TW200821708A - Liquid crystal display, backlight module thereof and light guide structure thereof - Google Patents

Abstract

A liquid crystal display, backlight module thereof and light guide structure thereof is provided. The light guide structure includes a light guide plate, at least one diffusion element and several dots. The light guide plate includes a plate body, at least one first groove in one side of the plate body, and at least one second groove in the bottom of the first groove and the bottom of one side of the plate body. The diffusion element is disposed on the first groove, and the dots are disposed on the surface of the diffusion element.

Description

200821708 IX. Description of the Invention: [Technical Field of the Invention] In particular, a liquid crystal display and a backlight thereof The present invention relates to a display module and a light guiding structure thereof. [Prior Art] A liquid crystal display generally has a liquid crystal display panel to display an image. Ο Since the liquid crystal shirt of the liquid crystal age panel towel does not have the illuminating property, it is required to provide a device, such as a light module, to provide a liquid crystal display panel. The liquid crystal display panel is composed of a plurality of liquid crystal domains, and each liquid has a _ requirement, so the back domain group needs to touch the surface light to the liquid crystal display panel.呷9 uniform Tea photo "1A, IB map", 知知夕北止# Λ , a guide ^^ 11Λ y Moonlight phase and 1 (8) includes light source 120 and temple board H0. The light source 12 is relative to the light guide plate 〗 〖, 夂 110 is used to guide the sigh of the first sigh of the 120 road shot, the light guide plate is cut, and the direction of the light emitted by the cut light is cut, and then the well is fished, The spring light source is converted into a surface light source Q. Because of the light, "6, green, social/yo green, after entering the light guide plate 110, you must order the light, or the spring, to mix the light, so that the point light source or the first n2 The park tries yours &,, and 奂 奂 into the surface light source, so the light-emitting surface and then the liquid-resistant __ silk 112 area, (ie, air) is incident on the light-tight medium. (Fresnel) When there is no 贝 蛉 蛉 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反It is provided in the groove of the light guide plate, and the light source 12G is disposed corresponding to the groove (1). Moreover, the light is recessed into the light guide plate 110, thereby relatively reducing the incident angle of the light of 200821708, and further Reducing the interface's Fresnei loss. ... and 'looking in the backlight module in addition to the hair shot There is also light leakage on the side of the light ^b^. The f-light module of the known light mostly takes into account the effective use of the light emitted by the light-emitting household, and does not take into account the use of the side light. [Abstract] Cry, ΓΓΓί Guan The problem is that the purpose of the present invention is to provide a liquid crystal display loss group and its light guiding structure, and to use the bribe to resolve the problem of the reflection of the prior art and the use of the side illumination. To achieve the above object, the present invention The exposed light guiding structure comprises a diffusing member and a mesh point. The light guiding plate comprises a plate and a plate groove. (4) (5) The eve-fir-groove and the at least one day-first groove are located at the side of the plate body. The grooves are respectively located at the bottom of the side of the first groove and located at the side of the side of the plate body. The diffusing members are respectively located at the first concave portion and are provided with a plurality of mesh points on the surface thereof. The first 7 lines of the structure. The 光源4 (5) slot can be provided with a light source group to provide light, and the diffusion member and the light guide plate 35 are made of the same material. Furthermore, the shape of the molding is The surface of the phase is also attached to the film. In the light source group and above, the following table. Rectangular or roughly 骂 久 久 ;; ^ 成 呈 ® ® 大致 大致 、 、 、 、 、 、 、 、 、 大致 大致 大致 大致 大致 大致 大致 大致 大致 大致 大致 大致 大致 _ _ _ _ _ _ The depth of the second groove 200821708 can be based on the lightness of the __ and / or the thickness of the plate between the light guide plate. From the source _ = the liquid crystal display, including the reverse a light guide plate, a source, and an expansion member, a dot, a diffusion plate, and a liquid crystal panel. The first light guide plate includes a plate body, at least - [a groove and at least a second groove. The first groove is located at the plate The second groove is located at the bottom of the side of the first groove of the plate body. The diffusing members are respectively disposed on the surface of the first groove and are provided with a plurality of mesh points. ...,

