CN101922680B - Light guide plate with V-shaped structure and backlight module including the light guide plate - Google Patents

Abstract

A light guide plate with V-shaped structure and a backlight module comprising the same are provided. The light guide plate comprises a substrate and a plurality of straight strip-shaped V-shaped structure groups. The substrate is provided with a first side surface and a second side surface opposite to the first side surface, wherein the first side surface is a light incident surface. Each straight strip-shaped V-shaped structure group is composed of at least one V-shaped element, a first base angle and a second base angle are formed between two inclined planes of each V-shaped element and the horizontal plane of the substrate, and the first base angle is closer to the first side surface than the second base angle. The straight strip-shaped V-shaped structure group is provided with a plurality of first base angle average values, a plurality of second base angle average values and a plurality of minimum base angle average values respectively. The plurality of straight strip-shaped V-shaped structure groups comprise a first V-shaped structure group and a second V-shaped structure group positioned between the first side surface and the first V-shaped structure group, wherein the average value of the minimum base angles of the first V-shaped structure group is smaller than the average value of the minimum base angles of the second V-shaped structure group.

Description

Translated fromChinese

具有V型结构的导光板与包含此导光板的背光模块Light guide plate with V-shaped structure and backlight module including the light guide plate

本申请是申请日为2009年3月2日，申请号为200910004678.6，发明名称为“具有V型结构的导光板与包含此导光板的背光模块”的发明专利申请的分案申请。This application is a divisional application of an invention patent application with an application date of March 2, 2009, an application number of 200910004678.6, and an invention title of "Light guide plate with V-shaped structure and backlight module including the light guide plate".

技术领域technical field

本发明涉及一种导光板与背光模块，特别是涉及一种具有混搭的V型结构的导光板与包含此导光板的背光模块。The invention relates to a light guide plate and a backlight module, in particular to a light guide plate with a mixed V-shaped structure and a backlight module including the light guide plate.

背景技术Background technique

背光模块为液晶显示面板的关键零组件之一。鉴于液晶本身并不会发光，因而需使用背光模块来提供光源，以使液晶显面板能够显示正常且亮度匀称的影像。背光模块通常包含有光源、导光板及位于导光板上方的多张光学膜片，例如：扩散片与增光片(BEF)等，其中导光板用以将光源所发出的光导引至光学膜片，再通过光学膜片来增加出射光线的方向性，以使出射光线的分布能够更加均匀。The backlight module is one of the key components of the liquid crystal display panel. Since the liquid crystal itself does not emit light, it is necessary to use a backlight module to provide a light source so that the liquid crystal display panel can display normal images with uniform brightness. A backlight module usually includes a light source, a light guide plate, and multiple optical films located above the light guide plate, such as a diffuser and a brightness enhancement film (BEF). The light guide plate is used to guide the light emitted by the light source to the optical film , and then increase the directionality of the outgoing light through the optical film, so that the distribution of the outgoing light can be more uniform.

由于具有微结构的导光板的出光光型比平面导光板的出光光型集中，故现有技术常利用设置微结构的方式来提高导光板的亮度。公知的具有微结构的导光板具有一入射面、一出射面和一反射面，而反射面的结构为同一种型式的V型微结构，其中此V型微结构具有一主要角度。公知技术是通过调整此V型微结构的深度或坡度(Pitch)来控制出光量，以满足出光的均匀性要求。然而，当光线在公知的具有微结构的导光板内传递时，刚进入导光板内的光线在经过导光板传递后，其所形成的后端光线的光型会有所变化，因而导致导光板上的前中后各区的出光光型产生差异，即各区射出至光学膜片的光的入射角度有相当大的差异。另一方面，由于导光板上方的光学膜片是均匀的材料，故入射至光学膜片的光入射角度必须是愈接近愈好。因此，公知的导光板的出光光型很难在导光板上前中后各区产生一致的光入射角度，因而无法满足光学膜片的最佳光入射角度。Since the emitted light pattern of the light guide plate with microstructures is more concentrated than that of the planar light guide plate, the prior art often utilizes microstructures to improve the brightness of the light guide plate. The known light guide plate with microstructure has an incident surface, an outgoing surface and a reflective surface, and the structure of the reflective surface is the same type of V-shaped microstructure, wherein the V-shaped microstructure has a main angle. In the known technology, the amount of emitted light is controlled by adjusting the depth or pitch of the V-shaped microstructure, so as to meet the uniformity requirement of the emitted light. However, when light passes through the known light guide plate with microstructures, the light pattern of the rear light rays formed by the light that just entered the light guide plate will change after passing through the light guide plate, thus causing the light guide plate There are differences in the light patterns of the front, middle and rear areas on the surface, that is, there are considerable differences in the incident angles of the light emitted from each area to the optical film. On the other hand, since the optical film above the light guide plate is made of uniform material, the incident angle of the light incident on the optical film must be as close as possible. Therefore, it is difficult for the known light-emitting light type of the light guide plate to produce consistent light incident angles in the front, middle and rear regions of the light guide plate, thus failing to satisfy the optimum light incident angle of the optical film.

发明内容Contents of the invention

因此，本发明一方面即在于提供一种具有V型结构的导光板与包含此导光板的背光模块，以改善公知的导光板上前中后各区的出光光型不一致的现象。Therefore, one aspect of the present invention is to provide a light guide plate with a V-shaped structure and a backlight module including the light guide plate, so as to improve the known phenomenon of inconsistency in the light patterns of the front, middle and rear regions of the light guide plate.

