513587 A7 B7 部 屮 印 五、發明説明（ 〔發明所屬之技術領域〕 本發明係關於一種液晶顯示裝置，尤其是關於省空間 設計的液晶顯不裝置。 〔以往之技術〕 有一種使用冷陰極放電管做爲液晶顯示裝置之背面照 明之光源。在液晶顯示裝置之盒體內，冷陰極放電管係收 容於側部或底面，在液晶顯示板之背面有設置導光板或擴 散板，藉此擴散冷陰極放電管之光，可照明液晶顯示板之 全面的構成。以往，爲驅動該冷陰極放電管，在冷陰極放 電管兩端之電極分別連接有電配線，該電配線係以沿著冷 陰極放電管的形狀配線。 第1 6圖係顯示以往之液晶顯示裝置之一部分的槪略 構成圖。對冷陰極放電管1之兩端連接有驅動該放電管用 的電配線2 a，2 b。又，雙方電配線之先端安裝有連接 器3，連接於對冷陰極放電管1施加電壓用之電源。電配 線2 a係沿著冷陰極放電管1而設，與冷陰極放電管1平 行的狀態收容於形成在下盒體4的溝部4 a。由電配管 2 a，2 b所驅動的冷陰極放電管1係用以使背面照明部 5發光。冷陰極放電管1及電配線2 a，2 b係由蓋體6 所覆蓋，在下拿體4之上部，依次設有其側面部設有印刷 電路基板8，8的液晶顯示板7，及上盒體9，並由螺絲 1 0，1 0所固定。該印刷電路基板8，8形成有驅動液 晶顯示板7用之驅動電路，安裝有分別驅動液晶顯示板7 本纸張尺度過州中國國家標準（CNS ) Λ4規格（210X297公釐） -4- (讀先閱讀背面之注意事項再填寫本頁} 513587 A7 一— —__ B7 _ 五、發明説明（2 ) 之共同電極，片段電極用之驅動L S I 。 〔發明所欲解決之課題〕 有例如車載用液晶顯示器等，特別要求液晶顯示裝置 小型化的領域。以往之液晶顯示裝置中，有電配線2 a以 沿著冷陰極放電管1的形狀收容於下盒體4內的關係，需 要收容電配線2 a ，2 b 制 〇 又 5 需 要 將 電 配 線 2 業 因 此 在 裝 配 作 業 效 鑑 於 上 情 本 發 明 之 置 其 爲 削 減 液 晶 顯 示 同 時 提 局 裝 配 作 業 效 率 [ 用 以 解 決 課 題 之 手 段 ] 爲 削 減 收 容 電 配 線 起 晶 顯 示 板 之 驅 動 電 路 之 印 上 組 裝 光 源 用 驅 動 電 路 來 Μ 也 就 是 說 有 關 本 發 、,） /?* 部 備 有 中 -火 液 晶 顯 示 板 11 對 該 液 晶 顯 示 板 供 給 'i f 與 液 晶 顯 示 板 電 性 連 合 μ 驅 動 液 晶 顯 示 板 用 驅 動 電 卬 f 路 之 印 刷 電 路 基 板 > 及 本紙張尺度適W中國國家標準（CNS ) Λ4規格（21〇X 297公釐） 用之空間，對盒體之小形化有限 a，2b收容於下盒體4內之作 之點也有問題。 目的，在於提供一種液晶顯不裝 裝置內的空間來便盒體小型化之 的液晶顯示裝置者。 見，本發明者等爲著眼於設有液 刷電路基板，對該印刷電路基板 解決上述之課題。 明之液晶顯示裝置之特徵爲，具 光的光源， 接之同時，有光源固定，形成有 路及驅動光源用之光源用驅動電 (讀先閲讀背面之注意事項再填寫本頁) -5- 513587 A7 B7 - •-一 --------- 一 ---* - 1 " '" "榻 ~ «, ^ -_- - | M | 五、發明说明（3 ) 收容液晶顯示板，光源及印刷電路基板用之盒體者。 (謂先閱讀背面之注意事項凋填寫本頁) 將光源用驅動電路設在印刷電路基板上的結果，不需 要以往的電配線，可削減收容電配線用之液晶顯示裝置內 之空間。 以往，電配線是收容於形成在下盒體的溝部內。然而 因該收容步驟成爲不要的關係，可減少工數而可提高裝配 作業效率。 叉，在上述液晶顯示裝置中，於印刷電路基板上之液 晶顯不板用驅動電路內’對液晶顯不板供給光之光源之一* 方之電極給予電位用之配線，與液晶顯示板用驅動電路之 基準電位配線成爲共用也可以。 於是，可使裝配有光源用驅動電路而變成複雜的印刷 電路基板上之配線圖案簡化，可實現低成本設計。 又，有關本發明之液晶顯示裝置之光源爲冷陰極放電 管，該冷陰極放電管兩端之各電極係由圓錐狀或多角錐狀 之電極本體，及從該電極本體之頂點所突出之銷所成，與 電極電性連接之金屬插座爲固定在印刷電路基板上而覆蓋 電極本體之同時，具有銷插通的孔爲其特徵。 將冷陰極放電管兩端之各電極形成爲上述之形狀的結 果，可增加冷陰極放電管之電極面積，可長期間確實與金 屬件連結之同時可提高電極之耐久性。又，設在金屬插座 之孔內插通從電極本體之頂點突出的銷的結果，可容易實 行冷陰極放電管之定位。 本紙張尺度適川中囤國家標準（CNS ) Λ4規格（210X297公釐） 513587 A7 B7 五、發明説明（4 ) 〔實施發明之形態〕 茲依圖式詳細說明本發明如下，然而，本發明並非只 限定於該等實施形態例者。 第1圖係顯示本發明液晶顯示裝置之第1實施形態例 之槪略構成圖。本實施形態之液晶顯示裝置1 1係由：下 盒體1 2，液晶顯不板1 3，上盒體1 4所構成，將液闆 顯示板1 3用下盒體1 2及上盒體1 4挾住而收容，並用 螺絲2 0 ’ 2 0固定而構成液體顯示裝置1 1。下盒體 1 2之內部有收容導光板1 5，在上盒體1 4之中央部， 設有對應於所收容之液晶顯示板1 3之窗口 1 6，可從外 部看液晶顯示板1 3之顯示。 安裝在液晶顯不板1 3之長邊之一之片段電極側印刷 電刷電路基板1 7之下面設有冷陰極放電管（光源）1 8 ，液晶顯示板1 3之短邊之一安裝有共同電極側印刷電路 基板1 9。液晶顯示板1 3及片段電極側印刷電路基板 1 7及液晶顯示板1 3及共同電極側印刷電路基板1 9係 分別電性連接之。 ;Γ:513587 A7 B7 Part V. Description of the Invention ([Technical Field to which the Invention belongs] The present invention relates to a liquid crystal display device, and particularly to a liquid crystal display device with space-saving design. [Previous Technology] There is a method using a cold cathode discharge The tube is used as the light source for the back lighting of the liquid crystal display device. In the case of the liquid crystal display device, the cold cathode discharge tube is housed on the side or the bottom surface, and a light guide plate or a diffusion plate is arranged on the back of the liquid crystal display panel, thereby diffusing the cold The light of the cathode discharge tube can illuminate the overall structure of the liquid crystal display panel. In the past, in order to drive the cold cathode discharge tube, electrical wiring was connected to the electrodes at both ends of the cold cathode discharge tube, and the electrical wiring was arranged along the cold cathode. Wiring of the shape of the discharge tube. Figure 16 is a schematic diagram showing a part of a conventional liquid crystal display device. Electrical wirings 2 a, 2 b for driving the discharge tube are connected to both ends of the cold cathode discharge tube 1. A connector 3 is installed at the tip of the electrical wiring on both sides, and is connected to a power source for applying a voltage to the cold cathode discharge tube 1. The electrical wiring 2 a is placed along the cold cathode. The tube 1 is provided in a state parallel to the cold cathode discharge tube 1 and is accommodated in a groove portion 4 a formed in the lower case 4. The cold cathode discharge tube 1 driven by the electric pipes 2 a and 2 b is used for the back lighting portion 5 The cold cathode discharge tube 1 and the electrical wiring 2 a, 2 b are covered by a cover 6, and a liquid crystal display panel 7 with printed circuit substrates 8 and 8 is arranged on the upper