CN202815257U - Light guide plate with trumpet-shaped structure and backlight module using same - Google Patents
Light guide plate with trumpet-shaped structure and backlight module using same Download PDFInfo
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- CN202815257U CN202815257U CN 201220339108 CN201220339108U CN202815257U CN 202815257 U CN202815257 U CN 202815257U CN 201220339108 CN201220339108 CN 201220339108 CN 201220339108 U CN201220339108 U CN 201220339108U CN 202815257 U CN202815257 U CN 202815257U
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Abstract
The utility model provides a light guide plate with a trumpet-shaped structure and a backlight module using the same, wherein the light guide plate comprises a body portion and a trumpet-shaped portion, the body portion is provided with mutually parallel upper and lower surfaces, the trumpet-shaped portion is provided with a second upper surface, the trumpet-shaped portion is connected with one side of the body portion, the thickness of the trumpet-shaped portion is increased with the increase of the distance between the body portion and the trumpet-shaped portion, the second upper surface of the trumpet-shaped portion is an inclined surface, and the second upper surface of the trumpet-shaped portion is provided with a plurality of microstructures. The light guide plate enables to a first microstructure to be arranged on the second upper surface, enables light emitted from the second upper surface to reach an atomized effect, and can prevent the light emitted from the second upper surface from concentrating at one position, such that the brightness of the light emitted from the second upper surface is close to the brightness of light emitted from a first upper surface of the body portion, thereby homogenizing a surface light source emitted from the upper surfaces by the light guide plate.
Description
Technical field
The utility model is about a kind of light guide plate and uses its backlight module, espespecially a kind of backlight module that has the light guide plate of horn shape (trumpet-shaped) structure and use it.
Background technology
Make rapid progress along with science and technology, liquid crystal display strides forward towards the target of slimming gradually, so the slimming of its backlight module also is one of important problem.For the thinning backlight module, the kind of backlight module is developed to side-light type from straight-down negative.Known side light type back light module is a side that light emitting diode is arranged at light guide plate, and the light of light emitting diode is injected from the sidewall of light guide plate, and then the upper surface from light guide plate penetrates.Although have at present the thickness backlight module identical with the height of light emitting diode that develops light guide plate, to dwindle the thickness of Integral back optical module, the part light of light emitting diode still can't be injected in the light guide plate, and causes light utilization efficiency to descend.Hence one can see that, and the thickness of light guide plate is the restriction that is subject to the height of light emitting diode, and can't dwindle.For the light that makes light emitting diode can be injected light guide plate, to reach better light utilization efficiency, other has the light guide plate with horn shape structure to be developed.Yet, because the upper surface of the light guide plate of horn shape structure is not to be flat surface, and have a part of inclined surface, therefore can assemble towards the direction of part flat surface from the light that inclined surface penetrates, and then cause the user can watch a part of block bright than other block.For head it off, although utilize covering layer to hide this part block, to avoid watching this defective, limited the viewing area of display device.In view of this, in the situation of the viewing area of avoiding limiting with covering layer display device, the real target of making great efforts for industry of the area source that the light guide plate of homogenising horn shape structure produces.
The utility model content
Fundamental purpose of the present utility model is to provide a kind of backlight module that has the light guide plate of horn shape structure and use it, with the area source that light guide plate was produced of homogenising horn shape structure.
For reaching above-mentioned purpose, the utility model provides a kind of light guide plate with horn shape structure.Light guide plate comprises a main part and one first horn shape section.Main part has each other parallel one first upper surface and one first lower surface, and the first horn shape section has one second upper surface.The first horn shape section is connected in a side of main part, and the thickness of the first horn shape section is along with far away and larger with the distance of main part, the second upper surface that makes the first horn shape section is an inclined surface, and wherein the second upper surface of the first horn shape section has a plurality of the first microstructures.
For reaching above-mentioned purpose, the utility model also provides a kind of backlight module.Backlight module comprises a light guide plate and at least one the first light source.Light guide plate comprises a main part and one first horn shape section.Main part has each other parallel one first upper surface and one first lower surface, and the first horn shape section, has one second upper surface, one second lower surface and one first incidence surface.The first horn shape section is connected in a side of main part, and the thickness of the first horn shape section is along with far away and larger with the distance of main part, the second upper surface that makes the first horn shape section is an inclined surface, and wherein the second upper surface of the first horn shape section has a plurality of the first microstructures.The first surface of light source is to the first incidence surface setting.
