508422 經濟部智慧財產局員工消費合作社印製 A7 —------B7___ 五、發明說明（1 2 ) [發明所屬技術領域] 本發明係關於一種背光器及構成該背光器之光源蓋與 光源用反光器’可用於例如液晶顯示器之顯示裝置。 [習知技術] 液晶電視機、個人電腦等之液晶顯示裝置用背光器多 採用邊緣照明（edge light)方式。邊緣照明方式係自背光器 單元所具備之導光板之側端面（入光端面）所導入之光，由 出光面成面發光照射液晶顯示裝置之方式。光源多採線狀 光源對向配置於導光板之入光端面。 第10圖為習知之邊緣照明方式之背光器之構成的立 體圖。如圖所示，背光器係具備導光板〗0、反射板η、稜 鏡片12及保護片（未圖示）所構成。導光板1()係平面視為 長方形狀丙烯酸樹脂製的矩形板，上面（出光面）3與下面 (反射面）2呈非平行楔形狀。導光板之厚壁側之邊緣面 為入光端面4，面對該入光端面4安裝有線狀光源5。 導光板10之出光面3施以抛光加工，其表面粗糙處具 規定之漸層圖案（gradation pattern)。導光板1〇之反射面 2’係形成在平行設置有複數個剖面形狀呈大略等腰三角形 之凸條的稜鏡面，其稜線方向為線狀光線5之長度方向， 亦即，與入光端面4之長度方向大致垂直之方向。又，導 光板10之反射面2亦可形成雙凸狀（lenticular)a替代稜 鏡。 於導光板10之出光面3側重疊有稜鏡片12。稜鏡片 12之下面平行設有複數個剖面形狀呈大略等腰三角形之 -------------^--------^---------^ 麵 (請先閱讀背面之注意事項>填寫本頁) 1 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公爱） 2 312555 2 2 84 ο 經濟部智慧財產局員工消費合作社印製 2 A7 _— _B7_________ 五、發明說明（2 ) 凸條，其稜線方向與入光端面4之長度方向大致平行，亦 即’配置成與導光板10之凸條的稜線方向大致垂直。 如此構成之背光器，在導光板〗〇之出光面3施以梨皮 紋加工，在反射面2形成稜鏡或雙凸狀之故，導入導光板 之光之聚光效率高，使背光器得以整體薄型化。組裝背光 器時，將導光板10、各薄片及線狀光源5收容於無圖示之 殼架（chassis)内，在覆蓋線狀光源5之上方之狀態下安裝 光源蓋（無圖示）。來自線狀光源5之照射光係自導光板】〇 之入光端面4入光，於反射面2及反射板11反射，在進入 導光板10内的同時，自出光面3出光，照射配置於背光器 之出光面側之顯示裝置。 [發明所欲解決之問題] 自入光端面4導入導光板1〇内之光，係如上所述，在 反射面2反射且向出光面3前進，但自入光端面*之上邊 緣部4E導入之光，與自入光端面4之中央部分導入之光 比較，入光時之散射程度較大。因此，自上邊緣部4£導 入之光，如第10圖中出光面3“xxx，，所示，離入光端面今 隔少許距離之位置出現有輝線。而導光板之出光面3 上僅文裝有稜鏡片12及保護片，因此，出光面3所產生之 輝線照樣顯示於为光器之出光面，而產生了對顯示裝置之 照明有惡劣影響之問題。 為解決此問題，如曰本特開平9-211450號公報之習知 技術所示，提出一種在導光板上邊緣部塗布白色油墨之背 光器。由於白色油墨會遮擋自上邊緣部之入光，因此可防 紙張尺度適用中國國家標準（CNS)A4規格（210x297公爱)--------一 — 312555 --；-----------裝--------訂---------線 (請先閱讀背面之注意事項，丨填寫本頁) 508422 A7 五、發明說明（3 ) (請先閱讀背面之注意事項填寫本頁) 止起因於自上緣部的入光所產生之輝線，但是，該白色油 墨，係需經過將導光板之上緣部分減在塗有油墨之平板 之過程而形成，因此有造成工序增加且費事之問題。而且， 塗布透明油墨時，則輝線無法㈣，塗布黑色油墨時，反 而會產生暗線，而成為問題所在。 本發明係有鑑於此而創設者，其目的在於提供一種背 光器及構成該背光器之光源蓋與光源用反光器，係採用背 光器構成構件之反光器，以防止起因於自導光板邊緣部之 入光之輝線。又，提供一種背光器，係採用規定形狀之光 源蓋，以防止因自導光板邊緣部之入光所產生之輝線。 [解決問題之手段] 第1樣態之背光器，其特徵在於：來自與具出光面之 導光板之入光端面相向而配置之光源之照射光，係藉由配 置於該光源周邊之光源用反光器而反射，且自前述入光端 面導入前述導光板内，在由前述出光面出光之背光器中， 前述光源用反光器係配置成覆蓋前述導光板的入光端面之 前述出光面侧之邊緣部。 經濟部智慧財產局員工消費合作社印f 於第1樣態中，因導光板入光端面之出光面側的邊緣 部由光源用反光器所覆蓋之故，自前述邊緣部不入光。自 邊緣部導入之光因散射程度較大，以致在出光面會產生輝 線’但藉由本發明之光源用反光器之遮光作用可遮住前述 邊緣部，防止該輝線之產生。 第2樣態之背光器，其特徵在於：於第1樣態中，更 具備有光源蓋，係抵接於安裝在前述光源周圍之前述光源 本紙張尺中關家標準（CNS)A4規格（210 X 297公爱)： "' — 3 312555 > 經濟部智慧財產局員工消費合作社印製 4 A7 五、發明說明（4 ) 用反光器外面，以覆蓋前述光源，且在抵接於前逑光源用 反光器之面之靠近前述導光板之前述邊緣部側設有肋條 者。 於第2樣態中，藉由安裝光源蓋，光源蓋之肋條推壓 光源用反光器。而光源用反光器為平板狀，藉由肋條之推 壓而向光源側彎曲且覆蓋入光端面之邊緣部，得以遮住來 自光源之照射光。藉此，自導光板邊緣部不入 止輝線之產生。 第3樣態之背光器，其特徵在於··於第】樣態中更具 備光源蓋，係抵接於安裝在前述光源周圍之前述光源用反 光器外面，以覆蓋前述光源，其中前逑光源用反光器係在 抵接於前述電源蓋之面之靠近前述導光板之前述邊緣部， 設置有具規定高度之隔板（spacer)。 於第3樣態中’藉由安裝光源蓋，光源用反光器之隔 板被光源蓋推壓。光源用反光器為片狀，藉由例如 PET(P〇〗yethy〗ene terephthaiete)製條帶狀之隔板之推壓而 向光源側f曲並覆蓋人光端面之邊緣部，以遮住來自光源 之照射光。藉此’來自光源之照射光將不會從邊緣部入光’ 而可防止輝線之產生。 第4樣態之背光器，其特徵在於：於第α態中前 述光源用&光器之-部份具抵接於前述導光板人光端面之 前述出光面側邊緣部之形狀。 於第4樣態中，因導光板之前迷邊緣部被光源用反光 器所覆蓋之故’可遮住來自前述邊緣部之導入光。光源用 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公复)----- 312555 -1 I I-----------訂--------- (請先閱讀背面之注意事項•卜填寫本頁} 508422508422 Printed A7 by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs ------- B7___ V. Description of the Invention (1 2) [Technical Field of the Invention] The present invention relates to a backlight and a light source cover constituting the backlight and The light source reflector can be used for a display device such as a liquid crystal display. [Known Technology] Many backlights for liquid crystal display devices such as liquid crystal televisions and personal computers use an edge light method. The edge illumination method is a method in which light introduced from a side end face (light end face) of a light guide plate provided in a backlight unit is irradiated from a light emitting surface to a liquid crystal display device. The light sources are mostly linear, and the light sources are oppositely arranged on the light incident end face of the light guide plate. Fig. 10 is a perspective view of the structure of a backlight of a conventional edge illumination method. As shown in the figure, the backlight includes a light guide plate 0, a reflection plate η, a prism sheet 12, and a protective sheet (not shown). The light guide plate 1 () is a rectangular plate made of acrylic resin, and the upper surface (light emitting surface) 3 and the lower surface (reflecting surface) 2 are non-parallel wedges. An edge surface on the thick wall side of the light guide plate is a light incident end surface 4, and a linear light source 5 is mounted facing the light incident end surface 4. The light-emitting surface 3 of the light guide plate 10 is subjected to polishing processing, and the rough surface of the light guide plate 10 has a predetermined gradation pattern. The reflection surface 2 'of the light guide plate 10 is formed on a sloping surface in which a plurality of convex strips having a substantially isosceles cross-section are arranged in parallel, and the ridge line direction is the length direction of the linear light rays 5, that is, the light incident end surface. The length direction of 4 is substantially perpendicular. In addition, the reflecting surface 2 of the light guide plate 10 may be formed as a lenticular a instead of a prism. A cymbal sheet 12 is overlapped on the light emitting surface 3 side of the light guide plate 10. A plurality of approximately isosceles triangles in cross-section are arranged parallel to the lower part of the cymbal 12 ------------- ^ -------- ^ --------- ^ Face (Please read the precautions on the back first> Fill in this page) 1 This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 public love) 2 312555 2 2 84 ο Employees ’Cooperatives, Intellectual Property Bureau, Ministry of Economic Affairs Printed 2 A7 __ _B7_________ 5. Description of the Invention (2) The convex line has a ridge line direction that is approximately parallel to the length direction of the light incident end face 4, that is, 'arranged to be substantially perpendicular to the ridge line direction of the light guide plate 10'. In the backlight structure thus constituted, a pear skin pattern is applied to the light exit surface 3 of the light guide plate, and a 稜鏡 or biconvex shape is formed on the reflection surface 2. The light introduction efficiency of the light introduced into the light guide plate is high, which makes the backlight The overall thickness can be reduced. When assembling the backlight, the light guide plate 10, each sheet, and the linear light source 5 are housed in a chassis (not shown), and a light source cover (not shown) is installed while covering the linear light source 5 above. The irradiated light from the linear light source 5 is from the light guide plate] The light incident end face 4 of the light is incident on the reflection surface 2 and the reflection plate 11 and enters the light guide plate 10, and the light is emitted from the light emission surface 3, and is arranged on the A display device on the light-emitting surface side of the backlight. [Problems to be Solved by the Invention] The light introduced into the light guide plate 10 from the light incident end face 4 is reflected on the reflective surface 2 and advanced toward the light exit face 3 as described above, but the edge portion 4E above the light incident end face * Compared with the light introduced from the central portion of the light-entering end face 4, the introduced light has a larger degree of scattering when it is incident. Therefore, as shown in Fig. 10, the light introduced from the upper edge portion 4 ", as shown in Fig. 10, has a bright line at a distance from the light end surface. Glow lines appear on the light exit surface 3 of the light guide plate. The cymbal 12 and the protective sheet are installed in the document. Therefore, the glow line generated by the light emitting surface 3 is still displayed on the light emitting surface of the light device, which has a problem that has a bad influence on the lighting of the display device. To solve this problem, say As shown in the conventional technique of Japanese Patent Application Laid-Open No. 9-211450, a backlight device is disclosed in which a white ink is coated on the edge portion of a light guide plate. Since the white ink blocks light from the upper edge portion, the paper size can be prevented from being applied to China. National Standard (CNS) A4 Specification (210x297 Public Love) -------- One — 312555-; ----------- install -------- order --- ------ line (please read the precautions on the back, fill in this page) 508422 A7 V. Description of the invention (3) (please read the precautions on the back, fill in this page) The light line produced by the incident light, however, the white ink needs to pass through the upper edge of the light guide plate to be reduced to the ink-coated plate. It is a problem that the number of processes is increased and troublesome. In addition, when the transparent ink is applied, the bright lines cannot be lumped, and when the black ink is applied, dark lines are generated instead, which is a problem. The present invention was created in view of this. The purpose is to provide a backlight, a light source cover and a light source reflector constituting the backlight, which are reflectors using the backlight constituting member to prevent a glow line from entering the edge of the light guide plate. A backlight is provided, which adopts a light source cover with a predetermined shape to prevent the glow lines caused by the light incident from the edge of the light guide plate. [Means for Solving the Problem] The first aspect of the backlight is characterized in that Illumination light from a light source disposed with the light incident end face of the light guide plate facing the light exit surface is reflected by a light source reflector disposed around the light source, and is introduced into the light guide plate from the light incident end face. In the surface-light-emitting backlight, the light source reflector is configured to cover an edge portion on the light-emitting surface side of a light-entry end surface of the light guide plate. In the first aspect, the Ministry of Intellectual Property Bureau's Consumer Cooperative Cooperative Association printed in the first aspect, because the edge portion on the light emitting surface side of the light guide end face of the light guide plate is covered by the light source reflector, the light does not enter from the edge portion. From the edge portion The introduced light has a large degree of scattering, so that a glow line will be generated on the light emitting surface. However, the light shielding effect of the light source reflector of the present invention can cover the aforementioned edge portion and prevent the generation of the glow line. The second aspect of the backlight, It is characterized in that in the first aspect, a light source cover is further provided, which is in contact with the aforementioned light source installed around the aforementioned light source. The paper ruler of the paper rule (CNS) A4 specification (210 X 297 public love): " '— 3 312555 > Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 4 A7 V. Description of the invention (4) Use the outside of the reflector to cover the aforementioned light source, and on the side of the reflector that