CN101963308B - Combined optical device, manufacturing method thereof and display device - Google Patents
Combined optical device, manufacturing method thereof and display device Download PDFInfo
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- CN101963308B CN101963308B CN2009101576281A CN200910157628A CN101963308B CN 101963308 B CN101963308 B CN 101963308B CN 2009101576281 A CN2009101576281 A CN 2009101576281A CN 200910157628 A CN200910157628 A CN 200910157628A CN 101963308 B CN101963308 B CN 101963308B
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Abstract
The invention discloses a combined optical device, which belongs to the optical field. The combined optical device comprises a plurality of optical components and a plurality of light source devices, wherein each optical component comprises two corresponding surfaces, two corresponding first side faces, two corresponding second side faces, and corresponding third side face and fourth side face; one of the two surfaces is an emergent face; the third side face and the fourth side face are provided with an accommodating space; the third side face is adjacent to the fourth side face of another optical component; and the light source devices are positioned in the accommodating spaces respectively. When the third side face and the fourth side face receive the light energy projected by the light source devices, the light energy is transmitted to the first side faces, the second side faces and the fourth side faces and is output by the emergent face through the optical components. The combined optical device of the invention can eliminate the dark band phenomenon, improve the display effect of a liquid crystal display and brings convenience to users.
Description
Technical Field
The invention relates to the field of optics, in particular to a combined optical device, a manufacturing method thereof and a display.
Background
The lcd needs the back light module to provide the backlight source for operation, and the currently common edge light type backlight module has a light and thin characteristic, so that it has a certain occupancy in the displays sold in the market. US20070247871a1 discloses an edge-lit backlight module that uses light energy generated by a plurality of Light Emitting Diodes (LEDs) on the side of a light guide plate to provide a backlight source for a liquid crystal display.
However, the conventional edge-type backlight module using LEDs includes a plurality of LED lamps, so that a so-called dark band phenomenon occurs. Referring to fig. 1, fig. 1 is a schematic diagram illustrating a dark band phenomenon generated by an edge-lit backlight module using LEDs. The so-called dark band phenomenon is that a dark area is generated between two adjacent LED lamps.
In the process of implementing the invention, the inventor finds that the prior art has at least the following problems:
the brightness uniformity of the edge-lit backlight module will be degraded between bright and dark, which affects the display effect of the lcd. Therefore, it is an object of the present invention to eliminate the effect of the dark band phenomenon and improve the display effect of the lcd.
Disclosure of Invention
In order to improve the influence of dark band phenomenon of the conventional edge-lit backlight module and make it have higher luminance uniformity, thereby making the LCD have better display effect,
the embodiment of the invention provides a combined optical device, which adopts the following technical scheme:
the embodiment of the invention discloses a combined optical device, which comprises: the light source device comprises a plurality of optical components, a plurality of light source devices, a light-emitting surface and a reflecting surface. Each optical component comprises two corresponding surfaces, two corresponding first side surfaces, two corresponding second side surfaces, a third side surface and a fourth side surface, wherein at least one surface is connected with the first side surface, the second side surface, the third side surface and the fourth side surface. The length of the third side surface is smaller than the length of the first side surface and the length of the second side surface respectively, and the length of the fourth side surface is also smaller than the length of the first side surface and the length of the second side surface respectively. At least one of the third side surface and the fourth side surface is provided with an accommodating space, and the third side surface is abutted against the fourth side surface of the other optical component. Each light source device is positioned in the accommodating space. The light-emitting surface is located on one surface corresponding to the two surfaces, and the reflecting surface is located on the other surface corresponding to the two surfaces. Therefore, when the light energy projected by the light source device is received by at least one of the third side surface and the fourth side surface, the light energy is transmitted to the first side surface, the second side surface, the third side surface and the fourth side surface through the reflecting surface of the optical assembly, and the light energy is output from the light-emitting surface.
