CN205809486U - The lens of side-light type display device and comprise the display device of these lens - Google Patents
The lens of side-light type display device and comprise the display device of these lens Download PDFInfo
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- CN205809486U CN205809486U CN201620401452.5U CN201620401452U CN205809486U CN 205809486 U CN205809486 U CN 205809486U CN 201620401452 U CN201620401452 U CN 201620401452U CN 205809486 U CN205809486 U CN 205809486U
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Abstract
This utility model relates to a kind of lens by being made up of sphere and aspheric surface and reduces sensing angle, thus improve the lens of the side-light type display device of the light segregation phenomenon of light in part and the display device comprising these lens, the lens configuration of described side-light type display device dissipates on direction at the light of light source, sensing angle for the light that regulation dissipates from light source, described light source is configured at display device side, wherein, described lens include: first refractive face, opposed with described light source, and protrude towards described light source side；Face, next door, continues from described first refractive face, and extends towards described light source side；Reflecting surface, forms the gabarit of described lens, and reflects the light inciding inside；Refraction reflecting surface, continues from described reflecting surface, for the light inciding inside is reflected and reflected；And second plane of refraction (137), continue from described refraction reflecting surface, and protrude towards the opposition side of described light source.
Description
Technical field
This utility model relates to the lens of side-light type display device and comprises the display device of these lens, is specifically related to
A kind of lens by being made up of sphere and aspheric surface reduce sensing angle, thus improve the side of the light segregation phenomenon of light in part
The lens of light formula display device and comprise the display device of these lens.
Background technology
Flat pannel display (FPD；Flat Panel Display) device be widely used in TV, mobile phone, notebook computer, flat board electricity
On the equipment such as brain, there is Plasmia indicating panel (PDP；Plasma Display Panel), liquid crystal display (LCD；Liquid
Cristal Display) device, organic light emitting display (OLED；Organic Light-Emitting Display) device, electricity
Swimming display (electrophoretic display) device etc..
This panel display apparatus possesses the display floater of show image, and for display panels etc., panel
Self cannot generate light, therefore possess the back light unit to panel supply light.
According to the position of light source, back light unit can be divided into side-light type (edge light type) and straight-down negative (direct
Light type), and as light source, it is used mostly LED (Light Emitting Diode: light emitting diode).
For edge-lit backlight unit, owing to receiving light from the light source being arranged in sidepiece, using will the most always
Light from sidepiece is transformed into the light guide plate on display floater direction.Recently, developing do not use light guide plate and by reflection
Sheet transfers light to the technology on display floater direction.
Figure 11 a is the cross-sectional schematic figure of the existing side-light type display device removing light guide plate, and Figure 11 b illustrates LED
Pointing to the chart at angle, Figure 11 c is the accompanying drawing of the optical plane distribution illustrating the display floater in Figure 11 a.
With reference to Figure 11 a, existing side-light type display device 100P includes display floater 10, optical sheet set 20, reflector plate 30
And light source 40.These elements are built in upper cover 61 and lower cover 62, and separate display surface by shaping frame 63
Plate 10 and optical sheet set 20.
Such as, display floater 10 can be display panels, and can stack diffusion sheet, prismatic lens etc. and form light
Learn sheet group 20.Reflector plate 30 is arranged in the back side of optical sheet set 20 to form internal space S, and incident light is entered by its medial surface
Row reflection.
As light source 40, it is possible to use LED.In side-light type display device 100P, light source 40 is arranged in display floater 10
Side, and to middle body irradiate light.By reflector plate 30, make from the light of light source 40 irradiation towards display floater 10.Thus,
Even if not having light guide plate also to be able to use in place of the light of light source 40 arrives away from light source, and reflected by reflector plate 30 and be supplied to
On display floater 10.
Understanding with reference to Figure 11 b, the sensing angle as the LED of light source 40 shows about about 120 °.Due to this LED
Sensing angle characteristic, as shown in fig. 11c, near light source 40 occur light segregation phenomenon.That is, there is a kind of light segregation problem, also
That is the light coming from light source 40 cannot pass near the central authorities of display floater 10 out and away, and to outside near light source 40
Release.
In order to eliminate this smooth segregation phenomenon, occur in that and increase the method at interval between reflector plate 30 and optical sheet set 20,
But thus cause the slimming being difficult to display device itself, therefore, it is difficult to adopt in this way.If additionally, keeping existing
Interval between some reflector plates 30 and optical sheet set 20, then make the large-scale of display device because the diffusion length of light source 40 is not enough
Change is restricted.
Patents document
Korean Patent Application No. 10-2012-0026165
Utility model content
Technical problem to be solved
This utility model is in order to solve above-mentioned problem and to propose, technical problem to be solved in the utility model
Being to provide a kind of side-light backlight device light lens removing light guide plate and the display device comprising these lens, it leads to
Cross and include that sphere and aspheric lens, reflector plate and optical sheet reduce sensing angle, thus the light improving light in part is inclined
Poly-phenomenon.
Technical problem of the present utility model is not limited to above-mentioned technical problem, by following record, ability
The technical staff in territory can know other technical problem NM clearly.
Solve the scheme of technical problem
In order to solve described technical problem, the side-light type display device that an embodiment of the present utility model relates to saturating
Mirror, the light being arranged in light source dissipates on direction, and for the sensing angle of the light that regulation dissipates from light source, described light source is configured at display
Device side, wherein, described lens include: first refractive face, opposed with described light source, and protrude towards described light source side；
Face, next door, continues from described first refractive face, and extends towards described light source side；Reflecting surface, forms the gabarit of described lens,
And the light inciding inside is reflected；Refraction reflecting surface, continues from described reflecting surface, for inciding inside
Light reflects and reflects；And second plane of refraction 137, continue from described refraction reflecting surface, and towards the phase of described light source
Toss about protrusion, relative to the optical axis of the light dissipated from described light source and the trunnion axis that is perpendicular to described optical axis, face, described next door
And the angle between described trunnion axis B1 is more than or equal to 75 degree and less than or equal to 90 degree.
According to another feature of the present utility model, the angle between described first refractive face and described trunnion axis B2 can be big
In 0 degree and less than 20 degree, the angle between tangent line and the described trunnion axis B3 of the end of described second plane of refraction can be more than
30 degree and less than 70 degree.
According to further feature of the present utility model, the angle between described refraction reflecting surface and described trunnion axis B3 can be big
In 0 degree and less than 25 degree.
