200945307 九、發明說明： 【發明所屬之技術領域】 本發明是有關於-種影像顯示裝置及其省電控制方 法，特別是有關於-種根據影像顯示區域以關閉影像顯 示裝置之部分光源之技術領域。 【先前技術】 〇 〇 由於環保議題越來越受重視，因此如何讓電子裝置 ::節省電號是目前最受注意的技術領域。目前已應有 2技術係用以節省電腦的耗電量，但是在傳統的顯示 f置上幾乎沒有有效的省電魏，只験賴制者在不 】時手動關螢幕。但是若使用者離開時疏忽了關閉 螢幕，則螢幕會繼續顯示而消耗電量。200945307 IX. Description of the Invention: [Technical Field] The present invention relates to an image display device and a power saving control method thereof, and more particularly to a technique for turning off a part of a light source according to an image display area to turn off an image display device field. [Prior Art] 〇 〇 As environmental issues are gaining more and more attention, how to make electronic devices :: saving electricity is currently the most noticeable technical field. At present, there are 2 technical departments to save the power consumption of the computer, but there is almost no effective power saving in the traditional display f, and it is only because the system does not manually turn off the screen. However, if the user neglects to turn off the screen when they leave, the screen will continue to display and consume power.
At 1前與螢幕有關的自動判斷功能，僅螢幕保護功 二者於一段時間内都沒有操作電腦，則為了保 影像過久而造成老化，電腦會執 式，有些螢幕保護程式會讓螢幕的不同區 域輪流顯示影像，而其他區域顯示黑色。此外 =200_36753，其對於影像顯示裝置之主動區域= 不同的更新頻率，其中非主動區域之更新 革：於主動區域’藉此以降低影像顯示裝置 ，县然而’在上述習知技藝中，僅是減少顯示面板 像组仍然是在點亮的狀態，對於減少影 诼顯不裝置之耗電量十分有限。 在習知技藝中，如中華民國專利00400972或中華民 5 200945307 國專利00411700，其揭露於影像顯示裝置上增設一遮斷 感測器或一攝影機，用光處理方式或影像處理方式來判 斷影像顯示裝置前方是否有使用者，若.沒有使用者，則 影像顯示裝置自動關機，藉此以達到省電的功效。但是 此習知技藝須在影像顯示裝置上額外增加裝置，此舉亦 增加影像顯示裝置的成本。 此外，目前薄型式影像顯示裝置已經十分普遍，此 種薄型式影像顯示裝置所佔之體積較小且可掛在牆上， ¢) 因此在不使用時，影像顯示裝置亦被期望可提供裝飾功 能或顯示簡單資訊。 有鑑於習知技藝之各項問題，為了能夠兼顧解決 之，本發明人基於多年研究開發與諸多實務經驗，提出 一種影像顯示裝置及其省電控制方法，以作為改善上述 缺點之實現方式與依據。 【發明内容】 Q 有鑑於此，本發明之目的就是在提供一種影像顯示 裝置及其省電控制方法，以兼顧達到延長背光源之使用壽 命及節省顯示裝置耗電之功效。 根據本發明之目的，提出一種影像顯示裝置，其包含 一訊號輸入模組、一顯示模組、一發光模組及一控制模組。 訊號輸入模組用以接收一影像訊號，而顯示模組用以根據影 像訊號顯示一影像，而發光模組具有複數個光源，用以提供 顯示模組光線，而控制模組根據影像訊號之特性選擇性點亮 或關閉部分該些光源，以進入一省電模式。 6 200945307 其中，影像訊號之特性包令主動區域(active area)之寬 高比、或影像訊號於一預設時間内被偵測到無明顯變化之特 徵。 其中，控制模組係根據主動區域之寬高比決定至少一非 主動區域(active area)之位置，並關閉對應非主動區域之光 源。 此外，本發明更提出一種省電控制方法，用於具有複 數個光源之影像顯示裝置，此省電控制方法包含： 〇 i)於該影像顯示裝置接收一影像訊號；以及 ii)根據影像訊號之特性選擇性點亮或關閉部分該些光 源，以控制影像顯示裝置進入一省電模式。 其中’影像訊號之特性包含一主動區域(active area)之寬 局比、或影像訊號於一預設時間内被偵測到無明顯變化之特 徵。 其中’省電控制方法更包含根據主動區域之寬高比決定 至少一非主動區域(active area)之位置’並關閉對應非主動區 〇 域之光源。 【實施方式】 以下將參照相關圖示，說明依本發明之影像顯示裝 置及其省電控制方法之實施例，為使便於理解，下述實 施例t之相同元件係以相同之符號標示來說明。 請參閱第1圖，其係為本發明之影像顯示裝置之示 2圖。圖中，影像顯示裝置1包含一訊號輸入模組n、 一顯示模組12、一發光模組及一控制模組14。訊號輸入 7 200945307 模、，且11用以接收一影像訊號111，例如爽白 訊號’或是來自雷㈣W # 來自電腦之影像 入模組11可包含多㈣缺^ +號等等。而訊號輸 AV踹早·^ 多 號介面之接頭’例如VGA接頭、 AV鳊子或DVI接頭等等。 丧頌 發光模組用以提供顯示模組12 係提供一顯示區域並根據影像號u ，，不、、、且 示一 賜祕⑽⑴於顯示區域上顯 ^像’例如顯示模組12可為液晶面板模叙，A包含At the front of the screen, the automatic judgment function related to the screen, only the screen protection function has not operated the computer for a period of time, in order to protect the image from ageing and causing aging, the computer will hold the mode, and some screen protection programs will make the screen different. The area alternately displays images while the other areas display black. In addition, =200_36753, for the active area of the image display device = different update frequency, wherein the update of the inactive area: in the active area 'to thereby reduce the image display device, the county however' in the above-mentioned prior art, only Reducing the display panel image group is still in the state of being lit, and the power consumption for reducing the display device is very limited. In the prior art, such as the Republic of China Patent No. 00400972 or the Chinese Patent No. 200945307 Patent No. 00411700, it is disclosed that an occlusion sensor or a camera is added to the image display device, and the image display is determined by light processing