201001137 六、發明說明： 【發明所屬之技術領域】 本發明相關於電子設備’例如膝上型個人電腦’且相 關於安裝於電子設備的電子組件。 【先前技術】 電子設備例如膝上型個人電腦（pc)被要求在不阻礙 尺寸及厚度的減小而同時增進電子設備的設計之下設置有 按鈕或類似者。在日本專利申請案公開第2 0 〇5 - 1 2 8 8 0 5號 (段落01 3 5，圖3、3 5等）（以下稱爲專利文件1 )所揭 示的技術中，電力開關被設置於一鉸鏈的一個端部’而此 鉸鏈係將設置有鍵盤及類似者的罩殼與設置有顯示部份的 罩殼互相可旋轉地連接。當電力被打開時’電力開關藉著 例如發光元件而發光，此可易於在視覺上證實電力打開的 狀態。 在專利文件1所揭示的技術中，電力開關曝露在鉸鏈 的一個端部處。此造成使用者會意外地碰觸電力開關而使 電力被非有意地關閉的問題。有鑑於此，可設置具有突起 部份的光屏蔽部份，其突起部份環繞電力開關且與電力開 關的按壓表面相比呈突起狀。此光屏蔽部份主要從設計觀 點而言係承受電鍍處理或類似者。 然而，當設置有光屏蔽部份時，因爲光屏蔽部份會遮 蔽光，所以操作電子設備的使用者在面對電子設備時在某 些情況中可能會難以辨識出從電力開關射出的光。 -5- 201001137 【發明內容】 鑑於上述的情況，想要提供一種電子設備及電子組件 ，其可在不減損電子設備及電子組件的設計之下，容許操 作電子設備的使用者在面對電子設備時可確定按鈕的發光 狀態。 根據一實施例，提供一種電子設備。此電子設備包含 電子設備主體'按鈕、具有環圈形狀的發光部份、具有環 圈形狀的光屏蔽部份、支撐構件、發光元件、及開關元件 。電子設備主體包含在其一個橫向側上的按鈕配置部份。 按鈕被設置在按鈕配置部份上且由使光通過的材料製成， 並且按鈕具有有第一半徑的圓柱形形狀，且包含底座部份 及在底座部份的相反側的按壓表面。底座部份具有大於第 一半徑的第二半徑。發光部份被固定在按鈕配置部份的一 側’且包含環繞底座部份的外圓周表面及按鈕的底座部份 的附近的內圓周表面、及曝露於外部的外圓周表面。發光 部份是由散射光的材料製成。光屏蔽部份被固定於發光部 份，使得光屏蔽部份與按鈕配置部份將發光部份夾在二者 之間’並且光屏蔽部份包含環繞按鈕的外圓周表面的內圓 周表面、及與按壓表面相比呈凸出狀的凸出部份。光屏蔽 部份是由防止光通過的材料製成。支撐構件從電子設備主 體的一側彈性地支撐按鈕。發光元件朝向按鈕的底座部份 的底部表面的幾近中心發射光。發光元件被設置在電子設 備主體之側。開關元件藉著被按鈕的底座部份壓而被開關 -6- 201001137 在根據此實施例的電子設備中，環圈形光屏蔽部份環 繞按鈕的外圓周表面，因而可防止設計減損。從發光元件 發射的光進入按鈕的底座部份的底部表面，通過按鈕，且 以按鈕的按壓表面爲出口，導致光從按壓表面射出。另外 ，從發光元件發射的光進入按鈕的底座部份的底部表面， 通過按鈕及環圏形發光部份，於環圈形發光部份中散射， 且以環圈形發光部份的外圓周表面爲出口，導致光從外圓 周表面射出。以光從環圈形發光部份的外圓周邊表面射出 的結構，只要藉著提供至少一個發光元件，按鈕的發光狀 態不只是可從一個橫向側確定，並且也可由操作電子設備 的使用者從前方確定。另外，環圈形發光部份環繞底座部 份的外圓周表面及按鈕的底座部份的附近，因而具有相對 於一軸線對稱的結構。因此，環圈形發光部份從其外圓周 表面均勻地射出光。 光屏蔽部份可包含通過發光部份的固定用的凸出腿部 ，且電子設備可另外包含定位部份，以將發光部份及光屏 蔽部份相對於一旋轉方向定位成爲防止凸出腿部被定位在 電子設備主體的前方側。 以可防止凸出腿部被定位在電子設備主體的前方側的 結構，對於在面對電子設備之下操作電子設備的使用者而 言，可防止按鈕的發光狀態由於凸出腿部而減損。 發光部份可包含凹入部份’而此凹入部份環繞按鈕的 底座部份的外圓周表面’且此凹入部份在與按鈕的底座部 201001137 份的外周邊上的角落部份相對的位置上具有斜面。 藉著設置斜面，從按鈕的底座部份的外周邊上的角落 部份射出的光在進入發光部份時較不常被反射，導致從發 光部份射出的光的量可進一步增加。 電子設備可另外包含被設置在按鈕的底座部份的底部 表面上的擴散薄片。 以此擴散薄片，從發光元件發射的光被擴散而進入按 鈕。因此，光可較爲均句地從按壓表面及發光部份的外圓 周表面射出。 電子設備主體可包含第一罩殻，其包含第一表面，而 一操作部份被設置在第一表面上；第二罩殼，其包含第二 表面，而一顯示部份被設置在第二表面上，第二表面可面 對第一表面；及鉸鏈，其在電子設備主體的背側將第一罩 殼與第二罩殼可旋轉地連接，鉸鏈具有圓柱形形狀且在其 一個端部上設置有按鈕配置部份。 以從按壓表面及發光部份的外圓周表面射出光的按鈕 被設置在具有圓柱形形狀的鉸鏈的一個端部處的結構，可 進一步改善設計。 根據另一實施例，提供一種電子組件。此電子組件包 含按鈕、具有環圏形狀的發光部份、及具有環圈形狀的光 屏蔽部份。按鈕由使光通過的材料製成，且具有有第一半 徑的圓柱形形狀。按鈕包含底座部份及在底座部份的相反 側的按壓表面，並且底座部份具有大於第一半徑的第二半 徑。發光部份包含環繞底座部份的外圓周表面及按鈕的底 -8- 201001137 座部份的附近的內圓周表面、及曝露於外部的外圓周表面 。發光部份是由散射光的材料製成。光屏蔽部份被固定於 發光部份，且包含環繞按鈕的外圓周表面的內圓周表面、 及與按壓表面相比呈凸出狀的凸出部份。光屏蔽部份是由 防止光通過的材料製成。 在根據此實施例的電子組件中，環圈形光屏蔽部份環 繞按鈕的外圓周表面，因而可防止設計減損。從發光元件 發射的光進入按鈕的底座部份的底部表面，通過按鈕，且 以按壓表面爲出口，導致光從按壓表面射出。另外，從發 光元件發射的光進入按鈕的底座部份的底部表面，通過按 鈕及環圏形發光部份，於環圈形發光部份中散射，且以環 圈形發光部份的外圓周表面爲出口，導致光從外圓周表面 射出。以光從環圈形發光部份的外圓周邊表面射出的結構 ’只要藉著提供至少一個發光元件，按鈕的發光狀態不只 是可從一個橫向側確定，並且也可由操作電子設備的使用 者從前方確定。另外，環圈形發光部份環繞底座部份的外 圓周表面及按鈕的底座部份的附近，因而具有相對於一軸 線對稱的結構。因此，環圈形發光部份從其外圓周表面均 勻地射出光。 光屏蔽部份可包含通過發光部份的固定用的凸出腿部 ，且電子組件可另外包含定位構件，以將發光部份及光屏 蔽部份相對於一旋轉方向定位。 以可防止凸出腿部被定位在電子設備主體的前方側的 結構，對於在面對電子設備之下操作電子設備的使用者而 -9- 201001137 言，可防止按鈕的發光狀態由於凸出腿部而減損。 發光部份可包含凹入部份，此凹入部份環繞按鈕的底 座部份的外圓周表面，且此凹入部份在與按鈕的底座部份 的外周邊上的角落部份相對的位置上具有斜面。 藉著設置斜面，從按鈕的底座部份的外周邊上的角落 部份射出的光在進入發光部份時較不常被反射，導致從發 光部份射出的光的量可進一步增加。 如上所述，根據實施例，發光狀態可在不減損設計之 下由在面對電子設備的同時操作電子設備的使用者確認。 本發明的這些及其他目的、特徵、及有利點會從以下 對所附圖式所示的本發明的最佳模式的實施例的詳細敘述 而更爲顯明。 【實施方式】 以下參考圖式敘述本發明的實施例。 在此實施例中，會針對被使用成爲電子設備的例子的 膝上型電腦進行敘述。 圖1爲根據實施例的處於打開狀態的電子設備的立體 圖。圖2爲處於關閉狀態的電子設備的立體圖。圖3爲處 於打開狀態的電子設備的平面圖。 電子設備1包含顯示部份2、主體部份3、及將顯示 部份2與主體部份3連接的鉸鏈4。 顯示部份2可經由鉸鏈4而相對於主體部份3被打開 及關閉。顯示部份2包含顯示側罩殼5、顯示表面6 '及 -10 - 201001137 設置在顯示側罩殼5中且實施顯示處理的顯示處理單元（ 未顯示）。 顯示側罩殼5爲容納顯示處理單元（未顯示）的顯示 部份2的罩殼。顯示表面6爲用來顯示資訊的螢幕，並且 在關閉狀態中面向主體部份3。 主體部份3包含主體側罩殼7、鍵盤單元8、中央處 理單元（未顯示）、硬碟設備（未顯示）等等。 主體側罩殼7爲主體或主體部份3的罩殼，且具有兩 個圓柱形的連接部份4 a。鍵盤單元8設置有多個鍵及類似 者，且作用成爲電子設備1的輸入部份。中央處理單元被 安裝在主體側罩殼7內的多層印刷接線板上。中央處理單 元接收來自鍵盤單元8的輸入訊號，且實施各種不同的處 理’例如計算處理、控制處理、影像處理、及對顯示部份 2的輸出處理’因而實質上作用成爲功能或作用上的主要 部份。 鉸鏈4是藉著將固定於主體部份3的連接部份4a與 設置於顯示部份2的連接部份4b互相可旋轉地連接而構 成鉸鏈結構。於軸方向（圖1中的γ方向）在鉸鏈4的右 端部的連接部份4a上，設置有電力開關單元1 〇。電力開 關單元1 0例如被固定於主體側罩殼7。 圖4爲電力開關單元1〇的立體圖。圖5a、5B、5C、 5 D、及5 E分別爲電力開關單元1 〇的平面圖、左側視圖、 前視圖、右側視圖、及仰視圖。圖6爲電力開關單元1〇 的分解立體圖。圖7爲沿圖5C的線A-A所取的電力開關 -11 - 201001137 單元1 〇的剖面圖。 如圖4至7所示，電力開關單元1〇包含光屏蔽構 1 1、發光構件1 2、環繞構件1 3、按鈕1 4、支撐構件1 5 及基板1 6。電力開關單元1 〇係如圖所示由上述構件的 合而構成。 圖8Α、8Β、8C、8D、及8Ε分別爲光屏蔽構件！ ！ 平面圖、左側視圖、前視圖、右側視圖、及仰視圖。 如圖ό所示，光屏蔽構件11包含環圈形光屏蔽部 21及多個凸出腿部22。環圈形光屏蔽部份21與凸出腿 22成整體地形成。環圈形光屏蔽部份2 1具有圓形開口 ，而按鈕1 4被裝配至此圓形開口 23內。如圖7所示， 圈形光屏蔽部份2 1包含凸出部份2 4，其於按鈕1 4被按 的方向（圖7中的Υ方向）向外凸出。開口 23與凸出 份2 4相比係形成在凹陷的位置處。如圖7所示，環圈 光屏蔽部份2 1具有斜面2 5，其形成爲從光屏蔽部份2 1 外圓周側朝向由圖7的點劃線標示的中心於Υ方向凹入 如圖7所示，環圈形光屏蔽部份2 1具有形成開口 2 3的 圓周表面26。光屏蔽部份21的內圓周表面26與按鈕 的外圓周表面44的一部份相對，如圖7所示。如圖8Ε 示，三個凸出腿部22被設置在環圈形光屏蔽部份21的 周方向的規則間隔處（在規則角度間隔處）。 顯示在例如圖4中的光屏蔽構件1 1的外表面承受 如滕射（sputtering)，而使光屏蔽膜形成在此外表面 。光屏蔽部份2 1藉著例如以濺射形成的光屏蔽膜而使 件 、 組 的 份 部 23 壞 壓 部 形 的 〇 內 14 所 圓 例 上 光 -12- 201001137 不能通過。 圖9A、9B、9C、9D、及9E分別爲發光構件12的平 面圖、左側視圖、前視圖、右側視圖、及仰視圖。 如圖6所示，發光構件1 2包含定位凸出部份3 〇、環 圈形發光部份3 1、及腿部3 2。 於定位凸出部份30，在相應於光屏蔽構件11的多個 凸出腿部22的位置處形成有多個孔33。凸出腿部22被插 入孔3 3內，因而將光屏蔽構件1 1及發光構件1 2定位。 於定位凸出部份30，形成有開口 34，而按鈕14被裝配至 開口 3 4內。 如圖7所示，環圈形發光部份3 1的外圓周表面s經 由在光屏蔽構件1 1與環繞構件1 3之間的間隙而曝露於外 部。至於環圈形發光部份3 1所用的材料，可使用例如具 有半透明性（translucency)的發乳白光的（opalescent) 樹脂材料。 如圖7所示，腿部32被插入環繞構件13內且被固定 於環繞構件1 3。 如圖7及9E所示，發光構件12包含環繞按鈕14的 底座部份46 (稍後會敘述）的外圓周表面48的凹入部份 36。凹入部份36是由環圈形發光部份31、腿部32等等構 成。凹入部份3 6在相對於按鈕14的角落部份4 9的位置 上包含斜面3 7。 圖1〇人、1〇8、1〇(：、1〇〇、1〇£、及1(^分別爲環繞 構件1 3的平面圖、左側視圖、前視圖、右側視圖、仰視 -13- 201001137 圖、及後視圖。 環繞構件1 3包含圓柱形環繞構件主體40及定位部份 41。環繞構件主體40將發光構件12的腿部32固定於定 位，且環繞支撐構件1 5、基板1 6等等。定位部份41從環 繞構件主體4〇的側表面凸出。定位部份4 1被固定於例如 主體側罩殻7的定位部份7 1。在環繞構件主體40的內圓 周表面側，設置有定位部份42。定位部份42將發光構件 1 2及光屏蔽構件1 1相對於旋轉方向（圓周方向）定位， 以防止光屏蔽構件1 1的凸出腿部22被定位在電子設備1 的前表面側（圖6中的X方向）。 圖1 1 A、1 1 B、1 1 C、1 1 D、及1 1 E分別爲按鈕1 4的 平面圖、左側視圖、前視圖、右側視圖、及仰視圖。 按鈕14是在電子設備1要被供以電力時由使用者按 壓的電力開關按鈕。按鈕1 4具有圓柱形形狀，且包含凸 出部份4 5及底座部份4 6。按鈕1 4是由光可通過的透明材 料例如ABS樹脂製成。 如圖7所示，凸出部份45被裝配至光屏蔽構件1 1的 開口 23及發光構件12的開口 34內。如圖11A至11E所 示，凸出部份45的半徑爲第一半徑rl，而底座部份46的 半徑爲大於第一半徑rl的第二半徑r2。凸出部份45包含 由使用者按壓的按壓表面43。如圖7所示，由使用者按壓 的按壓表面43與凸出部份24相比被設置在凹入的位置處 〇 如圖 u C所示，於底座部份4 6，形成有直徑不同的 -14- 201001137 一對凸出部份47，用來實施例如相對於支撐構件1 5的定 位。如圖7所示，底座部份4 6的外圓周表面4 8的角落部 份4 9與發光構件1 2的斜面3 7相對。 在圖1 1 E所示的於支撐構件1 5之側的按鈕1 4的底座 部份46的表面上，設置有成爲覆蓋幾近整個表面的擴散 薄片50，如圖7所示。藉著設置擴散薄片50’光可從按 鈕1 4的表面均勻地輻射。另外，按鈕1 4內部的結構例如 基板16的表面的狀態可藉著擴散薄片50而被隱藏。 圖12A、12B、12C、12D、及12E分別爲支撐構件15 的平面圖、左側視圖、前視圖、右側視圖、及仰視圖。 支撐構件1 5彈性地支撐按鈕1 4，使得當使用者按壓 按鈕14的按壓表面43時，按鈕14被壓陷，而當使用者 不壓按壓表面43時，按鈕返回至圖7所示的初始位置。 支撐構件15支撐基板16。 支撐構件1 5包含環圈部份5 1、彈性部份5 2、基板固 持部份53、支撐部份54等等。 如圖6所示’環圈部份51具有一對孔55，而按鈕14 的該對凸出部份47被插入該對孔55內。如圖7、12B、 及1 2E所示，凸出部份5 6被設置在環圈部份5 1於按鈕 1 4的相反側的表面上。如圖7所示，凸出部份5 6被設置 在環圈部份5 1的與開關元件6 0相對的第一位置p !