M362428 五、新型說明： 【新型所屬之技術領域】 本創作疋有關於一種背板結構、背光模組及液晶顯示裝 置，且特別是有關於塑膠背板結構及其應用的背光模組與液晶 顯示裝置。 【先前技術】 液晶顯示器（Liquid Crystal Display，LCD)具有高畫質、體 積小' 重罝輕、低驅動電壓、與低消耗功率等優點，因此被廣 泛應用各種通讯或電子產品。液晶顯示器大部分為背光型液 晶顯示器，其係由液晶顯示面板及背光模組所組成。因此，背 光模組為液晶顯示器中相當關鍵之零組件之一。背光模組可依 照光源入射位置的不同分成側向式入光（Side Hght 與直下 式入光（Direct_light type)兩種，藉以提供液晶顯示器一面光源。 以者光模組為直下式入光來舉例說明，此時，背光模組可 設有複數個光源和反射片於—背板上，反射片制以反射光源 的光線，而可提高背光模組的背光效果。 然而，此反射片通常需利用膠帶來固定於背板上，因而增 加膠帶成本，以及人力成本和組裝時間，進而增加背光模組的 組裝成本和時間。 ^再者，當液晶顯示器的尺寸逐漸增大時，背光模組的光源 :又置數里亦需對應增加，以確保背光亮度。然而，由於反射片 需1開口來暴露出光源，當背光模組的尺寸增加或光源的設 置數ΐ愈來愈多時’愈容㈣加反射片與光源之間的定位困 、而Β加旁光模組的組裝困難。且當反射片的開孔未準確 3 ，M362428 地對位於光源時，容易造成局部暗塊，因而影響背光模組的發 光均勻性。 【新型内容】 因此本創作之一方面係在於提供一種背板結構、背光模組 及液晶顯示裝置，此背板結構可形成反射斜面於光源的周圍， 藉以省略反射片的设置’因而可節省反射片的組裝時間及設置 成本。 • 本創作之另一方面係在於提供一種背板結構、背光模組及 液晶顯示裝置，藉以利用塑膠材料來一體成型此背板結構，達 到輕量化的功效。 根據本創作之實施例，本創作之背板結構包含板體、複數 個通孔及複數個反射斜面。板體係以塑膠材料來一體成型，通 孔係開設於板體上，用以穿設光源，反射斜面係形成於每一通 孔的周圍，且位於板體的一側上，用以反射光源的光線。 又，根據本創作之實施例，本創作之背光模組包含背板結 Φ 構和複數個光源。背板結構包含板體、複數個通孔及複數個反 射斜面。板體係以塑膠材料來一體成型，通孔係開設於板體 上，反射斜面係形成於每一通孔的周圍，且位於板體的一側 上。光源係設置於板體的通孔令，其中光源的光線係經由反射 ' 斜面來進行反射。 ' 又，根據本創作之實施例，上述背光模組可應用於液晶顯 示裝置中。 因此，本創作之背板結構及其應用的背光模組與液晶顯示 裝置可省略反射片的設置，以節省組裝時間及成本。且背板結 構係以塑膠材料來一體成型，而具有輕量化的功效。 4 ，M362428 【實施方式】 為讓本創作之上述和其他目的、特徵、優點與實施例能更 明顯易懂，本說明書將特舉出一系列實施例來加以說明。但值 得注意的是，此些實施例只是用以說明本創作之實施方式，而 非用以限定本創作。 - 請參照圖1，其繪示依照本創作之一實施例之液晶顯示面 板與背光模組的剖面示意圖。本實施例之背板結構1 1 0可應用 • 於背光模組100，其較佳為直下式背光模組，用以提供背光源 於液晶顯示面板200中，因而背光模組、〇 〇和液晶顯示面板2 〇 〇 可形成液晶顯示裝置（Liquid Crystal Display ; LCD)。如第1圖 所示，背光模組1〇〇包含背板結構110、複數個光源12〇'電路 板130及至少一光學膜片14〇。f板結構11〇係用以裝設光源 120、電路板13G及光學膜片14()。光源m係設置於電路板 130上，並穿過背板結構11〇來發出光線。電路板係電性 連接於光源12G ’用以控制光源m來發光。光學膜片14〇是 癱設置於光源120上方，用以改善背光的輝度、色度、均句性或 發光效率。 如圖1所示，本實施例之背板結構110包含板體111、複 數個通孔112及反射斜面113。板體iu係以塑膠㈣來―體 成型，例如可使用機械加卫、壓鑄或射出成型等—體成型的方 法來製造，此塑膠材料例如：耐沖擊聚苯乙稀(刪）、對聚丙 稀(PP)聚甲基丙稀酸甲醋（PMMa)、聚碳酸醋(PC)或聚縫鍵嗣M362428 V. New Description: [New Technology Field] This notebook is about a backplane structure, backlight module and liquid crystal display device, and especially for the back panel and liquid crystal display of the plastic backplane structure and its application. Device. [Prior Art] A liquid crystal display (LCD) has a high image quality, a small volume, a light weight, a low driving voltage, and a low power consumption, and thus is widely used in various communication or electronic products. Most of the liquid crystal displays are backlight type liquid crystal displays, which are composed of a liquid crystal display panel and a backlight module. Therefore, the backlight module is one of the most critical components in the liquid crystal display. The backlight module can be divided into two types according to the position of the light source (Side Hght and Direct_light type), so as to provide a light source for the liquid crystal display. The light module is a direct light source. In this case, the backlight module can be provided with a plurality of light sources and reflective sheets on the backplane, and the reflective sheet can reflect the light of the light source, thereby improving the backlight effect of the backlight module. However, the reflective sheet usually needs to be utilized. The tape is fixed on the backboard, thereby increasing the cost of the tape, as well as labor cost and assembly time, thereby increasing the assembly cost and time of the backlight module. Further, when the size of the liquid crystal display is gradually increased, the light source of the backlight module : In addition, the number needs to be