依照本发明的实施例，本发明的具有V型结构的导光板包含基板和多个直条状V型结构组，其中基板具有一第一侧面和与此第一侧面相对的一第二侧面。这些直条状V型结构组形成于基板上与第一侧面相邻的一表面上，其中每一个直条状V型结构组是由至少一个V型元件所组成，每一个V型元件的两个斜面与基板的水平面形成有一第一底角和一第二底角，第一底角比第二底角靠近第一侧面，且第一底角小于或等于第二底角。这些直条状V型结构组分别具有多个第一底角平均值和多个第二底角平均值，第一底角平均值分别为直条状V型结构组中的V型元件的第一底角的平均值，第二底角平均值分别为直条状V型结构组中的V型元件的第二底角的平均值，第二底角平均值由第一侧面逐渐变小至基板的一中间位置。According to an embodiment of the present invention, the light guide plate with a V-shaped structure of the present invention includes a substrate and a plurality of straight V-shaped structure groups, wherein the substrate has a first side and a second side opposite to the first side. These straight V-shaped structure groups are formed on a surface adjacent to the first side of the substrate, wherein each straight V-shaped structure group is composed of at least one V-shaped element, and each V-shaped element has two The first bottom angle and the second bottom angle are formed by the slope and the horizontal plane of the base plate, the first bottom angle is closer to the first side than the second bottom angle, and the first bottom angle is smaller than or equal to the second bottom angle. These straight V-shaped structure groups respectively have a plurality of average values of first base angles and multiple average values of second base angles, and the average values of the first base angles are respectively the first and second values of the V-shaped elements in the straight V-shaped structure groups. The average value of the first base angle and the average value of the second base angle are the average values of the second base angles of the V-shaped elements in the straight V-shaped structure group, and the average value of the second base angle gradually decreases from the first side to An intermediate position of the substrate.

依照本发明的又一实施例，直条状V型结构组分别具有多个最小底角平均值，这些最小底角平均值分别为所述多个直条状V型结构组中的V型元件的第一底角平均值与第二底角平均值的最小值，直条状V型结构组包含第一V型结构组和第二V型结构组，其中第一V型结构组平行于第一侧面，第二V型结构组位于第一侧面与第一V型结构组之间，其中第一V型结构组的最小底角平均值小于第二V型结构组的最小底角平均值。According to yet another embodiment of the present invention, the groups of straight V-shaped structures each have a plurality of average values of the minimum base angles, and these average values of the minimum base angles are respectively the V-shaped elements in the plurality of groups of straight V-shaped structures. The minimum value of the average value of the first base angle and the average value of the second base angle, the straight V-shaped structure group includes the first V-shaped structure group and the second V-shaped structure group, wherein the first V-shaped structure group is parallel to the second V-shaped structure group On one side, the second V-shaped structure group is located between the first side and the first V-shaped structure group, wherein the average minimum bottom angle of the first V-shaped structure group is smaller than the average minimum bottom angle of the second V-shaped structure group.

具体地，本发明的具有V型结构的导光板，包含：一基板，具有一第一侧面和与该第一侧面相对的一第二侧面，其中该第一侧面为一入光面；以及多个直条状V型结构组，其中每一所述直条状V型结构组是由至少一个V型元件所组成，每一所述至少一个V型元件的两个斜面与该基板的水平面形成有一第一底角和一第二底角，该第一底角比该第二底角靠近该第一侧面，所述多个直条状V型结构组分别具有多个第一底角平均值、多个第二底角平均值和多个最小底角平均值，所述多个第一底角平均值分别为所述多个直条状V型结构组中的V型元件的第一底角的平均值，所述多个第二底角平均值分别为所述多个直条状V型结构组中的V型元件的第二底角的平均值，所述多个最小底角平均值分别为所述多个直条状V型结构组中的V型元件的第一底角平均值与第二底角平均值的最小值，所述多个直条状V型结构组包含：一第一V型结构组，平行于该第一侧面；以及一第二V型结构组，位于该第一侧面与该第一V型结构组之间，其中该第一V型结构组的最小底角平均值小于该第二V型结构组的最小底角平均值。Specifically, the light guide plate with a V-shaped structure of the present invention includes: a substrate having a first side and a second side opposite to the first side, wherein the first side is a light incident surface; and multiple straight V-shaped structure groups, wherein each of the straight V-shaped structure groups is composed of at least one V-shaped element, and the two slopes of each of the at least one V-shaped element are formed with the horizontal plane of the substrate There is a first base angle and a second base angle, the first base angle is closer to the first side than the second base angle, and the plurality of straight V-shaped structure groups respectively have a plurality of average values of the first base angles , a plurality of average values of the second base angles and a plurality of average values of the minimum base angles, the plurality of average values of the first base angles are respectively the first bases of the V-shaped elements in the plurality of straight V-shaped structure groups The average value of the angle, the average value of the plurality of second base angles is the average value of the second base angles of the V-shaped elements in the plurality of straight V-shaped structure groups, and the average value of the plurality of minimum base angles is The values are the minimum values of the average value of the first base angle and the average value of the second base angle of the V-shaped elements in the plurality of straight V-shaped structure groups, and the plurality of straight V-shaped structure groups include: A first V-shaped structure group, parallel to the first side; and a second V-shaped structure group, located between the first side and the first V-shaped structure group, wherein the minimum of the first V-shaped structure group The average base angle is smaller than the minimum average base angle of the second V-shaped structure group.

依照本发明的又一实施例，直条状V型结构组分别具有多个最大底角平均值，这些最大底角平均值分别为所述多个直条状V型结构组中的V型元件的第一底角平均值与第二底角平均值的最大值，其中第一V型结构组的最大底角平均值小于第二V型结构组的最大底角平均值。According to yet another embodiment of the present invention, the groups of straight V-shaped structures respectively have a plurality of average values of the maximum base angles, and these average values of the maximum base angles are respectively the V-shaped elements in the groups of the plurality of straight V-shaped structures. The maximum value of the average value of the first base angle and the average value of the second base angle, wherein the average value of the maximum base angle of the first V-shaped structure group is smaller than the average value of the maximum base angle of the second V-shaped structure group.

