘和第二边缘，所述第一边缘靠近所述出光面，所述第二边缘远离所述出光面；第一导引斜面，所述第一导引斜面的一端与所述底面相交于第一边界，另一端与所述入光端面的第二边缘相连，所述第一导引斜面与所述底面构成第一角度，第一角度大于90度。
这种设置的导光板，当光源从入光端面进入导光板后，直射到第一导引斜面上，在第一导引斜面上发生反射，进而在导光板内传播。
作为对本发明的进一步改进，所述导光板进一步包括第二导引斜面，所述第二导引斜面的一端与所述出光面相交于第二边界，另一端与所述入光端面的第一边缘相连，所述第二导引斜面与所述出光面构成第二角度，第二角度大于90度。
这样设置后，就可以使得导光板各处的厚度基本一致，更加节省材料，有利于一体成型，方便导光板的制作。
作为对带有第一导引斜面和第二导引斜面的导光板的改进，该导光板还包括第一侧面，所述第一侧面与所述入光端面垂直，所述第一导引斜面通过所述第一侧面与所述入光端面的第二边缘相连；进一步包括第二侧面，所述第二侧面与所述第一侧面平行，所述第二导引斜面通过所述第二侧面与所述入光端面的第一边缘相连。
当设置了第一侧面和第二侧面后，使得导光板的厚度增大，以便入光端面与液晶面板处于基本水平位置，缩短了挠性印制线路板上的光源与入光端面之间的距离，减少了光线的外泄，更充分的利用现有光源。
在一个优选的实施例中，所述第一角度不小于所述第二角度，尤其当第一角度等于第二角度且为135度时，所述第一导引斜面处构成直角棱镜，根据直角棱镜原理可知，从入光端面射入的光线与第一导引斜面呈45度角射入，此时从入光端面射入的光线在遇到第一导引斜面后全部被第一导引斜面反射进入导光板内，进一步避免了光源的外泄，提高了光源的利用率。
在本发明的一个实施例中，所述入光端面与所述出光面重合，所述第一角度等于135度。
这种导光板，取出光面上的端部的一部分作为入光端面，在入光端面对应的底面处加工一个45度倒角构成，因此，此种导光板更加容易制作加工，且当第一角度等于135度时，所述第一导引斜面处同样构成直角棱镜，根据直角棱镜原理可知，从入光端面射入的光线与第一导引斜面呈45度角射入，此时从入光端面射入的光线在遇到第一导引斜面后全部被第一导引斜面反射进入导光板内，进一步避免了光源的外泄，提高了光源的利用率。同时，这种导光板由于不再具有第一侧面和第二侧面，可直接由平板制成，其结构更坚固，成本更低。
本发明同时提出了一种液晶模组，该液晶模组包括本发明提出的导光板，该液晶模组依次设置有反射片、导光板、中间层、液晶面板，其中，所述导光板的入光端面上设置有光源，所述光源设置在所述液晶面板的挠性印制线路板上。
这种液晶模组，使用了本发明提出的导光板，同时将LED光源设置在液晶面板的挠性印制电路板上，同时挠性印制电路板与液晶面板设置在同一高度上，不再像现有技术中那样使用设置在液晶面板下方的带有固定架的侧置式光源，从而进一步减小了液晶模组的厚度，有利于液晶模组的轻薄化设计。
附图说明
在下文中将基于实施例并参考附图来对本发明进行更详细的描述。其中：
图1为现有技术中5.2”超薄液晶模组10的结构示意图；
图2为本发明第一个实施例的导光板结构示意图；
图3为本发明第二个实施例的导光板结构示意图；
图4为本发明第三个实施例的导光板结构示意图；
图5为本发明第四个实施例的导光板结构示意图；
图6为本发明提出的液晶模组20的结构示意图；
图7为本发明提出的液晶模组30的结构示意图。
在附图中，相同的部件使用相同的附图标记。附图并未按照实际的比例。
具体实施方式
下面将结合附图对本发明作出进一步的说明。
实施例一：
图2为本发明第一个实施例的导光板100，导光板100的截面如图2所示，从图2中可以看出，导光板100包括出光面101，底面102，底面102与出光面101相对设置，在本实施例中，在底面102的左端有一斜面，该斜面构成第一导引斜面104，第一导引斜面104的一端与底面102相交于第一边界111，在第一边界111处，第一导引斜面104与底面102形成第一角度θ1，优选地，第一角度θ1大于90度。
从第一边界111开始且与底面垂直向上构成第一辅助112’，第一辅助112’与出光面101相交于第一边缘112，在出光面101上，自第一边缘112向左至出光面101的左边缘区域构成入光端面103，这里将入光端面103的左边缘称作第二边缘113，即第一边缘112与第二边缘113之间的区域为入光端面103，此时，第一导引斜面104与入光端面103相交于第二边缘113。导光板100的实体为如图2截面在其垂直方向延伸得到。
当入射光线20垂直于入光端面103进入导光板100时，入射光线20直接射入到第一导引斜面104上，经过第一导引斜面104反射后进入导光板，在具体实施中，在第一导引斜面104上设置有凸点，以便射入到第一导引斜面104上的光线更多地反射进入导光板，减少光线折射外泄，尤其当第一角度θ1为135度时，第一导引斜面104处构成全反射棱镜，使得射到第一导引斜面104上的光线全部被反射进入导光板中，不再产生折射，更充分地利用了现有光源，提高了液晶面板的显示亮度。
实施例二：
图3为本发明第二个实施例的导光板200，导光板200的截面如图3所示， 从图3中可以看出，导光板200包括出光面201，底面202，底面202与出光面201相对设置，入射端面203与出光面201平行，在本实施例中，第一导引斜面204的一端与底面202相交于第一边界211，第一导引斜面204的另一端与入光端面203相交于第二边缘213，在第一边界211处，第一导引斜面204与底面202形成第一角度θ2，优选地，第一角度θ2大于90度。
与实施例一不同的是，导光板200还包括第二导引斜面205，第二导引斜面205的一端与出光面201相交于第二边界214，另一端与入光端面203相交于第一边缘212，在第二边界214处，第二导引斜面205与出光面201构成第二角度β2，优选地，β2大于90度，且第一角度θ2不小于第二角度β2，这样设置，可以保证入光端面203的宽度，且便于导光板200的制作生产。导光板200的实体为如图3截面在其垂直方向延伸得到。
