TW201333602A - Backlight module - Google Patents
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- TW201333602A TW201333602A TW101104824A TW101104824A TW201333602A TW 201333602 A TW201333602 A TW 201333602A TW 101104824 A TW101104824 A TW 101104824A TW 101104824 A TW101104824 A TW 101104824A TW 201333602 A TW201333602 A TW 201333602A
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Abstract
Description
本發明關於一種背光模組。The invention relates to a backlight module.
請參考圖7，於一習知的背光模組100中，導光板102通常採用定位銷(圖未示)的方式固定，且光條(light bar)104則以螺絲106鎖附的方式固定於散熱片108上，再將散熱片108鎖附固定於一背板(圖未示)上。然而，上述設計中導光板102及光條104具有各自的定位方式，且兩種定位方式間並無關聯，再加上周邊元件的製作及組裝公差，於組裝後不同的背光模組成品間，導光板102與光條104兩者的間隙容易產生變異，影響輝度及出光均勻性的穩定度而降低背光模組的成品良率及光學品質。Referring to FIG. 7, in a conventional backlight module 100, the light guide plate 102 is usually fixed by a positioning pin (not shown), and the light bar 104 is fixed by a screw 106. On the heat sink 108, the heat sink 108 is then locked and fixed on a backboard (not shown). However, in the above design, the light guide plate 102 and the light strip 104 have respective positioning modes, and there is no correlation between the two positioning methods, and the manufacturing and assembly tolerances of the peripheral components are different between the finished backlight modules after assembly. The gap between the light guide plate 102 and the light bar 104 is easily mutated, affecting the stability of luminance and uniformity of light emission, and reducing the yield and optical quality of the backlight module.
習知技術例如台灣專利公告號M362364提供一種燈罩結構，包括框條以及多個固定件，框條包括一對壁體以及一底座，且發光元件配置於兩壁體之間並位於一底面上。台灣專利公開號200905291揭露一種背光模組，其中光源配置於導光板旁並被反射片包覆以提高光源利用率。另外，一L形背板配置於反射片外以提供光源較佳的散熱途徑。台灣專利公告號M366096揭露一種光源模組，其中光條置於背板的容置槽中以固定在框架與背板之間，且光條上的發光元件與導光板保持適當的距離，以確保背光模組的光源利用率。台灣專利公告號I337283揭露一種背光模組，此種背光模組具有包括多個干涉部及定位件的一定位裝置。A conventional lamp, such as the Taiwan Patent Publication No. M362364, provides a lampshade structure including a frame strip and a plurality of fixing members. The frame bar includes a pair of wall bodies and a base, and the light emitting elements are disposed between the two wall bodies and located on a bottom surface. Taiwan Patent Publication No. 200905291 discloses a backlight module in which a light source is disposed beside a light guide plate and covered by a reflective sheet to improve light source utilization. In addition, an L-shaped back plate is disposed outside the reflective sheet to provide a better heat dissipation path for the light source. Taiwan Patent Publication No. M366096 discloses a light source module in which a light strip is placed in a receiving groove of a backing plate to be fixed between the frame and the backing plate, and the light-emitting elements on the light strip are kept at an appropriate distance from the light guiding plate to ensure Light source utilization of the backlight module. Taiwan Patent Publication No. I337283 discloses a backlight module having a positioning device including a plurality of interference portions and positioning members.
本發明提供一種具有高成品良率及光學品質穩定度的背光模組。The invention provides a backlight module with high finished product yield and optical quality stability.
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，包括一光條、一導光板以及至少一定位件。導光板設置於鄰近光條位置處且適於引導光條發出的一光束，定位件包括一定位部及連接定位部的一緩衝部。定位部設置於光條及導光板之間且分別抵靠光條及導光板，且緩衝部設置於光條背向導光板的一側。Other objects and advantages of the present invention will become apparent from the technical features disclosed herein. An embodiment of the present invention provides a backlight module including a light bar, a light guide plate, and at least one positioning member for achieving one or a part or all of the above or other purposes. The light guide plate is disposed at a position adjacent to the light strip and is adapted to guide a light beam emitted by the light strip, and the positioning member comprises a positioning portion and a buffer portion connecting the positioning portions. The positioning portion is disposed between the light bar and the light guide plate and respectively abuts the light bar and the light guide plate, and the buffer portion is disposed on one side of the light bar back light guide plate.
