TWI493319B - Electronic device - Google Patents
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- TWI493319B TWI493319B TW098141343A TW98141343A TWI493319B TW I493319 B TWI493319 B TW I493319B TW 098141343 A TW098141343 A TW 098141343A TW 98141343 A TW98141343 A TW 98141343A TW I493319 B TWI493319 B TW I493319B
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Description
本發明係有關於一種電子裝置,尤指一種可減少高頻雜訊干擾的電子裝置。The present invention relates to an electronic device, and more particularly to an electronic device capable of reducing high frequency noise interference.
在現代化的資訊社會,電腦系統已經成為多數人不可或缺的資訊工具之一,而不論是桌上型個人電腦、筆記型電腦或是伺服器等,皆朝著輕薄的趨勢來發展。近來消費者對於筆記型電腦的可攜帶性及多媒體影音畫質要求越來越高,因此「輕薄」、「省電」及「高解析度」已是筆記型電腦研發的趨勢。In the modern information society, computer systems have become an indispensable information tool for most people, and whether it is a desktop PC, a notebook computer or a server, it is moving toward a thin trend. Recently, consumers have become more and more demanding on the portability of notebook computers and multimedia audio and video quality. Therefore, "thin and light", "power saving" and "high resolution" are the trends in the development of notebook computers.
請參考第1圖,第1圖為習知技術中應用於筆記型電腦中之電子裝置100的示意圖。電子裝置100係為筆記型電腦的上蓋結構,其包含有一顯示面板110、一驅動電路120、一金屬框架130、一天線140以及一殼體150。驅動電路120係電連接於顯示面板110,用以依據顯示資料來驅動顯示面板110以顯示影像。天線140係用以傳送或接收無線訊號。殼體150本身具有一容置空間,其中顯示面板110、驅動電路120、金屬框架130以及天線140均設置於該容置空間中。Please refer to FIG. 1 , which is a schematic diagram of an electronic device 100 applied to a notebook computer in the prior art. The electronic device 100 is a cover structure of a notebook computer, and includes a display panel 110, a driving circuit 120, a metal frame 130, an antenna 140, and a housing 150. The driving circuit 120 is electrically connected to the display panel 110 for driving the display panel 110 according to the display data to display an image. The antenna 140 is used to transmit or receive wireless signals. The housing 150 itself has an accommodating space, and the display panel 110, the driving circuit 120, the metal frame 130, and the antenna 140 are disposed in the accommodating space.
請一併參考第1圖以及第2圖。第2圖為在不同頻段中第1圖中驅動電路120的輸出能量與耦合至天線140的輸入能量比值的曲線圖。橫軸代表頻率,而縱軸代表插入損耗(Insertion Loss)。如第2圖中所示,在通訊波段1GHz,天線140從驅動電路120所接收到的耦合能量強度比為-89.2dB。由於液晶顯示器面板大多採用金屬鐵框(亦即第1圖中之金屬框架130)作為外部固定裝置,故金屬框架130係直接覆蓋驅動電路120以及顯示面板110上的走線,且在高頻通訊波段上所傳遞的訊號波長小於金屬框架130所能屏蔽的尺寸。因此,驅動電路120或顯示面板110上走線所輻射的高頻雜訊能量,便會藉由金屬框架130所形成的等效波導結構而進行傳播,進而干擾到設置於金屬框架130上緣的天線140,因而導致通訊品質大幅下降。Please refer to Figure 1 and Figure 2 together. 2 is a graph of the output energy of the drive circuit 120 and the input energy ratio coupled to the antenna 140 in FIG. 1 in different frequency bands. The horizontal axis represents frequency and the vertical axis represents insertion loss (Insertion Loss). As shown in Fig. 2, at a communication band of 1 GHz, the coupling energy intensity ratio of the antenna 140 received from the drive circuit 120 is -89.2 dB. Since the liquid crystal display panel mostly uses a metal iron frame (that is, the metal frame 130 in FIG. 1) as an external fixing device, the metal frame 130 directly covers the driving circuit 120 and the wiring on the display panel 110, and is in high frequency communication. The wavelength of the signal transmitted on the band is smaller than the size that the metal frame 130 can shield. Therefore, the high-frequency noise energy radiated by the driving circuit 120 or the display panel 110 is propagated by the equivalent waveguide structure formed by the metal frame 130, thereby interfering with the upper edge of the metal frame 130. The antenna 140 thus causes a significant drop in communication quality.
