CN107367787B - Curved surface backlight abnormal shape light guide plate, curved surface backlight module and Curved LCD - Google Patents
Curved surface backlight abnormal shape light guide plate, curved surface backlight module and Curved LCD Download PDFInfo
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- CN107367787B CN107367787B CN201710866216.XA CN201710866216A CN107367787B CN 107367787 B CN107367787 B CN 107367787B CN 201710866216 A CN201710866216 A CN 201710866216A CN 107367787 B CN107367787 B CN 107367787B
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- 230000002159 abnormal effect Effects 0.000 title claims abstract description 68
- 230000008719 thickening Effects 0.000 claims abstract description 60
- 230000002596 correlated effect Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 abstract description 27
- 101100117236 Drosophila melanogaster speck gene Proteins 0.000 abstract description 6
- 230000000875 corresponding effect Effects 0.000 description 17
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 3
- 239000004926 polymethyl methacrylate Substances 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
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- 239000007788 liquid Substances 0.000 description 1
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Classifications
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- 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
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a kind of curved surface backlight abnormal shape light guide plate, curved surface backlight module and Curved LCDs, are used for curved surface backlight module, including flat part and thickening interconnecting piece, in which: connect between adjacent two flat part by the thickening interconnecting piece；The flat part corresponds to the curvature portion of curved surface backboard and faces part directly, and the thickening interconnecting piece corresponds to the curvature portion of the curved surface backboard and straight parts divides joint；The thickness of the flat part is less than the thickness for thickening interconnecting piece.Curved surface backlight abnormal shape light guide plate, curved surface backlight module and Curved LCD provided by the present application, using thickening light guide plate that interconnecting piece improves directly thickness at bent gradual change, LED light bar outside dimension can be effectively prevent to exceed the edge of light guide plate, the light for ensureing that LED is issued can be completely into light guide plate, avoiding the occurrence of light leakage leads to shadow or speck occur at the straight bent gradual change of light guide plate, and then guarantees the normal use of curved surface backlight module.
Description
Technical field
The present invention relates to technical field of liquid crystal display more particularly to a kind of curved surface backlight abnormal shape light guide plates, curved surface backlight mould
Group and Curved LCD.
Background technique
Curved surface backlight module is one of key part and component of Curved LCD, for well-off brightness and distribution
Uniform light source, enables Curved LCD normally to show image.
Fig. 1 is a kind of basic structure schematic diagram of typical curved surface backlight module in the prior art.As shown in Figure 1, curved surface
Backlight module includes curved surface backboard 1, light guide plate 2 and LED light bar 3.Wherein, curved surface backboard 1 is the nothing for including bottom surface and side
Lid box body structure, and the bottom surface of curved surface backboard 1 is curved surface；Light guide plate 2 is usually the PMMA with a thickness of 1.5-2mm
The slab construction of (Polymethylmethacrylate, polymethyl methacrylate) material is provided on the bottom surface of light guide plate 2
Site, the face parallel with 2 bottom surface of light guide plate are light-emitting surface, and a side of light guide plate 2 is incidence surface；It is provided in LED light bar 3
Several LED.Light guide plate 2 is compressed in curved surface backboard 1, the bottom surface of light guide plate 2 close to the bottom surface of curved surface backboard 1, light guide plate 2
One side of incidence surface and curved surface backboard 1 is close, and the curved surface backboard 1 close with 2 incidence surface of light guide plate is arranged in LED light bar 3
The inside of side, the light that LED is issued in LED light bar 3 enter in light guide plate 2.It is curved surface liquid to reach curved surface backlight module
Crystal display provides the planar light that brightness is abundant and is evenly distributed, and the light that LED is issued in LED light bar 3 should fully enter leaded light
Plate 2, and light can be propagated in the form of being totally reflected in light guide plate 2, some light is when traveling to site, total reflection
The light-emitting surface for being destroyed light from light guide plate 2 reflects.In order to which the light for guaranteeing that LED is issued fully enters in light guide plate 2, and because
For the thinner thickness of light guide plate 2, thus the center line of LED light bar 3 should with the centerline parallel of 2 incidence surface of light guide plate, i.e., attached
The center line of LED light bar 3 should show with the center line of 2 incidence surface of light guide plate and be overlapped in Fig. 1, exceed to prevent 3 outside dimension of LED light bar
The edge of light guide plate 2.