According to further feature of the present utility model, described reflecting surface can be to dissipating from described light source and light source and described light
The angle between the axle A light more than or equal to 30 degree reflects.
According to further feature of the present utility model, described first refractive face, face, next door, reflecting surface, refraction reflecting surface and
Second plane of refraction can be respectively structured as sphere or aspheric surface.
In order to solve above-mentioned technical problem, the display device that an embodiment of the present utility model relates to includes: display floater；
Optical sheet set, is arranged in the back side of described display floater；Reflector plate, separates configuration with the back side of described optical sheet set, and with institute
State optical sheet set and together form inner space, and make light scattering, so that light is irradiated in described optical sheet set；Light source, joins
Put the sidepiece at described display floater, irradiate light to the middle body of described display floater；Lens, are arranged in the upper of described light source
Face；And bottom, the described inner space formed together is surrounded with described optical sheet set.
According to another feature of the present utility model, described optical sheet set can include having the surface roughness of 0 to 2 μm
Diffusion sheet.
According to further feature of the present utility model, described reflector plate can include microballon (Bead), and described reflector plate
Can have the surface roughness of 0 to 10 μm.
According to further feature of the present utility model, the glossiness (Gloss) of described reflector plate can be 20 to 30.
According to further feature of the present utility model, described microballon can include polyethylene, acrylic, nylon and these materials
At least one material in the mixture of material.
According to further feature of the present utility model, described bottom can be made up of horizontal part and rake.
According to further feature of the present utility model, described horizontal part can have L-value based on relational expression 1, described inclination
Angle between portion and described horizontal part can be θ based on relational expression 2,
[relational expression 1]
β=correction constant (1.394)
[relational expression 2]
Wherein, D is the thickness of display device, and T is the display device entire length dissipating on direction at light source, points to angle
It it is the sensing angle of light source by lens.
According to further feature of the present utility model, the length of described horizontal part can be the L calculated according to described relational expression 1
The 80% to 120% of value.
According to further feature of the present utility model, multiple described light sources can the one side of described display floater each other every
Turn up the soil and be configured to string, be configured at the light source of middle section and outer peripheral areas and the distance of the spaced apart of adjacent light source, i.e. spacing
Can differ, wherein, in described middle section, the one side at described display floater configures string light source, described outer peripheral areas
In on the basis of the outer part of the one side of described display floater configure light source.
According to further feature of the present utility model, the spacing of the light source in described outer peripheral areas can be described middle section
In light source spacing 70% to 99%.
According to further feature of the present utility model, at middle section to outer peripheral areas, the plurality of light source is divided into from display
The region of the central part of the one side of panel to more than four of outer part, and in the plurality of region, described central area
The average headway of the light source in territory can be maximum, and the average headway of the light source in region adjacent with described outer peripheral areas can be
Little.
According to further feature of the present utility model, the plurality of light source from described middle section to described outer peripheral areas,
The spacing being separated by can change, although from described middle section to described outer peripheral areas, and spacing tends to diminish, and can deposit
Big flex point is become at least one place's spacing.
According to further feature of the present utility model, in the one side central part and outer part of described display floater, described
Flex point is configurable near described outer part.
According to further feature of the present utility model, can include high reflector plate, it is arranged on inner space, and its light is anti-
Penetrate the rate luminous reflectance higher than described reflector plate, be used for the luminous reflectance from described light source to the position away from described light source,
To improve the brightness of described display floater.
According to further feature of the present utility model, when described display floater is along a certain axle trisection and along another axle trisection
And when forming nine regions, can be arranged in three adjacent with described light source region by described high reflector plate is aobvious with described
In showing two regions that the periphery of panel is adjacent.
According to further feature of the present utility model, when described display floater is along a certain axle trisection third along another axle
Point and when forming nine regions, described high reflector plate can be arranged in three regions that described light source is farthest with described
The side of the described display floater in two regions that the periphery of display floater is adjacent.
The details of other embodiments are included in detailed description and accompanying drawing.
Utility model effect
The lens of side-light type display device of the present utility model and comprise the display device of these lens from back light unit
In remove light guide plate, and the quantity of light source can be reduced by lens, therefore, it is possible to save the fee of material of product, simultaneously can
Realize the lightweight of product.
Additionally, display device of the present utility model tends to the wedge gradually reduced away from light source by width of light source
(wedge) shape structure, it is possible to realize the slimming of product and increase appearance design key element.
The effect that this utility model relates to is not limited to the content of above illustration, and the most various effect is included in this theory
In bright book.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic figure for display device that an embodiment of the present utility model relates to is described.
Fig. 2 is the sectional view of the lens in explanatory diagram 1.
Fig. 3 is the concept map of the shape that each surface of the lens in explanatory diagram 2 is formed.
Fig. 4 is the amplified sectional view of the reflector plate in explanatory diagram 1.
Fig. 5 is the amplified sectional view of the diffusion sheet in explanatory diagram 1.
Fig. 6 is the sectional view of the bottom in explanatory diagram 1 and reflector plate.
Fig. 7 is the chart of the concept map of the section illustrating the IIV-IIV ' part in explanatory diagram 1.
Fig. 8 is the form of the luminance uniformity of the display device being represented the spacing corresponding to light source by numerical value.
Fig. 9 is the chart of the spacing of the light source non-linearly illustrating each region shown in Fig. 7.
Figure 10 a and Figure 10 b is the zoning for illustrating on display floater and is arranged in the interior zone of institute's zoning
The concept map of high reflector plate and illustrate the concept map of Luminance Distribution of display floater correspondingly.
Figure 11 a is the cross-sectional schematic figure of the existing side-light type display device removing light guide plate, and Figure 11 b illustrates LED
Pointing to the chart at angle, Figure 11 c is the accompanying drawing of the optical plane distribution illustrating the display floater in Figure 11 a.
Reference:
100: display device 110: display floater
120: light source 130: collimating lens
131: face, next door 133: reflecting surface
135: first refractive face 137: the second plane of refraction
139: refraction reflecting surface 140: reflector plate
141: microballon 143: coating
145: reflecting surface 147: basal layer
150: bottom 200: optical sheet set
210: diffusion sheet 211: dispersant
213: diffusing surface 215: minute surface
220,230: cylindrical lens S: inner space
Detailed description of the invention
By referring to accompanying drawing and the embodiment being described in detail later, advantage of the present utility model and feature and its reach method
Will become clear and definite.But, this utility model is not limited to embodiments disclosed below, but can be with various not similar shapes
Formula realizes, it is provided that the present embodiment is intended merely to make this utility model open complete, and to the tool of this utility model art
The technical staff having general knowledge intactly passes on category of the present utility model, and this utility model is only by the category of claim
Define.
