CN106896444B - Backlight display module B L U, L CM and electronic equipment - Google Patents

Backlight display module B L U, L CM and electronic equipment Download PDF

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Publication number
CN106896444B
CN106896444B CN201710200066.9A CN201710200066A CN106896444B CN 106896444 B CN106896444 B CN 106896444B CN 201710200066 A CN201710200066 A CN 201710200066A CN 106896444 B CN106896444 B CN 106896444B
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Prior art keywords
light
frame
preset
cross
reflecting
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CN106896444A (en
Inventor
李金泽
邓植文
王伯源
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light 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
    • G02B6/0013Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023Means 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
    • G02B6/0031Reflecting element, sheet or layer
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light 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
    • G02B6/0066Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0068Arrangements of plural sources, e.g. multi-colour light sources
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light 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
    • G02B6/0066Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0073Light emitting diode [LED]
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light 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
    • G02B6/0081Mechanical 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
    • G02B6/0086Positioning aspects
    • G02B6/0088Positioning aspects of the light guide or other optical sheets in the package
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light 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
    • G02B6/0081Mechanical 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
    • G02B6/0086Positioning aspects
    • G02B6/009Positioning aspects of the light source in the package
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133602Direct backlight
    • G02F1/133603Direct backlight with LEDs
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133602Direct backlight
    • G02F1/133605Direct backlight including specially adapted reflectors
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133602Direct backlight
    • G02F1/133608Direct backlight including particular frames or supporting means

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  • 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)
  • Microelectronics & Electronic Packaging (AREA)
  • Planar Illumination Modules (AREA)

Abstract

The B L U comprises a light guide plate L GP, n light sources with light emitting surfaces facing to preset side edges of L GP and a plastic frame for containing L GP and the n light sources, wherein n is a positive integer larger than or equal to 2, each light source in the n light sources is used for emitting horizontal light, L GP is used for converting the horizontal light emitted by each light source into two paths of cross light which propagates towards two sides, a reflecting mirror surface is arranged in each frame perpendicular to the preset side edges in the plastic frame, each reflecting mirror surface is used for reflecting the received one path of cross light back to L GP through the preset area in the frame, and the preset area is between an irradiation area of the cross light in the frame and the preset side edge.