/ The light guide plate is set above the reverse. The light is divided into the first concave (four), and its luminous surface is divided by the opening σ of the second groove. The diffusing member is located on the upper surface of the first slot, and is disposed on the surface of the first slot. The diffusing plate is located above the light guiding plate and the diffusing member, and the liquid crystal panel is located above the diffusing plate. Further, between the diffusing plate and the liquid crystal panel Further, at least one brightness-increasing sheet is further provided to further improve the utilization of light. The features and implementations of the present invention will be described in detail below with reference to the preferred embodiments. [Embodiment] The details of the present invention are described in detail with reference to the drawings, which are referred to as reference numerals. Referring to "Fig. 3", a liquid crystal display according to the present invention includes: a backlight module 200 and liquid crystal display panel 3〇〇. The liquid crystal display panel 300 is used to display images, including two substrates, and a liquid crystal layer between the substrates (not shown). The backlight module 2 is disposed under the liquid crystal display panel 300 to provide a white light for the liquid crystal display panel 3 to display images. 200821708 Referring again to "3, 4, 5", the backlight module 2A includes a light guiding structure, a light source group 220, a reflection sheet 250, and a diffusion plate 260. The light guiding structure includes a light guide plate 210 and a diffusing member 23Q. The light guiding structure is located between the reflective sheet 250 and the diffusing plate 260, and the light source group 22 is located between the light guiding junction reflecting sheets 250. The light guide plate 2UM stands above the reflection sheet 250 and has a plate body 212, at least one first groove 214 and at least a second groove 216. The first recess 214 is located on the side of the panel. The second recesses 2 6-1 correspond to the first 214, respectively located at the bottom of the first recess 2 丨 4 and at the bottom of the side of the plate 212. The light source group 220 corresponds to the first groove 214, respectively located in the first groove 2, and the light-emitting surface of the light source group (10) is divided into the second feeding opening 。. Herein, each light source group may include one or more light emitting diodes/, and the depth of the first groove 216 of the towel may be adjusted according to the type of the light source group to provide a combination between the light source group _ and the light guide plate. The diffuser 230 corresponds to the first concave square. The diffusion is finely located in the second recess; 216;; the other is the upper side of the groove 2 to guide the upper side of the opening from the side of the light source group 22G, and is connected to the board to transmit the direction of the light emitted by the light source group 22_ , that is, within the system. The plate body 212 of the light plate 210 is disposed on the diffuser plate 260, and the surface of the diffuser 230 is disposed above the Wu diffuser 23G.狃图”)), to change the light two complex dots 240 (such as "6A, the direction of the order, to assist the use of the light source group 220 200821708 = to = Su" and the light expansion is good and thin (10) Set the preferred effect of uneven distribution according to the vehicle group. Here, the haiku reduces the size of the 曰 曰 曰 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 Therefore, the expansion member 230 and the plate 2 can be made of the same material. That is, the diffusion member MO can be extended to the second body or the upper portion of the body 212 (to the flute - The opening of ', ^ is placed on the surface of the cantilever, such as "cantilever" of "Fig. 7: ^) and the dot 24". In addition, the diffusion member 23 can also be disposed on the adhesive film, and the dot 240 is disposed on The side of the upper surface of the rolled 矣, 、, ◊ is connected to the surface of the opening of the second groove, and one of the adhesive films is on the upper surface of the mesh, such as “the first The upper and lower surfaces of the 1 arm or the adhesive film) of the cantilever or adhesive film are attached to the diffuser 230. (For example: At this time, the upper and lower surfaces are covered with a dot 240. For example, the dot 240 on the upper and lower surfaces of the "figure map" can be exchanged. Here, the bottom of the second groove 216 is apart from It can be such as; ς 大致 is generally rectangular, or it can be substantially trapezoidal (as shown in "8th Η :" is substantially rounded (as shown in Figure 9).