CN103116201B - Double-layer light guide plate structure and manufacturing method thereof and backlight module with double-layer light guide plate - Google Patents
Double-layer light guide plate structure and manufacturing method thereof and backlight module with double-layer light guide plate Download PDFInfo
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- CN103116201B CN103116201B CN201310085966.5A CN201310085966A CN103116201B CN 103116201 B CN103116201 B CN 103116201B CN 201310085966 A CN201310085966 A CN 201310085966A CN 103116201 B CN103116201 B CN 103116201B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000003466 welding Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims description 15
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- 238000002347 injection Methods 0.000 claims description 3
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- 230000000149 penetrating effect Effects 0.000 claims 3
- 230000003287 optical effect Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 27
- 238000000059 patterning Methods 0.000 description 15
- 230000000875 corresponding effect Effects 0.000 description 10
- 238000009826 distribution Methods 0.000 description 6
- 230000010354 integration Effects 0.000 description 4
- 206010020843 Hyperthermia Diseases 0.000 description 3
- 230000036031 hyperthermia Effects 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
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- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
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- 238000007499 fusion processing Methods 0.000 description 1
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Abstract
The invention provides a double-layer light guide plate structure and a manufacturing method thereof and a backlight module with the double-layer light guide plate, wherein the double-layer light guide plate structure comprises: the backlight module comprises a first light guide plate, a plurality of first supporting columns, a second light guide plate and a plurality of second supporting columns. The plurality of first supporting columns are positioned on the first light guide plate; the plurality of second supporting columns are positioned on the second light guide plate, and each second supporting column is integrally connected with the corresponding first supporting column through ultrasonic welding so as to maintain a gap between the first light guide plate and the second light guide plate. According to the light guide plate structure and the manufacturing method thereof, the double-layer light guide plates can be integrated to avoid mutual collision, and the integral strength is increased through the integrated structure. In addition, the first light guide plate and the second light guide plate can respectively adjust the optical quality, and the optical quality requirement can be more easily met.
Description
Technical field
The present invention relates to a kind of light conducting plate structure and manufacture method thereof, particularly relate to a kind of double layer light-guiding plate structure and manufacture method thereof, and there is the backlight module of double layer light guide board.
Background technology
In recent years, due to LCD(liquid crystal display, Liquid Crystal Display), PDP(plasma scope, Plasma Display Panel) etc. flat-panel screens there is frivolous advantage, replace CRT(cathode-ray tube (CRT) gradually, Cathode Ray Tube) display, and become the main flow of monitor market, be used in the products such as TV, notebook computer, mobile phone widely.
General electronic installation mostly has a themselves one-sided displays, it only has a display surface, but along with the amplification of its range of application, some application may need the display device of two display screen, such as at public domain or recreation ground, allowed the data can watched per capita shown by display device of diverse location by the mode of double-sided display.
Referring to shown in Fig. 1, is a kind of schematic diagram of known display with double faces structure.Known display with double faces A1 only uses a light guide plate A11, is provided with blooming piece A12 and top panel A13 in a side of light guide plate A11, and another side is provided with blooming piece A14 and lower panel A15, then is fixed on outside framework A16.In this kind of display with double faces A1, the upper and lower surface of light guide plate A11 is all exiting surface, and is all provided with microstructure (not shown), therefore, cannot adjust optics respectively with regard to top panel A13 and lower panel A15 to sample, the adjustment degree of difficulty causing optics to sample is quite high.
Referring to shown in Fig. 2, is the schematic diagram of the known display with double faces structure of another kind.Another kind of known display with double faces A2 is provided with two light guide plate A21, one of them light guide plate A21 is provided with blooming piece A22 and top panel A23 in one side, another side is towards another light guide plate A21, and, another light guide plate A21 is provided with blooming piece A24 and lower panel A25 in one side, and two light guide plate A21 do not contact with each other and are separately fixed on outside framework A26 in modes such as sealed or engagings.In this kind of display with double faces A2, though distinctly can adjust optics taste because it is provided with two light guide plate A21, but because two light guide plate A21 are distinctly fixed on outside framework A26, and, distance between two light guide plate A21 is quite near, causes its assembling quite complicated, in addition, display with double faces A2, when there is vibration, easily causes two light guide plate A21 to collide with each other scratch.
