TWI487985B - Backlight module - Google Patents
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- TWI487985B TWI487985B TW101143693A TW101143693A TWI487985B TW I487985 B TWI487985 B TW I487985B TW 101143693 A TW101143693 A TW 101143693A TW 101143693 A TW101143693 A TW 101143693A TW I487985 B TWI487985 B TW I487985B
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Description
本發明是有關於一種背光模組，且特別是有關於一種具有導光元件之背光模組。The present invention relates to a backlight module, and more particularly to a backlight module having a light guiding element.
依據光源設置的位置，背光模組可分為直下式背光模組及側光式背光模組。相較於側光式背光模組，直下式背光模組係藉由均勻設置光源來發光，而可獲得較佳之發光均勻度，進而提升使用此背光模組之顯示裝置的畫面細膩度。According to the position of the light source, the backlight module can be divided into a direct type backlight module and an edge light type backlight module. Compared with the edge-lit backlight module, the direct-lit backlight module can achieve better illumination uniformity by uniformly arranging the light source, thereby improving the image detail of the display device using the backlight module.
由於發光二極體具有輕薄短小之特性，且具有良好之發光效能，因此一般之背光模組係利用發光二極體來作為光源。然而，發光二極體之製造成本較習知之燈管高，且直下式背光模組需要設置大量之發光二極體，才可有效提升背光模組之發光均勻度，進而增加背光模組之製造成本。Since the light-emitting diode has the characteristics of lightness, thinness and shortness, and has good light-emitting efficiency, a general backlight module uses a light-emitting diode as a light source. However, the manufacturing cost of the light-emitting diode is higher than that of the conventional light tube, and the direct-type backlight module needs to be provided with a large number of light-emitting diodes, so as to effectively improve the uniformity of illumination of the backlight module, thereby increasing the manufacture of the backlight module. cost.
一般係藉由減少發光二極體之數量來降低背光模組之製造成本。但此方法亦會降低背光模組之發光均勻度，進而降低背光模組之發光效能。據此，為了有效降低背光模組之製造成本且不影響背光模組之發光均勻度，一般之做法係設置一透鏡來改變發光二極體之發光光型或增加背光模組之厚度。然而，上述之兩種做法雖可有效提升發光二極體減少後之背光模組的發光均勻度，但卻無法有效降低背光模組之製造成本Generally, the manufacturing cost of the backlight module is reduced by reducing the number of light emitting diodes. However, this method also reduces the uniformity of illumination of the backlight module, thereby reducing the luminous efficacy of the backlight module. Accordingly, in order to effectively reduce the manufacturing cost of the backlight module without affecting the uniformity of illumination of the backlight module, a general method is to set a lens to change the light-emitting type of the light-emitting diode or increase the thickness of the backlight module. However, although the above two methods can effectively improve the uniformity of illumination of the backlight module after the reduction of the LED, it cannot effectively reduce the manufacturing cost of the backlight module.
有鑑於此，亟須提供一種背光模組，以改善習知之背 光模組的缺陷，從而提供一種可提高發光均勻度，且減少光源設置之數量，並降低製造成本之背光模組。In view of this, it is not necessary to provide a backlight module to improve the conventional back. The defect of the optical module provides a backlight module which can improve the uniformity of illumination, reduce the number of light source settings, and reduce the manufacturing cost.
因此，本發明之一態樣是在提供一種背光模組，其係於導光元件上設置一錐狀鏤空部，以調整光源之發光光型，而提高背光模組之發光均勻度，進而提高背光模組之發光效能。Therefore, in one aspect of the present invention, a backlight module is provided, which is provided with a tapered hollow portion on the light guiding element to adjust the light emitting pattern of the light source, thereby improving the uniformity of illumination of the backlight module, thereby improving The luminous efficacy of the backlight module.