or image processing. Whether there is a user in front of the device, if there is no user, the image display device is automatically turned off, thereby achieving power saving effect. However, this prior art technique requires an additional device on the image display device, which also increases the cost of the image display device. In addition, thin-type image display devices are currently very popular, and such thin-type image display devices occupy a small volume and can be hung on a wall, ¢). Therefore, when not in use, image display devices are also expected to provide decorative functions. Or display simple information. In view of the various problems of the prior art, in order to solve the problem, the inventor has proposed an image display device and a power saving control method based on years of research and development and many practical experiences, as an implementation method and basis for improving the above disadvantages. . SUMMARY OF THE INVENTION In view of the above, an object of the present invention is to provide an image display device and a power saving control method thereof, which can achieve the effects of extending the life of the backlight and saving power consumption of the display device. According to the purpose of the present invention, an image display device includes a signal input module, a display module, a light emitting module, and a control module. The signal input module is configured to receive an image signal, and the display module is configured to display an image according to the image signal, and the light emitting module has a plurality of light sources for providing display module light, and the control module is based on the characteristics of the image signal Selectively illuminating or turning off some of the light sources to enter a power saving mode. 6 200945307 The characteristic of the image signal is such that the aspect ratio of the active area or the image signal is detected without significant change in a predetermined time. The control module determines the position of at least one active area according to the aspect ratio of the active area, and turns off the light source corresponding to the inactive area. In addition, the present invention further provides a power saving control method for an image display device having a plurality of light sources, the power saving control method comprising: 〇i) receiving an image signal at the image display device; and ii) according to the image signal The characteristic selectively illuminates or turns off some of the light sources to control the image display device to enter a power saving mode. The characteristics of the image signal include the width ratio of an active area, or the image signal is detected to have no significant change in a predetermined time. The 'power saving control method further includes determining the position of at least one active area according to the aspect ratio of the active area and turning off the light source corresponding to the inactive area 〇 field. [Embodiment] Hereinafter, embodiments of an image display device and a power saving control method thereof according to the present invention will be described with reference to the accompanying drawings. For the sake of understanding, the same components of the following embodiment t are denoted by the same reference numerals. . Please refer to Fig. 1, which is a view of the image display device of the present invention. The image display device 1 includes a signal input module n, a display module 12, a light emitting module, and a control module 14. Signal input 7 200945307 Mode, and 11 is used to receive an image signal 111, such as a white signal 'or from a thunder (four) W # from a computer image into the module 11 can contain multiple (four) missing ^ + number and so on. And the signal transmission AV 踹 · ^ multi-interface interface connector 'such as VGA connector, AV tweezers or DVI connector and so on. The display module 12 provides a display area and displays a display area according to the image number u, no, and, and displays a secret (10) (1) on the display area. For example, the display module 12 can be a liquid crystal. Panel model, A contains
