CN103116201A - 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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- CN103116201A CN103116201A CN2013100859665A CN201310085966A CN103116201A CN 103116201 A CN103116201 A CN 103116201A CN 2013100859665 A CN2013100859665 A CN 2013100859665A CN 201310085966 A CN201310085966 A CN 201310085966A CN 103116201 A CN103116201 A CN 103116201A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000003466 welding Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims description 15
- 238000007731 hot pressing Methods 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 abstract description 4
- 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
- 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
- 238000010257 thawing Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 238000009434 installation 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, relate in particular to a kind of double layer light-guiding plate structure and manufacture method thereof, and the backlight module with double layer light guide board.
Background technology
In recent years, due to the LCD(liquid crystal display, Liquid Crystal Display), PDP(plasma scope, Plasma Display Panel) etc. flat-panel screens has frivolous advantage, replace gradually the CRT(cathode-ray tube (CRT), Cathode Ray Tube) display, and become the main flow of monitor market, be used in widely the products such as TV, notebook computer, mobile phone.
General electronic installation mostly has a themselves one-sided displays, it only has a display surface, but the amplification along with its range of application, the display device that may need two display screens on some is used, for example in the public domain or recreation ground, what the mode by double-sided display allowed diverse location can watch the shown data of display device per capita.
See also shown in Figure 1ly, be 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 the side of light guide plate A11, and the another side is provided with blooming piece A14 and lower panel A15, then is fixed on outside framework A16.In this kind display with double faces A1, the upper and lower surface of light guide plate A11 is all exiting surface, and all is provided with the microstructure (not shown), therefore, can't adjust respectively the optics taste with regard to top panel A13 and lower panel A15, cause the adjustment degree of difficulty of optics taste quite high.
See also shown in Figure 2ly, be 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 the one side, the 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 the one side, and two light guide plate A21 are not in contact with one another and are separately fixed on outside framework A26 in modes such as sealed or engagings.In this kind display with double faces A2, though can distinctly adjust the optics taste because it is provided with two light guide plate A21, but because two light guide plate A21 distinctly are 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 easily causes two light guide plate A21 scratch that collides with each other when vibration-generating.
Summary of the invention
In view of this, in order to overcome the defective of prior art, the present invention proposes a kind of embodiment of double layer light-guiding plate structure, comprises: the first light guide plate, a plurality of the 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; A plurality of the first support columns are positioned at the first non-exiting surface; The second light guide plate comprises the second relative exiting surface and the second non-exiting surface, the second non-exiting surface is towards the first non-exiting surface, each first support column is resisted against the second light guide plate, make each first support column and the second light guide plate be bonded into one via the ultrasonic welding, in order to keep the gap between the first light guide plate and the second light guide plate.
The another embodiment that proposes a kind of manufacture method of double layer light-guiding plate structure of the present invention, comprise: penetrate the first light guide plate and a plurality of the first support column, a plurality of the first support columns are arranged on the first light guide plate; Penetrate or hot pressing the second light guide plate; Superimposed the 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 the first light guide plate and the second light guide plate make each first support column and the second light guide plate be bonded into one.
A kind of embodiment with backlight module of double layer light guide board of the another proposition of the present invention comprises: double layer light-guiding plate structure, framework, light source module.Wherein, framework is taken in the 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-guiding plate structure throw light.
According to light conducting plate structure of the present invention and manufacture method thereof, can the light guide plate of bilayer is integrated, collide with each other to avoid it, and increase bulk strength by integrated structure.In addition, the first light guide plate and the second light guide plate can distinctly be adjusted optical quality, more easily reach optics taste requirement.
Below be described in detail detailed features of the present invention and advantage in embodiment, its content is enough to make any those of ordinary skills 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 skills can understand purpose and the advantage that the present invention is correlated with easily.
Description of drawings
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 the ultrasonic welding.
Fig. 3 B is the schematic diagram of the first embodiment of the present invention after the 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 a plurality of patterns.
