WO2023108510A1 - 背光模组及显示面板 - Google Patents

背光模组及显示面板 Download PDF

Info

Publication number
WO2023108510A1
WO2023108510A1 PCT/CN2021/138564 CN2021138564W WO2023108510A1 WO 2023108510 A1 WO2023108510 A1 WO 2023108510A1 CN 2021138564 W CN2021138564 W CN 2021138564W WO 2023108510 A1 WO2023108510 A1 WO 2023108510A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
main body
backlight module
sub
emitting surface
Prior art date
Application number
PCT/CN2021/138564
Other languages
English (en)
French (fr)
Inventor
田栋
周革革
周伟
袁剑峰
李治福
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 US17/622,477 priority Critical patent/US11982829B2/en
Publication of WO2023108510A1 publication Critical patent/WO2023108510A1/zh

Links

Classifications

    • 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
    • G02F1/133605—Direct backlight including specially adapted reflectors
    • 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
    • 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
    • G02B6/0081—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
    • G02B6/0088—Positioning aspects of the light guide or other optical sheets 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
    • G02B6/0001—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
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133608—Direct backlight including particular frames or supporting means

Definitions

  • the invention relates to the field of display technology, in particular to a backlight module and a display panel.
  • liquid crystal display (LCD) technology is widely used in various fields, such as computers, mobile phones, televisions, and measurement displays.
  • the LCD panel usually includes a liquid crystal display panel main body and a backlight module.
  • the liquid crystal display panel main body includes an array substrate, a color filter substrate, and a liquid crystal layer sandwiched between the two substrates.
  • the backlight module is used to provide a display image for the liquid crystal display panel main body. required light.
  • FIG. 1 is a schematic structural view of the socket of an existing backlight module
  • the backlight module usually includes a frame 11, a flexible circuit board 12, a light source 13, a light guide plate 14, a reflector 15, and an optical film 16 And shading glue 17.
  • the width D of the lamp port of the backlight module is mainly composed of three parts: the distance A between the frame 11 and the light source 13 , the width B of the light source 13 , and the optical path C of the light source 13 .
  • the optical path C is the light mixing distance of the backlight module, that is, the distance between the light-emitting surface of the light source 13 and the effective display area of the display panel, which directly affects the light efficiency of the lamp socket. The better the light effect. Due to the limitation of the structural size of the light source 13 , the distance A between the sealant 11 and the light source 13 and the width B of the light source 13 cannot be further compressed, resulting in that the width D of the lamp port of the backlight module cannot be further compressed.
  • the existing backlight module has the problem of a relatively large lamp opening. Therefore, it is necessary to provide a backlight module and a display panel to improve this defect.
  • Embodiments of the present application provide a backlight module and a display panel, which are used to solve the problem of a large lamp socket width existing in the existing backlight module.
  • An embodiment of the present application provides a backlight module, including:
  • the light guide has a storage cavity
  • the first reflector is arranged on the side of the light guide, and the reflective surface of the first reflector faces the light guide;
  • the light source is arranged in the storage cavity, and the light-emitting surface of the light source faces the reflection surface of the first reflection member.
  • the light guide has a main body and a protruding part disposed below the main body, and the main body and the protruding part enclose to form the storage cavity.
  • the main body includes a light-emitting surface and a first surface that are oppositely arranged, and the protruding portion and the light source are both disposed on a side of the first surface away from the light-emitting surface, and the The light source is disposed on a side of the protruding portion away from the first reflector.
  • the main body portion has a first side facing the first reflector, and the protruding portion has a second side facing the first reflector;
  • the angle between the first side and the second side is greater than or equal to 30° and less than or equal to 180°.
  • the first reflector includes a first portion parallel to the first side and a second portion parallel to the second side.
  • opposite ends of the first side are directly connected to the light-emitting surface and the second side.
  • the main body part and the protruding part are integrally formed.
  • the light-emitting surface includes a first light-emitting surface and a second light-emitting surface that are on the same plane
  • the main body includes:
  • the first sub-body part includes a first light-emitting surface and a first surface opposite to the first light-emitting surface;
  • the second sub-body part is located on the side of the first sub-body part close to the first reflector, and the second sub-body part has the second light emitting surface, the first side surface and the first The side faces are opposite to the second surface of the first sub-main body, the opposite end of the second light-emitting surface is directly connected to the first side and the second surface, and the protrusion is located on the second surface.
  • the lower part of the sub-main part is integrally formed with the second sub-main part.
  • the first side is directly connected to the light-emitting surface and the first surface, and the protrusion is fixedly connected to the first surface.
  • the backlight module further includes a frame, the light guide and the light source are both disposed in the frame, and the first reflector is disposed near the light guide to the frame side.
  • a side frame of the frame close to the protruding portion protrudes outward to form a wedge-shaped structure adapted to the first side and the second side, and the main body is close to the One end of the side frame and at least part of the protruding part protrude into the wedge-shaped structure.
  • the light guide further includes a second reflector, and the second reflector is disposed between the light source and the first surface.
  • the embodiment of the present application also provides a display panel, the display panel includes a display panel main body and a backlight module, the display panel main body is arranged on the light emitting side of the backlight module, and the backlight module includes:
  • the light guide has a storage cavity
  • the first reflector is arranged on the side of the light guide, and the reflective surface of the first reflector faces the light guide;
  • the light source is arranged in the storage cavity, and the light-emitting surface of the light source faces the reflection surface of the first reflection member.
  • the light guide has a main body and a protruding part disposed below the main body, and the main body and the protruding part enclose to form the storage cavity.
  • the main body includes a light-emitting surface and a first surface that are oppositely arranged, and the protruding portion and the light source are both disposed on a side of the first surface away from the light-emitting surface, and the The light source is disposed on a side of the protruding portion away from the first reflector.
  • the main body portion has a first side facing the first reflector, and the protruding portion has a second side facing the first reflector;
  • the angle between the first side and the second side is greater than or equal to 30° and less than or equal to 180°.
  • the first reflector includes a first portion parallel to the first side and a second portion parallel to the second side.
  • opposite ends of the first side are directly connected to the light-emitting surface and the second side.