處。 如圖12B及1 2D所示，彈性部份52具有曲線狀形狀 ，且與環圈部份5 1等等成整體地形成。彈性部份5 2在相 對於環圈部份5 1的環圈中心於與第一位置p 1相反之側的 -15- 201001137 第二位置P 2處（見圖7及圖1 2 B )彈性地支撐環圈部份 5 1° 如圖6所示，基板固持部份5 3近似ϋ形形狀’且在 基板1 6被插入基板固持部份5 3的狀態中固持基板1 6 °如 圖7所示，在基板1 6由基板固持部份5 3固持的狀態中， 開關元件（觸覺開關（tact switch )) 60與凸出部份56 相對，並且發光元件61相應於環圈部份5 1的幾近中心處 〇 支撐部份5 4被用來支撐彈性部份5 2、基板固持部份 5 3等等。支撐部份5 4與彈性部份5 2、基板固持部份5 3 等等成整體地形成。 圖13人、138、13(：、130、及13£分別爲基板16的 平面圖、左側視圖、前視圖、右側視圖、及仰視圖。 基板16包含安裝基底70、被安裝在安裝基底70上的 開關元件60、發光元件61、發光元件62等等。 如圖7所示，開關元件6 0被設置成爲與凸出部份5 6 相對。開關元件60是藉著與凸出部份56接觸而被切換開 /關。 發光元件6 1及62朝向例如按鈕1 4 (擴散薄片5 0 ) 的幾近中心發射光。可使用例如LED (發光二極體）成爲 各發光元件61及62。 圖1 4爲顯示電子設備1的系統的結構的方塊圖。 電子設備1的系統80包含基板16、電力或電源電路 81、及系統控制器82。 -16- 201001137 基板16設置有安裝基底70、被安裝在安裝基底7〇上 的開關元件60、開關控制器84、電力開關電路85、驅動 器86、發光元件61、驅動器87、及發光元件62。 電源電路81從商業AC (交流）電力及來自電池的 DC (直流）電力產生用於電子設備1的電路的DC電力。 系統控制器82控制電子設備1的系統。例如，當系 統啓動指令從開關控制器8 4輸入時，系統控制器8 2實施 啓動系統的處理。另外，系統控制器82管理系統的狀態 ’並且將系統的狀態（系統的開/關/待命）告知開關控制 器84。 開關元件60在被按壓時經由凸出部份56而被切換開 /關。 開關控制器8 4根據來自系統控制器8 2的狀態輸出例 如二元訊號至電力開關電路8 5。開關控制器84在系統的 狀態爲「開（on )」時輸出「1」至電力開關電路85，而 在狀態爲例如「待命（standby )」時輸出「0」至電力開 關電路8 5。 電力開關電路8 5根據來自開關控制器8 4的二元訊號 輸出二元訊號至驅動器86及驅動器87。 根據來自電力開關電路85的訊號，驅動器86供應/ 關斷在電力電路81中產生的對於發光元件61的DC電力 。根據來自電力開關電路8 5的訊號，驅動器8 7供應/關 斷電力電路81中產生的對於發光元件62的DC電力。 以下給予對製造（附著）電力開關單元〗〇的方法的 -17- 201001137 敘述。 圖1 5爲顯示製造（附著）電力開關單元1 〇的方法的 流程圖。假設在電力開關單元1 〇附著之前的主體部份3 已事先被製造。 發光構件12及形成光屏蔽膜之前的光屏蔽構件丨丨被 模製’並且光屏蔽膜藉著濺射而形成在光屏蔽構件η上 (ST1501)。 至於光屏蔽構件11的基底材料’可例如使用成爲用 來藉者例如灘射而形成光屏蔽膜的材料的A B S樹脂。對 於發光構件1 2 ’可使用具有半透明性的發乳白光的樹脂材 料’以使得光屏蔽膜不會藉著例如濺射而形成。光屏蔽構 件11及發光構件12可預先被製造，然後結合在一起。 連接於撓性基底的基板1 6從主體部份3的內部被插 入支撐構件15的基板固持部份53內。圖6所示的光屏蔽 構件1 1、發光構件1 2、環繞構件1 3、按鈕1 4、及支撑構 件1 5如圖7所示地被組裝’然後圖5所示的電力開關單 元1 〇被製造（S T 1 5 0 2 )。此時’定位部份4 2將發光構件 1 2及光屏蔽構件1 1相對於旋轉方向（圓周方向）定位， 以防止圖6所示的凸出腿部22被定位在電子設備1的前 方側。 圖4所示的電力開關單元1 0的定位部份4 1被固定於 圖1所示的主體側罩殼7的定位部份71 ( ST 1 5 0 3 )。定 位部份71爲幾近平行於鍵盤單元8的平面（圖1中的X_ Y平面）設置的壁。定位部份41與主體側罩殼7的定位 -18- 201001137 部份71在上述平面中重疊而被螺釘連接。 以下敘述從電力開關單元1 〇的發光元件6 1發射的光 的光學路徑。 圖16爲顯不從電力開關單元1〇的發光元件61發射 的光的光學路徑的簡圖。 舉例而言’從發光元件61發射的光進入擴散薄片5 〇 。進入擴散薄片50的光被擴散薄片5〇散射，通過透明的 按鈕1 4 ’且從按壓表面43從按鈕14射出至外部。由擴散 薄片50散射的光在由圖16的點劃線標示的軸線周圍均勻 地散射。結果’散射的光從底座部份46的中心的附近通 過角落部份49的附近，從發光構件12的斜面37等進入 發光構件1 2 ’在發光構件1 2中散射，通過環圈形發光部 份3 1 ’而以環圏形的形式朝向發光部份3 1的外部均勻地 擴散。 如上所述，根據此實施例，環圈形光屏蔽部份2 1環 繞按鈕14的外圓周表面44，因而可防止設計減損。從發 光元件61發射的光進入設置在按鈕14的底座部份46的 底部表面上的擴散薄片50而被散射，然後散射的光通過 按鈕14，且從按壓表面43從按鈕14射出，導致光從按壓 表面43射出。另外，從發光元件61發射的光進入設置在 按鈕14的底座部份46的底部表面上的擴散薄片50而被 散射，然後散射的光通過按鈕1 4及環圈形發光部份31， 於環圈形發光部份31中散射，且以發光部份3 1的外圓周 表面S爲出口，導致光從外圓周表面S射出。以光從環圈 -19- 201001137 形發光部份3 1的外圓周邊表面S射出的結構’只要藉著 提供發光元件6 1，按鈕1 4的發光狀態不只是可從一個側 表面（於圖16中的Y方向）確定，並且也可由操作電子 設備1的使用者在面對電子設備1的同時從前方確定。另 外，因爲環圈形發光部份3 1環繞於按鈕1 4的底座部份4 6 的附近的外圓周表面44，所以環圈形發光部份3 1相對於 一軸線（在圖1 6中平行於Y方向的由點劃線標示的軸線 )對稱。因此，環圈形發光部份3 1從其外圓周表面S均 勻地射出光。 電子設備1的環繞構件1 3設置有定位部份42，用來 將發光構件1 2及光屏蔽構件1 1相對於旋轉方向（圓周方 向）定位，以防止凸出腿部22被定位在電子設備1的前 方側（在圖6所示的X方向之側）。因此，以可防止凸出 腿部2 2被定位在電子設備1的前方側的結構，對於在面 對電子設備1之下操作電子設備1的使用者而言，可防止 按鈕1 4的發光狀態由於凸出腿部22而減損的情況。 如圖7所示，發光構件12包含凹入部份36，其環繞 按鈕14的底座部份46的外圓周表面48，且在與按鈕14 的底座部份46的外周邊上的角落部份49相對的位置處具 有斜面3 7。以發光構件1 2具有斜面3 7的結構，從按鈕 1 4的底座部份46的外周邊上的角落部份49的附近射出的 光在進入發光構件12時較不常被反射，導致從發光構件 1 2射出的光的量可增加。 如圖3所示，不論電子設備1被打開或關閉，電力開 -20- 201001137 關單元1 0的環圈形發光部份3 1恆常處於曝露於外部的狀 態。因此’甚至是在顯示部份2在電力打開之下被關閉時 ，也可在不檢查電子設備1的按鈕1 4之下在視覺上確認 來自環圈形發光部份3 1的光。 舉例而言，電子設備1在電力打開時使發光元件6 1 呈現紅（橘）光，或在省電及待命狀態中使發光元件62 閃綠光，導致使用者可確認這些狀態。 環圈形發光部份3 1是由半透明的樹脂材料（例如澄 淨聚碳酸酯（Clear PC(Clear Polycarbonate)))製成，而其 上不藉著濺射形成光屏蔽膜。光屏蔽構件11是由上面藉 著濺射而形成有光屏蔽膜的基底材料製成。因此，舉例而 言，在同一濺射製程中，可形成發光部份3 1及光屏蔽部 份21。如此，可縮短製造過程，且可降低製造成本。 電力開關單元10被設置於向來爲浪費的空間的錢鏈 的連接部份內，因而爲主體部份3及顯示部份2的組件的 配置提供自由度。藉著設計這些組件的設置方式，可促進 主體部份3及顯示部份2的厚度的減小。另外，電力開關 單元10被設置在遠離鍵盤單元8的位置處，且環繞按鈕 14成爲使得按鈕14的外圓周凸出。因此，可防止電力在 使用中意外地被關閉的情況。 本發明不限於上述的實施例。本發明可在其技術思想 的範圍內做各種不同的修改。執行修改的範圍屬於本發明 的技術範圍。 本案含有與2008年6月4日於日本專利局申請的日 -21 - 201001137 本優先權專利申請案JP2008 - 1 463 7 1號中所揭示者相關的 標的及內容，該案的整個揭示藉著參考結合於此。 【圖式簡單說明】 圖1爲根據一實施例的處於打開狀態的電子設備的立 體圖。 圖2爲處於關閉狀態的電子設備的立體圖。 圖3爲處於打開狀態的電子設備的平面圖。 圖4爲電力開關單元的立體圖。 圖5A、5B、5C、5D、及5E分別爲電力開關單元的 平面圖、左側視圖、前視圖、右側視圖、及仰視圖。 圖6爲電力開關單元的分解立體圖。 圖7爲沿線A - A所取的圖5 C所示的電力開關單元的 剖面圖。 圖8A、8B、8C、8D、及8E分別爲光屏蔽構件的平 面圖、左側視圖、前視圖、右側視圖、及仰視圖。 圖9A、9B、9C、9D、及9E分別爲發光構件的平面 圖、左側視圖、前視圖、右側視圖、及仰視圖。 圖 10A、10B、10C、10D、10E、及 10F 分別爲環繞 構件的平面圖、左側視圖、前視圖、右側視圖、仰視圖、 及後視圖。 圖11A、11B、11C、11D、及11E分別爲按鈕的平面 圖、左側視圖、前視圖、右側視圖、及仰視圖。 圖12A、12B、12C、12D、及12E分別爲支撐構件的 -22- 201001137 平面圖、左側視圖、前視圖、右側視圖、及仰視圖。 圖13A、13B、13C、13D、及13E分別爲基板的平面 圖、左側視圖、前視圖、右側視圖、及仰視圖。 圖14爲顯示電子設備的系統的結構的方塊圖。 圖1 5爲顯示製造（附著）電力開關單元的方法的流 程圖。 圖16爲顯示從電力開關單元的發光元件發射的光的 光學路徑的簡圖。 【主要元件符號說明】 1 :電子設備 2 :顯示部份 3 :主體部份 4 :鉸鏈 4a :連接部份 4b :連接部份 5 :顯示側罩殼 6 :顯示表面 7 :主體側罩殻 8 :鍵盤單元 1 0 :電力開關單元 1 1 :光屏蔽構件 1 2 :發光構件 1 3 :環繞構件 -23- 201001137 1 4 :按鈕 1 5 :支撐構件 1 6 :基板 2 1 :環圈形光屏蔽部份 22 :凸出腿部 2 3 :圓形開口 24 :凸出部份 2 5 :斜面 26 :內圓周表面 3 0 :定位凸出部份 3 1 :環圈形發光部份 3 2 :腿部 33 :孔 34 :開口 3 6 :凹入部份 3 7 :斜面 40 :環繞構件主體 4 1 :定位部份 4 2 :定位部份 4 3 :按壓表面 4 4 :外圓周表面 4 5 :凸出部份 4 6 :底座部份 4 7 :凸出部份 -24- 201001137 4 8 :外圓周表面 49 :角落部份 5 〇 :擴散薄片 5 1 :環圏部份 5 2 :彈性部份 5 3 :基板固持部份 54 :支撐部份 55 :孔 5 6 ’·凸出部份 60 :開關元件（觸覺開關） 61 :發光元件 62 :發光元件 70 :安裝基底 71 :定位部份 80 :電子設備的系統 8 1 :電力電路 8 2 :系統控制器 84 :開關控制器 8 5 :電力開關電路 86 :驅動器 8 7 :驅動器 P1 :第一位置 P2 :第二位置 r 1 :第一半徑 -25- 201001137 r2 :第二半徑 S :外圓周表面 -26-201001137 VI. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to an electronic device such as a laptop personal computer and to an electronic component mounted to the electronic device. [Prior Art] An electronic device such as a laptop personal computer (PC) is required to be provided with a button or the like without hindering the reduction in size and thickness while enhancing the design of the electronic device. In the technique disclosed in Japanese Patent Application Laid-Open No. 2 0 〇 5 - 1 2 8 8 0 5 (paragraph 01 3 5, FIG. 3, 3 5, etc.) (hereinafter referred to as Patent Document 1), a power switch is set At one end of a hinge, the hinge rotatably connects the cover provided with the keyboard and the like to the cover provided with the display portion. When the power is turned on, the power switch emits light by, for example, a light-emitting element, which can easily visually confirm the state in which the power is turned on. In the technique disclosed in Patent Document 1, the power switch is exposed at one end of the hinge. This causes the user to accidentally touch the power switch to cause the power to be unintentionally turned off. In view of this, a light shielding portion having a protruding portion may be