具体地，本发明的具有V型结构的导光板，包含：一基板，具有一第一侧面和与该第一侧面相对的一第二侧面，其中该第一侧面为一入光面；以及多个直条状V型结构组，其中每一所述直条状V型结构组是由至少一个V型元件所组成，每一所述至少一个V型元件的两个斜面与该基板的水平面形成有一第一底角和一第二底角，该第一底角比该第二底角靠近该第一侧面，所述多个直条状V型结构组分别具有多个第一底角平均值、多个第二底角平均值和多个最大底角平均值，所述多个第一底角平均值分别为所述多个直条状V型结构组中的V型元件的第一底角的平均值，所述多个第二底角平均值分别为所述多个直条状V型结构组中的V型元件的第二底角的平均值，所述多个最大底角平均值分别为所述多个直条状V型结构组中的V型元件的第一底角平均值与第二底角平均值的最大值，所述多个直条状V型结构组分别包含：一第一V型结构组，平行于该第一侧面；以及一第二V型结构组，位于该第一侧面与该第一V型结构组之间，其中该第一V型结构组的最大底角平均值小于该第二V型结构组的最大底角平均值。Specifically, the light guide plate with a V-shaped structure of the present invention includes: a substrate having a first side and a second side opposite to the first side, wherein the first side is a light incident surface; and multiple straight V-shaped structure groups, wherein each of the straight V-shaped structure groups is composed of at least one V-shaped element, and the two slopes of each of the at least one V-shaped element are formed with the horizontal plane of the substrate There is a first base angle and a second base angle, the first base angle is closer to the first side than the second base angle, and the plurality of straight V-shaped structure groups respectively have a plurality of average values of the first base angles , a plurality of average values of the second base angles and a plurality of average values of the maximum base angles, the plurality of average values of the first base angles are respectively the first bases of the V-shaped elements in the plurality of straight V-shaped structure groups The average value of the angle, the average value of the plurality of second base angles is the average value of the second base angles of the V-shaped elements in the plurality of straight V-shaped structure groups, and the average value of the plurality of maximum base angles The values are respectively the maximum value of the average value of the first base angle and the average value of the second base angle of the V-shaped elements in the plurality of straight V-shaped structure groups, and the plurality of straight V-shaped structure groups respectively include : a first V-shaped structure group, parallel to the first side; and a second V-shaped structure group, located between the first side and the first V-shaped structure group, wherein the first V-shaped structure group The average maximum base angle is smaller than the average maximum base angle of the second V-shaped structure group.

依照本发明的又一实施例，本发明的背光模块至少包含：上述具有V型结构的导光板、光学膜片和第一光源，其中光学膜片设置于导光板的出光面的上方，第一光源邻设于导光板的第一侧面。According to yet another embodiment of the present invention, the backlight module of the present invention at least includes: the above-mentioned light guide plate with a V-shaped structure, an optical film and a first light source, wherein the optical film is arranged above the light-emitting surface of the light guide plate, and the first The light source is adjacent to the first side of the light guide plate.

附图说明Description of drawings

为使本发明的上述和其他目的、特征、优点能够更加明显易懂，以下结合附图描述本发明的几个优选具体实施例，其中关于附图的详细说明如下：In order to make the above and other purposes, features and advantages of the present invention more obvious and understandable, several preferred specific embodiments of the present invention are described below in conjunction with the accompanying drawings, wherein the detailed description about the accompanying drawings is as follows:

图1A为绘示本发明的背光模块的示意图。FIG. 1A is a schematic diagram illustrating a backlight module of the present invention.

图1B为绘示本发明的背光模块的底视示意图。FIG. 1B is a schematic bottom view illustrating the backlight module of the present invention.

图1C为绘示根据本发明的一V型元件的示意图。FIG. 1C is a schematic diagram illustrating a V-shaped device according to the present invention.

图1D为绘示根据本发明的另一V型元件的示意图。FIG. 1D is a schematic diagram illustrating another V-shaped device according to the present invention.

图2A为绘示本发明的一实施例的直条状V型结构组的示意图。FIG. 2A is a schematic diagram illustrating a straight V-shaped structure group according to an embodiment of the present invention.

图2B为绘示本发明的又一实施例的直条状V型结构组的示意图。FIG. 2B is a schematic diagram illustrating a straight V-shaped structure group according to another embodiment of the present invention.

图3为绘示本发明的又一实施例的直条状V型结构组的示意图。FIG. 3 is a schematic diagram illustrating a straight V-shaped structure group according to another embodiment of the present invention.

图4为绘示应用本发明的实施例的背光模块的光型示意图。FIG. 4 is a schematic diagram illustrating a light pattern of a backlight module applying an embodiment of the present invention.

其中，附图标记说明如下：Wherein, the reference signs are explained as follows:

10第一平行区            20一混搭区10 FirstParallel Area 20 One Mashup Area

30第二平行区            40第二混搭区30 SecondParallel Area 40 Second Mashup Area

100导光板               50第三平行区100light guide plate 50 third parallel zone

110第一侧面             102基板110first side 102 substrate

120第二侧面             130、140表面120second side 130, 140 surface

160V型元件              160A第一V型元件160V type component 160A first V type component

160B第二V型元件         160C第三V型元件160B second V-shaped component 160C third V-shaped component

170、180光源            188扩散板170, 180light source 188 diffusion plate

190光学膜片             210、220直条状V型结构组190optical film 210, 220 straight V-shaped structure group

230直条状V型结构组      240直条状V型结构组230 Straight V-shaped structure group 240 Straight V-shaped structure group

250直条状V型结构组      310第一V型结构组250 Straight V-shaped structure group 310 The first V-shaped structure group

320第二V型结构组        330第三V型结构组320 second V-shaped structure group 330 third V-shaped structure group

340第四V型结构组        350第五V型结构组340 The fourth V-shaped structure group 350 The fifth V-shaped structure group

