經濟部中央標芈局貝工消費合作社印掣 413752 A7 . B7_ 五、發明説明（l) 本發明係有關於一種具液晶顯示器之電腦系統，其可 以省去液晶顯示器中電源供應器使成本下降，並且不需因 各國安規差異而設計不同之電源供應器。 在液晶顯示器（LCD)之電腦系統中’液晶顯示器為滿 足内部回路工作的需要’必須提供5V及12v電源以執行 工作。這兩個電源通常是由内建的電源供應器或外接的電 源供應器所達成。不過，由於液晶顯示器尺寸大小、消耗 能量多募、各國安規差異、…等因素，這些電源供應器必 須要針對各國安規進行不同之設計及提供不同之電源線， 其所費人力、物力眾多，並且造成環保問題。 請參考第1圖，此為習知液晶顯示器之電腦系統架構 圖。其中’電腦系統主要由液晶顯示器1〇及電腦主機2〇 所構成。液晶顯示器10具有液晶顯示面板i 2、信號解調 器14、電源供應器16、及直流直流轉換器18(dc dc Converter^電腦主機20則具有主機板22、電腦周邊設備 24、及電源供應裝置26。 電腦主機20之電源供應裝置26連接交流電流Vac以 輸出電腦周邊設债24(如光碟機、軟硬碟、…)及主機板22 所需之電源（如5V、12V)，而主機板22則根據輸入/輸出 裝置（圖中未示）、電服周邊設傭24之輸入訊息進行運算處 理，並將欲顯示之晝面信號VSIGNAL送至液晶顯示器1〇。 隨即，液晶顯示器10之信號解調器14便將晝面信號 vSIGNAL解調，並傳至液晶顯示面板12輸出。又，為維持 液晶顯示器10内部回路之工作’液晶顯示器10必須提供 3 本紙張尺度適用中國國家^準（CNS > A4規格（210X297$^ ~— IL_______Q丨— (請先閱讀背面之注意事項再填寫本頁} 訂The Central Bureau of Standards, Ministry of Economic Affairs, Shellfish Consumer Cooperative Press 413752 A7. B7_ V. Description of the Invention (l) The present invention relates to a computer system with a liquid crystal display, which can eliminate the power supply in the liquid crystal display and reduce costs. And there is no need to design different power supplies due to differences in national safety regulations. In the liquid crystal display (LCD) computer system, the liquid crystal display must meet the needs of internal circuit operation and must provide 5V and 12v power to perform the work. These two power sources are usually achieved by a built-in power supply or an external power supply. However, due to factors such as the size of LCDs, increased energy consumption, differences in safety regulations in various countries, etc., these power supplies must be designed differently and provided with different power cords for safety regulations in various countries. Cause environmental issues. Please refer to Figure 1. This is a computer system architecture diagram of a conventional LCD monitor. Among them, the computer system is mainly composed of a liquid crystal display 10 and a computer host 20. The liquid crystal display 10 has a liquid crystal display panel i 2, a signal demodulator 14, a power supply 16, and a DC-DC converter 18 (the dc dc converter ^ the computer host 20 has a motherboard 22, a computer peripheral device 24, and a power supply device 26. The power supply device 26 of the host computer 20 is connected to the AC current Vac to output the peripheral devices 24 (such as optical drives, hard disks, hard disks, etc.) and the power required by the motherboard 22 (such as 5V, 12V). 22 performs calculation processing based on the input information of the input / output device (not shown in the figure) and the server 24, and sends the daytime signal VSIGNAL to be displayed to the liquid crystal display 10. Then, the signal of the liquid crystal display 10 The demodulator 14 demodulates the daytime signal vSIGNAL and transmits it to the liquid crystal display panel 12. Furthermore, in order to maintain the internal circuit operation of the liquid crystal display 10, the liquid crystal display 10 must provide 3 paper standards applicable to Chinese national standards (CNS) > A4 specifications (210X297 $ ^ ~ — IL_______Q 丨 — (Please read the precautions on the back before filling out this page) Order