provided, the protruding portion of which surrounds the power switch and is convex like the pressing surface of the power switch. This light shielding portion is mainly subjected to plating treatment or the like from the viewpoint of design. However, when the light shielding portion is provided, since the light shielding portion blocks the light, the user operating the electronic device may be difficult to recognize the light emitted from the power switch in some cases when facing the electronic device. -5- 201001137 SUMMARY OF THE INVENTION In view of the above circumstances, it is desirable to provide an electronic device and an electronic component that can allow a user operating the electronic device to face the electronic device without detracting from the design of the electronic device and the electronic component. The light state of the button can be determined. According to an embodiment, an electronic device is provided. The electronic device includes a main body of the electronic device 'button, a light-emitting portion having a loop shape, a light-shielding portion having a loop shape, a supporting member, a light-emitting element, and a switching element. The electronic device body includes a button configuration portion on one of its lateral sides. A button is disposed on the button arranging portion and made of a material that passes light, and the button has a cylindrical shape having a first radius and includes a base portion and a pressing surface on the opposite side of the base portion. The base portion has a second radius that is greater than the first radius. The light-emitting portion is fixed to a side of the button arrangement portion and includes an inner circumferential surface surrounding the outer circumferential surface of the base portion and the base portion of the button, and an outer circumferential surface exposed to the outside. The illuminating portion is made of a material that scatters light. The light shielding portion is fixed to the light emitting portion such that the light shielding portion and the button arrangement portion sandwich the light emitting portion therebetween, and the light shielding portion includes an inner circumferential surface surrounding the outer circumferential surface of the button, and A convex portion that is convex compared to the pressing surface. The light shielding part is made of a material that prevents light from passing through. The support member elastically supports the button from one side of the main body of the electronic device. The light emitting element emits light toward a near center of the bottom surface of the base portion of the button. The light emitting element is disposed on the side of the electronic device body. The switching element is switched by being pressed by the base portion of the button. -6-201001137 In the electronic device according to this embodiment, the ring-shaped light shielding portion surrounds the outer circumferential surface of the button, thereby preventing design loss. Light emitted from the light-emitting element enters the bottom surface of the base portion of the button, passes through the button, and exits with the pressed surface of the button, causing light to be emitted from the pressing surface. In addition, the light emitted from the light-emitting element enters the bottom surface of the base portion of the button, and is scattered in the ring-shaped light-emitting portion through the button and the ring-shaped light-emitting portion, and the outer circumferential surface of the ring-shaped light-emitting portion For the exit, the light is emitted from the outer circumferential surface. The structure in which light is emitted from the peripheral surface of the outer circumference of the ring-shaped light-emitting portion can be determined not only from one lateral side but also from the user operating the electronic device by providing at least one light-emitting element. The party is sure. Further, the ring-shaped light-emitting portion surrounds the outer circumferential surface of the base portion and the vicinity of the base portion of the button, and thus has a structure symmetrical with respect to an axis. Therefore, the ring-shaped light-emitting portion uniformly emits light from the outer circumferential surface thereof. The light shielding portion may include a protruding leg portion for fixing by the light emitting portion, and the electronic device may further include a positioning portion to position the light emitting portion and the light shielding portion relative to a rotation direction to prevent the protruding leg The portion is positioned on the front side of the main body of the electronic device. In a structure in which the protruding leg portion can be prevented from being positioned on the front side of the electronic device main body, it is possible to prevent the light-emitting state of the button from being degraded by the protruding leg portion for the user who operates the electronic device under the electronic device. The light-emitting portion may include a concave portion 'and the concave portion surrounds an outer circumferential surface of the base portion of the button' and the concave portion is opposite to a corner portion on the outer periphery of the base portion 201001137 of the button The position has a bevel. By providing the slope, the light emitted from the corner portion on the outer periphery of the base portion of the button is less frequently reflected when entering the light-emitting portion, so that the amount of light emitted from the light-emitting portion can be further increased. The electronic device may additionally include a diffusion sheet disposed on a bottom surface of the base portion of the button. With this diffusion sheet, the light emitted from the light-emitting element is diffused to enter the button. Therefore, light can be emitted from the pressing surface and the outer circumferential surface of the light-emitting portion more uniformly. The electronic device body may include a first cover including a first surface and an operation portion disposed on the first surface; a second cover including the second surface, and a display portion disposed at the second a second surface may face the first