根據本發明之上述態樣，提出一種背光模組。在一實施例中，此背光模組包含背板、至少一導光元件、至少一光源及擴散板。導光元件係設置於背板上，且每一個導光元件包含反射面、第一出光面、第二出光面及錐狀鏤空部。反射面係相對於背板設置，第一出光面係相對於反射面設置，而第二出光面係接合於第一出光面與反射面之間，且錐狀鏤空部係用以接收外部光線。錐狀鏤空部包含底端部與頂端部。底端部係位於反射面，且具有第一鏤空截面積。頂端部則係相對於底端部，且具有第二鏤空截面積。第二鏤空截面積係小於第一鏤空截面積。至少一光源係相對於至少一導光元件設置於背板上。擴散板則係相對於第一出光面設置。According to the above aspect of the invention, a backlight module is proposed. In one embodiment, the backlight module includes a back plate, at least one light guiding element, at least one light source, and a diffusing plate. The light guiding elements are disposed on the back plate, and each of the light guiding elements includes a reflecting surface, a first light emitting surface, a second light emitting surface, and a tapered hollow portion. The reflective surface is disposed relative to the back plate, the first light exiting surface is disposed relative to the reflective surface, and the second light exiting surface is coupled between the first light emitting surface and the reflective surface, and the tapered hollow portion is configured to receive external light. The tapered hollow portion includes a bottom end portion and a top end portion. The bottom end portion is located on the reflecting surface and has a first hollow cross-sectional area. The top end portion is opposite the bottom end portion and has a second hollow cross-sectional area. The second hollow cross-sectional area is smaller than the first hollow cross-sectional area. At least one light source is disposed on the backboard relative to the at least one light guiding element. The diffuser plate is disposed relative to the first light exiting surface.
依據本發明一實施例，前述之錐狀鏤空部係圓錐體或多角錐體。According to an embodiment of the invention, the tapered hollow portion is a cone or a polygonal pyramid.
依據本發明另一實施例，前述之錐狀鏤空部之頂端部具有一夾角，而此夾角大約為20°至65°。According to another embodiment of the present invention, the tip end portion of the tapered hollow portion has an included angle, and the included angle is approximately 20° to 65°.
依據本發明又一實施例，前述之錐狀鏤空部之一側壁 的剖面為曲線，而此曲線係由至少一條直線所構成。According to still another embodiment of the present invention, one side wall of the aforementioned tapered hollow portion The profile is a curve, and the curve is composed of at least one straight line.
依據本發明再一實施例，前述之每一個光源具有一發光面，且基於第一鏤空截面積為100%，發光面之面積大約為10%至100%。According to still another embodiment of the present invention, each of the foregoing light sources has a light emitting surface, and the area of the light emitting surface is about 10% to 100% based on the first hollow cross-sectional area of 100%.
依據本發明再一實施例，前述之底端部與光源之發光面的距離大約為0公釐(mm)至5mm。According to still another embodiment of the present invention, the distance between the bottom end portion and the light emitting surface of the light source is about 0 mm to 5 mm.
依據本發明再一實施例，前述之反射面、第一出光面與第二出光面之至少一面具有複數個微結構或印刷網點。According to still another embodiment of the present invention, at least one of the reflective surface, the first light-emitting surface and the second light-emitting surface has a plurality of microstructures or printed dots.
依據本發明再一實施例，前述之擴散板與背板之距離大約係20mm至45mm。According to still another embodiment of the present invention, the distance between the diffuser plate and the back plate is approximately 20 mm to 45 mm.
依據本發明再一實施例，前述之導光元件的橫切面係圓形或多角形。According to still another embodiment of the present invention, the cross section of the light guiding element is circular or polygonal.
依據本發明再一實施例，前述之多角形的至少一角包含C角或R角。According to still another embodiment of the present invention, at least one of the aforementioned polygons includes a C angle or an R angle.
依據本發明再一實施例，前述之反射面具有至少一卡榫，用以卡固導光元件於背板上。In accordance with still another embodiment of the present invention, the reflective surface has at least one latch for securing the light guiding element on the backplane.
