TWI556038B - Backlight module - Google Patents
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- TWI556038B TWI556038B TW104101475A TW104101475A TWI556038B TW I556038 B TWI556038 B TW I556038B TW 104101475 A TW104101475 A TW 104101475A TW 104101475 A TW104101475 A TW 104101475A TW I556038 B TWI556038 B TW I556038B
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Description
本發明關於一種背光模組。 The invention relates to a backlight module.
圖1為一習知背光模組的局部剖面示意圖。如圖1所示，背光模組100具有一背板102及限位於背板102內的光源104和擴散板106，且至少一光學膜片108設置於擴散板106上。因習知背光模組100的擴散板106為具一定厚度的板狀實體結構，故無法滿足目前背光模組要求更輕薄化的需求。 1 is a partial cross-sectional view of a conventional backlight module. As shown in FIG. 1 , the backlight module 100 has a back plate 102 and a light source 104 and a diffusion plate 106 limited to the back plate 102 , and at least one optical film 108 is disposed on the diffusion plate 106 . Because the diffusion plate 106 of the backlight module 100 is a plate-like solid structure having a certain thickness, it cannot meet the requirements of the current backlight module to be lighter and thinner.
台灣專利公開號TW201024809A揭露一種擴散板，包含出光面、入光面、複數條主線狀凸部及複數條次線狀凸部。入光面與出光面係相對配置，且藉由主線狀凸部及次線狀凸部之混合使用，可提高光擴散能力。台灣專利公告號TWI410713揭露一種液晶顯示器，包含背光模組及顯示面板。背光模組具有反射板、光源、增亮擴散膜、相位延遲膜及偏光板。增亮擴散膜包含膽固醇液晶膜及透光性光學層，透光性光學層包含透光微粒以及透光樹脂材料，透光樹脂材料包括高分子網狀交聯產物或是熱硬化型樹脂之交聯產物。 Taiwan Patent Publication No. TW201024809A discloses a diffusing plate comprising a light emitting surface, a light incident surface, a plurality of main linear convex portions, and a plurality of linear linear convex portions. The light incident surface and the light exit surface are arranged to face each other, and the light diffusing ability can be improved by using a mixture of the main linear convex portion and the secondary linear convex portion. Taiwan Patent Publication No. TWI410713 discloses a liquid crystal display comprising a backlight module and a display panel. The backlight module has a reflector, a light source, a brightness enhancing diffusion film, a phase retardation film, and a polarizing plate. The brightening diffusion film comprises a cholesteric liquid crystal film and a light transmissive optical layer, the light transmissive optical layer comprises light transmissive particles and a light transmissive resin material, and the light transmissive resin material comprises a polymer network crosslinked product or a thermosetting resin. Joint product.
本發明提供一種具輕薄化特性的背光模組。 The invention provides a backlight module with light and thin characteristics.
本發明的其他目的和優點可以從本發明所揭露的技術特徵中得到進一步的了解。 Other objects and advantages of the present invention will become apparent from the technical features disclosed herein.
為達上述之一或部份或全部目的或是其他目的，本發明之一實施例提供一種背光模組包含一背板、至少一光源及一 網狀擴散結構。背板包含一底板以及複數個側壁，側壁連接至底板並與底板圍成一容置空間，且光源設置於容置空間內。網狀擴散結構設置於容置空間上方且包含複數條透明網線，透明網線交織形成複數個網格，且網狀擴散結構於不同區域具有不同的網線分佈密度。 In order to achieve one or a part or all of the above or other purposes, an embodiment of the present invention provides a backlight module including a backplane, at least one light source, and a Mesh diffusion structure. The backplane includes a bottom plate and a plurality of side walls. The side wall is connected to the bottom plate and encloses an accommodating space with the bottom plate, and the light source is disposed in the accommodating space. The mesh diffusion structure is disposed above the accommodating space and includes a plurality of transparent mesh lines. The transparent mesh lines are interlaced to form a plurality of meshes, and the mesh diffusion structures have different network line distribution densities in different regions.
於一實施例中，網狀擴散結構固定於背板的側壁，且一反射片可設置於容置空間內且位於光源與背板之間。 In one embodiment, the mesh diffusion structure is fixed to the sidewall of the backboard, and a reflective sheet can be disposed in the accommodating space and located between the light source and the backplane.