於一實施例中，定位部的厚度與光條及導光板兩者之間的一間隙寬度實質相同。In an embodiment, the thickness of the positioning portion is substantially the same as a gap width between the light strip and the light guide plate.
於一實施例中，定位部包括朝向導光板方向凸伸的至少一擋塊，擋塊於凸伸方向上的高度與光條及導光板兩者之間的一間隙寬度實質相同，且擋塊的形成位置不疊合燈條的發光二極體。In one embodiment, the positioning portion includes at least one stopper protruding toward the light guide plate, and the height of the stopper in the protruding direction is substantially the same as a gap width between the light strip and the light guide plate, and the stopper The forming position does not overlap the light emitting diode of the light bar.
於一實施例中，緩衝部例如可包括一U字型彎折結構或一S字型彎折結構。In an embodiment, the buffer portion may include, for example, a U-shaped bent structure or an S-shaped bent structure.
於一實施例中，光條設置於一散熱片上，定位件固定於散熱片上且定位件的緩衝部設置於光條與散熱片之間。In one embodiment, the light strip is disposed on a heat sink, the positioning member is fixed on the heat sink, and the buffer portion of the positioning member is disposed between the light strip and the heat sink.
於一實施例中，定位部及緩衝部為相同材料且一體成型。In an embodiment, the positioning portion and the buffer portion are made of the same material and integrally formed.
於一實施例中，背光模組包括具有至少兩種不同外形的複數個定位件。In an embodiment, the backlight module includes a plurality of positioning members having at least two different shapes.
綜上所述，本發明之各個實施例至少具有下列其中一個優點：In summary, various embodiments of the present invention have at least one of the following advantages:
藉由上述各個實施例之設計，因定位件的定位部分別抵靠光條及導光板，故僅需預設定位部的厚度即可決定每個背光模組成品中的導光板與光條兩者的間隙寬度，如此可有效管控成品組裝後導光板與光條兩者的間隙寬度，避免不同成品的間隙產生變異而影響光學輝度及出光均勻性，故可提高背光模組的成品良率及光學品質穩定度。另外，定位件的緩衝部可提供一彈性緩衝空間以補償導光板因熱漲冷縮造成的間隙變異，確保光學品質不受溫度影響而具有較佳的穩定度。According to the design of the above embodiments, since the positioning portions of the positioning members respectively abut against the light bar and the light guide plate, only the thickness of the positioning portion can be preset to determine the light guide plate and the light bar in each finished backlight module. The gap width of the device can effectively control the gap width between the light guide plate and the light strip after assembly of the finished product, and avoid the variation of the gap between different finished products, thereby affecting the optical brightness and the uniformity of light emission, thereby improving the yield of the backlight module and Optical quality stability. In addition, the buffer portion of the positioning member can provide an elastic buffer space to compensate for the gap variation of the light guide plate due to thermal expansion and contraction, and to ensure optical quality is not affected by temperature and has better stability.