360第六V型结构组360 sixth V-shaped structure group

A₁、B₁第一底角A₁ and B₁ first base angle

A₂、B₂第二底角A₂ and B₂ second base angle

θ₁、θ₂、θ₃光入射角度θ₁ , θ₂ , θ₃ light incident angles

具体实施方式Detailed ways

请参照图1A和图1B，图1A为绘示本发明的背光模块的示意图，图1B为绘示本发明的背光模块的底视示意图。本发明的背光模块至少包含：具有V型结构的导光板100、光学膜片190、第一光源170及第二光源180，其中导光板100具有第一侧面110、与第一侧面110相对的第二侧面120并且与第二侧面120、以及与第一侧面110相邻的两个表面130和140，表面130为一光反射面，而表面140则为背光模块的出光面。如图1A和图1B所示的背光模块为一双灯架构，其第一光源170及第二光源180分别邻设于导光板100的第一侧面110与第二侧面120。此外，本发明的背光模块也可为一单灯架构，其仅设置有第一光源170而未设置第二光源180。本发明的具有V型结构的导光板100包含基板102和多个直条状V型结构组(未图示)，其中基板102可为一楔板或平板；这些直条状V型结构组被形成于基板102的表面130上，其也可选择性地被形成于基板102的表面140上。如图1A所示，基板102的表面130上的V型结构与基板102的表面140上的V型结构具有不同的延伸方向。每一个直条状V型结构组是由至少一个V型元件160所组成，以下说明V型元件160的结构。Please refer to FIG. 1A and FIG. 1B , FIG. 1A is a schematic diagram illustrating a backlight module of the present invention, and FIG. 1B is a schematic bottom view illustrating a backlight module of the present invention. The backlight module of the present invention at least includes: alight guide plate 100 with a V-shaped structure, anoptical film 190, a firstlight source 170, and a secondlight source 180, wherein thelight guide plate 100 has afirst side 110 and a second side opposite to thefirst side 110. The twosides 120 and the twosurfaces 130 and 140 adjacent to thesecond side 120 and thefirst side 110 , thesurface 130 is a light reflection surface, and thesurface 140 is a light output surface of the backlight module. The backlight module shown in FIG. 1A and FIG. 1B is a double-lamp structure, and the firstlight source 170 and the secondlight source 180 are respectively disposed adjacent to thefirst side 110 and thesecond side 120 of thelight guide plate 100 . In addition, the backlight module of the present invention can also be a single-lamp structure, which is only provided with the firstlight source 170 without the secondlight source 180 . Thelight guide plate 100 with a V-shaped structure of the present invention includes asubstrate 102 and a plurality of straight V-shaped structure groups (not shown), wherein thesubstrate 102 can be a wedge or a flat plate; these straight V-shaped structure groups are formed on thesurface 130 of thesubstrate 102 , which may also optionally be formed on thesurface 140 of thesubstrate 102 . As shown in FIG. 1A , the V-shaped structures on thesurface 130 of thesubstrate 102 and the V-shaped structures on thesurface 140 of thesubstrate 102 have different extension directions. Each straight V-shaped structure group is composed of at least one V-shapedelement 160 , and the structure of the V-shapedelement 160 will be described below.

请参照图1A和图1C，图1C绘示根据本发明的一V型元件的示意图，其中背光模块100为一双灯架构。每一个V型元件160的两个斜面与基板102的水平面形成有第一底角A₁和第二底角A₂，第一底角A₁比第二底角A₂靠近第一侧面110，且第一底角A₁等于第二底角A₂，其范围基本上介于30度至45度之间。请参照图1A和图1D，图1D绘示根据本发明的另一V型元件的示意图，其中背光模块100为一单灯架构(即仅设置有第一光源170，而未设置第二光源180)。每一个V型元件160的两个斜面与基板102的水平面形成有第一底角B₁和第二底角B₂，第一底角B₁比第二底角B₂靠近第一侧面110，且第一底角B₁小于第二底角B₂，其范围基本上介于30度至45度之间。第一底角B₁基本上介于2度至8度之间，而第二底角B₂基本上介于30度至45度之间。Please refer to FIG. 1A and FIG. 1C . FIG. 1C shows a schematic diagram of a V-shaped device according to the present invention, wherein thebacklight module 100 is a double-lamp structure. The two slopes of each V-shapedelement 160 and the horizontal plane of thesubstrate 102 form a first base angle A₁ and a second base angle A₂ , the first base angle A₁ is closer to thefirst side 110 than the second base angle A₂ , And the first base angle A₁ is equal to the second base angle A₂ , and its range is basically between 30° and 45°. Please refer to FIG. 1A and FIG. 1D. FIG. 1D shows a schematic diagram of another V-shaped element according to the present invention, wherein thebacklight module 100 is a single lamp structure (that is, only the firstlight source 170 is provided, and the secondlight source 180 is not provided. ). The two slopes of each V-shapedelement 160 and the horizontal plane of thesubstrate 102 form a first base angle B₁ and a second base angle B₂ , the first base angle B₁ is closer to thefirst side 110 than the second base angle B₂ , And the first base angle B₁ is smaller than the second base angle B₂ , and its range is basically between 30° and 45°. The first base angle_B1 is substantially between 2 degrees and 8 degrees, and the second base angle_B2 is basically between 30 degrees and 45 degrees.

本发明主要通过在基板102的不同区域混搭具有不同底角角度的V型元件，以在各区域中产生出光角度相当一致的光型，从而满足光学膜片190的最佳光入射角度的需求。The present invention mainly mixes and matches V-shaped elements with different base angles in different regions of thesubstrate 102 to generate light patterns with fairly consistent light emitting angles in each region, thereby meeting the requirements of the optimal light incident angle of theoptical film 190 .

以下说明在基板102上的不同区域混搭具有不同底角角度的V型元件160的设计原则。The design principles of mixing and matching V-shapedelements 160 with different base angles in different regions on thesubstrate 102 are described below.

设计原则IDesign Principles I

此设计原则是根据第二底角平均值的变化。This design principle is based on the variation of the average value of the second base angle.