於一實施例中，網狀擴散結構的網線分佈密度可由四周往中心增大，且位於不同區域的網格可具有不同的間距。其中網格間距可由四周往中心減小。 In an embodiment, the mesh distribution density of the mesh diffusion structure may increase from the periphery to the center, and the grids located in different regions may have different pitches. The grid spacing can be reduced from four weeks to the center.
於一實施例中，透明網線的材質可為塑膠，且光源可為發光二極體燈條。 In an embodiment, the transparent mesh wire may be made of plastic, and the light source may be a light-emitting diode light bar.
藉由上述實施例的設計，使用網線交織成的網狀擴散結構，可減少材料使用量滿足背光模組輕薄化的需求且可簡化製程，且因網狀擴散結構於不同區域可設定不同的網線分佈密度或網格間距，故易於調整網狀擴散結構的局部擴光能力且可進一步提高出光均勻性。 With the design of the above embodiment, the mesh diffusion structure interlaced by the network cable can reduce the requirement of material usage to meet the requirements of thinning and thinning of the backlight module, and can simplify the process, and the mesh diffusion structure can be set differently in different regions. The distribution density of the network lines or the grid spacing makes it easy to adjust the local light-expanding ability of the mesh-like diffusion structure and further improve the uniformity of light emission.
本發明的其他目的和優點可以從本發明所揭露的技術特徵中得到進一步的了解。為讓本發明之上述和其他目的、特徵和優點能更明顯易懂，下文特舉實施例並配合所附圖式，作詳細說明如下。 Other objects and advantages of the present invention will become apparent from the technical features disclosed herein. The above and other objects, features, and advantages of the invention will be apparent from
10‧‧‧背光模組 10‧‧‧Backlight module
12‧‧‧背板 12‧‧‧ Backplane
12a‧‧‧底板 12a‧‧‧floor
12b‧‧‧側壁 12b‧‧‧ sidewall
14‧‧‧光源 14‧‧‧Light source
16、16a‧‧‧網狀擴散結構 16, 16a‧‧‧ mesh diffusion structure
161‧‧‧網線 161‧‧‧Network cable
162‧‧‧網格 162‧‧‧Grid
18‧‧‧反射片 18‧‧‧reflector
22‧‧‧光學膜片 22‧‧‧Optical diaphragm
100‧‧‧背光模組 100‧‧‧Backlight module
102‧‧‧背板 102‧‧‧ Backplane
104‧‧‧光源 104‧‧‧Light source
106‧‧‧擴散板 106‧‧‧Diffuser
108‧‧‧光學膜片 108‧‧‧Optical diaphragm
P‧‧‧容置空間 P‧‧‧ accommodating space
圖1為一習知背光模組的局部剖面示意圖。 1 is a partial cross-sectional view of a conventional backlight module.
圖2為本發明一實施例的背光模組的局部剖面示意圖。 2 is a partial cross-sectional view showing a backlight module according to an embodiment of the invention.
圖3為本發明一實施例的網狀擴散結構的示意圖。 3 is a schematic view of a mesh diffusion structure according to an embodiment of the present invention.
圖4為本發明另一實施例的網狀擴散結構的示意圖。 4 is a schematic view of a mesh diffusion structure according to another embodiment of the present invention.
有關本發明之前述及其他技術內容、特點與功效，在以下 配合參考圖式之實施例的詳細說明中，將可清楚地呈現。以下實施例中所提到的方向用語，例如：上、下、左、右、前或後等，僅是參考附加圖式的方向。因此，使用的方向用語是用來說明並非用來限制本發明。 The foregoing and other technical contents, features and effects of the present invention are as follows The detailed description of the embodiments with reference to the drawings will be clearly presented. The directional terms mentioned in the following embodiments, such as up, down, left, right, front or back, etc., are only directions referring to the additional drawings. Therefore, the directional terminology used is for the purpose of illustration and not limitation.
