CN108562969A - Specular removal square light fitting - Google Patents
Specular removal square light fitting Download PDFInfo
- Publication number
- CN108562969A CN108562969A CN201810463214.0A CN201810463214A CN108562969A CN 108562969 A CN108562969 A CN 108562969A CN 201810463214 A CN201810463214 A CN 201810463214A CN 108562969 A CN108562969 A CN 108562969A
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- light
- guiding surface
- export
- face
- light source
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- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 5
- 230000003247 decreasing effect Effects 0.000 claims description 4
- 238000000748 compression moulding Methods 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000009751 slip forming Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0031—Reflecting element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0065—Manufacturing aspects; Material aspects
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Planar Illumination Modules (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The present invention provides a kind of specular removal square light fittings, including outline border, it installs to the rectangular light guide plate on outline border, the side of rectangular light guide plate is equipped with light source, the front of outline border is equipped with diffuser plate, the back side is equipped with reflectance coating, rectangular light guide plate includes transparent plate ontology, plate-like body is included in the first light guiding surface and the second light guiding surface in vertical two side direction, multiple strip echo areas radially arranged successively are provided on second light guiding surface, strip echo area includes the export face for forming angle between light source incidence surface and the first light guiding surface respectively, the conducting surface to connect with export face.After the reflection that light beam passes through conducting surface, reflection is conducted between conducting surface and the first light guiding surface, reflection path shortens, transmission path of the light beam inside light guide plate shortens, reduce loss of the light in light guide plate internal transmission, the utilization rate of light is improved, is finally exported in face of light by exporting, and pass through the export ratio of multiple export face co- controlling light.
Description
Technical field
The present invention relates to light-emitting device field, more particularly to a kind of specular removal square light fitting.
Background technology
Light guide plate is a kind of important smooth transmitting medium converting point light source to planar light source.
It is totally different, (or recessed micro- apart from different, large number of convex netted particle that existing light guide plate is designed to size more
Hole), it will play scattering and refraction action to light, along tablet conduction beam divergence, be refracted to planar surface, to make
One piece optical light guide plate sends out soft, uniform planar light.
The shape style of light guide plate has very much, including whole rectangular face, and the entirety also having is corresponding guide-lighting in disc
The shape of plate is different, and corresponding structural principle also can be variant, and notification number is that CN204227325U discloses a kind of New LED height
Light efficiency square light fitting comprising a transparent or translucent plate-like body, a side end face of the plate-like body at least provided with
One LED light group, the plate-like body surface or forms concave-convex V type slot in stacking on the optical sheet in plate-like body, described recessed
Convex V-groove is that round line emits light source around central point, reduces bright loss.
The light guide plate is upper and lower parallel plate-like body, and LED light group is set to the edge of plate-like body.As shown in Figure 1, working as side
After the light beam of the LED light group on side is injected, the area that the directional light of light beam can intersect with the concave-convex V type slot in plate-like body is small,
The export efficiency of light source is extremely low, and under the specular removal square light fitting especially under small size, the disadvantage is particularly evident.
Invention content
The object of the present invention is to provide a kind of specular removal square light fitting, with light-output efficiency higher, material cost compared with
Low advantage.
The present invention above-mentioned technical purpose technical scheme is that：
A kind of specular removal square light fitting, including outline border, installation, to the rectangular light guide plate on outline border, the side of rectangular light guide plate is equipped with
The front of light source, outline border is equipped with diffuser plate, and the back side is equipped with reflectance coating, and the rectangular light guide plate includes transparent plate ontology, described
Plate-like body is included in the first light guiding surface and the second light guiding surface in vertical two side direction, and transparent plate ontology at least has one
The symmetrical light source incidence surface of group, light source are arranged in the outside of light source incidence surface；
The strip echo area that multiple edges are arranged successively towards light source incidence surface direction is provided on second light guiding surface, strip is anti-
The linear direction for penetrating area is parallel with source incidence surface, the strip echo area include respectively with light source incidence surface and the first light guiding surface
Between form the export face of angle, which is inclined to set with respect to the first light guiding surface, and the light beam of light source enters by light source
Smooth surface is injected to be exported through exporting face refraction or reflection, the export ratio for the light that multiple export face co- controlling light source incidence surfaces are injected
Rate；
Strip echo area further includes the conducting surface to connect with export face, conducting surface nearly second light guiding surface side, and described in each
The center line direction of height towards two light source incidence surfaces between conducting surface and the first light guiding surface is gradually successively decreased, and the conducting surface is any
The angle that the angle that the tangent line and the first light guiding surface of point are formed is less than the tangent line of export face any point and the first light guiding surface is formed, light
The light beam in source conducts reflection, wherein through conducting surface along light source incidence surface to center line direction between conducting surface and the first light guiding surface
The light beam of reflection and the first light guiding surface form α angles, which gradually increases with multiple reflections of the light on conducting surface.