is in contact with the front light source A rib is provided near the edge portion side of the light guide plate. In the second aspect, by installing the light source cover, the ribs of the light source cover press the light reflector for the light source. The reflector for the light source is a flat plate, which is bent toward the light source side by the pressing of the rib and covers the edge portion of the light-entering end face, so that the light from the light source can be blocked. As a result, the edge portion of the light guide plate does not enter the stop line. The third aspect of the backlight is characterized in that in the first aspect, a light source cover is further provided, which is in contact with the outside of the light source reflector installed around the light source to cover the light source, wherein the front light source A reflector is provided on the edge portion of the surface abutting the power supply cover near the light guide plate, and a spacer having a predetermined height is provided. In the third aspect, 'the light source cover is attached, and the partition plate of the light source reflector is pushed by the light source cover. The reflector for the light source is sheet-like, and is pushed to the side of the light source side by the pressing of a strip-shaped separator made of PET (P〇 [yethy〗 ene terephthaiete) to cover the edge portion of the end face of the light, so as to cover the light source. Light from a light source. Thereby, "irradiated light from the light source will not enter the light from the edge portion", and it is possible to prevent the occurrence of glow lines. The fourth aspect of the backlight is characterized in that: in the α-state, the-part of the light source & optical device has a shape that abuts on the light-emitting surface side edge portion of the light-guiding end face of the light guide plate. In the fourth aspect, the edge portion before the light guide plate is covered by the reflector for the light source, so that the incoming light from the edge portion can be blocked. The paper size for light source is applicable to China National Standard (CNS) A4 specification (210 X 297 public copy) ----- 312555 -1 I I ----------- Order ------- -(Please read the precautions on the back • Fill out this page} 508422
五、發明說明（5 經 濟 部 智 慧 財 產 局 員 工 消 費 合 作 社 印 製 5 反光器，係例如將靠近導光板之前述邊緣部之端部形成為 凸起（emboss)狀，或改變厚度成形使面對光源之面以產生 段差。藉由將ώ起狀部分或段差部分抵接於導光板之前述 邊緣部’則邊緣部由光源用反光器覆蓋而遮光。 第5樣態之背光器，係來自與具出光面之導光板入光 端面相向配置之光源的照射光’自前述入光端面導入前述 導光板内，並由前述出光面出光之背光器，其特徵係配置 有光源蓋以覆蓋前述光源，而此光源蓋於面對前述光源之 面’設置有應與前料光板之人光端面抵接的肋條。 於第5樣態中’由於安裝光源蓋可使肋條直接抵接於 導光板入光端面’光源蓋覆蓋邊緣部而遮光。藉此，來自 光源之照射光不會從邊緣部入光係以防止輝線之產生。 第6樣態之光源蓋，為覆蓋與具出光面之導光板的入 光端面相向配置之光源之背光器用光源蓋’其特徵係在面 對前述光源之面，靠近前述導光板之入光端面之前述出光 面側邊緣部側，設置有肋條。 於第6樣態令’由於背光器安裝有光源蓋，例如藉由 肋條之推麗使光源用反光器彎曲而覆蓋導光板邊緣部以 遮住來自邊緣部之導入光。χ，肋條直接抵接於導光板邊 緣部而遮住來自邊緣部之導入光。藉此，來自光源之照射 光不會從邊緣部人光，得以防止輝線之產生。 第7樣態之光源蓋，其特徵在於：於第6樣態中，前 述助條係形成在前逑導光板之入光端面間有約0至2.5麵 之間隙，其高為（K〇5mm至】〇mm 張尺㈣财關冢鮮（CNS)A4規彳 312555 —•II ^--------^---------^ (請先閱讀背面之注意事項V填寫本頁) 508422 經濟部智慧財產局員工消費合作社印製 6 A7 ____B7_____ 五、發明說明（6 ) .於第7樣態中，自導光板之入光端面至肋條間之距離 馬〇時，肋條將直接抵接於導光板之邊緣部而遮住來自前 述邊緣部之導入光。又，自導入板之入光端面至肋條間之 距離為約0至2.5mm時，光源用反光器受肋條之推壓而可 覆蓋導光板之邊緣部。該距離以1.5mm為宜，超過2.5mm 時遮光效果較差。而且，肋條高度以0·5η】η】為宜，低於 0.05mm時遮光效果較差，超過l〇mm時，在出光部會產 生暗部。 第8樣態之光源用反光器，係在與具出光面之導光板 的入光端面相向配置之光源周圍所裝配之光源用反光器， 其特徵係其一部分具抵接於前述導光板的入光端面之前述 出光面側之邊緣部之形狀。 於第8樣態中，由於導光板之前述邊緣部由光源用反 光器所覆蓋，而遮住來自前述邊緣部之導入光。光源用反 光器’係例如將靠近導光板之前述邊緣部之端部成形為凸 起狀’或改變厚度成形使面對光源之面產生段差。夢由將 凸起狀部分或段差部分抵接於導光板之前述邊緣部，則邊 緣部由光源用反光器覆蓋而遮光。 [圖式之簡單說明] 第1圖係本發明之實施形態1之背光器構造之剖視 圖。 。 第2圖係第1圖中之部分放大剖視圖。 第3圖係在實施形態〗之背光器安裝上殼架 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 312555 I--Μ I-----------------訂--------- (請先閱讀背面之注意事項>填寫本頁) 508422 A7 B7 五、發明說明（7 ) 第4圖係實施形態1之背光器出光面之輝度分布之曲 線圖。 第5圖係實施形態2之背光器構造之剖視圖。 第6圖係在實施形態2之背光器安裝上殼架之工序之 立體圖。 第7圖係表示實施形態·3之反光器構造之背光器的部 分放大剖視圖。 第8圖係表示實施杉態4之反光器構造之背光器的部 分效大剖視圖。 第9圖係表示實施形態5之光源蓋構造之背光器的部 分效大剖裉圖。 第10圖係習知背光器之構成的立體圖。 (請先閱讀背面之注意事項·，，填寫本頁) 經 濟 部 智 慧 財 產 局 員 工 消 費 合 作 社 印 製 [元件符號說明] 1、20 上殼架 la 肋條 2 反射面. 3 出光面 4 入光端面 4E 上邊緣部 5 線狀光源 6、16 、26、36反光器 6a 白色條帶 7 下殼架 10 導光板 11 反射板 12 稜鏡片 16a 凸起部 26a 金屬薄膜 26b PET薄膜 [發明之實施形態] 以下根據圖式就本發明之實施形態具體說明 實施形態 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 7 312555 508422 經濟部智慧財產局員工消費合作社印製 8 A7 B7 五、發明說明（8 ) 第】圖為本發明之實施形態1之背光器構造的剖視 圖。如第1圖所示，背光器之構成，係在下殼架7内依序 重疊有反射板11、導光板1〇、稜鏡片12及保護片（無圖 示）’配置線狀光源5與導光板1〇之入光端面4相向，在 自線狀光源背後側圍繞其周圍的狀態下，裝配光源用反光 器6(以下稱為反光器），在線狀光源5上方自反光器6外側 安裝光源蓋1(以下稱為上殼架 導光板10係平面視為長方形的丙烯酸樹脂製矩形 板，上面（出光面）3與下面（反射面）2呈非平行模形狀，厚 壁側為入光端面4。導光板1〇之出光面3施以梨皮紋加 工，表面粗糙處形成為規定之漸層圖案。在導光板之反 射面2形成有平行設置複數個剖面形狀呈大略等腰三角形 之凸锋之稜鏡面，其稜線方向與線狀光源5之長度方向， 亦即與入光端面4之長度方向大略垂直之方向。又，導光 板10之反射面2亦可形成雙凸狀以替代稜鏡。又，稜鏡片 12在下面平行設有複數個剖面形狀呈大略等腰三角形之 凸條’稜線方向與入光端面4之長度方向略成平行，亦即 配置在與導光板10之凸條的稜線方向大略垂直之方向。 反光器6為金屬製片厚約〇 jmm。反光器6係與線狀 光源5之間有規定間隔，自背後側圍繞其周園，分別將兩 端部重疊於導光板1〇之出光面3側及反射面2側，並由上 嘁架1及下喊架7所固定。上殼架1例如係合成樹脂製剖 面略呈L字形，將其一側蓋在下殼架7且自反光器6之外 側覆蓋線狀光源5。上殼架】面對反光器6之面形成有與 本紙張尺度過用中國國豕標準（CNS)A4規格（210 x 297公釐） 312555 - ------I------------訂--------- * (請先閱讀背面之注意事項\填寫本頁) 經 濟 部 智 慧 財 產 局 員 工 消 費 合 作 社 印 製 9 508422 A7 ----B7 五、發明說明（9 ) 線狀光源5之長度方向大略平行的肋條^第2圖為第1圖 之導光板之入光端面附近之放大剖視圖。肋條la係形成於 與導光板10之入光端面4之間有約〇·1至2.5mm間隙之 位置，肋條之高度為〇·〇5至i.Omm。如第2圖所示，反光 器6在上殼架1之肋條la所抵接部分向線狀光源$侧彎 曲’藉由此彎曲，反光器6覆蓋導光板之入光端面4 之上邊緣部4E。又，於本實施例之形態中，肋條丨a係與 上妓架1 一體成形者，但並不限於此，例如可黏貼PET製 條帶形成肋條〗a亦可。 第3圖為在背光器安裝上殼架1之立體圖。如圖所示， 片狀反光器6在安裝上殼架丨之前，係以平面狀圍繞在線 狀光源5之上方、下方及背面之三方，但經安裝上殼架工 則肋條la自上側推壓反光器6使之往下彎曲，結果如第i 圖所示，導光板10之上邊緣部4E成為被反光器6覆蓋之 狀態。 如以上構成之背光器，來自線狀光源5之照射光係直 接以及由反光器6而反射且從導光板1〇之入光端面被導 入。所導入之光係經導光板1〇之反射面2及反射板u而 反射，且進入導光板10内，同時自出光面3出光。