  • the main body part and the protruding part are integrally formed.
  • the light-emitting surface includes a first light-emitting surface and a second light-emitting surface that are on the same plane
  • the main body includes:
  • the first sub-body part includes a first light-emitting surface and a first surface opposite to the first light-emitting surface;
  • the second sub-body part is located on the side of the first sub-body part close to the first reflector, and the second sub-body part has the second light emitting surface, the first side surface and the first The side faces are opposite to the second surface of the first sub-main body, the opposite end of the second light-emitting surface is directly connected to the first side and the second surface, and the protrusion is located on the second surface.
  • the lower part of the sub-main part is integrally formed with the second sub-main part.
  • the embodiments of the present application provide a backlight module and a display panel
  • the display panel includes a display panel main body and the backlight module
  • the backlight module includes a light guide, a first reflector A component and a light source
  • the first reflector is arranged on the side of the light guide
  • the reflective surface of the first reflector faces the light guide
  • the light source is arranged in the storage cavity of the light guide
  • the light-emitting surface of the light source faces the reflective surface of the first reflector. After the light emitted by the light source exits the light guide, it can pass through the reflective surface of the first reflector and be reflected back into the light guide, so that the light mixing distance of the backlight module does not vary. Therefore, while reducing the width of the lamp port of the backlight module, the lamp port of the backlight module can have good light effect.
  • FIG. 1 is a schematic structural view of a lamp socket of an existing backlight module
  • FIG. 2 is a schematic diagram of a partial structure of a display panel provided by an embodiment of the present application
  • FIG. 3 is a schematic structural diagram of the first backlight module provided by the embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a second backlight module provided in an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a third backlight module provided by an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a fourth backlight module provided by an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a fifth backlight module provided by an embodiment of the present application.
  • Embodiments of the present application provide a backlight module, a display panel, and an electronic device, where the electronic device includes the display panel.
  • the electronic device can be a mobile terminal, such as a smart phone, a tablet computer, a notebook computer, etc.
  • the electronic device can also be a wearable terminal, such as a smart watch, a smart bracelet, smart glasses, an augmented reality device, etc.
  • the electronic device may also be a fixed terminal, such as a desktop computer, a television, and the like.
  • FIG. 2 is a schematic diagram of a partial structure of a display panel provided in an embodiment of the present application.
  • the display panel 100 includes a display panel body 20 and a backlight module 30.
  • the display panel body 20 is a liquid crystal display panel.
  • the display panel main body 20 is disposed on the light emitting side of the backlight module 30 , and the display panel main body 20 can be attached to the backlight module 30 through optical glue.
  • the display panel 100 also includes a flexible printed circuit board 40, one end of the flexible printed circuit board 40 is connected to the display panel main body 20, and the other end of the flexible printed circuit board 40 can be configured to bypass the side of the backlight module 30 and extend to The bottom of the backlight module 30 .
  • the backlight module 30 includes a light guide 31, a first reflector 32 and a light source 33, the first reflector 32 is arranged on the side of the light guide 31, and the reflective surface 320 of the first reflector 32 faces the light guide 31.
  • the light guide 31 has a receiving cavity 310 , the light source 33 is disposed in the receiving cavity 310 , and the light emitting surface 330 of the light source 33 faces the reflecting surface 320 of the first reflecting member 32 .
  • the light guide 31 may be a light guide plate
  • the light source 33 may be a point light source or a surface light source
  • the light source 33 may be disposed at the bottom of at least one end of the light guide 31 .
  • the light source 33 may include one or more light emitting diodes (light emitting diode, LED).
  • the type of light source 33 is not limited to the above-mentioned light-emitting diodes, and may also include mini light-emitting diodes (mini LED) or micro light emitting diode (micro LED).
  • the arrows in Figure 2 indicate the propagation direction of the light emitted by the light source 33.
  • the light source 33 is arranged in the storage cavity 310 at the bottom of the light guide 31, and the light emitting surface 330 of the light source 33 is directed towards the first reflector.
  • the light emitted from the light-emitting surface 330 of the light source 33 enters the light guide 31 from the reflective surface 320 of the light source 32, and then reaches the side of the light guide 31 close to the first reflector 32. After being reflected by the reflective surface 320 , it re-enters the light guide 31 , and is transmitted from the near light source end of the light guide 31 to the far light source end of the light guide 31 .
  • the light source 33 Since the light source 33 is arranged in the storage cavity 310 at the bottom of the light guide 31, the light emitted by the light source 33 can be reflected into the light guide 31 above the light source 33 through the first reflector 32, so that the light guide above the light source 33
  • the optical element 31 also has the ability to diffuse light, and the existence of the light source 33 will not affect the width D of the lamp opening of the backlight module 30, so the width D of the lamp opening of the backlight module 30 only includes the optical path C, and the frame and The distance E between the light guides 31 .
  • the width D of the lamp socket of the backlight module 30 Compared with the minimum value of the width of the lamp socket in the existing backlight module shown in FIG. 1 is still greater than 1.8 millimeters, the width D of the lamp socket of the backlight module 30 provided by the embodiment of the present application is smaller, and the width D of the lamp socket is smaller.
  • the minimum value of can be less than 1 mm, and at the same time, the light mixing distance of the light source 33 is extended by using the light guide 31 and the first reflector 32, so that the optical path C of the light source 33 will not be due to the fact that the light source 33 is arranged at the bottom of the light guide 31 so that the backlight module 30 has a good light effect at the lamp port.
  • the light guide 31 has a main body 311 and a protruding part 312 disposed below the main body 311 , the protruding part 312 extends from the bottom of the main body 311 along the thickness of the main body 311 The main body portion 311 and the protruding portion 312 are enclosed to form the storage cavity 310 .
  • FIG. 3 which is a schematic structural diagram of the first backlight module provided in the embodiment of the present application
  • the dotted line in the horizontal direction divides the light guide 31 into a main body 311 and a protruding portion 312 , the protruding portion 312 is connected to the bottom of the main body portion 311 .
  • the main body portion 311 includes a light-emitting surface 3111 and a first surface 3112 that are oppositely disposed, and the protruding portion 312 and the light source 33 are both disposed on the side of the first surface 3112 away from the light-emitting surface 3111.
  • the light source 33 is disposed on a side of the protruding portion 312 away from the first reflector 32 .