To achieve the above object, an embodiment of the present invention discloses another combined optical device, including: the light source device comprises a plurality of optical components, a plurality of light source devices, a light-emitting surface and a reflecting surface. Each optical component comprises two corresponding surfaces, two corresponding first side surfaces, two corresponding second side surfaces, a third side surface, a fourth side surface, a fifth side surface and a sixth side surface, wherein at least one surface is connected with the first side surface, the second side surface, the third side surface, the fourth side surface, the fifth side surface and the sixth side surface. The length of the third side surface is smaller than the length of the first side surface and the length of the second side surface, the length of the fourth side surface is also smaller than the length of the first side surface and the length of the second side surface, the length of the fifth side surface is smaller than the length of the first side surface and the length of the second side surface, and the length of the sixth side surface is smaller than the length of the first side surface and the length of the second side surface. At least one of the third side surface and the fourth side surface is provided with an accommodating space, the third side surface is adjacent to the fourth side surface of the other optical assembly, at least one of the fifth side surface and the sixth side surface is provided with an accommodating space, and the fifth side surface is adjacent to the sixth side surface of the other optical assembly. Each light source device is positioned in the accommodating space. The light-emitting surface is located on one surface corresponding to the two surfaces, and the reflecting surface is located on the other surface corresponding to the two surfaces. Therefore, when the light energy projected by the light source device is received by at least one of the third side, the fourth side, the fifth side and the sixth side, the light energy is transmitted to the first side, the second side, the fourth side, the fifth side and the sixth side through the reflection surface of the optical assembly, and the light energy is output from the light-emitting surface.
The combined optical device as described above, wherein the at least one side surface or the reflecting surface has a plurality of micro-structures, and the micro-structures may be of a convex type or a concave type.
The combined optical device as described above, wherein the plurality of optical elements are arranged in a number of m in a first direction and in a number of n in a second direction, and the first direction and the second direction are perpendicular to each other, m and n are integers, and m: n may be 16: 9 or 16: 10.
The combined optical device as described above, wherein the third side connects one of the two corresponding surfaces to form a first angle; the fourth side surface is connected with one surface of the two corresponding surfaces to form a second angle.
To achieve the above object, an embodiment of the present invention discloses a display using the above combined optical device, including: a combined optical device, an optical diffusion film and a liquid crystal display panel. The combined optical device comprises a plurality of optical components, a plurality of light source devices, a light-emitting surface and a reflecting surface. Each optical component comprises two corresponding surfaces, two corresponding first side surfaces, two corresponding second side surfaces, a third side surface and a fourth side surface, wherein at least one surface is mutually connected with the first side surface, the second side surface, the third side surface and the fourth side surface. The length of the third side surface is smaller than the length of the first side surface and the length of the second side surface respectively, and the length of the fourth side surface is also smaller than the length of the first side surface and the length of the second side surface respectively. At least one of the third side surface and the fourth side surface is provided with an accommodating space, and the third side surface is abutted against the fourth side surface of the other optical component. Each light source device is positioned in the accommodating space. The light-emitting surface is located on one surface corresponding to the two surfaces, and the reflecting surface is located on the other surface corresponding to the two surfaces. Therefore, when the light energy projected by the light source device is received by at least one of the third side surface and the fourth side surface, the light energy is transmitted to the first side surface, the second side surface, the third side surface and the fourth side surface through the reflecting surface of the optical assembly, and the light energy is output from the light-emitting surface. The optical diffusion film is arranged above the light-emitting surface and used for receiving the light energy projected by the light-emitting surface to form an optical path. The liquid crystal display panel is arranged above the optical diffusion film and used for receiving the optical path so as to display a preset picture.
To achieve the above object, an embodiment of the present invention discloses a method for manufacturing an injection molding of a combined optical device, including: providing a plastic, a mold with a preset shape and a plurality of light source devices; then, the plastic is filled into the mold with the predetermined shape by applying pressure to form a plurality of optical components, each optical component comprises two corresponding surfaces, two corresponding first side surfaces, two corresponding second side surfaces, a third side surface and a fourth side surface, at least one of the surfaces is connected with the first side surface, the second side surface, the third side surface and the fourth side surface, the length of the third side surface is smaller than the length of the first side surface and the length of the second side surface respectively, the length of the fourth side surface is smaller than the length of the first side surface and the length of the second side surface respectively, and at least one of the third side surface and the fourth side surface is provided with an accommodating space. Next, the third side is abutted against the fourth side of another optical component. Finally, a light source device is placed in each containing space, and a combined optical device can be manufactured.
Has the advantages that:
therefore, the combined optical device provided by the embodiment of the invention can eliminate the dark band phenomenon, improve the display effect of the liquid crystal display and bring convenience to users.
Drawings
For a person skilled in the art to further understand the features and technical content of the present invention, refer to the following detailed description and drawings of the embodiments of the present invention, which are provided for illustration purposes only and not for limiting the present invention.