part of the lower holding body 4 in order, And the upper box 9 and fixed by screws 10, 10. The printed circuit boards 8, 8 are formed with driving circuits for driving the liquid crystal display panel 7, and are installed to drive the liquid crystal display panel 7, respectively. China National Standard (CNS) Λ4 specification (210X297 mm) -4- (Read the precautions on the back before filling out this page} 513587 A7 One — —__ B7 _ V. Common electrode, fragment electrode of the description of the invention (2) LSI used for driving. [Problems to be Solved by the Invention] There are, for example, liquid crystal displays for vehicles, and there is a particularly demanding miniaturization of the liquid crystal display device. In the conventional liquid crystal display device, there are electrical wirings 2a along the cold cathode discharge tube. Relationship of the shape of 1 accommodated in the lower case 4 Need to house the electrical wiring 2a, 2b system 0 and 5 need to assemble the electrical wiring 2 industry. Therefore, the assembly operation efficiency. In view of the above, the present invention is designed to reduce the liquid crystal display while improving the efficiency of assembly operations [means to solve the problem] In order to reduce the drive circuit of the crystal display panel that houses the electrical wiring, the driver circuit for the light source is assembled and assembled. In other words, the middle-fire liquid crystal display panel 11 is provided for the liquid crystal display panel. 'if is electrically connected to the liquid crystal display panel μ The printed circuit board of the driving circuit for driving the liquid crystal display panel > This paper is suitable for the Chinese National Standard (CNS) Λ4 specification (21 × 297 mm) There is also a problem that the space of the box body is limited to a small size a, 2b. An object of the present invention is to provide a liquid crystal display device in which the space in the liquid crystal display device is reduced to make the box compact. As a result, the present inventors have focused on providing a liquid-wiped circuit board, and solved the above-mentioned problems with the printed circuit board. The characteristics of Mingzhi's liquid crystal display device are: a light source with light. At the same time, there is a light source fixed to form a road and a driving power source for the light source (read the precautions on the back before filling this page) -5- 513587 A7 B7-• -One --------- One --- *-1 " '" " couch ~ «, ^ -_--| M | 5. Description of the Invention (3) Storage LCD Boxes for display boards, light sources and printed circuit boards. (Please read the precautions on the back of this page and fill in this page.) As a result, the driver circuit for the light source is installed on the printed circuit board, which eliminates the need for conventional electrical wiring and reduces the space in the liquid crystal display device that houses the electrical wiring. Conventionally, electrical wiring is housed in a groove formed in a lower case. However, because the containment step is unnecessary, the number of processes can be reduced, and the efficiency of assembly operations can be improved. In the above-mentioned liquid crystal display device, in the driving circuit for a liquid crystal display panel on a printed circuit board, one of the light sources for supplying light to the liquid crystal display panel * is a wiring for applying potential to a square electrode, and a liquid crystal display panel The reference potential wiring of the driving circuit may be shared. As a result, the wiring pattern on the printed circuit board can be simplified by mounting the driving circuit for the light source, and a low-cost design can be realized. In addition, the light source of the liquid crystal display device of the present invention is a cold cathode discharge tube. Each electrode at both ends of the cold cathode discharge tube is formed by a conical or polygonal electrode body, and a pin protruding from the vertex of the electrode body. The metal socket electrically connected to the electrode is fixed on the printed circuit board to cover the electrode body, and has a feature of a pin insertion hole. Forming the electrodes at both ends of the cold cathode discharge tube into the above-mentioned shape can increase the