CN104748015A - Backlight module and diffusion plate of curve display device and curve display device - Google Patents

Backlight module and diffusion plate of curve display device and curve display device Download PDF

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Publication number
CN104748015A
CN104748015A CN201510167020.2A CN201510167020A CN104748015A CN 104748015 A CN104748015 A CN 104748015A CN 201510167020 A CN201510167020 A CN 201510167020A CN 104748015 A CN104748015 A CN 104748015A
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China
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described
diffuser plate
light
backlight module
surface
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CN201510167020.2A
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Chinese (zh)
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CN104748015B (en
Inventor
赵洪宇
刁凯
朴仁镐
张亮
褚洋
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京东方科技集团股份有限公司
北京京东方显示技术有限公司
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Priority to CN201510167020.2A priority Critical patent/CN104748015B/en
Publication of CN104748015A publication Critical patent/CN104748015A/en
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    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; 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
    • G02F1/133606Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; 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
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; 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
    • G02F1/133606Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G02F2001/133607Direct 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

Abstract

The invention discloses a backlight module and a diffusion plate of a curve display device and the curve display device, and aims to saving a light guide plate, reducing the phenomenon of non-uniform light and shade of a displayed image as well as improving the display effect of the display device. The backlight module comprises a rear board with a sunken part, a light source and the diffusion plate, wherein the light source and the diffusion plate are positioned in the sunken part; the light source comprises lighting bodies which are positioned on two opposite sides of the diffusion plate; a light guide structure is arranged on the light incoming surface of the diffusion plate and can be used for reflecting light emitted by the lighting bodies on the two sides as well as diffusing to the side of the light outgoing surface of the diffusion plate. According to the backlight module, the curvature of the diffusion plate, the structure of the light incoming surface and the position of the light source are changed, so that the light generated by the light source can be uniformly reflected by the diffusion plate and diffused to the side of the light outgoing surface of the diffusion plate, and as a result, the phenomenon of concentrated light at two sides can be reduced.

Description

The backlight module of curved-surface display device, diffuser plate and curved-surface display device

Technical field

The present invention relates to display technology field, particularly a kind of curved-surface display backlight module, diffuser plate and curved-surface display device.

Background technology

Along with the development of Display Technique, and the raising day by day that Consumer's Experience requires, the lcd products of curved surface is also arisen at the historic moment.The display floater of liquid crystal has certain elasticity, can realize the LCDs of curved surface; Because liquid crystal itself can not be luminous, therefore the LCDs of curved surface needs a Light distribation to be the backlight module of curved surface.

The backlight module of current curved-surface display device is mainly divided into straight-down negative and side entering type, wherein, side entrance back module is based on two minor face light inlet, but in this mode, for curved-surface display device, light guide plate is bent downwardly, a lot of light is had to penetrate in the side, incidence surface place, both sides of light guide plate, brightness is higher, and the central part brightness of light guide plate is more relatively low, and display screen on the whole picture center is partially dark; For down straight aphototropism mode set, the LED used needs secondary lens to disperse the light that it sends, and holistic cost is very high.And if need to accomplish that mixed light is apart from time less, more easily occurs the phenomenon that display frame light and shade is uneven.

Summary of the invention

The invention provides a kind of backlight module of curved-surface display device, diffuser plate and curved-surface display device, in order to save light guide plate, reduce the generation of display frame light and shade non-uniform phenomenon, improve the display effect of display unit.

For achieving the above object, the invention provides following technical scheme:

The invention provides a kind of backlight module of curved-surface display device, comprising: the backboard with depressed part, be positioned at light source and the diffuser plate of described depressed part, described light source comprises: the illuminator being positioned at the relative both sides of described diffuser plate;

The incidence surface of described diffuser plate has light guide structure, and the light that the illuminator of both sides can send by described light guide structure reflects and spreads the side, exiting surface place to described diffuser plate.

Backlight module provided by the invention, save light guide plate, by changing the position of diffuser plate curvature, incidence surface structure and light source, the light that light source is sent can be diffused plate reflection more uniformly and be diffused into side, diffuser plate exiting surface place, reduces the generation of the phenomenon that two sidelights are comparatively concentrated.

