TWM521195U - Light guiding plate, backlight module, and display device - Google Patents
Light guiding plate, backlight module, and display device Download PDFInfo
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Abstract
Description
本創作係有關於一種導光材。更具體地來說，本創作係關於一種具有點狀微結構和條狀微結構的導光材。 This creation is about a light guide. More specifically, the present invention relates to a light guide material having a dot microstructure and a strip microstructure.
背光模組(Backlight Module,BLM)為顯示裝置之重要零組件之一。由於顯示裝置中的顯示面板(例如液晶顯示面板)本身不會發光，因此必須透過背光模組的發光源投射光線，以達到顯示之功能。 The Backlight Module (BLM) is one of the important components of the display device. Since the display panel (for example, the liquid crystal display panel) in the display device does not emit light by itself, it is necessary to project light through the light source of the backlight module to achieve the function of display.
背光模組依發光源的位置分成側光式(Edge Type)和直下式(Direct Type)兩種結構，其中側光式結構是將發光源設置於導光材側邊，為了改變出光方向，導光材通常會具有破壞全反射的導光結構，然而習知的導光結構指向性較高，因此熱點(hot spot)會明顯地顯現出來。 The backlight module is divided into an edge type (Edge Type) and a direct type (Direct Type) according to the position of the light source, wherein the side light type structure is to set the light source on the side of the light guide material, in order to change the light exit direction, Light materials usually have a light guiding structure that destroys total reflection. However, conventional light guiding structures have high directivity, so hot spots are clearly visible.
為了解決上述習知之問題點，本創作提供一種導光材，包括一本體、複數個點狀微結構以及複數個條狀微結構。點狀微結構分離地形成於本體上。條狀微結構則形成於點狀微結構之表面，且各個條狀微結構的稜線是斷續不規則的排列。 In order to solve the above problems, the present invention provides a light guiding material comprising a body, a plurality of dot-shaped microstructures and a plurality of strip-shaped microstructures. The dot-like microstructures are formed separately on the body. Strip microstructures are formed on the surface of the dot-like microstructure, and the ridgelines of the individual strip-shaped microstructures are intermittently arranged irregularly.
本創作一實施例中，前述條狀微結構至少有一部分是沿一第一方向延伸設置。 In an embodiment of the present invention, at least a portion of the strip-shaped microstructures are extended along a first direction.
本創作一實施例中，前述條狀微結構至少有另一部分是沿一第二方向延伸設置，且前述第一方向相異於第二方向。 In an embodiment of the present invention, at least another portion of the strip-shaped microstructure is extended along a second direction, and the first direction is different from the second direction.
本創作一實施例中，前述條狀微結構分別具有相異的外形。 In an embodiment of the present invention, the strip-shaped microstructures have different shapes.
本創作一實施例中，前述本體具有一第一側和一第二側，第一側鄰近一發光源並相反於第二側。前述點狀微結構之數量是從靠近前述第一側朝向靠近欠數第二側的方向逐漸增加。 In an embodiment of the present invention, the body has a first side and a second side, and the first side is adjacent to a light source and opposite to the second side. The number of the aforementioned point-like microstructures gradually increases from the first side toward the first side toward the second side.
本創作一實施例中，前述本體具有一入光面、一反射面和一出光面，入光面朝向一發光源並連接反射面和出光面，且前述點狀微結構形成於反射面上。 In an embodiment of the present invention, the body has a light incident surface, a reflective surface, and a light exiting surface. The light incident surface faces a light emitting source and connects the reflective surface and the light emitting surface, and the dot microstructure is formed on the reflective surface.
本創作一實施例中，前述本體具有一入光面、一反射面和一出光面，入光面朝向一發光源並連接反射面和出光面，且前述點狀微結構形成於出光面上。 In an embodiment of the present invention, the body has a light incident surface, a reflective surface, and a light exiting surface. The light incident surface faces a light emitting source and connects the reflecting surface and the light emitting surface, and the dot microstructure is formed on the light emitting surface.
