1354812 100年08月17日修正替換頁 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明係關於一種背光模組及採用該背光模組之液晶顯 示裝置。 【先前技術】 [0002] 液晶顯示裝置因其具有低輻射性、輕薄小及耗電低等特 點，故於使用上日漸廣泛，且隨著相關技術之成熟及創 新，其種類亦日益繁多。1354812 Correction and replacement page of August 17, 100. Description of the Invention: [Technical Field] [0001] The present invention relates to a backlight module and a liquid crystal display device using the same. [Prior Art] [0002] Liquid crystal display devices are becoming more and more widely used due to their low radiation, light weight, and low power consumption, and their types are becoming more and more diverse as the related technologies mature and innovate.
[0003] 請參閱圖1，係一種先前技術液晶顯示裝置之結構示意圖 。該液晶顯示裝置10包括層疊設置之一背光模組10 0及 一液晶顯示面板160，該背光模組100為該液晶顯示面板 160提供平面光。 [0004] 該背光模組100包括一光源110、一導光板120及一反射 片130。該光源110為複數白光發光二極體。該導光板 120包括一入光面121、一出光面122及一底面123。該出 光面122與該底面123相對設置，該入光面121係該導光 φ 板120之一側面，且同時與該出光面122及該底面123相 鄰。該光源110鄰近該導光板120之入光面121設置，該 反射片130鄰近該導光板120之底面123設置。該反射片 130包括一基底層131、一反射層133、一保護層139。該 反射層133之材質為銀，其夾於該基底層131及該保護層 139之間。 [0005] 當該液晶顯示裝置10工作時，該光源110發出之白光一部 份直接經由該導光板120射出至該液晶顯示面板160，另 一部份則經由該反射片130反射後，再經由該導光板120 096143447 表單編號 A0101 第 3 頁/共 13 頁 1003299173-0 1354812 100年08月17日修正替换頁 射出至該液晶顯示面板160進行顯示。因白光發光二極體 ‘，其發出之白光通常為不同色系光混合形成，而該反射 片130之反射層133對不同色系光之反射率不同，特別是 對藍色的反射率較低。從而，自該導光板120射出至該液 晶顯示面板160之光通常偏紅或者偏黃，導致該液晶顯示 裝置10之顯示效果亦偏黃或偏紅，而用戶對液晶顯示裝 置的顯示效果一般有其預定的要求，如亞洲用戶更傾向 於選擇偏藍色之顯示效果，故，該背光模組100及該液晶 顯示裝置10難以實現用戶預定色系之顯示效果。Please refer to FIG. 1, which is a schematic structural diagram of a prior art liquid crystal display device. The liquid crystal display device 10 includes a backlight module 100 and a liquid crystal display panel 160. The backlight module 100 provides planar light to the liquid crystal display panel 160. The backlight module 100 includes a light source 110, a light guide plate 120, and a reflective sheet 130. The light source 110 is a plurality of white light emitting diodes. The light guide plate 120 includes a light incident surface 121, a light exit surface 122, and a bottom surface 123. The light-emitting surface 122 is disposed opposite to the bottom surface 123. The light-incident surface 121 is a side surface of the light-guiding plate 120 and is adjacent to the light-emitting surface 122 and the bottom surface 123. The light source 110 is disposed adjacent to the light incident surface 121 of the light guide plate 120. The reflective sheet 130 is disposed adjacent to the bottom surface 123 of the light guide plate 120. The reflective sheet 130 includes a base layer 131, a reflective layer 133, and a protective layer 139. The material of the reflective layer 133 is silver, which is sandwiched between the base layer 131 and the protective layer 139. When the liquid crystal display device 10 is in operation, a portion of the white light emitted by the light source 110 is directly emitted to the liquid crystal display panel 160 via the light guide plate 120, and another portion is reflected by the reflective sheet 130, and then The light guide plate 120 096143447 Form No. A0101 Page 3 of 13 1003299173-0 1354812 The correction replacement page is output to the liquid crystal display panel 160 for display. Due to the white light emitting diode ', the white light emitted by the white light is usually formed by mixing different colors of light, and the reflective layer 133 of the reflective sheet 130 has different reflectances for different color lights, especially for blue. . Therefore, the light emitted from the light guide plate 120 to the liquid crystal display panel 160 is usually reddish or yellowish, and the display effect of the liquid crystal display device 10 is also yellowish or reddish, and the display effect of the user on the liquid crystal display device is generally The predetermined requirements, such as the Asian user, are more inclined to select the display effect of the bluish color. Therefore, the backlight module 100 and the liquid crystal display device 10 are difficult to achieve the display effect of the user's predetermined color system.