* 8 is shown in the figure), or the size of the light-emitting surface of the preferred source group of the opening surface of the second groove. 糸 corresponds to the bottom of the second groove 2]6 corresponding to the corresponding light. The length u1 and the width m of the light-emitting surface of the second recess 216 are substantially equal to the length U1 and the width L2 of the open surface of the light source group 22, respectively. The length is equal to the length di and the width D2 of the light-emitting surface of the light source group 220 of 200821708. The bottom of the second groove 216 is substantially arc-shaped, to show the "nc map", the second groove 216 The short (10) and the long axis A2' of the opening surface are equal to the length D1 and the width 〇2 of the light-emitting surface of the corresponding light source group 220. Further, the tea photo "12th picture", the diffusion plate 26〇 and the liquid crystal surface At least a brightness enhancement sheet 270 is provided to further enhance the utilization of light. Between the above, a conventional optical module such as the one shown in FIG. 1B and a backlight module according to the present invention. In the simulation experiment, it can be seen that, in the two-light module, the backlight module according to the present invention can increase about 2, and the left and right 2T utilizes about 30 to 50% of the light source group to emit light laterally, and can reduce the light-incident side redundancy. The phenomenon that the dark f is unevenly distributed. Although the technology of the present invention has been described above, the iron is not intended to limit the present invention, and any one skilled in the art can change and retouch without departing from the essence of the present invention. 'All should be covered in the scope of the invention, so the two Ming Zhi Wei m as the post-shelf _ material fiber ride defines the scale. " [Simple Description] The 1Ag is a top view of a conventional backlight module and group; the 1B is a side view of the backlight module of "1A"; the f2 is another conventional backlight module. FIG. 3 is a perspective view of a liquid crystal display according to an embodiment of the present invention. FIG. 4 is a partial perspective view of a backlight module according to a first embodiment of the present invention. Explosion diagram of the backlight module; the second figure is a cross-sectional view of the backlight 10 200821708 module according to the embodiment of H in the "Fig. 4", and the 6B is based on "4th" Figure 3 is a cross-sectional view of the mid-line optical module; U is an example of a light-emitting structure of the second embodiment; (4) a three-dimensional view of the backlight module according to the second embodiment of the present invention; Fig. 9 is a (4) partial cross section of the f-light touch of the third material of the present invention. (4) The figure is a three-dimensional diagram of the light according to the present invention. The first image is the first life according to the present invention. An enlarged view of the back opening; a second groove 11B of the light guiding structure of the yoke and the yoke is an enlarged view of the opening according to the present invention; a second groove of the second light guiding structure of the second embodiment The nc diagram is an enlarged view of the opening of the light guiding structure according to the third embodiment of the present invention; and the illuminating surface of the light guiding plate of the stereoscopic non-backlighting module of the liquid crystal display according to the present invention Slot light source backlight module light guide plate [main component symbol description] 100......................... 110·······... ................. 112........................... 114.... ....................... 120................. 200........ ... 210. 200821708 212.............................plate body 214........ .....................first groove 216........................ ..... second groove 220.............................light source group 230 ........ .....................Diffuser 240.......................... ...networks 250...................................reflector 260....... ......................Diffuser 270 .................. ........... Brightening film 300 .............................LCD panel D1.... ...........................1 D2..................... ..........wide L1................................^ L2.... ...........................% A1..................... .......... short car by A2............................... long axis 12