應用本發明之背光模組，其係利用設有一錐狀鏤空部之導光元件來改變光源之發光光型，以提高背光模組之發光均勻度且減少光源之設置數量，而提高背光模組之發光效能，並降低背光模組之製造成本。The backlight module of the present invention uses a light guiding component provided with a tapered hollow portion to change the light emitting pattern of the light source, thereby improving the uniformity of illumination of the backlight module and reducing the number of light sources, and improving the backlight module. The luminous efficiency and the manufacturing cost of the backlight module are reduced.
以下仔細討論本發明實施例之製造和使用。然而，可以理解的是，實施例提供許多可應用的發明概念，其可實施於各式各樣的特定內容中。所討論之特定實施例僅供說 明，並非用以限定本發明之範圍。The making and using of the embodiments of the invention are discussed in detail below. However, it will be appreciated that the embodiments provide many applicable inventive concepts that can be implemented in a wide variety of specific content. The specific embodiments discussed are for illustrative purposes only It is not intended to limit the scope of the invention.
請參照第1圖及第1a圖，其係分別繪示依照本發明之一實施例之背光模組100的垂直剖面結構示意圖及導光元件120的垂直剖面結構示意圖。背光模組100包含背板110、至少一導光元件120、至少一光源140及擴散板150。導光元件120係設置於背板110上，且每一個導光元件120包含第一出光面121、第二出光面123、反射面125及錐狀鏤空部130。在一實施例中，錐狀鏤空部130的深度是小於導光元件120的厚度。反射面125係相對於背板110設置，而第一出光面121係相對於反射面125設置，且第二出光面123係接合於第一出光面121與反射面125之間，其中第一出光面121、第二出光面123與反射面125之至少一面可具有複數個微結構或印刷網點。在一實施例中，此些微結構可具有至少一種圖案形狀，且此圖案形狀可為V型圖案形狀、R型圖案形狀、其他合適之圖案形狀或上述圖案形狀之任意混合。錐狀鏤空部130係用以接收外部光線，且錐狀鏤空部130可為圓錐體或多角錐體。錐狀鏤空部130包含入光面135、底端部131與頂端部133。入光面135係設置於錐狀鏤空部130之內側面。底端部131係位於導光元件120之反射面125，而頂端部133則係靠近導光元件120之第一出光面121，並相對於底端部131，且頂端部133具有一夾角133a。在一實施例中，此夾角133a大約為20°至65°。頂端部133之鏤空部份的水平截面積係小於底端部131之鏤空部份的水平截面積。擴散板150係相對於第一出光面121設置。擴散板150與背板110之距 離110a大約係介於20mm至45mm之間。光源140則係相對於導光元件120設置於背板110上。此光源140具有發光面140a，且發光面140a之面積等於或小於底端部131之鏤空部份的水平截面積。底端部131與發光面140a之距離140b大約係介於0mm至5mm之間。換言之，在一實施例中光源140是設置於錐狀鏤空部130之外。Please refer to FIG. 1 and FIG. 1a , which are schematic diagrams showing the vertical cross-sectional structure of the backlight module 100 and the vertical cross-sectional structure of the light guiding element 120 according to an embodiment of the invention. The backlight module 100 includes a back plate 110 , at least one light guiding element 120 , at least one light source 140 , and a diffusion plate 150 . The light guiding elements 120 are disposed on the back plate 110, and each of the light guiding elements 120 includes a first light emitting surface 121, a second light emitting surface 123, a reflecting surface 125, and a tapered hollow portion 130. In an embodiment, the depth of the tapered hollow portion 130 is less than the thickness of the light guiding element 120. The first light-emitting surface 121 is disposed relative to the reflective surface 125, and the second light-emitting surface 123 is coupled between the first light-emitting surface 121 and the reflective surface 125, wherein the first light-emitting surface is coupled to the first light-emitting surface 121 and the reflective surface 125. At least one side of the face 121, the second light exit surface 123 and the reflective surface 125 may have a plurality of microstructures or printed dots. In an embodiment, the microstructures may have at least one pattern shape, and the pattern shape may be a V-shaped pattern shape, an R-shaped pattern shape, other suitable pattern shapes, or any mixture of the above-described pattern shapes. The tapered hollow portion 130 is for receiving external light, and the tapered hollow portion 130 may be a cone or a polygonal cone. The tapered hollow portion 130 includes a light incident surface 135, a bottom end portion 131, and a distal end portion 133. The light incident surface 135 is disposed on the inner