Further setting, the strip echo area being arranged on the second light guiding surface are the strip-shaped surface of LINEAR CONTINUOUS or are spaced continuous
Strip-shaped surface.
Further setting is arranged between several strip echo areas on the second light guiding surface at arranged in a crossed manner or parallel set
It sets.
The export face quantity of further setting, the strip echo area is two, the inclination in two adjacent export faces
Direction is on the contrary and connection is realized in the end of two export face teletransmission guide face sides by being provided with joint face.
Further setting, the length towards light source incidence surface direction of the conducting surface is along light source incidence surface to center line direction
Gradually successively decrease.
Further setting, the distance between joint face and export face peak of each strip echo area are along light source
Incidence surface is gradually incremented by center line direction.
Further setting, arc transition is set as between the joint face and export face.
The angle that further setting, the tangent line of the conducting surface any point and the first light guiding surface are formed is 0~15 °, described
The angle that the tangent line of export face any point and the first light guiding surface are formed is 20~60 °.
Further setting, the conducting surface be continuously formed on the second light guiding surface cambered surface on same path or curved surface or
Cascaded surface.
Further setting, the plate-like body are roll-forming either compression molding or injection molding.
The invention has the advantages that：
1, point light source is arranged in the outer ring position of specular removal square light fitting, light source enters from outer ring inside plate-like body, light
It is reflected between the first light guiding surface and the second light guiding surface, it is anti-that multiple strips radially arranged successively is provided on the second light guiding surface
Area is penetrated, formation light is close between the material and air of light guide plate and light is dredged, and can be brought respectively in the case where incident angle meets certain condition
Two kinds of situations of refraction and total reflection, when the incidence angle of incident ray meets the case where being totally reflected, light reflects again from export face
To the first light guiding surface, continue to transmit light from periphery toward center line from the first light guiding surface, it is on the contrary then reflect the second light guiding surface；
Under same strip reflection plot structure, light guide plate is thicker, and export efficiency is lower, conversely, more Bao Yuegao.So by the plate
The thickness that ontology is disposed proximate at light source incidence surface is big, and midline thinner thickness.Thickness is more than lamp bead size at incidence surface,
Light leakage is reduced, and in the identical use that can reduce material of light guide plate, is even more significantly when quantity is big
Reduce cost.
2, for the soft degree of the light of further gentle entire light guide plate, the arrangement in the export face at close to sources is close
Degree is negligent of at distance light source, and the distance between the joint face of each strip echo area and export face peak are along center line to outer circle
The direction in face successively increases.By the light beam at distance light end more efficient utilization and export, light export is more efficient.
Description of the drawings
Fig. 1 is the schematic diagram of the specular removal square light fitting of uniform thickness in the prior art；
Fig. 2 is the amount of light schematic diagram of the specular removal square light fitting of uniform thickness in the prior art；
Fig. 3 is the schematic diagram of the specular removal square light fitting of the application；
Fig. 4 is the schematic diagram of the specular removal square light fitting of the application；
Fig. 5 is the vertical view of the specular removal square light fitting of the application；
Fig. 6 is the detail view in the annular reflection area of the specular removal square light fitting of the application；
Fig. 7 is the amount of light schematic diagram of the specular removal square light fitting of the application.
In figure, 1, plate-like body；2, the first light guiding surface；3, the second light guiding surface；4, light source incidence surface；5, annular reflection area；
6, face is exported；7, joint face；8, conducting surface；9, specular removal square light fitting；10, diffuser plate；11, reflectance coating；12, outline border；13, light
Source.
Specific implementation mode
Below in conjunction with attached drawing, invention is further described in detail.
Embodiment 1：
A kind of specular removal square light fitting, as shown in figure 3, including outline border 12, installation to the specular removal square light fitting 9 on outline border 12,
The side of specular removal square light fitting 9 is equipped with light source 12, and the front of outline border 12 is equipped with diffuser plate 10, and the back side is equipped with reflectance coating 11.