Summary of the invention
In view of this, in order to overcome the defect of prior art, the present invention proposes a kind of embodiment of double layer light-guiding plate structure, comprises: the first light guide plate, multiple first support column, the second light guide plate.Wherein, the first light guide plate comprises the first relative exiting surface and the first non-exiting surface; Multiple first support column is positioned at the first non-exiting surface; Second light guide plate comprises the second relative exiting surface and the second non-exiting surface, second non-exiting surface is towards the first non-exiting surface, each first support column is resisted against the second light guide plate, each first support column and the second light guide plate are integrally bonded, in order to maintain the gap between the first light guide plate and the second light guide plate via ultrasonic welding.
The present invention separately proposes a kind of embodiment of manufacture method of double layer light-guiding plate structure, comprises: penetrate the first light guide plate and multiple first support column, multiple first support column is arranged in the first light guide plate; Injection or hot pressing second light guide plate; Superimposed first light guide plate and the second light guide plate, make each first support column be connected to the second light guide plate; Ultrasonic welding first light guide plate and the second light guide plate, make each first support column and the second light guide plate be integrally bonded.
The present invention separately proposes a kind of embodiment with the backlight module of double layer light guide board, comprises: double layer light-guiding plate structure, framework, light source module.Wherein, framework storage double layer light-guiding plate structure; Light source module, makes light be penetrated by the first exiting surface and the second exiting surface towards double layer light guide board arrangement projects light.
According to light conducting plate structure of the present invention and manufacture method thereof, by the integration of the light guide plate of bilayer, to avoid it to collide with each other, and bulk strength can be increased by the structure of integration.In addition, the first light guide plate and the second light guide plate distinctly can adjust optical quality, more easily reach optics taste requirement.
Below detailed features of the present invention and advantage is described in embodiments in detail, its content is enough to make any those of ordinary skill in the art understand technology contents of the present invention and implement according to this, and according to content disclosed in the present specification, claim and accompanying drawing, any those of ordinary skill in the art can understand the object and advantage that the present invention is correlated with easily.
Accompanying drawing explanation
Fig. 1 is the schematic diagram () of known display with double faces structure.
Fig. 2 is the schematic diagram (two) of known display with double faces structure.
Fig. 3 A is the schematic diagram of the first embodiment of the present invention before ultrasonic welding.
Fig. 3 B is the schematic diagram of the first embodiment of the present invention after ultrasonic welding.
Fig. 3 C is the schematic diagram () of light conducting board from deformation.
Fig. 3 D is the schematic diagram () of light conducting board from deformation.
Fig. 4 A is the schematic diagram () that the present invention arranges multiple pattern.
Fig. 4 B is the schematic diagram (two) that the present invention arranges multiple pattern.
Fig. 4 C is the schematic top plan view of Fig. 4 B first light guide plate.
Fig. 4 D is the schematic diagram (three) that the present invention arranges multiple pattern.
Fig. 4 E is the schematic diagram (four) that the present invention arranges multiple pattern.
Fig. 4 F is the schematic diagram (five) that the present invention arranges multiple pattern.
Fig. 5 A is the schematic diagram () that the second embodiment of the present invention arranges reflecting element.
Fig. 5 B is the schematic diagram (two) that the second embodiment of the present invention arranges reflecting element.
Fig. 5 C is the schematic diagram (three) that the second embodiment of the present invention arranges reflecting element.
Fig. 5 D is that light of the present invention is advanced schematic diagram.
Fig. 6 A is that the present invention does not arrange the schematic diagram of support column in centre.
Fig. 6 B is the Luminance Distribution schematic diagram of Fig. 6 A.
Fig. 6 C is the schematic cross-section of Fig. 6 B.
Fig. 7 A is that the present invention arranges the schematic diagram of micro structured pattern in centre.
Fig. 7 B is the Luminance Distribution schematic diagram of Fig. 7 A.
Fig. 7 C is the schematic cross-section of Fig. 7 B.
Fig. 8 A is that the present invention arranges the schematic diagram of support column in centre.
Fig. 8 B is the Luminance Distribution schematic diagram of Fig. 8 A.