So, the invention provides backlight module, can light guide plate be saved, alleviate the weight of backlight module, reduce the generation of display frame light and shade non-uniform phenomenon, improve the display effect of display unit.

In some optional embodiments, above-mentioned backlight module also comprises: the reflector plate being positioned at the side, incidence surface place of described diffuser plate.Arranging of reflector plate can improve the utilization rate of backlight module to light source, and the light that the illuminator of both sides sends also can by reflection to diffuser plate after being radiated at reflector plate.

In some optional embodiments, described diffuser plate has the curved-surface structure identical with the display surface of described curved-surface display device, and described light guide structure is symmetrical structure, wherein: the symmetry axis of described light guide structure is the perpendicular bisector of the curved edges of described diffuser plate.The light guide structure of axially symmetric structure, when diffuser plate can be made to bend, the reflection of the light symmetry that both sides illuminator sends and diffusion, can reduce the generation of display frame light and shade non-uniform phenomenon further.

In some optional embodiments, described light guide structure is that the illuminator place from its symmetry axis to correspondence rolls oblique tooth-shape structure, and each tooth in tooth-shape structure is provided with the light that sent by the illuminator of described correspondence the first reflecting surface to the exiting surface place lateral reflection of described diffuser plate towards the one side of the illuminator of correspondence.The light that the illuminator of both sides sends is radiated at the exiting surface the first reflecting surface being reflected to diffuser plate.

In some optional embodiments, above-mentioned backlight module also comprises: between described diffuser plate and described reflector plate, corresponding with the middle part of described diffuser plate reflector, and described reflector is provided with the second reflecting surface that the light that sent by the illuminator of described correspondence reflects to the middle part of the side, exiting surface place of described diffuser plate towards the one side of the side, illuminator place of correspondence.The design of reflector can avoid the phenomenon of the middle part areflexia light of diffuser plate, can improve the light and shade uniformity of display floater display frame further.

In some optional embodiments, described each tooth is dihedral.

In some optional embodiments, the angle of the crown of described each tooth is 15 ° ~ 45 °.

In some optional embodiments, described each tooth is trapezium structure.

In some optional embodiments, the end face of described reflector is that triangle is semicircle or trapezoidal.

In some optional embodiments, described luminous body position is in the both sides of the relative minor face of described diffuser plate.

In some optional embodiments, described each tooth is pasted with reflector plate or is coated with reflecting layer to form described first reflecting surface; And/or,

Described reflector is pasted with reflector plate or is coated with reflecting layer to form described second reflecting surface.

Present invention also offers a kind of curved-surface display device, comprising: display floater, also comprise the backlight module described in above-mentioned any one.Because above-mentioned backlight module saves light guide plate, reduce the generation of display frame light and shade non-uniform phenomenon, improve the display effect of display unit, therefore curved-surface display device provided by the invention, there is good display effect.

Present invention also offers a kind of diffuser plate, the incidence surface of described diffuser plate has light guide structure, and the light that the illuminator of both sides can send by described light guide structure reflects and spreads the side, exiting surface place to described diffuser plate.Diffuser plate provided by the invention is applied in backlight module, can save the light guide plate in backlight module, alleviates the weight of backlight module, improves the uniformity of the light that backlight module sends.

In some optional embodiments, described diffuser plate has the curved-surface structure identical with the display surface of described curved-surface display device, and described light guide structure is symmetrical structure, wherein: the symmetry axis of described light guide structure is the perpendicular bisector of the curved edges of described diffuser plate.The light guide structure of axially symmetric structure, when diffuser plate can be made to bend, the reflection of the light symmetry that both sides illuminator sends and diffusion, can reduce the generation of display frame light and shade non-uniform phenomenon further.

In some optional embodiments, described light guide structure is that the illuminator place from its symmetry axis to correspondence rolls oblique tooth-shape structure, and each tooth in tooth-shape structure is provided with the light that sent by the illuminator of described correspondence the first reflecting surface to the exiting surface place lateral reflection of described diffuser plate towards the one side of the illuminator of correspondence.