请参照图2A，其绘示本发明的一实施例的直条状V型结构组的示意图，其中多个直条状V型结构组210、230和250是由第一侧面110至第二侧面120依序设置在基板102上。直条状V型结构组210、220、230、240和250分别具有多个第一底角平均值和多个第二底角平均值，其中所述第一底角平均值分别为直条状V型结构组210、220、230、240和250中的V型元件160的第一底角的平均值，所述第二底角平均值分别为直条状V型结构组210、220、230、240和250中的V型元件160的第二底角的平均值。所述第二底角平均值由第一侧面110逐渐变小至基板的一中间位置(直条状V型结构组230所在位置)，即：直条状V型结构组210的第二底角平均值＞直条状V型结构组220的第二底角平均值＞直条状V型结构组230的第二底角平均值。Please refer to FIG. 2A, which shows a schematic diagram of a straight V-shaped structure group according to an embodiment of the present invention, wherein a plurality of straight V-shapedstructure groups 210, 230 and 250 are from thefirst side 110 to thesecond side 120 are sequentially disposed on thesubstrate 102 . Straight V-shapedstructure groups 210, 220, 230, 240 and 250 respectively have a plurality of average values of the first base angles and a plurality of average values of the second base angles, wherein the average values of the first base angles are respectively straight The average value of the first base angles of the V-shapedelements 160 in the V-shapedstructure groups 210, 220, 230, 240, and 250, and the average value of the second base angles are respectively the straight V-shapedstructure groups 210, 220, 230 , 240 and 250 the average value of the second base angle of the V-shapedelement 160. The average value of the second bottom angle gradually decreases from thefirst side surface 110 to a middle position of the substrate (where the straight V-shapedstructure group 230 is located), that is, the second bottom angle of the straight V-shapedstructure group 210 The average value>the average value of the second base angle of the straight V-shapedstructure group 220 >the second base angle average value of the straight V-shapedstructure group 230 .

请参照图2B，其绘示本发明的又一实施例的直条状V型结构组的示意图，其采用混搭方式来实施在此所述的设计原则。如图2B所示，直条状V型结构组210是由至少一个第一V型元件160A所组成；直条状V型结构组230是由至少一个第二V型元件160B所组成；直条状V型结构组250是由至少一个第三V型元件160C所组成；直条状V型结构组220是由第一V型元件160A和第二V型元件160B混搭而成；直条状V型结构组240是由第二V型元件160B和第三V型元件160C混搭而成。所谓“混搭方式”可为例如交错设置。Please refer to FIG. 2B , which is a schematic diagram of a straight V-shaped structure group according to another embodiment of the present invention, which uses a mix-and-match method to implement the design principles described herein. As shown in Figure 2B, the straight V-shapedstructure group 210 is made up of at least one first V-shapedelement 160A; the straight V-shapedstructure group 230 is made up of at least one second V-shapedelement 160B; The V-shapedstructure group 250 is composed of at least one third V-shapedelement 160C; the straight V-shapedstructure group 220 is formed by mixing and matching the first V-shapedelement 160A and the second V-shapedelement 160B; the straight V-shaped The V-shapedstructure group 240 is formed by mixing and matching the second V-shapedcomponent 160B and the third V-shapedcomponent 160C. The so-called "mashup method" can be, for example, interlaced arrangement.

此设计原则会依背光模块为双灯架构或单灯架构而有所不同。This design principle will vary depending on whether the backlight module is a dual-lamp structure or a single-lamp structure.

双灯架构Dual Lamp Architecture

当第二侧面120为导光板100的另一入光面时，即背光模块为双灯架构时，其第一底角平均值等于第二底角平均值，故在此以第二底角平均值来进行说明。此时，直条状V型结构组210、220、230、240和250的第二底角平均值由中间位置逐渐变大至第二侧面120，即直条状V型结构组230的第二底角平均值＜直条状V型结构组240的第二底角平均值＜直条状V型结构组250的第二底角平均值。举例而言，如表一所示，其中第二底角平均值为直条状V型结构组210(第一侧面110)逐渐变小至直条状V型结构组230(中间位置)，再逐渐变大至直条状V型结构组250(第二侧面120)。When thesecond side 120 is the other light-incident surface of thelight guide plate 100, that is, when the backlight module is a double-lamp structure, the average value of the first base angle is equal to the average value of the second base angle, so the average value of the second base angle is used here. value to explain. At this time, the average value of the second base angles of the straight V-shapedstructure groups 210, 220, 230, 240, and 250 gradually increases from the middle position to thesecond side 120, that is, the second bottom angle of the straight V-shapedstructure group 230. The average value of base angles<the average value of the second base angles of the straight V-shapedstructure group 240<the second average base angle value of the straight V-shapedstructure group 250 . For example, as shown in Table 1, the average value of the second bottom angle is that the straight V-shaped structure group 210 (first side 110) gradually decreases to the straight V-shaped structure group 230 (middle position), and then It gradually becomes larger to the straight V-shaped structure group 250 (the second side 120 ).

表一Table I

请参照图2B和表一，直条状V型结构组210是由第一V型元件160A(45度/45度)所组成；直条状V型结构组230是由第二V型元件160B(43度/43度)所组成；直条状V型结构组250是由第三V型元件160C(45度/45度)所组成；直条状V型结构组220是由第一V型元件160A和第二V型元件160B混搭而成(44度/44度)；直条状V型结构组240是由第二V型元件160B和第三V型元件160C混搭而成(44度/44度)，其中第一V型元件160A与第三V型元件160C为同一型式的V型元件。Please refer to FIG. 2B and Table 1, the straight V-shapedstructure group 210 is composed of the first V-shapedelement 160A (45 degrees/45 degrees); the straight V-shapedstructure group 230 is formed by the second V-shapedelement 160B (43 degrees/43 degrees); the straight V-shapedstructure group 250 is composed of the third V-shapedelement 160C (45 degrees/45 degrees); the straight V-shapedstructure group 220 is composed of the first V-shaped Theelement 160A is mixed with the second V-shapedelement 160B (44 degrees/44 degrees); the straight V-shapedstructure group 240 is formed by the second V-shapedelement 160B and the third V-shapedelement 160C (44 degrees/44 degrees). 44 degrees), wherein the first V-shapedelement 160A and the third V-shapedelement 160C are V-shaped elements of the same type.

单灯架构single light architecture

当第一侧面110为导光板100的唯一入光面时，即背光模块为单灯架构，则直条状V型结构组210、220、230、240和250的第一底角平均值可由基板102的中间位置逐渐变小至第二侧面120，如表二所示。When thefirst side 110 is the only light-incident surface of thelight guide plate 100, that is, the backlight module is a single-lamp structure, the average value of the first bottom angles of the straight V-shapedstructure groups 210, 220, 230, 240, and 250 can be determined by the substrate The middle position of 102 gradually decreases to thesecond side 120, as shown in Table 2.