For illustrating that the shape disclosed in the accompanying drawing of this utility model embodiment, size, ratio, angle, quantity etc. are
Exemplary, this utility model is not limited to illustrated item.Additionally, when this utility model is illustrated, if
Thinking makes objective of the present utility model unclear for illustrating of relevant known technology, then description is omitted.When
When using in this specification " including ", " having ", " composition " of mentioning etc., unless use ' only ', otherwise can add other portion
Point.When representing element in the singular, unless there are the clearest and the most definite specified particular, otherwise include containing multiple situations.
When explaining element, extra expressing record even if not existing, being also construed to comprise range of error.
When position relationship is illustrated, such as, the position relationship of two parts is illustrated for "～on ", "～
Top ", "～bottom ", "～other " etc. time, unless used " just " or " directly ", the most all right
There are more than one other parts.
When element or layer are expressed as being positioned at (on) on other element or layer, including just on other element
Situation and other layer or other element situation between.
Although use first, second etc. describes various element, but these elements are not by these terms
Limit.These terms are used only to distinguish an element and another element.Therefore, in technology of the present utility model
Within thought, the first element mentioned below can also be the second element.
In entire description, identical reference represents identical element.
Size and the thickness of each structure shown in accompanying drawing illustrate for ease of explanation, and this utility model is not necessarily
It is confined to size and the thickness of illustrated structure.
For each feature of each embodiment of the present utility model, a part or entirety can be combined with each other or
Person combines, and can carry out various linkage and driving technically, in order to it will be appreciated by those skilled in the art that for respectively
For individual embodiment, can implement independently can also be implemented together according to dependency relation.
Below, referring to the drawings, various embodiments of the present utility model are described in detail.
Fig. 1 is the cross-sectional schematic figure for display device that an embodiment of the present utility model relates to is described.
The display device 100 that an embodiment of the present utility model relates to include display floater 110, light source 120, lens 130,
Reflector plate 140, bottom 150 and optical sheet set 200.
Display floater 110 is arranged in the front of display device 100.In this example it is shown that panel 110 can be LCD
(Liquid Crystal Display: liquid crystal display), it needs the light supply of the back side illuminaton light at display floater 110
Portion.
Optical sheet set 200 is arranged in the back side of display floater 110.Constitute by stacking multiple optical sheets 210,220,230
Optical sheet set 200.About optical sheet set 200, diffusion sheet 210 can be configured with internal space S in place of it contacts, and at it
Upper layer part configuration cylindrical lens 220,230.For diffusion sheet 210, will be described in detail with reference to Fig. 5.
Reflector plate 140 separates configuration with the back side of optical sheet set 200, together forms internal space S with optical sheet set 200,
And make light scattering, so that light is irradiated in optical sheet set 200.Referring in particular to Fig. 1, reflector plate 140 is arranged in bottom 150
On.Reflector plate 140 can also maintain the rigidity to a certain degree that can keep own form.Or, it is possible to so that reflector plate 140
It is configured at bottom 150, the top of bottom 150 can be placed according to the shape of bottom 150.About reflector plate 140, will be with reference to Fig. 4
It is described in detail.
Light source 120 is arranged in the sidepiece of display floater 110, and irradiates light to the middle body of display floater 110.Concrete and
Speech, light source 120 may be located at the bottom of display floater 110, and in the inner side of display device 100 towards display device 100
Opposite side irradiates light.Owing to being disposed on the side of display device 100 and to the class of the opposite side diverging light of display device 100
Type, is therefore side-light type display device 100.Light source 120 can be LED or LED package.
Lens 130 are arranged in above light source 120.The effect of lens 130 is, the finger of the light of light source 120 is come from regulation
To angle.Specifically, on the basis of LED, the sensing angle of the light coming from light source 120 can be about 120 degree.But, by thoroughly
The sensing angle of the light after mirror 130 about becomes 6 degree.Therefore, lens 130 reduce the sensing angle of light source 120, make light source 120 simultaneously
Light passes on the reflector plate 140 away from light source 120 or display floater 110.About the shape of lens 130, will with reference to Fig. 2 and
Fig. 3 is described in detail.
Bottom 150 is formed as, and together surrounds, with optical sheet set 200, the internal space S formed.The outside of bottom 150 from
Outer protection display device 100, and within it configure reflector plate 140.Bottom 150 can also be formed outside display device 100
Table, but can also arrange further in the outside of bottom 150 around at least some of of bottom 150 and form display device
The housing of 100 appearances.About bottom 150, will be described in detail with reference to Fig. 6.
Fig. 2 is the sectional view of the lens in explanatory diagram 1.Fig. 3 is each surface institute shape of the lens in explanatory diagram 2
The concept map of the shape become.
As it has been described above, the lens 130 that an embodiment of the present utility model relates to are the lens of side-light type display device
130, its light being arranged in light source 120 dissipates on direction, and with the sensing angle of the light that regulation dissipates from light source 120, described light source is joined
It is placed in display device side.Wherein, lens 130 can be by the plastics that refractive index is 1.45 to 1.60, glass and these materials
Mixture in a certain material formed.
With reference to Fig. 2 and Fig. 3, lens 130 include face, next door 131, supporting surface 132, reflecting surface 133, first refractive face
135, the second plane of refraction 137 and refraction reflecting surface 139.On the other hand, each surface of lens 130 can be relative to from light source
The optical axis A of 120 light dissipated and be perpendicular to optical axis and parallel to each other three trunnion axis B1, B2, B3 form the angle of regulation
Degree.Wherein, it is axle parallel to each other, the most hereinafter referred to as trunnion axis due to three trunnion axis B1, B2, B3.
First refractive face 135 is opposed with light source 120, and protrudes towards light source 120 side.The big portion dissipated from light source 120
Light splitting can incide the inside of lens 130 by first refractive face 135.Preferably, central shaft and first folding of light source 120 are connected
Penetrate angle that the straight line of face 135 end 135a and optical axis A formed less than 30 degree (θ 2 < 30 degree).Thus, it is possible to determine first refractive
The width in face 135.This is to be determined to incide the suitable light quantity in first refractive face 135 from the light that light source 120 dissipates
One of method.