As shown in figure 4, specular removal square light fitting 9 include transparent plate-like body 1, plate-like body 1 be roll-forming or
Compression molding or injection molding.Transparent plate ontology at least has one group of symmetrical light source incidence surface 4, and light source is arranged in light source
The outside of incidence surface, to provide light source inside plate-like body 1.
As shown in Figure 4 and Figure 5, it is guide-lighting to be included in the first light guiding surface 2 and second in vertical two side direction for plate-like body 1
Face 3 is equipped with multiple strip echo areas 5 arranged successively towards 4 direction of light source incidence surface on the second light guiding surface 3.
Because strip echo area 5 is small structure, in order to show the structure, displaying strip is used as by enlarged drawing Fig. 5
The size of the schematic diagram of echo area 5, all parts in Fig. 5 is only for reference.
With reference to figure 6, each strip echo area 5 includes two export faces being obliquely installed 6, the inclination in two export faces 6
Direction can so allow two export on the contrary, in the ideal situation, two export faces 6 can intersect at a point to form V-structure
The effect in face 6 is maximum.But because the V-structure that export face 6 is intersected carries viscoelasticity in plastic shaping, therefore, each
Joint face 7 can be also provided between two export faces 6 of shape echo area 5, joint face 7 and two constitutes ladder between exporting face 6
Shape shape, it can also be plane that above-mentioned joint face 7, which can be cambered surface,.
Strip echo area 5 further includes the conducting surface 8 to connect with export face 6, conducting surface 8 close to 3 side of the second light guiding surface, and
Height between each conducting surface 8 and the first light guiding surface 2 is gradually successively decreased along light source incidence surface 4 to center line direction, and conducting surface 8 is appointed
The folder that the angle that the tangent line of any and the first light guiding surface 2 are formed is less than the tangent line of 6 any point of export face and the first light guiding surface 2 is formed
Angle.Specifically, the angle that the tangent line of 8 any point of conducting surface and the first light guiding surface 2 are formed is 0~15 °, exports 6 any point of face
Tangent line and the first light guiding surface 2 formed angle be 20~60 °.Above-mentioned conducting surface 8 is continuously formed on the second light guiding surface 3
Cambered surface or curved surface on same path or cascaded surface.
Based on above-mentioned setting, the light extraction light quantity of specular removal square light fitting is compared and analyzed, as shown in Fig. 2, Fig. 2 is figure
The schematic diagram of light extraction light quantity in 1 after the arrangement concave-convex V type slot of the specular removal square light fitting of the prior art, specular removal square light fitting
Side entering light, by taking the sectional view in Fig. 2 as an example, entering light on the left of light source, middle part is the midline position of specular removal square light fitting
Amount of light, right side are distalmost end of the light source into optical position.Light after the lateral entering light of light guide plate, theoretically per side light source light extraction
To at midline position, the light source being arranged on light guide plate circumference just reaches the whole bright of sufficient specular removal square light fitting.Due to
The lateral penetrability of light, light source still have major part to be perforated through midline position after having crossed center line, the reflection path of the light of the part
Longer, even, the light beam of some is directly projected from the other end, cannot efficiently use export, the export rate of light is very low.
As shown in fig. 7, the composition of conducting surface 6 makes the second light guiding surface 3 at recess, and specifically, specular removal square front lamp
The both sides of tool are thicker, and midline position is relatively thin.In conjunction with Fig. 3, due to light guide plate thickness from dipped beam end towards distance light end decrescence, light beam
After reflection by conducting surface 8, reflection is conducted between conducting surface 8 and the first light guiding surface 2, reflection path shortens, and light beam is being led
Transmission path inside tabula rasa shortens, and reduces loss of the light in light guide plate internal transmission, improves the utilization rate of light.And because
The reflected beams of conducting surface 8 and the α angles of the first light guiding surface 2 become larger, the more conducively export of light, improve the export ratio of light
Example and improve export efficiency.Finally, recess, the thinner thickness of midline position, the export efficiency of light are constituted according to conducting surface 8
It is inversely proportional with the thickness of light guide plate, the thickness of midline position is thinner, and light-output efficiency is higher, by the equal light guide plate 50% of thickness
Export efficiency be at least promoted to 80% or more.