表二Table II

其中第二底角平均值为直条状V型结构组210(第一侧面110)逐渐变小至直条状V型结构组230(中间位置)，再逐渐变大至直条状V型结构组250(第二侧面120)。The average value of the second bottom angle is that the straight V-shaped structure group 210 (first side 110) gradually decreases to the straight V-shaped structure group 230 (middle position), and then gradually increases to the straight V-shaped structure Group 250 (second side 120).

请参照图2B和表二，直条状V型结构组210是由第一V型元件160A(5度/40度)所组成；直条状V型结构组230是由第二V型元件160B(5度/30度)所组成；直条状V型结构组250是由第三V型元件160C(2度/36度)所组成；直条状V型结构组220是由第一V型元件160A和第二V型元件160B混搭而成(5度/35度)；直条状V型结构组240是由第二V型元件160B和第三V型元件160C混搭而成(3.5度/33度)。Please refer to Figure 2B and Table 2, the straight V-shapedstructure group 210 is composed of the first V-shapedelement 160A (5 degrees/40 degrees); the straight V-shapedstructure group 230 is composed of the second V-shapedelement 160B (5 degrees/30 degrees); the straight V-shapedstructure group 250 is composed of the third V-shapedelement 160C (2 degrees/36 degrees); the straight V-shapedstructure group 220 is composed of the first V-shaped Theelement 160A and the second V-shapedelement 160B are mixed and matched (5 degrees/35 degrees); the straight V-shapedstructure group 240 is formed by mixing and matching the second V-shapedelement 160B and the third V-shapedelement 160C (3.5 degrees/35 degrees). 33 degrees).

此外，当背光模块为单灯架构时，直条状V型结构组210、220、230、240和250的第一底角平均值均相同，且其第二底角平均值也可由基板102的中间位置逐渐变小至第二侧面120，如表三所示。In addition, when the backlight module is a single-lamp structure, the average values of the first base angles of the straight V-shapedstructure groups 210, 220, 230, 240, and 250 are all the same, and the average values of the second base angles can also be obtained from thebase plate 102. The middle position gradually decreases to thesecond side 120, as shown in Table 3.

表三Table three

其中第二底角平均值为直条状V型结构组210(第一侧面110)逐渐变小至直条状V型结构组230(中间位置)，再逐渐变小至直条状V型结构组250(第二侧面120)。The average value of the second bottom angle is that the straight V-shaped structure group 210 (first side 110) gradually decreases to the straight V-shaped structure group 230 (middle position), and then gradually decreases to the straight V-shaped structure Group 250 (second side 120).

请参照图2B和表三，直条状V型结构组210是由第一V型元件160A(3.5度/40度)所组成；直条状V型结构组230是由第二V型元件160B(3.5度/38度)所组成；直条状V型结构组250是由第三V型元件160C(3.5度/36度)所组成；直条状V型结构组220是由第一V型元件160A和第二V型元件160B混搭而成(3.5度/39度)；直条状V型结构组240是由第二V型元件160B和第三V型元件160C混搭而成(3.5度/37度)。Please refer to FIG. 2B and Table 3, the straight V-shapedstructure group 210 is composed of the first V-shapedelement 160A (3.5 degrees/40 degrees); the straight V-shapedstructure group 230 is composed of the second V-shapedelement 160B (3.5 degrees/38 degrees); the straight V-shapedstructure group 250 is composed of the third V-shapedelement 160C (3.5 degrees/36 degrees); the straight V-shapedstructure group 220 is composed of the first V-shaped Theelement 160A is mixed with the second V-shapedelement 160B (3.5 degrees/39 degrees); the straight V-shapedstructure group 240 is formed by the second V-shapedelement 160B and the third V-shapedelement 160C (3.5 degrees/39 degrees). 37 degree).

设计原则IIDesign Principle II

此设计原则是根据直条状V型结构组的最小底角平均值的变化，其中最小底角平均值分别为直条状V型结构组中的V型元件的第一底角平均值与第二底角平均值的最小值。例如：直条状V型结构组的第一底角平均值/第二底角平均值为3.5度/40度时，则其最小底角平均值为3.5度。This design principle is based on the change of the average value of the minimum base angle of the straight V-shaped structure group, wherein the average value of the minimum base angle is the average value of the first base angle and the average value of the first base angle of the V-shaped elements in the straight V-shaped structure group. The minimum value of the mean value of the two base angles. For example: when the average value of the first base angle/the average value of the second base angle of the straight V-shaped structure group is 3.5 degrees/40 degrees, then the average value of the minimum base angle is 3.5 degrees.

请参照图3，其绘示本发明的又一实施例的直条状V型结构组的示意图。如图3所示，本实施例的直条状V型结构组包含：第一V型结构组310、第二V型结构组320、第三V型结构组330、第四V型结构组340、第五V型结构组350和第六V型结构组360。第一V型结构组310平行于第一侧面110，而第二V型结构组位于第一侧面110与第一V型结构组310之间，其中第一V型结构组310的最小底角平均值小于第二V型结构组320的最小底角平均值。第一V型结构组310位于第三V型结构组330与第二V型结构组320之间，而第一V型结构组310的最小底角平均值小于第三V型结构组330的最小底角平均值。Please refer to FIG. 3 , which shows a schematic diagram of a straight V-shaped structure group according to another embodiment of the present invention. As shown in Figure 3, the straight V-shaped structure group in this embodiment includes: a first V-shapedstructure group 310, a second V-shapedstructure group 320, a third V-shapedstructure group 330, and a fourth V-shapedstructure group 340 , the fifth V-shapedstructure group 350 and the sixth V-shapedstructure group 360 . The first V-shapedstructure group 310 is parallel to thefirst side 110, and the second V-shaped structure group is located between thefirst side 110 and the first V-shapedstructure group 310, wherein the minimum base angle of the first V-shapedstructure group 310 is average The value is smaller than the average minimum base angle of the second V-shapedstructure group 320 . The first V-shapedstructure group 310 is located between the third V-shapedstructure group 330 and the second V-shapedstructure group 320, and the average value of the minimum base angle of the first V-shapedstructure group 310 is smaller than the minimum value of the third V-shapedstructure group 330. Base angle average.