electrode area of the cold cathode discharge tube, and it can be surely connected to the metal parts for a long period of time while improving the durability of the electrode. In addition, as a result of inserting a pin protruding from the vertex of the electrode body into the hole provided in the metal socket, the cold cathode discharge tube can be easily positioned. This paper is in accordance with the National Standard (CNS) of Chuanzhong Standard Λ4 (210X297 mm) 513587 A7 B7 V. Description of the Invention (4) [Forms of Implementing the Invention] The invention is described in detail below with reference to the drawings. However, the invention is not limited to It is limited to those embodiments. Fig. 1 is a schematic configuration diagram showing a first embodiment of the liquid crystal display device of the present invention. The liquid crystal display device 11 of this embodiment is composed of a lower case body 12, a liquid crystal display panel 1 3, and an upper case body 14. The liquid crystal display panel 13 is provided with the lower case body 12 and the upper case body. The liquid crystal display device 11 is constituted by being held by being held by 1 2 and fixed with screws 20 ′ 20. A light guide plate 15 is housed inside the lower case 12 and a window 16 corresponding to the liquid crystal display panel 13 is housed in the center of the upper case 14. The liquid crystal display panel 1 3 can be viewed from the outside Of display. A cold-cathode discharge tube (light source) 1 8 is provided below a segmented electrode side printed brush circuit substrate 17 mounted on one of the long sides of the liquid crystal display panel 13 and one of the short sides of the liquid crystal display panel 13 Common electrode side printed circuit board 19. The liquid crystal display panel 13 and the segment electrode side printed circuit board 17 and the liquid crystal display panel 13 and the common electrode side printed circuit board 19 are electrically connected to each other. ; Γ:
而 h Sf 消 f 竹 卬 V (讀先閱讀背面之注意事項再读寫本頁) 第2圖係顯示第1圖之液晶顯示板1 3，片段電極側 印刷電路基板1 7及共同電極側印刷電路基板1 9之放大 圖。 片段電極側印刷電路板1 7之上面設有：冷陰極放電 管用驅動電路（電源用驅動電路）之低壓側配線2 0 a， 冷陰極放電管用驅動電路之高壓側配線2 0 b，片段電極 驅動用L S I 2 1，2 1，……及片段電極驅動電路（液 本纸張尺度適州中國國家標準（C、NS ) Λ4規格（210X297公釐） 513587 A7 B7 部 屮 •火 >/ί Μ 印 f 五、發明説明（5 ) 晶顯示板用驅動電路）2 2 ，2 1，……與片段電極驅 片段電極驅動用L S I 2 1 之間，係由多數的片段電極 。又，在片段電極側印刷電 放電管1 8，該冷陰極放電 低壓側配線2 0 a，及高壓 2 0 a，高壓側配線2 0 b ，可從外部之電源施加電壓 共同電極側印刷電路基 驅動用L S I 2 4，2 4， 晶顯示板用驅動電路）2 5 電極驅動L S I 2 4，2 4 由多數個共同電極26，2 將該冷除極放電管1 8 板1 7上的手段爲，使用金 配合所使用之冷陰極放電管 第3圖係冷陰極放電管 示第3圖之電極所使用之金 第3圖所示之冷陰極放 錐狀之電極本體2 9 a，及 之銷2 9 b所構成。該冷陰 從圓錐狀之電極本體2 9 a 短銷2 9 b之長度之同時， ，片段電極驅動用L S I 2 1 動電路2 2係電性連接之。各 2 1 與液晶顯示板1 2 2 3 所電性連接 路基板1 7之下面設有冷陰極 管1 8兩端部之電極，連接有 側配線2 0 b。該低壓側配線 之另一端係連接於連接器2 7 的構成。 板1 9之上面，設有共同電極 ……及共同電極驅動電路（液 ，該等係電性連接之。各共同 及液晶顯 Θ.......電性 固定於片段電 屬插座固定。 之電極之形狀 之電極形狀之 屬插座形狀之 電管1 8 a之 從電極本體2 極放電管1 8 之先端突出的 可增加電極與 示板1 連接之 極側印 該時必 之金屬 圖，第 圖。 電極2 9 a先 a係因 關係， 金屬插 3之間， 〇 刷電路基 需要使用 插座。 4圖係顯 9係由圓 端所突出 銷2 9 b 具有可縮 座之接觸 (誚先閱讀背面之注意事項再填寫本頁} 一本紙张尺度述州中國國家標準（CNS ) Λ4規格（210X297公釐） -8 513587 A7 B7 五、發明説明（6 ) 面積的優點。又，冷陰極放電管1 8 a係具有銷2 9 b的 關係，具有對金屬插座安裝冷陰極放電管時不容易發生安 裝位置偏差之優點。 該冷陰極放電管1 8 a所適用之金屬插座3 0爲如第 4圖所示之覆蓋電極本體2 9 a的形狀，具有將冷陰極放 電管1 8 a安裝於金屬插座3 0之際插通銷2 9 b之孔 3 0 a。又，腳架部3 0 b係由板彈簧所成，用該彈性力 可支持冷陰極放電管1 8 a之構成。 第5圖係顯示將冷陰極放電管1 8 a安裝於金屬插座 3〇時之狀態之側面圖。將銷2 9 b插通於固定在片段電 極側印刷電路基板1 7上之金屬插座3 0之孔3 0 a內， 使金屬插座3 0之內壁面與電極本體2 9 a緊緊地接觸即 可將冷陰極放電管1 8 a安裝於金屬插座3 0。 也就是說，對固定在片段電極側印刷電路基板1 7上 ，有低壓側配線2 0 a，高壓側配線2 0 b連接之金屬插 座3 0，3 0安裝冷陰極放電管1 8 a即可支持冷陰極放 電管1 8 a，並可驅動之。 Η 、τ> ;r： 部 屮 火 ί/ί 卬 冷陰極放電管爲，除了上述之形狀以外，其電極爲導 線的形狀者。第6圖係顯示電極成爲導線的冷陰極放電管 形狀之圖，第7圖係顯示第6圖所示冷陰極放電管之電極 所使用之金屬插座之形狀之圖。 第6圖所示其電極成爲導線3 1的冷陰極放電管 1 8 b爲’要使用如％ 7圖所不之’其上部具有安裝導線 3 1用之開縫3 2 a之金屬插座3 2。 9- (謂先閱讀背面之注意事項再填寫本頁) 张尺度適州中國國家標準（CNS ) Λ4規格（210X297公釐） 513587 A7 B7 五、發明説明（7 ) 第8圖係顯示對金屬插座3 2安裝冷陰極放電管 1 8 b之狀態之側面圖。對固定在片段電極側印刷電路基 板1 7上之金屬插座3 2之開縫3 2 a嵌裝導線3 1的結 果，對金屬插座3 2可安裝冷陰極放電管1 8 b。 第9圖係顯示電極成爲導線之冷陰極放電管之形狀之 圖，第1 0圖係顯示第9圖之電極使用之其他形狀之金屬 插座之圖。 第9圖所示之，電極成爲導線3 1之冷陰極放電管 1 8 b爲，可使用第1 0圖所示之，將兩枚之金屬板 3 3 a ，3 3 b予以對向，用該等之彈性力來夾緊導線 3 1而固定方式之金屬插座3 3。 第1 1圖係顯示對金屬插座3 3安裝冷陰極放電管 1 8 b之狀態之側面圖。片段電極側印刷電路基板1 7上 所固定的金屬插座3 3之兩枚金屬板3 3 a，3 3 b之間 夾緊導線3 1即可安裝冷陰極放電管1 8 b於金屬插座 3 3° 冷陰極放電管爲，除了上述之形狀以外，有其電極呈 板狀的型式者◦第1 2圖係顯示電極呈板狀之冷陰極放電 管之狀態之圖，第1 3圖係顯示第1 2圖之電極所使用之 金屬插座之形狀之圖。 在第1 2圖所示之，具有板狀電極3 4之冷陰極放電 管1 8 c爲，使用如第1 3圖所示之，兩枚彎曲的金屬板 3 5 a ，3 5 b予以對向，用該等之彈性夾緊冷陰極放電 管1 8 c而固定，再有板彈簧3 5 c擋接於板狀電極3 4 10- (銷先閱讀背面之注意事項馮填寫本頁) 本紙張尺度適W中國國家標準（CNS ) Λ4規格（210X 297公釐） 513587 A7 B7 P- mumwm - mmmwm - - * - *—> — · 一 i.