因此,本發明的目的之一在於提供一種電子裝置,其可藉由金屬導體的適當設置而改變金屬框架的波導結構,以解決上述的問題。Accordingly, it is an object of the present invention to provide an electronic device which can change the waveguide structure of a metal frame by suitable arrangement of metal conductors to solve the above problems.
依據本發明之一實施例,其係提供一種電子裝置。該電子裝置包含有一顯示面板、一驅動電路、一金屬框架以及一金屬導體。該顯示面板具有彼此相對之一第一面與一第二面,其中該第一面與該第二面中其一係為該顯示面板之一顯示面。該驅動電路係電連接於該顯示面板,用以依據顯示資料來驅動該顯示面板以顯示影像。該金屬框架係設置於該顯示面板之邊緣區域以固定該顯示面板,其中該金屬框架另覆蓋該驅動電路,且具有一波導結構。以及該金屬導體係設置於對應該顯示面板之該第二面之一側,用以改變該金屬框架之該波導結構。According to an embodiment of the invention, an electronic device is provided. The electronic device includes a display panel, a driving circuit, a metal frame and a metal conductor. The display panel has a first surface and a second surface opposite to each other, wherein one of the first surface and the second surface is a display surface of the display panel. The driving circuit is electrically connected to the display panel for driving the display panel to display an image according to the display data. The metal frame is disposed on an edge region of the display panel to fix the display panel, wherein the metal frame further covers the driving circuit and has a waveguide structure. And the metal guiding system is disposed on one side of the second surface corresponding to the display panel for changing the waveguide structure of the metal frame.
在說明書及後續的申請專利範圍當中使用了某些詞彙來指稱特定的元件。所屬領域中具有通常知識者應可理解,硬體製造商可能會用不同的名詞來稱呼同一個元件。本說明書及後續的申請專利範圍並不以名稱的差異來作為區分元件的方式,而是以元件在功能上的差異來作為區分的準則。在通篇說明書及後續的請求項當中所提及的「包含」係為一開放式的用語,故應解釋成「包含但不限定於」。此外,「耦接」一詞在此係包含任何直接及間接的電氣連接手段,因此,若文中描述一第一裝置耦接於一第二裝置,則代表該第一裝置可直接電氣連接於該第二裝置,或者透過其他裝置或連接手段間接地電氣連接至該第二裝置。Certain terms are used throughout the description and following claims to refer to particular elements. Those of ordinary skill in the art should understand that a hardware manufacturer may refer to the same component by a different noun. The scope of this specification and the subsequent patent application do not use the difference of the names as the means for distinguishing the elements, but the difference in function of the elements as the criterion for distinguishing. The term "including" as used throughout the specification and subsequent claims is an open term and should be interpreted as "including but not limited to". In addition, the term "coupled" is used herein to include any direct and indirect electrical connection means. Therefore, if a first device is coupled to a second device, it means that the first device can be directly electrically connected to the device. The second device is indirectly electrically connected to the second device through other devices or connection means.
請參考第3圖,第3圖為本發明之一實施例中之電子裝置300的示意圖。電子裝置300包含有(但不限於)一顯示面板310、一驅動電路320、一金屬框架330、一天線340、一殼體350以及一金屬導體360。顯示面板310具有彼此相對之一第一面與一第二面,於本實施例中,該第一面為顯示面板310之顯示面。驅動電路320係電連接於顯示面板310,用以依據顯示資料來驅動顯示面板310以顯示影像。金屬框架330係設置於顯示面板310之邊緣區域以固定顯示面板310,其中金屬框架330另覆蓋驅動電路320,且具有一第一波導結構Ws1。天線340係用以傳送或接收無線訊號。金屬導體360係設置於對應於顯示面板310的第二面(非顯示面)的一側,用以改變金屬框架330原本的第一波導結構Ws1。Please refer to FIG. 3, which is a schematic diagram of an electronic device 300 according to an embodiment of the present invention. The electronic device 300 includes, but is not limited to, a display panel 310, a driving circuit 320, a metal frame 330, an antenna 340, a housing 350, and a metal conductor 360. The display panel 310 has a first surface and a second surface opposite to each other. In the embodiment, the first surface is a display surface of the display panel 310. The driving circuit 320 is electrically connected to the display panel 310 for driving the display panel 310 according to the display data to display an image. The metal frame 330 is disposed on an edge region of the display panel 310 to fix the display panel 310. The metal frame 330 further covers the driving circuit 320 and has a first waveguide structure Ws1. Antenna 340 is used to transmit or receive wireless signals. The metal conductor 360 is disposed on a side corresponding to the second surface (non-display surface) of the display panel 310 for changing the original first waveguide structure Ws1 of the metal frame 330.