FIG. 1 is a schematic diagram illustrating a dark band phenomenon generated by an edge-lit backlight module using LEDs according to the prior art;
FIG. 2A is a schematic diagram of an optical assembly of a combined optical device according to embodiment 1 of the present invention;
FIG. 2B is a schematic view of a combined optical device according to embodiment 1 of the present invention;
FIG. 2C is a schematic diagram of an optical assembly of the combined optical device provided in embodiment 2 of the present invention;
FIG. 2D is a schematic diagram of an optical assembly of a combined optical device according to embodiment 3 of the present invention;
FIG. 2E is a schematic diagram of an optical assembly of a combined optical device according to embodiment 4 of the present invention;
FIG. 3A is a schematic diagram of an optical assembly of a combined optical device according to embodiment 5 of the present invention;
FIG. 3B is a schematic view of a combined optical device according to embodiment 5 of the present invention;
FIG. 4 is a schematic diagram of an optical assembly of a combined optical device provided in embodiment 6 of the present invention;
FIG. 5A is a schematic diagram of an optical assembly of a combined optical device according to embodiment 7 of the present invention;
FIG. 5B is a schematic view of a combined optical device according to embodiment 7 of the present invention;
FIG. 6 is a schematic diagram of an optical assembly of a combined optical device provided in embodiment 8 of the present invention;
FIG. 7 is a schematic view of a display of a combined optical device provided by the present invention;
fig. 8 is a schematic diagram of a display effect generated by the combined optical device provided in embodiment 1 of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. 5, 7: a combined optical device;
11. 21, 31, 41, 51, 61, 71, 81: an optical component;
11A, 21A, 31A, 41A, 51A: a light-emitting surface;
11B, 21B, 31B, 41B, 51B: a reflective surface;
111. 211, 311, 411, 511: a first side surface;
112. 212, 312, 412, 512: a second side surface;
113. 213, 313, 413, 513, 613, 713, 813: a third side;
114. 214, 314, 414, 514, 614, 714, 814: a fourth side;
515. 615, 715 and 815: a fifth side surface;
516. 616, 716, 816: a sixth side;
2131. 3131, 4131: a microstructure;
117. 517 and 717: an accommodating space;
θ 2: a second angle;
phi 3: a third angle;
phi 4: a fourth angle;
12. 52, 72: a light source device;
9: a display;
91: a reflective plate;
92: an optical diffusion film;
93: a liquid crystal display panel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 2A is a schematic view of an optical element of a combined optical device according to embodiment 1 of the present invention, please refer to fig. 2A, wherein the optical element 11 includes: the light-emitting surface 11A, the reflecting surface 11B, the two first side surfaces 111, the two second side surfaces 112, the third side surface 113, and the fourth side surface 114.
The light emitting surface 11A and the reflecting surface 11B are connected to the first side surface 111, the second side surface 112, the third side surface 113 and the fourth side surface 114. In addition, the side length of the third side 113 is smaller than the side length of the first side 111 and the side length of the second side 112; the side length of the fourth side 114 is also smaller than the side length of the first side 111 and the side length of the second side 112; the third side 113 forms a first angle θ 1 with the reflective surface 11B, and the fourth side 114 also forms a second angle θ 2 with the reflective surface 11B.
To improve the conventional dark band phenomenon, the above optical components may be combined. Referring to fig. 2A and fig. 2B simultaneously, fig. 2B is a schematic view of a combined optical device according to embodiment 1 of the present invention. Fig. 2B shows a combined optical device 1, where the combined optical device 1 includes a plurality of optical components 11, and a receiving space 117 is adjacent to a third side 113 of each optical component 11, a receiving space 117 is adjacent to a fourth side 114, and the third side 113 is adjacent to the fourth side 114 of another optical component 11. The light source device 12 is disposed in each of the accommodating spaces 117, so that light generated by the light source device 12 enters from the third side surface 113, is reflected by the reflection surface 11B, is transmitted to the first side surface 111, the second side surface 112 and the fourth side surface 114 inside the optical assembly 11, and is finally output from the light emitting surface 11A of the optical assembly 11. In addition, the light source devices 12 are all shielded by the light emitting surface 11A of the optical assembly 11, so that the light emitted by the light source devices 12 needs to enter the optical assembly 11 and then be output by the light emitting surface 11A. In order to make the light energy incident on the optical assembly 11 from the third side 113 and reduce the light energy loss, the third side 113 may be a mirror structure, which is not limited in the embodiment of the present invention. In the present embodiment, the light source device 12 is a Light Emitting Diode (LED).