surface; and a hinge rotatably connecting the first cover to the second cover on the back side of the electronic device body, the hinge having a cylindrical shape and at one end thereof The button configuration section is set on the top. The structure in which the button for emitting light from the pressing surface and the outer circumferential surface of the light-emitting portion is provided at one end of the hinge having the cylindrical shape can further improve the design. According to another embodiment, an electronic component is provided. The electronic component includes a button, a light-emitting portion having a loop shape, and a light-shielding portion having a loop shape. The button is made of a material that passes light and has a cylindrical shape with a first radius. The button includes a base portion and a pressing surface on an opposite side of the base portion, and the base portion has a second radius greater than the first radius. The light-emitting portion includes an outer circumferential surface surrounding the base portion and a bottom inner surface of the button -8-201001137, and an outer circumferential surface exposed to the outside. The illuminating portion is made of a material that scatters light. The light shielding portion is fixed to the light emitting portion, and includes an inner circumferential surface surrounding the outer circumferential surface of the button, and a convex portion which is convex as compared with the pressing surface. The light shielding portion is made of a material that prevents light from passing therethrough. In the electronic component according to this embodiment, the ring-shaped light shielding portion surrounds the outer circumferential surface of the button, thereby preventing design loss. Light emitted from the light-emitting element enters the bottom surface of the base portion of the button, passes through the button, and exits with the pressing surface, causing light to be emitted from the pressing surface. In addition, the light emitted from the light-emitting element enters the bottom surface of the base portion of the button, and is scattered in the ring-shaped light-emitting portion through the button and the ring-shaped light-emitting portion, and the outer circumferential surface of the ring-shaped light-emitting portion For the exit, the light is emitted from the outer circumferential surface. A structure in which light is emitted from the peripheral surface of the outer circumference of the ring-shaped light-emitting portion. As long as at least one light-emitting element is provided, the light-emitting state of the button can be determined not only from one lateral side but also from the user who operates the electronic device. The party is sure. Further, the ring-shaped light-emitting portion surrounds the outer circumferential surface of the base portion and the vicinity of the base portion of the button, and thus has a structure symmetrical with respect to an axis. Therefore, the ring-shaped light-emitting portion uniformly emits light from the outer circumferential surface thereof. The light shielding portion may include a protruding leg portion for fixing by the light emitting portion, and the electronic component may additionally include a positioning member to position the light emitting portion and the light shielding portion with respect to a rotational direction. In order to prevent the protruding leg from being positioned on the front side of the electronic device body, for the user operating the electronic device under the electronic device, the light-emitting state of the button can be prevented due to the protruding leg Partially derogated. The light-emitting portion may include a concave portion that surrounds an outer circumferential surface of the base portion of the button, and the concave portion is located at a position opposite to a corner portion on the outer periphery of the base portion of the button It has a bevel on it. By providing the slope, the light emitted from the corner portion on the outer periphery of the base portion of the button is less frequently reflected when entering the light-emitting portion, so that the amount of light emitted from the light-emitting portion can be further increased. As described above, according to the embodiment, the light-emitting state can be confirmed by the user who operates the electronic device while facing the electronic device without detracting from the design. These and other objects, features and advantages of the present invention will become apparent from [Embodiment] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In this embodiment, a description will be made for a laptop computer that is used as an example of an electronic device. 1 is a perspective view of an electronic device in an open state, in accordance with an embodiment. 2 is a perspective view of an electronic device in a closed state. Figure 3 is a plan view of the electronic device in an open state. The electronic device 1 includes a display portion 2, a main body portion 3, and a hinge 4 for connecting the display portion 2 to the main body portion 3. The display portion 2 can be opened and closed relative to the main body portion 3 via the hinge 4. The display portion 2 includes a display side cover 5, a display surface 6', and -10 - 201001137 a display processing unit (not shown) provided in the display side cover 5 and performing display processing. The display side cover 5 is a cover that houses the display portion 2 of the display processing unit (not shown). The display surface 6 is a screen for displaying information, and faces the main body portion 3 in the closed state. The main body portion 3 includes a main body side cover 7, a keyboard unit 8, a central processing unit (not shown), a hard disk device (not shown), and the like. The main body side cover 7 is a cover of the main body or main body portion 3, and has two cylindrical connecting portions 4a. The keyboard unit 8 is provided with a plurality of keys and the like, and functions as an input portion of the electronic device 1. The central processing unit is mounted on a multilayer printed wiring board within the main body side casing 7. The central processing unit receives the input signal from the keyboard unit 8 and performs various different processes such as calculation processing, control processing, image processing, and output processing on the display portion 2, thus substantially acting as a function or function. Part. The hinge 4 is constructed by a hinge structure by rotatably connecting the connecting portion 4a fixed to the main body portion 3 and the connecting portion 4b provided on the display portion 2. A power switch unit 1 设置 is provided on the connecting portion 4a of the right end portion of the hinge 4 in the axial direction (the γ direction in Fig. 1). The power switch unit 10 is fixed to the main body side cover 7, for example. 