increased to ensure the brightness of the backlight. However, since the reflector requires an opening to expose the light source, when the size of the backlight module increases or the number of light sources is increased, the more (4) The positioning between the reflection sheet and the light source is difficult, and the assembly of the backlight module is difficult. And when the opening of the reflection sheet is not accurate 3, the M362428 is easily located at the light source. It becomes a partial dark block, thus affecting the uniformity of illumination of the backlight module. [New content] Therefore, one aspect of the present invention is to provide a back plate structure, a backlight module and a liquid crystal display device, and the back plate structure can form a reflective slope Around the light source, the arrangement of the reflection sheet is omitted. Thus, the assembly time and installation cost of the reflection sheet can be saved. • Another aspect of the present invention is to provide a back sheet structure, a backlight module, and a liquid crystal display device, thereby utilizing a plastic material. According to the embodiment of the present invention, the back plate structure of the present invention comprises a plate body, a plurality of through holes and a plurality of reflective slopes. The plate system is integrally formed by a plastic material. The through hole is formed on the plate body for arranging the light source, and the reflective slope is formed around each of the through holes, and is located on one side of the plate body for reflecting the light of the light source. Further, according to the embodiment of the present invention The backlight module of the present invention comprises a back plate junction Φ structure and a plurality of light sources. The back plate structure comprises a plate body, a plurality of through holes and a plurality of opposite The plate system is integrally formed of a plastic material, the through hole is formed on the plate body, and the reflective slope is formed around each of the through holes, and is located on one side of the plate body. The light source is disposed in the through hole of the plate body The light of the light source is reflected by reflecting the inclined surface. Further, according to the embodiment of the present invention, the backlight module can be applied to a liquid crystal display device. Therefore, the backlight structure of the present invention and the backlight module thereof are applied. The group and the liquid crystal display device can omit the setting of the reflection sheet to save assembly time and cost, and the back plate structure is integrally molded by a plastic material, and has a lightweight effect. 4 , M362428 [Embodiment] The above and other objects, features, advantages and embodiments will be more apparent and understood. Instead of limiting the creation. Please refer to FIG. 1 , which is a cross-sectional view of a liquid crystal display panel and a backlight module according to an embodiment of the present invention. The backplane structure 110 of the present embodiment can be applied to the backlight module 100, which is preferably a direct-lit backlight module for providing backlights in the liquid crystal display panel 200, and thus the backlight module, the cymbal and the liquid crystal The display panel 2 〇〇 can form a liquid crystal display (LCD). As