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
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，將可清楚的呈現。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 above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the embodiments of the invention. 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1為依本發明一實施例的背光模組的立體示意圖，圖2為圖1的剖面放大示意圖。於此為清楚顯示背光模組的構件，導光板僅繪示於圖2中而未繪示於圖1。如圖1及圖2所示，背光模組10包括一光條(light bar)12、一導光板14以及一定位件16。導光板14設置於鄰近光條12位置處且適於引導光條12發出的一光束。光條12可設置於一散熱片18上，且散熱片18適於傳導光條12產生的熱能。定位件16包括一定位部16a及一緩衝部16b，於本實施例中，定位部16a設置於光條12與導光板14之間且分別抵靠光條12及導光板14，且緩衝部16b設置於光條12背向導光板14的一側，例如緩衝部16b可設置於光條12與散熱片18間。定位部16a及緩衝部16b例如可為相同材料且利用一體成型方式製成，或者定位部16a及緩衝部16b可分別為不同材料所構成再組合成定位件16。定位件16可利用例如螺絲20的繫固件固定於散熱片18上，因定位部16a分別抵靠光條12及導光板14，且光條12可夾設於定位部16a及緩衝部16b間並藉由定位件16限位於散熱片18上，故光條12上方的定位部16a的厚度d與光條12及導光板14間的一間隙寬度實質相同。換言之，僅需預設定位部16a的厚度d即可決定每個背光模組成品中的導光板14與光條12兩者的間隙寬度，如此可有效管控成品組裝後導光板14與光條12兩者的間隙寬度，避免不同成品的間隙產生變異而影響光學輝度及出光均勻性，故可提高背光模組的成品良率及光學品質穩定度。另外，位於光條12下方的緩衝部16b可提供彈性變形的效果，藉以吸收導光板14熱漲冷縮時產生的應力，意即緩衝部16b可提供一彈性緩衝空間以補償導光板14因熱漲冷縮造成的間隙變異，確保光學品質不受溫度影響而具有較佳的穩定度。1 is a perspective view of a backlight module according to an embodiment of the invention, and FIG. 2 is an enlarged cross-sectional view of FIG. Herein, in order to clearly show the components of the backlight module, the light guide plate is only shown in FIG. 2 and is not shown in FIG. 1 . As shown in FIG. 1 and FIG. 2 , the backlight module 10 includes a light bar 12 , a light guide plate 14 , and a positioning member 16 . The light guide plate 14 is disposed adjacent to the position of the light strip 12 and is adapted to guide a light beam emitted by the light strip 12. The light strip 12 can be disposed on a heat sink 18, and the heat sink 18 is adapted to conduct thermal energy generated by the light strip 12. The positioning member 16 includes a positioning portion 16a and a buffer portion 16b. In the embodiment, the positioning portion 16a is disposed between the light bar 12 and the light guide plate 14 and abuts the light bar 12 and the light guide plate 14, respectively, and the buffer portion 16b. The light strip 12 is disposed on a side of the light guide plate 14 , and the buffer portion 16 b can be disposed between the light strip 12 and the heat sink 18 . The positioning portion 16a and the buffer portion 16b may be made of the same material and formed by integral molding, or the positioning portion 16a and the buffer portion 16b may be respectively formed of different materials and combined into the positioning member 16. The positioning member 16 can be fixed to the heat sink 18 by using a fastener such as a screw 20, because the positioning portion 16a abuts against the light bar 12 and the light guide plate 14, respectively, and the light bar 12 can be sandwiched between the positioning portion 16a and the buffer portion 16b. The positioning member 16 is limited to the heat sink 18, so that the thickness d of the positioning portion 16a above the light strip 12 is substantially the same as the gap width between the light strip 12 and the light guide plate 14. In other words, it is only necessary to preset the thickness d of the positioning portion 16a to determine the gap width between the light guide plate 14 and the light strip 12 in the finished product of each backlight module, so that the light guide plate 14 and the light strip 12 can be effectively controlled after assembly of the finished product. The gap width between the two can avoid the variation of the gap between different finished products and affect the optical brightness and uniformity of light emission, so the finished product yield and optical quality stability of the backlight module can be improved. In addition, the buffer portion 16b located under the light bar 12 can provide an elastic deformation effect, thereby absorbing the stress generated when the light guide plate 14 is heated and contracted, that is, the buffer portion 16b can provide an elastic buffer space to compensate the heat of the light guide plate 14 The gap variation caused by the cold shrinkage ensures that the optical quality is not affected by temperature and has better stability.