Additionally, the tangent line at the end 135a in first refractive face 135 can be formed more than 0 degree and less than 20 with trunnion axis B2
The angle (0 degree < θ 3 < 20 degree) of degree.Thus, first refractive face 135 can make anaclasis, so that inciding first refractive face 135
Light incides lens 130 and points to angle and diminish.
Face, next door 131 continues from first refractive face 135, and extends towards light source 120 side.Face, next door 131 is and light source
120 adjacent sides, the light dissipated from light source 120 can incide lens 130 inside by face, next door 131.Face, next door 131 will
Light source 120 and first refractive face 135 are spaced from each other.Face, next door 131 and trunnion axis B1 are formed more than or equal to 75 degree less than or equal to 90
The angle (75 degree≤θ 1≤90 degree) of degree.Thereby, it is possible to make the light dissipated from light source 120 incide lens 130 by face, next door 131
Internal such that it is able to by reflecting surface 133, easily incident light to be reflected.
Reflecting surface 133 constitutes the gabarit of lens 130, and reflects the light inciding inside.Reflecting surface 133 is formed
The outside appearance of lens 130.By reflecting surface 133, lens 130 can adjust the sensing angle of the light dissipated from light source 120.Another
Aspect, reflecting surface 133 can be formed as, to dissipating from light source 120 and angle between light source and optical axis A is more than or equal to 30 degree
Light reflects.As it has been described above, the light that the angle formed with optical axis A from the light that light source 120 dissipates is less than 30 degree can pass through
First refractive face 135 is incident.From the light that light source 120 dissipates, the angle light more than 30 degree formed with optical axis A, passes through next door
The inside of lens 130 is incided in face 131, and incident light is by reflecting surface 133, towards refraction reflecting surface 139 or the
Two planes of refraction 137 reflect.
Refraction reflecting surface 139 continues from reflecting surface 133, and it makes incide the anaclasis of inside and reflect, thus diffuses to
The outside of lens 130.Refraction reflecting surface 139 is arranged in and incides the part that the light within lens 130 dissipates.At refraction reflecting surface
139 and second between plane of refraction 137, the angle between the end 139a and trunnion axis B3 of refraction reflecting surface 139 can more than 0 degree and
Angle less than 25 degree (0 degree < θ 5 < 25 degree).Can be according to refraction reflecting surface by reflecting the sensing angle of the light that reflecting surface 139 dissipates
The increase of the angle of 139 and reduce.
Second plane of refraction 137 continues from refraction reflecting surface 139, and towards the opposition side protrusion of light source 120.Second refraction
Tangent line at the end 137a in face 137 and trunnion axis B3 can form the angle (30 degree of < θ 4 < 70 more than 30 degree and less than 70 degree
Degree).Thereby, it is possible to set the protrusion degree of the second plane of refraction 137.Protrusion degree according to the second plane of refraction 137, it is possible to regulation
The sensing angle of the light by dissipating after lens 130.
Supporting surface 132 is to connect the face between face, next door 131 and reflecting surface 133.Supporting surface 132 is configurable to, by with
It is configured with the face support that the face of light source 120 is identical, and makes lens 130 cover light source 120.On the other hand, with Fig. 2 and Fig. 3 institute
The difference shown, can be arranged in the rear in the face being configured with light source 120, it is also possible to be arranged in and be configured with light source by supporting surface 132
The front in the face of 120.This can regulate according to design needs.
Wherein, first refractive face 135, face, next door 131, reflecting surface 133, refraction reflecting surface 139 and the second plane of refraction 137
Sphere or aspheric surface can be respectively structured as.
Fig. 4 is the amplified sectional view of the reflector plate in explanatory diagram 1.
The reflector plate 140 that an embodiment of the present utility model relates to includes microballon 141, coating 143 and basal layer 147.
Microballon 141 can be only fitted to the top of basal layer 147, so that the surface of reflector plate 140 is formed rough
Concavo-convex, and coated 143 coverings.Microballon 141 is preferably smaller than equal to the size of 5 μm.Convex-concave surface is formed by microballon 141
Reflector plate 140 can make the light diffuse-reflectance of incidence.On the other hand, microballon 141 can include polyethylene, acrylic, nylon and
At least one material in the mixture of these materials.
Coating 143 can be formed as, and covers microballon 141 and basal layer 147.The surface of coating 143 is formed has regulation
The reflecting surface 145 of the surface roughness of degree.Reflecting surface 145 can have the surface roughness of 0 to 10 μm.Wherein, table
Surface roughness (Surface Roughness) be represent the existing degree of micro concavo-convex the most on a surface of an, surface coarse
The value of degree.When representing degree of roughness, by the plane cutting surface vertical with surface, when observing its cross section, can be formed certain
One curve, takes the minimum point height to peak of this curve, referred to as peak roughness, and meansigma methods utilizing curve etc. can
Measure and calculate table surface roughness.
The light in coating 143 reflection can not incide basal layer 147.The material forming basal layer 147 can be to absorb
The material of the impact between itself and the bottom 150 being configured with reflector plate 140.Microballon can be coated with on the top of basal layer 147
141 and coating 143.The light inciding basal layer 147 can reflect at the lower surface of basal layer 147, then by coating 143
Diffuse to outside.
The glossiness (Gloss) of reflector plate 140 can be 20 to 30.Wherein, glossiness is to represent body surface normal reflection
The property qualitative attribution of light.This glossiness depends on the composition material of body surface, degree of roughness, shape.Reflector plate 140 is
Outer layer is coating 143, and therefore the glossiness of the reflecting surface 145 of coating 143 can be 20 to 30.
Fig. 5 is the amplified sectional view of the diffusion sheet in explanatory diagram 1.
The diffusion sheet 210 that an embodiment of the present utility model relates to can be formed as the shape that upper surface is different from lower surface
Shape.
Specifically, the upper surface of diffusion sheet 210 can form diffusing surface 213.The effect of diffusing surface 213 is,
Form uneven surface so that the diffusion amplification of light so that by the light of diffusion sheet 210 towards display floater 110 dissipate time
It is able to ensure that more uniform brightness and illumination.
Then, the lower surface of diffusion sheet 210 can form minute surface 215.The lower surface of diffusion sheet 210 is that light incides diffusion
Face in sheet 210.Minute surface 215 is preferably formed into the face that flatness is high, in order to reduces the reflection of light, thus absorbs more light.
As it has been described above, the surface roughness of diffusion sheet 210 is preferably 0 to 2 μm, in order to more light is absorbed in diffusion sheet 210
Portion.