此時， 導光板1G之人光端面4的上邊緣部4E因被反光器6覆蓋 而不致從上邊緣部4E導入之照射光，得以防止起因於上 邊緣部之輝線的產生^ 再者，反光器6亦可採用在例如LU系列（曰本三井東 壓化學公司製）之金屬白色薄膜<蒸鐘薄膜 > 作 本紙張尺度適用中國國家標準（CNS)A4規格（21^7^7 312555 — II-----I----· 1111 111 訂 — Ilf--111 ♦ (請先閱讀背面之注意事項>填寫本頁) 附件三 經濟部智慧財產局員工消費合作社印製 508422V. Description of the invention (5 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 5 Reflector, for example, the end of the aforementioned edge portion near the light guide plate is formed into an emboss shape, or the thickness is changed to face the light source In order to produce a step difference. By abutting the raised portion or the step difference portion against the aforementioned edge portion of the light guide plate, the edge portion is covered by the light source with a reflector to block light. The backlight device of the fifth aspect is from the Illumination light from a light source on the light-emitting surface of the light-emitting surface opposite to the light-inlet end face is introduced into the light-guiding plate from the light-inlet end surface, and the light is emitted from the light-emitting surface, which is characterized by a light source cover configured to cover the light source, and This light source cover is provided on the side facing the light source with ribs which should be in contact with the light end face of the front light board. In the fifth aspect, the ribs can be directly abutted on the light guide end face of the light guide plate by installing the light source cover. 'The light source cover covers the edge and shields the light. As a result, the light from the light source does not enter the light system from the edge to prevent the occurrence of bright lines. The sixth aspect of the light source cover is to cover and The light source cover for the backlight of the light source with the light incident end face of the light guide plate opposite to the light exit face is characterized in that the rib is provided with a rib on the side facing the light source and close to the light exit side edge portion of the light guide end face of the light guide plate. In the sixth aspect, 'the backlight is equipped with a light source cover, for example, the light source is bent by the ribs to cover the edge of the light guide plate to cover the edge of the light guide plate by pushing the ribs. Χ, the ribs directly It is connected to the edge of the light guide plate and shields the incoming light from the edge. As a result, the light from the light source will not be radiated from the edge, which prevents the occurrence of glow lines. The seventh aspect of the light source cover is characterized by: In the sixth aspect, the aforementioned auxiliary strip is formed with a gap of about 0 to 2.5 sides between the light-entering end faces of the front light guide plate, and its height is (K〇5mm to) 0mm CNS) A4 Regulations 312555 — • II ^ -------- ^ --------- ^ (Please read the precautions on the back first and fill out this page) 508422 Employees ’Consumption of Intellectual Property, Ministry of Economic Affairs Cooperative printed 6 A7 ____B7_____ V. Description of Invention (6). In the seventh aspect, When the distance between the light-entering end face of the light guide plate and the ribs is equal to 0, the ribs will directly abut the edge portion of the light guide plate to shield the incoming light from the aforementioned edge portion. In addition, the distance from the light-entering end face of the guide plate to the ribs When the distance is about 0 to 2.5mm, the light source reflector can be pushed by the rib to cover the edge of the light guide plate. The distance is preferably 1.5mm, and the light shielding effect is poor when it exceeds 2.5mm. Moreover, the rib height is 0 · 5η] η] is suitable, the shading effect is poor when less than 0.05mm, and the dark part will be generated in the light emitting part when it exceeds 10mm. The reflector for the light source of the eighth aspect is connected with the light guide plate with the light emitting surface. A feature of the light source reflector mounted around the light source with the light end faces facing each other is that a part of the light reflector has a shape that abuts against an edge portion on the light exit side of the light incident end face of the light guide plate. In the eighth aspect, since the aforementioned edge portion of the light guide plate is covered by the light source reflector, the incoming light from the aforementioned edge portion is blocked. The reflector for a light source is formed by, for example, forming an end portion near the edge portion of the light guide plate into a convex shape or changing the thickness so that the step facing the light source is stepped. In the dream, a convex portion or a stepped portion abuts against the aforementioned edge portion of the light guide plate, and the edge portion is covered with a light source with a reflector to block light. [Brief description of the drawings] Fig. 1 is a sectional view of a backlight structure according to the first embodiment of the present invention. . FIG. 2 is an enlarged sectional view of a part of FIG. 1. Figure 3 shows the backlight mounting upper case frame in the implementation form. The paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) 312555 I--Μ I ---------- ------- Order --------- (Please read the precautions on the back & fill in this page) 508422 A7 B7 V. Description of the invention (7) Figure 4 is the backlight of the first embodiment Graph of the luminance distribution of the light emitting surface of the device. Fig. 5 is a sectional view of a backlight structure according to the second embodiment. Fig. 6 is a perspective view of a step of mounting a casing on a backlight of the second embodiment. Fig. 7 is a partially enlarged sectional view showing a backlight of the reflector structure of the third embodiment. Fig. 8 is a partial cross-sectional view showing a partial effect of a backlight in which the reflector structure of the fir state 4 is implemented. Fig. 9 is a partial cross-sectional view showing a partial effect of the backlight of the light source cover structure according to the fifth embodiment. Fig. 10 is a perspective view showing the structure of a conventional backlight. (Please read the precautions on the back first, and fill in this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs [Description of Symbols] 1, 20 Upper frame la ribs 2 Reflective surface. 