Fig. 8 C is the schematic cross-section of Fig. 8 B.
Fig. 9 is the schematic diagram that the double-deck backlight modular structure of the present invention is shown.
Figure 10 is the flow chart of steps of manufacture method of the present invention.
Wherein, description of reference numerals is as follows:
1.......... double layer light-guiding plate structure
2.......... the first light guide plate
21.......... the first exiting surface
22.......... the first non-exiting surface
25.......... the first pattern
3.......... the first support column
31.......... the first end face
5.......... the second light guide plate
51.......... the second exiting surface
52.......... the second non-exiting surface
55.......... the second pattern
6.......... the second support column
61.......... the second end face
7.......... reflecting element
71/72........ surface
8.......... framework
9.......... light source module
91.......... substrate
92.......... light-emitting component
A1......... display with double faces
A11......... light guide plate
A12/A14...... blooming piece
A13......... top panel
A15......... lower panel
A16......... outside framework
A2......... display with double faces
A21......... light guide plate
A22/A24...... blooming piece
A23......... top panel
A25......... lower panel
A26......... outside framework
Embodiment
Fig. 3 A and Fig. 3 B is the first embodiment that double layer light-guiding plate structure of the present invention is shown.Fig. 3 A is the schematic diagram of double layer light guide board before ultrasonic welding, and Fig. 3 B is the schematic diagram of double layer light guide board after ultrasonic welding.
As shown in Figure 3A, in the first example of the present invention, double layer light-guiding plate structure 1 comprises: the first light guide plate 2, multiple first support column 3, second light guide plate 5, multiple second support column 6.
First light guide plate 2 is generally rectangular sheet body structure, has the first relative exiting surface 21 and the first non-exiting surface 22.Multiple first support column 3 is formed on the first non-exiting surface 22 of the first light guide plate 2 in integrally formed mode, and, first support column 3 has the first end face 31, the area of section that first support column 3 connects the first non-exiting surface 22 place is more than or equal to the area of section of the first end face 31, Overall View it, first support column 3 is by the direction linearly gradually-reducing shape (as shown in Figure 3A, transverse section be trapezoidal shape) of the non-exiting surface 22 of connection first to the first end face 31.Only the first support column 3 linearly gradually-reducing shape be only citing, the present invention is non-as limit, and such as the first support column 3 maybe can, structure that end face cross section little large in stepped tapered configuration or other cross sections, junction.
Second light guide plate 5 is generally rectangular sheet body structure, has the second relative exiting surface 51 and the second non-exiting surface 52.Multiple second support column 6 is formed on the second non-exiting surface 52 of the second light guide plate 5 in integrally formed mode, and, second support column 6 has the second end face 61, the area of section that second support column 6 connects the second non-exiting surface 52 place is more than or equal to the area of section of the second end face 61, Overall View, second support column 6 is by the direction linearly gradually-reducing shape (as shown in Figure 3A, transverse section be trapezoidal shape) of the non-exiting surface 52 of connection second to the second end face 61.Only the second support column 6 linearly gradually-reducing shape be only citing, the present invention is non-as limit, and such as the second support column 6 maybe can, structure that end face cross section little large in stepped tapered configuration or other cross sections, junction.
First light guide plate 2 and the second light guide plate 5 phase poststack, first non-exiting surface 22 of the first light guide plate 2, towards the second non-exiting surface 52 of the second light guide plate 5, makes the first end face 31 of each the first support column 3 to the second end face 61 being affixed on each corresponding the second support column 6.
As shown in Figure 3 B, when the first light guide plate 2 and the second light guide plate 5 phase poststack, be placed on supersonic welder, with ultrasonic welding first light guide plate 2 and the second light guide plate 5, the first end face 31 of the first support column 3 is made to produce localized hyperthermia with the second end face 61 severe friction of the second corresponding support column 6, first end face 31 and the second end face 61 melt and are integrally bonded, in order to maintain the gap between the first light guide plate 2 and the second light guide plate 5.In the present embodiment, after first support column 3 and the second support column 6 are fused into one with ultrasonic, cross-sectional sizes is become identical (as shown in Figure 3 B from original gradually-reducing shape structure, transverse section is rectangular-shaped) column structure, but the present invention is non-as limit, the shape after its welding changes according to the difference of its original tapered configuration.