The utility model is by arranging the first microstructure on the second upper surface, the light that the second upper surface is penetrated can reach the effect of atomizing, and the light concentrations of avoiding penetrating from the second upper surface is in this.By this, the light luminance that penetrates from the second upper surface can be with approaching from the emitted light luminance of the first upper surface of main part, with the surperficial from it emitted area source of homogenising light guide plate.
Description of drawings
Fig. 1 be one first preferred embodiment of the present utility model on look synoptic diagram.
Fig. 2 is that Fig. 1 is along the diagrammatic cross-section of profile line A-A '.
Fig. 3 is the schematic side view of a part of the backlight module of the utility model the first preferred embodiment.
Fig. 4 be have trumpet type shape section but backlight module with first microstructure along the synoptic diagram that concerns of the position of the direction of the profile line A-A ' of Fig. 1 and brightness.
Fig. 5 is that the backlight module of the utility model the first preferred embodiment is along the synoptic diagram that concerns of the position of the direction of the profile line A-A ' of Fig. 1 and brightness.
Fig. 6 is the schematic side view of the backlight module of the utility model one second preferred embodiment.
Fig. 7 is that the backlight module of the utility model the second preferred embodiment is along the synoptic diagram that concerns of the position of the direction of the profile line A-A ' of Fig. 1 and brightness.
Fig. 8 is the schematic side view of the backlight module of the utility model 1 the 3rd preferred embodiment.
Fig. 9 is that the backlight module of the utility model the 3rd preferred embodiment is along the synoptic diagram that concerns of the position of the direction of the profile line A-A ' of Fig. 1 and brightness.
Figure 10 is the schematic side view of the backlight module of the utility model 1 the 4th preferred embodiment.
Figure 11 is that the backlight module of the utility model the 4th preferred embodiment is along the synoptic diagram that concerns of the position of the direction of the profile line A-A ' of Fig. 1 and brightness.
Figure 12 be the utility model 1 the 5th preferred embodiment backlight module diagrammatic cross-section.
in figure: 100 backlight modules, , , 102 LGPs, , 1022 main parts, , 1022a first upper surface 1022b the first lower surface, , , , 1024 first horn shape sections, , 1024a the second upper surface, , , , , 1024b the second lower surface, , 1024c, , , the first incidence surface, , , 1026 second horn shape sections, , 1026a the 3rd upper surface, , 1026b the 3rd lower surface, , 1026c the second incidence surface, , , , 104 first light sources, , 104a the first exiting surface, , 106 secondary light sources, , 106a, , , the second exiting surface, , 108 first micro-structurals, , 108a the first prismatic structure, , , , 110, , , the second micro-structural, , 110a, , , the second prismatic structure, , , , , 200 backlight modules, , , , 202 LGPs, , 204 first prismatic structures, , 206 second prismatic structures, , , , 300 backlight modules, , 302 LGPs, , 304 first micro-structurals, , 304a the first circular arc column structure, , , , , 306 second micro-structurals, , 306a, , the second circular arc column structure, , 400 backlight modules, , 402 LGPs, , 404 first circular arc column structures, , 406 second circular arc column structures, , 500 backlight modules, , 502 first light sources, , 504 LGPs, , , 506 first micro-structurals, , C1 the first curve, , C2 the second curve, , C3 the 3rd curve, , C4 the 4th curve, , , , C5, the 5th curve.
Embodiment
For above-mentioned feature and advantage of the present utility model can be become apparent, embodiment cited below particularly, and cooperation accompanying drawing be described in detail below, but the utility model are not limited to this.