«r —i..- 一 ，〜_·*» 擊，—__丨 I I 1 1 'mil- 11 " "" 1 11 " 五、發明説明（8 ) 之方式之金屬插座3 5。 (讀先閱讀背面之注意事項再填寫本頁) 第1 4圖係顯示對金屬插座3 5安裝冷陰極放電管 1 8 c之狀態之側面圖。在片段電極側印刷電路基板1 7 上所固定之金屬插座3 5之兩枚金屬板3 5 a，3 5 b之 間夾緊冷陰極放電管1 8 c而固定，再者有板彈簧3 5 c 擋接於板狀電極3 4來安裝冷陰極放電板1 8 c於金屬插 座3 5。 如上述，本實施形態之液晶顯示裝置中，將冷陰極放 電管1 8安裝在片段電極側印刷電路板1 7之下面，在片 段電極側印刷電路基板1 7之上面設冷陰極放電管用驅動 電路之低壓側配線2 0 a，及高壓側配線2 0 b的結果， 不必使用以往之構造所使用之電配線，可減少液晶顯示裝 置1 1內之空間。又，可削減以往是需要的收容電配線之 作業，可提高裝配作業效率。 茲參考第1 5圖，就本發明之液晶顯示裝置之第2實 施形態說明如下。本實施形態之液晶顯示裝置之槪略構成 爲完全與第1之實施形態之液晶顯示裝置相同，因此省略 槪略構成圖。 第1 5圖係顯示本實施形態之液晶顯示裝置之印刷電 路基板之構成之圖。在第1 5圖中與第1實施形態例重複 的部分，即使用與第2圖同一之圖號而省略其說明。 在第1 5圖中，連接於冷陰極放電管1 8之冷陰極放 電管用驅動電路之低壓側（C 0 L D側）配線2 0 c爲’ 電性連接於片段電極驅動電路2 2內之G N D配線（基準 4了^¥尺度過州中國國家標準（（、NS ) Λ4規格（210X297公釐） _ 11 513587 A7 B7 五、發明说明（9 ) 電位配線）2 2 a。又，連接器2 8爲，只有冷陰極放電 管用驅動電路之高壓側配線2 0 b連接之。 如上述，本實施形態之液晶顯示裝置中，在片段電極 側印刷電路基板1 7之下面安裝冷陰極放電管1 8 ’在片 段電極側印刷電路基板1 7之上面設冷陰極放電管用驅動 電路之高壓側配線2 0 b，低壓側配線2 0 c的結果，可 消除以往之構造中所使用之電配線，可減少液晶顯示裝置 1 1內的空間，削減以往需要的收容電配線的作業而可提 高裝配作業效率。又，將低壓側配線2 0 c連接於片段電 極驅動電路2 2內之G N D配線2 2 a的結果可削減低壓 側配線2 0 c所需要的空間。 再者，從冷陰極放電管1 8所引出之配線爲一條即可 ，因此可實現低成本設計之同時，可單純化連接於外部電 源之連接器2 8。 又，本發明之技術範圍並非限定於上述之實施形態， 在不脫離本發明之主旨之範圍內可實行種種的變更。舉例 來說，在上述實施之形態中，將冷陰極放電管固定在片段 電極側印刷電路板上，但該冷陰極放電管係可固定在共同 電極側印刷電路板上。又，片段電極側印刷電路板，共同 電極側印刷電路基板爲，只要是具有固定冷陰極放電管用 之足夠強度的話，可撓性印刷電路基板也可以。 在上述實施形態中，使用金屬插座來固定冷陰極放電 管，然而使用連接器來取代該構成，或用錫焊等將冷陰極 放電管直接固定於印刷電路基板也可以。 -----‘--_—丨 (謂先閲讀背面之注意事項再填寫本頁And h Sf, f, fujitsu V (read the precautions on the back before reading and writing this page) Figure 2 shows the liquid crystal display panel 1 3 of the first figure, the printed circuit board 17 on the segment electrode side and the common electrode side printing An enlarged view of the circuit substrate 19. The segment electrode side printed circuit board 17 is provided on the low-voltage side wiring 20a of the cold cathode discharge tube drive circuit (power supply drive circuit), the high-voltage side wiring 2b of the cold cathode discharge tube drive circuit, and the segment electrode drive With LSI 2 1, 2 1, ... and segment electrode drive circuits (liquid paper size, suitable state Chinese standard (C, NS) Λ4 specification (210X297 mm) 513587 A7 B7 Ministry of Fire > / ί Μ印 f 5. Description of the invention (5) Driving circuit for crystal display panel) 2 2, 2 1, ... and the segment electrode driving segment electrode driving LSI 2 1 are composed of most segment electrodes. In addition, an electric discharge tube 18 is printed on the segment electrode side, the cold cathode discharge low-voltage side wiring 20a, and the high-voltage 20a and high-voltage side wiring 20b can be applied from an external power source. Driving LSI 2 4, 2 4 and driving circuit for crystal display panel) 2 5 electrode driving LSI 2 4, 2 4 A plurality of common electrodes 26, 2 The method for putting the cold depolarizing discharge tube 1 8 on the board 17 is The use of gold with the cold cathode discharge tube used in Figure 3 is a cold cathode discharge tube shown in Figure 3. The electrode used in Figure 3 shows the cold cathode taper-shaped electrode body 2 9 a, and the pin 2 9 b. The cold cathode is electrically connected from the conical electrode body 2 9 a to the length of the short pin 2 9 b, and the segment electrode driving circuit L 2 2 is electrically connected. Each 2 1 is electrically connected to the liquid crystal display panel 1 2 2 3. A cold cathode tube 18 is provided at the lower end of the circuit board 17, and electrodes at both ends of the cold cathode tube 18 are connected to the side wiring 2 0 b. The other end of the low-side wiring is connected to the connector 27. On the top of the board 19, there are common electrodes ... and common electrode driving circuits (liquid, these are electrically connected. Each common and liquid crystal display Θ.... Are electrically fixed to the fragment electrical socket. The shape of the electrode The shape of the electrode is a socket-shaped electric tube 1 8 a, which protrudes from the tip of the electrode body 2 electrode discharge tube 18, which can increase the electrode connected to the display plate 1 and print the necessary metal figure at the time. Figure 2. The electrode 2 9 a is first due to a relationship between the metal plug 3 and the socket for brushing the circuit base. 4 Figure 9 shows the pin 2 9 b protruding