The bottom surface of curved surface backboard 1 be it is a kind of face the-curved surface that constitutes of curve form by curved surface-directly, usually when light guide plate 2 be pressed
When system in curved surface backboard 1, light guide plate 2 carries out deformation along the shape of 1 bottom surface of curved surface backboard, is formed and curved surface backboard 1
The corresponding curved surface light guide plate 2 in bottom surface.Fig. 2 is the partial view of curved surface backlight module.As shown in Figure 2, two-dot chain line indicates
It is the true form at the straight bent gradual change of light guide plate 2, what dotted line indicated is the theoretical shape at the straight bent gradual change of light guide plate 2.Due to leading
Stress at the straight bent gradual change of tabula rasa 2, so there are deviations for the practical gradual change bending of light guide plate 2 and theoretical gradual change bending, i.e.,
LED light bar center line as shown in Figure 2 is not overlapped with light guide plate actual center line, and the edge of LED light bar 3 has exceeded light guide plate 2,
The light for causing LED to issue can not fully enter in light guide plate 2, and then lead to shadow occur at the straight bent gradual change of light guide plate 2
Or speck, influence the normal use of curved surface backlight module.
Summary of the invention
The present invention provides a kind of curved surface backlight abnormal shape light guide plate, curved surface backlight module and Curved LCDs, with solution
Certainly curved surface backlight module curved surface and faces joint directly and the problem of shadow or speck occur.
According to a first aspect of the embodiments of the present invention, the present invention provides a kind of curved surface backlight abnormal shape light guide plates, for song
Face backlight module, which is characterized in that including flat part and thicken interconnecting piece, in which:
It is connected between adjacent two flat part by the thickening interconnecting piece；
The flat part corresponds to the curvature portion of curved surface backboard and faces part directly, and the thickening interconnecting piece corresponds to described
The curvature portion and straight parts of curved surface backboard divide joint；
The thickness of the flat part is less than the thickness for thickening interconnecting piece.
According to a second aspect of the embodiments of the present invention, the present invention provides a kind of curved surface backlight module, the curved surface backlights
Mould group includes curved surface backlight abnormal shape light guide plate described in above-mentioned any one.
According to a third aspect of the embodiments of the present invention, the present invention also provides a kind of Curved LCD, the curved surfaces
Liquid crystal display includes curved surface backlight module described above.
By the above technical method as it can be seen that a kind of curved surface backlight abnormal shape light guide plate provided in an embodiment of the present invention, curved surface backlight
Mould group and Curved LCD, curved surface backlight abnormal shape light guide plate include flat part and thicken interconnecting piece, thicken interconnecting piece and be used for
Adjacent flat part is connected, the thickness of flat part is respectively less than the thickness for thickening interconnecting piece.In actual conditions, since curved surface backlight is different
The thickness of type light guide plate is than relatively thin, and during in curved surface backlight abnormal shape light guide plate and LED light bar pair, dimensional tolerance will compare
Small, the thickness for the ratio flat part for thickening interconnecting piece by setting and its thickness being arranged is big, and thickeies interconnecting piece and lead for described
At the straight bent gradual change of tabula rasa, the ruler of curved surface the backlight abnormal shape light guide plate and LED light bar at curved surface backboard directly bent gradual change is improved
Very little tolerance.When light guide plate is when being compressed in curved surface backboard, stress acts on song of the curved surface backboard directly at bent gradual change
Face backlight abnormal shape light conducting board from deformation is insufficient, curved surface backlight abnormal shape light guide plate occurs and deviation occurs in LED light bar centering, utilize thickening
The light guide plate that interconnecting piece improves directly thickness at bent gradual change increases light guide plate directly at bent gradual change and the dimensional tolerance of LED light bar, has
Effect prevents LED light bar outside dimension from exceeding the edge of light guide plate, ensures that the light of LED sending can avoid out completely into light guide plate
Existing light leakage leads to shadow or speck occur at the straight bent gradual change of light guide plate, and then guarantees the normal use of curved surface backlight module.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
It can the limitation present invention.