It should be noted that the quantity of the first support column 3 and the second corresponding support column 6 and position need be configured according to the weight of the first light guide plate 2 and the second light guide plate 5 and deflection thereof, to guarantee that the first light guide plate 2 and the second light guide plate 5 can not collide.As shown in figure 3C, the lazy weight of the first support column 3 and the second corresponding support column 6, causes the first light guide plate 2 first light guide plate 2 and the second light guide plate 5 to be collided because of the distortion that own wt occurs.As shown in Figure 3 D, the quantity of the first support column 3 and the second corresponding support column 6 and location-appropriate, although the first light guide plate 2 deforms because of own wt, do not collide with the second light guide plate 5.Typically, the first support column 3 and the second corresponding support column 6 are evenly configured in the first light guide plate 2 and the second light guide plate 5.
As shown in Figure 4 A, in certain embodiments, first light guide plate 2 can be provided with multiple first pattern (pattern) 25 in its first non-exiting surface 22, second light guide plate 5 can be provided with multiple second pattern (pattern) 55 in its second non-exiting surface 52, in certain embodiments, more multiple first pattern 25 in position that first support column 3 is arranged is near the periphery of the first non-exiting surface 22, more multiple second pattern 55 in position that second support column 6 is arranged is near the periphery of the second non-exiting surface 52, in other words, first support column 3 is arranged at the outer rim of multiple first pattern 25, second support column 6 is arranged at the outer rim of multiple second pattern 55.Wherein, the height essence of the first support column 3 is greater than the height of the first pattern 25, and the height essence of the second support column 6 is greater than the height of the second pattern 55.
As shown in Fig. 4 B and Fig. 4 C, in certain embodiments, first support column 3 of a part is arranged at the outer rim of multiple first pattern 25, first support column 3 of another part can be arranged between multiple first pattern 25, second support column 6 of a part is arranged at the outer rim of multiple second pattern 55, and second support column 6 of another part can be arranged between multiple second pattern 55.In certain embodiments, the first support column 3 between multiple first pattern 25 arranges the first pattern 25 in its first end face 31, the second support column 6 between multiple second pattern 55 arranges the second pattern 55 in its second end face 61, in other words, the first support column 3 between pattern and the second support column 6 can be considered the some of patterning.
As shown in Figure 4 D, in certain embodiments, first support column 3 is identical patterning with the first pattern 25, second support column 6 is identical patterning with the second pattern 55, and these patternings have certain height, via ultrasonic welding, the patterning of the patterning of the first light guide plate 2 and the second light guide plate 5 be integrally bonded and become multiple support column.
Aforementioned explanation is only citing about the setting position of support column and pattern, the present invention is non-as limit, the present invention can only arrange multiple first pattern 25 and not arrange support column 3 in the first light guide plate 2, or only multiple second pattern 55 is set in the second light guide plate 5 and support column 6 is not set, or be that the first light guide plate 2 and/or the second light guide plate 5 can arrange patterning at its exiting surface further.
As shown in Figure 4 E, in certain embodiments, the first light guide plate 2 forms multiple first support column 3 in the first non-exiting surface 22 in integrally formed mode, and the first non-exiting surface 22 is provided with multiple first pattern 25.When the first light guide plate 2 and the second light guide plate 5 phase poststack, be placed on supersonic welder, with ultrasonic welding first light guide plate 2 and the second light guide plate 5, make the first end face 31 of the first support column 3 and the second non-exiting surface 52 severe friction of the second light guide plate 5 and produce localized hyperthermia, making the first end face 31 and the second non-exiting surface 52 melt and be integrally bonded.As illustrated in figure 4f, in certain embodiments, the first support column 3 is the patterning identical with the first pattern 25, via ultrasonic welding, the patterning of the first light guide plate 2 and the second light guide plate 5 is integrally bonded.
Fig. 5 A, Fig. 5 B and Fig. 5 C are the second embodiments that double layer light-guiding plate structure of the present invention is shown.The difference of the present embodiment and the first embodiment is: the present embodiment has reflecting element 7.