from the round end with a retractable contact (诮Read the notes on the back before filling in this page} A paper size states the Chinese National Standard (CNS) Λ4 specification (210X297 mm) -8 513587 A7 B7 V. Description of the invention (6) The advantages of area. Also, cold cathode The discharge tube 1 8 a has the relationship of the pin 2 9 b, and has the advantage that the installation position deviation is not easy to occur when the cold cathode discharge tube is installed on the metal socket. The metal socket 30 to which the cold cathode discharge tube 1 8 a is applied is as follows Cover electrode body shown in Fig. 2 9 a The shape has a hole 3 0 a for inserting the pin 2 9 b when the cold cathode discharge tube 1 8 a is mounted on the metal socket 30. The leg part 3 0 b is made of a plate spring, and the elastic force is used. Can support the structure of the cold cathode discharge tube 18 a. Figure 5 is a side view showing the state when the cold cathode discharge tube 18 a is installed in a metal socket 30. The pin 2 9 b is inserted into and fixed to the segment electrode. In the hole 3 0 a of the metal socket 30 on the side printed circuit board 17, the inner wall surface of the metal socket 30 and the electrode body 2 9 a can be tightly contacted to install the cold cathode discharge tube 1 8 a on the metal. Socket 3 0. In other words, the cold cathode discharge tube 1 is installed on the metal socket 30 connected to the low-voltage side wiring 2 a and the high-voltage side wiring 2 b to the printed circuit board 17 fixed on the segment electrode side. 8 a can support the cold cathode discharge tube 1 8 a and can drive it. Η, τ >; r: 屮 屮 火 ί / ί 卬 The cold cathode discharge tube is in addition to the shape described above, and its electrode is the shape of a wire. Figure 6 is a diagram showing the shape of a cold-cathode discharge tube with the electrodes becoming wires, and Figure 7 is a diagram showing the cold cathode discharge tube shown in Figure 6. The shape of the metal socket used for the electrode of the cathode discharge tube. The cold cathode discharge tube whose electrode becomes the lead 3 shown in Fig. 6 is shown in Fig. 6b. Metal socket 3 for wire 3 1 with slit 3 2 a. 9- (It is said that you should read the precautions on the back before filling in this page) Zhang scale Shizhou Chinese National Standard (CNS) Λ4 specification (210X297 mm) 513587 A7 B7 V. Description of the invention (7) FIG. 8 is a side view showing a state in which a cold cathode discharge tube 1 8 b is installed on the metal socket 3 2. As a result of inserting the lead 3 1 in the slot 3 2 a of the metal socket 3 2 fixed on the printed circuit board 17 of the segment electrode side, a cold cathode discharge tube 1 8 b can be installed in the metal socket 3 2. Fig. 9 is a diagram showing the shape of a cold cathode discharge tube in which an electrode becomes a lead wire, and Fig. 10 is a diagram showing another shape of a metal socket used for the electrode in Fig. 9. As shown in FIG. 9, the cold cathode discharge tube 1 8 b whose electrodes become the leads 31 can be used as shown in FIG. 10. Two metal plates 3 3 a and 3 3 b can be used to face each other. The elastic force is used to clamp the wire 31 and the metal socket 33 is fixed. FIG. 11 is a side view showing a state in which a cold cathode discharge tube 1 8 b is mounted on the metal socket 3 3. The metal socket 3 fixed on the segment electrode side printed circuit board 1 7 3 The two metal plates 3 3 3 3 a, 3 3 b clamp the wire 3 1 to install the cold cathode discharge tube 1 8 b on the metal socket 3 3 ° Cold cathode discharge tubes are those in which the electrodes are plate-shaped in addition to the shapes described above. Figure 12 shows the state of the cold cathode discharge tube with electrodes in a plate shape, and Figure 13 shows the Figure 12 shows the shape of the metal socket used for the electrodes. As shown in FIG. 12, the cold cathode discharge tube 1 8 c having plate-shaped electrodes 34 is formed by using two curved metal plates 3 5 a and 3 5 b as shown in FIG. 13. Direction, the cold cathode discharge tube 1 8 c is elastically clamped and fixed, and then a plate spring 3 5 c is connected to the plate electrode 3 4 10- (please read the precautions on the back first, fill in this page) Paper size suitable for China National Standard (CNS) Λ4 specification (210X 297 mm) 513587 A7 B7 P- mumwm-mmmwm--*-* — > — · i. «R —i ..