Claims (1)

200821708 X. Patent application scope: 】· A light guiding structure comprising: a light guide plate comprising: a plate body; a stomach-stomach 1 groove located at a side of the plate body; and a bottom portion of the first groove And located in the f diffusion member, respectively located above the first groove; and vertical to several mesh points, located on the surface of the diffusion member. The light guiding structure according to claim 1, wherein the opening of the second groove is one of the two extensions of the opening, and the expansion is performed on the surface of the cantilever from the point of the groove. The light guide structure of the present invention, wherein the mesh point is disposed on the light guiding structure of the cantilever, wherein the mesh point is disposed on the upper side of the cantilever. The light guiding structure, wherein the guiding member and the diffusing member are a light guiding structure, wherein each of the diffusing members further comprises: an upper surface of the adhesive film on the upper surface of the light source group, and The dot system is disposed in the light guiding structure of the adhesive film, wherein the dot is disposed on the adhesive film 8' ::::;:::^ 13 200821708 9. The light guiding structure according to claim 5, The second concave, σ" station version - the side is connected to the side of the plate above the opening of the first child. The bottom of the groove is substantially the same as the light guiding structure of claim 1, wherein the first arc is shaped. The bottom of the groove is roughly 】! The light guiding structure of claim 1, wherein the first rectangle. The bottom of the groove is substantially 12. The light guiding structure of claim 1, wherein the first trapezoid. The depth of the groove is adjusted according to the light guiding structure of claim 1, wherein the thickness of the second plate is adjusted. The point system is manufactured by using sandblasting. 4. The light guiding structure according to claim 1, wherein the meshing technique is formed on the surface of the diffusing member. 15· A backlight module, comprising: a light guide plate, comprising: a plate body; at least a first groove located at a side of the plate body; and ▲ at least a second groove respectively located at the first portion a bottom portion of the side of the plate body; a plurality of light source groups respectively located on the first concave light surface corresponding to the second groove; 9, the light source group of the b-amplifier, respectively located Above the first groove; and a plurality of dots located on the surface of the diffuser. (4) The backlight module according to claim 15, wherein the u, the mother 4 expansion piece is the plate body ==: the surface: the first groove extends - the cantilever, and the 14th 200821708 The module, the light point module is placed on the optical module of the cantilever, wherein the reward point is recorded in the cantilever 19. = ^. In the back domain group of 16, the squash light plate and the diffusing member are adhered to the upper surface of the source group, and the dot is disposed in the backlight module of 21. = 2Γ, wherein the dot system is set. The adhesive film 22. The upper surface and the lower surface of the backlight module according to claim 20. , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , = The side of the 攸 version. . The backlight module described in Item 15 of the present invention corresponds to the backlight module of the large t-request 5 of the corresponding open surface of the light source group, "the size of the two. Wang Yuan弧罘。 The bottom of the groove is substantially 26. The backlight module of claim 25, 27. ^ and the long axis are substantially equal to the short surface of the opening surface of the ^^= slot. Ai "The length of the luminous surface of the Haiyuan source group = the backlight module M described by the requester 5, the king rectangle. ^ The bottom of the groove is substantially 28. The backlight module as described in claim 27, The length of the opening surface of the two grooves is substantially equal to the corresponding light-emitting surface of the light source group. 29. The backlight module according to claim 15, wherein the length and the view are trapezoidal. The backlight module of claim 29, wherein the second and the width are substantially equal to the corresponding light emitting surface of the light source group; the length of the light source is 31. The backlight is as claimed in claim 15 a module in which the second groove is adjusted by the type of the light source group. Further $ according to 32. a backlight module, wherein the thickness of the second body is adjusted. The ice degree ir' is a backlight module according to the item 3, wherein the dot is formed by using the technology of Lee & The backlight module of claim 15 wherein each of the light source groups comprises at least one light emitting diode. 35. A liquid crystal display comprising: a reflective sheet; a light guide plate Located above the reflective sheet, comprising: a plate body; at least one first groove located at one side of the plate body; and at least a second groove respectively located at the bottom of the first groove and located at the edge plate The bottom of the side of the body; the light she is respectively located in the first groove, and the hair surface of the light source level respectively corresponds to the second groove; to a diffusion member, respectively located in the first groove Above; a plurality of dots on the surface of the diffuser; the center plate is located above the light guide plate and the diffuser; and a liquid crystal panel of 200821708 located above the edge diffuser. The liquid crystal display described in 36::=! Each of the diffusing members is the moon Above the opening of the two grooves, a leg of the county extending toward the first groove, and the dot is disposed on the surface of the cantilever. The liquid crystal display of item 36, wherein the dot is disposed on the surface of the cantilever On the surface. 38. The liquid crystal display of claim 61, wherein the dot is disposed on the upper surface and the lower surface of the cantilever. Ο 39t The liquid crystal display described above, wherein the light guide plate and the diffusion member are integrally formed. 4. A liquid crystal display according to claim 35, wherein each of the upper surfaces of the upper surface, the second liquid crystal display device of claim 4, is on the upper surface of the crucible. The middle phase is disposed on the upper surface and the lower surface of the liquid crystal display film as described in claim 4,. - placed in the adhesion item 4G, the __, which is connected to the side of the plate above the opening of the groove. 44. The liquid crystal display according to claim 35, wherein the 'J of the opening surface of the second groove corresponds to the size of the corresponding light emitting surface of the light source group. 45. The liquid crystal display of claim 35, wherein the upper portion is 1] curved. The bottom of the groove is substantially 46. The liquid crystal display according to claim 45, wherein the second and the long axis are substantially equal to the length of the corresponding light emitting surface of the light source group, 200821708 f i... And wide. 47. The liquid immersion day as described in claim 35, wherein the sputum wears a rectangle. Haidi - the bottom of the groove is roughly 48. As described in Item 47, the liquid 曰 曰 叩 叩 叩 叩 川 川 员 员 员 员 员 员 里 里 里 里 里 里 里 里 里 里 里 里 里 里 里 里 里 里 里 里 里 长 长 长 长- The opening face of the groove 49. The length and width of the luminous surface of the liquid, which is the source of the light, is as described in claim 35. It is trapezoidal. The liquid crystal device of the display device, wherein the bottom portion of the second groove is substantially the same as the item 49, wherein the twelve lengths and the widths are substantially equal to the opening faces of the corresponding grooves, such as the request item. The liquid crystal display has a length and a width according to the type of the light source group. The depth of the groove is the liquid crystal display according to claim 35, which is according to the plate body. The thickness is adjusted. The depth of the groove is the liquid crystal display according to claim 35, wherein the dot-making technique is formed on the surface of the spacer. D用D贝妙 54. The liquid crystal display according to item 35 is a light-emitting diode. The liquid crystal display according to claim 35, between the diffusing plate and the liquid crystal panel, wherein each of the light source groups comprises at least one of: at least one brightness enhancing film bit 18