As shown in Figure 5A, reflecting element 7 can be pre-aligned in the second light guide plate 5, after the first light guide plate 2 and the second light guide plate 5 are fused into one with ultrasonic, reflecting element 7 is between the first non-exiting surface 22 and the second non-exiting surface 52 of the second light guide plate 5 of the first light guide plate 2, and, as shown in Fig. 5 A and Fig. 5 B, the reflecting element 7 in the second light guide plate 5 does not cover the second support column 6 of outer rim, does not therefore affect the fusion between multiple first support column 3 and multiple second support column 6.The surface 71 of reflecting element 7 and surface 72 can contact with the first pattern 25 and the second pattern 55 or adjacent and do not contact respectively.At this, reflecting element 7 first can be reserved and support post holes position or configuration design breach, to avoid interfering with the first support column 3 or the second support column 6.
As shown in Figure 5 C, in certain embodiments, first support column 3 is patterning, second support column 6 is patterning, first reflecting element 7 is placed between the first light guide plate 2 and the second light guide plate 5, then via ultrasonic welding, the patterning of the patterning of the first light guide plate 2 and the second light guide plate 5 is integrally bonded.In fusion process, control the gap between the first light guide plate 2 and the second light guide plate 5, the second non-exiting surface 52 making first of the first light guide plate 2 the non-exiting surface 22 be attached at surface 71, second light guide plate 5 of reflecting element 7 is attached at the surface 72 of reflecting element 7.
The aforementioned explanation about reflecting element 7 is only citing, and the present invention is non-as limit, and the material that those of ordinary skill in the art can have reflective character is coated the reflector layer that light guide plate is formed and substituted.
As shown in Figure 5 D, for light of the present invention is advanced schematic diagram.First support column 3 and the second support column 6 maintain the clearance D between the first light guide plate 2 and the second light guide plate 5, collide in vibration-testing or transport process to avoid the first light guide plate 2 and the second light guide plate 5.First pattern 25 and 55, the second pattern are the direct of travel and the path that change light, to reach the specification of optical uniformity, such as when light does not meet the first pattern 25(or the second pattern 55), its direct of travel is the path of anaclasis (light reflection), as shown in direct of travel B; Such as when light meets the first pattern 25(or the second pattern 55), its direct of travel then can change, as shown in direct of travel A.
As shown in Figure 6A, when when the first support column 3 is arranged at the outer rim of the first light guide plate 2 two end, the second support column 6 is arranged at the outer rim of the second light guide plate 5 two end, the Luminance Distribution of double layer light-guiding plate structure 1 as shown in Figure 6B, wherein, X-direction represents position, Y direction represents energy, each position of double layer light-guiding plate structure 1 shows the luminance energy of this position according to its color difference, and Fig. 6 C is the schematic cross-section of Fig. 6 B, the line that wherein color is darker is the cross section of horizontal direction, and the more shallow line of color is the cross section of vertical direction.As shown in Figure 7 A, the centre of double layer light-guiding plate structure 1 is that the first support column 3 is connected with the second support column 6, and as shown in Figure 7 B, and Fig. 7 C is the schematic cross-section of Fig. 7 B to its Luminance Distribution.As shown in Figure 8 A, the centre of double layer light-guiding plate structure 1 is that the first support column 3 is connected with the second support column 6, and as shown in Figure 8 B, and Fig. 8 C is the schematic cross-section of Fig. 8 B to its Luminance Distribution.Can be known by preceding figures and find out, no matter first support column 3, second support column 6, first pattern 25 and the second pattern 55 are set in position, where, energy variation difference is little, and there is no the generation of the phenomenons such as bright blanking bar yet, therefore, the setting of the first support column 3, second support column 6, first pattern 25 and the second pattern 55 can't affect optics taste.At this, first support column 3, the diameter of the second support column 6 can be respectively the first pattern 25, one times of (i.e. first support column 3 of anticipating of the diameter of the second pattern 55, the diameter of the second support column 6 equals the first pattern 25, the diameter of the second pattern 55) to five times, first support column 3, namely second support column 6 can not affect optics taste, wherein, first support column 3, the diameter of the second support column 6 preferably can be and is less than or equal to the first pattern 25, three times of the diameter of the second pattern 55, such as: the first pattern 25, the diameter of the second pattern 55 is 50um, first support column 3, as long as the diameter of the second support column 6 is less than or equal to 250um, preferably for being less than or equal to 150um.