  • the first surface 3112 of the main body 311 and the protruding portion 312 surround the side facing the light source 33 to form the storage cavity 310 , and the light source 33 can be disposed in the storage cavity 310 Inside, the side of the protruding portion 312 facing the light emitting surface 330 of the light source 33 is the light incident surface of the light guide 31 , and the light emitted from the light emitting surface 330 of the light source 33 enters the light guide 31 through the protruding portion 312 .
  • the side of the main body 311 facing the first reflector 32 has a first side 3113
  • the side of the protruding portion 312 facing the first reflector 32 has a second side 3121
  • the first side 3113 and the second side 3121 An included angle ⁇ is formed between them, and the included angle ⁇ is greater than or equal to 30° and less than or equal to 180°.
  • the opposite end of the first side 3113 is directly connected to the light-emitting surface 3111 and the second side 3121 of the main body 311 , and the second side 3121 is also connected to the protrusion 312 . bottom surface.
  • the first reflector 32 is disposed on the first side 3113 and the second side 3121 , so that light can be reflected back into the light guide 31 through the first side 3113 and the second side 3121 .
  • the angle ⁇ between the first side 3113 and the second side 3121 is 120°, so that the incident light from the protruding portion 312 can be reflected into the main body 311 to improve the backlight module 30.
  • the included angle ⁇ between the first side 3113 and the second side 3121 is not limited to 120°, but can also be 30°, 50°, 60°, 80°, 100°, 140°, 160° or 180°. °, etc., only need to be greater than or equal to 30° and less than or equal to 180°.
  • the first reflector 32 includes a first portion 321 and a second portion 322, the first portion 321 is arranged parallel to the first side 3113, the second portion 322 is parallel to the second side 3121 Arranged in parallel, the first part 321 and the second part 322 of the first reflector 32 can form the same angle as the included angle ⁇ , so that the light irradiated to the first side 3113 or the second side 3121 can be reflected and guided back. In the light part 31.
  • the first part 321 and the second part 322 of the first reflector 32 can be an integrally formed structure, or a segmented structure, and the first reflector 32 can be directly sprayed or evaporated
  • the reflective coating formed on the first side 3113 and the second side 3121 can also be made of metal or non-metallic material and bonded to the reflective sheet or reflective plate on the first side 3113 and the second side 3121 by optical glue .
  • part of the light emitted by the light source 33 can enter the protruding portion 312 through the light-incident surface on the protruding portion 312 , and pass through the The first reflector 32 is reflected into the main body part 311; another part of the light emitted by the light source 33 can enter the protruding part 312 through the light incident surface of the protruding part 312, and irradiate to the flexible circuit at the bottom of the protruding part 312 Board 34, the surface of the flexible circuit board 34 close to the light guide 31 can be provided with a reflective coating, the reflective coating can reflect the light irradiated on the surface of the flexible circuit board 34 back into the protruding part 312, and then pass through the protruding part 312.
  • the first reflector 32 on the side of the part 312 reflects the part of the light into the main part 311 .
  • the reflective coating on the surface of the flexible circuit board 34 can be white ink, so that the light irradiated to the bottom of the protruding portion 312 can be reflected back to the guide by using the white ink not to absorb light and having a better ability to reflect light.
  • the light utilization efficiency of the backlight module 30 is improved.
  • the backlight module 30 further includes a second reflector 35 disposed at the bottom of the main body 311 and between the first surface of the main body 311 and the light source.
  • the second reflector 35 is used to reflect the light irradiated on the bottom of the main body 311 back to the main body 311 , so that the light can continue to propagate in the main body 311 of the light guide 31 , thereby improving the light utilization efficiency of the backlight module 30 .
  • the second reflector 35 may be a reflector or plate made of metal material, and the second reflector 35 may be directly attached to the first surface 3112 of the main body 311 by optical glue.
  • the second reflector 35 is not limited to reflective sheets made of metal materials or non-metal materials, but also can be reflective coatings formed by metal or non-metal materials with reflection, and the reflective coatings can be directly sprayed or evaporated. plated on the first surface 3112 of the main body portion 311 .
  • the main body 311 and the protruding part 312 of the light guide 31 can be integrally formed by injection molding process, which can reduce the loss of light in the process of light entering the main body 311 from the protruding part 312, thus can Improve the light utilization rate of the backlight module 30 .
  • FIG. 4 is a schematic structural diagram of the second backlight module provided by the embodiment of the present application.
  • the main body part 311 and the protruding part 312 are two independent parts.
  • the main body part 311 The opposite end of the first side surface 3113 is directly connected to the light emitting surface 3111 and the first surface 3112 of the main body 311 , and the protrusion 312 is fixedly connected to the first surface 3112 of the main body 311 .
  • the protruding part 312 can be attached to the bottom surface of the main body part 311 through the high-transparency fixing glue 315.
  • the light transmittance of the fixing glue 315 should be greater than or equal to 98%, so as to reduce light loss during the process of light entering the main body 311 from the protruding portion 312 .
  • the light-emitting surface 3111 of the main body 311 includes a first light-emitting surface on the same plane.
  • the main body 311 has a first sub-main body 311a and a second sub-main body 311b, the first sub-main body 311a and the second sub-main body 311b are two independent light guides, the second A sub-body part 311a has the first light-emitting surface 3111a, the first surface 3112 and the third surface 3114 opposite to the first light-emitting surface 3111a, and the opposite end of the third surface 3114 is directly connected to the first surface. a light emitting surface 3111a and the first surface 3112 .
  • the second sub-body part 311b is disposed on the side of the first sub-body part 311a close to the first reflector 32, and the second sub-body part 311b has the second light-emitting surface 3111b, the first side surface 3113 and the first sub-body part 3113.
  • the first side 3113 is disposed opposite to and facing the second surface 3122 of the first sub-main part 311a, the first side 3113 is located on the side of the second sub-main part 311b close to the first reflector 32, and the second light-emitting surface
  • the opposite end of 3111b is directly connected to the first side 3113 and the second surface 3122
  • the second side 3121 is located on the side of the protrusion 312 close to the first reflector 32
  • the other end of the first side 3113 is directly connected to
  • the second side 3121 , and the other end of the second side 3121 can also be directly connected to the bottom surface of the protrusion 312 .
  • the protruding part 312 is disposed under the second sub-body part 311b, and can be integrally formed with the second sub-body part 311b.
  • the third surface 3114 of the first sub-main part 311a and the second surface 3122 of the second sub-main part 311b can be bonded by the same high-transparency fixing glue 315 as shown in FIG. This reduces the amount of light lost during the process of light entering the first sub-body portion 311a from the second sub-body portion 311b.