In some optional embodiments, the angle of the crown of described each tooth is 15 ° ~ 45 °.

In some optional embodiments, described each tooth is pasted with reflector plate or is coated with reflecting layer to form described first reflecting surface.

Accompanying drawing explanation

Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a part of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:

Fig. 1 is the structural representation of curved-surface display device provided by the invention;

Fig. 2 is the structural representation of diffuser plate provided by the invention;

Fig. 3 is backlight module paths schematic diagram provided by the invention.

In figure:

1-backboard 2-reflector plate

3-illuminator 4-diffuser plate

41-light guide structure 411-first reflecting surface

42-exiting surface 5-reflector

51-second reflecting surface 6-display floater

7-symmetry axis

Detailed description of the invention

Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.

As shown in Figure 1, Figure 2 and Figure 3, wherein: Fig. 1 is the structural representation of curved-surface display device provided by the invention; Fig. 2 is the structural representation of diffuser plate provided by the invention; Fig. 3 is backlight module paths schematic diagram provided by the invention, the invention provides a kind of backlight module of curved-surface display device, comprise: the backboard 1 with depressed part, be positioned at light source and the diffuser plate 4 of depressed part, light source comprises: the illuminator being positioned at the relative both sides of diffuser plate 4; The incidence surface of diffuser plate 4 has light guide structure 41, and the light that the illuminator 3 of both sides can send by light guide structure 41 reflects and spreads the side, exiting surface 42 place to diffuser plate 4.

Backlight module provided by the invention, save light guide plate, index path as shown in Figure 3, by changing the position of the curvature of diffuser plate 4, incidence surface structure and light source, the light that illuminator 3 is sent can be diffused the side, exiting surface 42 place that plate 4 reflects and is diffused into diffuser plate 4, reduces the generation of the phenomenon that two sidelights are comparatively concentrated.

So backlight module provided by the invention, can save light guide plate, alleviates the weight of backlight module, reduce the generation of display frame light and shade non-uniform phenomenon, improve the display effect of display unit.

It should be noted that: the incidence surface of diffuser plate is the one side of diffuser plate towards the bottom of the depressed part of backboard, and the exiting surface of diffuser plate is the one side that diffuser plate deviates from the bottom of the depressed part of backboard.

As shown in Figure 1, the top of diffuser plate 4 is provided with display floater 6, after the backlight module of said structure is applied in display unit, the light that light source sends can be diffused the side, exiting surface 42 place that plate 4 reflects and is diffused into diffuser plate 4, namely reflect to display floater 6, reduce the generation of the phenomenon that display floater two sidelight is comparatively concentrated.

As shown in Figure 1, above-mentioned backlight module also comprises: the reflector plate 2 being positioned at the side, incidence surface place of diffuser plate 4.Arranging of reflector plate 2 can improve the utilization rate of backlight module to light source, and the light that the illuminator 3 of both sides sends also can by reflection to diffuser plate 4 after being radiated at reflector plate 2.

Above-mentioned illuminator can be the structure that LED etc. can be luminous.

Further, as shown in Figure 2, diffuser plate 4 has the curved-surface structure identical with the display surface of curved-surface display device, and light guide structure is symmetrical structure, wherein: the symmetry axis of light guide structure is the perpendicular bisector of the curved edges of diffuser plate.The light guide structure of axially symmetric structure, when diffuser plate can be made to bend, the reflection of the light symmetry that both sides illuminator sends and diffusion, can reduce the generation of display frame light and shade non-uniform phenomenon further.

As shown in Figure 2, light guide structure 41 is that illuminator 3 place from its symmetry axis 7 to correspondence rolls oblique tooth-shape structure, and each tooth in tooth-shape structure is provided with the light that sent by the illuminator 3 of correspondence the first reflecting surface 411 to the exiting surface 42 place lateral reflection of diffuser plate 4 towards the one side of the illuminator 3 of correspondence.The light that the illuminator 3 of both sides sends is radiated at the exiting surface 42 the first reflecting surface 411 being reflected to diffuser plate 4.