- one, ~ _ · * »Click, —__ 丨 II 1 1 'mil- 11 " " " 1 11 " V. The metal socket 3 5 of the invention description (8). (Read the precautions on the back before you fill in this page.) Figures 1 and 4 are side views showing the state where the cold cathode discharge tube 1 8 c is installed on the metal socket 3 5. A cold cathode discharge tube 1 8 c is clamped between two metal plates 3 5 a, 3 5 b of the metal socket 3 5 fixed on the printed circuit board 17 of the segment electrode side, and a plate spring 3 5 c is connected to the plate-shaped electrode 3 4 to install the cold cathode discharge plate 1 8 c to the metal socket 3 5. As described above, in the liquid crystal display device of this embodiment, the cold cathode discharge tube 18 is mounted below the segment electrode-side printed circuit board 17 and the drive circuit for the cold cathode discharge tube is provided above the segment electrode-side printed circuit board 17. As a result of the low-voltage side wiring 20 a and the high-voltage side wiring 20 b, the electric wiring used in the conventional structure is not necessary, and the space in the liquid crystal display device 11 can be reduced. In addition, it is possible to reduce the work for accommodating electric wiring, which was conventionally required, and to improve the efficiency of assembly work. The second embodiment of the liquid crystal display device of the present invention is described below with reference to FIG. 15. The schematic configuration of the liquid crystal display device of this embodiment is completely the same as that of the liquid crystal display device of the first embodiment, and therefore, the schematic configuration diagram is omitted. Fig. 15 is a diagram showing the structure of a printed circuit board of the liquid crystal display device of this embodiment. In FIG. 15, the same portions as those in the first embodiment are overlapped with those in the first embodiment, and the same reference numerals as those in FIG. 2 are used, and the description is omitted. In FIG. 15, the low-voltage side (C 0 LD side) wiring 2 0 c of the cold-cathode discharge tube driving circuit connected to the cold-cathode discharge tube 18 is electrically connected to the GND in the segment electrode driving circuit 22 Wiring (Baseline 4 ^ ¥ scale passed state Chinese national standard ((, NS) Λ4 specification (210X297 mm) _ 11 513587 A7 B7 V. Description of the invention (9) Potential wiring) 2 2 a. Also, connector 2 8 Therefore, only the cold-cathode discharge tube is connected to the high-voltage side wiring 20b of the driving circuit. As described above, in the liquid crystal display device of this embodiment, the cold-cathode discharge tube 18 is mounted below the segment electrode-side printed circuit board 17 The high voltage side wiring 2 0 b and the low voltage side wiring 2 c of the driving circuit for the cold cathode discharge tube are provided on the segment electrode side printed circuit board 17, and the electric wiring used in the conventional structure can be eliminated, and the liquid crystal can be reduced. The space in the display device 11 can reduce the work required for accommodating electrical wiring and improve the efficiency of assembling work. The low-voltage side wiring 2 0 c is connected to the GND wiring 2 2 a in the segment electrode driving circuit 2 2. Reduce the space required for low-voltage wiring 20 c. Furthermore, only one wiring from the cold-cathode discharge tube 18 is required, so that a low-cost design can be achieved and the connector connected to an external power supply can be simplified. 2 8. In addition, the technical scope of the present invention is not limited to the above-mentioned embodiment, and various changes can be implemented without departing from the spirit of the present invention. For example, in the above-mentioned embodiment, a cold cathode discharge tube is used. It is fixed on the segment electrode side printed circuit board, but the cold cathode discharge tube system can be fixed on the common electrode side printed circuit board. In addition, the segment electrode side printed circuit board and the common electrode side printed circuit board are as long as they have a fixed cooling circuit. A flexible printed circuit board may be used if the cathode discharge tube has sufficient strength. In the above embodiment, the cold cathode discharge tube was fixed using a metal socket, but a connector was used instead of the structure, or the cold cathode was soldered by soldering or the like. The discharge tube can also be fixed directly to the printed circuit board. -----'--_— 丨 (It is necessary to read the precautions on the back before filling in this page