Additionally, diffusion sheet 210 can include dispersant 211.Dispersant 211 is irregularly arranged in diffusion sheet 210
Portion.The light inciding diffusion sheet 210 bumps against diffuse-reflectance after dispersant 211.Therefore, light can be unrelated with the position of incident light
Ground is the diffuse-reflectance spreading because of dispersant 211 in the inside of diffusion sheet 210.
Fig. 6 is the sectional view of the bottom in explanatory diagram 1 and reflector plate.
The bottom 150 that an embodiment of the present utility model relates to can be made up of horizontal part a and rake b.Now, level
The length of portion a can be L-value based on relational expression 1, and rake b and horizontal part can form angle, θ based on relational expression 2.
[relational expression 1]
β=correction constant (1.394)
[relational expression 2]
Wherein, L represents the length of horizontal part a.D represents the thickness of display device 100.The size of D is according to display device 100
Size and change.D can be the thickness of about 10mm to 50mm.T represents the display device dissipated on direction of light source 120
Entire length.The size of T changes according to the size of display device 100, can be the length of about 300mm to 1000mm.Refer to
The sensing angle of the light source 120 after angle represents by lens 130.Further, θ therein represents the θ 6 in accompanying drawing.
That is, the part that bottom 150 is included in close to light source 120 is formed as the horizontal part a of level and from away from light source 120
Part more than predetermined distance starts the rake b near display floater 110 side.In bottom 150, away from light source 120 specify away from
It is partially toward the bending of display device direction from above, thus when from horizontal part a to rake b, the inside on rake b top
Space S tends to diminish.
On the other hand, the length of horizontal part can be the 80% to 120% of the L-value calculated according to above-mentioned relational expression 1.Water
The length in flat portion can be confirmed as and the length L-value calculated according to relational expression 1 because of the error in design, commercialization process etc.
The value of approximation.That is, the length of horizontal part can be confirmed as because of the error in design, commercialization process etc., is passing through relation
There is on the basis of the value that formula 1 draws the range of error of about 20%.
Bottom 150 forms horizontal part a and rake b based on above-mentioned relational expression 1 and relational expression 2 such that it is able to make
Effectively reflected towards display floater 110 by the light dissipated after lens 130.
Additionally, due to bottom 150 has more is remote from light source 120 just closer to wedge (wedge) the shape knot of display floater 110
Structure, therefore has the slimming realizing display device 100 and the advantage that can increase appearance design key element.
In the present embodiment, owing to reflector plate 140 is placed on bottom 150, along with bottom 150 is by horizontal part a and rake b
Constituting, reflector plate 140 is made up of horizontal part and rake too.But, exist many between reflector plate 140 and bottom 150
During remaining interval, when i.e. the shape of reflector plate 140 is different from the shape of bottom 150, reflector plate 140 is preferably by based on above-mentioned relation formula
Horizontal part and rake constitute.That is, reflector plate 140 forms horizontal part and rake is critically important.This is because, above-mentioned
Relational expression makes the light by dissipating after lens 130 effectively reflect towards display floater 110.
On the other hand, as it has been described above, bottom 150 can form the profile of display device 100.However, it is also possible at bottom
The outside of 150 farther includes to be formed the extra housing of display device 100 profile.
Fig. 7 is the chart of the concept map of the section illustrating the IIV-IIV ' part in explanatory diagram 1.Fig. 8 be illustrate right
Should be in the form of the luminance uniformity of the display device of the spacing of light source.
First, with reference to Fig. 7, it is the concept map of the section partly of the IIV-IIV ' in explanatory diagram 1.It is, in order to
It is easy to explanation, eliminates the lens shown in Fig. 1.
With reference to Fig. 7, multiple light sources 120 are configured to string spaced apart relation to each other at the one side of display floater.It is arranged in central authorities
The light source 120 of region 121 and outer peripheral areas 125 distance spaced apart with adjacent light source 120, i.e. spacing differ, wherein, and institute
Stating middle section 121 and configure light source 120 on the basis of the one side central part of display floater, described outer peripheral areas 125 is with display
Light source 120 is configured on the basis of the outer part of the one side of panel.Wherein, middle section 121 refers to configure the width of display floater
The adjacent area in the region of the central shaft C in direction.
Specifically, multiple light sources 120 are configured to string spaced apart relation to each other at the one side of display device.At middle section
121 arrive outer peripheral areas 125, and multiple light sources 120 are divided into more than four from the one side central part of display floater to outer part
Region 121,122,123,124,125.
Middle section 121 is to include the central shaft C of display floater and towards the identical region of the length of both sides.Additionally,
Remaining region 122,123,124,125 is the district on the direction, side relative to display floater central shaft C with equal length
Territory.
This regional 121,122,123,124,125 has equidistantly each other.That is, each region 121,122,123,
124,125 region preferably with equal length.Specifically, as a length of L in a region, from display floater
Mandrel C is to a length of 4L+1/2L of the outer part of display floater.Further, the entire length of display floater is 9L.But, for
The reasons such as the reason in the shape of display device, design, each region 121,122,123,124,125 can also have a little difference
Away from.Now can be configured to, in multiple regions, the spacing of the light source 120 in middle section 121 is maximum, and and outer peripheral areas
The spacing of the light source 120 in 125 adjacent regions 124 is minimum.
For example, referring to Fig. 7, for from being arranged in the light source 120 of middle section 121 to the light being arranged in outer peripheral areas 125
Source 120, is in turn divided into first area to the 5th region 121,122,123,124,125 by the region of configuration light source 120.This
Time, in order to improve the light that dissipates from light source 120 in display device brightness on the whole, light source 120 is configured to, makes in each region
Spacing P1, P2, P3, P4, P5 be according to first area 121, second area 122, the 3rd region 123, the 5th region 125 and
The order in four regions 124 reduces.
First area 121 is the middle section 121 corresponding with the middle body of display floater, therefore from being arranged in both sides
Light source 120 in second area the 122, the 3rd region 123 receives light.Therefore, by from 123, second area the 122, the 3rd region
The light dissipated, is able to ensure that enough light quantities in first area 121, therefore, it is possible to light source 120 density reduced in region.Now,
The light source 120 density reduction of first area 121 refers to, spacing P1 of the light source 120 being arranged in first area 121 becomes big.