41375S A7 B7 經濟部中央標率局貝工消費合作社印製 五、發明説明（2 ) —電源供應器16及一直流直流轉換器18(可内建或外接於 液晶顯示器10)以供應内部所需之直流電源3.3V、5V、 12V。 不過’由於5V、12V已在電腦主機20中產生，用以 供應主機板22及電腦周邊設備24電力。因此，重複在液 晶顯示器10中内建（或外接）電源供應器16便平白增加成 本、且為因應各國安規而必須進行之電源設計亦相當麻 煩。 有鑑於此，本發明的主要目的便是在電腦主機新增一 電路介面卡，使液晶顯示器中之電源供應器得以省略。 為讓本發明之上述和其他目的、特徵、和優點能更明 顯易懂’下文特舉一較佳實施例，並配合所附圖式，作詳 細說明如下： 圖式說明 第1圖係習知具液晶顯示器之電腦系統架構圖； 第2A圖係本發明具液晶顯示器之電腦系統架構圖（電 源介面卡非内建於主機板）；以及 第2B圖係本發明具液晶顯示器之電腦系統中電源介 面卡之電路方塊圖；以及 第3 A及3B圖係本發明具液晶顯示器之電腦系統架構 圖（電源介面卡内建於主機板）。 實施例 請參考第2A圖，此為本發明具液晶顯示器之電腦系 統架構圖。和習知電腦系統相仿，本電腦系統主要亦是由 (請先閱讀背面之注4^項再填寫本頁)41375S A7 B7 Printed by the Central Standards Bureau of the Ministry of Economic Affairs, Shellfish Consumer Cooperative, V. Description of the Invention (2)-Power supply 16 and DC-DC converter 18 (can be built-in or external to the LCD display 10) to supply internal needs DC power supply 3.3V, 5V, 12V. However, since 5V and 12V have been generated in the host computer 20, they are used to supply power to the motherboard 22 and computer peripherals 24. Therefore, repeating the built-in (or external) power supply 16 in the liquid crystal display 10 will increase the cost in vain, and the power supply design which must be performed in accordance with the safety regulations of various countries is also quite troublesome. In view of this, the main object of the present invention is to add a circuit interface card to the computer host, so that the power supply in the liquid crystal display can be omitted. In order to make the above and other objects, features, and advantages of the present invention more comprehensible, hereinafter, a preferred embodiment is given in detail, and in conjunction with the accompanying drawings, the detailed description is as follows: Schematic description Figure 1 is conventional Figure 2A is a computer system architecture diagram with a liquid crystal display; Figure 2A is a computer system architecture diagram with a liquid crystal display of the present invention (the power interface card is not built into the motherboard); and Figure 2B is a power supply in the computer system with a liquid crystal display of the present invention Circuit block diagram of the interface card; and Figures 3A and 3B are the computer system architecture diagrams of the present invention with a liquid crystal display (the power interface card is built into the motherboard). Example Please refer to FIG. 2A, which is a structural diagram of a computer system with a liquid crystal display according to the present invention. Similar to the conventional computer system, this computer system is also mainly composed of (please read Note 4 ^ on the back before filling this page)
413752 A7 B7 五、發明説明（3 ) 液晶顯示器30及電腦主機40所構成。液晶顯示器30具有 液晶顯示面板32、信號解調器34、及直流直流轉換器38。 電腦主機40則具有主機板42、電腦周邊設備44、電源供 應裝置46、及電源介面卡48。 電腦主機40之電源供應裝置46連接交流電流Vae以 輸出電腦周邊設備44(如光碟機、軟硬碟、…)及主機板42 所需之電源（如5V、12V)，而主機板42則根據輸入/輸出 裝置（圖中未示）、電腦周邊設備44之輸入訊息進行運算處 理，並將欲顯示之晝面信號V SIGNAL 送至液晶顯示器30。 在第2A圖中，電源供應裝置46在供應某電腦周邊設備（如 軟碟）前係先連接到電源介面卡48，然後再轉接至原電腦 周邊設備。而液晶顯示器30之信號解調器34隨即將晝面 信號VSIGNAL解調，並傳至液晶顯示面板32輸出。 經满部中央標準局員工消費合作社印紫 (請先閲讀背面之注意事項再填寫本頁) 在這個例子中，為維持液晶顯示器10内部回路工作所 需之直流電源3.3V、5V、12V係由電腦主機40所直流 提供。而電源介面卡48(先前已提及）在此則扮演橋樑的角 色。請參考第2B圖，此為本發明電源介面卡48之電路方 塊圖。電源介面卡主要係包括一轉接裝置48a及一限流裝 置48b。轉接裝置48a係用以將電源供應,器46之輸出轉接 至原電腦周邊設備（在第2A圖中為軟碟）。而限流裝置 48b，如熱敏電阻或保險絲，則用以限制對液晶顯示器30 之輸出電流，藉以滿足各國之安規（如在CSA規格下輸出 電流必須小於S安培）及減少電磁干擾。 又，上述電源介面卡48亦可内建於主機板42上，經 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 413752 A7 B7 五、發明説明（4 ) 由主機板42未定義之輸出信號線R1輸出或經由一轉接頭 C1輸出，如第3A及3B圖所示。 綜上所述，本發明可省去液晶顯示器之電源供應器以 降低成本，並且只要在電腦主機中搭配適當電路·(不論是經 由一介面卡或將其内建於電路板上）便可以達到各國安規 之要求。 雖然本發明已以一較佳實施例揭露如下，然其並非用 以限定本發明，任何熟習此技藝者，在不脫離本發明之精 神和範圍内，當可做些許之更動與潤飾，因此本發明之保 護範圍當視後附之申請專利範圍所界定者為準。 (請先閲讀背面之注意事項再填寫本頁) *訂 " 經漓部中央標準局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS ) Λ4規格（2ΚΓΧ297公釐）413752 A7 B7 V. Description of the Invention (3) The liquid crystal display 30 and the computer host 40 are composed. The liquid crystal display 30 includes a liquid crystal display panel 32, a signal demodulator 34, and a DC / DC converter 38. The computer host 40 includes a motherboard 42, a computer peripheral device 44, a power supply device 46, and a power interface card 48. The power supply device 46 of the computer host 40 is connected to the AC current Vae to output the computer peripherals 44 (such as optical disc drives, hard disks, hard disks, etc.) and the power required by the motherboard 42 (such as 5V, 12V). The motherboard 42 is based on The input information from the input / output device (not shown in the figure) and the computer peripheral device 44 performs calculation processing, and sends the daytime signal V SIGNAL to be displayed to the liquid crystal display 30. In FIG. 2A, the power supply device 46 is connected to the power interface card 48 before supplying a computer peripheral device (such as a floppy disk), and then transferred to the original computer peripheral device. The signal demodulator 34 of the liquid crystal display 30 then demodulates the daytime signal VSIGNAL and transmits it to the liquid crystal display panel 32 for output. It has been printed by the Consumer Cooperative of the Central Bureau of Standards (please read the precautions on the back before filling this page). In this example, the DC power supply 3.3V, 5V, 12V required to maintain the internal circuit of the LCD display 10 is provided by The host computer 40 provides DC. The power interface card 48 (mentioned earlier) plays the role of a bridge here. Please refer to FIG. 2B, which is a circuit block diagram of the power interface card 48 of the present invention. The power interface card mainly includes a switching device 48a and a current limiting device 48b. The switching device 48a is used to switch the power supply and the output of the device 46 to the original computer peripheral equipment (floppy disk in Figure 2A). The current limiting device 48b, such as a thermistor or a fuse, is used to limit the output current to the liquid crystal display 30, so as to meet the safety regulations of various countries (for example, the output current must be less than S amperes under the CSA specification) and reduce electromagnetic interference. In addition, the above power interface card 48 can also be built in the main board 42. According to this paper standard, the Chinese National Standard (CNS) A4 specification (210X297 mm) 413752 A7 B7 V. Description of the invention (4) Undefined by the main board 42 The output signal line R1 is output or is output through an adapter C1, as shown in FIGS. 3A and 3B. In summary, the present invention can eliminate the power supply of the liquid crystal display to reduce costs, and can be achieved by matching an appropriate circuit in the host computer (whether via an interface card or a built-in circuit board). National safety requirements. Although the present invention has been disclosed in the following with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some modifications and retouching without departing from the spirit and scope of the present invention. The scope of protection of the invention shall be determined by the scope of the attached patent application. (Please read the precautions on the back before filling this page) * Order " Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Standards This paper size applies to the Chinese National Standard (CNS) Λ4 specification (2ΚΓ × 297 mm)