In the combined optical device 1 shown in the present figure, the plurality of optical elements 11 are arranged in m number in the first direction and in n number in the second direction, and the first direction and the second direction are perpendicular to each other. As shown in fig. 2B, the first direction is a horizontal direction, the second direction is a vertical direction, m is 4, and n is 3; however, one skilled in the art can design the ratio of m to n of the combined optical device 1 to be m: n is 16: 10 or 16: 9, and the embodiment of the present invention is not limited thereto. In addition, optical simulation shows that the degree range of the first angle θ 1 or the second angle θ 2 of the optical assembly 11 is 90-180 degrees, and the optimal degree range is 162.5-178.5 degrees, in which the loss of light energy incident from the third side 113 of the light source device 12 can be reduced.
In summary, the combined optical device 1 provided by the embodiment of the present invention is found to greatly improve the conventional dark band phenomenon through the simulation test of the optical display effect. Fig. 8 is a schematic diagram of a display effect generated by the combined optical device of embodiment 1, and as shown in fig. 8, the dark band phenomenon disappears to generate a uniform light emitting effect, so that the combined optical device 1 of the embodiment of the invention greatly improves the uniformity of luminance. Fig. 2C is a schematic view of an optical element of a combined optical device according to embodiment 2 of the present invention, and referring to fig. 2C, an optical element 21 of the present embodiment includes: two first sides 211, two second sides 212, a third side 213, a fourth side 214, and a reflection surface 21B. Here, the optical assembly 21 shown in the present figure has a structure similar to that of the optical assembly 11 of fig. 2A. As shown in fig. 2C, the third side 213 of the optical assembly 21 of the present embodiment has a plurality of micro-structures 2131, and the micro-structures 2131 are continuous saw-tooth structures.
Fig. 2D is a schematic view of an optical element of a combined optical device according to embodiment 3 of the present invention, and referring to fig. 2D, an optical element 31 of the present embodiment includes: two first sides 311, two second sides 312, a third side 313, a fourth side 314, and a reflection surface 31B. The optical assembly 31 shown in this figure is similar in structure to the optical assembly 11 of fig. 2A. As shown in fig. 2D, the optical assembly 31 of the present embodiment has a plurality of micro-structures 3131 on the third side 313, and the micro-structures 3131 are a plurality of convex structures.
Fig. 2E is a schematic view of an optical assembly of the combined optical device according to embodiment 4 of the present invention, and fig. 2E is shown. The optical component 41 of the present embodiment includes: two first sides 411, two second sides 412, a third side 413, a fourth side 414, and a reflection surface 41B. The optical assembly 41 shown in this figure is similar in structure to the optical assembly 11 of fig. 2A. As shown in fig. 2E, the third side 413 of the optical assembly 41 of the present embodiment has a plurality of micro-structures 4131, and the micro-structures 4131 are a plurality of concave structures.
In addition, a person skilled in the art may further dispose the microstructure on any one of the first side surface, the second side surface, and the fourth side surface, and further dispose a plurality of microstructures on the reflection surface, so as to uniformly reflect the light emitted by the light source device to the light emitting surface.
Fig. 3A is a schematic view of an optical assembly of a combined optical device according to embodiment 5 of the present invention, and fig. 3A is shown. The optical assembly 51 includes: there are corresponding light-emitting surface 51A, reflecting surface 51B, two corresponding first side surfaces 511, two corresponding second side surfaces 512, a corresponding third side surface 513, a corresponding fourth side surface 514, and a corresponding fifth side surface 515 and a sixth side surface 516. In the embodiment of fig. 3A, third side 513, fourth side 514, fifth side 515, and sixth side 516 are triangular in cross-section. The reflecting surface 51B is connected to the first side 511, the second side 512, the third side 513, the fourth side 514, the fifth side 515, and the sixth side 516. In addition, the side lengths of the third side 513, the fourth side 514, the fifth side 515, and the sixth side 516 are all smaller than the side length of the first side 511 or the side length of the second side 512. In addition, the third side 513 forms a first angle Φ 1 with the reflective surface 51B, the fourth side 514 forms a second angle (not labeled) with the reflective surface 51B, the fifth side 515 forms a third angle Φ 3 with the reflective surface 51B, and the sixth side 516 forms a fourth angle Φ 4 with the reflective surface 51B.