本創作一實施例中，前述點狀微結構的粗糙度(arithmetic mean roughness,Ra)是介於1~999nm之間，不包含端點值。 In an embodiment of the present invention, the roughness of the point microstructure (Ra) is between 1 and 999 nm, and does not include an endpoint value.
本創作一實施例更提供一種背光模組，包括前述導光材和一發光源，其中發光源發出之光線進入導光材，並被條狀微結構反射或折射後離開導光材。 An embodiment of the present invention further provides a backlight module, comprising the foregoing light guide material and a light source, wherein the light emitted by the light source enters the light guide material and is reflected or refracted by the strip microstructure to leave the light guide material.
本創作一實施例更提供一種顯示裝置，包括前述 背光模組和一顯示面板，其中顯示面板是位於導光材之本體的前方。 An embodiment of the present invention further provides a display device, including the foregoing The backlight module and a display panel, wherein the display panel is located in front of the body of the light guide material.
10‧‧‧導光材 10‧‧‧Light guide
20‧‧‧發光源 20‧‧‧Light source
100‧‧‧本體 100‧‧‧ body
101‧‧‧入光面 101‧‧‧Into the glossy surface
102‧‧‧反射面 102‧‧‧reflecting surface
103‧‧‧出光面 103‧‧‧Glossy surface
104‧‧‧第一側 104‧‧‧ first side
105‧‧‧第二側 105‧‧‧ second side
106‧‧‧平行區塊 106‧‧‧Parallel blocks
110‧‧‧點狀微結構 110‧‧‧ point microstructure
120‧‧‧條狀微結構 120‧‧‧ strip microstructure
A1‧‧‧第一方向 A1‧‧‧ first direction
A2‧‧‧第二方向 A2‧‧‧ second direction
B‧‧‧背光模組 B‧‧‧Backlight module
D‧‧‧顯示面板 D‧‧‧ display panel
第1圖係表示本創作一實施例之背光模組示意圖。 FIG. 1 is a schematic view showing a backlight module according to an embodiment of the present invention.
第2A圖係表示第1圖所示之背光模組的仰視圖。 Fig. 2A is a bottom view showing the backlight module shown in Fig. 1.
第2B圖係表示本創作另一實施例之背光模組示意圖。 2B is a schematic view showing a backlight module of another embodiment of the present invention.
第2C圖係表示本創作另一實施例之背光模組示意圖。 2C is a schematic view showing a backlight module of another embodiment of the present invention.
第2D圖係表示本創作另一實施例之背光模組示意圖。 2D is a schematic diagram of a backlight module according to another embodiment of the present invention.
第3圖係表示光線由入光面進入導光材並由出光面離開導光材示意圖。 Figure 3 is a schematic view showing that light enters the light guide material from the light incident surface and exits the light guide material from the light exit surface.
第4圖係表示本創作另一實施例之背光模組示意圖。 Figure 4 is a schematic view showing a backlight module of another embodiment of the present invention.
第5圖係表示本創作一實施例之顯示裝置示意圖。 Fig. 5 is a view showing a display device of an embodiment of the present invention.
以下說明本創作實施例之導光材、背光模組和顯示裝置。然而，可輕易了解本創作實施例提供許多合適的創作概念而可實施於廣泛的各種特定背景。所揭示的特定實施例僅僅用於說明以特定方法使用本創作，並非用以侷限本創作的範圍。 The light guide material, the backlight module, and the display device of the present embodiment will be described below. However, it will be readily appreciated that the present creative embodiment provides many suitable creative concepts and can be implemented in a wide variety of specific contexts. The specific embodiments disclosed are merely illustrative of the use of the present invention in a particular way, and are not intended to limit the scope of the present invention.
能理解的是，雖然在此可使用用語「第一」、「第二」等來敘述各種元件、組成成分、區域、層、及/或部分，這些元件、組成成分、區域、層、及/或部分不應被這些用語限定，且這些用語僅是用來區別不同的元件、組成成分、區域、層、及/或部分。 It will be understood that the terms "first", "second", and the like may be used to describe various elements, components, regions, layers, and/or portions, such elements, components, regions, layers, and / The terms are not limited by the terms, and are used to distinguish different elements, components, regions, layers, and/or parts.