Fig. 4 B is the schematic diagram (two) that the present invention arranges a plurality of patterns.
Fig. 4 C is the schematic top plan view of Fig. 4 B the first light guide plate.
Fig. 4 D is the schematic diagram (three) that the present invention arranges a plurality of patterns.
Fig. 4 E is the schematic diagram (four) that the present invention arranges a plurality of patterns.
Fig. 4 F is the schematic diagram (five) that the present invention arranges a plurality of patterns.
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 the light of the present invention schematic diagram of advancing.
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 are 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 the ultrasonic welding, and Fig. 3 B is the schematic diagram of double layer light guide board after the ultrasonic welding.
As shown in Figure 3A, double layer light-guiding plate structure 1 comprises in the first example of the present invention: the first light guide plate 2, a plurality of the first support column 3, the second light guide plate 5, a plurality of the second support column 6.
The first light guide plate 2 is general rectangular sheet body structure, has the first relative exiting surface 21 and the first non-exiting surface 22.A plurality of the first support columns 3 are formed on the first non-exiting surface 22 of the first light guide plate 2 in integrally formed mode, and, the first support column 3 has the first end face 31, the first support column 3 connects the area of section at the first non-exiting surface 22 places more than or equal to the area of section of the first end face 31, Overall View it, the first support column 3 is by connecting the first non-exiting surface 22 places to the direction of the first end face 31 gradually-reducing shape (as shown in Figure 3A, the transverse section is trapezoidal shape) linearly.Only linearly gradually-reducing shape is only for giving an example for the first support column 3, and the present invention is non-as limit, and for example the first support column 3 maybe can be stepped tapered configuration or other cross sections, junction are large, the little structure in end face cross section.
The second light guide plate 5 is general rectangular sheet body structure, has the second relative exiting surface 51 and the second non-exiting surface 52.A plurality of the second support columns 6 are formed on the second non-exiting surface 52 of the second light guide plate 5 in integrally formed mode, and, the second support column 6 has the second end face 61, the second support column 6 connects the area of section at the second non-exiting surface 52 places more than or equal to the area of section of the second end face 61, Overall View, the second support column 6 is by connecting the second non-exiting surface 52 places to the direction of the second end face 61 gradually-reducing shape (as shown in Figure 3A, the transverse section is trapezoidal shape) linearly.Only linearly gradually-reducing shape is only for giving an example for the second support column 6, and the present invention is non-as limit, and for example the second support column 6 maybe can be stepped tapered configuration or other cross sections, junction are large, the little structure in end face cross section.
The first light guide plate 2 and the second light guide plate 5 phase poststacks, the first non-exiting surface 22 of the first light guide plate 2 makes the first end face 31 of each the first support column 3 support the second end face 61 that is affixed on each corresponding the second support column 6 towards the second non-exiting surface 52 of the second light guide plate 5.
As shown in Fig. 3 B, when the first light guide plate 2 and the second light guide plate 5 phase poststacks, be placed on supersonic welder, with ultrasonic welding the first light guide plate 2 and the second light guide plate 5, the second violent friction of end face 61 of the first end face 31 that makes the first support column 3 and the second corresponding support column 6 and produce localized hyperthermia, the first end face 31 and the second end face 61 melt and are bonded into one, in order to keep the gap between the first light guide plate 2 and the second light guide plate 5.In the present embodiment, after the first support column 3 and the second support column 6 are fused into one with ultrasonic, become cross-sectional sizes by original gradually-reducing shape structure identical (as shown in Fig. 3 B, the transverse section is rectangular-shaped) column structure, but the present invention is non-as limit, and the shape after its welding changes according to the difference of its original tapered configuration.