Please refer to Fig. 1 and Fig. 2, Fig. 1 be one first preferred embodiment of the present utility model on look synoptic diagram, and Fig. 2 is that Fig. 1 is along the diagrammatic cross-section of profile line A-A '.Such as Fig. 1 and shown in Figure 2, backlight module 100 comprises a light guide plate 102, a plurality of the first light source 104 and a plurality of secondary light source 106.Light guide plate 102 comprises a main part 1022, one first horn shape section 1024 and one second horn shape section 1026.Main part 1022 has each other parallel one first upper surface 1022a and one first lower surface 1022b, the first horn shape section 1024 has one second upper surface 1024a, one second lower surface 1024b and one first incidence surface 1024c, and the second horn shape section 1026 has one the 3rd upper surface 1026a, one the 3rd lower surface and one second incidence surface.The first horn shape section 1024 is connected in a side of main part 1022, the first upper surface 1022a is connected with the second upper surface 1024a, and the first lower surface 1022b is connected with the second lower surface 1024b.The first incidence surface 1024c is positioned at the first horn shape section 1024 with respect to the opposite side of main part 1022, and does not contact with main part 1022, and the first light source 104 is to arrange in the face of the first incidence surface 1024c.And the first light source 104 has one first exiting surface 104a, and the first exiting surface 104a is in the face of the first incidence surface 1024c.By this, the light that the first light source 104 produces can be injected in the first horn shape section 1024 via the first incidence surface 1024c, and then enter main part 1022 and the second horn shape section 1026, with in the first upper surface 1022a, the second upper surface 1024a and the 3rd upper surface 1026a outgoing plane light source.
In addition, the second horn shape section 1026 is connected in main part 1022 with respect to the opposite side of the first light source 104, the 3rd upper surface 1026a is connected with the first upper surface 1022a, and the 3rd lower surface 1026b is connected with the first lower surface 1022b.The second incidence surface 1026c is positioned at the second horn shape section 1026 with respect to the opposite side of main part 1022, and does not contact with main part 1022, and secondary light source 104 arranges in the face of the second incidence surface 1026c.And secondary light source 106 has one second exiting surface 106a, and the second exiting surface 106a is in the face of the second incidence surface 1026c.By this, the light that secondary light source 106 produces can be injected in the second horn shape section 1026 via the second incidence surface 1026c, and then enter main part 1022 and the first horn shape section 1024, with in the first upper surface 1022a, the second upper surface 1024a and the 3rd upper surface 1026a outgoing plane light source.And the first horn shape section 1024, the second horn shape section 1026 and main part 1022 are formed in one.The quantity of the first light source 104 of the present utility model and secondary light source 106 is not limited to a plurality of, only is single and also can distinguish.
It should be noted that the thickness of the first horn shape section 1024 along with far away and larger with the distance of main part 1022, the second upper surface 1024a that makes the first horn shape section 1024 is the inclined surface of main part 1022 inclinations on one day.By this, the thickness of the main part 1022 of present embodiment can be less than the height of the first light source 104, and not limited need are greater than the height of the first light source 104, and the height of the first incidence surface 1024c of present embodiment makes the first light source 104 emitted light effectively inject the first horn shape section 1024 greater than the height of the first light source 104.And the thickness of main part 1022 can be lowered according to the actual requirements, even less than the height of the first light source 104, effectively reducing the thickness of backlight module 100, and also can effectively utilize the light of the first light source 104, and keep certain light utilization efficiency.In like manner, the thickness of the second horn shape section 1026 is also along with far away and larger with the distance of main part 1022, and the 3rd upper surface 1026a that makes the second horn shape section 1026 is the inclined surface of main part 1022 inclinations on one day.By this, the thickness of the main part 1022 of present embodiment can be less than the height of secondary light source 106, and not limited need are greater than the height of secondary light source 106, and the height of the second incidence surface 1026c of present embodiment makes secondary light source 106 emitted light effectively inject the second horn shape section 1026 greater than the height of secondary light source 106.And the thickness of main part 1022 can be lowered according to the actual requirements, even less than the height of secondary light source 106, effectively reducing the thickness of backlight module 100, and also can effectively utilize the light of secondary light source 106, and keep certain light utilization efficiency.
Please refer to Fig. 3, Fig. 3 is the schematic side view of a part of the backlight module of the utility model the first preferred embodiment.As shown in Figure 3, the second upper surface 1024a of the first horn shape section 1024 has a plurality of the first microstructures 108.In the present embodiment, the first microstructure 108 comprises a plurality of each other parallel the first prismatic structure 108a, and the first prismatic structure 108a is the side that vertical the second upper surface 1024a is connected with main part 1022.In other words, the short transverse of each first prismatic structure 108a is the side directions setting that is connected with main part 1022 along vertical the second upper surface 1024a, and the first prismatic structure 108a is that the direction of the side that is connected with main part 1022 along parallel the second upper surface 1024a is sequentially arranged.The 3rd upper surface 1026a of the second horn shape section 1026 has a plurality of the second microstructures 110.In the present embodiment, the second microstructure 110 comprises a plurality of each other parallel the second prismatic structure 110a, and the also side that is connected with main part 1022 of vertical the 3rd upper surface 1026a of the second prismatic structure 110a.In other words, the short transverse of each second prismatic structure 110a is the side directions setting that is connected with main part 1022 along vertical the 3rd upper surface 1026a, and the second prismatic structure 110a is that the direction of the side that is connected with main part 1022 along parallel the 3rd upper surface 1026a is sequentially arranged.