4 is a perspective view of the power switch unit 1A. 5a, 5B, 5C, 5D, and 5E are a plan view, a left side view, a front view, a right side view, and a bottom view, respectively, of the power switch unit 1 。. Fig. 6 is an exploded perspective view of the power switch unit 1A. Figure 7 is a cross-sectional view of the power switch -11 - 201001137 unit 1 取 taken along line A-A of Figure 5C. As shown in FIGS. 4 to 7, the power switch unit 1A includes a light shielding structure 1, a light emitting member 1, a surrounding member 13, a button 14, a supporting member 15, and a substrate 16. The power switch unit 1 is constructed by the combination of the above members as shown. Figure 8Α, 8Β, 8C, 8D, and 8Ε are light shielding members respectively! ! Floor plan, left side view, front view, right side view, and bottom view. As shown in the figure, the light shielding member 11 includes a ring-shaped light shielding portion 21 and a plurality of protruding leg portions 22. The loop-shaped light shielding portion 21 is formed integrally with the projecting legs 22. The ring-shaped light shielding portion 21 has a circular opening, and the button 14 is fitted into the circular opening 23. As shown in Fig. 7, the ring-shaped light shielding portion 21 includes a convex portion 24 which protrudes outward in the direction in which the button 14 is pressed (the Υ direction in Fig. 7). The opening 23 is formed at a position of the recess as compared with the projection 24. As shown in FIG. 7, the ring light shielding portion 21 has a slope surface 25 which is formed so as to be recessed from the outer circumferential side of the light shielding portion 2 1 toward the center indicated by the chain line of FIG. As shown in Fig. 7, the ring-shaped light shielding portion 21 has a circumferential surface 26 which forms the opening 23. The inner circumferential surface 26 of the light shielding portion 21 is opposed to a portion of the outer circumferential surface 44 of the button as shown in FIG. As shown in Fig. 8, three projecting leg portions 22 are provided at regular intervals (at regular angular intervals) in the circumferential direction of the ring-shaped light-shielding portion 21. The outer surface of the light-shielding member 11 shown in, for example, Fig. 4 is subjected to sputtering, and the light-shielding film is formed on the other surface. The light-shielding portion 2 1 can be passed through, for example, a light-shielding film formed by sputtering, and the portion 23 of the group 23 is in a bad-pressured shape. The light -12-201001137 cannot pass. 9A, 9B, 9C, 9D, and 9E are a plan view, a left side view, a front view, a right side view, and a bottom view, respectively, of the light emitting member 12. As shown in Fig. 6, the light-emitting member 12 includes a positioning convex portion 3, a ring-shaped light-emitting portion 31, and a leg portion 32. In the positioning projection portion 30, a plurality of holes 33 are formed at positions corresponding to the plurality of projecting leg portions 22 of the light shielding member 11. The projecting leg portion 22 is inserted into the hole 3 3, thereby positioning the light shielding member 1 1 and the light emitting member 12 . The positioning projection 30 is formed with an opening 34, and the button 14 is fitted into the opening 34. As shown in Fig. 7, the outer circumferential surface s of the ring-shaped light-emitting portion 31 is exposed to the outside through a gap between the light-shielding member 11 and the surrounding member 13. As the material used for the ring-shaped light-emitting portion 31, for example, an opalescent resin material having translucency can be used. As shown in Fig. 7, the leg portion 32 is inserted into the surrounding member 13 and is fixed to the surrounding member 13. As shown in Figures 7 and 9E, the illumination member 12 includes a recessed portion 36 that surrounds the outer circumferential surface 48 of the base portion 46 (described later) of the button 14. The concave portion 36 is constituted by the loop-shaped light-emitting portion 31, the leg portion 32, and the like. The concave portion 36 includes a slope 37 at a position relative to the corner portion 49 of the button 14. Figure 1 〇人,1〇8,1〇(:,1〇〇,1〇£, and 1(^ are the plan view of the surrounding member 13, respectively, left side view, front view, right side view, bottom view-13-201001137 And the rear view. The surrounding member 13 includes a cylindrical surrounding member body 40 and a positioning portion 41. The surrounding member body 40 fixes the leg portion 32 of the light emitting member 12 in a position, and surrounds the supporting member 15, the substrate 16, and the like. The positioning portion 41 protrudes from the side surface of the surrounding member main body 4. The positioning portion 41 is fixed to, for example, the positioning portion 71 of the main body side cover 7. On the inner circumferential surface side of the surrounding member main body 40, There is a positioning portion 42. The positioning portion 42 positions the light emitting member 12 and the light shielding member 11 with respect to the rotation direction (circumferential direction) to prevent the protruding leg portion 22 of the light shielding member 11 from being positioned on the electronic device 1. The front surface side (X direction in Fig. 6) Fig. 1 1 A, 1 1 B, 1 1 C, 1 1 D, and 1 1 E are the plan view, left side view, front view, and right side view of the button 14 And a bottom view. The button 14 is power that is pressed by the user when the electronic device 1 is to be supplied with