在本实施例中，基板具有第一平行区10、第一混搭区20、第二平行区30、第二混搭区40和第三平行区50。第一平行区10位于第一侧面110与第一混搭区20之间，第二V型结构组320位于第一平行区10中，第一V型结构组310位于第一混搭区20中，而第四V型结构组340位于第一混搭区20中，其中第四V型结构组340的最小底角平均值小于第二V型结构组320的最小底角平均值，且第四V型结构组340与第一V型结构组310为交错设置。第三V型结构组330位于第二平行区30中，其中第三V型结构组330的最小底角平均值分别小于第一V型结构组310的最小底角平均值及第四V型结构组340的最小底角平均值。第二V型结构组320位于第二侧面120与第二平行区30之间，而第五V型结构组350位于第二混搭区40中，其中第五V型结构组350的最小底角平均值小于第三V型结构组330的最小底角平均值。第三平行区50位于第二侧面与第二混搭区之间，而第六V型结构组360位于第三平行区50中，其中第六V型结构组360的最小底角平均值小于第五V型结构组350的最小底角平均值。In this embodiment, the substrate has a firstparallel region 10 , afirst mashup region 20 , a secondparallel region 30 , asecond mashup region 40 and a thirdparallel region 50 . The firstparallel area 10 is located between thefirst side 110 and the first mash-up area 20, the second V-shapedstructure group 320 is located in the firstparallel area 10, the first V-shapedstructure group 310 is located in the first mash-up area 20, and The fourth V-shapedstructure group 340 is located in the first mix-and-match area 20, wherein the average minimum base angle of the fourth V-shapedstructure group 340 is smaller than the minimum base angle average value of the second V-shapedstructure group 320, and the fourth V-shaped structure Thegroups 340 and the first V-shapedstructure groups 310 are arranged alternately. The third V-shapedstructure group 330 is located in the secondparallel region 30, wherein the average value of the minimum base angle of the third V-shapedstructure group 330 is respectively smaller than the average value of the minimum base angle of the first V-shapedstructure group 310 and the average value of the fourth V-shaped structure. Minimum base angle average forgroup 340. The second V-shapedstructure group 320 is located between thesecond side 120 and the secondparallel region 30, and the fifth V-shapedstructure group 350 is located in thesecond mashup region 40, wherein the minimum base angles of the fifth V-shapedstructure group 350 are averaged The value is smaller than the average minimum base angle of the third V-shapedstructure group 330 . The thirdparallel area 50 is located between the second side and the second mash-up area, and the sixth V-shapedstructure group 360 is located in the thirdparallel area 50, wherein the average value of the minimum base angle of the sixth V-shapedstructure group 360 is smaller than the fifth The minimum base angle average value of the V-shapedstructure group 350 .

设计原则IIIDesign Principle III

此设计原则是根据直条状V型结构组的最大底角平均值的变化，其中最大底角平均值分别为直条状V型结构组中的V型元件的第一底角平均值与第二底角平均值的最大值。例如：直条状V型结构组的第一底角平均值/第二底角平均值为3.5度/40度时，则其最大底角平均值为40度。This design principle is based on the change of the average value of the maximum base angle of the straight V-shaped structure group, wherein the average value of the maximum base angle is the average value of the first base angle and the average value of the first base angle of the V-shaped elements in the straight V-shaped structure group. The maximum value of the mean value of the two base angles. For example: when the average value of the first base angle/the average value of the second base angle of the straight V-shaped structure group is 3.5 degrees/40 degrees, then the average value of the maximum base angle is 40 degrees.

本实施例的直条状V型结构组与平行区及混搭区的排列方式与设计原则II相同，故不在此赘述。与设计原则II不同的是，第一V型结构组310的最大底角平均值小于第二V型结构组320的最大底角平均值；第一V型结构组310的最大底角平均值小于第三V型结构组330的最大底角平均值；第三V型结构组330的最大底角平均值分别小于第一V型结构组310的最大底角平均值及第四V型结构组340的最大底角平均值；第四V型结构组340的最大底角平均值小于第二V型结构组320的最大底角平均值；第五V型结构组350的最大底角平均值小于第三V型结构组330的最大底角平均值；第六V型结构组360的最大底角平均值小于第五V型结构组350的最大底角平均值。The arrangement of the straight V-shaped structure group, the parallel area and the mixed area in this embodiment is the same as that of Design Principle II, so it will not be repeated here. Different from design principle II, the average value of the maximum base angle of the first V-shapedstructure group 310 is less than the average value of the maximum base angle of the second V-shapedstructure group 320; the average value of the maximum base angle of the first V-shapedstructure group 310 is less than The average value of the maximum base angle of the third V-shapedstructure group 330; the average value of the maximum base angle of the third V-shapedstructure group 330 is respectively smaller than the average value of the maximum base angle of the first V-shapedstructure group 310 and the fourth V-shapedstructure group 340 The average value of the maximum base angle; the average value of the maximum base angle of the fourth V-shapedstructure group 340 is less than the average value of the maximum base angle of the second V-shapedstructure group 320; the average value of the maximum base angle of the fifth V-shapedstructure group 350 is less than The average maximum base angles of the three V-shapedstructure groups 330 ;

请参照图4，其绘示应用本发明的实施例的背光模块的光型示意图。首先，第一光源170和/或第二光源180发射出光线至导光板100，经V型元件160反射至扩散板188后，再进入光学膜片190。如图4所示，导光板上前中后各区至光学膜片190的光入射角度θ₁、θ₂、θ₃的相当接近，即可产生一致的光入射角度，因而可满足光学膜片190的最佳光入射角度的要求。此外，本发明的实施例还可有效地以提高出光亮度。Please refer to FIG. 4 , which shows a schematic diagram of the light pattern of the backlight module applying the embodiment of the present invention. Firstly, the light emitted from the firstlight source 170 and/or the secondlight source 180 to thelight guide plate 100 is reflected by the V-shapedelement 160 to thediffusion plate 188 and then enters theoptical film 190 . As shown in FIG. 4 , the light incident angles θ₁ , θ₂ , and θ₃ from the front, middle, and rear areas of the light guide plate to theoptical film 190 are quite close to each other, so that a consistent light incident angle can be produced, thus satisfying the requirements of theoptical film 190. The requirements for the best light incident angle. In addition, the embodiments of the present invention can also effectively improve the brightness of the emitted light.