side surface of the tapered hollow portion 130. The bottom end portion 131 is located on the reflecting surface 125 of the light guiding element 120, and the top end portion 133 is adjacent to the first light emitting surface 121 of the light guiding element 120, and is opposite to the bottom end portion 131, and the top end portion 133 has an angle 133a. In an embodiment, the included angle 133a is approximately 20° to 65°. The horizontal cross-sectional area of the hollow portion of the top end portion 133 is smaller than the horizontal cross-sectional area of the hollow portion of the bottom end portion 131. The diffusion plate 150 is disposed relative to the first light-emitting surface 121. The distance between the diffusion plate 150 and the back plate 110 The distance from 110a is between 20mm and 45mm. The light source 140 is disposed on the back plate 110 with respect to the light guiding element 120. The light source 140 has a light emitting surface 140a, and the light emitting surface 140a has an area equal to or smaller than a horizontal sectional area of the hollow portion of the bottom end portion 131. The distance 140b between the bottom end portion 131 and the light emitting surface 140a is approximately between 0 mm and 5 mm. In other words, in one embodiment the light source 140 is disposed outside of the tapered hollow portion 130.
請參照第2圖，第2圖係繪示依照第1圖之背光模組100的導光元件120與光源140之垂直剖面結構示意圖。光源140之光141先由發光面140a射出。然後，光141由入光面135進入導光元件120中，藉由入光面135改變光141之路徑。接著，部份之光141由第一出光面121射出而形成光143，且其他部份之光141則被第一出光面121反射而形成光143a。之後，藉由反射面125可使部份之光143a由第一出光面121射出而形成光145，且其他部份之光145則被第一出光面121反射而形成光145a。相同地，藉由反射面125可使光145a由第二出光面123射出而形成光147。Please refer to FIG. 2 . FIG. 2 is a schematic vertical cross-sectional view of the light guiding element 120 and the light source 140 of the backlight module 100 according to FIG. 1 . The light 141 of the light source 140 is first emitted by the light emitting surface 140a. Then, the light 141 enters the light guiding element 120 from the light incident surface 135, and the path of the light 141 is changed by the light incident surface 135. Then, part of the light 141 is emitted from the first light-emitting surface 121 to form the light 143, and the other portion of the light 141 is reflected by the first light-emitting surface 121 to form the light 143a. Thereafter, a portion of the light 143a is emitted from the first light-emitting surface 121 by the reflecting surface 125 to form the light 145, and the other portion of the light 145 is reflected by the first light-emitting surface 121 to form the light 145a. Similarly, the light 145a can be emitted from the second light exit surface 123 by the reflecting surface 125 to form the light 147.
當上述之底端部131之鏤空部份的水平截面積為100%時，前述之發光面140a之面積大約為10%至100%。倘若發光面140a之面積小於10%時，背光模組須設置更多之光源140才可滿足背光模組100之亮度，進而增加製造成本。若發光面140a之面積大於100%時，光源140發出之部份的光141無法照射至入光面135，而直接由導光元件120射出，進而降低背光模組之發光均勻度。When the horizontal cross-sectional area of the hollow portion of the bottom end portion 131 is 100%, the area of the aforementioned light-emitting surface 140a is approximately 10% to 100%. If the area of the light-emitting surface 140a is less than 10%, the backlight module must be provided with more light sources 140 to meet the brightness of the backlight module 100, thereby increasing the manufacturing cost. If the area of the light-emitting surface 140a is greater than 100%, the portion of the light 141 emitted by the light source 140 cannot be incident on the light-incident surface 135, and is directly emitted by the light-guiding element 120, thereby reducing the uniformity of illumination of the backlight module.