shown in FIG. 1, the backlight module 1A includes a backplane structure 110, a plurality of light sources 12'', and at least one optical film 14A. The f-plate structure 11 is used to mount the light source 120, the circuit board 13G, and the optical film 14 (). The light source m is disposed on the circuit board 130 and passes through the back plate structure 11 to emit light. The circuit board is electrically connected to the light source 12G' to control the light source m to emit light. The optical film 14 is disposed above the light source 120 to improve the brightness, chromaticity, uniformity or luminous efficiency of the backlight. As shown in FIG. 1, the backplane structure 110 of the present embodiment includes a board body 111, a plurality of through holes 112, and a reflective slope 113. The plate body iu is formed by plastic (four), for example, it can be manufactured by mechanical molding, die casting or injection molding, such as impact-resistant polystyrene (deletion), polypropylene. (PP) polymethyl methacrylate methyl vinegar (PMMa), polycarbonate (PC) or polyitch 嗣
(PEEK)等塑膠材料，且茈期M 此塑膠材料可摻雜有金屬（例如鉛）或玻 璃纖維（或碳纖維），以提升村料強度。在-實施例中，板體m 例如係以白色塑膠材料(例如具有高反射性的pc)所一體成 5 -M362428 型’以提升光反射效^此板體ηι的周圍可形成側框114, 藉以形成混光腔室於板體111和侧框114之間。其中側框114 亦可為塑膠材料’而—體成型於板體ill i，然不限於此，在 一些實施例中，侧框114可為金屬或塑膠材料，並組裝或固定 於板體111上。在一實施例中，板體U1和側框114的内側壁 表面可塗佈间反射率材料，以提升光反射效果。此外，塑膠材 - 料内可添加白色反射材料（如二氧化鈦）。 • 如圖1所示，在本實施例中，背板結構110可更包含階梯 • 部115和支撐柱（未繪示）。階梯部115係形成於側框114上， 用以設置光學膜片140於背板結構110上。支撐柱係設置於板 體ill的一側上，用以支撐光學膜片14〇,避免光學膜片14〇 因本身重量而發生撓曲情形。此支撐柱可一體成型於板體m 上’然不限於此’支撐柱亦可利用嵌設、壓合、硬焊、焊接、 緊配、黏著或螺固等方式來設置於板體in上。 如圖1所示，本實施例之背板結構11()的通孔112可為任 意形狀（如圓形或矩形）的孔洞，其開設於板體111，用以穿設這 φ 些光源丨2〇。因此，每一光源120可嵌設於通孔1丨2中，且光 源120的光線可通過通孔112來出光，並入射至光學膜片mo。 背板結構110的反射斜面113係形成於每一通孔112的周圍， 且位於板體111的一側上’用以反射光源120的光線。反射斜 面113可為傾斜平面或傾斜曲面，其與板體in的底面之間具 有小於90度的角度/9。反射斜面113可藉由光反射結構ι〇1 來形成，光反射結構101可形成高低起伏的凹凸結構，其位於 板體111的一側，且位於板體111的出光侧，用以形成反射斜 面113來反射光源120的光線。 請參照圖1以及圖2A至圖2C，圖2A至圖2C繪示依照本 6 、M362428 創作之-實施例之背板結構的局部剖面示意圖。在—實施例 中，背板結構110a的光反射結構1〇H列如係由複數個凸部i〇h 所構成，例如為錐形（如圖2A所示）、金字塔形（如圖2B所示）、 半球形(如圖2C所示)或稜形的凸部，其可均勻分佈且一體成型 地凸設於板體llla的出光侧上。此時，通孔心係開設於這 些凸部HHa之間，而凸部101&的表面可形成反射斜面n3a， 因而形成外凸的反射斜面U3a於通孔112&的周圍。 請參照圖1以及圖3A和圖犯，圖3A和圖3B緣示依照本 創作之另一實施例之背板結構的局部剖面示意圖。在另一實施 例中，背板結肖ii〇b的光反射結冑101例如為複數個凹部(PEEK) and other plastic materials, and the M material can be doped with metal (such as lead) or glass fiber (or carbon fiber) to enhance the strength of the village. In the embodiment, the plate body m is integrally formed of a white plastic material (for example, a pc having high reflectivity) into a 5-M362428 type to enhance the light reflection effect, and the side frame 114 can be formed around the plate body ηι. Thereby, a light mixing chamber is formed between the plate body 111 and the side frame 114. The side frame 114 may be formed of a plastic material and formed on the plate body ill i. However, in some embodiments, the side frame 114 may be a metal or plastic material and assembled or fixed on the plate body 111. . In an embodiment, the inner sidewall surfaces of the plate body U1 and the side frame 114 may be coated with an inter-reflectivity material to enhance the light reflection effect. In addition, a white reflective material (such as titanium dioxide) can be added to the plastic material. As shown in FIG. 1, in the embodiment, the back plate structure 110 may further include a step portion 115 and a support column (not shown). The step portion 