  • the top of the second sub-main part 311b is flush with the top of the first sub-main part 311a, that is, the first light-emitting surface 3111a of the first sub-main part 311a and the second light-emitting surface 3111b of the second sub-main part 311b are in the same position.
  • the sum of the thicknesses of the second sub-main part 311b and the protruding part 312 is greater than the thickness of the first sub-main part 311a, so that the bottom of the protruding part 312 exceeds the bottom of the first sub-main part 311a.
  • the light source 33 is arranged at the bottom of the first sub-body part 311a, and is located on the side where the part of the protruding part 312 beyond the first sub-body part 311a is away from the first reflector 32, and the part of the protruding part 312 beyond the first sub-body part 311a Part of the side facing the light source 33 is the light incident surface of the light guide 31 .
  • the bottom of the light guide 31 can be a flat surface, and the storage cavity 310 can be arranged on the light guide.
  • the bottom of the light guide 31, the light incident surface of the light guide 31 is the inner wall surface of the storage cavity 310, the light source 33 is embedded in the storage cavity 310, the second reflector 35 can be arranged on the bottom of the light guide 31, the light source 33 can enter the light guide 31 through the inner wall surface of the storage cavity 310 along the direction toward the first reflector 32, and reflect back into the light guide 31 after passing through the first reflector 32, and pass through the second reflector 32. Under the reflection of the component 35, it continues to propagate in the light guide 31 to the far light source end.
  • the storage cavity 310 can be integrally formed with the light guide 31 , and when the light guide 31 is formed by injection molding, the storage cavity 310 can be formed at the bottom of the light guide 31 at the same time, so that the light guide 31 can be reduced. process difficulty and the difficulty of assembling the light source 33, and at the same time, by embedding the light source 33 into the storage cavity 310 at the bottom of the light guide 31, the thickness of the backlight module 30 occupied by the light source 33 can be omitted, thereby reducing the size of the backlight module 30. thickness.
  • the shape of the storage cavity 310 is adapted to the shape of the light source 33 .
  • the storage cavity 310 may be a square groove.
  • the storage cavity 310 may be a long groove.
  • the backlight module 30 also includes a frame 36, the light guide 31 and the light source 33 are both arranged in the frame 36, and the first reflector 32 is arranged near the light guide 31. side of the frame.
  • the frame 36 includes a bottom frame 361 laid flat and a side frame 362 formed by extending the peripheral edges of the bottom frame 361 along the thickness direction of the bottom frame.
  • the bottom frame 361 and the side frame 362 enclose
  • the formed accommodating space is used for accommodating the light guide 31 and the light source 33 .
  • the side frame 362 has a straight surface, and the side frame 362 and the bottom frame 361 are perpendicular to each other.
  • the side frame 362 of the frame 36 close to the protruding portion protrudes outwards to form a frame that fits with the first side 3113 and the second side 3121 .
  • the end of the main body portion 311 close to the side frame 362 and the protruding portion 312 at least partly protrude into the wedge-shaped structure.
  • the backlight module 30 also includes a light-shielding glue 38, which can be arranged on the side of the optical film 37 away from the light guide 31, and covers the area of the backlight module 30 corresponding to the non-display area of the main body of the display panel. , so as to shield the components such as the light guide 31 , the first reflector 32 , and the light source 33 in the backlight module 30 , so as to avoid light leakage of the backlight module 30 in the region of the lamp port.
  • a light-shielding glue 38 which can be arranged on the side of the optical film 37 away from the light guide 31, and covers the area of the backlight module 30 corresponding to the non-display area of the main body of the display panel. , so as to shield the components such as the light guide 31 , the first reflector 32 , and the light source 33 in the backlight module 30 , so as to avoid light leakage of the backlight module 30 in the region of the lamp port.
  • a part of the light-shielding glue 38 can be attached to the top of the side frame 362, and the orthographic projection of the light-shielding glue 38 on the bottom frame 361 covers one end of the light guide 31 provided with the light source 33.
  • Part 31 protrudes into the wedge-shaped structure of the side frame 362, which can increase the area covered by the light-shielding glue 38 to cover the light guide 31, thereby reducing the width of the lamp port of the backlight module.
  • FIG. 7 is a schematic structural diagram of a fifth backlight module provided in the embodiment of the present application. It should be noted that the structure of the backlight module shown in FIG. 7 is the same as that shown in FIG. The structures of the backlight modules shown are substantially the same, the difference is that in the fifth backlight module shown in FIG.
  • the bottom frame 361 and the side frame 362 of the frame 36 may be integrally formed.
  • the bottom frame 361 and the side frame 362 of the frame 36 can be two independent parts, and the fixed connection method between the bottom frame 361 and the side frame 362 can include but not limited to glue, snap fit or thread connection etc.
  • the material of the frame 36 is metal, so that the frame 36 has good rigidity, which prevents the deformation of the frame 36 when it is subjected to an external force and causes damage to the internal light source 33, light guide 31 and other components.
  • the first reflector 32 may be a reflective coating, and the reflective coating may be directly formed on the inner wall of the side frame near the light guide 31 by spraying or vapor deposition.
  • the first reflector 32 may also be a reflector or reflector plate made of metal or non-metallic material, and the first reflector 32 may be glued to the side frame close to the light guide 31 on the inner wall.
  • the backlight module 30 further includes an optical film 37 , and the optical film 37 is disposed on the light emitting side of the light guide 31 .
  • the optical film 37 may include but not limited to at least one of optical films such as a diffusion film, an incremental film, or a prism film.
  • the backlight module 30 may further include a supporting layer 39, which is arranged on the flexible circuit board 34 and used to support the second reflection piece 35.
  • the support layer 39 can be made of double-sided tape, foam rubber or other soft rubber materials.
  • Embodiments of the present application provide a backlight module, a display panel, and an electronic device
  • the electronic device includes the display panel
  • the display panel includes a display panel main body and the backlight module
  • the backlight module includes a light guide A piece, a reflector, and a light source
  • the reflector is arranged on the side of the light guide
  • the reflective surface of the reflector faces the light guide
  • the light source is arranged on the bottom of the light guide to make the light source and the light guide
  • the light guide is overlapped in the thickness direction of the backlight module to reduce the width of the lamp port of the backlight module.
  • the bottom of the light guide has a light incident surface, and the light incident surface of the light guide is facing the light emitting surface of the light source.
  • the light-emitting surface of the light source faces the reflective surface of the reflective member. After the light emitted by the light source exits from the bottom of the light guide member, it can be reflected back into the light guide member through the reflective surface of the reflective member, so that the light mixing distance of the backlight module does not vary. Therefore, while reducing the width of the lamp port of the backlight module, the lamp port of the backlight module can have good light effect.

