TW201232122A - Backlight device with angle adjustment - Google Patents

Abstract

This invention relates to backlight device with angle adjustment, which includes a light source module, an optical member and a light guiding plate, wherein the optical member is equipped on one side of the light source and has a light-receiving surface and a light-leaving surface. The light source generates a plurality of first light rays to the optical member, and the light-receiving surface receives the plurality of first light rays according to a plurality of first optical paths synchronously. The optical member generates a plurality of second optical paths according to those first optical paths. The light-leaving surface, corresponding to the second optical paths, outputs a plurality of second light rays to the light guiding plate. Moreover, this invention can provide a multi-angle light source projected onto the light guiding plate by arranging a plurality of light sources in curved configuration on XY plane. Therefore, the backlight device of this invention can provide a backlight source of multiple view angles to simplify the optical structure of the backlight device.

Description

201232122 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a light-emitting device, and more particularly to a backlight device having an angle modulation. [Prior Art] [0002]

The viewing angle has always been an important part of the liquid crystal display technology, in addition to the use of viewing angle modulation to increase the utilization of the display after the light, in various application levels, such as the development of a wide viewing angle of the theater, or designed for privacy and privacy Narrow-view screens (ATM, mobile phones, personal office), etc., are all controlled by angle of view. Recently, the literature and patents for wide-angle switching have been gradually adapted to suit various situations. It is also apparent that the demand for this market is fast. growing up. In general, considering the use of the display, the external conditions such as the position of the user 'the number of people and the brightness of the viewing environment, etc., at this time, the viewing angle modulation technology of the display can achieve the purpose of energy saving. As shown in the first figure, in a bright environment 1 (), that is, when the light source 12 is relatively bright, the display 14 is generally provided for multiple users (eg, users 15, 16, 17) to view the 'display 14 must A high-brightness, wide-angle light field 142 is provided to provide the best visual experience for each user, that is, the visual perceptions 152, 162, and 172' are known by the visual perceptions 152, 162, and 172, and the display 14 provides the high The brightness, wide viewing angle light field 142 allows the users 15, 16, 17 of different viewing angles to simultaneously view the image displayed by the display 14. As shown in FIG. B, in a low ambient environment or a single user environment 20, that is, the brightness of the light source 22 is weak, and the display 24 only needs to provide a narrow viewing angle of the light field 242, which can satisfy a single use. User 26 needs to use, and 100103793 for a single user, although there is not much difference in visual perception 262 Form number A0101 Page 3 / Total 43 pages 1002006808-0 201232122 Different 'but the light outside the angle of view Significant savings have been made, such as visual perception of 252 and 272 'the visual perception within the perspective of the user 26, so the user 26 does not have visual perceptions 252 and 272. Today's viewing angle control technology is mainly divided into two ways: the first is to add a layer of Viewing Angle Switching (VAS) such as: TRVL (thermally retardation variable layer) liquid crystal layer; the second is to use multiple light sources and multiple layers The optical mechanism of the geometric architecture. As shown in FIG. 2A and FIG. 2B, the display device 30 includes a first polarizing plate 31, a second biasing plate 32, a liquid crystal panel 33, and a liquid crystal layer 34. The liquid crystal panel 33 is located at the first Between the polarizing plate 31 and the second polarizing plate 32: and the liquid crystal layer 34 is located between the liquid twinned panel 3.3 and the second polarizing plate 32, and uses the liquid crystal layer 34 to control the viewing angle, wherein, as in the second image As shown, the contrast of the bright and dark states is reduced, and as shown in the second B, the angle of view is controlled by reducing the light transmittance of the non-forward viewing angle (Outcome..T.ransmi ttance); Low contrast will cause grayscale inversion and color shifting' to make the image of the display device 30 difficult to recognize and read, and in the prior art, 'reducing the non-positive light intensity to lower the contrast is easier to achieve a narrow viewing angle' but except for the original Outside the liquid crystal layer of the liquid crystal panel 33, it is necessary to add more than one liquid crystal layer (for example, the above liquid crystal layer 34) for gray scale control, which causes the overall brightness of the display device 3 to be too dark. As shown in the third figure, it is an optoelectronic device 40 of an optical system with multiple light sources and a multi-layer geometry, which has a reflective sheet 41 ′ a first light source 42 , a first light guide plate 43 , a diffusion plate 44 , a second light source 45, a second light guide plate 46, a reverse mirror 47 and a liquid crystal panel 48, wherein the reflective sheet 41, the first light guide plate 43, the diffuser plate 44, the second light guide plate 46, and the reverse 100103793 1002006808-0 Form No. A0101 Page 4 of 43 201232122

The prisms 47 and the liquid crystal panel 48 are sequentially stacked, the first light source 42 is disposed on one side of the first light guide plate 43, and the second light source 45 is disposed on one side of the second light guide plate 46 by using different light sources (ie, A light source 42 and a second light source 45) correspond to different optical paths (ie, the first light 422 to the first output light 424 and the second light 452 to the second output light 454) such that the light source emits light (ie, the first output light) 424 and the output angle of the second output light 454 can be effectively controlled in a specific range 'such as an edge-lit backlight system in which two independent light sources are superimposed', and the wide-angle switching can be achieved by the difference in optical path design. When the upper light guide plate with micro-grooves is separately turned on, the backlight provides a viewing angle light field for forward viewing, and vice versa, if the lower common dot printing printed light guide plate is turned on, a wide viewing angle light field can be supplied to each viewing direction. . In addition to the fact that there is no difference in the supply of the first direction, it is obvious that the lack of such a multilayer optical structure, that is, the design of the multilayer light guide plate is likely to cause the light-emitting efficiency of the lower-layer light guide plate to be too low, which undoubtedly causes Unnecessary energy waste.