於一實施例中，定位部16a例如可為朝向導光板14方向凸伸的至少一擋塊，且緩衝部16b例如可為一彎折結構以提供彈性緩衝效果。舉例而言，如圖3所示，每一個定位件16例如可具有間隔一段距離設置的兩個角柱形擋塊22，角柱形擋塊22沿凸伸方向上的高度h可決定導光板14與光條12間的間隙寬度，且角柱形擋塊22下方形成一U字型彎折結構24。當然，擋塊的外形及數量並不限定，如圖4所示，每一個定位件16例如可具有間隔一段距離設置的四個弧形擋塊32。另外，彎折結構的外形同樣不限定，如圖5所示，弧形擋塊32下方可形成一S字型彎折結構34以提供更多的彈性緩衝空間。雖然僅需一定位件16即能獲得前述實施例的效果，但如圖6所示，於另一背光模組30中，亦可於一光條12上分佈具不同外形的複數個定位件16，且擋塊22、32的形成位置不疊合光條12上的發光二極體12a。另外，可考慮光條12上的發光二極體12a本身的發散角度選擇擋塊22、32外形，以減少擋塊22、32與導光板14的接觸面積並避免擋塊22、32擋到發光二極體12a。另外，若欲增加定位件16的強度，可增加定位件16或擋塊22、32的長度或數量。In one embodiment, the positioning portion 16a can be, for example, at least one stopper protruding toward the light guide plate 14, and the buffer portion 16b can be, for example, a bent structure to provide an elastic cushioning effect. For example, as shown in FIG. 3, each of the positioning members 16 may have, for example, two angular column-shaped stoppers 22 disposed at a distance, and the height h of the angular column-shaped stoppers 22 in the protruding direction may determine the light guide plate 14 and A gap width between the strips 12 and a U-shaped bent structure 24 are formed below the corner post 22. Of course, the shape and number of the stoppers are not limited. As shown in FIG. 4, each of the positioning members 16 may have, for example, four arc-shaped stoppers 32 disposed at a distance. In addition, the shape of the bent structure is also not limited. As shown in FIG. 5, an S-shaped bent structure 34 may be formed under the curved stop 32 to provide more elastic buffer space. Although only one positioning member 16 is required to obtain the effect of the foregoing embodiment, as shown in FIG. 6, in another backlight module 30, a plurality of positioning members 16 having different shapes may be distributed on a light bar 12. And the positions at which the stoppers 22, 32 are formed do not overlap the light-emitting diodes 12a on the light bar 12. In addition, the shape of the stoppers 22, 32 can be selected in consideration of the divergence angle of the light-emitting diode 12a on the light strip 12 to reduce the contact area of the stoppers 22, 32 with the light guide plate 14 and prevent the stops 22, 32 from blocking the light. Dipole 12a. Additionally, if the strength of the positioning member 16 is to be increased, the length or number of the positioning members 16 or the stops 22, 32 may be increased.
綜上所述，本發明之各個實施例至少具有下列其中一個優點：In summary, various embodiments of the present invention have at least one of the following advantages:
藉由上述各個實施例之設計，因定位件的定位部分別抵靠光條及導光板，故僅需預設定位部的厚度即可決定每個背光模組成品中的導光板與光條兩者的間隙寬度，如此可有效管控成品組裝後導光板與光條兩者的間隙寬度，避免不同成品的間隙產生變異而影響光學輝度及出光均勻性，故可提高背光模組的成品良率及光學品質穩定度。另外，定位件的緩衝部可提供一彈性緩衝空間以補償導光板因熱漲冷縮造成的間隙變異，確保光學品質不受溫度影響而具有較佳的穩定度。According to the design of the above embodiments, since the positioning portions of the positioning members respectively abut against the light bar and the light guide plate, only the thickness of the positioning portion can be preset to determine the light guide plate and the light bar in each finished backlight module. The gap width of the device can effectively control the gap width between the light guide plate and the light strip after assembly of the finished product, and avoid the variation of the gap between different finished products, thereby affecting the optical brightness and the uniformity of light emission, thereby improving the yield of the backlight module and Optical quality stability. In addition, the buffer portion of the positioning member can provide an elastic buffer space to compensate for the gap variation of the light guide plate due to thermal expansion and contraction, and to ensure optical quality is not affected by temperature and has better stability.
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。本說明書或申請專利範圍中提及的“第一”、“第二”等用語僅用以命名元件(element)的名稱或區別不同實施例或範圍，而並非用來限制元件數量上的上限或下限。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. The terms "first", "second", and the like, as used in the specification or the scope of the claims, are used to refer to the names of the elements or to distinguish different embodiments or ranges, and are not intended to limit the upper limit of the number of elements or Lower limit.