【發明内容】 [0006] 有鑑於此，提供一種出光為預定色系之背光模組實為必 要。 [0007] 同時，亦有必要提供一種使用該背光模組之液晶顯示裝 置。SUMMARY OF THE INVENTION [0006] In view of the above, it is necessary to provide a backlight module in which light is emitted in a predetermined color system. [0007] Meanwhile, it is also necessary to provide a liquid crystal display device using the backlight module.
[0008] —種背光模組，其包括一導光板、一相鄰該導光板之光 源及一相鄰該導光板之反射片，該反射片内包括一第二 反射結構及一第一反射結構，該光源發出之光經由該第 二反射結構及該第一反射結構反射後，混合成預定色系 之光射出。 [0009] 一種液晶顯示裝置，其包括層疊設置之一液晶顯示面板 及一背光模組，該背光模組包括一導光板、一相鄰該導 光板之光源及一相鄰該導光板之反射片，該反射片内包 括一第二反射結構及一第一反射結構，該光源發出之光 經由該第二反射結構及該第一反射結構反射後，混合成 預定色系之光射出。 096143447 表單编號 A0101 第 4 頁/共 13 頁 1003299173-0 1354812 100年08月17日修正替換頁 [0010] 一種背光模組，其包括一導光板、一相鄰該導光板之光 -源及一相鄰該導光板之反射片，該反射片内包括一第二 反射結構及一第一反射結構，該第二反射結構反射該光 源發出之光，該第一反射結構將光源發出之光轉換為與 其同色之光射出。 [0011]—種液晶顯示裝置，其包括層疊設置之一液晶顯示面板 及一背光模組，該背光模組包括一導光板、一相鄰該導 光板之光源及一相鄰該導光板之反射片，該反射片内包 括一第二反射結構及一第一反射結構，該第二反射結構[0008] A backlight module includes a light guide plate, a light source adjacent to the light guide plate, and a reflective sheet adjacent to the light guide plate. The reflective sheet includes a second reflective structure and a first reflective structure. The light emitted by the light source is reflected by the second reflective structure and the first reflective structure, and the light mixed into the predetermined color system is emitted. [0009] A liquid crystal display device includes a liquid crystal display panel and a backlight module. The backlight module includes a light guide plate, a light source adjacent to the light guide plate, and a reflective sheet adjacent to the light guide plate. The reflective sheet includes a second reflective structure and a first reflective structure. The light emitted by the light source is reflected by the second reflective structure and the first reflective structure, and the light mixed into the predetermined color system is emitted. 096143447 Form No. A0101 Page 4 of 13 1003299173-0 1354812 Correction Replacement Page of August 17, 100 [0010] A backlight module includes a light guide plate, a light source adjacent to the light guide plate, and a reflective sheet adjacent to the light guide plate, the reflective sheet includes a second reflective structure and a first reflective structure, the second reflective structure reflects light emitted by the light source, and the first reflective structure converts light emitted by the light source For the same color as the light. [0011] A liquid crystal display device comprising a liquid crystal display panel and a backlight module, wherein the backlight module comprises a light guide plate, a light source adjacent to the light guide plate, and a reflection adjacent to the light guide plate a reflective structure comprising a second reflective structure and a first reflective structure, the second reflective structure
反射該光源發出之光，該第一反射結構將光源發出之光 轉換為與其同色之光射出。 [0012] 相較於先前技術，本發明之背光模組及液晶顯示裝置之 反射片包括一第一反射結構及一第二反射結構，則經該 反射片反射之光為第一反射結構的顏色的光和第二反射 結構反射之光的混合，以使該背光模組發出預定顏色之 背光。從而實現該液晶顯示裝置利用該預定顏色之平面 光以實現預定顏色之晝面顯示效果，滿足用戶的預定需 求。 【實施•方式】 [0013] 請參閱圖2，係本發明液晶顯示裝置第一實施方式之結構 示意圖。該液晶顯示裝置20包括層疊設置之一背光模組 200及一液晶顯示面板260，該背光模組200為該液晶顯 示面板260提供平面光。 [0014] 該背光模組200包括一光源210、一導光板220及一反射 片230。該光源210為一白光發光二極體。該導光板220 096143447 表單編號 A0101 第 5 頁/共 13 頁 1003299173-0 1354812 100年08月17日核正替換頁 係一矩形壓克力平板，其包括一入光面221、一出光面 222及一底面223。該出光面222與該底面223相對設置， 該入光面221係該導光板22之一側面，且同時與該出光面 222及該底面223相鄰。該光源210鄰近該導光板220之入 光面221設置，該反射片230鄰近該導光板220之底面223 設置。The light emitted by the light source is reflected, and the first reflective structure converts light emitted by the light source into light of the same color. [0012] Compared with the prior art, the backlight module of the present invention and the reflective sheet of the liquid crystal display device include a first reflective structure and a second reflective structure, and the light reflected by the reflective sheet is the color of the first reflective structure. The light is mixed with the light reflected by the second reflective structure to cause the backlight module to emit a backlight of a predetermined color. Thereby, the liquid crystal display