圖2為本發明一實施例的背光模組的局部剖面示意圖。如 圖2所示，一種背光模組10包含一背板12、至少一光源14、及一網狀擴散結構16。背板12包含一底板12a以及複數個側壁12b(圖2中僅繪示一個側壁12b)，且複數個側壁12b連接至底板12a並與底板12a圍成一容置空間P。光源14設置於容置空間P內，且網狀擴散結構16設置於容置空間P的上方。光源14例如可為發光二極體燈條。 至少一光學膜片22(例如增亮片)可設置於網狀擴散結構16上，且一反射片18可設置於容置空間P內且位於光源14與背板12之間以提高光利用效率。光源14發出的向上出射的光線可通過網狀擴散結構16及光學膜片22。如圖3所示，網狀擴散結構16可包含複數條透明網線161，透明網線161交織形成複數個網格162，利用各條網線161對入射光的偏折作用可使整體獲得光擴散的效果。於本實施例中，藉由調整網狀擴散結構16的不同區域的網格間距或網線密度，可以對不同位置的光線進行補償和平衡，從而達到均勻的光擴散效果，舉例而言，如圖3所示，若中心較四周的入射光量較強時，網狀擴散結構16的網線分佈密度可由四周往中心增大、或網格間距可由四周往中心減少，以獲得均勻的光擴散效果。當然，網線分佈方式並不限定，可依據光源分佈進行疏密變化的調整。於另一實施例中，若多個光源14的分佈為靠近四個角落位置處的光能量較強，如圖4所示，網狀擴散結構16a的四個角落位置的虛線圈圍區域可增加網線分布密度或減少網格間距，藉由透明網線161對光線的全反射、折射等作用， 改變光線的傳播路徑，從而減少圖4中的虛線圈圍區域的出光量，達到畫面出光均勻的效果。 2 is a partial cross-sectional view showing a backlight module according to an embodiment of the invention. Such as As shown in FIG. 2 , a backlight module 10 includes a back plate 12 , at least one light source 14 , and a mesh diffusion structure 16 . The back plate 12 includes a bottom plate 12a and a plurality of side walls 12b (only one side wall 12b is shown in FIG. 2), and a plurality of side walls 12b are connected to the bottom plate 12a and enclose an accommodation space P with the bottom plate 12a. The light source 14 is disposed in the accommodating space P, and the mesh diffusion structure 16 is disposed above the accommodating space P. Light source 14 can be, for example, a light emitting diode light strip. At least one optical film 22 (for example, a brightness enhancing sheet) may be disposed on the mesh diffusion structure 16, and a reflective sheet 18 may be disposed in the accommodating space P and located between the light source 14 and the backing plate 12 to improve light utilization efficiency. The upwardly outgoing light from the light source 14 can pass through the mesh diffusion structure 16 and the optical film 22. As shown in FIG. 3, the mesh diffusion structure 16 may include a plurality of transparent mesh wires 161, and the transparent mesh wires 161 are interlaced to form a plurality of meshes 162. The deflection of the incident light by the respective mesh wires 161 may obtain light as a whole. The effect of diffusion. In this embodiment, by adjusting the grid spacing or the network density of different regions of the mesh diffusion structure 16, the light at different positions can be compensated and balanced to achieve a uniform light diffusion effect, for example, As shown in FIG. 3, if the amount of incident light in the center is stronger than the surrounding area, the distribution density of the mesh line of the mesh diffusion structure 16 may be increased from the periphery to the center, or the mesh pitch may be reduced from the periphery to the center to obtain a uniform light diffusion effect. . Of course, the distribution pattern of the network cable is not limited, and the adjustment of the density change can be performed according to the distribution of the light source. In another embodiment, if the plurality of light sources 14 are distributed with light energy near the four corner positions, as shown in FIG. 4, the virtual coil circumference of the four corner positions of the mesh diffusion structure 16a may be increased. The distribution density of the network line or the reduction of the grid spacing, the total reflection and refraction of the light by the transparent network line 161, The propagation path of the light is changed, thereby reducing the amount of light emitted by the surrounding area of the dotted circle in FIG. 4, and achieving the effect of uniform light emission on the screen.
於一實施例中，網狀擴散結構16例如可固定於背板12的側壁12b，且網狀擴散結構16(透明網線161)的材質例如可為塑膠但不限定。 In one embodiment, the mesh diffusion structure 16 can be fixed to the sidewall 12b of the backboard 12, for example, and the material of the mesh diffusion structure 16 (the transparent mesh 161) can be plastic, for example, but not limited.
綜上所述，本發明的實施例至少具有以下其中一個優點，藉由上述實施例的設計，使用網線交織成的網狀擴散結構，可減少材料使用量滿足背光模組輕薄化的需求且可簡化製程，且因網狀擴散結構於不同區域可設定不同的網線分佈密度或網格間距，故易於調整網狀擴散結構的局部擴光能力且可進一步提高出光均勻性。 In summary, the embodiment of the present invention has at least one of the following advantages. With the design of the above embodiment, the mesh diffusion structure interwoven by the network cable can reduce the requirement of material usage to meet the requirements of thinning and thinning of the backlight module. The process can be simplified, and different mesh distribution densities or grid spacings can be set in different regions due to the mesh diffusion structure, so that it is easy to adjust the local light-expanding ability of the mesh diffusion structure and further improve the uniformity of light emission.