Fig. 3B is a schematic view of a combined optical device according to embodiment 5 of the present invention, please refer to fig. 3A and fig. 3B. Fig. 3B shows a combined optical device 5, where the combined optical device 5 includes a plurality of optical elements 51 as shown in fig. 3A, a containing space 517 is adjacent to each of the third side 513, the fourth side 514, the fifth side 515 and the sixth side 516 of each optical element 51, the third side 513 abuts against the fourth side 514 of another optical element 51, and the fifth side 515 abuts against the sixth side 516 of another optical element 51. The light source device 52 is disposed in each of the accommodating spaces 517, so that light output by the light source device 52 enters the optical assembly 51 from the third side 513, the fourth side 514, the fifth side 515, and the sixth side 516, and is reflected by the reflecting surface 51B, so that the light is transmitted to the other sides inside the optical assembly 51. In addition, the light source devices 52 are all shielded by the light exit surface 51A of the optical assembly 51, so that the light emitted by the light source devices 52 needs to enter the optical assembly 51 and then be output by the light exit surface 51A. In the combined optical device 5, the plurality of optical elements 51 are arranged in 4 rows in the horizontal direction and 3 rows in the vertical direction. In addition, optical simulation shows that the first angle Φ 1, the second angle (not labeled in the figure), the third angle Φ 3, and the fourth angle Φ 4 of the optical assembly 51 range from 90 degrees to 180 degrees, and the optimal range of degrees is from 162.5 degrees to 178.5 degrees, so that the light energy loss of the light source device 52 incident from the third side 513 or the fourth side 514 can be reduced.
In addition, one of ordinary skill in the art may design the triangular cross-section of the third side, the fourth side, the fifth side, and the sixth side in fig. 3A into other shapes, which is not limited by the embodiment of the present invention.
Referring to fig. 4, 5A and 6, fig. 4 is a schematic diagram of an optical element of a combined optical device provided in embodiment 6 of the present invention, fig. 5A is a schematic diagram of an optical element of a combined optical device provided in embodiment 7 of the present invention, and fig. 6 is a schematic diagram of an optical element of a combined optical device provided in embodiment 8 of the present invention. The cross section formed by the third side 613, the fourth side 614, the fifth side 615 and the sixth side 616 of the optical component 61 shown in fig. 4 is a quadrangle; the cross-section of the third side 713, the fourth side 714, the fifth side 715 and the sixth side 716 of the optical element 71 shown in fig. 5A is arc-shaped; the cross-section of the third side 813, the fourth side 814, the fifth side 815 and the sixth side 816 of the optical element 81 shown in FIG. 6 is cylindrical. In addition, fig. 5B is a schematic view of the combined optical device provided in embodiment 7, please refer to fig. 5B again, and a plurality of optical elements 71 shown in fig. 5A are combined to form the combined optical device 7 shown in fig. 5B. In the combined optical device 7, an accommodating space 717 is adjacent to each of the third side 713, the fourth side 714, the fifth side 715 and the sixth side 716 of each optical component 71, the third side 713 abuts against the fourth side 714 of another optical component 71, and the fifth side 715 abuts against the sixth side 716 of another optical component 71. The light source device 72 is disposed in each of the accommodating spaces 717, such that light output from the light source device 72 is incident into the optical assembly 71 from the third side 713, the fourth side 714, the fifth side 715, and the sixth side 716, respectively.
Therefore, the combined optical device using the optical assembly in the embodiment of the invention can eliminate the dark band phenomenon generated by the edge type backlight module using the traditional LED, improve the luminance uniformity of the edge type backlight module and improve the display effect of the liquid crystal display.
In order to enable those skilled in the art to understand the manufacturing method of the present invention, several methods for manufacturing the combined optical device of the embodiment of FIG. 2B are further disclosed.
Firstly, the injection molding manufacturing method of the combined optical device comprises the following steps: a plastic, a mold with a predetermined shape and a plurality of light source devices are provided, wherein the plastic can be polymethyl methacrylate, polycarbonate, polystyrene, polyethylene or a mixture of at least any two different plastics. The predetermined shape on the mold may be a mirror structure after polishing. Next, the plastic is filled into the mold with a predetermined shape by applying pressure, thereby forming a plurality of optical elements as described in the above embodiments. Third, the third side of the optical assembly is abutted against the fourth side of another optical assembly, and a light source device is placed in each accommodating space, so that the combined optical device as shown in fig. 2B can be formed.