For today's society with a high awareness of environmental protection, the adjustability of the perspective is a green technology worthy of development, but there are still many shortcomings to overcome the tunability of the technology. For example, in the case of liquid crystal architecture, The gradual multi-view switching can be achieved by changing the arrangement of the liquid crystals. However, due to the characteristics of the movement of the liquid crystal molecules, it is difficult to switch the viewing angle at a high speed. In addition, generally, the liquid crystal structure needs to be matched with a direct-type backlight module to make the body The thickness of the light cannot be effectively reduced. In terms of optical efficiency, the multilayer optical structure design not only reduces the overall light extraction efficiency, but also increases the thickness of the backlight, and the wide viewing angle of the light field and the narrow viewing angle greatly overlap, so that the panel is lighted out. The utilization rate cannot be effectively improved. 100103793 In view of this, the present invention proposes an angle-modulated backlight device form number A0101, page 5 of 43 pages 1002006808-0 201232122, which improves the viewing angle switching efficiency of a conventional multi-view display device and improves light extraction efficiency. In order to improve the display efficiency of the display device. SUMMARY OF THE INVENTION [0003] The main object of the present invention is to provide a backlight device with angle modulation and a method for fabricating the same, which can effectively control a backlight device to a specific angle when outputting light by changing an optical path. Achieve the purpose of multi-directional backlighting. A secondary object of the present invention is to provide an angle modulated backlight device and a method of fabricating the same that utilizes a light source with an optical component to simplify the optical structure to reduce the structural thickness of the backlight device. Another object of the present invention is to provide an angle modulated backlight device and a method of fabricating the same that utilizes a light source in conjunction with an optical component to change an optical path to change the exit angle of the backlight. Another object of the present invention is to provide an angle modulated backlight device and a method of fabricating the same that utilizes a change in the face angle of the optical element to adjust the optical path to increase the angle of illumination of the backlight. The invention provides a backlight device with angle modulation, comprising a light source module, an optical component and a light guide plate, the optical component is disposed on one side of the light source, the light guide plate is disposed on one side of the optical component, and the optical component has a The receiving surface and a light emitting surface. The light source generates a plurality of first light rays having a plurality of first optical paths to the receiving surface of the optical member, the receiving surface receives the first light rays and is refracted, and the optical device generates a plurality of second optical paths according to the first optical paths, and the light is emitted. The surface outputs a plurality of second light rays to the light guide plate according to the second optical paths, and the light guide plate receives the second light rays, and the light guide plate correspondingly outputs the third light rays, and the second light rays and the third light rays are in different phases . Thus, by using the second light to provide a multi-directional light source, the use of the optical structure is reduced by the use of the receiving surface and the light-emitting surface to reduce the thickness of the optical structure by 100103793 Form No. A0101, Page 6 / Total 43 pages, 1002006808-0 201232122 . The present invention further provides a backlight device with an angle modulation, comprising a plurality of light sources and a light guide plate, the light guide plate being disposed on one side of the light sources. The light sources are arranged in an arc on the χγ plane, and the plurality of first rays generated by the light sources have a plurality of optical paths on the XY plane, and the light sources are disposed at positions corresponding to the optical paths, and the first rays are After being incident on the light guide plate, the light guide plate outputs a plurality of second light rays, and the second light rays have the optical paths in the XZ plane. The multi-directional light source is provided by the second light ray, and the use of the optical structure is reduced by the receiving surface and the light-emitting surface to reduce the thickness of the optical structure. In order to give the review board members a better understanding and understanding of the structural features and the efficacies of the present invention, the preferred embodiment and the detailed description are as follows: [Embodiment] [0004] The invention is a backlight device, which is a non-imaging optical system application, that is, regardless of the object and the image, and is replaced by a light source and a receiving surface. The design development of the non-imaged light surface has become mature and complicated. Among them, the optical design method of freely forming the light surface is widely used, mainly because the optical design method has a large design dimension and degree of freedom. When the light enters a two-dimensional secondary optical structure, as shown in FIG. 4A and FIG. 4B, please refer to FIG. 4A and FIG. 