首先請參閱第1圖，本創作一實施例之背光模組B主要包括一導光材10和一發光源20，其中導光材10之本體100具有一入光面101、一反射面102和一出光面103，入光面101連接反射面102和出光面103並朝向前述發光源20，因此發光源20產生之光線可穿過入光面101並大致沿一第一方向A1進入導光材10中。前述發光源20例如可包括複數個發光二極體(light emitting diode,LED)或冷陰極螢光燈管(cold cathode fluorescent lamp,CCFL)。 Referring to FIG. 1 , the backlight module B of the embodiment of the present invention mainly includes a light guide member 10 and a light source 20 , wherein the body 100 of the light guide member 10 has a light incident surface 101 , a reflective surface 102 , and a light-emitting surface 103, the light-incident surface 101 is connected to the reflective surface 102 and the light-emitting surface 103 and faces the light-emitting source 20, so that the light generated by the light-emitting source 20 can pass through the light-incident surface 101 and enter the light guide material substantially along a first direction A1. 10 in. The light source 20 may include, for example, a plurality of light emitting diodes (LEDs) or cold cathode fluorescent lamps (CCFLs).
如第1、2A圖所示，於本實施例中，本體100的反射面102上形成有複數個點狀微結構110，凸出於前述反射面102。這些點狀微結構110彼此之間相互分離，且每個點狀微結構110之表面上更形成有複數個彼此分離的條狀微結構120。應注意的是，在每個點狀微結構110中，前述條狀微結構120係至少有一部分是沿第一方向A1彼此間隔地設置，且至少有另一部分是沿一第二方向A2彼此間隔地設置，其中第一方向A1相異於第二方向A2，例如彼此垂直。 As shown in FIGS. 1 and 2A, in the present embodiment, a plurality of dot-shaped microstructures 110 are formed on the reflecting surface 102 of the body 100, and protrude from the reflecting surface 102. The dot-like microstructures 110 are separated from each other, and a plurality of strip-shaped microstructures 120 separated from each other are further formed on the surface of each of the dot-like microstructures 110. It should be noted that in each of the dot microstructures 110, at least a portion of the strip-like microstructures 120 are spaced apart from each other along the first direction A1, and at least another portion is spaced apart from each other along a second direction A2. The ground direction is set such that the first direction A1 is different from the second direction A2, for example, perpendicular to each other.
需特別說明的是，條狀微結構120可藉由雷射或蝕刻形成，其粗糙度(arithmetic mean roughness,Ra)是介於1~999nm之間(不包含端點值)，且每個條狀微結構120可具有相異的外形和尺寸。 It should be particularly noted that the strip microstructure 120 can be formed by laser or etching, and its roughness mean roughness (Ra) is between 1 and 999 nm (excluding the endpoint value), and each strip The microstructures 120 can have different shapes and sizes.
於本實施例中，各個條狀微結構120皆是沿第一方向A1延伸，然而於一些實施例中，條狀微結構120亦可朝其他方向延伸。如第2B圖所示，在本創作另一實施例中，各個條狀微結構120皆沿第二方向A2延伸。如第2C圖所示，本創作又一 實施例中，部分條狀微結構120沿第一方向A1延伸，且部分條狀微結構120沿第二方向A2延伸。又如第2D圖所示，於本創作另一實施例中，條狀微結構120亦可朝斜向方向延伸。 In this embodiment, each of the strip-shaped microstructures 120 extends in the first direction A1. However, in some embodiments, the strip-shaped microstructures 120 may also extend in other directions. As shown in FIG. 2B, in another embodiment of the present invention, each of the strip-shaped microstructures 120 extends in the second direction A2. As shown in Figure 2C, this creation is another In an embodiment, a portion of the strip-shaped microstructures 120 extend in a first direction A1 and a portion of the strip-shaped microstructures 120 extend in a second direction A2. As also shown in FIG. 2D, in another embodiment of the present invention, the strip-shaped microstructures 120 may also extend in an oblique direction.