請參照第1a圖及第2圖，倘若上述之頂端部133之夾 角133a的角度大於65°時，前述之入光面135無法有效將光源140發出之光141導入導光元件120中，而降低背光模組100之發光均勻度。若頂端部133之夾角133a的角度小於20°時，背光模組100須調整導光元件120之厚度才可避免發光面140a之面積大於底端部131之鏤空部份的水平截面積，進而增加導光元件120之製造成本。Please refer to Figure 1a and Figure 2, provided that the above-mentioned tip portion 133 is clipped. When the angle of the angle 133a is greater than 65°, the light incident surface 135 cannot effectively introduce the light 141 emitted by the light source 140 into the light guiding element 120, thereby reducing the uniformity of illumination of the backlight module 100. If the angle of the angle 133a of the top end portion 133 is less than 20°, the backlight module 100 must adjust the thickness of the light guiding element 120 to prevent the area of the light emitting surface 140a from being larger than the horizontal cross-sectional area of the hollow portion of the bottom end portion 131, thereby increasing The manufacturing cost of the light guiding element 120.
上述之導光元件120的橫切面可為圓形或多角形。在一實施例中，倘若導光元件120之橫切面為多角形時，此多角形之至少一角包含C角或R角。請參照第3圖，其係繪示沿著第1圖中橫切線A-A剖切之導光元件120的水平剖面結構示意圖。當導光元件120之剖面為四角形時，導光元件120之角120a、120b、120c及120d之至少一者可為C角或R角，以調整光源之發光光型，而提高背光模組之發光均勻度。請參照第4圖，其係繪示本發明之另一實施例之導光元件220的水平剖面結構示意圖。當錐狀鏤空部230係四角錐體時，錐狀鏤空部230之橫切面則為四角形。The cross section of the light guiding element 120 described above may be circular or polygonal. In one embodiment, if the cross section of the light guiding element 120 is polygonal, at least one corner of the polygon includes a C angle or an R angle. Please refer to FIG. 3, which is a schematic diagram showing the horizontal cross-sectional structure of the light guiding element 120 taken along the transverse line A-A in FIG. When the cross section of the light guiding element 120 is a quadrangle, at least one of the corners 120a, 120b, 120c, and 120d of the light guiding element 120 may be a C angle or an R angle to adjust the light emission type of the light source, thereby improving the backlight module. Luminous uniformity. Please refer to FIG. 4 , which is a schematic diagram showing a horizontal cross-sectional structure of a light guiding element 220 according to another embodiment of the present invention. When the tapered hollow portion 230 is a quadrangular pyramid, the cross-section of the tapered hollow portion 230 is a quadrangular shape.
請參照第5圖，其係繪示依照本發明之另一實施例之導光元件320的垂直剖面結構示意圖。導光元件320之錐狀鏤空部330之一側壁的剖面為一曲線330a，而曲線330a係由斜率不同之直線330b、330c與330d所構成。在一實施例中，曲線330a亦可僅由一直線所構成，而形成鏡面。在另一實施例中，直線330b、330c與330d之斜率可為漸增、漸減或任意排列。Referring to FIG. 5, a schematic vertical cross-sectional view of a light guiding element 320 according to another embodiment of the present invention is shown. The side wall of one of the tapered hollow portions 330 of the light guiding element 320 has a curved line 330a, and the curved line 330a is composed of straight lines 330b, 330c and 330d having different slopes. In one embodiment, the curve 330a may also be formed of only a straight line to form a mirror surface. In another embodiment, the slopes of the lines 330b, 330c, and 330d may be increasing, decreasing, or arbitrarily arranged.
在一實施例中，上述之導光元件的反射面可具有至少 一卡榫(未繪示)，用以將導光元件卡固於背板上，且用以固定導光元件與光源之發光面的距離。在本實施例中，卡榫可穿透光源之發光條(Light Bar)，以固定導光元件與發光條，而可避免背光模組晃動時之碰撞造成導光光件或光源受損。In an embodiment, the reflective surface of the light guiding element may have at least A card (not shown) is used to fasten the light guiding element to the back plate and to fix the distance between the light guiding element and the light emitting surface of the light source. In this embodiment, the cassette can penetrate the light bar of the light source to fix the light guiding component and the light bar, and can avoid damage of the light guiding component or the light source caused by the collision of the backlight module when shaking.