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)
  • Planar Illumination Modules (AREA)

Abstract

一种背光模组（30）及显示面板（100），该显示面板（100）包括显示面板主体（20）和背光模组（30），背光模组（30）包括导光件（31）、第一反射件（32）和光源（33），通过将光源（33）设置于导光件（31）的收纳腔（310）内，以此减小背光模组（30）的灯口的宽度，并改善背光模组（30）的灯口的光效。

Description

背光模组及显示面板 技术领域
本发明涉及显示技术领域，尤其涉及一种背光模组及显示面板。
 背景技术
由于工作电压低、功耗小、显示方式灵活、辐射低等优点，液晶显示（liquid crystal display，LCD）技术广泛应用于各种领域，如计算机、手机、电视以及测量显示等领域。LCD面板通常包括液晶显示面板主体和背光模组，液晶显示面板主体包括阵列基板、彩膜基板以及夹设于两基板之间的液晶层，背光模组用于为液晶显示面板主体提供显示图像所需的光线。
 技术问题
如图1所示，图1为现有的背光模组的灯口的结构示意图，背光模组通常包括框架11、柔性电路板12、光源13、导光板14、反射片15、光学膜片16以及遮光胶17。背光模组的灯口的宽度D主要由框架11到光源13之间的距离A、光源13的宽度B、光源13的光程C三部分组成。其中，光程C为背光模组的混光距离，即光源13的发光面到显示面板的有效显示区之间的距离，其直接影响灯口的光效，C的数值越大，灯口的光效越好。由于光源13结构尺寸的限制，目前框胶11到光源13之间的距离A以及光源13的宽度B均无法再进一步压缩，导致背光模组的灯口的宽度D无法进一步压缩。
综上所述，现有背光模组存在灯口的宽度较大的问题。故，有必要提供一种背光模组及显示面板来改善这一缺陷。
 技术解决方案
本申请实施例提供一种背光模组及显示面板，用于解决现有背光模组存在的灯口宽度较大的问题。
本申请实施例提供一种背光模组，包括：
导光件，具有收纳腔；
第一反射件，设置于所述导光件的侧边，所述第一反射件的反射面朝向所述导光件；以及
光源，设置于所述收纳腔内，所述光源的发光面朝向所述第一反射件的所述反射面。
根据本申请一实施例，所述导光件具有主体部和设置于所述主体部下方的凸出部，所述主体部与所述凸出部围合形成所述收纳腔。
根据本申请一实施例，所述主体部包括相对设置的出光面和第一表面，所述凸出部和所述光源均设置于所述第一表面背离所述出光面的一侧，所述光源设置于所述凸出部背离所述第一反射件的一侧。
根据本申请一实施例，所述主体部具有朝向所述第一反射件的第一侧面，所述凸出部具有朝向所述第一反射件的第二侧面；
其中，所述第一侧面与所述第二侧面之间的夹角大于或等于30°且小于或等于180°。
根据本申请一实施例，所述第一反射件包括与所述第一侧面平行的第一部和与所述第二侧面平行的第二部。
根据本申请一实施例，所述第一侧面的相对端直接连接于所述出光面和所述第二侧面。
根据本申请一实施例，所述主体部与所述凸出部一体成型。
根据本申请一实施例，所述出光面包括处于同一平面的第一出光面和第二出光面，所述主体部包括：
第一子主体部，所述第一子主体部包括第一出光面及与所述第一出光面相对的第一表面；以及
第二子主体部，位于所述第一子主体部靠近所述第一反射件的一侧，所述第二子主体部具有所述第二出光面、所述第一侧面以及所述第一侧面相对设置并朝向所述第一子主体部的第二表面，所述第二出光面的相对端直接连接于所述第一侧面和所述第二表面所述凸出部位于所述第二子主体部的下方并与所述第二子主体部一体成型。
根据本申请一实施例，所述第一侧面直接连接于所述出光面和所述第一表面，所述凸出部固定连接于所述第一表面。
根据本申请一实施例，所述背光模组还包括框架，所述导光件和所述光源均设置于所述框架内，所述第一反射件设置于所述导光件靠近所述框架的一侧。
根据本申请一实施例，所述框架靠近所述凸出部的一侧框向外凸出形成与所述第一侧面和所述第二侧面适配的楔形结构，所述主体部靠近所述侧框的一端以及所述凸出部的至少部分伸入至所述楔形结构内。
根据本申请一实施例，所述导光件还包括第二反射件，所述第二反射件设置于所述光源与所述第一表面之间。
本申请实施例还提供一种显示面板，所述显示面板包括显示面板主体和背光模组，所述显示面板主体设置于所述背光模组的出光侧，所述背光模组包括：
导光件，具有收纳腔；
第一反射件，设置于所述导光件的侧边，所述第一反射件的反射面朝向所述导光件；以及
光源，设置于所述收纳腔内，所述光源的发光面朝向所述第一反射件的所述反射面。
根据本申请一实施例，所述导光件具有主体部和设置于所述主体部下方的凸出部，所述主体部与所述凸出部围合形成所述收纳腔。
根据本申请一实施例，所述主体部包括相对设置的出光面和第一表面，所述凸出部和所述光源均设置于所述第一表面背离所述出光面的一侧，所述光源设置于所述凸出部背离所述第一反射件的一侧。
根据本申请一实施例，所述主体部具有朝向所述第一反射件的第一侧面，所述凸出部具有朝向所述第一反射件的第二侧面；
其中，所述第一侧面与所述第二侧面之间的夹角大于或等于30°且小于或等于180°。
根据本申请一实施例，所述第一反射件包括与所述第一侧面平行的第一部和与所述第二侧面平行的第二部。
根据本申请一实施例，所述第一侧面的相对端直接连接于所述出光面和所述第二侧面。
根据本申请一实施例，所述主体部与所述凸出部一体成型。
根据本申请一实施例，所述出光面包括处于同一平面的第一出光面和第二出光面，所述主体部包括：
第一子主体部，所述第一子主体部包括第一出光面及与所述第一出光面相对的第一表面；以及
第二子主体部，位于所述第一子主体部靠近所述第一反射件的一侧，所述第二子主体部具有所述第二出光面、所述第一侧面以及所述第一侧面相对设置并朝向所述第一子主体部的第二表面，所述第二出光面的相对端直接连接于所述第一侧面和所述第二表面所述凸出部位于所述第二子主体部的下方并与所述第二子主体部一体成型。
 有益效果
本揭示实施例的有益效果：本申请实施例提供一种背光模组及显示面板，所述显示面板包括显示面板主体和所述背光模组，所述背光模组包括导光件、第一反射件和光源，所述第一反射件设置于所述导光件的侧边，所述第一反射件的反射面朝向所述导光件，通过将光源设置于导光件的收纳腔内，光源的发光面朝向第一反射件的反射面，光源发出的光线从导光件出射后，可以通过第一反射件的反射面再反射回导光件内，使得背光模组的混光距离不受影响，从而在减小背光模组的灯口的宽度的同时，能够使背光模组的灯口具有良好的光效。
 附图说明
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是揭示的一些实施例，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，还可以根据这些附图获得其他的附图。
图1为现有的背光模组的灯口的结构示意图；
图2为本申请实施例提供的显示面板的局部结构示意图；
图3为本申请实施例提供的第一种背光模组的结构示意图；
图4为本申请实施例提供的第二种背光模组的结构示意图；
图5为本申请实施例提供的第三种背光模组的结构示意图；
图6为本申请实施例提供的第四种背光模组的结构示意图；
图7为本申请实施例提供的第五种背光模组的结构示意图。
 本发明的实施方式
以下各实施例的说明是参考附加的图示，用以例示本揭示可用以实施的特定实施例。本揭示所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本揭示，而非用以限制本揭示。在图中，结构相似的单元是用以相同标号表示。