power. The button 14 has a cylindrical shape and includes a convex portion 45 and a base portion 46. The button 14 is made of a transparent material such as ABS resin through which light can pass. The output portion 45 is fitted into the opening 23 of the light shielding member 11 and the opening 34 of the light emitting member 12. As shown in Figs. 11A to 11E, the radius of the convex portion 45 is the first radius rl, and the base portion 46 The radius is a second radius r2 greater than the first radius rl. The convex portion 45 includes a pressing surface 43 pressed by a user. As shown in Fig. 7, the pressing surface 43 pressed by the user is in contact with the convex portion 24. A pair of convex portions 47 of different diameters of -14-201001137 are formed on the base portion 4.6 at a position to be recessed as shown in FIG. 9C for performing, for example, relative to the support member 1 Positioning of 5. As shown in Fig. 7, the corner portion 49 of the outer circumferential surface 48 of the base portion 46 is opposed to the inclined surface 37 of the light-emitting member 12. The support member 1 shown in Fig. 1 1 E On the surface of the base portion 46 of the button 14 on the side of the 5, a diffusion sheet 50 is provided which covers almost the entire surface, as shown in Fig. 7. As shown, light can be uniformly radiated from the surface of the button 14 by providing the diffusion sheet 50'. Further, the state of the inside of the button 14, such as the surface of the substrate 16, can be hidden by the diffusion sheet 50. Fig. 12A 12B, 12C, 12D, and 12E are a plan view, a left side view, a front view, a right side view, and a bottom view, respectively, of the support member 15. The support member 15 elastically supports the button 14 such that when the user presses the pressing surface of the button 14. At 430, the button 14 is depressed, and when the user does not press the pressing surface 43, the button returns to the initial position shown in FIG. The support member 15 supports the substrate 16. The support member 15 includes a loop portion 51, an elastic portion 5, a substrate holding portion 53, a support portion 54, and the like. As shown in Fig. 6, the ring portion 51 has a pair of holes 55, and the pair of projecting portions 47 of the button 14 are inserted into the pair of holes 55. As shown in Figs. 7, 12B, and 1 2E, the convex portion 56 is disposed on the surface of the loop portion 51 on the opposite side of the button 14. As shown in Fig. 7, the convex portion 56 is disposed at the first position p! of the loop portion 51 opposite to the switching element 60. As shown in Figs. 12B and 12D, the elastic portion 52 has a curved shape and is formed integrally with the loop portion 51 and the like. The elastic portion 52 is elastic at a second position P 2 (see Fig. 7 and Fig. 1 2 B) at a side opposite to the first position p 1 with respect to the center of the loop of the loop portion 51 The ground support ring portion 5 1° is as shown in FIG. 6 , the substrate holding portion 5 3 is approximately in the shape of a dove shape, and the substrate 16 is held in a state in which the substrate 16 is inserted into the substrate holding portion 53. As shown, in a state where the substrate 16 is held by the substrate holding portion 533, a switching element (tact switch) 60 is opposed to the convex portion 56, and the light-emitting element 61 corresponds to the ring portion 5 1 Near the center, the support portion 5 4 is used to support the elastic portion 5, the substrate holding portion 5 3, and the like. The support portion 5 4 is integrally formed with the elastic portion 5 2, the substrate holding portion 5 3 and the like. 13, 138, 13 (:, 130, and 13 are respectively a plan view, a left side view, a front view, a right side view, and a bottom view of the substrate 16. The substrate 16 includes a mounting substrate 70 that is mounted on the mounting substrate 70. The switching element 60, the light-emitting element 61, the light-emitting element 62, etc. As shown in Fig. 7, the switching element 60 is disposed opposite to the convex portion 56. The switching element 60 is in contact with the convex portion 56. The light-emitting elements 6 1 and 62 emit light toward, for example, the near center of the button 14 (diffusion sheet 50). For example, LEDs (light-emitting diodes) can be used as the respective light-emitting elements 61 and 62. 4 is a block diagram showing the structure of the system of the electronic device 1. The system 80 of the electronic device 1 includes a substrate 16, a power or power supply circuit 81, and a system controller 82. -16 - 201001137 The substrate 16 is provided with a mounting substrate 70, which is mounted The switching element 60 on the substrate 7 is mounted, the switch controller 84, the power switch circuit 85, the driver 86, the light-emitting element 61, the driver 87, and the light-emitting element 62. The power supply circuit 81 is from commercial AC (AC) power and from the battery. DC (direct current) power DC power is generated for the circuit of the electronic device 1. The system controller 82 controls the system of the electronic device 1. For example, when a system start command is input from the switch controller 84, the system controller 82 implements processing of the boot system. The system controller 82 manages the state of the system 'and informs the switch controller 84 of the state of the system (on/off/standby of the system). The switching element 60 is switched on/off via the protruding portion 56 when pressed. The switch controller 84 outputs, for example, a binary signal to the power switch circuit 85 according to the state from the system controller 82. The switch controller 84 outputs "1" to the power switch circuit when the state of the system is "on" 85, and outputting "0" to the power switch circuit 8 when the state is, for example, "standby". The power switch circuit 8 5 outputs a binary signal to the driver 86 and the driver according to the binary signal from the switch controller 84. 