In addition, the light beam of light source is injected by light source incidence surface 4 through exporting the refraction export of face 6 or reflection, specifically, ginseng
Fig. 5 is examined, light beam exports after export face 6 reflects, but still has a small amount of light beam to be reflected, and continues to reflect by the first light guiding surface 2, lead
6 pairs of light of appearing export, and pass through the export ratio of 6 co- controlling light of multiple export faces.
If similar trapezoidal structure is made in export face 6 with joint face 7, between joint face 7 and the first light guiding surface 2
Then be parallel relation, under this kind of state, when light is reflexed to from the first light guiding surface 2 on joint face 7, due to joint face 7 with
Angle is not present between first light guiding surface 2, joint face 7 can not play derivative ac-tion to light beam, so in order to mention light
Export efficiency also forms arc transition so doing joint face 7 in arc-shaped between joint face 7 and two export faces 6, will be micro-
It under the radian of small joint face 7, plays and not planning for light beam is distributed, because increasing the multiple reflections of light beam, more conducively
Light beam is conducted to the midline position of specular removal square light fitting, moreover, playing even light action.Again because joint face 7 exports 6 ruler of face
It is very little be micron order, as joint face 7 be not circular arc excessively but intersection connection export face 6, intersection wedge angle connection dot shape because
The viscoplasticity of material at high temperature is difficult molding.
Since the light intensity that close to sources goes out is bigger, and it is then weaker at distance light source, and the radical length of conducting surface 8 is with remote
It is smaller and smaller from point light source.It rephrases the statement, i.e., the arrangement of export face 6 at point light source is negligent of far from point light source.In this way,
The ratio light guide plate identical with thickness in above-mentioned export face 6 can be utilized to want high more.Furthermore because export face 6 is arranged in density
Cloth basis, by the light beam at distance light end more efficient utilization and export.
Further, for far from the export face 6 at point light source, the joint face 7 of each of which strip echo area 5 with
The distance between 6 peak of export face is gradually incremented by along light source incidence surface 4 to center line direction.Such design can ensure distance light
Joint face 7 and the distance between the first light guiding surface 2 at source is small, further improves export efficiency.What is more important, light
The number of reflection and refraction increases, and the utilization rate in export face 6 increases, and improves derived proportions.
Under the structure of the light guide plate of the application, the use of material is not only only reduced, there is great economic benefit, and
And the export of light is more conducive to than traditional light guide plate.
In addition, can also arrange the strip echo area 5 of identical rule on the first light guiding surface 2.
The above embodiments are only explanation of the invention, are not limitation of the present invention, people in the art
Member can as needed make the present embodiment the modification of not creative contribution after reading this specification, but as long as at this
It is all protected by Patent Law in the right of invention.
Claims (10)
1. a kind of specular removal square light fitting, including outline border (12), installation are to the rectangular light guide plate (9) on outline border (12), it is rectangular to lead
The side of tabula rasa (9) is equipped with light source (12), and the front of outline border (12) is equipped with diffuser plate (10), and the back side is equipped with reflectance coating (11), institute
It includes transparent plate ontology (1) to state rectangular light guide plate (9), characterized in that the plate-like body (1) is included in vertical two side direction
On the first light guiding surface (2) and the second light guiding surface (3), transparent plate ontology at least have one group of symmetrical light source incidence surface
(4), light source is arranged in the outside of light source incidence surface；
The strip echo area that multiple edges are arranged successively towards light source incidence surface (4) direction is provided on second light guiding surface (3)
(5), the linear direction of strip echo area (5) is parallel with source incidence surface (4), the strip echo area (5) include respectively with light
The export face (6) of angle is formed between source incidence surface (4) and the first light guiding surface (2), the export face (6) is with respect to the first light guiding surface
(2) it is inclined to set, and the light beam of light source is injected by light source incidence surface (4) and exported through exporting face (6) refraction or reflection, it is multiple
The export ratio for the light that export face (6) co- controlling light source incidence surface (4) is injected；
Strip echo area (5) further includes the conducting surface (8) to connect with export face (6), nearly second light guiding surface of conducting surface (8) (3) one
Side, and the center line side of the height two light source incidence surfaces (4) of direction between each described conducting surface (8) and the first light guiding surface (2)
To gradually successively decreasing, the angle that the tangent line and the first light guiding surface (2) of conducting surface (8) any point are formed is appointed less than export face (6)
The angle that the tangent line of any and the first light guiding surface (2) are formed, the light beam of light source is along light source incidence surface (4) to center line direction, Yu Chuan
Reflection is conducted between guide face (8) and the first light guiding surface (2), wherein light beam and the first light guiding surface (2) through conducting surface (8) reflection
α angles are formed, which gradually increases with multiple reflections of the light on conducting surface (8).