Detailed description of the invention
In order to illustrate more clearly of technical solution of the present invention, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without any creative labor,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of basic structure schematic diagram of common curved surface backlight module in the prior art；
Fig. 2 is Fig. 1 mean camber and the structural schematic diagram for facing junction directly；
Fig. 3 is a kind of main view of curved surface backlight abnormal shape light guide plate provided by the embodiments of the present application；
Fig. 4 is a kind of bottom view of curved surface backlight abnormal shape light guide plate provided by the embodiments of the present application；
Fig. 5 is the bottom view of another curved surface backlight abnormal shape light guide plate provided by the embodiments of the present application.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistented with the present invention.On the contrary, they be only with it is such as appended
The example of device and method being described in detail in claims, some aspects of the invention are consistent.
Curved surface backlight abnormal shape light guide plate provided by the embodiments of the present application it is unstamped in curved surface backboard when, curved surface back
Light abnormal shape light guide plate is straight straight panel structure, and main view is as shown in Fig. 3, and bottom view is as shown in Fig. 4.Because of curved surface
The length and width of backlight abnormal shape light guide plate differs larger with thickness, and clearly to show its thickness, attached drawing 3 and 4 is curved surface backlight
Special-shaped light guide plate interrupts structural schematic diagram.Referring to attached drawing 3 and attached drawing 4, curved surface backlight abnormal shape provided by the embodiments of the present application is led
Tabula rasa includes flat part 201 and thickening interconnecting piece 202.Curved surface backlight abnormal shape light guide plate provided by the embodiments of the present application is used for curved surface
In backlight module, it is compressed in curved surface backboard during use, specifically, thickening interconnecting piece 202 for connecting phase
The both ends of adjacent flat part 201, i.e. thickening interconnecting piece 202 are separately connected flat part 201, thicken interconnecting piece 202 and curved surface backboard
Right and wrong junction it is corresponding, flat part 201 can or face part corresponding, flat part 201 corresponding with the curvature portion of curved surface backboard
Size depend on demand of the curved surface backlight module to curved surface backlight abnormal shape light guide plate.The thickness of flat part 201 is less than thick connection
The thickness in portion 202.
Referring to attached drawing 4, curved surface backlight abnormal shape light guide plate provided by the present application is bent when in curved surface backlight module
Face backlight abnormal shape light guide plate is compressed in curved surface backboard, curved surface backlight abnormal shape light guide plate with curved surface backboard warp tendency into
Row deformation is (to carry out 201st area of flat part of 4 mean camber backlight abnormal shape light guide plate of attached drawing by the left side and the right convenient for distinguishing
Point), in which: for the flat part 201 on the left side to corresponding with the curvature portion of curved surface backboard, i.e. the flat part 201 on the left side is close
The curvature portion of curved surface backboard 1；The flat part 201 on the right is to corresponding with the straight parts split-phase of curved surface backboard, i.e., the right is flat
Part is faced directly close to curved surface backboard in plate portion 201；Interconnecting piece 202 is thickeied to face the gradual change that connects directly with the curved surface-of curved surface backboard
Locate it is corresponding, i.e., thickening interconnecting piece 202 faced directly at the gradual change that connects close to the curved surface-of curved surface backboard.