下面结合附图和具体实施例对本揭示做进一步的说明：
本申请实施例提供一种背光模组、显示面板及电子装置，所述电子装置包括所述显示面板。在本申请实施例中，电子装置可以是移动终端，例如智能手机、平板电脑、笔记本电脑等，电子装置也可以是可穿戴式终端，例如智能手表、智能手环、智能眼镜、增强现实设备等，电子装置还可以是固定终端，例如台式电脑、电视等。
如图2所示，图2为本申请实施例提供的显示面板的局部结构示意图，所述显示面板100包括显示面板主体20和背光模组30，所述显示面板主体20为液晶显示面板，所述显示面板主体20设置于所述背光模组30的出光侧，显示面板主体20可以通过光学胶与背光模组30贴合。
显示面板100还包括柔性印刷电路板40，柔性印刷电路板40的一端与显示面板主体20连接，柔性印刷电路板40的另一端可以配置成绕过所述背光模组30的侧边并延伸至所述背光模组30的底部。
进一步的，背光模组30包括导光件31、第一反射件32以及光源33，第一反射件32设置于导光件31的侧边，第一反射件32的反射面320朝向导光件31。导光件31的具有收纳腔310，光源33设置于所述收纳腔310内，光源33的发光面330朝向第一反射件32的反射面320。
在本申请实施例中，导光件31可以为导光板，光源33可以为点光源或面光源，光源33可以设置于导光件31的至少一端的底部。光源33可以包括一个或者多个发光二极管（light emitting diode, LED）。在实际应用中，光源33的种类不仅限于上述的发光二极管，也可以包括迷你发光二极管（mini LED）或微发光二极管（micro LED）。
如图2所示，图2中箭头所示的为光源33发出的光线的传播方向，光源33设置于导光件31底部的收纳腔310内，并将光源33的发光面330朝向第一反射件32的反射面320，从光源33的发光面330发出的光线射入至导光件31内，然后抵达导光件31靠近第一反射件32的一侧边，经由第一反射件32的反射面320反射后，重新射入至导光件31内，并由导光件31的近光源端传递至导光件31的远光源端。
由于光源33设置在导光件31的底部的收纳腔310内，光源33发出的光线可以通过第一反射件32将光线反射至光源33上方的导光件31中，使得位于光源33上方的导光件31同样具备扩散光线的能力，且光源33的存在并不会影响背光模组30的灯口的宽度D，因此背光模组30的灯口的宽度D只包含光程C、以及框架与导光件31之间的距离E。
相较于图1所示的现有背光模组中灯口的宽度的最小值仍大于1.8毫米，本申请实施例提供的背光模组30的灯口的宽度D更小，灯口的宽度D的最小值可以小于1毫米，同时利用导光件31以及第一反射件32延长了光源33的混光距离，使得光源33的光程C并不会因为光源33设置在导光件31的底部而减小，使得背光模组30在灯口具有良好的光效。
进一步的，所述导光件31具有主体部311和设置于所述主体部311下方的凸出部312，所述凸出部312自所述主体部311的底部沿所述主体部311的厚度方向延伸形成，所述主体部311与所述凸出部312围合形成所述收纳腔310。
在一实施例中，如图3所示，图3为本申请实施例提供的第一种背光模组的结构示意图，水平方向的虚线将导光件31分割成主体部311和凸出部312，凸出部312连接于主体部311的底部。
所述主体部311包括相对设置的出光面3111和第一表面3112，所述凸出部312和所述光源33均设置于所述第一表面3112背离所述出光面3111的一侧，所述光源33设置于所述凸出部312背离所述第一反射件32的一侧。
如图3所示，所述主体部311的第一表面3112与凸出部312朝向所述光源33的一侧围合形成所述收纳腔310，所述光源33可以设置于所述收纳腔310内，凸出部312朝向光源33的发光面330的一侧面为导光件31的入光面，从光源33的发光面330发出的光线，通过凸出部312射入至导光件31内。
进一步的，主体部311朝向第一反射件32的一侧具有第一侧面3113，凸出部312朝向第一反射件32的一侧具有第二侧面3121，第一侧面3113和第二侧面3121之间形成夹角α，夹角α大于或等于30°且小于或等于180°。
在其中一个实施例中，如图3所示，第一侧面3113的相对端直接连接于主体部311的所述出光面3111和第二侧面3121，第二侧面3121还连接于凸出部312的底面。第一反射件32设置于第一侧面3113和第二侧面3121上，以此使得光线可以通过第一侧面3113和第二侧面3121处反射回导光件31内。
在本申请实施例中，第一侧面3113和第二侧面3121之间的夹角α为120°，如此可以将由凸出部312入射的光线反射至主体部311中，以此提高背光模组30在灯口的光效。在实际应用中，第一侧面3113和第二侧面3121之间的夹角α不仅限于120°，也可以为30°、50°、60°、80°、100°、140°、160°或180°等，仅需要大于或等于30°且小于或等于180°。
进一步的，所述第一反射件32包括第一部321和第二部322，所述第一部321与所述第一侧面3113平行设置，所述第二部322与所述第二侧面3121平行设置，第一反射件32的第一部321和第二部322之间能够形成与夹角α相同的角度，以使照射至第一侧面3113或第二侧面3121的光线能够被反射回导光件31中。
在本申请实施例中，所述第一反射件32的第一部321和第二部322可以是一体成型结构，也可以是分段式结构，第一反射件32可以是直接喷涂或蒸镀形成于第一侧面3113和第二侧面3121上的反射涂层，也可以由金属或非金属材料制成并通过光学胶贴合于第一侧面3113和第二侧面3121上的反射片或反射板。
图3所示的背光模组中，光源33发出的部分光线可以通过凸出部312上的入光面射入至凸出部312中，并通过设置于凸出部312背离光源33一侧的第一反射件32反射至主体部311中；光源33发出的另一部分光线可以通过凸出部312的入光面射入至凸出部312中，并照射至位于凸出部312底部的柔性电路板34，柔性电路板34靠近导光件31的一侧表面可以设置反射涂层，该反射涂层可以将照射至柔性电路板34表面的光线反射回凸出部312内，再通过位于凸出部312侧边的第一反射件32再将该部分光线反射至主体部311中。
在一实施例中，柔性电路板34表面的反射涂层可以为白色油墨，以此利用白色油墨不吸光且具有较好的反射光线的能力，将照射至凸出部312底部的光线反射回导光件31内，以此提高背光模组30的光线利用率。
所述背光模组30还包括第二反射件35，所述第二反射件35设置于所述主体部311的底部，并且位于主体部311的第一表面与光源之间。第二反射件35用于将照射至主体部311底面的光线反射回主体部311，以使光线能够继续在导光件31的主体部311中传播，从而提高背光模组30的光线利用率。
在本申请实施例中，第二反射件35可以为金属材料制成的反射片或反射板，第二反射件35可以通过光学胶直接贴合于主体部311的第一表面3112上。在实际应用中，第二反射件35不仅限于金属材料或非金属材料制成的反射片，也可以是具有反射作用的金属或非金属材料形成的反射涂层，反射涂层可以直接喷涂或蒸镀在主体部311的第一表面3112上。
在本申请实施例中，导光件31的主体部311和凸出部312可以通过注塑工艺一体成型，如此可以减少光线从凸出部312进入至主体部311的过程中光量的损失，从而可以提高背光模组30光线的利用率。
在一实施例中，如图4所示，图4为本申请实施例提供的第二种背光模组的结构示意图，主体部311和凸出部312为两个独立的零部件，主体部311的第一侧面3113的相对端直接连接于主体部311的出光面3111和第一表面3112，凸出部312固定连接于主体部311的第一表面3112。