、1T 本紙張尺度適州中國國家標準（CNS ) Λ4規格（210X297公釐） -12- 513587 A7 B7 五、發明説明（1〇 部 屮、 1T This paper is in accordance with China State Standards (CNS) Λ4 specification (210X297 mm) -12- 513587 A7 B7 V. Description of the invention (Part 10)
I 消 Μ 卬 又，使用內部具有導電層之多層印刷電路基板，將該 導電層之一做爲G N D配線來使用也可以。 〔發明之效果〕 如上述，本發明之液晶顯示裝置之特徵爲，具備有： 液晶顯示板， 對該液晶顯示板供給光的光源， 與液晶顯示板電性連接之同時，有光源固定，形成有 驅動液晶顯示板用驅動電路及驅動光源用之光源用驅動電 路之印刷電路基板，及 收容液晶顯示板，光源及印刷電路基板用之盒體者； 將光源用驅動電路設在印刷電路基板上的結果，不需要以 往的電配線，可削減收容電配線用之液晶顯示裝置內之空 間。 以往，電配線是收容於形成在下盒體的溝部內。然而 因該收容步驟成爲不要的關係，可減少工數而可提高裝配 作業效率。 又，對液晶顯示板供給光之光源之一方之電極給予電 位用之配線，與液晶顯示板用驅動電路之基準電位配線成 爲共用時，因裝配有光源用驅動電路而變成複雜的印刷電 路基板上之配線圖案簡化，可實現低成本設計。 本發明之液晶顯示裝置之光源爲冷陰極放電管，該冷 險極放電管兩端之各電極係由圓錐狀或多角錐狀之電極本 體，及從該電極本體之頂點所突出之銷所成，與電極電性 (讀先閱讀背面之注意事項；填寫本頁j 本紙張尺度適州中國國家標率（CNS ) Λ4規格（210X297公釐） -13- 513587 A7 B7 、P m 部 十 而 卬 五、發明说明（11 連接之金屬插座爲固定在印刷電路基板上而覆蓋電極本體 之同時，具有銷插通用的孔爲其特徵，而將冷陰極放電管 兩端之各電極形成爲上述之形狀的結果，可增加冷陰極放 電管之電極面積，可長期間確實與金屬件連結之同時可提 高電極之耐久性。又，設在金屬插座之孔內插通從電極本 體之頂點突出的銷的結果，可容易實行冷陰極放電管之定 位。 〔圖式之簡單說明〕 第1圖係顯示本發明液晶顯示裝置之第1實施形態例 之槪略構成圖。 第2圖係顯示第1圖之液晶顯示板，片段電極側印刷 電路基板及共同電極側印刷電路基板之放大圖。 第3圖係顯示冷陰極放電管之電極形狀的圖。 第4圖係顯示第3圖之電極使用之金屬插座形狀之圖 0 第5圖係顯示對第4圖之金屬插座安裝第3圖之冷陰 極放電管之狀態之側面圖。 第6圖係顯示電極成爲導線之冷陰極放電管之形狀之 圖。 第7圖係顯示第6圖之電極使用之金屬插座之形狀之 圖。 第8圖係顯示對第7圖之金屬插座安裝第6圖之冷陰 極放電管之狀態之側面圖。 本紙張尺度適州中國國家標準（CNS ) Λ4規格（210X 297公釐） -14 - (讀先閱讀背面之注意事項再填寫本頁) 513587 A7 __ B7 ___ 五、發明説明（12 ) 第9圖係顯示電極成爲導線之冷陰極放電管之形狀之 圖。 第1 0圖係顯示第9圖之電極使用之其他形狀之金屬 插座之圖。 第1 1圖係顯示對第1 〇圖之金屬插座安裝第9圖之 冷陰極放電管之狀態之側面圖。 第1 2圖係顯示電極呈板狀之冷陰極放電管之狀態之 圖。 第1 3圖係顯示第1 2圖之電極使用之金屬插座之形 狀之圖。 第1 4圖係顯示對第1 3圖之金屬插座安裝第1 2圖 之冷陰極放電管之狀態之側面圖。 第1 5圖係顯示本發明之液晶顯示裝置之第2實施形 態例之圖。 第1 6圖係顯示以往之液晶顯示裝置之槪略構成圖。 〔圖號之說明〕 部 十 讀先閱讀背面之注意事項-S填寫本頁 ·It is also possible to use a multilayer printed circuit board having a conductive layer inside, and use one of the conductive layers as a G N D wiring. [Effects of the Invention] As described above, the liquid crystal display device of the present invention includes: a liquid crystal display panel; a light source for supplying light to the liquid crystal display panel; and the light source is electrically connected to the liquid crystal display panel while a light source is fixed and formed. A printed circuit board having a driving circuit for driving a liquid crystal display panel and a driving circuit for a light source for driving a light source, and a case for housing a liquid crystal display panel, a light source and a printed circuit substrate; a driving circuit for a light source is provided on the printed circuit board As a result, the conventional electric wiring is not required, and the space in the liquid crystal display device for housing the electric wiring can be reduced. Conventionally, electrical wiring is housed in a groove formed in a lower case. However, because the containment step is unnecessary, the number of processes can be reduced, and the efficiency of assembly operations can be improved. In addition, when wiring for applying potential to one of the electrodes of one of the light sources for supplying light to the liquid crystal display panel is shared with the reference potential wiring of the driving circuit for the liquid crystal display panel, it becomes a complicated printed circuit board due to the mounting of the driving circuit for the light source. The wiring pattern is simplified, enabling low-cost design. The light source of the liquid crystal display device of the present invention is a cold cathode discharge tube. Each electrode at both ends of the cold danger discharge tube is formed by a conical or polygonal electrode body and a pin protruding from the vertex of the electrode body. , And the electrical properties of the electrode (read the precautions on the back; fill in this page j This paper size is suitable for China National Standards (CNS) Λ4 specifications (210X297 mm) -13- 513587 A7 B7, P m part 10 V. Description of the invention (11 The metal socket connected is fixed on the printed circuit board to cover the electrode body, and has the feature