Be noted that the quantity of the first support column 3 and corresponding the second 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, can not bump to guarantee the first light guide plate 2 and the second light guide plate 5.As shown in figure 3C, the lazy weight of the first support column 3 and corresponding the second support column 6, the distortion that causes the first light guide plate 2 to occur because of own wt bumps the first light guide plate 2 and the second light guide plate 5.As shown in Fig. 3 D, quantity and the location-appropriate of the first support column 3 and corresponding the second support column 6 be not although the first light guide plate 2 because own wt deforms, bumps with the second light guide plate 5.Usually, the first support column 3 is evenly to be configured on the first light guide plate 2 and the second light guide plate 5 with corresponding the second support column 6.
as shown in Fig. 4 A, in certain embodiments, the first light guide plate 2 can be provided with a plurality of the first patterns (pattern) 25 in its first non-exiting surface 22, the second light guide plate 5 can be provided with a plurality of the second patterns (pattern) 55 in its second non-exiting surface 52, in certain embodiments, more a plurality of the first patterns 25 in the position that the first support column 3 arranges are near the periphery of the first non-exiting surface 22, more a plurality of the second patterns 55 in the position that the second support column 6 arranges are near the periphery of the second non-exiting surface 52, in other words, the first support column 3 is arranged at the outer rim of a plurality of the first patterns 25, the second support column 6 is arranged at the outer rim of a plurality of the second patterns 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, the first support column 3 of a part is arranged at the outer rim of a plurality of the first patterns 25, first support column 3 of another part can be arranged between a plurality of the first patterns 25, the second support column 6 of a part is arranged at the outer rim of a plurality of the second patterns 55, and second support column 6 of another part can be arranged between a plurality of the second patterns 55.In certain embodiments, the first support column 3 between a plurality of the first patterns 25 arranges the first pattern 25 in its first end face 31, the second support column 6 between a plurality of the second patterns 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 Fig. 4 D, in certain embodiments, the first support column 3 and the first pattern 25 are identical patterning, the second support column 6 and the second pattern 55 are identical patterning, and these patternings have certain height, make the patterning of the first light guide plate 2 and the patterning of the second light guide plate 5 be bonded into one and become a plurality of support columns via the ultrasonic welding.
Above stated specification is only for example about the setting position of support column and pattern, the present invention is non-as limit, the present invention can only arrange a plurality of the first patterns 25 and support column 3 is not set on the first light guide plate 2, or only a plurality of the second patterns 55 are set on 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 further arrange patterning at its exiting surface.
As shown in Fig. 4 E, in certain embodiments, the first light guide plate 2 forms a plurality of the first support columns 3 in the first non-exiting surface 22 in integrally formed mode, and is provided with a plurality of the first patterns 25 in the first non-exiting surface 22.When the first light guide plate 2 and the second light guide plate 5 phase poststacks, be placed on supersonic welder, with ultrasonic welding the first light guide plate 2 and the second light guide plate 5, make the second violent friction of non-exiting surface 52 of the first end face 31 of the first support column 3 and the second light guide plate 5 and produce localized hyperthermia, making the first end face 31 be bonded into one with the second non-exiting surface 52 thawings.As shown in Fig. 4 F, in certain embodiments, the first support column 3 is the patterning identical with the first pattern 25, makes the patterning of the first light guide plate 2 and the second light guide plate 5 be bonded into one via the ultrasonic welding.
Fig. 5 A, Fig. 5 B and Fig. 5 C are the second embodiment 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 Fig. 5 A, reflecting element 7 can be pre-aligned on 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 second non-exiting surface 52 of the first non-exiting surface 22 of the first light guide plate 2 and the second light guide plate 5, and, as shown in Fig. 5 A and Fig. 5 B, the reflecting element 7 on the second light guide plate 5 does not cover the second support column 6 of outer rim, does not therefore affect the fusion between a plurality of the first support columns 3 and a plurality of the 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 respectively or be adjacent and do not contact.At this, reflecting element 7 can first be reserved position, support column hole or configuration design breach, interferes with the first support column 3 or the second support column 6 avoiding.