device realizes the planar light of the predetermined color to realize the face display effect of the predetermined color, and satisfies the predetermined requirement of the user. [Embodiment] FIG. 2 is a schematic view showing the configuration of a first embodiment of a liquid crystal display device of the present invention. The liquid crystal display device 20 includes a backlight module 200 and a liquid crystal display panel 260. The backlight module 200 provides planar light to the liquid crystal display panel 260. [0014] The backlight module 200 includes a light source 210, a light guide plate 220, and a reflective sheet 230. The light source 210 is a white light emitting diode. The light guide plate 220 096143447 Form No. A0101 Page 5 of 13 1003299173-0 1354812 The replacement page is a rectangular acrylic plate, which includes a light incident surface 221, a light exit surface 222, and A bottom surface 223. The light-emitting surface 222 is disposed opposite to the bottom surface 223. The light-incident surface 221 is a side surface of the light guide plate 22 and is adjacent to the light-emitting surface 222 and the bottom surface 223. The light source 210 is disposed adjacent to the light incident surface 221 of the light guide plate 220. The reflective sheet 230 is disposed adjacent to the bottom surface 223 of the light guide plate 220.
[0015] 該反射片230包括自下而上依次層疊設置之一基底層231 、一反射層233及一保護層239。該基底層231及該保護 層239相對設置，且夾持該反射層233。該反射層233包 括一第一反射結構234及一第二反射結構235。該第一反 射結構234為一藍色反射薄膜，入射光經由該第一反射結 構234反射後，反射光的顏色與該第一反射結構234的顏 色一致《該第一反射結構234係藍色油墨材質塗佈於該基 底層231相鄰該保護層239之表面形成。該第二反射結構 235疊設於該第一反射結構234上，其為一原色反射薄膜 ，且設置有規則排列之複數圓形通孔236。入射光經由該 第二反射結構235無圓形通孔236之區域反射後，反射光 的顏色與入射光的顏色保持一致。該第二反射結構235之 材質為銀。 [0016] 當該液晶顯示裝置20工作時，該光源210射出之光經由該 導光板220之入光面221進入該導光板220。射入該導光 板220的入射光一部份光於該導光板220内經由該出光面 222射出至該液晶顯示面板260，另一部份光則經由該導 光板220之底面223射出至該反射片230。 [0017] 射至該反射片230之光一部份經由該保護層239射至該第 096143447 表單編號A0101 第6頁/共13頁 1003299173-0 135,4812 100年08月17日按正替換頁 二反射結構235，再經由該第二反射結構235無圓形通孔 236之區域反射回該導光板220。另一部份光則經由該第 二反射結構235之複數圓形通孔236射至該第一反射結構 234 ’該第一反射結構234對應反射藍色反射光，該反射 藍色反射光依序經由該複數通孔236及該保護層239反射 回該導光板220。該藍色反射光與該導光板220内之其他 光進行混合，以射出偏藍色之光至該液晶顯示面板260 ’ 實現該液晶顯示裝置20的偏藍顯示效果。 • [0018] 相較於先前技術，本發明液晶顯示裝置20之反射片230包 括一第一反射結構234及一第二反射結構235，入射至該 反射片230之光經由該第一反射結構234反射後，將射出 與該第一反射結構234顏色一致之藍色反射光，從而使得 射入該液晶顯示面板260之光為偏藍色之白光，實現該液 晶顯示裝置20偏藍的顯示效果。另，該反射片230之第二 反射結構235具有複數圓形通孔236，該複數圓形通孔 236的數量及大小可控制射至該第一反射結構234之光之 • 數量’從而控制該藍色反射光之數量，以控制該背光模 組200射出之光偏藍的程度。 [0019] 請參閱圖3 ’係本發明液晶顯示裝置第二實施方式之結構 示意圖。該液晶顯示裝置30與該液晶顯示裝置20大致相 同’其主要區別在於：反射片330之反射層333之第二反 射結構335為一白色反射薄膜，其材質係由白色油墨。該 第一反射結構334為一由複數藍色粒子排列形成之藍色粒 子層’其内嵌於該第二反射結構335，可在該反射片330 在製作過裎中，將複數藍色粒子混於白色油墨中而形成 096143447 表單編號A0101 第7頁/共13頁 1003299173-0 1354812 . ____ 100年08月17日核正替換頁 [0020] 該液晶顯示裝置30工作時，該光源310發射之白光在經由 該反射片330之第一反射結構334反射後，反射出藍色反 射光與直接經由該第二反射結構335反射之白光進行混合 ，以射出偏藍色之白光至該液晶顯示面板360。另外，由 於該第一反射結構334之藍色粒子對射入其之光具有散射 作用，從而可使從該反射片330射出之光更均勻，使該液 晶顯示裝置30均勻顯示。[0015] The reflective sheet 230 includes a base layer 231, a reflective layer 233, and a protective layer 239 stacked in this order from bottom to top. The base layer 231 and the protective layer 239 are disposed opposite to each other and sandwich the reflective layer 233. The reflective layer 233 includes a first reflective structure 234 and a second reflective structure 235. The first reflective structure 234 is a blue reflective film. After the incident light is reflected by the first reflective structure 234, the color of the reflected light is consistent with the color of the first reflective structure 234. The first reflective structure 234 is blue ink. A material is applied to the surface of the base layer 231 adjacent to the protective layer 239. The second reflective structure 235 is stacked on the first reflective structure 234, which is a primary color reflective film, and is provided with a plurality of circular through holes 236 regularly arranged. After the incident light is reflected by the region of the second reflective structure 235 without the circular through hole 236, the color of the reflected light is consistent with the color of the