由本發明上述實施例可知，本發明之背光模組藉由導光元件所設置的錐狀鏤空部來調整光源之發光光型，以提高背光模組之發光均勻度，並減少光源設置之數量，而增加背光模組之發光效能，且降低背光模組之製造成本與體積。According to the above embodiment of the present invention, the backlight module of the present invention adjusts the illumination light type of the light source by the tapered hollow portion provided by the light guiding element, so as to improve the uniformity of illumination of the backlight module and reduce the number of light source settings. The illumination performance of the backlight module is increased, and the manufacturing cost and volume of the backlight module are reduced.
雖然本發明已以實施方式揭露如上，然其並非用以限定本發明，在本發明所屬技術領域中任何具有通常知識者，在不脫離本發明之精神和範圍內，當可作各種之更動與潤飾，因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。The present invention has been disclosed in the above embodiments, and is not intended to limit the present invention. Any one of ordinary skill in the art to which the present invention pertains can make various changes without departing from the spirit and scope of the invention. The scope of protection of the present invention is therefore defined by the scope of the appended claims.
100‧‧‧背光模組100‧‧‧Backlight module
110‧‧‧背板110‧‧‧ Backboard
110a‧‧‧距離110a‧‧‧distance
120‧‧‧導光元件120‧‧‧Light guiding elements
120a/120b/120c/120d‧‧‧角120a/120b/120c/120d‧‧‧ corner
121‧‧‧第一出光面121‧‧‧The first glazing
123‧‧‧第二出光面123‧‧‧Second glazing
125‧‧‧反射面125‧‧‧reflecting surface
130‧‧‧錐狀鏤空部130‧‧‧Cone hollow
130a‧‧‧側壁130a‧‧‧ Sidewall
131‧‧‧底端部131‧‧‧Bottom
133‧‧‧頂端部133‧‧‧Top part
133a‧‧‧夾角133a‧‧‧ angle
135‧‧‧入光面135‧‧‧Into the glossy surface
140‧‧‧光源140‧‧‧Light source
140a‧‧‧發光面140a‧‧‧Lighting surface
140b‧‧‧距離140b‧‧‧distance
141‧‧‧光141‧‧‧Light
143‧‧‧光143‧‧‧Light
143a‧‧‧光143a‧‧‧Light
145‧‧‧光145‧‧‧Light
145a‧‧‧光145a‧‧‧Light
147‧‧‧光147‧‧‧Light
150‧‧‧擴散板150‧‧‧Diffuser
220‧‧‧導光元件220‧‧‧Light guiding elements
230‧‧‧錐狀鏤空部230‧‧‧Cone hollow
320‧‧‧導光元件320‧‧‧Light guiding elements
330‧‧‧錐狀鏤空部330‧‧‧Cone hollow
330a‧‧‧曲線330a‧‧‧ Curve
330b/330c/330d‧‧‧直線330b/330c/330d‧‧‧ Straight line
為讓本發明之上述和其他目的、特徵、優點與實施例能更明顯易懂，所附圖式之說明如下：第1圖係繪示依照本發明之一實施例之背光模組的垂直剖面結構示意圖。The above and other objects, features, advantages and embodiments of the present invention will become more <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; Schematic.
第1a圖係繪示依照本發明之一實施例之導光元件的垂直剖面結構示意圖。Fig. 1a is a schematic vertical sectional view showing a light guiding element according to an embodiment of the present invention.
第2圖係繪示依照第1圖之背光模組的導光元件與光源之垂直剖面結構示意圖。2 is a schematic cross-sectional view showing the light guiding element and the light source of the backlight module according to FIG. 1 .
第3圖係繪示沿著第1圖中剖面線A-A剖切之導光元件的水平剖面結構示意圖。Fig. 3 is a schematic horizontal sectional view showing a light guiding member taken along a line A-A in Fig. 1.