As shown in Fig. 5 C, in certain embodiments, the first support column 3 is patterning, the 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 makes the patterning of the first light guide plate 2 and the patterning of the second light guide plate 5 be bonded into one via the ultrasonic welding.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 that makes the first non-exiting surface 22 of the first light guide plate 2 be attached at surface 71, the second light guide plate 5 of reflecting element 7 is attached at the surface 72 of reflecting element 7.
Aforementioned explanation about reflecting element 7 is only for for example, and the present invention is non-as limit, and the material that those of ordinary skills can have reflective character coats that on light guide plate, formed reflector layer substitutes.
As shown in Fig. 5 D, be the light of the present invention schematic diagram of advancing.The first support column 3 and the second support column 6 are kept the clearance D between the first light guide plate 2 and the second light guide plate 5, bump in vibration-testing or the process of transporting to avoid the first light guide plate 2 and the second light guide plate 5.The first pattern 25 and 55, the second pattern are direct of travel and the paths that changes light, to reach the specification of optics uniformity coefficient, for example work as light and do 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; For example work as light and meet the first pattern 25(or the second pattern 55), its direct of travel can change, as shown in direct of travel A.
As shown in Figure 6A, when the first support column 3 is arranged at the outer rim of the first light guide plate 2 two ends and the second support column 6 when being arranged at the outer rim of the second light guide plate 5 two ends, the Luminance Distribution of double layer light-guiding plate structure 1 is as shown in Fig. 6 B, wherein, X-direction represents the 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, wherein the darker line of color is the cross section of horizontal direction, and the more shallow line of color is the cross section of vertical direction.As shown in Fig. 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 its Luminance Distribution is as shown in Fig. 7 B, and Fig. 7 C is the schematic cross-section of Fig. 7 B.As shown in Fig. 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 its Luminance Distribution is as shown in Fig. 8 B, and Fig. 8 C is the schematic cross-section of Fig. 8 B.By aforementioned graphic know find out, no matter arrange the first support column 3, the second support column 6, the first pattern 25 and the second pattern 55 in where the position, 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, the second support column 6, the first pattern 25 and the second pattern 55 can't affect the optics taste.at this, the first support column 3, the diameter of the second support column 6 can be respectively the first pattern 25, (meaning i.e. the first support column 3 for a times 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, the first support column 3, the second support column 6 namely can not affect the optics taste, wherein, the 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, for example: the first pattern 25, the diameter of the second pattern 55 is 50um, the 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, double-deck backlight modular structure comprises in the first example of the present invention: double layer light-guiding plate structure 1, framework 8, light source module 9.
Figure 10 is the embodiment that the manufacture method of 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 a plurality of the first support columns 3, a plurality of the first support columns 3 are arranged on the first light guide plate 2.
The first light guide plate 2 has the first relative exiting surface 21 and the first non-exiting surface 22.A plurality of the first support columns 3 form on the first non-exiting surface 22 of the first light guide plate 2 in integrally formed mode, and, the first support column 3 has the first end face 31, the first support column 3 is by connecting the first non-exiting surface 22 places to the direction of the first end face 31 gradually-reducing shape linearly, its structure and position are not repeated at this as previously mentioned.
In this step, a plurality of the first patterns 25 can further be set on the first non-exiting surface 22 of the first light guide plate 2, or the first pattern 25 can further be set 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 a plurality of the second support columns 6, a plurality of second supports 5 posts is arranged on the second light guide plate 6.
In this step, the second light guide plate 5 is made with ejection formation or hot-forming (thermoforming).The second light guide plate 5 has the second relative exiting surface 51 and the second non-exiting surface 52.A plurality of the second support columns 6 form on the second non-exiting surface 52 of the second light guide plate 5 in integrally formed mode, and, the second support column 6 has the second end face 61, the second support column 6 is by connecting the second non-exiting surface 52 places to the direction of the second end face 61 gradually-reducing shape linearly, its structure and position are not repeated at this as previously mentioned.