It should be noted that, present embodiment is by the first microstructure 108 being set on the second upper surface 1024a and in the 3rd upper surface 1026a the second microstructure 110 being set, the light that the second upper surface 1024a and the 3rd upper surface 1026a are penetrated can reach the effect of atomizing, and avoids excessively concentrating towards this two position from the light of the second upper surface 1024a and the 3rd upper surface 1026a ejaculation.By this, the light luminance that penetrates from the second upper surface 1024a and the 3rd upper surface 1026a can with approach from the emitted light luminance of the first upper surface 1022a of main part 1022, with homogenising light guide plate 102 from the first upper surface 1022a, the second upper surface 1024a and the emitted area source of the 3rd upper surface 1026a.
Below will further specify the effect of present embodiment.Please refer to Fig. 4 and Fig. 5, and in the lump with reference to figure 2 and Fig. 3.Fig. 4 has trumpet type shape section but does not have the backlight module of the first microstructure along the position and the relation of brightness and corresponding GTG brightness synoptic diagram of the direction of the profile line A-A ' of Fig. 1, and Fig. 5 is that the backlight module of the utility model the first preferred embodiment is along the position and the relation of brightness and corresponding GTG brightness synoptic diagram of the direction of the profile line A-A ' of Fig. 1.Extremely shown in Figure 5 such as Fig. 2, the first curve C 1 be representative across the position of the first horn shape section, main part and the second horn shape section of backlight module and the relation curve of brightness, and the backlight module of the first curve C 1 representative does not have the first microstructure and the second microstructure.The second curve C 2 is that representative is across the position of the first horn shape section 1024, main part 1022 and the second horn shape section 1026 of the backlight module 100 of present embodiment and the relation curve of brightness.Relatively the first curve C 1 and the second curve C 2 as can be known, the first curve C 1 is that the gap of 0 millimeter corresponding brightness is that-80 millimeters and 80 millimeters corresponding brightness and position are the gap of 0 millimeter corresponding brightness in the position greater than the second curve C 2 in the position for-80 millimeters and 80 millimeters corresponding brightness and position.And, corresponding GTG brightness on the first curve C 1 and the corresponding GTG brightness of the second curve C 2 are as can be known, do not have the area source that the backlight module of the first microstructure and the second microstructure produces and have higher brightness in the position of the first horn shape section and the second horn shape section, and the area source that the backlight module 100 of present embodiment produces then has lower brightness in the position of the first horn shape section 1024 and the second horn shape section 1026.Hence one can see that, the light guide plate 102 of present embodiment can reduce from the emitted light luminance of the second upper surface 1024a and the 3rd upper surface 1026a and from the gap of the emitted light luminance of the first upper surface 1022a by the first microstructure 108 and the second microstructure 110 are set in the second upper surface 1024a that tilts towards main part 1022 and the 3rd upper surface 1026a, and then homogenising light guide plate 102 is from the first upper surface 1022a, the second upper surface 1024a and the emitted area source of the 3rd upper surface 1026a.
Backlight module of the present utility model is not limited with above-described embodiment.Hereinafter will continue to disclose other embodiment of the present utility model or change shape, right for the purpose of simplifying the description and highlight each embodiment or change shape between difference, hereinafter use same numeral mark same components, and no longer counterweight again part give unnecessary details.