第4圖係繪示依照本發明之另一實施例之導光元件的水平剖面結構示意圖4 is a schematic horizontal cross-sectional view of a light guiding element according to another embodiment of the present invention.
第5圖係繪示依照本發明之另一實施例之導光元件的垂直剖面結構示意圖。Fig. 5 is a schematic vertical sectional view showing a light guiding element according to another embodiment of the present invention.
100‧‧‧背光模組100‧‧‧Backlight module
110‧‧‧背板110‧‧‧ Backboard
110a‧‧‧距離110a‧‧‧distance
120‧‧‧導光元件120‧‧‧Light guiding elements
121‧‧‧第一出光面121‧‧‧The first glazing
123‧‧‧第二出光面123‧‧‧Second glazing
125‧‧‧反射面125‧‧‧reflecting surface
130‧‧‧錐狀鏤空部130‧‧‧Cone hollow
133a‧‧‧夾角133a‧‧‧ angle
140‧‧‧光源140‧‧‧Light source
140a‧‧‧發光面140a‧‧‧Lighting surface
140b‧‧‧距離140b‧‧‧distance
150‧‧‧擴散板150‧‧‧Diffuser
Claims (11)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101143693A TWI487985B (en) | 2012-11-22 | 2012-11-22 | Backlight module |
| CN201310027373.3A CN103836458A (en) | 2012-11-22 | 2013-01-24 | Backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101143693A TWI487985B (en) | 2012-11-22 | 2012-11-22 | Backlight module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201421122A TW201421122A (en) | 2014-06-01 |
| TWI487985B true TWI487985B (en) | 2015-06-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW101143693A TWI487985B (en) | 2012-11-22 | 2012-11-22 | Backlight module |
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| Country | Link |
|---|---|
| CN (1) | CN103836458A (en) |
| TW (1) | TWI487985B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200844566A (en) * | 2007-05-03 | 2008-11-16 | Chi Mei Optoelectronics Corp | Backlight module and liquid crystal display |
| TW200947055A (en) * | 2008-05-02 | 2009-11-16 | Ind Tech Res Inst | A backlight module |
| US20110090672A1 (en) * | 2009-10-16 | 2011-04-21 | Tsinghua University | Light guide plates and backlight module |
| TW201122583A (en) * | 2009-12-18 | 2011-07-01 | Hon Hai Prec Ind Co Ltd | Light guide plate and backlight module |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4951286B2 (en) * | 2006-07-21 | 2012-06-13 | 富士フイルム株式会社 | Unit light guide plate, light guide plate unit, and planar illumination device |
| CN102239360A (en) * | 2008-12-05 | 2011-11-09 | 夏普株式会社 | Illumination device, display device, and television reception device |
| CN201757335U (en) * | 2010-07-28 | 2011-03-09 | 创维液晶器件(深圳)有限公司 | LED backlight module, liquid crystal display and display terminal |
| CN201757337U (en) * | 2010-08-06 | 2011-03-09 | 深圳帝光电子有限公司 | LED backlight device, liquid crystal display and display terminal |
-
2012
- 2012-11-22 TW TW101143693A patent/TWI487985B/en not_active IP Right Cessation
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2013
- 2013-01-24 CN CN201310027373.3A patent/CN103836458A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200844566A (en) * | 2007-05-03 | 2008-11-16 | Chi Mei Optoelectronics Corp | Backlight module and liquid crystal display |
| TW200947055A (en) * | 2008-05-02 | 2009-11-16 | Ind Tech Res Inst | A backlight module |
| US20110090672A1 (en) * | 2009-10-16 | 2011-04-21 | Tsinghua University | Light guide plates and backlight module |
| TW201122583A (en) * | 2009-12-18 | 2011-07-01 | Hon Hai Prec Ind Co Ltd | Light guide plate and backlight module |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201421122A (en) | 2014-06-01 |
| CN103836458A (en) | 2014-06-04 |
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