3 Light emitting surface 4 Light incident end surface 4E Upper edge part 5 Linear light source 6, 16, 26, 36 Reflector 6a White strip 7 Lower case frame 10 Light guide plate 11 Reflective plate 12 Cymbal 16a Raised portion 26a Metal film 26b PET film [Embodiment of the invention] The following Detailed description of the implementation form of the present invention according to the drawings. The implementation form of this paper applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm). 7 312555 508422 Printed by the Employees ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 8 A7 B7 V. DESCRIPTION OF THE INVENTION (8) FIG. 1 is a sectional view of a backlight structure according to the first embodiment of the present invention. As shown in FIG. 1, the structure of the backlight is that a reflective plate 11, a light guide plate 10, a cymbal 12, and a protective sheet (not shown) are sequentially stacked in the lower case frame 7, and the linear light source 5 and the guide are arranged. The light end surface 4 of the light plate 10 is opposite to each other, and a light source reflector 6 (hereinafter referred to as a reflector) is assembled in a state surrounding the periphery of the linear light source, and a light source is installed above the linear light source 5 from the outside of the reflector 6 Cover 1 (hereinafter referred to as the upper case light guide plate 10 is a rectangular plate made of acrylic resin as a plane. The upper surface (light emitting surface) 3 and the lower surface (reflecting surface) 2 are non-parallel mold shapes. The thick-walled side is the light incident end surface. 4. The light emitting surface 3 of the light guide plate 10 is processed with pear skin texture, and the rough surface is formed into a predetermined gradient pattern. The reflection surface 2 of the light guide plate is formed with a plurality of convex protrusions with a substantially isosceles triangle in cross section. The front surface of the front has a ridge line direction that is the length direction of the linear light source 5, that is, a direction that is substantially perpendicular to the length direction of the light incident end face 4. In addition, the reflective surface 2 of the light guide plate 10 can also be formed as a double convex to replace the edge. Mirror. Again, the sepals 12 are parallel below There are a plurality of ridge lines of a plurality of isosceles triangles whose cross-sectional shape is substantially parallel to the length direction of the light incident end face 4, that is, arranged in a direction substantially perpendicular to the ridge line direction of the ridges of the light guide plate 10. Reflector 6 It is a metal sheet with a thickness of about 0mm. The reflector 6 series and the linear light source 5 have a predetermined distance, and surround the periphery from the back side. The two ends are respectively overlapped on the light exit surface 3 side of the light guide plate 10 and reflected. Surface 2 side, and is fixed by the upper frame 1 and the lower frame 7. For example, the upper frame 1 is made of synthetic resin and has a slightly L-shaped cross section. One side of the upper frame 1 is covered by the lower frame 7 and covered from the outside of the reflector 6 Linear light source 5. Upper case frame] The surface facing the reflector 6 is formed with the Chinese paper standard (CNS) A4 specification (210 x 297 mm) that has passed the paper size. 312555------- I- ----------- Order --------- * (Please read the notes on the back \ Fill this page first) Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 9 508422 A7- --B7 V. Description of the invention (9) The ribs of the linear light source 5 in the length direction are substantially parallel ^ Figure 2 is the light incident end face of the light guide plate in Figure 1 A close-up enlarged cross-sectional view. The ribs la are formed at a position of about 0.1 to 2.5 mm from the light incident end face 4 of the light guide plate 10, and the height of the ribs is from 0.05 to i.O mm. As shown in FIG. 2 As shown, the reflector 6 is bent toward the linear light source $ at the abutting portion of the ribs 1a of the upper case frame 1. As a result, the reflector 6 covers the upper edge portion 4E of the light incident end face 4 of the light guide plate. In the form of this embodiment, the ribs 丨 a are integrally formed with the upper prostitute rack 1, but it is not limited to this. For example, the ribs made of PET can be adhered to form the ribs a. Figure 3 shows the mounting on the backlight. A perspective view of the shell frame 1. As shown in the figure, before the sheet reflector 6 is mounted on the shell frame, the three sides above, below and behind the linear light source 5 are planarly surrounded. The rib la pushes the reflector 6 from the upper side and bends it