87. Based on the signal from the power switch circuit 85, the driver 86 supplies/turns off the DC power generated for the light-emitting element 61 generated in the power circuit 81. According to the power switch circuit 85 No., the driver 8 7 supplies/turns off the DC power generated for the light-emitting element 62 in the power circuit 81. The following describes the method of manufacturing (attaching) the power switch unit -17-201001137. Fig. 15 shows the manufacturing A flowchart of a method of attaching (attaching) the power switch unit 1 。. It is assumed that the main body portion 3 before the power switch unit 1 is attached has been manufactured in advance. The light-emitting member 12 and the light-shielding member before the light-shielding film is formed are molded. The light-shielding film is formed on the light-shielding member η by sputtering (ST1501). As the base material ' of the light-shielding member 11, for example, an A B S resin which is a material for forming a light-shielding film by borrowing, for example, a beach shot can be used. For the light-emitting member 1 2 ', a milky white resin material having a translucency can be used so that the light-shielding film is not formed by, for example, sputtering. The light shielding member 11 and the light emitting member 12 can be manufactured in advance and then joined together. The substrate 16 connected to the flexible substrate is inserted into the substrate holding portion 53 of the support member 15 from the inside of the main body portion 3. The light-shielding member 11 shown in Fig. 6, the light-emitting member 1, the surrounding member 13, the button 14, and the support member 15 are assembled as shown in Fig. 7 and then the power switch unit 1 shown in Fig. 5 It is manufactured (ST 1 5 0 2 ). At this time, the positioning portion 42 positions the light-emitting member 12 and the light-shielding member 11 with respect to the rotation direction (circumferential direction) to prevent the protruding leg portion 22 shown in FIG. 6 from being positioned on the front side of the electronic device 1. . The positioning portion 4 1 of the power switch unit 10 shown in Fig. 4 is fixed to the positioning portion 71 (ST 1 5 0 3 ) of the main body side casing 7 shown in Fig. 1 . The positioning portion 71 is a wall which is disposed almost parallel to the plane of the keyboard unit 8 (X_Y plane in Fig. 1). The positioning portion 41 is positioned with the main body side cover -18 - 201001137 The portion 71 is overlapped in the above plane and screwed. The optical path of the light emitted from the light-emitting element 61 of the power switch unit 1A will be described below. Fig. 16 is a schematic diagram showing an optical path of light emitted from the light-emitting element 61 of the power switching unit 1A. For example, light emitted from the light-emitting element 61 enters the diffusion sheet 5 〇 . The light entering the diffusion sheet 50 is scattered by the diffusion sheet 5, passes through the transparent button 14', and is emitted from the pressing surface 43 from the button 14 to the outside. Light scattered by the diffusion sheet 50 is uniformly scattered around the axis indicated by the alternate long and short dash line of Fig. 16. As a result, the "scattered light" passes from the vicinity of the center of the base portion 46 through the vicinity of the corner portion 49, enters the light-emitting member 1 2 ' from the inclined surface 37 of the light-emitting member 12, and the like, and scatters through the ring-shaped light-emitting portion. The portion 3 1 ' is uniformly diffused toward the outside of the light-emitting portion 31 in the form of a ring-shaped shape. As described above, according to this embodiment, the ring-shaped light shielding portion 2 1 surrounds the outer circumferential surface 44 of the button 14, thereby preventing design loss. Light emitted from the light-emitting element 61 enters the diffusion sheet 50 provided on the bottom surface of the base portion 46 of the button 14 to be scattered, and then the scattered light passes through the button 14 and is emitted from the pressing surface 43 from the button 14, resulting in light from The pressing surface 43 is emitted. Further, the light emitted from the light-emitting element 61 is scattered by the diffusion sheet 50 provided on the bottom surface of the base portion 46 of the button 14, and then the scattered light passes through the button 14 and the ring-shaped light-emitting portion 31, in the ring. The circle-shaped light-emitting portion 31 is scattered, and the outer circumferential surface S of the light-emitting portion 31 is an exit, causing light to be emitted from the outer circumferential surface S. The structure of the light emitted from the outer peripheral surface S of the ring-shaped portion -19-201001137-shaped light-emitting portion 3 1 'as long as the light-emitting element 6 1 is provided, the light-emitting state of the button 14 is not only from one side surface (in the figure) The Y direction in 16 is determined, and can also be determined from the front by the user operating the electronic device 1 while facing the electronic device 1. Further, since the ring-shaped light-emitting portion 31 surrounds the outer circumferential surface 44 in the vicinity of the base portion 46 of the button 14, the ring-shaped light-emitting portion 31 is parallel to an axis (parallel in Fig. 16. The axis indicated by the dotted line in the Y direction is symmetrical. Therefore, the ring-shaped light-emitting portion 31 uniformly emits light from its outer circumferential surface S. The surrounding member 13 of the electronic device 1 is provided with a positioning portion 42 for positioning the light emitting member 12 and the light shielding member 11 with respect to the rotational direction (circumferential direction) to prevent the protruding leg portion 22 from being positioned at the electronic device. The front side of 1 (on the side of the X direction shown in Fig. 6). Therefore, in a structure in which the protruding leg portion 2 2 can be prevented from being positioned on the front side of the electronic device 1, the light-emitting state of the button 14 can be prevented for the user who operates the electronic device 1 under the electronic device 1 The condition is degraded by the protrusion of the leg portion 22. As shown in FIG. 7, the light emitting member 12 includes a recessed portion 36 that surrounds the