of a common hole for pin insertion, and the electrodes at both ends of the cold cathode discharge tube are formed into the shape described above. As a result, the electrode area of the cold cathode discharge tube can be increased, and the electrode can be surely connected to the metal part for a long period of time, and the durability of the electrode can be improved. In addition, a pin protruding from the vertex of the electrode body is inserted into the hole of the metal socket. As a result, the positioning of the cold-cathode discharge tube can be easily performed. [Simplified description of the drawings] Fig. 1 is a schematic configuration diagram showing a first embodiment of the liquid crystal display device of the present invention. It is an enlarged view showing the liquid crystal display panel of FIG. 1, a segmented electrode-side printed circuit board, and a common electrode-side printed circuit board. FIG. 3 is a diagram showing the shape of an electrode of a cold cathode discharge tube. FIG. 4 is a diagram showing FIG. 3 Figure 5 of the shape of the metal socket used for the electrode. Figure 5 is a side view showing the state where the cold cathode discharge tube of Figure 3 is installed on the metal socket of Figure 4. Figure 6 is a cold cathode discharge tube showing the electrode as a lead. Fig. 7 is a diagram showing the shape of the metal socket used for the electrode of Fig. 6. Fig. 8 is a side view showing the state where the cold cathode discharge tube of Fig. 6 is installed on the metal socket of Fig. 7. The paper size is suitable for China National Standard (CNS) Λ4 specification (210X 297mm) -14-(Read the precautions on the back before filling this page) 513587 A7 __ B7 ___ V. Description of the invention (12) 9th The figure is a diagram showing the shape of a cold cathode discharge tube in which the electrode becomes a wire. Figure 10 is a diagram showing a metal socket of another shape used for the electrode in Figure 9. Figure 11 is a view showing the metal of Figure 10 Socket Installation Figure 9 Side view of the state of the cold cathode discharge tube. Figure 12 shows the state of the cold cathode discharge tube with electrodes in the shape of a plate. Figure 13 shows the shape of the metal socket used for the electrode of Figure 12 Fig. 14 is a side view showing a state where the cold cathode discharge tube of Fig. 12 is installed on the metal socket of Fig. 13 and Fig. 15 is a view showing a second embodiment of the liquid crystal display device of the present invention. Fig. 16 is a diagram showing a schematic structure of a conventional liquid crystal display device. [Explanation of the drawing number] Chapter 10 Read the notes on the back first-SFill this page ·
、1T 1 液 晶 顯 示 裝 置 2 下 盒 體 3 液 晶 顯 示 板 4 上 盒 體 7 片 段 電 極 側 印 刷 電 路 板 8 冷 陰 極 放 電 管 9 共 同 電 極 側 印 刷 電 路 基板 本紙张尺度適州中國國家標準（CNS ) A4規格（210X297公釐） -15- 513587 Α7 Β7 五、發明説明（13 ) 2 0 a (冷陰極放電管用驅動電路之）低壓側配線 2 0b (冷陰極放電管用驅動電路之）高壓側配線 2 0c (冷陰極放電管用驅動電路之）低壓側配線1T 1 Liquid crystal display device 2 Lower case 3 Liquid crystal display panel 4 Upper case 7 Segmented electrode side printed circuit board 8 Cold cathode discharge tube 9 Common electrode side printed circuit board This paper is in accordance with China National Standard (CNS) A4 specifications (210X297 mm) -15- 513587 Α7 B7 V. Description of the invention (13) 2 0 a (for cold cathode discharge tube drive circuit) low voltage side wiring 2 0b (for cold cathode discharge tube drive circuit) high voltage side wiring 2 0c ( Cold-cathode discharge tube driving circuit) low-voltage side wiring
2 1 片段電極驅動用L S I 22 片段電極驅動電路 2 2 a G N D 配 線 ( 基 準電位 2 3 片 段 電 極 2 4 共 同 電 極 驅 動 用 L S I 2 5 共 同 電 極 驅 動 電 路 2 6 共 同 電 極 2 7 連 接 器 2 8 連 接 器 2 9 電 極 2 9 a 電 極 本 體 2 9 b 銷 3 〇 金 屬 插 座 3 0 a 孔 if Ψ 而 .1 消 $ 合 卬 -16- (讀先閲讀背面之注意事項再填寫本頁) 本紙張尺度適州中國國家標準（（：奶）/\4規格（210/ 297公釐）2 1 LSI for segment electrode driving 22 Segment electrode drive circuit 2 2 a GND wiring (reference potential 2 3 segment electrode 2 4 LSI for common electrode drive 2 5 common electrode drive circuit 2 6 common electrode 2 7 connector 2 8 connector 2 9 electrode 2 9 a electrode body 2 9 b pin 3 〇 metal socket 3 0 a hole if Ψ and .1 eliminate $. $ -16- (read the precautions on the back before filling out this page) This paper is suitable for China China National standard ((: milk) / \ 4 specifications (210/297 mm)