Fig. 9 is the embodiment that the double-deck backlight modular structure of the present invention is shown.As shown in Figure 9, in the first example of the present invention, double-deck backlight modular structure comprises: double layer light-guiding plate structure 1, framework 8, light source module 9.
Framework 8 is generally rectangular hollow frame, in order to receive double layer light-guiding plate structure 1, makes double layer light-guiding plate structure 1 firmly can be positioned the hollow position place of framework 8.At this, the structure of double layer light-guiding plate structure 1 is same as any embodiment structure of aforementioned explanation, is not repeated at this.
Light source module 9 preferably can be made up of substrate 91 and light-emitting component 92, be positioned framework 8 inner edge and between double layer light-guiding plate structure 1 and framework 8, respectively towards the two panels light guide plate throw light of double layer light-guiding plate structure 1, light is penetrated by the first exiting surface 21 of double layer light-guiding plate structure 1 and the second exiting surface 51.Light source module 9 can be arranged at the one or both sides of double layer light-guiding plate structure 1, can according to design alteration.
Figure 10 is the embodiment of the manufacture method that double layer light-guiding plate structure of the present invention is shown.The manufacture method of double layer light-guiding plate structure of the present invention comprises:
Step S1: penetrate the first light guide plate 2 and multiple first support column 3, multiple first support column 3 is arranged in the first light guide plate 2.
First light guide plate 2 has the first relative exiting surface 21 and the first non-exiting surface 22.Multiple first support column 3 is formed on the first non-exiting surface 22 of the first light guide plate 2 in integrally formed mode, and, first support column 3 has the first end face 31, first support column 3 is by the direction linearly gradually-reducing shape of the non-exiting surface 22 of connection first to the first end face 31, its structure and position as previously mentioned, are not repeated at this.
In this step, can arrange multiple first pattern 25 further on the first non-exiting surface 22 of the first light guide plate 2, or can arrange the first pattern 25 further in the first end face 31 of the first support column 3, in other words, the first support column 3 can be set to patterning.
Step S2: penetrate the second light guide plate 5 and multiple second support column 6, multiple second supports 5 posts is arranged in the second light guide plate 6.
In this step, the second light guide plate 5 is for made by ejection formation or hot-forming (thermoforming).Second light guide plate 5 has the second relative exiting surface 51 and the second non-exiting surface 52.Multiple second support column 6 is formed on the second non-exiting surface 52 of the second light guide plate 5 in integrally formed mode, and, second support column 6 has the second end face 61, second support column 6 is by the direction linearly gradually-reducing shape of the non-exiting surface 52 of connection second to the second end face 61, its structure and position as previously mentioned, are not repeated at this.
In this step, can arrange multiple first pattern 55 further on the second non-exiting surface 52 of the second light guide plate 5, or can arrange the first pattern 25 further in the second end face 61 of the second support column 6, in other words, the second support column 6 can be set to patterning.
Upon step s 2, also comprise: reflecting element 7 is provided, be positioned in the second light guide plate 5.At this, reflecting element 7 can substitute by reflector layer, and it is not repeated at this as previously mentioned.
At this, the diameter of the first support column 3, second support column 6 can be one times to five times of the diameter of the first pattern 25, second pattern 55, wherein, the diameter of the first support column 3, second support column 6 preferably can be three times of the diameter being less than or equal to the first pattern 25, second pattern 55, it is not repeated at this as previously mentioned.
Step S3: superimposed first light guide plate 2 and the second light guide plate 5, makes each second support column 6 be connected to the first corresponding support column 3.
First light guide plate 2 and the second light guide plate 5 phase poststack, first non-exiting surface 22 of the first light guide plate 2, towards the second non-exiting surface 52 of the second light guide plate 5, makes the first end face 31 of each the first support column 3 to the second end face 61 being affixed on each corresponding the second support column 6.