115 is formed on the side frame 114 for arranging the optical film 140 on the back plate structure 110. The support post is disposed on one side of the plate ill to support the optical film 14 〇 to prevent the optical film 14 from being deflected due to its own weight. The support column can be integrally formed on the plate body m. However, the support column can also be disposed on the plate body in by means of embedding, pressing, brazing, welding, tight fitting, adhesion or screwing. As shown in FIG. 1 , the through hole 112 of the back plate structure 11 ( ) of the embodiment may be a hole of any shape (such as a circle or a rectangle), and is formed in the plate body 111 for piercing the φ light sources. 2〇. Therefore, each light source 120 can be embedded in the through hole 1丨2, and the light of the light source 120 can be emitted through the through hole 112 and incident on the optical film mo. A reflective slope 113 of the backplane structure 110 is formed around each of the through holes 112 and is located on one side of the plate body 111 to reflect the light of the light source 120. The reflective bevel 113 may be an inclined plane or an inclined curved surface having an angle / 9 of less than 90 degrees with the bottom surface of the plate body in. The reflective slope 113 can be formed by the light reflecting structure ι 〇 1 , and the light reflecting structure 101 can form a high and low undulating concave and convex structure, which is located at one side of the plate body 111 and is located on the light exiting side of the plate body 111 to form a reflecting slope. 113 to reflect the light of the light source 120. Please refer to FIG. 1 and FIG. 2A to FIG. 2C. FIG. 2A to FIG. 2C are schematic cross-sectional views showing the structure of the backplane according to the embodiment of the present invention. In the embodiment, the light reflecting structure 1〇H column of the back plate structure 110a is composed of a plurality of convex portions i〇h, for example, a cone (as shown in FIG. 2A) and a pyramid shape (as shown in FIG. 2B). Shown, a hemispherical shape (as shown in FIG. 2C) or a prismatic convex portion which is uniformly distributed and integrally formed on the light exiting side of the plate body 111a. At this time, the through hole core is formed between the convex portions HHa, and the surface of the convex portion 101 & can form the reflection inclined surface n3a, thereby forming the convex reflection slope U3a around the through hole 112 & Referring to FIG. 1 and FIG. 3A and FIG. 3B, FIG. 3A and FIG. 3B are partial cross-sectional views showing the structure of the backplane according to another embodiment of the present invention. In another embodiment, the light reflecting node 101 of the backing plate XI 〇 〇 b is, for example, a plurality of recesses
loib’例如為半球形（如圖3A所示）、弧形或錐形（如圖3b所示） 的凹部，其可均勻分佈且一體成型地凹設於板體丨丨沁的出光側 上，此時，通孔112b可開設於每一凹部1〇lb的底部，而凹部 l〇lb的内侧表面可形成反射斜面U3b，因而形成内凹的反射斜 面113b於通孔112b的周圍。 如圖1所示，本實施例的光源12〇例如為點光源，如發光 二極體（Light-Emitting Diode; LED)、有機發光二極體（〇rganic Light Emitting Diode ; OLED)或電激發光元件 (Electro-Luminescence ; EL)，其設置於電路板130上，並位於 背板結構110的通孔112中，藉以由通孔Π2中發出光線。電 路板130例如為印刷電路板（printed circuit board ; PCB)或軟性 印刷電路板(Flexible Printed Circuits ; FPC)，其設置於背板於 構110的相對另一侧’亦即位於背板結構110的底面，以控制 光源120的發光。本實施例之光學膜片14〇例如為：擴散片、 稜鏡片、增亮膜、擴散板或上述的任意組合，其設置於背板結 構110的上方，且較佳與光源120具有預設距離，用以改善光 7 M362428 '源120的發光效果β 當本實施例的光源120發光時’其光線可由通孔112出光， 並可利用在通孔112周圍藉由凸部或凹部的設置而提供的反射 斜面113來進行反射，以提升背光模組1〇〇的光強度和背光效 率。