In view of the actual requirement thickness of curved surface backlight abnormal shape light guide plate, the thickness for thickening interconnecting piece 202 is generally planar
1.2-2 times of 201 thickness of portion thickeies the thickness of interconnecting piece 202 that is, when the demand of curved surface backlight abnormal shape light guide plate is with a thickness of 2mm
Degree can be 2.4-4mm.The corresponding thickness installation warrants for thickening interconnecting piece 202 are applicable in the curved surface curvature of curved surface backboard, add
The thickness of thick interconnecting piece 202 and the curved surface curvature of curved surface backboard are positively correlated, it may be assumed that when the curved surface curvature of curved surface backboard is biggish
When, the corresponding thickness for thickening interconnecting piece 202 is relatively large；When the curved surface curvature of curved surface backboard is lesser, accordingly
Thickening interconnecting piece 202 thickness it is relatively small.When the size of curved surface backboard is identical, the curved surface curvature of curved surface backboard
Bigger, the corresponding thickness for thickening interconnecting piece 202 is also bigger.
For ease of description, upper surface is mutually connected in thicken interconnecting piece 202 with 201 light-emitting surface of flat part, to thicken interconnecting piece
202 faces to connect with 201 bottom surface of flat part are lower surface.The upper surface of interconnecting piece 202 is thickeied in the embodiment of the present application under
Surface is even surface, and as shown in Fig. 3, it is flat for thickening the contour line of upper surface and lower surface in the side view of interconnecting piece 202
Sliding curve, the i.e. thickness of thickening interconnecting piece 202 are gradually increased from the place of connection two sides flat part 201 to centre, and thickness is most
General goal may be selected to thicken the close middle position of interconnecting piece 202, and the flat part 201 for thickening interconnecting piece 202 and both ends is smooth respectively
Transition.
A kind of curved surface backlight abnormal shape light guide plate provided by the embodiments of the present application includes that curved surface backlight abnormal shape light guide plate includes flat
Plate portion 201 and thickening interconnecting piece 202, thicken interconnecting piece 202 for connecting adjacent flat part 201, the thickness of flat part 201 is equal
Less than the thickness for thickening interconnecting piece 202.In actual conditions, due to.The thickness of curved surface backlight abnormal shape light guide plate is than relatively thin, in curved surface
During backlight abnormal shape light guide plate and LED light bar centering, dimensional tolerance will be smaller, thickeies interconnecting piece 202 simultaneously by setting
The thickness of the first light guide plate of ratio flat part 201 and the second light guide plate flat part 202 that its thickness is arranged is big, and thickeies interconnecting piece
202 are used at the straight bent gradual change of the light guide plate, improve the curved surface backlight abnormal shape light guide plate at curved surface backboard directly bent gradual change
With the dimensional tolerance of LED light bar.When light guide plate is when being compressed in curved surface backboard, it is straight that stress acts on curved surface backboard
Curved surface backlight abnormal shape light conducting board from deformation at bent gradual change is insufficient, curved surface backlight abnormal shape light guide plate occurs and LED light bar centering occurs
Deviation increases light guide plate directly at bent gradual change and LED using light guide plate that interconnecting piece 202 improves directly thickness at bent gradual change is thickeied
The dimensional tolerance of lamp bar effectively prevent LED light bar outside dimension to exceed the edge of light guide plate, and the light for ensureing that LED is issued can be complete
Into light guide plate, avoiding the occurrence of light leakage leads to shadow or speck occur at the straight bent gradual change of light guide plate, and then guarantees curved surface back
The normal use of optical mode group.
For example, existing light guide plate with a thickness of 2mm, LED light bar with a thickness of 1.4mm, then LED light bar and light guide plate
Centering dimensional tolerance is 0.3mm, and in curved surface backlight abnormal shape light guide plate provided by the embodiments of the present application, the thickness of flat part 201
For 2mm, and thicken interconnecting piece 202 with a thickness of 4mm, the centering dimensional tolerance for thickening interconnecting piece 202 and LED light bar is 1.3mm,
Significantly increase at the straight bent gradual change of curved surface backlight abnormal shape light guide plate to middle dimensional tolerance.Curved surface is acted on when there is stress
Curved surface backlight abnormal shape light guide plate of the backboard directly at bent gradual change occurs that deformation is insufficient and to cannot achieve light guide plate precisely right with LED light bar
It is not in that light leakage leads to shadow or speck occur at the straight bent gradual change of light guide plate because of enough dimensional tolerances when middle, it can
The normal use of curved surface backlight module is effectively ensured.