請繼續參閱第2A~2D圖，位於導光材10之本體100相反側的第一側104和第二側105之間可定義複數個相同尺寸的平行區塊106，其中第一側104鄰近前述發光源20。每個平行區塊106內包含有相異數量的點狀微結構110，距離發光源20較遠的平行區塊106所包含的點狀微結構110較多，而距離發光源20較近的平行區塊106所包含的點狀微結構110較少，亦即點狀微結構110之數量是從靠近導光材10之第一側104朝向靠近第二側105的方向逐漸增加。此外，於本實施例中，每個平行區塊106內的點狀微結構110為平均地設置，故各個平行區塊106內的點狀微結構110彼此之間具有相同間隔。 Referring to FIGS. 2A-2D, a plurality of parallel blocks 106 of the same size may be defined between the first side 104 and the second side 105 on the opposite side of the body 100 of the light guide material 10, wherein the first side 104 is adjacent to the foregoing The light source 20 is emitted. Each of the parallel blocks 106 includes a different number of dot-like microstructures 110. The parallel blocks 106 farther from the light source 20 contain more dot-like microstructures 110, and are closer to the light source 20. The block 106 contains fewer point-like microstructures 110, i.e., the number of spot-like microstructures 110 gradually increases from a first side 104 adjacent the light guide 10 toward a second side 105. Moreover, in the present embodiment, the dot-like microstructures 110 in each of the parallel blocks 106 are evenly disposed, so that the dot-like microstructures 110 in the respective parallel blocks 106 have the same spacing from each other.
如3圖所示，發光源20產生之部分光線穿過入光面101進入導光材10後，會於反射面102和出光面103之間不斷地全反射，而這些光線接觸到反射面102上的點狀微結構110以及點狀微結構110表面的條狀微結構120後，光線的反射角度會被改變，因此可破壞前述全反射而使光線由出光面103離開導光材10。 As shown in FIG. 3, after a part of the light generated by the light source 20 passes through the light incident surface 101 and enters the light guide material 10, it is continuously totally reflected between the reflective surface 102 and the light exit surface 103, and the light contacts the reflective surface 102. After the dot microstructure 110 on the surface and the strip microstructure 120 on the surface of the dot microstructure 110, the angle of reflection of the light is changed, so that the total reflection can be destroyed to cause the light to exit the light guide 10 from the light exit surface 103.
由於條狀微結構120具有奈米結構(粗糙度介於1~999nm)，且條狀微結構120的稜線是斷續不規則的排列(條狀微結構120沿第一、第二方向A1、A2皆為間隔地設置)，因此可有效地降低光的指向性，使混光效果提高，進而改善光場視角並且避免熱點(hot spot)。再者，由於點狀微結構110之數量是 從靠近第一側104朝向靠近第二側105的方向逐漸增加，因此可使出光面103各個部位離開的光線大致相同，使整體的出光效果均勻化，避免靠近發光源20的部分較亮而遠離之部分較暗之情形。 Since the strip-shaped microstructures 120 have a nanostructure (roughness between 1 and 999 nm), and the ridgelines of the strip-shaped microstructures 120 are intermittently arranged irregularly (the strip-shaped microstructures 120 are along the first and second directions A1). A2 is set at intervals, so that the directivity of light can be effectively reduced, the light mixing effect is improved, and the light field angle of view is improved and hot spots are avoided. Furthermore, since the number of dot microstructures 110 is The light is gradually increased from the first side 104 toward the second side 105, so that the light rays exiting from the respective portions of the light-emitting surface 103 are substantially the same, so that the overall light-emitting effect is uniformized, and the portion close to the light-emitting source 20 is prevented from being brighter and farther away. Part of the darker situation.