In addition, a hot-pressing manufacturing method of the combined optical device comprises the following steps: first, a plastic, a mold with a predetermined shape, and a plurality of light source devices are provided, wherein the plastic may be the same as the plastic used in the injection molding method, and will not be described herein again. Next, the plastic is heated by heat energy, and the mold with a predetermined shape is filled with the plastic by pressure, so as to complete the plurality of optical components according to the foregoing embodiments. And polishing and cutting the third side or the fourth side of the optical assembly. Finally, the third side of the optical component is abutted against the fourth side of another optical component, and a light source device is placed in each accommodating space, so that the combined optical device as shown in fig. 2B can be formed.
In addition, there is a Roll-to-Roll method for fabricating a combined optical device, comprising the steps of: first, plastic, a roller with a predetermined pattern, and a plurality of light source devices are provided, wherein the plastic is the same as the plastic used in the manufacturing method, and will not be described herein again. Next, the plastic material is passed through a roller with a predetermined pattern to transfer the predetermined pattern, thereby completing the plurality of optical components according to the foregoing embodiments. And polishing and cutting the third side or the fourth side of the optical assembly. Finally, the third side surface is abutted against the fourth side surface of another optical assembly, and a light source device is placed in each accommodating space, so that the combined optical device as shown in fig. 2B can be formed.
In order to make the purpose and use of the optical assembly and the combined optical device of the present invention clear to those skilled in the art, a display using the optical assembly or the combined optical device is further disclosed herein. Fig. 7 is a schematic diagram of a display of a combined optical device according to an embodiment of the present invention, referring to fig. 7, where fig. 7 shows a display 9, the display 9 includes: a reflection plate 91, a combined optical device 7, an optical diffusion film 92, and a liquid crystal display panel 93. The combined optical device 7 is the combined optical device 7 shown in fig. 5B. The reflective plate 91 is placed below the combined optics 7 and reflects light energy to the optics 7. The optical diffuser film 92 is disposed above the combined optical device 7 and is configured to receive light energy projected by the combined optical device 7 to form an optical path. The liquid crystal display panel 93 is disposed above the optical diffusion film 92, and when the optical path enters the liquid crystal display panel 93 from the optical diffusion film 92, the liquid crystal display panel 93 can display a predetermined picture.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all other equivalent changes and modifications within the spirit and scope of the present invention should be included in the present invention.
Claims (10)
1. A combined optical device, comprising: the light source device comprises a plurality of optical components, a plurality of light source devices, a light-emitting surface and a reflecting surface; wherein,
each of the optical components includes: two corresponding surfaces, two corresponding first sides, two corresponding second sides, a third side and a fourth side, wherein at least one of the surfaces is connected with the first side, the second side, the third side and the fourth side, the length of the third side is respectively smaller than that of the first side and that of the second side, the length of the fourth side is also respectively smaller than that of the first side and that of the second side, at least one of the third side and the fourth side has a containing space, and the third side is adjacent to the fourth side of another optical component;
each light source device is positioned in the accommodating space;
the light-emitting surface is positioned on one surface corresponding to the two surfaces;
the reflecting surface is positioned on the other surface corresponding to the two surfaces;
when at least one of the third side surface and the fourth side surface receives the light energy projected by the light source device, the light energy is transmitted to the first side surface, the second side surface, the third side surface and the fourth side surface through the reflecting surface of the optical assembly, and the light energy is output from the light-emitting surface.
2. A combined optical device according to claim 1, wherein the at least one side surface or the reflective surface has a plurality of microstructures.
3. A combined optical device as recited in claim 2, wherein said micro-structures are either convex or concave structures.
4. A combined optical device according to claim 1, wherein the plurality of optical elements are arranged in a number m in a first direction and in a number n in a second direction, and the first direction is orthogonal to the second direction, m: n being 16: 9 or 16: 10.
5. The combined optical device of claim 1, wherein the third side connects one of the two corresponding surfaces to form a first angle.
6. The combined optical device of claim 1, wherein the fourth side joins one of the two corresponding surfaces to form a second angle.