具体的，凸出部312可以通过高透固定胶315与主体部311的底面贴合，高透固定胶315的折射率应与主体部311以及凸出部312的折射率相等或相近，高透固定胶315的光线透过率应大于或等于98%，如此可以减小光线从凸出部312进入主体部311的过程中光量的损失。
在一实施例中，如图5所示，图5为本申请实施例提供的第三种背光模组的结构示意图，所述主体部311的所述出光面3111包括处于同一平面的第一出光面3111a和第二出光面3111b，主体部311具有第一子主体部311a和第二子主体部311b，第一子主体部311a与第二子主体部311b为两个独立的导光件，第一子主体部311a具有所述第一出光面3111a、与所述第一出光面3111a相对设置的所述第一表面3112以及第三表面3114，第三表面3114的相对端直接连接于所述第一出光面3111a和所述第一表面3112。
第二子主体部311b设置于第一子主体部311a靠近第一反射件32的一侧，所述第二子主体部311b具有所述第二出光面3111b、所述第一侧面3113以及与所述第一侧面3113相对设置并朝向所述第一子主体部311a的第二表面3122，第一侧面3113位于第二子主体部311b靠近第一反射件32的一侧，所述第二出光面3111b的相对端直接连接于所述第一侧面3113和所述第二表面3122，第二侧面3121位于凸出部312靠近第一反射件32的一侧，第一侧面3113的另一端直接连接于第二侧面3121，第二侧面3121的另一端还可以直接连接于凸出部312的底面。凸出部312设置于第二子主体部311b的下方，并且可以与第二子主体部311b一体成型。
具体的，所述第一子主体部311a的第三表面3114与第二子主体部311b的第二表面3122之间可以通过与图4所示的相同的高透固定胶315进行贴合，以此减少光线从第二子主体部311b进入第一子主体部311a的过程中光量的损失。
进一步的，第二子主体部311b的顶部与第一子主体部311a的顶部齐平，即第一子主体部311a的第一出光面3111a与第二子主体部311b的第二出光面3111b处于同一平面，第二子主体部311b与凸出部312的厚度之和大于第一子主体部311a的厚度，以使凸出部312的底部超出第一子主体部311a的底部。光源33设置于第一子主体部311a的底部，并且位于凸出部312超出第一子主体部311a的部分背离第一反射件32的一侧，凸出部312超出第一子主体部311a的部分朝向光源33的一侧面为所述导光件31的入光面。
在一实施例中，如图6所示，图6为本申请实施例提供的第四种背光模组的结构示意图，导光件31的底部可以为平整表面，收纳腔310可以设置于导光件31的底部，导光件31的入光面为所述收纳腔310的内壁面，光源33嵌入至所述收纳腔310内，第二反射件35可以设置于导光件31的底部，光源33发出的光线可以沿朝向第一反射件32的方向通过收纳腔310的内壁面入射至导光件31内，并经过第一反射件32后反射回导光件31内，并在第二反射件35的反射作用下继续在导光件31内向远光源端传播。
在本申请实施例中，收纳腔310可以与导光件31一体成型，在注塑形成导光件31时，可以在导光件31的底部同时形成该收纳腔310，如此可以降低导光件31的制程难度以及光源33的装配难度，同时还可以通过将光源33嵌入至导光件31底部的收纳腔310内，省略光源33占据的背光模组30的厚度，从而减小背光模组30的厚度。
进一步的，收纳腔310的形状适配光源33的形状。当光源33为点光源时，收纳腔310可以为方形凹槽。当光源33为线光源时，收纳腔310可以为长条状的凹槽。
进一步的，所述背光模组30还包括框架36，所述导光件31和所述光源33均设置于所述框架36内，第一反射件32设置于所述导光件31靠近所述框架的一侧。
所述框架36包括平铺设置的底框361和由所述底框361的四周边缘沿所述底框的厚度方向延伸形成的侧框362，所述底框361和所述侧框362围合形成的容置空间，用于容纳所述导光件31和所述光源33。
在其中一个实施例中，如图3所示，所述侧框362具有平直的表面，侧框362与底框361相互垂直。
在其中一个实施例中，如图4所示，所述框架36靠近所述凸出部的一侧框362向外凸出形成与所述第一侧面3113和所述第二侧面3121适配的楔形结构，所述主体部311靠近所述侧框362的一端以及所述凸出部312均至少部分伸入至所述楔形结构内。
进一步的，所述背光模组30还包括遮光胶38，遮光胶38可以设置于光学膜片37背离导光件31的一侧，并覆盖背光模组30对应显示面板主体的非显示区的区域，以用于遮挡背光模组30中的导光件31、第一反射件32、光源33等零部件，避免背光模组30在灯口的区域发生漏光。
遮光胶38的一部分可以贴合于所述侧框362的顶部，遮光胶38在所述底框361上的正投影部分覆盖所述导光件31设置有光源33的一端，通过将导光件31部分伸入至侧框362的楔形结构内，可以增大遮光胶38覆盖导光件31的面积，从而可以减小背光模组的灯口的宽度。
在一实施例中，如图7所示，图7为本申请实施例提供的第五种背光模组的结构示意图，需要说明的是，图7所示的背光模组的结构与图4所示的背光模组的结构大致相同，区别在于：图7所示的第五种背光模组中，第一反射件32设置于侧框362靠近所述导光件31的内壁上。
在本申请实施例中，框架36的底框361和侧框362可以一体成型。在实际应用中，框架36的底框361与侧框362可以为两个独立的零部件，底框361与侧框362的固定连接的方式可以包括但不限于粘胶、卡扣卡合或者螺纹连接等方式。
在本申请实施例中，框架36的材料为金属，以此可以是框架36具有良好的刚性，避免框架36受到外力时发生变形导致内部的光源33、导光件31等零部件造成损坏。
在图7所示的背光模组中，第一反射件32可以是反射涂层，反射涂层可以通过喷涂或蒸镀的工艺直接形成于侧框靠近所述导光件31的内壁上。在实际应用中，第一反射件32也可以是由金属或非金属材料制成的反射片或反射板，第一反射件32可以通过粘胶的方式贴合于侧框靠近所述导光件31的内壁上。
进一步的，在本申请实施例中，背光模组30还包括光学膜片37，光学膜片37设置于导光件31的出光侧。光学膜片37可以包括但不限于扩散膜、增量膜或棱镜膜等光学膜片中的至少一种。
进一步的，在本申请实施例中，如图4所示，所述背光模组30还可以包括支撑层39，所述支撑层39设置于柔性电路板34上，并用于支撑所述第二反射件35。所述支撑层39可以采用双面胶、泡棉胶或者其他软质橡胶材料制备而成。
本申请实施例提供一种背光模组、显示面板及电子装置，所述电子装置包括所述显示面板，所述显示面板包括显示面板主体和所述背光模组，所述背光模组包括导光件、反射件和光源，所述反射件设置于所述导光件的侧边，所述反射件的反射面朝向所述导光件，通过将光源设置于导光件的底部，使光源与导光件在背光模组的厚度方向上重叠，以此减小背光模组的灯口的宽度，导光件的底部具有一入光面，导光件的入光面朝向光源的发光面，光源的所述发光面朝向反射件的反射面，光源发出的光线从导光件的底部出射后，可以通过反射件的反射面再反射回导光件内，使得背光模组的混光距离不受影响，从而在减小背光模组的灯口的宽度的同时，能够使背光模组的灯口具有良好的光效。
综上所述，虽然本申请以优选实施例揭露如上，但上述优选实施例并非用以限制本申请，本领域的普通技术人员，在不脱离本申请的精神和范围内，均可作各种更动与润饰，因此本申请的保护范围以权利要求界定的范围为基准。