On the other hand, when not possessing light guide plate, made the anaclasis dissipated from light source 120 by lens.Now,
The sensing angle of the light reflected by lens about becomes 94 degree.This sensing angle makes the center from display device tend to peripheral, goes out
The interval overlapping from the light of adjacent light source 120 is more and more less, so that the light quantity in this region reduces.That is, light quantity is along with becoming
Reduce to the periphery.Therefore, in order to improve the light quantity reduced in periphery, preferably improve in the 4th region 125, region the 124, the 5th
Light source 120 density.Thereby, it is possible to improve the luminance uniformity that display device is overall.
And light source 120 density in the 4th region 124 is higher than the reason of light source 120 density in the 5th region 125, illustrates such as
Under.
First, when light source 120 density in the 5th region 125 excessively improves, the brightness of display device entirety has on the contrary can
Can reduce.Specifically, the sensing angle of the light source 120 being arranged in the 5th region 125 is originally used for 120 degree, and by referring to after lens
94 degree are about become to angle.By the considerable light quantity of lens towards the side wall side of display device.Now, display device is passed through
Sidepiece the loss of light likely can occur.This just becomes the reason that in display device, back light unit efficiency reduces.
Secondly, when light source 120 density in the 5th region 125 improves, the brightness of outer peripheral areas 125 can improve a lot.But
It is that this means that the brightness relative reduction of middle section 121.It is thereby possible to reduce the brightness uniformity that display device is overall
Degree.Additionally, due to the luminance-reduction of middle section 121, the efficiency of back light unit the most likely can reduce.
Due to above-mentioned reason, light source 120 density preferably making the 4th region 124 is higher.In other words, the 4th region 124
Light source 120 spacing P4 less than light source 120 spacing P5 in the 5th region 125.
Referring next to Fig. 8, it is to represent that the first area corresponding to light source 120 density is to the 5th region by numerical value
121, the form of each regional luminance of 122,123,124,125.Wherein, the density in each region is the highest, it is meant that between each region
Away from relatively small.Additionally, the brightness shown in the table of Fig. 8 refers to the brightness measured in the A-A ' part of Fig. 7.
" reference " is illustrated that the state that the density of the light source 120 in each region is identical, the light source 120 in the most each region average
The state that spacing is identical.Now, the brightness of first area 121 is the highest, and the brightness in the 5th region 125 is about first area 121
59%.This is because, in first area 121, because of the light source of adjacent area, the light of overlap is more, and therefore light quantity is enriched, so
And in the 5th region 125 because of the light source of adjacent area the light relative deficiency of overlap, cause the brightness in the 5th region 125 to be dropped
Low.
" situation 1 " shows when the density of the light source 120 in the 3rd region 123 be can be regarded as 100% by numerical value, configuration
In first area 121 to the density of the light source 120 in the 5th region 125.The density of the light source 120 of first area 121 is 91%.This
Represent that light source 120 spacing in first area 121 is more than light source 120 spacing in the 3rd region 123.Additionally, the 4th region 124
In the density of light source 120 be 108%.This represents that the light source 120 in the 4th region 124 is smaller than in the 3rd region 123
Light source 120 spacing, is arranged to tightr.It is as shown in the table, and when so changing spacing, the uniformity in the 5th region 125 is about
Improve to 61%.
More to " situation 2 " to " situation 4 ", the average headway P3 of the light source 120 in the 3rd region 123 and first area 121,
The gap between average headway P1, P5 in 5th region 125 is the biggest.When the spacing in each region or light source density from
When " situation 2 " is gradually increased to " situation 4 ", owing to being arranged in the quantity phase of the light source in the 4th region 124 and the 5th region 125
To more (because density is high), the light quantity in this region can increase.Therefore, if the brightness of first area 121 be can be regarded as 100%
Time, the brightness in the 5th region 125 will improve relatively.Thus, from " situation 2 " to " situation 4 ", the uniformity in the 5th region 125
Gradually step up.
Specifically, with reference to " situation 4 ", the density of the light source 120 in first area 121 is the 80% of the 3rd region 123.
Further, the density of the light source 120 in the 4th region 124 is the 124% of the 3rd region 123.If the spacing of being scaled, the most such as
Under.Assume that spacing P1 between the light source 120 in first area 121 is 1.Now between the light source 120 in the 3rd region 123
Spacing P3 is 0.8.Further, spacing P4 having between the light source 120 in the 4th region 124 of minimum spacing is about 0.64.
Further, spacing P5 between the light source 120 in the 5th region 125 is about 0.7.If arrangement, by the light in first area 121
When spacing P1 between source 120 is set to 1, having spacing P4 in the 4th region 124 of minimum spacing can be 0.64, outer most edge
The situation that spacing P5 is 0.7 in region (the 5th region 125) is to improve the preferred version of overall brightness.
Fig. 9 is the chart of the spacing of the light source non-linearly illustrating each region shown in Fig. 7.
As it has been described above, from middle section to outer peripheral areas, the spacing that multiple light sources are configured to be separated by changes.Figure
9 is the chart that the spacing non-linearly illustrating light source changes from middle section to outer peripheral areas.
With reference to Fig. 9, from middle section to outer peripheral areas, the spacing between light source tends to diminish, and between at least existing at one
Flex point P2 big away from change.Specifically, from first area to the 4th region, the spacing of light source diminishes.But, go out in the 4th region
Now flex point P2, and the spacing of light source becomes big once again, until the 5th region.On the other hand, in display floater one side
In heart portion (first area) and outer part (the 5th region), this flex point P2 is close to outer part (the 5th region).
Flex point P2 is not arranged in the 5th region as outer part, but is disposed in proximity to the 4th region in the 5th region
Reason described above.Specifically, it is because when the spacing of the light source in the 5th region is little, it is possible to pass through display floater
Side produce light leakage phenomena.Additionally, when the spacing of the light source in the 5th region is little, the brightness of the 5th areas adjacent can basis
Degree that light source is intensive and improve, and if time now the brightness in the 5th region becomes too high, then display floater can be occurred overall
The impact of luminance-reduction.
As reference, there is also another flex point P1 in first area, but another flex point P1 this both can be according to aobvious
The design of showing device and exist, it is also possible to do not exist.
If arrangement, from the middle section (first area) of display floater to outer peripheral areas (the 5th region), between light source
The spacing being separated by can non-linearly diminish, but there will be, in the 4th region, flex point P1 that spacing becomes big once again.
Figure 10 a and Figure 10 b is the zoning for illustrating on display floater and is arranged in the interior zone of institute's zoning
The concept map of high reflector plate and illustrate the concept map of Luminance Distribution of display floater correspondingly.