虽然本发明已以具体实施方式披露如上，然而所述具体实施方式并非用以限定本发明，任何本领域普通技术人员在不脱离本发明的精神和范围的情况下，应能够作各种更改与修饰，因此本发明的保护范围应以如附的权利要求书所界定的范围为准。Although the present invention has been disclosed above with specific implementations, the specific implementations are not intended to limit the present invention, and any person skilled in the art should be able to make various modifications and changes without departing from the spirit and scope of the present invention. Modifications, therefore, the scope of protection of the present invention shall prevail as defined by the appended claims.

Claims (10)

1. LGP with V-structure comprises:

One substrate has one first side and one second side relative with this first side, and wherein this first side is an incidence surface; And

A plurality of vertical bar shape V-structure groups; Wherein each said vertical bar shape V-structure group is made up of at least one V-type element; Two inclined-planes and this level of base plate face of each said at least one V-type element are formed with one first base angle and one second base angle; This first base angle than this second base angle near this first side; Said a plurality of vertical bar shape V-structure group has a plurality of first base angle mean values, a plurality of second base angle mean value and a plurality of minimum base angle mean value respectively; Said a plurality of first base angle mean value is respectively the mean value at first base angle of the V-type element in said a plurality of vertical bar shape V-structure group; Said a plurality of second base angle mean value is respectively the mean value at second base angle of the V-type element in said a plurality of vertical bar shape V-structure group, and said a plurality of minimum base angle mean values are respectively the first base angle mean value of the V-type element in said a plurality of vertical bar shape V-structure group and the minimum of a value of the second base angle mean value, and said a plurality of vertical bar shape V-structure groups comprise:

One first V-structure group is parallel to this first side; And

One second V-structure group, between this first side and this first V-structure group, wherein the minimum base angle mean value of this first V-structure group is less than the minimum base angle mean value of this second V-structure group.

2. the LGP with V-structure as claimed in claim 1, wherein said a plurality of vertical bar shape V-structure groups also comprise respectively:

One the 3rd V-structure group, wherein this first V-structure group is between the 3rd V-structure group and this second V-structure group, and the minimum base angle mean value of this first V-structure group is less than the minimum base angle mean value of the 3rd V-structure group.

3. the LGP with V-structure as claimed in claim 2; Wherein this substrate has one first mixed district and one first parallel zone taken; This first parallel zone is this first side and this first mixed taking between the district; This second V-structure group is arranged in this first parallel zone, and this first V-structure group is arranged in this first mixes and to take the district, and said a plurality of vertical bar shape V-structure groups also comprise respectively:

One the 4th V-structure group is arranged in this and first mixes and to take the district, and wherein the minimum base angle mean value of the 4th V-structure group is less than the minimum base angle mean value of this second V-structure group, and the 4th V-structure group and this first V-structure group are for being crisscross arranged.

4. the LGP with V-structure as claimed in claim 1, wherein this second side of this substrate is another incidence surface.

5. LGP with V-structure comprises:

One substrate has one first side and one second side relative with this first side, and wherein this first side is an incidence surface; And

A plurality of vertical bar shape V-structure groups; Wherein each said vertical bar shape V-structure group is made up of at least one V-type element; Two inclined-planes and this level of base plate face of each said at least one V-type element are formed with one first base angle and one second base angle; This first base angle than this second base angle near this first side; Said a plurality of vertical bar shape V-structure group has a plurality of first base angle mean values, a plurality of second base angle mean value and a plurality of maximum base angles mean value respectively; Said a plurality of first base angle mean value is respectively the mean value at first base angle of the V-type element in said a plurality of vertical bar shape V-structure group; Said a plurality of second base angle mean value is respectively the mean value at second base angle of the V-type element in said a plurality of vertical bar shape V-structure group, and said a plurality of maximum base angles mean value is respectively the first base angle mean value of the V-type element in said a plurality of vertical bar shape V-structure group and the maximum of the second base angle mean value, and said a plurality of vertical bar shape V-structure groups comprise respectively:

One first V-structure group is parallel to this first side; And

One second V-structure group, between this first side and this first V-structure group, wherein the maximum base angle mean value of this first V-structure group is less than the maximum base angle mean value of this second V-structure group.

6. the LGP with V-structure as claimed in claim 5, wherein said a plurality of vertical bar shape V-structure groups also comprise respectively:

One the 3rd V-structure group, wherein this first V-structure group is between the 3rd V-structure group and this second V-structure group, and the maximum base angle mean value of this first V-structure group is less than the maximum base angle mean value of the 3rd V-structure group.

7. the LGP with V-structure as claimed in claim 6; Wherein this substrate has one first mixed district and one first parallel zone taken; This first parallel zone is this first side and this first mixed taking between the district; This second V-structure group is arranged in this first parallel zone, and this first V-structure group is arranged in this first mixes and to take the district, and said a plurality of vertical bar shape V-structure groups also comprise respectively:

One the 4th V-structure group is arranged in this and first mixes and to take the district, and wherein the maximum base angle mean value of the 4th V-structure group is less than the maximum base angle mean value of this second V-structure group, and the 4th V-structure group and this first V-structure group are for being crisscross arranged.

8. the LGP with V-structure as claimed in claim 5, wherein this second side of this substrate is another incidence surface.

9. backlight module comprises:

Like claim 1 or 5 described a kind of LGPs with V-structure;

One blooming piece is arranged at the top of an exiting surface of this LGP; And

One first light source is adjacent to this first side of this LGP.

10. backlight module as claimed in claim 9 also comprises:

One secondary light source is adjacent to this second side of this LGP.

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