2. specular removal square light fitting according to claim 1, it is characterised in that：The item being arranged on the second light guiding surface (3)
Shape echo area (5) is the continuous strip-shaped surface of strip-shaped surface or interval of LINEAR CONTINUOUS.
3. specular removal square light fitting according to claim 2, it is characterised in that：Be arranged in the second light guiding surface (3) if on
At arranged in a crossed manner or be arranged in parallel between dry strip echo area (5).
4. specular removal square light fitting according to claim 1 or 2 or 3, it is characterised in that：The strip echo area (5)
Export face (6) quantity is two, and the inclined direction of two adjacent export faces (6) is opposite and two export faces (6) are remote
Connection is realized by being provided with joint face (7) in the end of conducting surface (8) side.
5. specular removal square light fitting according to claim 4, it is characterised in that：Conducting surface (8) enter towards light source
The length in smooth surface (4) direction is gradually successively decreased along light source incidence surface (4) to center line direction.
6. specular removal square light fitting according to claim 5, it is characterised in that：Each strip echo area (5)
The distance between joint face (7) and export face (6) peak are gradually incremented by along light source incidence surface (4) to center line direction.
7. specular removal square light fitting according to claim 6, it is characterised in that：The joint face (7) with export face (6) it
Between be set as arc transition.
8. specular removal square light fitting according to claim 1 or 2 or 3, it is characterised in that：Conducting surface (8) any point
Tangent line and the first light guiding surface (2) formed angle be 0~15 °, the tangent line and the first light guiding surface of export face (6) any point
(2) angle formed is 20~60 °.
9. specular removal square light fitting according to claim 1 or 2 or 3, it is characterised in that：The conducting surface (8) is second
The cambered surface or curved surface or cascaded surface being continuously formed on light guiding surface (3) on same path.
10. specular removal square light fitting according to claim 1, it is characterised in that：The plate-like body (1) is roll-forming
Either compression molding or injection molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810463214.0A CN108562969B (en) | 2018-05-15 | 2018-05-15 | Square lamp with high luminous efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810463214.0A CN108562969B (en) | 2018-05-15 | 2018-05-15 | Square lamp with high luminous efficiency |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108562969A true CN108562969A (en) | 2018-09-21 |
| CN108562969B CN108562969B (en) | 2024-04-05 |
Family
ID=63538875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810463214.0A Active CN108562969B (en) | 2018-05-15 | 2018-05-15 | Square lamp with high luminous efficiency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108562969B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115542611A (en) * | 2022-11-25 | 2022-12-30 | 惠科股份有限公司 | Backlight module and display device |
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| TW200422670A (en) * | 2003-04-25 | 2004-11-01 | Hon Hai Prec Ind Co Ltd | Light guide plate and surface light source device |
| CN101149522A (en) * | 2006-09-18 | 2008-03-26 | 胜华科技股份有限公司 | Backlight module |
| CN201628179U (en) * | 2010-02-05 | 2010-11-10 | 厦门伟然科技有限公司 | Light guide plate |
| CN201651956U (en) * | 2010-03-26 | 2010-11-24 | 厦门伟然科技有限公司 | Ultrathin LED flat lamp |
| CN103939790A (en) * | 2013-01-22 | 2014-07-23 | 群创光电股份有限公司 | Display device and light-emitting module thereof |
| CN105221967A (en) * | 2015-10-26 | 2016-01-06 | 江苏新广联科技股份有限公司 | A kind of LED panel lamp based on compact disk structure |
| CN206176151U (en) * | 2016-10-11 | 2017-05-17 | 上海乙班电子科技有限公司 | Luminous lamps and lanterns of side with little light -directing structure |
| CN208255459U (en) * | 2018-05-15 | 2018-12-18 | 杭州矽能新材料有限公司 | High photosynthetic efficiency square light fitting |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115542611A (en) * | 2022-11-25 | 2022-12-30 | 惠科股份有限公司 | Backlight module and display device |
| US12099274B2 (en) | 2022-11-25 | 2024-09-24 | HKC Corporation Limited | Backlight module and display device |
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