7. An injection molding method for manufacturing a combined optical device, the method comprising:
providing a plastic, a mold with a preset shape and a plurality of light source devices;
filling the predetermined shape mold with the plastic material by applying pressure to form a plurality of optical elements, each optical element comprising: the length of the third side surface is respectively less than that of the first side surface and that of the second side surface, the length of the fourth side surface is also respectively less than that of the first side surface and that of the second side surface, and at least one of the third side surface and the fourth side surface is provided with an accommodating space;
abutting the third side with the fourth side of another optical component;
and placing one light source device in each accommodating space.
8. A combined optical device, comprising: the light source device comprises a plurality of optical components, a plurality of light source devices, a light-emitting surface and a reflecting surface; wherein,
each of the optical components includes: two corresponding surfaces, two corresponding first side surfaces, two corresponding second side surfaces, a third side surface and a fourth side surface, a fifth side surface and a sixth side surface, wherein at least one of the surfaces is connected with the first side surface, the second side surface, the third side surface, the fourth side surface, the fifth side surface and the sixth side surface, the length of the third side surface is smaller than the length of the first side surface and the length of the second side surface respectively, the length of the fourth side surface is smaller than the length of the first side surface and the length of the second side surface respectively, the length of the fifth side surface is smaller than the length of the first side surface and the length of the second side surface respectively, and the length of the sixth side surface is smaller than the length of the first side surface and the length of the second side surface respectively, at least one of the third side and the fourth side has a receiving space, the third side is adjacent to the fourth side of another optical component, and at least one of the fifth side and the sixth side has a receiving space, the fifth side is adjacent to the sixth side of another optical component;
each light source device is positioned in the accommodating space;
the light-emitting surface is positioned on one surface corresponding to the two surfaces;
the reflecting surface is positioned on the other surface corresponding to the two surfaces;
when light energy projected by the light source device is received by at least the third side face, the fourth side face, the fifth side face and the sixth side face of the side faces, the light energy is transmitted to the first side face, the second side face, the fourth side face, the fifth side face and the sixth side face through the reflecting face of the optical assembly, and the light energy is output from the light-emitting face.
9. A combined optical device according to claim 8, wherein the at least one side surface or the reflective surface has a plurality of microstructures.
10. A display using a combined optical device, the combined optical device display comprising: the liquid crystal display comprises a plurality of optical assemblies, a plurality of light source devices, a light-emitting surface, a reflecting surface, an optical diffusion film and a liquid crystal display panel;
each of the optical components includes: two corresponding surfaces, two corresponding first sides, two corresponding second sides, a third side and a fourth side, wherein at least one of the surfaces is connected with the first side, the second side, the third side and the fourth side, the length of the third side is smaller than the length of the first side and the length of the second side, respectively, and the length of the fourth side is also smaller than the length of the first side and the length of the second side, respectively, at least one of the third side and the fourth side is provided with an accommodating space, and the third side is adjacent to the fourth side of another optical component;
each light source device is positioned in one of the accommodating spaces;
the light-emitting surface is positioned on one surface corresponding to the two surfaces;
the reflecting surface is positioned on the other surface corresponding to the two surfaces;
when at least one of the third side surface and the fourth side surface receives light energy projected by the light source device, the light energy is transmitted to the first side surface, the second side surface, the third side surface and the fourth side surface through the reflecting surface of the optical assembly, and the light energy is output from the light-emitting surface;
the optical diffusion film is arranged above the light-emitting surface and receives light energy projected by the light-emitting surface to form an optical path;
the liquid crystal display panel is arranged above the optical diffusion film, and receives the optical path so as to display a preset picture.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101576281A CN101963308B (en) | 2009-07-21 | 2009-07-21 | Combined optical device, manufacturing method thereof and display device |
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| CN2009101576281A CN101963308B (en) | 2009-07-21 | 2009-07-21 | Combined optical device, manufacturing method thereof and display device |
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| CN101963308A CN101963308A (en) | 2011-02-02 |
| CN101963308B true CN101963308B (en) | 2012-08-22 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101398148A (en) * | 2007-09-28 | 2009-04-01 | 富士迈半导体精密工业（上海）有限公司 | Area source device for LED |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101398148A (en) * | 2007-09-28 | 2009-04-01 | 富士迈半导体精密工业（上海）有限公司 | Area source device for LED |
Non-Patent Citations (1)
| Title |
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| JP特开2002-184223A 2002.06.28 |
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