As curved surface TV is thinned development trend, thickening is provided on curved surface backlight abnormal shape light guide plate provided by the present application
Interconnecting piece 202 thickeies interconnecting piece 202 in use process and is applied at the straight bent gradual change of curved surface backlight abnormal shape light guide plate, both will not
The variation for leading to curved surface backlight abnormal shape light guide plate can also be solved in the direct joint of light guide plate because stress concentration causes to deform
Not enough there is the problem of LED light can not fully enter light guide plate in degree.The curved surface backlight abnormal shape provided in the embodiment of the present application is led
The light conducting plate structure variation more in the prior art of tabula rasa shape is small, and production cost variation is small.
Site is set on the bottom surface of flat part 201 in curved surface backlight abnormal shape light guide plate, the density and shape of site according to
The actual needs of curved surface backlight abnormal shape light guide plate is configured.202 thickness ratio of interconnecting piece is thickeied on curved surface backlight abnormal shape light guide plate
The thickness of flat part 201 is big, and total reflection path of the LED light in thickening interconnecting piece 202 is longer than in flat part 201, is
Guarantee normal light extraction efficiency, increase the dot density for thickening interconnecting piece 202, light reinforcement can be carried out by increasing dot density.Add
The dot density of thick interconnecting piece 202 is according to the thickness and other positions of curved surface backlight abnormal shape light guide plate for thickening interconnecting piece 202
Dot density carries out coordination setting, and the dot density for thickening interconnecting piece 202 increases with the increase for thickening 202 thickness of interconnecting piece
Greatly, that is, the dot density for thickening interconnecting piece 202 and the thickness for thickening interconnecting piece 202 are positively correlated, specific to need to survey by test
Examination selects suitable dot density.Needs are used according to curved surface backlight abnormal shape light guide plate, the site for usually thickening interconnecting piece 202 is close
Degree is 1.2-2 times of 201 dot density of flat part, differs smaller with the thickness at other positions in the thickness for thickening interconnecting piece 202
When, dot density is smaller by variation, on the contrary, dot density will change greatly.
Select horizontal direction in attached drawing 4 for the length direction of curved surface backlight abnormal shape light guide plate, reference surface backlight abnormal shape is led
The length dimension of tabula rasa, thickening the length of interconnecting piece 202 in the longitudinal direction is usually 3-10cm.Thicken the length of interconnecting piece 202
Degree is positively correlated with the curved surface curvature of curved surface backboard, curved surface backlight abnormal shape light guide plate corresponding surface backboard curved surface curvature compared with
When big, the corresponding selection length for thickening interconnecting piece 202 can be larger, i.e. curved surface backlight abnormal shape light guide plate corresponding surface backboard
Curved surface curvature is larger, and the needed length for thickening interconnecting piece 202 can be larger, then can will thicken the length setting of interconnecting piece 202
It is relatively large.Meanwhile when the curved surface curvature of curved surface backboard is identical, the size of corresponding curved surface backlight abnormal shape light guide plate is bigger,
The setting length for thickening interconnecting piece 202 will be bigger.
In the application specific embodiment, the upper surface for thickening interconnecting piece 202 is arc surface；And/or the thickening connects
The lower surface of socket part 202 is arc surface.The shape of the upper contour line and lower contour that thicken interconnecting piece 202 in figure 4 is equal
For circular arc.
Curved surface backlight abnormal shape light guide plate is integrally formed structures, and usual light guide plate is obtained by extrusion mechanism, curved surface backlight
When special-shaped light guide plate not set site, plane and lower plane are symmetrical on light guide plate.So provided in the embodiment of the present application
Curved surface backlight abnormal shape light guide plate in, thicken interconnecting piece 202 upper plane and lower plane it is also symmetrical, i.e., thickening interconnecting piece 202
Upper plane it is identical with lower plane shape, by thicken interconnecting piece 202 upper plane and lower plane be shaped to identical be convenient for
Processing.Optionally, it in the application specific embodiment, thickeies the upper surface of interconnecting piece 202 and thickeies the following table of interconnecting piece 202
Curvature radius is identical.