4B, which is a preferred embodiment of the present invention. Top view with side view. As shown in FIG. 4A, it is a plan view of the backlight device 50 of the present embodiment, as shown in FIG. 4B, which is a side view of the backlight device 50 of the present embodiment. The backlight device 50 of the present embodiment is a side 100103793 Form No. A0101 Page 7 of 43 1002006808-0 201232122 The light type backlight device comprises a light source module 52, an optical member 54 and a light guide plate 56. The optical member 54 is disposed on one side of the light source module 52, that is, the first side of the optical member 54 faces the light emitting surface of the light source module 52, and the light guide plate 56 is disposed on one of the second sides of the optical member 54. The light source module 52 of the embodiment is provided with a plurality of light sources 522. The light source module 52 can use only one light source as a light source, or add more light sources according to the use requirements, as shown in the attached one, which uses a light-emitting diode ( LED as a light source, and the light emitting diodes (LEDs) are arranged in an arc and located on one side of the optical element (Lens), and the optical element (Lens) is adjacent to the light guide plate (LGP), and the light source is made by the light source arranged in an arc shape The incident area incident on the optical element (Lens) is increased, thereby increasing the light exit angle of the backlight (as shown in Annex II). In addition, the light sources 522 of the embodiment may be arranged in an equidistant manner, for example, the light source module 52 is provided with a plurality of light sources, and the gaps of the light sources are from the optical axis L of one of the XY planes. The 5 cm is outwardly reduced to 1 cm, that is, the closer the light source is to the boundary of the light guide plate 56, the denser the gap. For example, when the plurality of light sources 522 of the present invention are arranged in an arc shape, that is, as shown in FIGS. 4C to 4F, the light source modules 52 of the backlight device 50 are disposed when the plurality of light sources 522 are disposed, the light sources 522. Arranged equidistantly or non-equidistantly. As shown in the fourth C to fourth D, the light sources 52 2 arranged equidistantly maintain an equal spacing distance D1 according to one of the optical directions of the XY plane, and the receiving surface 542 of the optical member 54 has The complex unit normal vector N1 is equidistantly spaced apart by a distance D2 according to the optical axis L. As shown in the fourth E to the fourth F, the light sources 522 arranged in a non-equal distance are spaced apart outward according to the optical axis L of one of the XY planes, such as the distances D3 and D31 of the fourth E diagram. And the receiving surface 542 of the optical member 54 has a plurality of singles 100103793 Form No. A0101 Page 8 / Total 43 pages 1002006808-0 201232122 Bit normal vector N 2 'The unit normal vectors N 2 are spaced outward according to the optical axis L The distance, such as the distance D4, D41 of the fourth F map, wherein the decreasing interval distance of the unit normal vectors N2 can be realized by increasing or decreasing the face angle of the receiving surface. The optical axis L and the unit normal vectors N1, N2 of the fourth to fourth F pictures are simplified indications for exemplification, but the present invention is not limited thereto. The first side of the optical member 54 has a receiving surface 542, and the second side of the optical member 54 has a light emitting surface 544, and the receiving surface 542 and the light emitting surface 544 may be convex or concave, but the invention is not limited thereto. For example, the optical member 54 is an optical lens, such as an unilluminated lens or other secondary optical lens, as shown in Annex 1, to simultaneously receive light and simultaneously output light, in addition to the optical member 54. It can also be an inverse dielectric structure, as shown in Annex II and Annex III. Annex 1 uses the difference in refractive index between air (Air) and lens (Lens), and the light is exposed to the light-tight medium (Lens), and then the light-tight medium (Lens) is incident on the light-diffusing medium (Air). Medium conversion, thus achieving simultaneous reception and simultaneous output, wherein the lens (Lens) is a resin (PMMA), and the light-off medium (Air) is incident on the optically dense medium (Lens) to refract light close to the normal, and the optically dense medium (Lens) Incident to the light-draining medium (Air) causes the light to refract from the normal; Annexes 2 to 3 are the air (Air) and resin (PMMA), that is, the structure of the optical member 54 to adjust the optical path is replaced by air, thus The present optically dense medium (PMMA) is incident on the optical medium (Air), and then incident on the optically dense medium (PMMA) by the optical medium (Air) to achieve synchronous reception and synchronous output. The light guide plate 56 is provided with a plurality of optical microstructures 562, and the optical microstructures 562 are located in the light guide plate 56. The optical microstructures 562 are in the form of 100103793 Form No. A0101 Page 9 of 43 pages 1002006808-0 201232122 Sexual arrangement or asymmetrical arrangement. In addition, the backlight device 50 of the embodiment further includes a reflective layer 564 disposed at the bottom of the light guide plate 56 to reflect the light guided through the bottom of the light guide plate 56. Therefore, the first light rays generated by the first