因此，本實施例的背板結構11〇可省略反射片的設置，以 即省反射片的組裝時間及設置成本，進而可減少背光模組 的成本和組裝時間。再者，由於背光模組1〇〇的背板結構ιι〇 係以塑膠材料來一體成型，且省略設置反射片，因而可減少整 φ 體重量’達到輕量化的功效。 請參照圖4Α和圖4Β，其繪示依照本創作之一些實施例之 背板結構的局部剖面示意圖。值得注意的是，在一些實施例 中，些光源120之間的間距這些反射斜面113之間的間 距d2、反射斜面113的傾斜角度0或反射斜面113的反射範圍 (或面積）可依實際使用需求，而可分別皆不同，或者部分相同 且部分不同，藉以調整背光強度或光反射效果。舉例來說明， 通常可理解的是’絲12G之間的區域的光強度通常較弱，或 鲁者因電流強度不同而光源12G的亮度不同，因而在背光模組ι〇〇 上形成亮度不同的亮區和暗區。此時，可對應調整光源12〇的 間距（Π、反射斜面113的間距们、反射斜面113的傾斜角度θ 或反射範圍（或面積），藉以增加暗區或改變其他區域的光強 度，並提升背光均勻性。 Φ上述本創作的實施财知，本創作之背板結構及其應用 的背光模組與液晶顯示褒置可省略設置反射片，以節省反射片 的組裝時間及設置成本，並可減少背光模組的成本和組裝時 間。且背板結構係以塑膠材料來一體成型，因而具有輕量化的 功效。 8 M362428 雖然本創作已以實施例揭露如上，然其並非用以限定本創 作，任何熟省此技藝者，在不脫離本創作之精神和範圍内，當 可作各種之更動與潤飾，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。 【圖式簡單說明】 為讓本創作之上述和其他目的、特徵、優點與實施例能更 明顯易懂，所附圖式之詳細說明如下：The loib' is, for example, a concave portion that is hemispherical (as shown in FIG. 3A), curved or tapered (as shown in FIG. 3b), which is evenly distributed and integrally formed on the light exiting side of the plate body, At this time, the through hole 112b may be opened at the bottom of each recess 1b, and the inner surface of the recess 110b may form a reflective slope U3b, thereby forming a concave reflective slope 113b around the through hole 112b. As shown in FIG. 1 , the light source 12 本 of the embodiment is, for example, a point light source, such as a Light-Emitting Diode (LED), an organic light emitting diode (OLED), or an electroluminescent light. An element (Electro-Luminescence; EL) is disposed on the circuit board 130 and located in the through hole 112 of the back plate structure 110, thereby emitting light from the through hole Π2. The circuit board 130 is, for example, a printed circuit board (PCB) or a flexible printed circuit board (FPC), which is disposed on the opposite side of the backplane 110, that is, on the backplane structure 110. The bottom surface controls the illumination of the light source 120. The optical film 14 of the present embodiment is, for example, a diffusion sheet, a silicon sheet, a brightness enhancement film, a diffusion plate or any combination thereof, which is disposed above the back plate structure 110 and preferably has a preset distance from the light source 120. For improving the light-emitting effect β of the light source M M M 428 428 'when the light source 120 of the present embodiment emits light', the light can be emitted by the through-hole 112 and can be provided by the arrangement of the convex portion or the concave portion around the through-hole 112. The reflective slope 113 is used for reflection to improve the light intensity and backlight efficiency of the backlight module 1 . Therefore, the backplane structure 11 of the present embodiment can omit the arrangement of the reflective sheet, so as to save the assembly time and the installation cost of the reflective sheet, thereby reducing the cost and assembly time of the backlight module. Further, since the back panel structure of the backlight module 1 is integrally formed of a plastic material, and the reflection sheet is omitted, the weight reduction of the entire body can be reduced to achieve weight reduction. Referring to Figures 4A and 4B, there are shown partial cross-sectional views of a backplane structure in accordance with some embodiments of the present teachings. It should be noted that, in some embodiments, the spacing between the light sources 120, the