為了更加清楚地顯示出電子裝置300中各個元件之間的位置關係,請參閱第4圖,其為第3圖所示之電子裝置300沿著切線4’-4”的剖面示意圖。殼體350具有一容置空間351,其中顯示面板310、驅動電路320、金屬框架330、天線340以及金屬導體360均設置於351容置空間中。顯示面板310的第一面A係為顯示面,而第二面B則並非是顯示面。請注意,第4圖中所示之各個元件之間的位置關係僅作為範例說明之用,並非用來作為本發明的限制。In order to more clearly show the positional relationship between the various components in the electronic device 300, please refer to FIG. 4, which is a cross-sectional view of the electronic device 300 shown in FIG. 3 along a tangent line 4'-4". The display panel 310, the driving circuit 320, the metal frame 330, the antenna 340, and the metal conductor 360 are all disposed in the accommodating space. The first surface A of the display panel 310 is a display surface. The two sides B are not the display surfaces. Note that the positional relationship between the respective elements shown in Fig. 4 is for illustrative purposes only and is not intended to be a limitation of the invention.
請一併參考第3圖以及第5圖。第5圖為在不同頻段中第3圖中驅動電路320的輸出能量與耦合至天線340的輸入能量比值的曲線圖。橫軸代表頻率,而縱軸代表插入損耗(Insertion Loss)。如第5圖中所示,在通訊波段1GHz,天線340從驅動電路320所接收到的耦合能量強度比為-102.1dB,這是由於金屬框架330於金屬導體360所在之平面上的投影會被金屬導體360分隔為兩個面積較小區域,金屬框架330的第一波導結構Ws1會被破壞而與金屬導體360形成一第二波導結構Ws2,因而降低了金屬框架330上雜訊能量傳遞的電磁特性,使得耦合至天線340的高頻雜訊能量大幅降低,而不會對通訊品質造成嚴重干擾。Please refer to Figure 3 and Figure 5 together. Figure 5 is a graph of the output energy of drive circuit 320 and the input energy ratio coupled to antenna 340 in Figure 3 of the different frequency bands. The horizontal axis represents frequency and the vertical axis represents insertion loss (Insertion Loss). As shown in FIG. 5, in the communication band 1 GHz, the coupling energy intensity ratio of the antenna 340 received from the driving circuit 320 is -102.1 dB, because the projection of the metal frame 330 on the plane of the metal conductor 360 is The metal conductor 360 is divided into two smaller areas, and the first waveguide structure Ws1 of the metal frame 330 is broken to form a second waveguide structure Ws2 with the metal conductor 360, thereby reducing the electromagnetic energy of the noise transmission on the metal frame 330. The characteristic is that the high frequency noise energy coupled to the antenna 340 is greatly reduced without causing serious interference to the communication quality.
請注意,在本發明之另一實施例中,顯示面板310可為一液晶顯示面板,但這並非本發明之限制,其它可用以顯示影像的顯示裝置亦均屬本發明之範疇。此外,天線340可為一無線廣域網路(Wireless Wide Area Network,WWAN)天線,但這並非本發明之限制,其它可應用於電子裝置的多頻天線亦屬本發明之範疇。Please note that in another embodiment of the present invention, the display panel 310 can be a liquid crystal display panel, but this is not a limitation of the present invention, and other display devices that can be used to display images are also within the scope of the present invention. In addition, the antenna 340 can be a wireless wide area network (WWAN) antenna, but this is not a limitation of the present invention, and other multi-frequency antennas applicable to electronic devices are also within the scope of the present invention.