light source 522 to the third light source 526 of the light source module 52 (this embodiment is exemplified by the first light rays 571, 572, and 573 emitted by the third light source 526). The first light rays are received by the optical member 54 and passed through the receiving surface 542 by the optical member 54. The optical member 54 generates a second optical path according to the first optical paths, and then the light emitting surface 544 is used according to the second optical path. Corresponding to output a plurality of second rays to further adjust the optical paths of the first rays, thereby allowing the second rays (in this embodiment, the second rays 574, 575, and 576 corresponding to the first rays 571, 572, and 573 are taken as an example ) is incident on the light guide plate 56. Referring to the attached figure, referring to FIG. 4A, when the receiving surface 542 and the light emitting surface 544 are both convex, the first rays are on a phase (which is an XY plane or an XZ plane) according to the first optics. The path is diffused, and the second light rays are cross-conducted according to the second optical paths on the phase, and the receiving surface 542 increases the face angle according to an optical axis, and the light-emitting surface decreases the face angle according to the light axis. The angle of change between the first ray and the second ray in the XY plane is 40 degrees, and the amount of change of the first ray and the second ray in the XZ plane is increased by only 10 Referring to Annexes 2 and 3, and referring to FIG. 4A together, when the receiving surface 542 and the light-emitting surface 544 are replaced by a convex surface into a concave surface, the first light rays are in a phase (which is an XY plane or an XZ). According to the diffusion of the first optical paths, the second light rays are conducted in parallel according to the second optical paths in the phase, and the receiving surface 542 of the concave surface can increase the light collecting angle, thereby increasing the light output angle, that is, the first a light according to the first The diffusion path angle learning more Form Number A0101 100 103 793 Page 10/43 Total 201 232 122 1002006808-0 large 'and outputs an angle corresponding to the second optical path is also relatively increased. The light guide plate 56 receives the second light rays according to the second optical paths, wherein the optical paths of the second light rays in the XY plane direction are exemplified by the second light rays 574, 575, and 576 shown in FIG. At the same time, as shown in FIG. 4B, the optical paths in the XZ plane direction of the second rays are exemplified by the first light ray 574, because the optical microstructures 562 are used to guide the incident light of the light guide plate 56. Up to one of the light-emitting surfaces of the backlight device 50, thereby outputting a plurality of second light rays upwards (in this embodiment, the third light ray 57 of the fourth B-picture is taken as an example), wherein the optical microstructures 562 guide the second light rays ,by

The optical monument turn 562 in this embodiment converts the second rays into orthogonal third rays.

Furthermore, the light guide plate 56 of the present embodiment has a rectangular cross section, and may be elliptical, polygonal or irregularly shaped. The optical microstructures 562 of the embodiment are V-shaped. Structures, further, as shown in FIG. 85 to FIG. 5C, the optical microstructures 562 may be a hemispherical structure, a pyramidal structure, a V-shaped or a divergent section, and these The light divergence section of the optical microstructure 562 is at 9 degrees. In addition, the light guide plate 56 may further be provided with an optical film for providing the optical microstructures 562 'and the light guide plate 56 may be provided with light. Combine particles. The material of the optical modulation element 54 is selected from PMMA, quartz, glass, pvc, pc or other light transmissive materials, and the material of the light guide plate 56 is selected from PMMA, quartz, glass, PVC, PC or other light transmissive materials. . The material of the reflective layer 564 is selected from the group consisting of Ming, silver, mercury or other materials having a reflection coefficient greater than 8%. Further, the first to third light sources 522 to 526 of the present embodiment can be further illustrated as shown in Figs. 6A and 6B. The light source 53 of the sixth figure is provided with a light-emitting element 532 and a lens 534, and the lens 534 is disposed on the light-emitting element 532. 100103793 Form No. A0101 Page 11 / 43 page 1002006808-0 201232122 Light-emitting surface, the lens of this embodiment 5 3 4 is exemplified by the light-emitting element 5 3 2 as an example. 'The light-emitting element 5 3 2 generates a first white light 533, and the lens 534 receives and amplifies the XZ plane light-emitting angle of the first white light 533' to form The first light ray 59 is outputted to the receiving surface 542 of the optical member 54. The light source 53 of the sixth drawing is provided with a light emitting element 532, a reflective seat 536 and a package 538. The light-emitting element 532 is disposed on the reflective seat 536. The package 538 covers the light-emitting element 532 and is disposed on the reflective seat 536. The reflective seat 536 reflects the first white light 533 to form a second white light 537. The package 538 conducts and outputs the first. a first light ray 59 is formed by the white light 533 and the second white light 537, and the package 538 outputs the first light rays 59 to the receiving