Please refer to Fig. 6 and Fig. 7, and in the lump with reference to figure 4.Fig. 6 is the schematic side view of the backlight module of the utility model one second preferred embodiment, and Fig. 7 is that the backlight module of the utility model the second preferred embodiment is along the position and the relation of brightness and corresponding GTG brightness synoptic diagram of the direction of the profile line A-A ' of Fig. 1.As shown in Figure 6, compared to the first embodiment, the side that the first prismatic structure 204 parallel second upper surface 1024a of the light guide plate 202 of the backlight module 200 of present embodiment are connected with main part 1022, and the side that is connected with main part 1022 of the second prismatic structure 206 parallel the 3rd upper surface 1026a.Such as Fig. 4 and shown in Figure 7, the 3rd curve C 3 is that representative is across the position of the first horn shape section 1024, main part 1022 and the second horn shape section 1026 of the backlight module 200 of present embodiment and the relation curve of brightness.Relatively the first curve C 1 and the 3rd curve C 3 as can be known, the first curve C 1 is that the gap of 0 millimeter corresponding brightness is that-80 millimeters and 80 millimeters corresponding brightness and position are the gap of 0 millimeter corresponding brightness in the position greater than the 3rd curve C 3 in the position for-80 millimeters and 80 millimeters corresponding brightness and position.And, corresponding GTG brightness on the first curve C 1 and the corresponding GTG brightness of the 3rd curve C 3 are as can be known, do not have the area source that the backlight module of the first microstructure and the second microstructure produces and have higher brightness in the position of the first horn shape section and the second horn shape section, and the area source that the backlight module 200 of present embodiment produces then has lower brightness in the position of the first horn shape section 1024 and the second horn shape section 1026.Hence one can see that, the first prismatic structure 204 of the light guide plate 202 of present embodiment and the second prismatic structure 206 also can reduce from the emitted light luminance of the second upper surface 1024a and the 3rd upper surface 1026a and gap from the emitted light luminance of the first upper surface 1022a, and homogenising light guide plate 202 is from the first upper surface 1022a, the second upper surface 1024a and the emitted area source of the 3rd upper surface 1026a.
Please refer to Fig. 8 and Fig. 9, and in the lump with reference to figure 4.Fig. 8 be the utility model 1 the 3rd preferred embodiment backlight module schematic side view, Fig. 9 is that the backlight module of the utility model the 3rd preferred embodiment is along the position and the relation of brightness and corresponding GTG brightness synoptic diagram of the direction of the profile line A-A ' of Fig. 1.As shown in Figure 8, compared to the first embodiment, the first microstructure 304 of the light guide plate 302 of the backlight module 300 of present embodiment comprises a plurality of each other parallel the first circular arc column structure 304a, and the second microstructure 306 comprises a plurality of each other parallel the second circular arc column structure 306a.The side that vertical the second upper surface 1024a of the first circular arc column structure 304a is connected with main part 1022, and the side that is connected with main part 1022 of vertical the 3rd upper surface 1026a of the second circular arc column structure 304a.Such as Fig. 4 and shown in Figure 9, the 4th curve C 4 is that representative is across the position of the first horn shape section 1024, main part 1022 and the second horn shape section 1026 of the backlight module 300 of present embodiment and the relation curve of brightness.Relatively the first curve C 1 and the 4th curve C 4 as can be known, the first curve C 1 is that the gap of 0 millimeter corresponding brightness is that-80 millimeters and 80 millimeters corresponding brightness and position are the gap of 0 millimeter corresponding brightness in the position greater than the 4th curve C 4 in the position for-80 millimeters and 80 millimeters corresponding brightness and position.And, corresponding GTG brightness on the first curve C 1 and the corresponding GTG brightness of the 4th curve C 4 are as can be known, do not have the area source that the backlight module of the first microstructure and the second microstructure produces and have higher brightness in the position of the first horn shape section and the second horn shape section, and the area source that the backlight module 300 of present embodiment produces then has lower brightness in the position of the first horn shape section 1024 and the second horn shape section 1026.Hence one can see that, the first circular arc column structure 304a of the light guide plate 302 of present embodiment and the second circular arc column structure 306a also can reduce from the emitted light luminance of the second upper surface 1024a and the 3rd upper surface 1026a and gap from the emitted light luminance of the first upper surface 1022a, and homogenising light guide plate 302 is from the first upper surface 1022a, the second upper surface 1024a and the emitted area source of the 3rd upper surface 1026a.