Curved surface backlight abnormal shape light guide plate provided by the present application squeezes out the spacing between roller in process, by adjusting original
The processing of thickening interconnecting piece 202 can be achieved.It is circular shape then according to the thickness and length for thickening interconnecting piece 202 to reach surface
Degree demand uniformly adjusts the former spacing squeezed out between roller.
In general, the bottom surface of existing curved surface backboard 1 is a kind of to face the-curve form that constitutes of curve form, tool by curved surface-directly
Body, to face directly, both ends are curved surface for centre.More to adapt to its structure, the embodiment of the present application also provides a kind of curved surface backlights
Special-shaped light guide plate, looks up that graph structure is as shown in Fig. 5, and which includes two sections of thickening interconnecting pieces 202 and three sections of flat parts
201, the curved surface-for corresponding to each curved surface backboard 1 faces-curved-surface structure directly, and thickening interconnecting piece 202 therein is corresponding bent respectively
The right and wrong joint of surface backplate 1 is corresponding, is a specific example in the application.
The curved surface backlight abnormal shape light guide plate provided based on the above embodiment, the embodiment of the present application also provides a kind of curved surface back
Optical mode group, the backlight module include curved surface backlight abnormal shape light guide plate provided by the above embodiment.The present embodiment mainly utilizes this
Apply for any curved surface backlight abnormal shape light guide plate that embodiment provides.
The curved surface backlight module provided based on the above embodiment, present invention also provides Curved LCD, the song
Face liquid crystal display includes curved surface backlight module provided by the above embodiment.The present embodiment mainly utilizes the embodiment of the present application to provide
Any curved surface backlight module.
All the embodiments in this specification are described in a progressive manner, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments, and related place is referring to side
The part of method embodiment illustrates.Those skilled in the art will be easy to think after considering the invention of specification and practice here
To other embodiments of the present invention.This application is intended to cover any variations, uses, or adaptations of the invention, these
Variations, uses, or adaptations follow general principle of the invention and do not invent in the art including the present invention
Common knowledge or conventional techniques.The description and examples are only to be considered as illustrative, true scope of the invention and essence
Mind is indicated by the following claims.
It should be understood that the present invention is not limited to the precise structure already described above and shown in the accompanying drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present invention is limited only by the attached claims.
Claims (10)
1. a kind of curved surface backlight abnormal shape light guide plate is used for curved surface backlight module, which is characterized in that including flat part and thicken connection
Portion, in which:
It is connected between adjacent two flat part by the thickening interconnecting piece；
The flat part corresponds to the curvature portion of curved surface backboard and faces part directly, and the thickening interconnecting piece corresponds to the curved surface
The curvature portion and straight parts of backboard divide joint；
The thickness of the flat part is less than the thickness for thickening interconnecting piece.
2. curved surface backlight abnormal shape light guide plate according to claim 1, which is characterized in that the site for thickening interconnecting piece is close
Degree is positively correlated with the thickness for thickening interconnecting piece.
3. curved surface backlight abnormal shape light guide plate according to claim 1 or 2, which is characterized in that the net for thickening interconnecting piece
Dot density is 1.2-2 times of the dot density of the flat part.
4. curved surface backlight abnormal shape light guide plate according to claim 1, which is characterized in that it is described thicken interconnecting piece length with
The curved surface curvature of the curved surface backboard is positively correlated；And/or the curved surface of the thickness for thickening interconnecting piece and the curved surface backboard
Curvature is positively correlated.
5. curved surface backlight abnormal shape light guide plate according to claim 1 or 4, which is characterized in that the length for thickening interconnecting piece
Degree is 3-10cm.
6. curved surface backlight abnormal shape light guide plate according to claim 1 or 4, which is characterized in that the thickness for thickening interconnecting piece
Degree is 1.2-2 times of the flat part thickness.
7. curved surface backlight abnormal shape light guide plate according to claim 1, which is characterized in that the upper surface for thickening interconnecting piece
For arc surface；And/or the lower surface for thickening interconnecting piece is arc surface.