surface 542 of the optical member 54, wherein the first white light and the second white light Different XZ plane light angles The difference between the sixth picture A and the sixth picture B is that the light source 53 of the sixth A picture is an SMD type package. The light source 53 of the sixth picture B is a bulb type package. Please refer to the seventh figure, which is a schematic diagram of multi-view vision according to another preferred embodiment of the present invention. As shown in the figure, the backlight device 50 of the present embodiment corresponds to an optoelectronic device (not shown), and provides multiple viewing angles, such as a first viewing angle 60, a second viewing angle 62, and a third viewing angle 64. The backlight device of this embodiment The plurality of first light rays 581, 582, and 583 are generated by the plurality of light sources 522, 524, and 526 of the light source module 52. The first light rays 581, 582, and 583 are synchronously received by the optical member 54 and the second light rays 584, 585 are synchronously output. 586, and simultaneously adjusting the light exit angle of the second light ray 584, 585, 586 according to the incident angle of the first light ray 581, 582, 583 to be incident on the light guide plate 56, whereby the second light ray 584, 585 is conducted by the light guide plate 56. 586 ', for the optoelectronic device to provide a corresponding visual experience for different viewing angles 〇100103793 Form No. A0101 Page 12 / Total 43 pages 1002006808-0 201232122 In addition, the light source module 52 of the present invention can control the first light source 522 The second light source 524 and the third light source 526 are turned on/off, so that the invention can adjust the opening/closing of the light source according to the needs of use. For example, the backlight device 50 is only turned on by the second light source 524 of the light source module 52 in a narrow viewing angle state, and the remaining light sources are turned off to use the photoelectric device only for the viewer of the second viewing angle 62; the backlight device 50 is only used by the light source in the wide viewing angle state. The first light source 522 and the third light source 526 of the module 52 are turned on, and the second light source 524 is turned off to

The viewers of only the first viewing angle 60 and the third viewing angle 64 use the optoelectronic device; and the backlight device 5 is in the multi-view state, and the first light source 522 and the second light source 5 are separated by the light source module 52: The source 526 is turned on for the viewer of the multi-view to use the optoelectronic device, that is, the viewer providing the first view 60, the second view 62, and the third view 64 can use the device. The backlight device 50 of the present invention extracts the light generated by the light source by the optical member 54 and the light guide plate 56, and not only provides multi-view vision, but also reduces the thickness of the optical structure, so that the backlight device 50 of the present invention is applied. The photoelectric device can be made lighter and thinner, and the light-emitting efficiency can effectively improve the light-emitting efficiency while providing a multi-view visual experience.

Please refer to the eighth drawing, which is a further view of the preferred embodiment of the present invention. As shown in the figure, the backlight assembly (four) of the present embodiment is exemplified by a plurality of light source modules 72, 73, a plurality of optical members 74, 75, and a plurality of light guide plates 76, 78, wherein the first light source module 72 includes - first The light source 722, 100103793 - the second light source 722 and the first light source 722, the second light source module 73 includes a first light source 732 - a light source 732 and a third light source 732; the first optical member 74 comprises - an optical member 742, - The optical member 744, and one of the first sides of the optical member 744 has a receiving surface 746, and the second side of the optical member 744 has a receiving surface 748; the second optical member 75 includes an optical member 752, Form No. A0101, page 13 A total of 43 pages 1002006808-0 201232122 an optical member 754, and a first side of the optical member 754 has a receiving surface 756, and a second side of the optical member 754 has a receiving surface; the first light guiding plate 76 is provided with a plurality of optical The microstructure 762 'the second light guide plate 78 is provided with a plurality of optical microstructures 782. The first light source generated by the first light source module 72 and the second light source module 73 is exemplified by the first light rays 771, 772, 773, 791, 792, and 793, and the first light passes through the first optical member 74 and the second optical The second light 774, 775, 776, 794, 795, 796 is output after the adjustment of the member 75. Since the modulation method of the first light to the second light is as shown in the previous embodiment, the present embodiment will not be described again. It can be seen from the above that the present invention is more applicable to an edge-lit backlight device of a single-plate phosphor plate or a plurality of light guide plates, thereby providing a thinned backlight device and applicable to a backlight design of a multi-light guide plate design, but the present invention Without being limited thereto, the present invention is more applicable to a direct type backlight device. As described above, the light sources of the present invention are arranged in a straight