incident light. The second reflective structure 235 is made of silver. [0016] When the liquid crystal display device 20 is in operation, the light emitted from the light source 210 enters the light guide plate 220 via the light incident surface 221 of the light guide plate 220. A portion of the incident light incident on the light guide plate 220 is emitted into the light guide plate 220 through the light exit surface 222 to the liquid crystal display panel 260, and another portion of the light is emitted to the reflective sheet 230 via the bottom surface 223 of the light guide plate 220. . [0017] A portion of the light that is incident on the reflective sheet 230 is incident through the protective layer 239 to the 096143447 Form No. A0101 Page 6 / Total 13 Page 1003299173-0 135, 4812 100 August 100, according to the replacement page 2 The reflective structure 235 is reflected back to the light guide plate 220 via the region of the second reflective structure 235 without the circular through holes 236. The other part of the light is incident on the first reflective structure 234 via the plurality of circular through holes 236 of the second reflective structure 235. The first reflective structure 234 correspondingly reflects the blue reflected light, and the reflected blue reflected light is sequentially passed through The plurality of vias 236 and the protective layer 239 are reflected back to the light guide plate 220. The blue reflected light is mixed with other light in the light guide plate 220 to emit blue light to the liquid crystal display panel 260' to realize a bluish display effect of the liquid crystal display device 20. The reflective sheet 230 of the liquid crystal display device 20 of the present invention includes a first reflective structure 234 and a second reflective structure 235. The light incident on the reflective sheet 230 passes through the first reflective structure 234. After the reflection, the blue reflected light that matches the color of the first reflective structure 234 is emitted, so that the light incident on the liquid crystal display panel 260 is a bluish white light, and the display effect of the liquid crystal display device 20 is blue. In addition, the second reflective structure 235 of the reflective sheet 230 has a plurality of circular through holes 236, and the number and size of the plurality of circular through holes 236 can control the number of light incident on the first reflective structure 234 to control the The amount of blue reflected light is to control the degree of bluishness of the light emitted by the backlight module 200. [0019] Please refer to FIG. 3, which is a schematic structural view of a second embodiment of a liquid crystal display device of the present invention. The liquid crystal display device 30 is substantially the same as the liquid crystal display device 20. The main difference is that the second reflective structure 335 of the reflective layer 333 of the reflective sheet 330 is a white reflective film made of white ink. The first reflective structure 334 is a blue particle layer formed by arranging a plurality of blue particles embedded in the second reflective structure 335, and the plurality of blue particles can be mixed in the reflective sheet 330. Formed in white ink 096143447 Form No. A0101 Page 7 / Total 13 Page 1003299173-0 1354812 . ____ August 17th, 2006, the replacement page [0020] When the liquid crystal display device 30 is in operation, the white light emitted by the light source 310 After being reflected by the first reflective structure 334 of the reflective sheet 330, the reflected blue reflected light is mixed with the white light directly reflected by the second reflective structure 335 to emit blueish white light to the liquid crystal display panel 360. Further, since the blue particles of the first reflection structure 334 have a scattering effect on the light incident thereon, the light emitted from the reflection sheet 330 can be made more uniform, and the liquid crystal display device 30 can be uniformly displayed.