Please refer to Figure 10 and Figure 11, and in the lump with reference to figure 4.Figure 10 be the utility model 1 the 4th preferred embodiment backlight module schematic side view, Figure 11 is that the backlight module of the utility model the 4th preferred embodiment is along the position and the relation of brightness and corresponding GTG brightness synoptic diagram of the direction of the profile line A-A ' of Fig. 1.As shown in figure 10, compared to the 3rd embodiment, the side that parallel second upper surface of the first circular arc column structure of the light guide plate of the backlight module of present embodiment is connected with main part, and the side that is connected with main part of parallel the 3rd upper surface of the second circular arc column structure.Such as Fig. 4 and shown in Figure 11, the 5th curve C 5 is that representative is across the position of the first horn shape section 1024, main part 1022 and the second horn shape section 1026 of the backlight module 400 of present embodiment and the relation curve of brightness.Relatively the first curve C 1 and the 5th curve C 4 as can be known, the first curve C 1 is that the gap of 0 millimeter corresponding brightness is that-80 millimeters and 80 millimeters corresponding brightness and position are the gap of 0 millimeter corresponding brightness in the position greater than the 5th curve C 5 in the position for-80 millimeters and 80 millimeters corresponding brightness and position.And, corresponding GTG brightness on the first curve C 1 and the corresponding GTG brightness of the 5th curve C 5 are as can be known, do not have the area source that the backlight module of the first microstructure and the second microstructure produces and have higher brightness in the position of the first horn shape section and the second horn shape section, and the area source that the backlight module 400 of present embodiment produces then has lower brightness in the position of the first horn shape section 1024 and the second horn shape section 1026.Hence one can see that, the first circular arc column structure 404 of the light guide plate 402 of present embodiment and the second circular arc column structure 406 also can reduce from the emitted light luminance of the second upper surface 1024a and the 3rd upper surface 1026a and gap from the emitted light luminance of the first upper surface 1022a, and homogenising light guide plate 402 is from the first upper surface 1022a, the second upper surface 1024a and the emitted area source of the 3rd upper surface 1026a.
In other embodiment of the present utility model, the first microstructure of light guide plate and the second microstructure are not limited to prismatic structure or circular arc column structure, also can be respectively an out-of-flatness plane or net-point shape structure, perhaps for having the microstructure of the optical characteristics such as refraction, reflection or scattering.Perhaps, the first microstructure and the second microstructure can be different structure, for example: the first microstructure comprises prismatic structure, circular arc column structure, net-point shape structure or out-of-flatness plane, and the second microstructure comprises prismatic structure, circular arc column structure, net-point shape structure or out-of-flatness plane.
Backlight module of the present utility model is not limit has two groups of light sources, also can only have single group of light source.Please refer to Figure 12, Figure 12 be the utility model 1 the 5th preferred embodiment backlight module diagrammatic cross-section.As shown in figure 12, compared to the first embodiment, the backlight module 500 of present embodiment only has the first light source 502, and does not have secondary light source.And light guide plate 504 only has the first horn shape section 1024 and does not have the second horn shape section, therefore only has the first microstructure 506.
In sum, the utility model is by the first microstructure being set and/or in the 3rd upper surface the second microstructure being set on the second upper surface that tilts towards main part, the light that the second upper surface and/or the 3rd upper surface are penetrated can reach the effect of atomizing, and avoids excessively concentrating towards this two position from the light of the second upper surface and/or the ejaculation of the 3rd upper surface.By this, can be with approaching from the emitted light luminance of the first upper surface of main part, with the surperficial from it emitted area source of homogenising light guide plate from the light luminance of the second upper surface and/or the ejaculation of the 3rd upper surface.
The above only is preferred embodiment of the present utility model, and all equalizations of doing according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (17)
1. the light guide plate with horn shape structure is characterized in that, comprising:
One main part has each other parallel one first upper surface and one first lower surface; And
One first horn shape section, has one second upper surface, this the first horn shape section is connected in a side of this main part, and the thickness of this first horn shape section is along with far away and larger with the distance of this main part, making this second upper surface of this first horn shape section is an inclined surface, and wherein this second upper surface of this first horn shape section has a plurality of the first microstructures.
2. the light guide plate with horn shape structure according to claim 1 is characterized in that, these first microstructures comprise a plurality of each other parallel prismatic structures.
3. the light guide plate with horn shape structure according to claim 2 is characterized in that, the side that these prismatic structures are connected with this main part perpendicular to this second upper surface.
4. the light guide plate with horn shape structure according to claim 2 is characterized in that, these prismatic structures are parallel to the side that this second upper surface is connected with this main part.