With reference to Figure 10 a and Figure 10 b, display device includes that luminous reflectance is higher than the high reflector plate of the luminous reflectance of reflector plate
160。
High reflector plate 160 is arranged on inner space, is directed away from the direction reflection of light source for using the light from light source,
Thus improve the brightness of display floater.Specifically, high reflector plate is configured in the region that the brightness of display floater is likely to decrease
160, increased the light quantity reflexing on display floater by high reflector plate 160 such that it is able to improve brightness.
Display floater can be divided into nine regions.With reference to Figure 10 a, can be by carrying out three respectively along X-axis and Y-axis
Virtual line X1, X2, Y1, Y2 of decile, is divided into nine regions 1P, 2P, 3P, 4P, 5P, 6P, 7P, 8P, 9P by display floater.This
Time, mean flow rate can be measured on the basis of the difference of the light levels in each region.
In each region of existing display device, the brightness measuring result in 1P region and 3P region is minimum.Concrete and
Speech, is being distributed the 7P region of light source to the higher brightness of 9P area distribution.By being adjacent to 7P region to 9P region
The sensing angle of light source, converges most light in 5P region, and therefore brightness is the highest.Further, farthest from light source and because of the sensing of light source
Angle and the brightness in the minimum 1P region of the light of overlap and 3P region is minimum.
Now, in order to improve 1P region and the brightness in 3P region, when display floater is along a certain axle trisection and along another
Axle trisection and formed nine regions time, high reflector plate 160 is arranged in three adjacent with light source region with display
In two regions that the periphery of panel is adjacent.Specifically, can join further on the reflector plate in 7P region and 9P region
Put the first high reflector plate 161.Thus, improve 7P region and the luminous reflectance in 9P region such that it is able to improve 1P region and
The brightness in 3P region.That is, in the light on the reflector plate being irradiated to 7P region and 9P region, increase reflex to 1P region and
The amount of the light in 3P region, thus improve 1P region and the brightness in 3P region.Now, the light according to 7P region and 9P region is anti-
Penetrate the raising of rate, 7P region and the luminance-reduction in 9P region can be made.But the brightness reduced in 7P region and 9P region
And the gap between the brightness in 1P region and 3P region diminishes, thus there is the uniformity of the Luminance Distribution improving display floater
Effect.
Additionally, when display floater along a certain axle trisection and formed along another axle trisection nine regions time, high anti-
Penetrate the display in two adjacent regions of the periphery with display floater that sheet 160 is arranged in three regions that described light source is farthest
The side of panel.Specifically, with reference to Figure 10 a, in order to improve 1P region and the brightness in 3P region, in 1P region and 3P district
The second high reflector plate 162 is configured on the display device cover plate of the side in territory.By the second high reflector plate 162, make by display
The part that the side of device cover plate produces in the light of light leakage phenomena reflexes to 1P region and 3P region such that it is able to improve 1P
Region and the brightness in 3P region.For the reason of design etc., the high reflector plate of above-mentioned first 161 and can be used simultaneously
Two high reflector plates 162, it is also possible to only use one.
With reference to Figure 10 b, the brightness in 1P region to the 9P region of display floater when it is to illustrate employing the first high reflector plate 161
The concept map of distribution.The brightness in 1P region is 255, and the brightness in 2P region is 300, and the brightness in 3P region is 255,4P region bright
Degree is 265, and the brightness in 5P region is 319, and the brightness in 6P region is 265, and the brightness in 7P region is 255, and the brightness in 8P region is
The brightness in 300,9P regions is 255.
Understanding, in existing display device, 7P region is substantially similar to the brightness in 9P region, on the contrary, uses the first height
During reflector plate 161, according to 7P region and the raising of the luminous reflectance in 9P region, its brightness can be less than 8P region.In addition understand,
The brightness in 1P region and 3P region is same or similar with the brightness in 7P region and 9P region.According to this concept map, display surface
The illuminance distribution degree of plate entirety can about be promoted to 80%.Understand, with the illuminance distribution of existing display floater
Degree substantially 65% is compared, and illuminance distribution degree is promoted to high level.
Above-mentioned numerical value can change according to the width of display device.Simply, when exceeding each district shown in " situation 4 "
During the density contrast in territory, due to above-mentioned reason, brightness or efficiency that back light unit is overall are likely to decrease.Above by reference to accompanying drawing pair
Embodiment of the present utility model has carried out more detailed description, but this utility model is not necessarily limited to these enforcement
Example, but can be without departing from implementing various deformation in the range of technological thought of the present utility model.Therefore, this utility model is public
The embodiment opened is not intended to limit technological thought of the present utility model, but is intended to, technology of the present utility model
The scope of thought is not limited by these embodiments.Protection domain of the present utility model should be explained by claims,
And should be interpreted that, belong to all technological thoughts in the range of being equal to it belong to interest field of the present utility model it
In.
Claims (20)
1. lens for side-light type display device, its light being arranged in light source dissipates on direction, sends out from light source for regulation
The sensing angle of the light dissipated, described light source is configured at the side of display device, it is characterised in that
Described lens include:
First refractive face, opposed with described light source, and protrude towards described light source side；
Face, next door, continues from described first refractive face, and extends towards described light source side；
Reflecting surface, forms the gabarit of described lens, and reflects the light inciding inside；
Refraction reflecting surface, continues from described reflecting surface, for the light inciding inside is reflected and reflected；And
Second plane of refraction, continues from described refraction reflecting surface, and towards the opposition side protrusion of described light source,
Relative to the optical axis of the light dissipated from described light source (A) and be perpendicular to described optical axis the first to the 3rd trunnion axis (B1,
B2, B3), the angle between face, described next door and described first trunnion axis is more than or equal to 75 degree and is less than or equal to 90 degree,
Connect the angle between the central shaft of described light source and the straight line of the end in described first refractive face and described optical axis (A) little
In 30 degree.
The lens of side-light type display device the most according to claim 1, it is characterised in that
Angle between described first refractive face and described second trunnion axis (B2) is more than 0 degree and is less than 20 degree,
Angle between tangent line and described 3rd trunnion axis (B3) of the end of described second plane of refraction is more than 30 degree and is less than
70 degree.
The lens of side-light type display device the most according to claim 1, it is characterised in that
Angle between described refraction reflecting surface and described 3rd trunnion axis (B3) is more than 0 degree and less than 25 degree.