line, but the present invention is not limited thereto, and the light source of the present invention can be further arranged in an arc shape as shown in Figs. 9A and IXB. Please refer to Figures 9A and IXB, which are top and side views of another preferred embodiment of the present invention. The difference between the eighth figure and the ninth A is that the backlight device 70 of the eighth figure provides the angle-modulated outgoing light through the light source module 72 and the optical member 74, and the backlight of the ninth A is used to illuminate the light. Module 82 provides a curved array of light sources to provide angularly modulated exit light. As shown in FIG. 9A, the backlight device 80 includes a light source module 82 and a light guide plate 86. The light source module 82 includes a first light source 822, a first light source 824, a second light source 826, and a fourth light source. 828. A fifth light source 830 'The light guide plate 86 is provided with a plurality of optical microstructures 862. In addition, 100103793 Form No. A0101 Page 14 / Total 43 Page 1002006808-0 201232122 'As shown in the seventh β diagram, the bottom of the light guide plate 86 is further provided with a reflective layer δ64. The light source module 82 is provided by the first light source 822, The two light sources 824, the third light source 826, the fourth light source 828, and the fifth light source 830 are arranged in an arc shape on the pupil plane to provide multi-angle outgoing light on the pupil plane, wherein the light source module 82 is arc according to a curvature. The shape is arranged, and the curvature is inversely proportional to the light exit angle of the light source module 82, that is, the smaller the curvature, the larger the light exit angle, and conversely, the larger the curvature, the smaller the light exit angle. Therefore, the light source module 82 can receive the light emitted by the light source module 82 according to the plurality of light receiving angles, and the optical path of the light edge module g2 on the χγ plane is converted into the XZ plane. The upper optical path, therefore the light guide 86 outputs the backlight according to the complex XZ plane exit angle. In addition, the light emitted from the light source module 82 is transmitted on the XY plane, and the light emitted from the light guide plate 86 is cross-conducted on the xz plane, and the angle of the light source module 82 on the χ γ plane is opposite to the light guide plate. The angle of the exit light of 86 on the pupil plane differs by 40 degrees. Referring to the tenth drawing from the tenth drawing, it is not intended to be another preferred embodiment of the present invention. The difference between the ninth A to the ninth, the ninth and the ninth to the tenth, and the ninth to tenth, the backlight device (10) is further provided with an optical member 84 in the light source module 82. Between the light guide plates 86, the light path of the backlight device 80 is further adjusted. The optical member 84 has a __receiving surface 842 and a light-emitting surface 844. The receiving surface 842 faces the light source module 82, and the light-emitting surface 844 faces the light guide plate 86. * The optical path modulation of the optical member 84 has been disclosed in the embodiments of the fourth A and fourth B drawings. Therefore, the present embodiment will not be described again. 100103793 3 Further, as shown in the tenth-figure, it is another embodiment of the present invention, the first device 9G, wherein the light source module 92, the pre-learning member 94 and the light guide plate 1002006808-0 Dock A0101 page 15 A total of 43 pages 201232122 are integrally formed structures, wherein the optical member 94 includes a light-tight medium 942 and a light-diffusing medium 944, and the light-dissipating medium 944 is closely arranged with the light guide plate 96 to distribute the light field of the light source module 92. Diffusion, the second medium of the embodiment is exemplified by PMMA resin and air. The present invention is not limited to the light permeable medium 944, and the light permeable medium 942 may be a light transmissive resin such as PVC or PC. In summary, the present invention is an angle-modulated backlight device that receives the first light rays by the optical member and receives the first light rays according to the plurality of first optical paths by the receiving surface, and according to the plurality of light-emitting surfaces. The second optical path outputs a plurality of second light rays. Therefore, the optical path is adjusted by the optical member, so that the second light rays are incident on the light guide plate by the second optical paths for corresponding output of the light guide plate. The third light is complex and appears as a polygonal backlight. The present invention provides a multi-directional light source by the second light, and reduces the use of the optical structure by the optical member to reduce the thickness of the optical structure. Furthermore, the present invention can be arranged in an arc shape on the XY plane by a plurality of light sources, thereby replacing the optical angle modulation of the optical member on the XY plane, thereby reducing the use of the optical structure to reduce the thickness of the optical structure. While the present invention has been described in its preferred embodiments, the present invention is not intended to limit the invention, and the present invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application. BRIEF DESCRIPTION OF THE DRAWINGS [0005] The first A diagram is a schematic diagram of a conventional