downward. As a result, as shown in FIG. I, the upper edge portion 4E of the light guide plate 10 is covered by the reflector 6. In the backlight configured as described above, the irradiation light from the linear light source 5 is directly and reflected by the reflector 6 and is guided from the light-entering end face of the light guide plate 10. The introduced light is reflected by the reflection surface 2 and the reflection plate u of the light guide plate 10, enters the light guide plate 10, and emits light from the light exit surface 3 at the same time. At this time, the upper edge portion 4E of the human light end face 4 of the light guide plate 1G is covered by the reflector 6 and the irradiated light introduced from the upper edge portion 4E is prevented, thereby preventing the occurrence of a glow line from the upper edge portion. Furthermore, the reflective light The device 6 can also use, for example, a metal white film < steamed bell film > of the LU series (manufactured by Mitsui To pressure Chemical Co., Ltd.) as the paper size. The Chinese National Standard (CNS) A4 specification (21 ^ 7 ^ 7 312555) — II ----- I ---- · 1111 111 Order — Ilf--111 ♦ (Please read the precautions on the back > fill out this page) Annex III Printed by the Employee Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 508422
五、發明說明（ 用如請測、⑽請、RW75CBMR25D(KlmQt0公司 製）或#4596(住友3M公司製）等之白色薄膜或蒸鑛薄膜。 針對上述實施形態1之背光器調查其出光面之_八 布。輝度測量係在出光面中央自入光端面4側至心= 領域以imm間隔測量。第4圖為表示其結果之曲線圖，縱 軸為輝度㈣岭橫軸為自入光端面之位置(_)。上变架 i之肋條U係形成於與入光端面4之間隔有約"職間隙 之位置，其高度為0.5mm。此外，對使用無形成肋條之光 源盍之習知背光H亦進行同樣之輝度測量。曲線中“◦ 貫施幵1之結果，“ X ’’為習知例之結果。 由曲線圖可知，在習用例中’在自入光端面4離開2mm 之位置會發生較周圍輝度高，所謂之輝線。與此相對，在 上殼架1設肋條la之實施形態丨之背光器中，則自入光端 面4至_ 10麵之位置’大致維持—定之輝纟，即可謂 防止了輝線之產生。 又，自導光板之入光端面至肋條之距離，在反光器之 厚度（mm)至2.5mm時，光源用反光器受肋條推壓而可覆蓋 導光板之邊緣部，最好為l.5mm。超過2 5mm時，遮光效 果較差。又’肋條之高度以〇.5_為宜，低於〇〇5咖時 遮光效果較差，較l.〇mm高時在出光面會出現暗線。 實施形態2 第5圖為本發明實施形態之背光器構造之剖視圖。反 光器6為金屬片製厚度約〇.imm，在面對反光器6之上續 架20之面’黏貼有與線狀光源5之長度方向大略平行之 本紙張尺度適用中國國家標準（CNS)A4規格（210x 297公釐） 10(修正頁） 312555 ------—tr---------線 (請先閱讀背面之注意事項再填寫本頁) 508422 A7 B7 五、發明說明（ PET製白色條帶6a(隔板）。白色條帶6a係黏貼在與導光板 1〇之入光端面4之間有約0·1至2.5mm之間隙之位置，並 厚度為0·05ίηηι至1 ·〇ηιιιι。上殼架20之剖面呈大略L字形， 使其一側由下殼架7所覆蓋，且自反光器6外側覆蓋線狀 光源5。如第5圖所示，在上殼架20所抵接於白色條帶6a 之部分，。反光器6向線狀光源5側彎曲，藉由此彎曲反光 器6覆蓋導光板1〇之入光端面4之上邊緣部4E。再者， 背光器之其他構件之形狀及構成均與實施形態1相同，相 同部分附上相同符號而省略其說明。 第6圖為在背光器安裝上殼架20之立體圖。如圖所 示’片狀之反光器6在安裝上殼架20之前，係以平面狀圍 繞線狀光源5之上方 '下方及背面的三方，藉由安裝上殼 架20，白色條帶6&受上殼架20自上側推壓，而反光器6 向下方彎曲。其結果如第5圖所示，成為導光板1〇之上邊 緣部分4E由反光器6所覆蓋之狀態。 如以上構成之實施形態2之背光器，因導光板1〇之入 光端面4之上邊緣部4E受反光器6覆蓋，而不致從上邊 緣部4E導入照射光，可防止起因於上邊緣部4£之輝線產 生。 第7圖為表示本發明之反光器構造之背光器之部分放 大剖視圖。反光器16為金屬薄膜與白色pet薄膜之叠層 加工所形成者。反光器16在重疊於導光板1〇之出光面之 一側之端部，設置有與線狀光源5之長度方向大略平行之 312555 請 先 閱 讀 背 面 之 注 意 事 t 經濟部智慧財產局員工消費合作社印製 11 508422 經濟部智慧財產局員工消費合作社印製 12 A7 B7 五、發明說明（n ) 剖面凹狀之凸起部16a。凸起部16a深度為0.〇5至！ 〇mm， 係在其側面抵接於導光板1 〇之入光端面4之位置經沖壓加 工而成形。上殼架20剖面呈大略L字形，使其一側由下 殼架7所覆蓋，且自反光器16之外側覆蓋線狀光源5。如 第7圖所示，反光器16之凸起部16a覆蓋導光板1〇之入 光端面4之上邊緣部4E。再者，反光器16亦可為金屬薄 膜與銀製薄臈之疊層加工者。又，背光器之其他構件之形 狀及構成係與實施形態1相同，在相同部分附相同符號而 省略其說明。 如以上構成之實施形態3之背光器，由於入光端面4V. Description of the invention (For example, please use test, request, RW75CBMR25D (manufactured by KlmQt0 company) or # 4596 (manufactured by Sumitomo 3M company), etc. White film or vaporized thin film. Investigate the light-emitting surface _ 八 布. The brightness measurement is at the center of the light emitting surface from the 4 sides of the light incident end face to the center = area is measured at imm intervals. Figure 4 is a graph showing the results, and the vertical axis is the brightness. The horizontal axis is the light incident end face. Position (_). The rib U of the upper frame i is formed at a position with a distance of about "quote" from the light incident end face 4, and its height is 0.5mm. In addition, the practice of using a light source without a rib It is known that the same brightness measurement is also performed on the backlight H. The result of “◦ consistently applied 幵 1 in the curve, and the result of“ X ”is the result of the conventional example. As can be seen from the graph, in the conventional example, it is 2 mm away from the light incident end face 4 The position will have a higher brightness than the surrounding, the so-called glow line. In contrast, in the backlight of the embodiment where ribs la are provided on the upper case 1, the position 'from the light incident end face 4 to the _10 face' is substantially maintained— Ding Zhihui can be said to have prevented the occurrence of a glow line. The distance from the light-entering end face of the light guide plate to the ribs, when the thickness of the reflector (mm) to 2.5 mm, the light source reflector is pushed by the ribs to cover the edge of the light guide plate, preferably 1.5 mm. More than 2 When it is 5mm, the shading effect is poor. The height of the ribs is preferably 0.5mm. When it is lower than 0.05mm, the shading effect is poor. When it is higher than 1.0mm, dark lines appear on the light-emitting surface. Embodiment 2 5 The figure is a cross-sectional view of the structure of the backlight according to the embodiment of the present invention. The reflector 6 is made of a metal sheet with a thickness of about 0.1 mm, and the surface of the continuous frame 20 above the reflector 6 is pasted with the length direction of the linear light source 5 This paper is roughly parallel to the Chinese standard (CNS) A4 (210x 297 mm) 10 (correction page) 312555 -------- tr --------- line (please read the back first) Note for re-filling this page) 508422 A7 B7 V. Description of the invention (PET white strip 6a (separator). The white strip 6a is affixed between the light guide end 