spacing d2 between the reflective slopes 113, the tilt angle 0 of the reflective slope 113, or the reflection range (or area) of the reflective slope 113 may be used according to actual use. The requirements can be different, or partially the same and partially different, to adjust the backlight intensity or light reflection effect. For example, it is generally understood that the light intensity of the area between the wires 12G is generally weak, or the brightness of the light source 12G is different due to the difference in current intensity, and thus the brightness of the backlight module is different. Bright and dark areas. At this time, the pitch of the light source 12〇 (Π, the pitch of the reflective slope 113, the inclination angle θ of the reflection slope 113, or the reflection range (or area) can be adjusted correspondingly, thereby increasing the dark area or changing the light intensity of other areas, and improving The uniformity of the backlight. Φ The implementation of the above-mentioned creation, the back panel structure of the present invention and the backlight module and the liquid crystal display device thereof can omit the provision of the reflective sheet to save assembly time and installation cost of the reflective sheet, and The cost of the backlight module and the assembly time are reduced, and the back plate structure is integrally molded with a plastic material, thereby having a lightweight effect. 8 M362428 Although the present invention has been disclosed above by way of example, it is not intended to limit the creation. Anyone who is familiar with this skill can make various changes and refinements without departing from the spirit and scope of this creation. Therefore, the scope of protection of this creation shall be subject to the definition of the patent application scope attached. BRIEF DESCRIPTION OF THE DRAWINGS In order to make the above and other objects, features, advantages and embodiments of the present invention more obvious, the detailed description of the drawings is as follows:
圖1繪示依照本創作之一實施例之液晶顯示面板與背光模 組的剖面示意圖。 2A至圖2C ’其繪示依照本創作之一實施例之背板結構的 局部剖面示意圖。 3 A和圖3B繪示依照本創作之另一實施例之背板結構的局 部剖面示意圖。 圖4A和圖4B繪示依照本創作之一些實施例之背板結構的 局部剖面示意圖。1 is a cross-sectional view of a liquid crystal display panel and a backlight module in accordance with an embodiment of the present invention. 2A through 2C' are partial cross-sectional views showing the structure of the back sheet in accordance with an embodiment of the present invention. 3A and 3B are partial cross-sectional views showing the structure of the backplane in accordance with another embodiment of the present invention. 4A and 4B are partial cross-sectional schematic views of a backplane structure in accordance with some embodiments of the present teachings.
【主要元件符號說明】 分：角度 101 a :凸部 100 :背光模組 110、 110a、110b :背板結構 111、 111a、111b :板體 113、113a、113b :反射斜面 115 :階梯部 120 :光源 d 1、d2 :間距 101b :凹部 112、112a、112b:通孔 114 :侧框 130 :電路板 9 M362428 液晶顯不面板 140 :光學膜片 200 ：[Description of main component symbols] Min: angle 101 a : convex portion 100: backlight module 110, 110a, 110b: back plate structure 111, 111a, 111b: plate body 113, 113a, 113b: reflective slope 115: step portion 120: Light source d 1 , d2 : pitch 101b : recess 112 , 112a , 112b : through hole 114 : side frame 130 : circuit board 9 M362428 liquid crystal display panel 140 : optical film 200 :
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