Description

Backlight display module B L U, L CM and electronic equipment
Technical Field
The disclosure relates to the technical field of display screens, in particular to a backlight display module B L U, L CM and electronic equipment.
Background
The picture adjustment of L CM (L liquid Crystal Display Module) is mainly realized by B L U (Back L light Unit) Display Module, and the picture of B L U Display Module is mainly realized by the design of L ED (L light Emitting Diode) and L GP (L light Guide Plate).
In the related art, the B L U includes L GP, a plurality of L EDs with light emitting surfaces facing L GP, and a plastic frame accommodating L GP and L ED, where L GP is used to convert horizontal light emitted by L EDs into two paths of cross light propagating towards two sides, so that after the two paths of cross light of two adjacent L EDs are crossed, light mixing can be achieved.
Disclosure of Invention
The embodiment of the disclosure provides a backlight display module B L U, L CM and electronic equipment, the technical scheme is as follows:
according to a first aspect of the embodiments of the present disclosure, a backlight display module B L U is provided, where the B L U includes a light guide plate L GP, n light sources with light emitting surfaces facing a preset side of the L GP, and a plastic frame for accommodating the L GP and the n light sources, where n is a positive integer greater than or equal to 2;
the L GP is used for converting the horizontal light emitted by each light source into two paths of cross light which are transmitted towards two sides;
and each frame perpendicular to the preset side edge in the plastic frame is provided with a reflecting mirror surface, each reflecting mirror surface is used for reflecting the received one path of cross light back to the L GP through a preset area in the frame, and the preset area is between the irradiation area of the cross light in the frame and the preset side edge.
Optionally, the mirror face comprises a first portion and a second portion; the first part comprises a part corresponding to the irradiation area in the frame, and the second part comprises a part corresponding to the preset area in the frame;
the first part is used for reflecting the received cross light to the second part;
the second part is used for reflecting the crossed light reflected back by the first part to the L GP.
Optionally, the first portion is a sawtooth mirror and the second portion is an arc mirror.
Optionally, the first portion is a serrated mirror surface, and the second portion is also a serrated mirror surface.
Optionally, the second portion is curved away from the L GP.
Optionally, the preset side edges include a first side edge and a second side edge which are parallel to each other in the L GP, then the B L U includes n1 light sources whose light emitting surfaces face the first side edge, and n2 light sources whose light emitting surfaces face the second side edge, where n1 and n2 are positive integers greater than or equal to 2.
Optionally, the first side and the second side are left and right frames or upper and lower frames in the L GP.
According to a second aspect of the embodiments of the present disclosure, there is provided an L CM, the L CM display module comprises the backlight display module B L U as described in the first aspect.
According to a third aspect of embodiments of the present disclosure, there is provided an electronic device comprising the L CM of the second aspect.
According to a fourth aspect of the embodiments of the present disclosure, there is provided an electronic device, including the backlight display module B L U according to the first aspect.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
the reflecting mirror surfaces are arranged in the frames perpendicular to the preset side edges in the plastic frame, and the received crossed light is reflected back to L GP through the reflecting mirror surfaces, so that the crossed light reflected back to L GP can be crossed with the crossed light emitted by L GP and positioned at the edge to supplement the light for the crossed light at the edge, the problem that dark regions occur at the edge of L GP in the related technology is solved, the effect of supplementing the light for the crossed light at the edge and avoiding the dark regions from occurring in the edge region is achieved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a schematic diagram illustrating B L U according to an exemplary embodiment;
FIG. 2 is a schematic diagram illustrating a mirror surface in accordance with an exemplary embodiment;
FIG. 3 is an optical path diagram illustrating a first portion reflecting cross light in accordance with an exemplary embodiment;
FIG. 4 is an optical path diagram illustrating the first and second portions reflecting cross light in accordance with an exemplary embodiment;
FIG. 5 is a schematic diagram illustrating another mirror surface in accordance with an exemplary embodiment;
fig. 6 is a schematic diagram illustrating another B L U according to an example embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Referring to fig. 1, a schematic structural diagram of a B L U according to an exemplary embodiment of the present disclosure is shown, as shown in fig. 1, the B L U includes L GP110, n light sources 120 with light emitting surfaces facing a preset side 111 of the L GP110, and a plastic frame 130 for accommodating the L GP110 and the n light sources 120, where n is a positive integer greater than or equal to 2:
optionally, the light source 120 may be L ED, CCF L (Cold Cathode Fluorescent lamp L amp) or E L (electroluminescence), which is not limited to the type of the light source in the embodiment, and the following is exemplified by the light source 120 being L ED except for specific description.
The plastic frame 130 is provided with a reflective mirror 132 in each frame 131 perpendicular to the preset side 111, each reflective mirror 132 is configured to reflect the received one-path crossing light back to the L GP110 through a preset area in the frame 131, and the preset area is between the irradiation area of the crossing light in the frame and the preset side 111.