Claims (20)

  1. 一种背光模组，包括：
    导光件，具有收纳腔；
    第一反射件，设置于所述导光件的侧边，所述第一反射件的反射面朝向所述导光件；以及
    光源，设置于所述收纳腔内，所述光源的发光面朝向所述第一反射件的所述反射面。
  2. 如权利要求1所述的背光模组，其中，所述导光件具有主体部和设置于所述主体部下方的凸出部，所述主体部与所述凸出部围合形成所述收纳腔。
  3. 如权利要求2所述的背光模组，其中，所述主体部包括相对设置的出光面和第一表面，所述凸出部和所述光源均设置于所述第一表面背离所述出光面的一侧，所述光源设置于所述凸出部背离所述第一反射件的一侧。
  4. 如权利要求3所述的背光模组，其中，所述主体部包括倾斜的第一侧面，所述凸出部包括倾斜的第二侧面；
    其中，所述第一侧面与所述第二侧面之间的夹角大于或等于30°且小于或等于180°。
  5. 如权利要求4所述的背光模组，其中，所述第一反射件包括与所述第一侧面平行的第一部和与所述第二侧面平行的第二部。
  6. 如权利要求4所述的背光模组，其中，所述第一侧面的相对端直接连接于所述出光面和所述第二侧面。
  7. 如权利要求6所述的背光模组，其中，所述主体部与所述凸出部一体成型。
  8. 如权利要求6所述的背光模组，其中，所述出光面包括处于同一平面的第一出光面和第二出光面，所述主体部包括：
    第一子主体部，所述第一子主体部包括所述第一出光面及与所述第一出光面相对的第一表面；以及
    第二子主体部，位于所述第一子主体部靠近所述第一反射件的一侧，所述第二子主体部具有所述第二出光面、所述第一侧面以及与所述第一侧面相对设置并朝向所述第一子主体部的第二表面，所述第二出光面的相对端直接连接于所述第一侧面和所述第二表面，所述凸出部位于所述第二子主体部的下方并与所述第二子主体部一体成型。
  9. 如权利要求4所述的背光模组，其中，所述第一侧面的相对端直接连接于所述出光面和所述第一表面，所述凸出部固定连接于所述第一表面。
  10. 如权利要求4所述的背光模组，其中，所述背光模组还包括框架，所述导光件和所述光源均设置于所述框架内，所述第一反射件设置于所述导光件靠近所述框架的一侧。
  11. 如权利要求10所述的背光模组，其中，所述框架靠近所述凸出部的一侧框向外凸出形成与所述第一侧面和所述第二侧面适配的楔形结构，所述主体部靠近所述侧框的一端以及所述凸出部至少部分伸入至所述楔形结构内。
  12. 如权利要求3所述的背光模组，其中，所述导光件还包括第二反射件，所述第二反射件设置于所述光源与所述第一表面之间。
  13. 一种显示面板，包括显示面板主体和背光模组，所述显示面板主体设置于所述背光模组的出光侧，所述背光模组包括：
    导光件，具有收纳腔；
    第一反射件，设置于所述导光件的侧边，所述第一反射件的反射面朝向所述导光件；以及
    光源，设置于所述收纳腔内，所述光源的发光面朝向所述第一反射件的所述反射面。
  14. 如权利要求13所述的显示面板，其中，所述导光件具有主体部和设置于所述主体部下方的凸出部，所述主体部与所述凸出部围合形成所述收纳腔。
  15. 如权利要求14所述的显示面板，其中，所述主体部包括相对设置的出光面和第一表面，所述凸出部和所述光源均设置于所述第一表面背离所述出光面的一侧，所述光源设置于所述凸出部背离所述第一反射件的一侧。
  16. 如权利要求15所述的显示面板，其中，所述主体部包括倾斜的第一侧面，所述凸出部包括倾斜的第二侧面；
    其中，所述第一侧面与所述第二侧面之间的夹角大于或等于30°且小于或等于180°。
  17. 如权利要求16所述的显示面板，其中，所述第一反射件包括与所述第一侧面平行的第一部和与所述第二侧面平行的第二部。
  18. 如权利要求16所述的显示面板，其中，所述第一侧面的相对端直接连接于所述出光面和所述第二侧面。
  19. 如权利要求18所述的显示面板，其中，所述主体部与所述凸出部一体成型。
  20. 如权利要求18所述的显示面板，其中，所述出光面包括处于同一平面的第一出光面和第二出光面，所述主体部包括：
    第一子主体部，所述第一子主体部包括所述第一出光面及与所述第一出光面相对的第一表面；以及
    第二子主体部，位于所述第一子主体部靠近所述第一反射件的一侧，所述第二子主体部具有所述第二出光面、所述第一侧面以及与所述第一侧面相对设置并朝向所述第一子主体部的第二表面，所述第二出光面的相对端直接连接于所述第一侧面和所述第二表面，所述凸出部位于所述第二子主体部的下方并与所述第二子主体部一体成型。
PCT/CN2021/138564 2021-12-13 2021-12-15 背光模组及显示面板 WO2023108510A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US17/622,477 US11982829B2 (en) 2021-12-13 2021-12-15 Backlight module and display panel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202111514442.4A CN114200715A (zh) 2021-12-13 2021-12-13 背光模组及显示面板
CN202111514442.4 2021-12-13

Publications (1)

Publication Number Publication Date
WO2023108510A1 true WO2023108510A1 (zh) 2023-06-22

Family

ID=80652678

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/138564 WO2023108510A1 (zh) 2021-12-13 2021-12-15 背光模组及显示面板

Country Status (2)

Country Link
CN (1) CN114200715A (zh)
WO (1) WO2023108510A1 (zh)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008299181A (ja) * 2007-06-01 2008-12-11 Hitachi Ltd 液晶表示装置
CN104776363A (zh) * 2015-04-28 2015-07-15 京东方科技集团股份有限公司 一种背光模组及显示装置
CN104964213A (zh) * 2015-07-14 2015-10-07 武汉华星光电技术有限公司 背光模组及液晶显示器
CN108132565A (zh) * 2018-02-09 2018-06-08 厦门天马微电子有限公司 一种背光模组及显示装置
CN109683398A (zh) * 2019-02-22 2019-04-26 惠州市华星光电技术有限公司 背光模组及显示装置
CN211375118U (zh) * 2020-02-25 2020-08-28 维沃移动通信有限公司 背光模组、显示装置和电子设备

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202025105U (zh) * 2011-04-02 2011-11-02 深圳市华星光电技术有限公司 导光板及液晶显示模组
CN203298217U (zh) * 2013-05-31 2013-11-20 深圳Tcl新技术有限公司 背光模组的承载结构和液晶显示装置
CN108700263A (zh) * 2016-03-11 2018-10-23 夏普株式会社 照明装置及显示装置
CN112987407A (zh) * 2021-03-31 2021-06-18 维沃移动通信有限公司 背光模组及电子设备
CN113687539B (zh) * 2021-08-16 2024-02-09 武汉华星光电技术有限公司 一种背光模组及显示终端

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008299181A (ja) * 2007-06-01 2008-12-11 Hitachi Ltd 液晶表示装置
CN104776363A (zh) * 2015-04-28 2015-07-15 京东方科技集团股份有限公司 一种背光模组及显示装置
CN104964213A (zh) * 2015-07-14 2015-10-07 武汉华星光电技术有限公司 背光模组及液晶显示器
CN108132565A (zh) * 2018-02-09 2018-06-08 厦门天马微电子有限公司 一种背光模组及显示装置
CN109683398A (zh) * 2019-02-22 2019-04-26 惠州市华星光电技术有限公司 背光模组及显示装置
CN211375118U (zh) * 2020-02-25 2020-08-28 维沃移动通信有限公司 背光模组、显示装置和电子设备

Also Published As

Publication number Publication date
CN114200715A (zh) 2022-03-18

Similar Documents

Publication Publication Date Title
US11353648B2 (en) Backlight module and display device
US9541782B2 (en) Liquid crystal display and electronic device
CN211123566U (zh) 背光模组及显示装置
TWI547740B (zh) 具遮光模組之背光模組以及使用此背光模組的顯示裝置
WO2019149085A1 (zh) 电子装置及其显示组件、背光模组
US11175446B1 (en) Backlight module and display device
CN209784699U (zh) 一种灯条、背光模组及显示模组
WO2016183902A1 (zh) 背光模组及液晶显示装置
US20200209457A1 (en) Backlight module and display device
US9494722B2 (en) Backlight module
WO2018201719A1 (zh) 一种背光模组及显示装置
WO2016206146A1 (zh) 背光模组及液晶显示器
CN110908191A (zh) 显示模组和显示装置
WO2015165010A1 (zh) 导光板、液晶显示器显示模组和终端设备
WO2023207287A1 (zh) 一种显示装置、拼接显示装置
US9885819B2 (en) Backlight module and display device
WO2023109197A1 (zh) 反射纸、背光模组及显示装置
WO2019149082A1 (zh) 一种背光模组、显示组件和电子装置
US10317611B2 (en) Display device
JP2013171619A (ja) 表示装置及びテレビ受信装置
TW201409129A (zh) 背光模組及其應用
CN114167645B (zh) 背光模组和液晶显示装置
US20240036247A1 (en) Backlight module and display panel
WO2023108510A1 (zh) 背光模组及显示面板
US20220350073A1 (en) 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: 21967646

Country of ref document: EP

Kind code of ref document: A1