10 of the light guide plate 10 and about 0 · The position of the gap of 1 to 2.5mm, and the thickness is from 0.055 ηη to 1 · 〇ηιιι. The cross section of the upper shell frame 20 is roughly L-shaped, One side is covered by the lower case frame 7, and the linear light source 5 is covered from the outside of the reflector 6. As shown in FIG. 5, the portion of the upper case frame 20 abutting the white strip 6a. The reflector 6 Bend toward the linear light source 5 and thereby bend the reflector 6 to cover the upper edge portion 4E of the light-entering end face 4 of the light guide plate 10. In addition, the shape and configuration of the other components of the backlight are the same as those of the first embodiment. The same parts are attached with the same symbols and their descriptions are omitted. Figure 6 is a perspective view of the housing 20 mounted on the backlight. As shown in the figure, the sheet-shaped reflector 6 is surrounded by a flat surface before the housing 20 is installed. The three sides above and below the linear light source 5 are attached to the upper case frame 20, and the white strip 6 is pushed by the upper case frame 20 from the upper side, and the reflector 6 is bent downward. As a result, as shown in FIG. 5, the edge portion 4E on the light guide plate 10 is covered with the reflector 6. In the backlight of the second embodiment configured as described above, the upper edge portion 4E of the light guide end surface 10 of the light guide plate 10 is covered by the reflector 6, so that the irradiated light is not introduced from the upper edge portion 4E, which can be prevented from being caused by the upper edge portion. A 4 brilliance line is generated. Fig. 7 is a partially enlarged sectional view showing a backlight of the reflector structure of the present invention. The reflector 16 is formed by laminating a metal thin film and a white pet film. The reflector 16 is provided at an end portion overlapping one side of the light guide surface of the light guide plate 10, and is provided substantially parallel to the length direction of the linear light source 5 312555. Please read the notice on the back first. Printed 11 508422 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 12 A7 B7 V. Description of the invention (n) A convex portion 16a with a concave section. The depth of the convex portion 16a is from 0.05 to 0.5! 〇mm is formed by punching at a position where the side surface abuts the light incident end face 4 of the light guide plate 10. The upper case frame 20 has a substantially L-shaped cross section such that one side thereof is covered by the lower case frame 7 and a linear light source 5 is covered from the outside of the reflector 16. As shown in Fig. 7, the convex portion 16a of the reflector 16 covers the upper edge portion 4E of the light incident end face 4 of the light guide plate 10. Furthermore, the reflector 16 may be a laminated processor of a metal thin film and a thin silver foil. The shape and configuration of the other components of the backlight are the same as those of the first embodiment, and the same parts are denoted by the same reference numerals, and descriptions thereof are omitted. The backlight of the third embodiment configured as above, because the light incident end face 4
之上邊緣部4E受反光器〗6所覆蓋，不致從上邊緣部4E 導入照射光，而可防止起因於上邊緣部4E之輝線產生。 實施形4 第8圖為表示本發明之反光器構造之背光器之部分放 大剖視圖。反光器20係與線狀光源5隔有規定之間隙，自 背後側圍繞其周邊，將兩端部分別重疊於導光板1〇之出光 面3側及反射面2側，以上殼架2〇及下殼架7加以固定。 金屬薄臈26a厚度〇·05至1〇mm，覆蓋線狀光源5之周邊。 又’金屬薄臈26a係在覆蓋線狀光源5之上方之面的外層， 藉由將白色PET薄臈26b進行疊層加工而裝設者。pET薄 膜b之端部比金屬薄臈2 6a長，金屬薄媒2 6a使其端面 壓接於導光板1G之人光端面4, pET薄膜鳩則使其端部 重#於導光板10之出光面3上。亦即，於重昼在出光面3 反，光器26之端部，形成面對線狀光源5之面的段差， 本猶尺度剌中_冢群（cns)A4 ---- 312555 --*1.----------^---*-----^-------- (請先閱讀背面之注意事項Λ^·寫本頁) ^U8422 A7 ----------B7 五、發明說明（I3 ) 以此段差覆蓋入光端面4之上邊緣部4E。又，背光器之其 他構件之形狀及構成係與實施形態1相同，在相同部分附 相同符號，並省略其說明。 如以上構成之實施形態4之背光器，因導光板1〇之入 光端面4之上邊緣部4E受反光器26所覆蓋，因此不致從 上邊緣部4E導入照射光，而可防止起因於上邊緣部4E之 輝線產生。 m m 5 第9圖為表示本發明實施形態5之背光器之光源蓋構 造的部分放大剖視圖。反光器為金屬片製厚度約 ni m 與線狀光源5隔有規定之間隔，自背後侧圍繞其 周邊’將下側端部重疊於導光板10之反射面2,並以下殼 架7加以固定。上殼架i例如為合成樹脂製，剖面呈大略 L字形，使其一側由下殼架7所覆蓋，且自反光器36之外 側覆蓋線狀光源5。在上殼架1面對反光器36之面，形成 有與線狀先源5之長度方向大略平行之肋條〗a。肋條j & 形成在抵接於導光板之入光端面4之位置，肋條1&之 兩度為0.05mm至l〇mm。反光器36之上側端部較下侧端 部短’為抵接於上殼架1之肋條la側面之長度。如第9 圖所示，於本實施形態中，肋條la覆蓋導光板1〇之入光 端面4之上邊緣部4Ed又，背光器之其他構件之形狀及構 成係與實施形態1相同，在相同部分附相同符號，並省略 其說明。又，於本實施形態中，肋條u雖係與上殼架^ 請 先 閱 讀 背 δ 之 注 意 事The upper edge portion 4E is covered by the reflector 6 so that the irradiated light is not introduced from the upper edge portion 4E, and it is possible to prevent the occurrence of a glow line due to the upper edge portion 4E. Embodiment 4 Fig. 8 is a partially enlarged sectional view showing a backlight of the reflector structure of the present invention. The reflector 20 is separated from the linear light source 5 by a predetermined gap, and surrounds the periphery from the rear side, and the two ends are respectively overlapped on the light exit surface 3 side and the reflective surface 2 side of the light guide plate 10, and the upper housing frame 20 and The lower case frame 7 is fixed. The thin metal plate 26a has a thickness of 0.05 to 10 mm and covers the periphery of the linear light source 5. Further, the metal thin diaphragm 26a is an outer layer covering the surface above the linear light source 5, and is mounted by laminating a white PET thin diaphragm 26b. The end portion of the pET film b is longer than the metal thin 臈 2 6a. The metal thin medium 2 6a has its end face crimped to the human light end face 4 of the light guide plate 1G, and the pET film dove has its end weight #lighted from the light guide plate 10 On surface 3. That is, Yu Zhongyi is reflecting on the light-emitting surface 3, and the end of the light device 26 forms a step difference on the surface facing the linear light source 5. The original scale _zhong group (cns) A4 ---- 312555- * 1 .