Further, above-mentioned backlight module also comprises: between diffuser plate 4 and reflector plate 2, corresponding with the middle part of diffuser plate 4 reflector 5, and reflector 5 is provided with the second reflecting surface 51 that the light that sent by the illuminator 3 of correspondence reflects to the middle part of the side, exiting surface place of diffuser plate 4 towards the one side of the side, illuminator 3 place of correspondence.The design of reflector 5 can avoid the phenomenon of the middle part areflexia light of diffuser plate 4, can improve the light and shade uniformity of display floater display frame further, size those skilled in the art of the reflectivity of the second reflecting surface can determine according to the real screen situation in use.

Optionally, each tooth be pasted with reflector plate or be coated with reflecting layer to form the first reflecting surface 411; And/or, reflector is pasted with reflector plate or is coated with reflecting layer to form the second reflecting surface 51.Namely the first reflecting surface 411 can for attach formed also can for coating formed, the second reflecting surface 51 also can for attach formed or coating formed.

Above-mentioned tooth-shape structure according to the real screen change of circumstance structure in use and can change the slope of the first reflecting surface and the size of reflectivity, and optionally, the concrete shape of above-mentioned tooth-shape structure can have multiple:

In a kind of optional embodiment, as shown in Figure 3, each tooth is dihedral.

Further, the angle of the crown a of each tooth is 15 ° ~ 45 °.Such as: 15 °, 30 °, 35 °, 40 °, 45 ° etc., just repeat no longer one by one here.

In another kind of optional embodiment, each tooth is trapezium structure.

The end face of above-mentioned reflector 5 can be triangle, and also can be semicircle, also can be trapezoidal, also or be the mountain peak shape structure of multilayer.

Because curved-surface display device is generally that long limit bends, therefore preferably, luminous body position is in the both sides of the relative minor face of diffuser plate.

Present invention also offers a kind of curved-surface display device, comprising: display floater, also comprise the backlight module described in above-mentioned any one.Because above-mentioned backlight module saves light guide plate, reduce the generation of display frame light and shade non-uniform phenomenon, improve the display effect of display unit, therefore curved-surface display device provided by the invention, there is good display effect.

Above-mentioned display unit can be able to be commercial television for LCDs LCD, display or be outdoor super large display device and deep camber display device

As shown in Figure 2, present invention also offers a kind of diffuser plate, the incidence surface of diffuser plate 4 has light guide structure 41, and the light that the illuminator 3 of both sides can send by light guide structure 41 reflects and spreads the side, exiting surface 42 place to diffuser plate 4.Diffuser plate provided by the invention is applied in backlight module, can save the light guide plate in backlight module, alleviates the weight of backlight module, improves the uniformity of the light that backlight module sends.

Further, diffuser plate 4 has the curved-surface structure identical with the display surface of curved-surface display device, and light guide structure 41 is symmetrical structure, wherein: the symmetry axis 7 of light guide structure 41 is the perpendicular bisector of the curved edges of diffuser plate 4.The light guide structure 41 of axially symmetric structure, when diffuser plate 4 can be made to bend, the reflection of the light symmetry that both sides illuminator 3 sends and diffusion, can reduce the generation of display frame light and shade non-uniform phenomenon further.

Further, light guide structure 41 is that the illuminator place from its symmetry axis to correspondence rolls oblique tooth-shape structure, and each tooth in tooth-shape structure is provided with the light that sent by the illuminator 3 of correspondence the first reflecting surface 411 to the exiting surface 42 place lateral reflection of diffuser plate 4 towards the one side of the illuminator 3 of correspondence.

Optionally, the angle of the crown a of each tooth is 15 ° ~ 45 °.Such as: 15 °, 30 °, 35 °, 40 °, 45 ° etc., just repeat no longer one by one here.

Optionally, each tooth be pasted with reflector plate or be coated with reflecting layer to form the first reflecting surface.

Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.