当入射光线20垂直于入光端面203进入导光板200时，入射光线20直接射入到第一导引斜面204上，经过第一导引斜面204反射后进入导光板，在具体实施中，经第一导引斜面204反射的光线一部分会射入到第二导引斜面205上，再经第二导引斜面205反射，为了防止第一导引斜面204和第二导引斜面205处的光线折射外泄，在第一导引斜面204和第二导引斜面205上设置有凸点，以便射入到第一导引斜面204和第二导引斜面205上的光线更多地反射进入导光板，减少光线折射外泄，尤其当第一角度θ2和第二角度β2同时为135度时，第一导引斜面204和第二导引斜面205处均构成全反射棱镜，使得射到第一导引斜面204上的光线全部被反射进入导光板中，不再产生折射，有一部分光线会经过第一导引斜面204和第二导引斜面205反复反射，最终在导光板中传播，减少了光线的泄露，更充分地利用了现有光源，提高了液晶面板的显示亮度。
实施例三：
图4为本发明第三个实施例的导光板300，导光板300的截面如图4所示，从图4中可以看出，导光板300包括出光面301，底面302，第一导引斜面304、第二导引斜面305、入射端面303，导光板300与实施例二中的导光板200不同的是，导光板300还包括第一侧面306，第一侧面306与入光端面303垂直相交于第二边缘313，第一侧面306的另一端与第一导引斜面304相交，亦即第一导引斜面304通过第一侧面306与入光端面303的第二边缘313相连。在本实施例中，第一角度θ3和第二角度β3均大于90度，且第一角度θ3不小于第二角 度β3，第一侧面306的设置在一定程度上提高了入光端面303的高度，缩短了挠性印制线路班上的光源与入光端面的距离，更有效地利用光源。导光板300的实体为如图4截面在其垂直方向延伸得到。
本实施例的导光板300，当入射光线20垂直于入光端面303进入导光板300时，入射光线20直接射入到第一导引斜面304上，经过第一导引斜面304反射后进入导光板，在具体实施中，经第一导引斜面304反射的光线一部分会射入到第二导引斜面305上，再经第二导引斜面305反射，为了防止第一导引斜面304和第二导引斜面305处的光线折射外泄，在第一导引斜面304和第二导引斜面305上设置有凸点，以便射入到第一导引斜面304和第二导引斜面305上的光线更多地反射进入导光板，减少光线折射外泄，尤其当第一角度θ3和第二角度β3同时为135度时，第一导引斜面304和第二导引斜面305处均构成全反射棱镜，使得射到第一导引斜面304上的光线全部被反射进入导光板中，不再产生折射，有一部分光线会经过第一导引斜面304和第二导引斜面305反复反射，最终在导光板中传播，减少了光线的泄露，更充分地利用了现有光源，提高了液晶面板的显示亮度。
实施例四：
图5为本发明第四个实施例的导光板400，导光板400的截面如图5所示，从图5中可以看出，导光板400与导光板300所不同的是，导光板400还包括第二侧面407，第二侧面407与入光端面403垂直相交于第一边缘412，另一端与第二导引斜面405相交，亦即第二导引斜面405通过第二侧面407与入光端面403的第一边缘412相连。
导光板400相比于导光板300，进一步提高了入光端面403的高度，更进一步缩短了挠性印制线路板上的光源与入光端面的距离，更有效地利用了光源。导光板400的实体为如图5截面在其垂直方向延伸得到。
本实施例的导光板400，当入射光线20垂直于入光端面403进入导光板400时，入射光线20直接射入到第一导引斜面404上，经过第一导引斜面404反射后进入导光板，在具体实施中，经第一导引斜面404反射的光线一部分会射入到第二导引斜面405上，再经第二导引斜面405反射，为了防止第一导引斜面404和第二导引斜面405处的光线折射外泄，在第一导引斜面404和第二导引斜面405上设置有凸点，以便射入到第一导引斜面404和第二导引斜面405上的光线更多 地反射进入导光板，减少光线折射外泄，尤其当第一角度θ4和第二角度β4同时为135度时，第一导引斜面404和第二导引斜面405处均构成全反射棱镜，使得射到第一导引斜面404上的光线全部被反射进入导光板中，不再产生折射，有一部分光线会经过第一导引斜面404和第二导引斜面405反复反射，最终在导光板中传播，减少了光线的泄露，更充分地利用了现有光源，提高了液晶面板的显示亮度。
本发明同时提出了一种液晶模组，如图6为该液晶模组20的结构示意图，该液晶模组20自下而上依次设置有反射片21、导光板400、中间层24、胶合层241、液晶面板25，在导光板400的入光端面上设置有LED光源232，此处的LED光源232通过固定架231设置在液晶面板25的挠性印制线路板29上，由于挠性印制线路板29与液晶面板25基本布置在同一水平面上，不再像现有技术图1中那样LED光源处于液晶面板的下方，这样就消除了现有技术中的第二间隙，仍旧以5.2”超薄液晶模组为例，当其他材质不变的情况下，由于使用了本发明的导光板400和设置在挠性印制线路板上的LED光源，从而消除了第二间隙，从而使得液晶模组20的整体厚度T3’减小为0.91mm，使液晶模组变得更薄，实现了液晶模组的轻薄化设计。
当液晶模组使用本发明其他实施例中的导光板时，可以在将LED光源制作在挠性印制线路板上时，通过增加LED光源固定架的厚度，使得LED相对于挠性印制线路板增高，以补充导光板入光端面与LED出光面的距离。如图7为使用本发明导光板100的液晶模组30的结构示意图，其中设置在挠性印制线路板上的LED光源332通过固定架331进行了增高，补偿了导光板100的入光端面与LED出光面之间的距离，充分利用了光源，使得液晶模组的厚度更薄，便于实现液晶模组的轻薄化设计。
最后说明的是，以上实施例仅用于说明本发明的技术方案而非限制，尽管参照较佳实施例对本发明进行了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或者等同替换，而不脱离本发明技术方案的宗旨和范围，其均应涵盖在本发明的权利要求范围当中。