雖然本創作前述實施例中之點狀微結構110係形成於本體100之反射面102上並凸出前述反射面102，但點狀微結構110仍可依使用者需求而調整其形狀和位置。舉例而言，如第4圖所示，於本創作另一實施例中，點狀微結構110可形成於出光面103上，因此部分光線接觸到點狀微結構110後可直接穿過點狀微結構110而離開導光材10。於一些實施例中，點狀微結構110可同時形成於反射面102和出光面103。於一些實施例中，點狀微結構110可為形成於反射面102或出光面103之凹陷部，亦即朝導光材10內部凹陷而未凸出前述反射面102或出光面103。 Although the dot-like microstructures 110 in the foregoing embodiments are formed on the reflective surface 102 of the body 100 and protrude from the reflective surface 102, the dot-shaped microstructures 110 can be adjusted in shape and position according to user requirements. For example, as shown in FIG. 4, in another embodiment of the present invention, the dot-like microstructures 110 may be formed on the light-emitting surface 103, so that part of the light may directly pass through the dots after contacting the dot-shaped microstructures 110. The microstructures 110 exit the light guide 10. In some embodiments, the dot microstructures 110 can be formed on both the reflective surface 102 and the light exit surface 103. In some embodiments, the dot-like microstructures 110 may be recessed portions formed on the reflective surface 102 or the light-emitting surface 103, that is, recessed toward the inside of the light guide material 10 without protruding the reflective surface 102 or the light-emitting surface 103.
請參閱第5圖，本創作一實施例之顯示裝置包括前述背光模組B和一顯示面板D，其中顯示面板D位於導光材10之本體100前方，出光面103朝向顯示面板D，因此由出光面103離開具有充足亮度且分布均勻的光線可提供至顯示面板D，使其能夠正常顯示影像。前述顯示面板D例如可包括玻璃基板、彩色濾光片、液晶和偏光板等元件。 Referring to FIG. 5 , the display device of the present embodiment includes the backlight module B and a display panel D. The display panel D is located in front of the body 100 of the light guide 10 , and the light exit surface 103 faces the display panel D. The light exiting surface 103 leaves light having a sufficient brightness and a uniform distribution to be provided to the display panel D so that it can display an image normally. The aforementioned display panel D may include, for example, a glass substrate, a color filter, a liquid crystal, and a polarizing plate.
綜上所述，本創作提供一種導光材，由於點狀微結構之配置數量以遠離發光源之方向逐漸增加，因此可使出光效果均勻化，避免靠近發光源處出光較多而導致側邊較亮的情形。其次，藉由點狀微結構和在點狀微結構表面上形成的條狀 微結構，可破壞光線於導光材內的全反射，使光線可由出光面離開導光材。再者，各個條狀微結構的稜線是斷續不規則的排列，因此可改善光場視角、提升混光性並減少熱點的發生。 In summary, the present invention provides a light guide material. Since the number of arrangement of the dot-shaped microstructures is gradually increased away from the light source, the light-emitting effect can be made uniform, and the light is prevented from being emitted near the light source. Brighter situation. Secondly, by a point-like microstructure and a strip formed on the surface of the point-like microstructure The microstructure can destroy the total reflection of light in the light guide material, so that the light can exit the light guide material from the light exit surface. Moreover, the ridge lines of the strip-like microstructures are intermittently arranged irregularly, thereby improving the viewing angle of the light field, improving the light mixing property, and reducing the occurrence of hot spots.