再者,驅動電路320可由複數個串列調變式驅動器介面(Cascade Modulated Driver Interface,CMDI)源極驅動晶片所構成,在以發光二極體(Light-emitting diode,LED)為背光源的筆記型電腦上,串列調變式驅動器介面技術可以將液晶顯示器(Liquid Crystal Display,LCD)的電路板與發光二極體驅動板整合成一小片,放置於液晶顯示器面板的下緣,不需像以往要將液晶顯示器電路板彎折到面板的後方,以降低面板厚度。除此之外,串列調變式驅動器介面技術將原本由電路板及軟板傳輸的控制訊號與電源路徑改由在面板玻璃上傳輸,並將源極驅動晶片(Source Driver IC)改採用玻璃覆晶基板(Chip on Glass,COG)的架構,以串聯的方式傳遞源極驅動IC間的訊號,可有效縮小電路板及軟板的面積,進而節省電路板及軟板的成本,使得整個面板模組變得更輕更薄。請注意,這並非本發明之限制,其它可驅動影像顯示裝置的驅動晶片亦屬本發明之範疇。Furthermore, the driving circuit 320 can be composed of a plurality of Cascade Modulated Driver Interface (CMDI) source driving chips, and the backlight is backed by a light-emitting diode (LED). On a computer, the serial-modulated driver interface technology can integrate a liquid crystal display (LCD) circuit board and a light-emitting diode driver board into a small piece, and is placed on the lower edge of the liquid crystal display panel. Bend the LCD panel to the back of the panel to reduce the thickness of the panel. In addition, the serial modulation driver interface technology transfers the control signals and power paths originally transmitted by the circuit board and the soft board to the panel glass, and changes the source driver IC to the glass. The structure of the chip on glass (COG) transmits the signal between the source driver ICs in series, which can effectively reduce the area of the circuit board and the soft board, thereby saving the cost of the circuit board and the soft board, and making the entire panel The module becomes lighter and thinner. Please note that this is not a limitation of the present invention, and other driving chips that can drive the image display device are also within the scope of the present invention.
請參考第6圖,第6圖為本發明之另一實施例中之電子裝置600的示意圖。電子裝置600與電子裝置300的不同之處在於電子裝置600中金屬導體660為一十字型的結構。Please refer to FIG. 6. FIG. 6 is a schematic diagram of an electronic device 600 according to another embodiment of the present invention. The electronic device 600 is different from the electronic device 300 in that the metal conductor 660 in the electronic device 600 has a cross-shaped structure.
請注意,上述的實施例僅用來說明本發明之技術特徵,並非用來侷限本發明之範疇。在上述實施例中,金屬導體360為一”一字型”的結構,但這並非本發明之限制,任何能改變金屬框架330的波導結構以降低耦合至天線340雜訊強度的金屬導體結構,例如第6圖中金屬導體660為”十字型”的結構,其使得金屬框架630於金屬導體660所在之平面上的投影會被金屬導體660分隔為四個面積較小區域,此類變化均屬本發明之範疇。It should be noted that the above-described embodiments are merely illustrative of the technical features of the present invention and are not intended to limit the scope of the present invention. In the above embodiment, the metal conductor 360 has a "one-word" structure, but this is not a limitation of the present invention. Any metal conductor structure capable of changing the waveguide structure of the metal frame 330 to reduce the noise intensity coupled to the antenna 340, For example, in FIG. 6, the metal conductor 660 is a "cross-shaped" structure, such that the projection of the metal frame 630 on the plane of the metal conductor 660 is divided by the metal conductor 660 into four smaller areas, and such variations are The scope of the invention.
此外,在本發明之另一實施例中,金屬導體360亦可設置於對應顯示面板310之顯示面的一側,藉由選用透明(可透光)之金屬材質作為金屬導體360,在改變金屬框架330波導結構的同時,亦不會影響顯示面板310的影像顯示功能。In addition, in another embodiment of the present invention, the metal conductor 360 may also be disposed on a side corresponding to the display surface of the display panel 310, and the metal is changed by using a transparent (transparent) metal material as the metal conductor 360. The frame 330 waveguide structure does not affect the image display function of the display panel 310.