In summary, in the B L U provided by this embodiment, the reflective mirror is disposed in each frame perpendicular to the preset side in the plastic frame, and the received cross light is reflected back to L GP by the reflective mirror, so that the cross light reflected back to L GP can cross the cross light emitted from L GP and located at the edge, and fill in the cross light at the edge, thereby solving the problem that a dark area may occur at the edge of L GP in the related art, and achieving the effect of filling in the cross light at the edge and avoiding the occurrence of the dark area at the edge.
Meanwhile, the light supplement can be realized only by arranging the reflecting mirror surface in the frame of the plastic frame, so that the effect of saving manpower and material resources is achieved.
In the above embodiment, the mirror surface 132 may include a first portion 132a and a second portion 132b, where the first portion 132a includes a portion corresponding to the irradiation area in the frame 131, and the second portion 132b includes a portion corresponding to the preset area in the frame 131.
The first portion 132a is used to reflect the received cross light to the second portion 132b after L GP110 converts the horizontal light emitted by the light source 120 into the cross light, the cross light at L GP110 side can be irradiated to an irradiation region in the plastic frame 130 at the periphery of L GP110 along the optical path direction, and the irradiation region is provided with the reflective mirror surface of the first portion 132a, so that after the cross light is received by the first portion 132a, the received cross light can be reflected and reflected to the second portion 132 b.
Alternatively, referring to fig. 2, the first portion 132a may be a sawtooth mirror surface, and after the crossed light is irradiated to the surface of the sawtooth mirror surface, the surface reflects the received crossed light to the second portion 132 b. In practice, the first portion 132a may have a certain curvature, such as the curvature shown in fig. 2, in order to ensure that the received cross light is reflected to the second portion 132 b. The arc is not limited in this embodiment, and the principle of reflecting the received cross light to the second portion 132b is followed.
Optionally, the height and the angle of the saw teeth may be set according to actual use requirements, which is not limited in this embodiment. The height of the tooth tip refers to the height between the highest position and the bottom of the tooth tip in the sawtooth, and the angle of the sawtooth refers to the angle between the waist and the bottom edge of the sawtooth.
Referring to fig. 3, a schematic diagram of the first portion 132a reflecting the cross light after receiving the cross light is shown.
The second portion 132b is used to reflect the cross light reflected back from the first portion 132a to L GP 110.
After the first portion 132a reflects the received cross light to the second portion 132b, the second portion 132b may correspondingly receive the reflected cross light and continuously reflect the received cross light to L gp110, optionally, since the second portion 132b is in a preset area, and the preset area is a portion between the illumination area and the preset side 111 in the bezel 131, after the second portion 132b reflects the cross light, the cross light entering the L GP110 may cross the cross light converted by the L GP110, and further fill the edge of the cross light.
Optionally, referring to fig. 2, the second portion 132b may be an arc mirror, the arc mirror may be curved toward any direction, and the curvature of the arc mirror may be set according to practical requirements, which follows the principle of reflecting the received cross light reflected by the first portion 132a to L gp110. in practical implementation, in order to reduce the frame thickness of the plastic frame 130 and further implement the design of a narrow frame, the second portion 132b may be curved away from the L GP110, for example, the curved direction shown in fig. 2 is curved, which is not limited in this embodiment.
In the structure shown in fig. 2, please refer to fig. 4, which shows a schematic optical path diagram of the L GP110 after emitting the cross light, the cross light finally returns to L GP110 through the reflection of the first portion 132a and the second portion 132 b.
Optionally, referring to fig. 5, the second portion 132b may also be a sawtooth mirror, and the present embodiment does not limit the height and angle of the sawtooth in the sawtooth mirror, and the principle of reflecting the received cross light reflected by the first portion 132a to L GP110 is followed.
The above description only uses the first portion 132a and the second portion 132b as the above structure for illustration, optionally, the first portion 132a and the second portion 132b may also be other structures, for example, the first portion 132a may also be an arc mirror, which follows the principle that the first portion 132a can reflect the cross light emitted from L GP110 to the second portion 132b, and the second portion 132b can reflect the cross light reflected by the first portion 132a to the L GP110, and the practical structure of the embodiment is not limited.
In the above, only one preset side is taken as an example, that is, the n light source 120 is located on one side of L GP, in practical implementation, when the display screen is larger, in order to ensure the brightness of the entire display screen, the preset side may further include a first side and a second side that are parallel to each other, for this case, the B L U may include n1 light sources whose light emitting surfaces face the first side and n2 light sources whose light emitting surfaces face the second side, for example, please refer to fig. 6, which shows a schematic structural diagram of the B L U at this time, where n1 and n2 are positive integers greater than or equal to 2, and values of n1 and n2 may be the same or different.