If be positioned by reflecting element 7 upon step s 2 in the second light guide plate 5, in this step, in the first light guide plate 2 and the second light guide plate 5 phase poststack, reflecting element 7 can between the first light guide plate 2 and the second light guide plate 5.As previously mentioned, structure, the position of the first support column 3 and the second support column 6 are different, the two side faces of reflecting element 7 can be attached at the first non-exiting surface 22 and the second non-exiting surface 52 respectively, or be that the two side faces of reflecting element 7 at a distance of a spacing respectively and between the non-exiting surface 52 of the first non-exiting surface 22, second, can be not repeated at this.
Step S4: ultrasonic welding first light guide plate 2 and the second light guide plate 5, makes each second support column 6 be integrally bonded with the first corresponding support column 3.
The first light guide plate 2 be superimposed and the second light guide plate 5 are placed on supersonic welder, with ultrasonic welding first light guide plate 2 and the second light guide plate 5, make the first end face 31 of the first support column 3 produce localized hyperthermia with the second end face 61 severe friction of the second corresponding support column 6, make the first end face 31 and the second end face 61 melt and be integrally bonded.As previously mentioned, along with the structure of the first support column 3 and the second support column 6, position are different, its engage after structure also different, be not repeated at this.
In sum, according to light conducting plate structure of the present invention and manufacture method thereof, by the integration of the light guide plate of bilayer, to avoid it to collide with each other, and bulk strength can be increased by the structure of integration.In addition, the first light guide plate and the second light guide plate distinctly can adjust optical quality, more easily reach optics taste requirement.
Although the present invention discloses as above with aforesaid embodiment; so itself and be not used to limit the present invention; any those of ordinary skill in the art; without departing from the spirit and scope of the present invention; when doing a little change and retouching, the scope that therefore scope of patent protection of the present invention must define depending on the claim appended by this instructions is as the criterion.
Claims (11)
1. a double layer light-guiding plate structure, comprises:
One first light guide plate, comprises one first relative exiting surface and one first non-exiting surface;
Multiple first support column, is positioned at this first non-exiting surface;
One second light guide plate, comprises one second relative exiting surface and one second non-exiting surface, this second non-exiting surface towards this first non-exiting surface,
Each this first support column is resisted against this second light guide plate, each this first support column and this second light guide plate is integrally bonded, in order to maintain the gap between this first light guide plate and this second light guide plate via ultrasonic welding;
This first light guide plate also comprises multiple first pattern, and be positioned at this first non-exiting surface, this second light guide plate also comprises multiple second pattern, is positioned at this second non-exiting surface;
This second light guide plate also comprises multiple second support column, is positioned at this second non-exiting surface; Wherein
More described multiple first pattern of described multiple first support column is near the periphery of this first non-exiting surface, and more described multiple second pattern of described multiple second support column is near the periphery of this second non-exiting surface.
2. a double layer light-guiding plate structure, comprises:
One first light guide plate, comprises one first relative exiting surface and one first non-exiting surface;
Multiple first support column, is positioned at this first non-exiting surface;
One second light guide plate, comprises one second relative exiting surface and one second non-exiting surface, this second non-exiting surface towards this first non-exiting surface,
Each this first support column is resisted against this second light guide plate, each this first support column and this second light guide plate is integrally bonded, in order to maintain the gap between this first light guide plate and this second light guide plate via ultrasonic welding;
This first light guide plate also comprises multiple first pattern, and be positioned at this first non-exiting surface, this second light guide plate also comprises multiple second pattern, is positioned at this second non-exiting surface;
This second light guide plate also comprises multiple second support column, is positioned at this second non-exiting surface; Wherein
Described multiple first support column is between described multiple first pattern, and described multiple second support column is between described multiple second pattern.
3. double layer light-guiding plate structure as claimed in claim 1 or 2, the diameter of wherein said multiple first support column is less than or equal to five times of the diameter of described multiple first pattern.
4. double layer light-guiding plate structure as claimed in claim 1 or 2, also comprises: a reflecting element, to be positioned in this second light guide plate between this first non-exiting surface and this second non-exiting surface.
5. double layer light-guiding plate structure as claimed in claim 4, wherein this first non-exiting surface and this second non-exiting surface are attached at the surface of this reflecting element respectively.