The lens of side-light type display device the most according to claim 1, it is characterised in that
Described reflecting surface is to dissipating from described light source and angle between light source and described optical axis (A) light more than or equal to 30 degree enters
Row reflection.
The lens of side-light type display device the most according to any one of claim 1 to 4, it is characterised in that
Described first refractive face, face, next door, reflecting surface, refraction reflecting surface and the second plane of refraction are respectively structured as sphere or non-
Sphere.
6. a display device, it is characterised in that including:
Display floater；
Optical sheet set, is arranged in the back side of described display floater；
Reflector plate, separates configuration with the back side of described optical sheet set, and together forms inner space with described optical sheet set, and
Make light scattering, so that light is irradiated in described optical sheet set；
Light source, is arranged in the sidepiece of described display floater, irradiates light to the middle body of described display floater；
The lens of side-light type display device as claimed in claim 1, are arranged in above described light source；And
Bottom, together surrounds the described inner space formed with described optical sheet set.
Display device the most according to claim 6, it is characterised in that
Described optical sheet set includes the diffusion sheet with the surface roughness of 0 to 2 μm.
Display device the most according to claim 6, it is characterised in that
Described reflector plate includes microballon,
Described reflector plate has the surface roughness of 0 to 10 μm.
Display device the most according to claim 6, it is characterised in that
The glossiness of described reflector plate is 20 to 30.
Display device the most according to claim 6, it is characterised in that
Described bottom is made up of horizontal part and rake.
11. display devices according to claim 10, it is characterised in that
Described horizontal part has L-value based on relational expression 1,
Angle between described rake and described horizontal part is θ based on relational expression 2,
[relational expression 1]
[relational expression 2]
Wherein, D is the thickness of display device, and T is the display device entire length dissipating on direction at light source, and it is logical for pointing to angle
Cross the sensing angle of the light source of lens.
12. display devices according to claim 11, it is characterised in that
The length of described horizontal part is, according to the 80% to 120% of the L-value that described relational expression 1 calculates.
13. display devices according to claim 6, it is characterised in that
Multiple described light sources are configured to string spaced apart relation to each other at the one side of described display floater,
The light source that is arranged in middle section and the outer peripheral areas distance spaced apart with adjacent light source, i.e. spacing differ, its
In, described middle section configures on the basis of the central part of the one side of described display floater light source, in described outer peripheral areas
Light source is configured on the basis of the outer part of the one side of described display floater.
14. display devices according to claim 13, it is characterised in that
The spacing of the light source in described outer peripheral areas is the 70% to 99% of the spacing of the light source in described middle section.
15. display devices according to claim 13, it is characterised in that
From described middle section to described outer peripheral areas, the plurality of light source is divided into the one side from described display floater
The region of central part to more than four of outer part,
In the plurality of region, the average headway of the light source in described middle section is maximum, adjacent with described outer peripheral areas
The average headway of the light source in region is minimum.
16. display devices according to claim 13, it is characterised in that
From described middle section to described outer peripheral areas, the spacing between the plurality of light source changes,
From described middle section to described outer peripheral areas, spacing tends to diminish, and there is the flex point that at least one place's spacing becomes big.
17. display devices according to claim 16, it is characterised in that
In the one side central part and outer part of described display floater, described flex point is configured near described outer part.
18. display devices according to claim 6, it is characterised in that
Including high reflector plate, described high reflector plate is arranged in described inner space, and its luminous reflectance is higher than described reflector plate
Luminous reflectance, for by the luminous reflectance from described light source to away from the position of described light source, to improve described display floater
Brightness.
19. display devices according to claim 18, it is characterised in that
When described display floater along a certain axle trisection and is formed nine regions along another axle trisection, described high reflection
In two regions that the periphery with described display floater that sheet is arranged in three adjacent with described light source region is adjacent.
20. display devices according to claim 18, it is characterised in that
When by described display floater along a certain axle trisection and along when forming nine regions after another axle trisection, described height is anti-
Penetrate the institute in two adjacent regions of the periphery with described display floater that sheet is arranged in three regions that described light source is farthest
State the side of display floater.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020160019692A KR101840924B1 (en) | 2016-02-19 | 2016-02-19 | Lens for edge light type display device and display device having the same |
| KR10-2016-0019692 | 2016-02-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205809486U true CN205809486U (en) | 2016-12-14 |
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ID=58144420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620401452.5U Active CN205809486U (en) | 2016-02-19 | 2016-05-05 | The lens of side-light type display device and comprise the display device of these lens |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR101840924B1 (en) |
| CN (1) | CN205809486U (en) |
| TW (1) | TW201730643A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108147718A (en) * | 2017-12-26 | 2018-06-12 | 正升环境科技股份有限公司 | A kind of high diffusing reflection light transmission acoustic board and preparation method thereof |
| JP2020030327A (en) * | 2018-08-23 | 2020-02-27 | 船井電機株式会社 | Display |
| CN110888209A (en) * | 2019-12-12 | 2020-03-17 | 中国科学院长春光学精密机械与物理研究所 | Total reflection LED optical fiber coupling light distribution element and design method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102053008B1 (en) * | 2018-11-12 | 2019-12-06 | 주식회사 에이치엘옵틱스 | Lens for wide diffusion light |
| KR20210000478A (en) * | 2019-06-25 | 2021-01-05 | 서울반도체 주식회사 | Light source lens and light source module comprising thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008300194A (en) * | 2007-05-31 | 2008-12-11 | Harison Toshiba Lighting Corp | Hollow type surface lighting device |
-
2016
- 2016-02-19 KR KR1020160019692A patent/KR101840924B1/en active IP Right Grant
- 2016-05-05 TW TW105113917A patent/TW201730643A/en unknown
- 2016-05-05 CN CN201620401452.5U patent/CN205809486U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108147718A (en) * | 2017-12-26 | 2018-06-12 | 正升环境科技股份有限公司 | A kind of high diffusing reflection light transmission acoustic board and preparation method thereof |
| JP2020030327A (en) * | 2018-08-23 | 2020-02-27 | 船井電機株式会社 | Display |
| JP7147366B2 (en) | 2018-08-23 | 2022-10-05 | 船井電機株式会社 | Display device |
| CN110888209A (en) * | 2019-12-12 | 2020-03-17 | 中国科学院长春光学精密机械与物理研究所 | Total reflection LED optical fiber coupling light distribution element and design method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101840924B1 (en) | 2018-03-22 |
| TW201730643A (en) | 2017-09-01 |
| KR20170098355A (en) | 2017-08-30 |
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