Claims (19)

  1. 一种导光板，包括，
    出光面；
    底面，与所述出光面相对设置；
    入光端面，与所述出光面平行设置，包括第一边缘和第二边缘，所述第一边缘靠近所述出光面，所述第二边缘远离所述出光面；
    第一导引斜面，所述第一导引斜面的一端与所述底面相交于第一边界，另一端与所述入光端面的第二边缘相连，所述第一导引斜面与所述底面构成第一角度，第一角度大于90度。
  2. 根据权利要求1所述的导光板，其中，进一步包括第二导引斜面，所述第二导引斜面的一端与所述出光面相交于第二边界，另一端与所述入光端面的第一边缘相连，所述第二导引斜面与所述出光面构成第二角度，第二角度大于90度。
  3. 根据权利要求2所述的导光板，其中，还包括第一侧面，所述第一侧面与所述入光端面垂直，所述第一导引斜面通过所述第一侧面与所述入光端面的第二边缘相连。
  4. 根据权利要求3所述的导光板，其中，进一步包括第二侧面，所述第二侧面与所述第一侧面平行，所述第二导引斜面通过所述第二侧面与所述入光端面的第一边缘相连。
  5. 根据权利要求2所述的导光板，其中，所述第一角度不小于所述第二角度。
  6. 根据权利要求5所述的导光板，其中，所述第一角度等于135度。
  7. 根据权利要求1所述的导光板，其中，所述入光端面与所述出光面重合。
  8. 根据权利要求7所述的导光板，其中，所述第一角度等于135度。
  9. 根据权利要求3所述的导光板，其中，所述第一角度不小于所述第二角度。
  10. 根据权利要求4所述的导光板，其中，所述第一角度不小于所述第二角度。
  11. 一种液晶模组，所述液晶模组自下而上依次设置有反射片、导光板、中间层、胶合层、液晶面板，所述导光板的入光端面上设置有光源，其中，所述导光板包括：
    出光面；
    底面，与所述出光面相对设置；
    入光端面，与所述出光面平行设置，包括第一边缘和第二边缘，所述第一边缘靠近所述出光面，所述第二边缘远离所述出光面；
    第一导引斜面，所述第一导引斜面的一端与所述底面相交于第一边界，另一端与所述入光端面的第二边缘相连，所述第一导引斜面与所述底面构成第一角度，第一角度大于90度。
  12. 根据权利要求11所述的液晶模组，其中，所述导光板进一步包括第二导引斜面，所述第二导引斜面的一端与所述出光面相交于第二边界，另一端与所述入光端面的第一边缘相连，所述第二导引斜面与所述出光面构成第二角度，第二角度大于90度。
  13. 根据权利要求12所述的液晶模组，其中，所述导光板还包括第一侧面，所述第一侧面与所述入光端面垂直，所述第一导引斜面通过所述第一侧面与所述入光端面的第二边缘相连。
  14. 根据权利要求13所述的液晶模组，其中，所述导光板进一步包括第二侧面，所述第二侧面与所述第一侧面平行，所述第二导引斜面通过所述第二侧面与所述入光端面的第一边缘相连。
  15. 根据权利要求14所述的液晶模组，其中，所述第一角度不小于所述第二角度。
  16. 根据权利要求15所述的液晶模组，其中，所述第一角度等于135度。
  17. 根据权利要求11所述的液晶模组，其中，所述入光端面与所述出光面重合。
  18. 根据权利要求17所述的液晶模组，其中，所述第一角度等于135度。
  19. 根据权利要求11所述的液晶模组，其中，所述光源设置在所述液晶面板的挠性印制线路板上。
PCT/CN2016/112424 2016-12-23 2016-12-27 一种导光板及液晶模组 WO2018113001A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/327,216 US20190235149A1 (en) 2016-12-23 2016-12-27 Light guide plate and liquid crystal module