Ο 以矩陣排列方式形成一顯示區域，再根據影 像訊號111控制此些像素分別作相對應之變化，再配合 發光模組產生之光線，藉此讓觀看者可觀看到此些像素 所組合的影像。而發光模組具有複數個光源，每一光源 係對應顯示模組12之顯示區域之一部分。 管、LED模組之其-或兩者混合使用。在第U中為; 光模組包含8根燈管131〜138，其以橫狀排列分別對應顯 示區域由上到下的八個區域。 控制模組14用以根據影像訊號ln之特性選擇性點 壳或關閉光源。控制模組14可包含一控制器141及複數 個開關142’開關142可設置於變壓器之高壓侧端（如第1 圖所示）、或是低壓侧端（即變壓器上相對於高壓側端之另 一侧）、或是變壓器兩侧端、或是設置於光源接地端，皆 可達到控制光源啟閉之效果。控制器141控制開關142 之狀態來點亮或關閉燈管。在一實施例中，如第2圖所 示，影像顯示裝置1之顯示模組12之整個顯示區域之寬 高比為4 : 3時，若使用者將觀看之主動區域121之寬高 比設定為16 ·· 9，例如觀看DVD影片，則顯示區域之上 200945307 下兩側為非主動區域122,此在非主動區域122上不會顯 示影像，因此控制模組14便可控制位置在非主動區域122 之燈管131及138關閉，因此控制模組14便可控制燈管 131及138關閉，僅點亮燈管132〜137，直到使用者將觀 看之主動區域（active area)之寬高比設定為4 : 3，控制模 組14才將燈管131及138點亮。藉此，使用者在觀看主 動區域31内之影像時，可省下燈管131及138之耗電量， 在此實施例中，可讓發光模組節省了 25%的耗電量。 0 在另一實施例中，如第3圖所示，影像顯示裝置3 之發光模組包含縱向排列20根燈管而顯示模組12之整 個顯示區域之寬高比為16:9時，若使用者將觀看之主 動區域321 (active area)之寬高比設定為4 : 3，例如觀看 VCD或一般電視，則顯示區域之左右兩侧區域為非主動 區域322，此非主動區域322不會顯示影像，因此控制模 組14便可控制位置在非主動區域32内的燈管331-333 及燈管334-336關閉，僅點亮其他14根燈管，直到使用 q 者將觀看之主動區域321之寬高比設定為16 : 9，控制模 組14才將燈管331-333及燈管334-336點亮。藉此，使 用者在觀看主動區域321内之影像時，可省下6根燈管 之耗電量，在此實施例中，可讓發光模組節省了 30%的 耗電量。 其中，使用者可使用遙控器、影像顯示裝置上的按 鍵、或是操作電腦來主動設定顯示模組之主動區域之寬 高比設定，例如觀看DVD時可設定為寬螢幕模式，其主 動區域之寬高比為16: 9、觀看VCD或一般電視時可設 200945307 定為傳統螢幕模式，其主動區域之寬高比為4: 3,控制 模組14可接收此設定訊號再根據設定訊號來關閉相對應 的燈管，亦或控制模組14可主動偵測影像訊號U1裡主 動區域之寬高比，再根據所偵測到的寬高比來關閉相對 應的燈管，例如控制模組14可根據影像訊號nl之影像 解析度來判斷主動區域21之寬高比。此外，若影像顯示 裝置1係作為數位相框或廣告看板之用，而使用者將顯 示區域區分為複數個主動區域431及432來顯示圖片， 〇 如第4圖所示，則控制模組14可根據非主動區域433及 434之位置來關閉燈管，且若控制模組14可隨著非主動 區域的位置或大小改變而動態控制所有燈管之啟閉，以 達到省電之功效。 在另一實施例尹，當控制模組14偵測出輸入之影像 訊號111於一段時間内皆無明顯之變化，若影像訊號m 為來自電腦之影像訊號111 ’即表示使用者已經沒有在操 作電腦，若影像訊號111為電視訊號即表示目前無正 〇常電視訊號，因此控制模組14開始執行省電模式，控制 光源輪流點亮及關閉，僅讓顯示模組之顯示區域之部分 顯不衫像，例如將原本的影像縮小，僅顯示於顯示裝置 之上半部或下半部。或者，影像顯示裴置亦可顯示其他 資訊，如時間、曰期及預設圖片等等，如第5圖所示。 如此’影像顯示裝置在省電模式下亦可提供裝飾功能並 顯示基本資訊。 在第5圖中，此實施例細第丨圖所*之影像顯示 1作為舉例，當控制模組14開始執行省電機制則 200945307 控制模組14關閉燈管133〜138使非主動區域522變暗， 而僅點亮燈管131及132以照亮主動區域521，並於主動 區域521上顯示預設圖片591，與時間、日期和氣候資訊 592，藉此可|卩省6根燈管的耗電量。為了避免燈管使用 ，久而加速老化，控制模組14於一預設時間後便關閉燈 # 131及132而點亮燈管133〜135，並改變顯示資訊之主 動區域521之位置，如第5圖下方所繪示之影像顯示裝 置1。接著，於一預設時間後控制模組14再關閉燈管形成 Forming a display area in a matrix arrangement, and then controlling the pixels to change correspondingly according to the image signal 111, and then matching the light generated by the light-emitting module, so that the viewer can view the combined image of the pixels. . The illumination module has a plurality of light sources, each of which corresponds to a portion of the display area of the display module 12. The tube, the LED module, or a mixture of the two. In the Uth, the optical module includes eight lamps 131 to 138 which are arranged in a horizontal shape corresponding to eight regions from the top to the bottom of the display region. The control module 14 is configured to selectively close or close the light source according to the characteristics of the image signal ln. The control module 14 can include a controller 141 and a plurality of switches 142. The switch 142 can be disposed on the high voltage side of the transformer (as shown in FIG. 1) or on the low side (ie, on the transformer relative to the high side). The other side), or both sides of the transformer, or the grounding end of the light source, can achieve the effect of controlling the light source to open and close. The controller 141 controls the state