本發明所揭露之電子裝置可用以實現一筆記型電腦的上蓋結構,其中殼體350即為筆記型電腦的上蓋,然而,此僅為本發明所揭露之電子裝置的一種應用,然而採用本發明所揭露之應用金屬導體來改變金屬框架之波導結構的技術的裝置均屬本發明的範疇。The electronic device disclosed in the present invention can be used to implement the upper cover structure of a notebook computer, wherein the housing 350 is the upper cover of the notebook computer. However, this is only one application of the electronic device disclosed in the present invention, but the present invention is adopted. The disclosed apparatus for applying a metal conductor to change the waveguide structure of a metal frame is within the scope of the present invention.
綜上所述,本發明提供一種能減少雜訊干擾的電子裝置,藉由設置金屬導體360於電子裝置300中,以改變金屬框架330的波導結構來降低耦合至天線340的雜訊強度。除此之外,本發明亦可適用於任何會受到高頻雜訊干擾的電路或裝置。In summary, the present invention provides an electronic device capable of reducing noise interference. The metal conductor 360 is disposed in the electronic device 300 to change the waveguide structure of the metal frame 330 to reduce the noise intensity coupled to the antenna 340. In addition, the present invention is also applicable to any circuit or device that is subject to high frequency noise interference.
以上所述僅為本發明之較佳實施例,凡依本發明申請專利範圍所做之均等變化與修飾,皆應屬本發明之涵蓋範圍。The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.
100、300、600...電子裝置100, 300, 600. . . Electronic device
110、310、610...顯示面板110, 310, 610. . . Display panel
120、320、620‧‧‧驅動電路120, 320, 620‧‧‧ drive circuit
130、330、630‧‧‧金屬框架130, 330, 630‧‧ metal frames
140、340、640‧‧‧天線140, 340, 640‧‧‧ antenna
150、350、650‧‧‧殼體150, 350, 650 ‧ ‧ shell
351‧‧‧容置空間351‧‧‧ accommodating space
360、660‧‧‧金屬導體360, 660‧‧‧Metal conductor
第1圖為習知技術中應用於筆記型電腦中之電子裝置的示意圖。FIG. 1 is a schematic diagram of an electronic device applied to a notebook computer in the prior art.
第2圖為在不同頻段中第1圖中驅動電路的輸出能量與耦合至天線的輸入能量比值的曲線圖。Figure 2 is a graph of the output energy of the drive circuit and the input energy ratio coupled to the antenna in Figure 1 for different frequency bands.
第3圖為本發明之一實施例中之電子裝置的示意圖。Figure 3 is a schematic diagram of an electronic device in an embodiment of the present invention.
第4圖為第3圖所示之電子裝置沿著切線4’-4”的剖面示意圖。Fig. 4 is a schematic cross-sectional view of the electronic device shown in Fig. 3 taken along line 4'-4".
第5圖為在不同頻段中第3圖中驅動電路的輸出能量與耦合至天線的輸入能量比值的曲線圖。Figure 5 is a graph of the output energy of the drive circuit and the input energy ratio coupled to the antenna in Figure 3 of the different frequency bands.
第6圖為本發明之另一實施例中之電子裝置的示意圖。Figure 6 is a schematic diagram of an electronic device in another embodiment of the present invention.
300...電子裝置300. . . Electronic device
310...顯示面板310. . . Display panel
320...驅動電路320. . . Drive circuit
330...金屬框架330. . . metal frame
340...天線340. . . antenna
350...殼體350. . . case
360...金屬導體360. . . Metal conductor
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TWI415537B (en) * | 2011-10-06 | 2013-11-11 | Au Optronics Corp | Flat-panel display |
TWI503602B (en) * | 2013-05-29 | 2015-10-11 | Qisda Corp | Monitor |
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TWM272314U (en) * | 2005-02-05 | 2005-08-01 | E Ten Information Sys Co Ltd | Electronic device and metal partition for decreasing the interference of high frequency noise on receiver |
TWI244886B (en) * | 2004-08-06 | 2005-12-01 | E Ten Information Sys Co Ltd | Noise isolation device |
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TWI244886B (en) * | 2004-08-06 | 2005-12-01 | E Ten Information Sys Co Ltd | Noise isolation device |
TWM272314U (en) * | 2005-02-05 | 2005-08-01 | E Ten Information Sys Co Ltd | Electronic device and metal partition for decreasing the interference of high frequency noise on receiver |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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TWI722879B (en) * | 2020-04-22 | 2021-03-21 | 友達光電股份有限公司 | Display device |
Also Published As
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TW201120614A (en) | 2011-06-16 |
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