Claims (17)

1. a backlight module for curved-surface display device, comprising: the backboard with depressed part, is positioned at light source and the diffuser plate of described depressed part, it is characterized in that,
Described light source comprises: the illuminator being positioned at the relative both sides of described diffuser plate;
The incidence surface of described diffuser plate has light guide structure, and the light that the illuminator of both sides can send by described light guide structure reflects and spreads the side, exiting surface place to described diffuser plate.
2. backlight module according to claim 1, is characterized in that, also comprises: the reflector plate being positioned at the side, incidence surface place of described diffuser plate.
3. backlight module according to claim 1, it is characterized in that, described diffuser plate has the curved-surface structure identical with the display surface of described curved-surface display device, and described light guide structure is symmetrical structure, wherein: the symmetry axis of described light guide structure is the perpendicular bisector of the curved edges of described diffuser plate.
4. backlight module according to claim 3, it is characterized in that, described light guide structure is that the illuminator place from its symmetry axis to correspondence rolls oblique tooth-shape structure, and each tooth in tooth-shape structure is provided with the light that sent by the illuminator of described correspondence the first reflecting surface to the exiting surface place lateral reflection of described diffuser plate towards the one side of the illuminator of correspondence.
5. backlight module according to claim 4, it is characterized in that, also comprise: between described diffuser plate and described reflector plate, corresponding with the middle part of described diffuser plate reflector, described reflector is provided with the second reflecting surface that the light that sent by the illuminator of described correspondence reflects to the middle part of the side, exiting surface place of described diffuser plate towards the one side of the side, illuminator place of correspondence.
6. backlight module according to claim 4, is characterized in that, described each tooth is dihedral.
7. backlight module according to claim 6, is characterized in that, the angle of the crown of described each tooth is 15 ° ~ 45 °.
8. backlight module according to claim 4, is characterized in that, described each tooth is trapezium structure.
9. backlight module according to claim 5, is characterized in that, the end face of described reflector is that triangle is semicircle or trapezoidal.
10. backlight module according to claim 5, is characterized in that, described luminous body position is in the both sides of the relative minor face of described diffuser plate.
11. backlight modules according to any one of claim 5 ~ 9, is characterized in that, described each tooth is pasted with reflector plate or is coated with reflecting layer to form described first reflecting surface; And/or,
Described reflector is pasted with reflector plate or is coated with reflecting layer to form described second reflecting surface.
12. 1 kinds of curved-surface display devices, comprising: display floater, it is characterized in that, also comprise: the backlight module as described in any one of claim 1 ~ 11.
13. 1 kinds of diffuser plates, is characterized in that, the incidence surface of described diffuser plate has light guide structure, and the light that the illuminator of both sides can send by described light guide structure reflects and spreads the side, exiting surface place to described diffuser plate.
14. diffuser plates according to claim 13, it is characterized in that, described diffuser plate has the curved-surface structure identical with the display surface of curved-surface display device, and described light guide structure is symmetrical structure, wherein: the symmetry axis of described light guide structure is the perpendicular bisector of the curved edges of described diffuser plate.
15. diffuser plates according to claim 14, it is characterized in that, described light guide structure is that the illuminator place from its symmetry axis to correspondence rolls oblique tooth-shape structure, and each tooth in tooth-shape structure is provided with the light that sent by the illuminator of described correspondence the first reflecting surface to the exiting surface place lateral reflection of described diffuser plate towards the one side of the illuminator of correspondence.
16. diffuser plates according to claim 15, is characterized in that, the angle of the crown of described each tooth is 15 ° ~ 45 °.
17. diffuser plates according to claim 15 or 16, is characterized in that, described each tooth is pasted with reflector plate or is coated with reflecting layer to form described first reflecting surface.
CN201510167020.2A 2015-04-09 2015-04-09 The backlight module of curved-surface display device, diffuser plate and curved-surface display device CN104748015B (en)

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CN106468800A (en) * 2016-08-12 2017-03-01 联想(北京)有限公司 A kind of Optical devices and electronic equipment
CN106842406A (en) * 2015-12-07 2017-06-13 三星显示有限公司 Light element and display device
CN107367787A (en) * 2017-09-22 2017-11-21 青岛海信电器股份有限公司 Curved surface backlight abnormal shape light guide plate, curved surface backlight module and Curved LCD

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