6. a manufacture method for double layer light-guiding plate structure, comprises:
Penetrate one first light guide plate and multiple first support column, described multiple first support column is arranged in this first light guide plate;
Injection or hot pressing one second light guide plate;
This first light guide plate superimposed and this second light guide plate, make each this first support column be connected to this second light guide plate; And
This first light guide plate of ultrasonic welding and this second light guide plate, make each this first support column and this second light guide plate be integrally bonded.
7. the manufacture method of double layer light-guiding plate structure as claimed in claim 6, wherein in injection or this second light guide plate of hot pressing step in, comprise: multiple second support column is set in this second light guide plate, in the step of this first light guide plate superimposed and this second light guide plate, each this second support column is connected to this corresponding first support column.
8. the manufacture method of double layer light-guiding plate structure as claimed in claim 7, wherein in the step penetrating this first light guide plate and described multiple first support column, comprise: multiple first pattern is set in the one side of this first light guide plate, in the step penetrating this second light guide plate and described multiple second support column, comprise: multiple second pattern is set in the one side of this second light guide plate.
9. the manufacture method of double layer light-guiding plate structure as claimed in claim 6, wherein after the step penetrating this first light guide plate and described multiple first support column, before this first light guide plate superimposed and this second light guide plate, also comprise: a reflecting element is provided, be positioned in this second light guide plate.
10. the manufacture method of double layer light-guiding plate structure as claimed in claim 9, wherein in the step of this first light guide plate superimposed and this second light guide plate, is arranged at this reflecting element between this first light guide plate and this second light guide plate.
11. 1 kinds of backlight modules with double layer light guide board, comprise:
Double layer light-guiding plate structure as described in any one of claim 1-5;
One framework, receives this double layer light-guiding plate structure; And
At least one light source module, makes light be penetrated by this first exiting surface and this second exiting surface towards this double layer light guide board arrangement projects light.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101139781A TWI489157B (en) | 2012-10-26 | 2012-10-26 | Twins light guiding plate and manufacturing method thereof and backlight module with twins light guiding plate |
| TW101139781 | 2012-10-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103116201A CN103116201A (en) | 2013-05-22 |
| CN103116201B true CN103116201B (en) | 2015-04-08 |
Family
ID=48414627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310085966.5A Expired - Fee Related CN103116201B (en) | 2012-10-26 | 2013-03-18 | Double-layer light guide plate structure and manufacturing method thereof and backlight module with double-layer light guide plate |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103116201B (en) |
| TW (1) | TWI489157B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106054453A (en) * | 2016-07-11 | 2016-10-26 | 深圳天珑无线科技有限公司 | Double-faced backlight module and liquid crystal display module |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999028890A1 (en) * | 1997-11-29 | 1999-06-10 | Koninklijke Philips Electronics N.V. | Display device comprising a light guide |
| JP2005532583A (en) * | 2002-07-08 | 2005-10-27 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Foil display with two light guides |
| TWI340259B (en) * | 2006-12-29 | 2011-04-11 | Ind Tech Res Inst | Light guide plate |
| TWM375892U (en) * | 2009-08-12 | 2010-03-11 | Day Sun Ind Corp | Tow-sided light-emitting light-guiding plate |
| TW201102687A (en) * | 2010-09-16 | 2011-01-16 | Global Lighting Technologies | A light-guide plate with emitting from it's double sides and method of manufacturing |
| EP2466349A1 (en) * | 2010-12-17 | 2012-06-20 | 3M Innovative Properties Company | Light guide illumination device with fibrous diffuser layer |
| KR101833969B1 (en) * | 2011-01-03 | 2018-04-16 | 엘지디스플레이 주식회사 | Two-way liquid crystal display device |
| TWI541570B (en) * | 2011-04-01 | 2016-07-11 | 揚昇照明股份有限公司 | Light source module |
-
2012
- 2012-10-26 TW TW101139781A patent/TWI489157B/en not_active IP Right Cessation
-
2013
- 2013-03-18 CN CN201310085966.5A patent/CN103116201B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| TW201416731A (en) | 2014-05-01 |
| TWI489157B (en) | 2015-06-21 |
| CN103116201A (en) | 2013-05-22 |
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