In this step, a plurality of the first patterns 55 can further be set on the second non-exiting surface 52 of the second light guide plate 5, or the first pattern 25 can further be set 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.
After step S2, also comprise: cremasteric reflex part 7 is positioned on 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, the second support column 6 can be a times to five times of diameter of the first pattern 25, the second pattern 55, wherein, the diameter of the first support column 3, the second support column 6 preferably can be three times of the diameter that is less than or equal to the first pattern 25, the second pattern 55, it is not repeated at this as previously mentioned.
Step S3: superimposed the first light guide plate 2 and the second light guide plate 5 make each second support column 6 be connected to the first corresponding support column 3.
The first light guide plate 2 and the second light guide plate 5 phase poststacks, the first non-exiting surface 22 of the first light guide plate 2 makes the first end face 31 of each the first support column 3 support the second end face 61 that is affixed on each corresponding the second support column 6 towards the second non-exiting surface 52 of the second light guide plate 5.
If after step S2, reflecting element 7 is positioned on the second light guide plate 5, in this step, in the first light guide plate 2 and the second light guide plate 5 phase poststacks, reflecting element 7 can be between the first light guide plate 2 and the second light guide plate 5.As previously mentioned, the first support column 3 is different from structure, the position of the second support column 6, the two side faces of reflecting element 7 can be attached at respectively the first non-exiting surface 22 and the second non-exiting surface 52, or be the two side faces of reflecting element 7 can be respectively and the first non-exiting surface 22, the second non-exiting surface 52 between at a distance of a spacing, be not repeated at this.
Step S4: ultrasonic welding the first light guide plate 2 and the second light guide plate 5 make each second support column 6 be bonded into one with corresponding the first support column 3.
The first light guide plate 2 and the second light guide plate 5 that are superimposed are placed on supersonic welder, with ultrasonic welding the first light guide plate 2 and the second light guide plate 5, the second violent friction of end face 61 of the first end face 31 that makes the first support column 3 and the second corresponding support column 6 and produce localized hyperthermia makes the first end face 31 be bonded into one with the second end face 61 thawings.As previously mentioned, along with the first support column 3 is different from structure, the position of the second support column 6, the structure after it engages is also different, is not repeated at this.
In sum, according to light conducting plate structure of the present invention and manufacture method thereof, can the light guide plate of bilayer is integrated, collide with each other to avoid it, and increase bulk strength by integrated structure.In addition, the first light guide plate and the second light guide plate can distinctly be adjusted optical quality, more easily reach optics taste requirement.
Although the present invention discloses as above with aforesaid embodiment; so it is not to limit the present invention; any those of ordinary skills; without departing from the spirit and scope of the present invention; when can do a little change and retouching, therefore scope of patent protection of the present invention must be looked the scope that the appended claim of this instructions defines and is as the criterion.
Claims (14)
1. double layer light-guiding plate structure comprises:
One first light guide plate comprises one first relative exiting surface and one first non-exiting surface;
A plurality of the first support columns are positioned at this first non-exiting surface; And
One second light guide plate comprises one second relative exiting surface and one second non-exiting surface, and this second non-exiting surface is towards this first non-exiting surface,
Wherein each this first support column is resisted against this second light guide plate, makes each this first support column and this second light guide plate be bonded into one via the ultrasonic welding, in order to keep the gap between this first light guide plate and this second light guide plate.
2. double layer light-guiding plate structure as claimed in claim 1, wherein this first light guide plate also comprises a plurality of the first patterns, is positioned at this first non-exiting surface, and this second light guide plate also comprises a plurality of the second patterns, is positioned at this second non-exiting surface.
3. double layer light-guiding plate structure as claimed in claim 2, wherein this second light guide plate also comprises a plurality of the second support columns, is positioned at this second non-exiting surface.