惟以上所述者，僅為本發明之較佳實施例而已，當不能以此限定本發明實施之範圍，即大凡依本發明申請專利範圍及發明說明內容所作之簡單的等效變化與修飾，皆仍屬本發明專利涵蓋之範圍內。另外本發明的任一實施例或申請專利範圍不須達成本發明所揭露之全部目的或優點或特點。此外，摘要部分和標題僅是用來輔助專利文件搜尋之用，並非用來限制本發明之權利範圍。 The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent. In addition, any of the objects or advantages or features of the present invention are not required to be achieved by any embodiment or application of the invention. In addition, the abstract sections and headings are only used to assist in the search of patent documents and are not intended to limit the scope of the invention.
10‧‧‧背光模組 10‧‧‧Backlight module
12‧‧‧背板 12‧‧‧ Backplane
12a‧‧‧底板 12a‧‧‧floor
12b‧‧‧側壁 12b‧‧‧ sidewall
14‧‧‧光源 14‧‧‧Light source
16‧‧‧網狀擴散結構 16‧‧‧Mesh diffusion structure
161‧‧‧網線 161‧‧‧Network cable
18‧‧‧反射片 18‧‧‧reflector
22‧‧‧光學膜片 22‧‧‧Optical diaphragm
P‧‧‧容置空間 P‧‧‧ accommodating space
Claims (8)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410548722.0A CN105570830A (en) | 2014-10-16 | 2014-10-16 | Backlight module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201616193A TW201616193A (en) | 2016-05-01 |
| TWI556038B true TWI556038B (en) | 2016-11-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW104101475A TWI556038B (en) | 2014-10-16 | 2015-01-16 | Backlight module |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105570830A (en) |
| TW (1) | TWI556038B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200424472A (en) * | 2002-10-22 | 2004-11-16 | Sharp Kk | Backlight unit and liquid crystal display unit using backlight unit |
| JP2005117023A (en) * | 2003-09-19 | 2005-04-28 | Sony Corp | Backlight apparatus and liquid crystal display device |
| TW200832010A (en) * | 2007-01-31 | 2008-08-01 | Chi Mei Optoelectronics Corp | Back light module and manufacturing method thereof and display device using the same |
| CN101684921A (en) * | 2008-09-24 | 2010-03-31 | 京东方科技集团股份有限公司 | Light mixing film for mixing light from light emitting diode backlight source and light emitting diode backlight source |
| TWM451559U (en) * | 2012-07-23 | 2013-04-21 | Tpv Display Technology Xiamen | Backlight module |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2932430Y (en) * | 2006-02-17 | 2007-08-08 | 保视界光电有限公司 | Backlight module |
| KR100848754B1 (en) * | 2006-06-12 | 2008-07-25 | 삼성코닝정밀유리 주식회사 | Ultra thin surface light source, fabrication method thereof and backlight unit having the same |
| CN101344610B (en) * | 2007-07-12 | 2011-06-29 | 鸿富锦精密工业（深圳）有限公司 | Back light module and optical plate |
| CN103486494A (en) * | 2012-06-14 | 2014-01-01 | 冠捷投资有限公司 | Backlight module |
-
2014
- 2014-10-16 CN CN201410548722.0A patent/CN105570830A/en active Pending
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200424472A (en) * | 2002-10-22 | 2004-11-16 | Sharp Kk | Backlight unit and liquid crystal display unit using backlight unit |
| JP2005117023A (en) * | 2003-09-19 | 2005-04-28 | Sony Corp | Backlight apparatus and liquid crystal display device |
| TW200832010A (en) * | 2007-01-31 | 2008-08-01 | Chi Mei Optoelectronics Corp | Back light module and manufacturing method thereof and display device using the same |
| CN101684921A (en) * | 2008-09-24 | 2010-03-31 | 京东方科技集团股份有限公司 | Light mixing film for mixing light from light emitting diode backlight source and light emitting diode backlight source |
| TWM451559U (en) * | 2012-07-23 | 2013-04-21 | Tpv Display Technology Xiamen | Backlight module |
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| Publication number | Publication date |
|---|---|
| CN105570830A (en) | 2016-05-11 |
| TW201616193A (en) | 2016-05-01 |
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