visual environment; the first B diagram is a schematic diagram of a conventional visual environment; 100103793 A second diagram is a schematic diagram of a conventional optoelectronic device; Form No. A0101 16B / 43 pages 1002006808-0 201232122 The second B is a schematic view of a conventional optoelectronic device; the first view is a side view of a conventional optoelectronic device; the fourth A is a top view of a preferred embodiment of the present invention; 4B is a side view of a preferred embodiment of the present invention; FIG. 4C is a schematic view of a light source arrangement according to another preferred embodiment of the present invention. FIG. 4D is another preferred embodiment of the present invention. FIG. 4 is a schematic diagram of a light source arrangement according to another preferred embodiment of the present invention; and FIG. 4F is a schematic diagram of a normal vector arrangement according to another preferred embodiment of the present invention. :::·- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A schematic view of a light guide plate of a preferred embodiment; a fifth C diagram is another comparison of the present invention The embodiment of the present invention is a schematic diagram of a light source according to another embodiment of the present invention; and the sixth diagram is a schematic diagram of a light source according to another preferred embodiment of the present invention; FIG. 8 is a plan view of another preferred embodiment of the present invention; FIG. 9 is a plan view of another preferred embodiment of the present invention; 9B is a side view of another preferred embodiment of the present invention; FIG. 10A is a plan view of another preferred embodiment of the present invention; Side view; and Figure 11 is a plan view of another preferred embodiment of the present invention. [Main component symbol description] 100103793 Form No. A0101 Page 17 of 43 1002006808-0 201232122 [0006] 10 Environment 12 Light source 14 Display 142 Light field 15 User 1 52 Visual experience 16 User 162 Visual experience 17 User 172 Visual experience 20 Environment 22 Light bulb 24 Display 242 Light field 26 User 252 Visual experience 262 Visual experience 272 Visual experience 30 Display device 31 First polarizing plate 32 Second polarizing plate 33 Liquid crystal panel 34 Liquid crystal layer 40 Photoelectric device 41 Reflecting sheet 42 First Light Source 100103793 Form No. A0101 Page 18/Total 43 Page 1002006808-0 201232122 Ο First Light First Output Light First Light Guide Plate Diffuser Plate Second Light Source Second Light Second Output Light Second Light Guide Reverse Mirror Liquid Crystal Panel backlight device light source module first light source second light source third light source light source light element first white light lens reflection seat second white light package optical member receiving surface light surface light guide plate 100103793 Form No. 1010101 Page 19 / Total 43 Page 1002006808- 0 201232122 562 Optical microstructure 564 Reflective layer 571 First light 572 a ray 573 a first ray 574 a second ray 575 a second ray 576 a second ray 581 a first ray 582 a first ray 583 a first ray 584 a second ray 585 a second ray 586 a second ray 59 a first ray 60 a first ray 62 second viewing angle 64 third viewing angle 70 backlight device 72 light source module 722 first light source 724 second light source 726 third light source 73 light source module 732 first light source 734 second light source form number A0101 100103793 page 20 / total 43 pages 1002006808-0 201232122 ❹ Third light source optics receiving surface light-emitting surface optics optics optical member light guide plate optical microstructure first light first light first light second light second light second light guide light guide light plate optical microstructure First light first light first light second light second light second light backlight device light source module 100103793 Form No. A0101 Page 21 / Total 43 pages 1002006808-0 201232122 822 First light source 824 Second light source 826 Third light source 828 fourth light source 830 fifth light source 84 optics 842 receiving surface 844 light emitting surface 86 guide The optical plate 862 reflecting layer 90 microstructure 864 92 backlight 94 light source module 942 of the optical element 944 optically dense medium optically thinner medium 96 on the light guide plate 100 103 793 22 Form Number A0101 / 43 Total 1002006808-0

Claims (1)

201232122 VII. Patent Application Range 1. A backlight device with angle modulation, comprising: a light source module, which generates a plurality of first rays, wherein the first rays are located in a first phase and have a plurality of first optical paths An optical component is disposed on one side of the light source module, the optical component has a receiving surface and a light emitting surface, and the receiving surface synchronously receives the first light rays, and the optical component is generated according to the first optical paths a plurality of second optical paths, the light-emitting surface correspondingly outputting the plurality of second light rays according to the second optical paths; and a light guide plate disposed on a second side of the light-emitting surface, the light guide plate receiving the second light rays and Correspondingly outputting the third rays, the third rays are located in a second phase. 2. The backlight device of claim 1, wherein the light source module comprises a plurality of light sources, the light sources being arranged equidistantly or non-equidistantly. 