雖然本創作的實施例及其優點已揭露如上，但應該瞭解的是，任何所屬技術領域中具有通常知識者，在不脫離本創作之精神和範圍內，當可作更動、替代與潤飾。此外，本創作之保護範圍並未侷限於說明書內所述特定實施例中的製程、機器、製造、物質組成、裝置、方法及步驟，任何所屬技術領域中具有通常知識者可從本創作揭示內容中理解現行或未來所發展出的製程、機器、製造、物質組成、裝置、方法及步驟，只要可以在此處所述實施例中實施大抵相同功能或獲得大抵相同結果皆可根據本創作使用。因此，本創作之保護範圍包括上述製程、機器、製造、物質組成、裝置、方法及步驟。另外，每一申請專利範圍構成個別的實施例，且本創作之保護範圍也包括各個申請專利範圍及實施例的組合。 Although the embodiments of the present invention and its advantages have been disclosed as above, it should be understood that those skilled in the art can make changes, substitutions and refinements without departing from the spirit and scope of the present invention. In addition, the scope of protection of the present invention is not limited to the processes, machines, manufacturing, material compositions, devices, methods, and steps in the specific embodiments described in the specification, and any one of ordinary skill in the art may disclose the present disclosure. It is understood that the processes, machines, manufactures, compositions, devices, methods, and steps that are presently or in the future can be used in accordance with the present invention as long as they can perform substantially the same function or achieve substantially the same results in the embodiments described herein. Therefore, the scope of protection of the present invention includes the above processes, machines, manufacturing, material compositions, devices, methods and steps. In addition, each patent application scope constitutes an individual embodiment, and the scope of protection of the present invention also includes the combination of each patent application scope and embodiment.
雖然本創作以前述數個較佳實施例揭露如上，然其並非用以限定本創作。本創作所屬技術領域中具有通常知識者，在不脫離本創作之精神和範圍內，當可做些許之更動與潤飾。因此，本創作之保護範圍當視後附之申請專利範圍所界定者為準。除此之外，每個申請專利範圍建構成一獨立的實施例，且各種申請專利範圍及實施例之組合皆介於本創作之範圍內。 Although the present invention has been disclosed above in the foregoing several preferred embodiments, it is not intended to limit the present invention. Those who have ordinary knowledge in the technical field of the present invention can make some changes and refinements without departing from the spirit and scope of the present creation. Therefore, the scope of protection of this creation is subject to the definition of the scope of the patent application. In addition, each of the patent application scopes constitutes a separate embodiment, and the scope of the various patent applications and combinations of the embodiments are all within the scope of the present invention.
20‧‧‧發光源 20‧‧‧Light source
100‧‧‧本體 100‧‧‧ body
102‧‧‧反射面 102‧‧‧reflecting surface
104‧‧‧第一側 104‧‧‧ first side
105‧‧‧第二側 105‧‧‧ second side
106‧‧‧平行區塊 106‧‧‧Parallel blocks
110‧‧‧點狀微結構 110‧‧‧ point microstructure
120‧‧‧條狀微結構 120‧‧‧ strip microstructure
A1‧‧‧第一方向 A1‧‧‧ first direction
A2‧‧‧第二方向 A2‧‧‧ second direction
Claims (10)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520951255.6U CN205246928U (en) | 2015-11-25 | 2015-11-25 | Leaded light material, backlight unit and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TWM521195U true TWM521195U (en) | 2016-05-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW104219586U TWM521195U (en) | 2015-11-25 | 2015-12-07 | Light guiding plate, backlight module, and display device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3205464U (en) |
| CN (1) | CN205246928U (en) |
| TW (1) | TWM521195U (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105929481A (en) * | 2016-07-15 | 2016-09-07 | 周翠敏 | Backlight module and light guide plate thereof |
| CN111477487B (en) * | 2019-06-18 | 2023-07-14 | 光宝电子(广州)有限公司 | Input device |
| CN114355672A (en) | 2022-01-10 | 2022-04-15 | Tcl华星光电技术有限公司 | Light source module, liquid crystal display device and display equipment |
| CN117897655A (en) * | 2022-06-29 | 2024-04-16 | 京东方科技集团股份有限公司 | Backlight module and display device |
-
2015
- 2015-11-25 CN CN201520951255.6U patent/CN205246928U/en active Active
- 2015-12-07 TW TW104219586U patent/TWM521195U/en unknown
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2016
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| Publication number | Publication date |
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| JP3205464U (en) | 2016-07-28 |
| CN205246928U (en) | 2016-05-18 |
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