outer circumferential surface 48 of the base portion 46 of the button 14 and a corner portion 49 on the outer periphery of the base portion 46 of the button 14. The opposite position has a slope 3 7 . With the structure in which the light-emitting member 12 has the inclined surface 37, light emitted from the vicinity of the corner portion 49 on the outer periphery of the base portion 46 of the button 14 is less frequently reflected when entering the light-emitting member 12, resulting in light emission. The amount of light emitted by the member 12 can be increased. As shown in Fig. 3, regardless of whether the electronic device 1 is turned on or off, the ring-shaped light-emitting portion 31 of the power-on -20-201001137-off unit 10 is constantly exposed to the outside. Therefore, even when the display portion 2 is turned off under the power-on, the light from the ring-shaped light-emitting portion 31 can be visually confirmed without checking the button 14 of the electronic device 1. For example, the electronic device 1 causes the light-emitting element 6 1 to emit red (orange) light when the power is turned on, or causes the light-emitting element 62 to flash green in the power-saving and standby state, so that the user can confirm these states. The ring-shaped light-emitting portion 31 is made of a translucent resin material (e.g., Clear PC (Clear Polycarbonate)), and a light-shielding film is not formed thereon by sputtering. The light shielding member 11 is made of a base material on which a light shielding film is formed by sputtering. Therefore, for example, in the same sputtering process, the light-emitting portion 31 and the light-shielding portion 21 can be formed. In this way, the manufacturing process can be shortened and the manufacturing cost can be reduced. The power switch unit 10 is disposed in the connection portion of the money chain which is a wasteful space, thereby providing freedom for the arrangement of the components of the main body portion 3 and the display portion 2. By designing the arrangement of these components, the thickness reduction of the main body portion 3 and the display portion 2 can be promoted. Further, the power switch unit 10 is disposed at a position away from the keyboard unit 8, and the surround button 14 becomes such that the outer circumference of the button 14 is convex. Therefore, it is possible to prevent the power from being accidentally turned off during use. The invention is not limited to the embodiments described above. The present invention can be variously modified within the scope of its technical idea. The scope of execution of the modifications is within the technical scope of the present invention. The present invention contains the subject matter and contents relating to those disclosed in Japanese Patent Application No. JP-A-2008- No. The reference is incorporated herein. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of an electronic device in an open state, according to an embodiment. 2 is a perspective view of an electronic device in a closed state. Figure 3 is a plan view of the electronic device in an open state. 4 is a perspective view of a power switch unit. 5A, 5B, 5C, 5D, and 5E are a plan view, a left side view, a front view, a right side view, and a bottom view, respectively, of the power switch unit. Fig. 6 is an exploded perspective view of the power switch unit. Figure 7 is a cross-sectional view of the power switch unit shown in Figure 5C taken along line A - A. 8A, 8B, 8C, 8D, and 8E are a plan view, a left side view, a front view, a right side view, and a bottom view, respectively, of the light shielding member. 9A, 9B, 9C, 9D, and 9E are a plan view, a left side view, a front view, a right side view, and a bottom view, respectively, of the light emitting member. 10A, 10B, 10C, 10D, 10E, and 10F are a plan view, a left side view, a front view, a right side view, a bottom view, and a rear view, respectively, of the surrounding member. 11A, 11B, 11C, 11D, and 11E are a plan view, a left side view, a front view, a right side view, and a bottom view, respectively, of the button. 12A, 12B, 12C, 12D, and 12E are a plan view, a left side view, a front view, a right side view, and a bottom view, respectively, of the support member -22-201001137. 13A, 13B, 13C, 13D, and 13E are a plan view, a left side view, a front view, a right side view, and a bottom view, respectively, of the substrate. Figure 14 is a block diagram showing the structure of a system of an electronic device. Fig. 15 is a flow chart showing a method of manufacturing (attaching) a power switch unit. Fig. 16 is a diagram showing an optical path of light emitted from a light emitting element of a power switching unit. [Main component symbol description] 1 : Electronic device 2 : Display portion 3 : Main body portion 4 : Hinge 4a : Connection portion 4b : Connection portion 5 : Display side cover 6 : Display surface 7 : Main body side cover 8 : Keyboard unit 1 0 : Power switch unit 1 1 : Light shielding member 1 2 : Light-emitting member 1 3 : Surrounding member -23- 201001137 1 4 : Button 1 5 : Support member 1 6 : Substrate 2 1 : Ring-shaped light shielding Part 22: protruding leg 2 3 : circular opening 24: convex portion 2 5 : inclined surface 26: inner circumferential surface 3 0 : positioning convex portion 3 1 : ring-shaped luminous portion 3 2 : leg Portion 33: hole 34: opening 3 6 : recessed portion 3 7 : bevel 40 : surrounding member body 4 1 : positioning portion 4 2 : positioning portion 4 3 : pressing surface 4 4 : outer circumferential surface 4 5 : convex Outer part 4 6 : Base part 4 7 : Projection part - 24 - 201001137 4 8 : Outer circumferential surface 49 : Corner part 5 〇: Diffusion sheet 5 1 : Ring part 5 2 : Elastic part 5 3: substrate holding portion 54: support portion 55: hole 5 6 '· protruding portion 60: switching element (tactile switch) 61: light-emitting element 62: light-emitting element 70: mounting substrate 71: positioning portion 80: electricity System of equipment 8 1 : Power circuit 8 2 : System controller 84 : Switch controller 8 5 : Power switch circuit 86 : Driver 8 7 : Driver P1 : First position P2 : Second position r 1 : First radius -25 - 201001137 r2 : Second radius S : outer circumferential surface -26-