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201611214463.3A CN106772760B (zh) 2016-12-23 2016-12-23 一种导光板及液晶模组
CN201611214463.3 2016-12-23

Publications (1)

Publication Number Publication Date
WO2018113001A1 true WO2018113001A1 (zh) 2018-06-28

Family

ID=58920684

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/112424 WO2018113001A1 (zh) 2016-12-23 2016-12-27 一种导光板及液晶模组

Country Status (3)

Country Link
US (1) US20190235149A1 (zh)
CN (1) CN106772760B (zh)
WO (1) WO2018113001A1 (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109323747A (zh) * 2018-10-22 2019-02-12 中山佳维电子有限公司 电子秤背光模组以及电子秤
DE102018221711B4 (de) * 2018-12-13 2022-02-17 Volkswagen Aktiengesellschaft Anzeigevorrichtung für ein Fahrzeug
CN111650684A (zh) * 2019-03-04 2020-09-11 光耀科技股份有限公司 导光板
CN211554581U (zh) * 2020-03-23 2020-09-22 京东方科技集团股份有限公司 导光板、背光模组及显示装置
CN111708220A (zh) 2020-06-23 2020-09-25 武汉华星光电技术有限公司 背光源、显示基板及显示装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101464594A (zh) * 2007-12-19 2009-06-24 上海天马微电子有限公司 背光模组
CN101922662A (zh) * 2010-08-18 2010-12-22 友达光电股份有限公司 一种发光二极管光源结构
CN202256753U (zh) * 2011-10-10 2012-05-30 靖江市永盛光电科技有限公司 背光源超薄导光板导光结构
CN202598303U (zh) * 2012-04-12 2012-12-12 北京京东方光电科技有限公司 背光模组及显示装置
US8502935B2 (en) * 2007-09-03 2013-08-06 Hitachi Displays, Ltd. Liquid crystal display device comprising a light guide plate with a light radiation portion and a light incident portion joined by a joint surface and having an inclined surface and projecting portions
CN203215569U (zh) * 2013-04-23 2013-09-25 京东方科技集团股份有限公司 一种导光板及显示设备