10、30．．．背光模組10, 30. . . Backlight module
12．．．光條12. . . Light bar
12a．．．發光二極體12a. . . Light-emitting diode
14．．．導光板14. . . Light guide
16．．．定位件16. . . Positioning member
16a．．．定位部16a. . . Positioning department
16b．．．緩衝部16b. . . Buffer section
18．．．散熱片18. . . heat sink
20．．．螺絲20. . . Screw
22、32．．．擋塊22, 32. . . Stoppers
24、34．．．彎折結構24, 34. . . Bending structure
100．．．背光模組100. . . Backlight module
102．．．導光板102. . . Light guide
104．．．光條104. . . Light bar
106．．．螺絲106. . . Screw
108．．．散熱片108. . . heat sink
d．．．定位部厚度d. . . Positioning thickness
h．．．擋塊高度h. . . Stop height
圖1為依本發明一實施例的背光模組的立體示意圖。1 is a perspective view of a backlight module according to an embodiment of the invention.
圖2為圖1的剖面放大示意圖。Figure 2 is an enlarged cross-sectional view of Figure 1.
圖3為依本發明一實施例的定位件的示意圖。3 is a schematic view of a positioning member in accordance with an embodiment of the present invention.
圖4為依本發明另一實施例的定位件的示意圖。4 is a schematic view of a positioning member according to another embodiment of the present invention.
圖5為依本發明另一實施例的定位件的示意圖。Figure 5 is a schematic illustration of a positioning member in accordance with another embodiment of the present invention.
圖6為依本發明另一實施例的背光模組的立體示意圖。FIG. 6 is a perspective view of a backlight module according to another embodiment of the present invention.
圖7為一習知背光模組的示意圖。FIG. 7 is a schematic diagram of a conventional backlight module.
10．．．背光模組10. . . Backlight module
12．．．光條12. . . Light bar
14．．．導光板14. . . Light guide
16．．．定位件16. . . Positioning member
16a．．．定位部16a. . . Positioning department
16b．．．緩衝部16b. . . Buffer section
18．．．散熱片18. . . heat sink
20．．．螺絲20. . . Screw
d．．．定位部厚度d. . . Positioning thickness
Claims (12)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101104824A TW201333602A (en) | 2012-02-15 | 2012-02-15 | Backlight module |
| CN2013100277503A CN103256526A (en) | 2012-02-15 | 2013-01-24 | Backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101104824A TW201333602A (en) | 2012-02-15 | 2012-02-15 | Backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW201333602A true TW201333602A (en) | 2013-08-16 |
Family
ID=48960630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW101104824A TW201333602A (en) | 2012-02-15 | 2012-02-15 | Backlight module |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103256526A (en) |
| TW (1) | TW201333602A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672620A (en) * | 2013-12-16 | 2014-03-26 | 深圳市华星光电技术有限公司 | Backlight module |
| TWI843844B (en) * | 2019-04-23 | 2024-06-01 | 荷蘭商露明控股公司 | Method of led light engine assembly |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211207017U (en) * | 2020-02-13 | 2020-08-07 | 合肥京东方视讯科技有限公司 | Display module and electronic equipment with same |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2192430B1 (en) * | 2008-11-27 | 2016-04-06 | Samsung Electronics Co., Ltd. | Backlight unit |
| CN102042533A (en) * | 2009-10-22 | 2011-05-04 | 友达光电股份有限公司 | Backlight module |
| US20120293728A1 (en) * | 2010-01-26 | 2012-11-22 | Sharp Kabushiki Kaisha | Lighting device, display device and television receiver |
| CN202067045U (en) * | 2011-05-10 | 2011-12-07 | 深圳市华星光电技术有限公司 | Liquid crystal display device and rear shell of liquid crystal display device |
-
2012
- 2012-02-15 TW TW101104824A patent/TW201333602A/en unknown
-
2013
- 2013-01-24 CN CN2013100277503A patent/CN103256526A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672620A (en) * | 2013-12-16 | 2014-03-26 | 深圳市华星光电技术有限公司 | Backlight module |
| CN103672620B (en) * | 2013-12-16 | 2015-09-09 | 深圳市华星光电技术有限公司 | Backlight module |
| TWI843844B (en) * | 2019-04-23 | 2024-06-01 | 荷蘭商露明控股公司 | Method of led light engine assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103256526A (en) | 2013-08-21 |
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