[0021] 惟，本發明液晶顯示裝置並不限於上述實施方式之所述 ，其中該反射片第一反射結構與該第二反射結構之相對 位置可以互換，以使射至該反射片之光線依序經過該第 一反射結構及第二反射結構◊另，該反射片之第二反射 結構之材質可為鋁等具有反射功能之材質。該光源可為 冷陰極燈管等，其發出之光束亦可為其他色系，如白偏 綠色，則該第一反射結構之顏色亦依據該光源發出之光 的顏色進行改變，可為其他色系之材質製成，如綠色， 與光源配合以獲得用戶預定色系之光。 [0022] 綜上所述，本發明確已符合發明之要件，爰依法提出專 利申請。惟，以上所述者僅為本發明之較佳實施方式， 本發明之範圍並不以上述實施方式為限，舉凡熟悉本案 技藝之人士援依本發明之精神所作之等效修飾或變化， 皆應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 [0023] 圖1係一種先前技術液晶顯示裝置之結構示意圖。 096143447 表單編號A0101 第8頁/共13頁 1003299173-0 1354812 100年08月17日修正替_頁 [0024] 圖2係本發明液晶顯示裝置第一實施方式之結構示意圖。 [0025] 圖3係本發明液晶顯示裝置第二實施方式之結構示意圖。 【主要元件符號說明】[0021] However, the liquid crystal display device of the present invention is not limited to the above embodiments, wherein the relative positions of the first reflective structure and the second reflective structure of the reflective sheet are interchangeable, so that the light incident on the reflective sheet is The material of the second reflective structure of the reflective sheet may be a material having a reflective function such as aluminum. The light source may be a cold cathode lamp or the like, and the emitted light beam may also be other color systems. If the white color is greenish, the color of the first reflective structure is also changed according to the color of the light emitted by the light source, and may be other colors. The material of the system, such as green, is matched with the light source to obtain the light of the user's predetermined color. [0022] In summary, the present invention has indeed met the requirements of the invention, and the patent application is filed according to law. However, the above description is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and equivalent modifications or variations made by those skilled in the art in light of the spirit of the present invention are It should be covered by the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS [0023] FIG. 1 is a schematic structural view of a prior art liquid crystal display device. 096143447 Form No. A0101 Page 8 of 13 1003299173-0 1354812 Correction of the first embodiment of the liquid crystal display device of the present invention. [0024] FIG. 3 is a schematic structural view of a second embodiment of a liquid crystal display device of the present invention. [Main component symbol description]
[0026] 液晶顯示裝置：20、30 [0027] 背光模組：200 [0028] 光源：2 1 0、31 0 [0029] 導光板：220 [0030] 入光面：2 21 [0031] 出光面：222 [0032] 底面：223 [0033] 反射片：230、330 [0034] 基底層：231 [0035] 反射層：233、333 [0036] 第一反射結構：234、334 [0037] 第二反射結構：235、335 [0038] 圓形通孔：236 [0039] 保護層：239 [0040] 液晶顯示面板：260、360 096143447 表單編號A0101 第9頁/共13頁 1003299173-0[0026] Liquid crystal display device: 20, 30 [0027] backlight module: 200 [0028] Light source: 2 1 0, 31 0 [0029] Light guide plate: 220 [0030] Light-in surface: 2 21 [0031] Light-emitting surface : 222 [0032] bottom surface: 223 [0033] reflective sheet: 230, 330 [0034] base layer: 231 [0035] reflective layer: 233, 333 [0036] first reflective structure: 234, 334 [0037] second reflection Structure: 235, 335 [0038] Circular through hole: 236 [0039] Protective layer: 239 [0040] Liquid crystal display panel: 260, 360 096143447 Form number A0101 Page 9 / Total 13 page 1003299173-0