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3453495B2 (ja) * 1996-07-26 2003-10-06 キヤノン株式会社 密着型イメージセンサ及び画像読取装置
JPH11305225A (ja) * 1998-04-22 1999-11-05 Mitsubishi Chemical Corp 導光素子、面光源装置及びそれを用いた表示装置
JP2000131531A (ja) * 1998-10-27 2000-05-12 Nippon Denyo 導光板
JP4410041B2 (ja) * 2004-06-22 2010-02-03 ローム株式会社 液晶表示装置およびこれを備えた携帯電話機
JP2006269364A (ja) * 2005-03-25 2006-10-05 Mitsubishi Rayon Co Ltd Ｌｅｄ面光源装置
WO2008047442A1 (fr) * 2006-10-20 2008-04-24 Miraial Co., Ltd. Dispositif source de lumière de surface
TWI459089B (zh) * 2011-06-14 2014-11-01 Au Optronics Corp 導光板及背光模組
TWI461797B (zh) * 2011-11-10 2014-11-21 Au Optronics Corp 背光模組
JP5612717B2 (ja) * 2012-03-30 2014-10-22 キヤノン・コンポーネンツ株式会社 照明装置、イメージセンサユニット、画像読取装置、画像形成装置
CN203324888U (zh) * 2013-06-03 2013-12-04 联想(北京)有限公司 终端

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8502935B2 (en) * 2007-09-03 2013-08-06 Hitachi Displays, Ltd. Liquid crystal display device comprising a light guide plate with a light radiation portion and a light incident portion joined by a joint surface and having an inclined surface and projecting portions
CN101464594A (zh) * 2007-12-19 2009-06-24 上海天马微电子有限公司 背光模组
CN101922662A (zh) * 2010-08-18 2010-12-22 友达光电股份有限公司 一种发光二极管光源结构
CN202256753U (zh) * 2011-10-10 2012-05-30 靖江市永盛光电科技有限公司 背光源超薄导光板导光结构
CN202598303U (zh) * 2012-04-12 2012-12-12 北京京东方光电科技有限公司 背光模组及显示装置
CN203215569U (zh) * 2013-04-23 2013-09-25 京东方科技集团股份有限公司 一种导光板及显示设备

Also Published As

Publication number Publication date
CN106772760B (zh) 2019-12-06
US20190235149A1 (en) 2019-08-01
CN106772760A (zh) 2017-05-31

Similar Documents

Publication Publication Date Title
WO2018113001A1 (zh) 一种导光板及液晶模组
CN108132565A (zh) 一种背光模组及显示装置
US9459393B2 (en) Backlight module structure
US9507071B1 (en) Light guide plate and backlight module
KR101373235B1 (ko) 단차 보상 테잎을 포함하는 백라이트 유닛 및 이를 포함하는 ｌｃｄ 모듈
WO2016155050A1 (zh) 背光模组及显示装置
TW201346394A (zh) 背光模組
WO2017054382A1 (zh) 光学元件、导光板、棱镜、背光模组及显示装置
KR20180057942A (ko) 액정표시장치
CN102352980B (zh) 背光模块
WO2019200818A1 (zh) 液晶显示装置
TWI328705B (en) Flat display module
US9513508B2 (en) Backlight unit and liquid crystal display device including the same
US9720273B2 (en) Display device having functional panel
TWI582501B (zh) 光源模組與顯示裝置
US9817175B2 (en) Light guide plate having rounded polygon pattern and liquid crystal display device having thereof
US7768594B2 (en) Liquid crystal display device
US20170003434A1 (en) Backlight module and liquid crystal display
WO2019049505A1 (ja) 発光装置および表示装置
TWI405102B (zh) 背光模組與光學式觸控面板
WO2017063381A1 (zh) 导光板、背光模组和显示装置
KR20150033785A (ko) 표시장치
US9116373B2 (en) Liquid crystal display device including a backlight unit assembly and a bottom cover
JP7249779B2 (ja) 表示装置および電子機器
US20140347603A1 (en) Light guide plate, backlight module, and liquid crystal display device

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16924364

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16924364

Country of ref document: EP

Kind code of ref document: A1