In practical implementation, the first side and the second side may be upper and lower frames or left and right frames in the L GP110, which is not limited in this embodiment.
Another exemplary embodiment of the present disclosure also provides L CM, the L CM including B L U shown in fig. 1.
In summary, according to the L CM provided by this embodiment, the reflective mirror surfaces are arranged in the frames perpendicular to the preset side edges in the plastic frame, and the received cross light is reflected back to L GP by the reflective mirror surfaces, so that the cross light reflected back to L GP can cross the cross light emitted by L GP and located at the edge, and the cross light at the edge is supplemented with light, which solves the problem that dark regions occur at the edge of L GP in the related art, and achieves the effects of supplementing light to the cross light at the edge and avoiding the occurrence of dark regions at the edge.
Meanwhile, the light supplement can be realized only by arranging the reflecting mirror surface in the frame of the plastic frame, so that the effect of saving manpower and material resources is achieved.
Still another exemplary embodiment of the present disclosure also provides an electronic device, which may include the L CM mentioned above, or the B L U shown in fig. 1.
In summary, according to the L CM provided by this embodiment, the reflective mirror surfaces are arranged in the frames perpendicular to the preset side edges in the plastic frame, and the received cross light is reflected back to L GP by the reflective mirror surfaces, so that the cross light reflected back to L GP can cross the cross light emitted by L GP and located at the edge, and the cross light at the edge is supplemented with light, which solves the problem that dark regions occur at the edge of L GP in the related art, and achieves the effects of supplementing light to the cross light at the edge and avoiding the occurrence of dark regions at the edge.
Meanwhile, the light supplement can be realized only by arranging the reflecting mirror surface in the frame of the plastic frame, so that the effect of saving manpower and material resources is achieved.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A backlight display module B L U is characterized in that the B L U comprises a light guide plate L GP, n light sources with light emitting surfaces facing to preset sides of the L GP and a plastic frame for accommodating the L GP and the n light sources, wherein n is a positive integer greater than or equal to 2;
the L GP is used for converting the horizontal light emitted by each light source into two paths of cross light which are transmitted towards two sides of the L GP which are perpendicular to the preset side edge;
each frame perpendicular to the preset side edge in the plastic frame is provided with a reflecting mirror surface, each reflecting mirror surface is of an arc structure and faces L GP, each reflecting mirror surface is used for reflecting the received path of cross light back to L GP through a preset area in the frame, the preset area is a part between an irradiation area of the cross light and the preset side edge in the frame, and the irradiation area refers to an irradiation area of the cross light on the frame.
2. The B L U according to claim 1, wherein the mirror surface comprises a first portion and a second portion, the first portion comprises a portion of the bezel corresponding to the illuminated area, the second portion comprises a portion of the bezel corresponding to the predetermined area;
the first part is used for reflecting the received cross light to the second part;
the second part is used for reflecting the crossed light reflected back by the first part to the L GP.
3. The B L U according to claim 2, wherein the first portion is a sawtooth mirror and the second portion is an arc mirror.
4. The B L U according to claim 2, wherein the first portion is a saw-toothed mirror and the second portion is also a saw-toothed mirror.
5. The B L U of claim 2, wherein the second portion curves away from the L GP.
6. The B L U according to claim 1, wherein the predetermined sides include a first side and a second side parallel to each other in the L GP, then the B L U includes n1 light sources with their light emitting surfaces facing the first side and n2 light sources with their light emitting surfaces facing the second side, and n1 and n2 are positive integers greater than or equal to 2.
7. The B L U according to claim 6, wherein the first and second sides are left and right borders or top and bottom borders in the L GP.
8. A liquid crystal display module L CM, wherein the L CM includes the backlight display module B L U as claimed in any one of claims 1 to 7.
9. An electronic device, characterized in that the electronic device comprises the L CM of claim 8.
10. An electronic device, comprising the backlight display module B L U according to any one of claims 1-7.
CN201710200066.9A 2017-03-30 2017-03-30 Backlight display module B L U, L CM and electronic equipment Active CN106896444B (en)

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CN107678085A (en) * 2017-09-29 2018-02-09 京东方科技集团股份有限公司 Light guide plate, light guide plate module, backlight module and display device
TWI807671B (en) * 2022-03-07 2023-07-01 元太科技工業股份有限公司 Light source module and electrophoretic display device

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CN203773197U (en) * 2014-03-28 2014-08-13 信利半导体有限公司 Liquid crystal display module and liquid crystal display device
CN204390665U (en) * 2014-08-05 2015-06-10 王盘龙 A kind of reflective reflection class mark, label with lighting device
CN204127782U (en) * 2014-09-23 2015-01-28 深圳Tcl新技术有限公司 Side reflector plate, backlight module and liquid crystal display

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