8. curved surface backlight abnormal shape light guide plate according to claim 1, which is characterized in that the upper surface for thickening interconnecting piece
It is identical as the thickening following table curvature radius of interconnecting piece.
9. a kind of curved surface backlight module, which is characterized in that the curved surface backlight module includes described in claim 1-8 any one
Curved surface backlight abnormal shape light guide plate.
10. a kind of Curved LCD, which is characterized in that the Curved LCD includes song as claimed in claim 9
Face backlight module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710866216.XA CN107367787B (en) | 2017-09-22 | 2017-09-22 | Curved surface backlight abnormal shape light guide plate, curved surface backlight module and Curved LCD |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710866216.XA CN107367787B (en) | 2017-09-22 | 2017-09-22 | Curved surface backlight abnormal shape light guide plate, curved surface backlight module and Curved LCD |
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| Publication Number | Publication Date |
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| CN107367787A CN107367787A (en) | 2017-11-21 |
| CN107367787B true CN107367787B (en) | 2019-06-18 |
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| CN108716631A (en) * | 2018-07-26 | 2018-10-30 | 合肥惠科金扬科技有限公司 | Segmented backlight lamp, backlight module and display |
| CN115273663B (en) * | 2022-07-19 | 2024-03-26 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1553227A (en) * | 2003-06-04 | 2004-12-08 | 鸿富锦精密工业（深圳）有限公司 | Light conducting board and area source apparatus |
| CN101216635A (en) * | 2008-01-17 | 2008-07-09 | 友达光电股份有限公司 | LCD device, photoelectric device and process for production thereof |
| CN202196197U (en) * | 2011-09-16 | 2012-04-18 | 北京京东方光电科技有限公司 | Irregularly-shaped light guide plate, backlight module and liquid crystal display device |
| CN104090425A (en) * | 2014-07-02 | 2014-10-08 | 深圳市华星光电技术有限公司 | Liquid crystal display device and curved surface backlight module thereof |
| CN104748015A (en) * | 2015-04-09 | 2015-07-01 | 京东方科技集团股份有限公司 | Backlight module and diffusion plate of curve display device and curve display device |
| KR20150109743A (en) * | 2014-03-20 | 2015-10-02 | 엘지디스플레이 주식회사 | Curved display device |
| CN204785854U (en) * | 2015-06-16 | 2015-11-18 | Tcl王牌电器(惠州)有限公司 | Curved surface structure in a poor light and LCD |
| CN105824149A (en) * | 2015-01-23 | 2016-08-03 | 三星显示有限公司 | Curved display device |
-
2017
- 2017-09-22 CN CN201710866216.XA patent/CN107367787B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1553227A (en) * | 2003-06-04 | 2004-12-08 | 鸿富锦精密工业（深圳）有限公司 | Light conducting board and area source apparatus |
| CN101216635A (en) * | 2008-01-17 | 2008-07-09 | 友达光电股份有限公司 | LCD device, photoelectric device and process for production thereof |
| CN202196197U (en) * | 2011-09-16 | 2012-04-18 | 北京京东方光电科技有限公司 | Irregularly-shaped light guide plate, backlight module and liquid crystal display device |
| KR20150109743A (en) * | 2014-03-20 | 2015-10-02 | 엘지디스플레이 주식회사 | Curved display device |
| CN104090425A (en) * | 2014-07-02 | 2014-10-08 | 深圳市华星光电技术有限公司 | Liquid crystal display device and curved surface backlight module thereof |
| CN105824149A (en) * | 2015-01-23 | 2016-08-03 | 三星显示有限公司 | Curved display device |
| CN104748015A (en) * | 2015-04-09 | 2015-07-01 | 京东方科技集团股份有限公司 | Backlight module and diffusion plate of curve display device and curve display device |
| CN204785854U (en) * | 2015-06-16 | 2015-11-18 | Tcl王牌电器(惠州)有限公司 | Curved surface structure in a poor light and LCD |
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| CN107367787A (en) | 2017-11-21 |
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