---------- ^ --- * ----- ^ -------- (Please read the precautions on the back ^^ · Write this page) ^ U8422 A7 ---------- B7 V. Description of the invention (I3) This step is used to cover the upper edge portion 4E of the light incident end surface 4. The shape and configuration of the other components of the backlight are the same as those of the first embodiment, and the same reference numerals are attached to the same parts, and descriptions thereof are omitted. In the backlight of the fourth embodiment configured as described above, since the upper edge portion 4E of the light incident end face 4 of the light guide plate 10 is covered by the reflector 26, the irradiation light is not introduced from the upper edge portion 4E, and it can be prevented from being caused by the above. A bright line of the edge portion 4E is generated. m m 5 FIG. 9 is a partially enlarged sectional view showing the structure of a light source cover of a backlight according to Embodiment 5 of the present invention. The reflector is made of a metal sheet with a thickness of about ni m and a predetermined distance from the linear light source 5 and surrounds its periphery from the back side. 'The lower end is overlapped on the reflective surface 2 of the light guide plate 10 and fixed by the lower case frame 7. . The upper case frame i is made of synthetic resin, for example, and has a substantially L-shaped cross section so that one side is covered by the lower case frame 7 and the linear light source 5 is covered from the outside of the reflector 36. On the side of the upper case frame 1 facing the reflector 36, ribs a substantially parallel to the length direction of the linear source 5 are formed. The rib j & is formed at a position abutting on the light incident end face 4 of the light guide plate, and the ribs 1 & are twice in a range of 0.05 mm to 10 mm. The upper end portion of the reflector 36 is shorter than the lower end portion 'is a length that abuts the side surface of the rib la of the upper case frame 1. As shown in FIG. 9, in this embodiment, the rib la covers the upper edge portion 4Ed of the light incident end face 4 of the light guide plate 10, and the shape and structure of other components of the backlight are the same as those in the first embodiment, The same symbols are attached to parts, and descriptions thereof are omitted. Also, in this embodiment, although the rib u is connected to the upper shell frame ^ Please read the notes on the back δ first
經 濟 部 智 慧 財 產 局 員 工 合 作 社 印 製Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs
508422 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明（14 ) 條1 a亦可。 如以上構成之實施形態5之背光器，因入光端面4之 上邊緣部4E受上滅架1之肋條ia所覆蓋，不致自上邊緣 部4E導入照射光，而可防止起因於上邊緣部4E之輝線產 生。 而且’於上述實施形態1至5中，導光板〗〇係採用楔 型者，但並不限定於此，亦可為平行平板型^再者，在上 述實施形態1至5中，係舉出在導光板1〇之出光面3上重 疊1個稜鏡片及保護片的實施例加以說明，但亦不限定於 此，本發明在起因於上邊緣部4E之輝線對顯示裝置之照 明造成影響之程度之薄型背光器，可獲得優越之效果。 再者，上述實施形態1至5之各構件尺寸並不限於此， 只要能覆蓋入光端面之上邊緣部之尺寸即可。 [發明之效果] 如上所述，本發明係採用光源用反光器或光源蓋，藉 由覆蓋導光板入光端面之出光面側邊緣部而遮光，使來自 光源之照射光不會自前述邊緣部導入。光源用反光器受設 於光源蓋之肋條，或設於光源用反光器之隔板推壓而彎 曲’並覆蓋前述邊緣部。藉由此等遮光，可防止起因於自 邊緣部的導入光之輝線產生等，達到本發明之效果。 本紙張尺度適用中國國家標準（CNS)A4規格（210 x 297公釐） 312555 — 14 ----Γ-----I------------訂--------- (請先閱讀背面之注意事項'填寫本頁) ^ ......508422 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the Invention (14) Article 1 a may also be used. The backlight of Embodiment 5 configured as described above, because the upper edge portion 4E of the light incident end surface 4 is covered by the ribs ia of the upper frame 1, so that the irradiation light is not introduced from the upper edge portion 4E, and it can be prevented from being caused by the upper edge portion. The 4E ray of light is generated. Further, in the above-mentioned Embodiments 1 to 5, the light guide plate is a wedge-shaped one, but it is not limited to this, and may be a parallel flat plate. Furthermore, in the above-mentioned Embodiments 1 to 5, An embodiment in which a cymbal and a protective sheet are superimposed on the light-emitting surface 3 of the light guide plate 10 will be described, but it is not limited thereto. The present invention affects the illumination of the display device by the glow line caused by the upper edge portion 4E. Level of thin backlight can get superior results. In addition, the sizes of the respective members of the first to fifth embodiments are not limited to this, as long as they can cover the size of the edge portion above the light incident end face. [Effects of the Invention] As described above, the present invention adopts a reflector or a light source cover for a light source, and covers the light emitting surface side edge portion of the light guide end face of the light guide plate to block light, so that the light from the light source does not pass through the edge portion. Import. The light source reflector is bent by the rib provided on the light source cover or the partition provided on the light source reflector to be bent 'to cover the edge portion. Such light shielding can prevent the occurrence of a glow line caused by the introduced light from the edge portion, etc., and achieve the effect of the present invention. This paper size applies to China National Standard (CNS) A4 (210 x 297 mm) 312555 — 14 ---- Γ ----- I ------------ Order ---- ----- (Please read the notes on the back first 'fill out this page) ^ ......