3. The backlight device of claim 2, wherein the light sources arranged in an equidistant manner maintain an equal spacing distance 〇4 according to one of the XY planes. As described in claim 3 a backlight device, wherein the optical member receives a mask complex unit normal vector, and the unit normal vectors are equally spaced apart according to the optical axis. The backlight device according to claim 2, wherein the device is non-equal The light sources arranged in a distance are spaced apart from each other according to one of the XY planes. 6. The backlight device of claim 5, wherein the receiving member of the optical member has a plurality of unit normal vectors, the unit normal vectors decreasing the separation distance outward according to the optical axis. 7. The backlight device of claim 2, wherein the light sources are 100103793 Form No. A0101 Page 23 of 43 1002006808-0 201232122 Arranged in an arc according to the χγ plane. 8. The backlight device of claim 1, wherein the first phase is a meandering plane or a meandering plane. 9. The backlight device of claim 8, wherein when the first phase is the pupil plane, the first rays are diffused according to the first optical paths on the plane, and the second The light is conducted on the plane of the second optical path according to the second optical path. The backlight device of claim 9, wherein the receiving surface and the light emitting surface of the optical member are opposite when the second light rays are conducted on the pupil plane according to the second optical paths. The backlight device according to claim 10, wherein the receiving surface is increased in face angle according to an optical axis on the χ γ plane, the illuminating surface The tangent angle is reduced externally according to the optical axis. 12. The backlight device of claim 11, wherein the first light rays and the second light rays are different in the XY plane by an angle of 4 degrees. In the ninth backlight device, the receiving surface and the light emitting surface of the optical member are respectively formed according to the plane when the second light rays are parallelly guided according to the second optical paths on the XY plane. Concave. 14. The backing region of claim 13, wherein the receiving surface of the towel has a decreasing tangent angle according to an optical axis on the XY plane, and the light emitting surface increases the cutting angle according to the optical axis. The backlight device of claim 8, wherein when the first phase 100103793 is the XZ plane, the first rays are on the plane according to the form numbers A0101, page 24/total 43 pages. 1002006808-0 201232122 The first optical path is diffused, and the second light rays are conductively conducted in parallel or parallel according to the second optical paths. The backlight device of claim 15, wherein the receiving surface and the light emitting surface of the optical member are crossed when the second light rays are cross-conducted according to the second optical paths on the pupil plane The receiving surface and the light emitting surface of the optical member are respectively formed according to the plane of the pupil, when the second light rays are respectively guided in parallel according to the second optical paths. Concave. 17. The backlight device of claim 16, wherein the receiving surface is When the light-emitting surface is convex according to the plane of the pupil, the receiving surface increases the tangent angle according to an optical axis on the plane of the pupil, and the light-emitting surface decreases the tangent angle according to the optical axis. ν:|5* II Γή-Κ ?-边-..Ά 〆-广ρ Ά-,.Ning: face i, for the strict g': j 18 · as claimed in claim 17 of the backlight device, The amount of change in the angle between the first ray and the second ray in the XZ plane is increased by 1 degree 〇19. The backlight device of claim 16 wherein the receiving surface and the illuminating surface According to the XZ plane, when the HZ is a concave surface, the receiving surface reduces the tangent angle according to an optical axis on the XY plane, and the light emitting surface increases the tangent angle according to the optical axis. The backlight device of claim 19, wherein the angles of the first rays and the second rays on the XZ plane are increased by 1 degree 21 . The device includes: a plurality of light sources arranged in a χ-plane according to a χ plane and generating a plurality of first rays, wherein the first rays have a plurality of optical paths on the χ γ plane, and the set positions of the light sources correspond to the light rays Optical path; and 100103793 Form No. A0101 Page 25 of 43 1002006808-0 201232122 A light guide plate is disposed on one side of the light sources, and the light guide plate receives the first light rays according to the optical paths, and corresponding outputs A plurality of second rays are located on an xz plane and have the optical paths. The backlight device of claim 21, wherein the light sources are arranged equidistantly or non-equidistantly in the XY plane. The backlight device of claim 22, wherein the light sources arranged equidistantly maintain an equally spaced distance in accordance with an optical axis. The backlight device of claim 22, wherein the light sources that are non-equidistantly arranged are spaced apart from each other by an optical axis. The backlight device of claim 21, wherein the first light lines are cross-conducted in the XY plane, and the second light rays are cross-conducted in the XZ plane. The backlight device of claim 25, wherein an angle of the first light rays on the XY plane is different from an angle of the second light rays on the XZ plane by 40 degrees. 100103793 Form No. A0101 Page 26 of 43 1002006808-0