5. the light guide plate with horn shape structure according to claim 1 is characterized in that, these first microstructures comprise a plurality of each other parallel circular arc column structures.
6. the light guide plate with horn shape structure according to claim 5 is characterized in that, the side that these circular arc column structures are connected with this main part perpendicular to this second upper surface.
7. the light guide plate with horn shape structure according to claim 5 is characterized in that, these circular arc column structures are parallel to the side that this second upper surface is connected with this main part.
8. the light guide plate with horn shape structure according to claim 1, it is characterized in that, other comprises one second horn shape section, has one the 3rd upper surface, this the second horn shape section is connected in the opposite side of this main part, and the thickness of this second horn shape section is along with far away the 3rd upper surface that makes this second horn shape section is an inclined surface and larger with the distance of this main part, and wherein the 3rd upper surface of this second horn shape section has a plurality of the second microstructures.
9. a backlight module is characterized in that, comprising:
One light guide plate comprises:
One main part has one first parallel each other upper surface and one first lower surface; And
One first horn shape section, have one second upper surface, one second lower surface and one first incidence surface, this the first horn shape section is connected in a side of this main part, and the thickness of this first horn shape section is along with far away and larger with the distance of this main part, making this second upper surface of this first horn shape section is an inclined surface, and wherein this second upper surface of this first horn shape section has a plurality of the first microstructures; And
At least one the first light source is in the face of this first incidence surface setting.
10. backlight module according to claim 9 is characterized in that, these first microstructures comprise a plurality of each other parallel prismatic structures.
11. backlight module according to claim 10 is characterized in that, the side that vertical this second upper surface of these prismatic structures is connected with this main part.
12. backlight module according to claim 10 is characterized in that, the side that parallel this second upper surface of these prismatic structures is connected with this main part.
13. backlight module according to claim 9 is characterized in that, these first microstructures comprise a plurality of each other parallel circular arc column structures.
14. backlight module according to claim 13 is characterized in that, the side that vertical this second upper surface of these circular arc column structures is connected with this main part.
15. backlight module according to claim 13 is characterized in that, the side that parallel this second upper surface of these circular arc column structures is connected with this main part.
16. backlight module according to claim 9, it is characterized in that, other comprises one second horn shape section, have one the 3rd upper surface and one second incidence surface, this the second horn shape section is connected in the opposite side of this main part, and the thickness of this second horn shape section is along with far away the 3rd upper surface that makes this second horn shape section is an inclined surface and larger with the distance of this main part, and wherein the 3rd upper surface of this second horn shape section has a plurality of the second microstructures.
17. backlight module according to claim 16 is characterized in that, other comprises at least one secondary light source, in the face of this second incidence surface setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220339108 CN202815257U (en) | 2012-07-13 | 2012-07-13 | Light guide plate with trumpet-shaped structure and backlight module using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220339108 CN202815257U (en) | 2012-07-13 | 2012-07-13 | Light guide plate with trumpet-shaped structure and backlight module using same |
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| Publication Number | Publication Date |
|---|---|
| CN202815257U true CN202815257U (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220339108 Expired - Fee Related CN202815257U (en) | 2012-07-13 | 2012-07-13 | Light guide plate with trumpet-shaped structure and backlight module using same |
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| Country | Link |
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| CN (1) | CN202815257U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI484231B (en) * | 2014-06-16 | 2015-05-11 | Yu Chen Hwang | A light guiding decorative laminate and components made thereof |
| CN107479127A (en) * | 2017-09-11 | 2017-12-15 | 苏州天禄光科技股份有限公司 | A kind of horn mouth light guide plate and full wafer light guide plate heat-transferring method |
| CN114910993A (en) * | 2012-03-16 | 2022-08-16 | 瑞仪光电股份有限公司 | Light guide plate and light source module |
-
2012
- 2012-07-13 CN CN 201220339108 patent/CN202815257U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114910993A (en) * | 2012-03-16 | 2022-08-16 | 瑞仪光电股份有限公司 | Light guide plate and light source module |
| TWI484231B (en) * | 2014-06-16 | 2015-05-11 | Yu Chen Hwang | A light guiding decorative laminate and components made thereof |
| CN107479127A (en) * | 2017-09-11 | 2017-12-15 | 苏州天禄光科技股份有限公司 | A kind of horn mouth light guide plate and full wafer light guide plate heat-transferring method |
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