4. double layer light-guiding plate structure as claimed in claim 3, more described a plurality of the first patterns of wherein said a plurality of the first support column are near the periphery of this first non-exiting surface, and more described a plurality of the second patterns of described a plurality of the second support columns are near the periphery of this second non-exiting surface.
5. double layer light-guiding plate structure as claimed in claim 3, wherein said a plurality of the first support columns are between described a plurality of the first patterns, and described a plurality of the second support columns are between described a plurality of the second patterns.
6. double layer light-guiding plate structure as claimed in claim 2, the diameter of wherein said a plurality of the first support columns are less than or equal to five times of diameter of described a plurality of the first patterns.
7. double layer light-guiding plate structure as claimed in claim 1 also comprises: a reflecting element is positioned on this second light guide plate and between this first non-exiting surface and this second non-exiting surface.
8. double layer light-guiding plate structure as claimed in claim 7, wherein this first non-exiting surface and this second non-exiting surface are attached at respectively the surface of this reflecting element.
9. the manufacture method of a double layer light-guiding plate structure comprises:
Penetrate one first light guide plate and a plurality of the first support column, described a plurality of the first support columns are arranged on this first light guide plate;
Penetrate or hot pressing one second light guide plate;
Superimposed this first light guide plate 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 bonded into one.
10. the manufacture method of double layer light-guiding plate structure as claimed in claim 9, wherein in the step of ejaculation or this second light guide plate of hot pressing, comprise: a plurality of the second support columns are set on this second light guide plate, in the step of superimposed this first light guide plate and this second light guide plate, each this second support column is connected to this corresponding first support column.
11. the manufacture method of double layer light-guiding plate structure as claimed in claim 10, wherein in the step that penetrates this first light guide plate and described a plurality of the first support columns, comprise: a plurality of the first patterns are set on the one side of this first light guide plate, in the step that penetrates this second light guide plate and described a plurality of the second support columns, comprise: a plurality of the second patterns are set on the one side of this second light guide plate.
12. the manufacture method of double layer light-guiding plate structure as claimed in claim 9 wherein after the step that penetrates this first light guide plate and described a plurality of the first support columns, also comprises: a reflecting element is provided, is positioned on this second light guide plate.
13. the manufacture method of double layer light-guiding plate structure as claimed in claim 12 wherein in the step of superimposed this first light guide plate and this second light guide plate, is arranged at this reflecting element between this first light guide plate and this second light guide plate.
14. the backlight module with double layer light guide board comprises:
Double layer light-guiding plate structure as described in claim 1-8 any one;
One framework is taken in 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-guiding plate structure throw 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 true CN103116201A (en) | 2013-05-22 |
| CN103116201B 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) |
Cited By (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 |
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| EP0958571A1 (en) * | 1997-11-29 | 1999-11-24 | Koninklijke Philips Electronics N.V. | Display device comprising a light guide |
| CN1666122A (en) * | 2002-07-08 | 2005-09-07 | 皇家飞利浦电子股份有限公司 | Foil display with two light guides |
| WO2012082549A2 (en) * | 2010-12-17 | 2012-06-21 | 3M Innovative Properties Company | Light device |
| CN102540568A (en) * | 2011-01-03 | 2012-07-04 | 乐金显示有限公司 | Two-way liquid crystal display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0958571A1 (en) * | 1997-11-29 | 1999-11-24 | Koninklijke Philips Electronics N.V. | Display device comprising a light guide |
| CN1666122A (en) * | 2002-07-08 | 2005-09-07 | 皇家飞利浦电子股份有限公司 | Foil display with two light guides |
| WO2012082549A2 (en) * | 2010-12-17 | 2012-06-21 | 3M Innovative Properties Company | Light device |
| CN102540568A (en) * | 2011-01-03 | 2012-07-04 | 乐金显示有限公司 | Two-way liquid crystal display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103116201B (en) | 2015-04-08 |
| TW201416731A (en) | 2014-05-01 |
| TWI489157B (en) | 2015-06-21 |
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