of the switch 142 to turn the lamp on or off. In an embodiment, as shown in FIG. 2, when the aspect ratio of the entire display area of the display module 12 of the image display device 1 is 4:3, if the user sets the aspect ratio of the active area 121 to be viewed. For example, if a DVD movie is viewed, the lower side of the display area 200945307 is an inactive area 122, and the image is not displayed on the inactive area 122, so the control module 14 can control the position to be inactive. The lamps 131 and 138 of the area 122 are closed, so that the control module 14 can control the lamps 131 and 138 to be closed, and only the lamps 132 to 137 are illuminated until the aspect ratio of the active area that the user will view. When set to 4:3, the control module 14 lights the lamps 131 and 138. Therefore, when the user views the image in the active area 31, the power consumption of the lamps 131 and 138 can be saved. In this embodiment, the light-emitting module can save 25% of the power consumption. In another embodiment, as shown in FIG. 3, the light-emitting module of the image display device 3 includes 20 lamps arranged longitudinally and the aspect ratio of the entire display area of the display module 12 is 16:9. The user sets the aspect ratio of the active area 321 (active area) to 4:3. For example, when viewing a VCD or a general television, the left and right sides of the display area are the inactive area 322, and the inactive area 322 does not. The image is displayed, so the control module 14 can control the lamps 331-333 and the lamps 334-336 in the inactive area 32 to be turned off, and only the other 14 tubes are illuminated until the active area to be viewed by using q. The aspect ratio of 321 is set to 16: 9, and the control module 14 lights the lamps 331-333 and the lamps 334-336. Therefore, when the user views the image in the active area 321, the power consumption of the six lamps can be saved. In this embodiment, the light-emitting module can save 30% of the power consumption. The user can use the remote controller, the button on the image display device, or operate the computer to actively set the aspect ratio of the active area of the display module. For example, when viewing a DVD, the screen can be set to a wide screen mode, and the active area is The aspect ratio is 16:9. When viewing VCD or general TV, 200945307 can be set to the traditional screen mode. The active area has an aspect ratio of 4:3. The control module 14 can receive the setting signal and then turn off according to the setting signal. The corresponding lamp tube or the control module 14 can actively detect the aspect ratio of the active area in the image signal U1, and then close the corresponding lamp according to the detected aspect ratio, for example, the control module 14 The aspect ratio of the active area 21 can be determined according to the image resolution of the image signal nl. In addition, if the image display device 1 is used as a digital photo frame or an advertising billboard, and the user divides the display area into a plurality of active areas 431 and 432 to display a picture, as shown in FIG. 4, the control module 14 can The lamp is turned off according to the positions of the inactive areas 433 and 434, and if the control module 14 can dynamically control the opening and closing of all the lamps as the position or size of the inactive area changes, the power saving effect can be achieved. In another embodiment, when the control module 14 detects that the input image signal 111 has not changed significantly for a period of time, if the image signal m is an image signal 111 from the computer, it means that the user is not operating the computer. If the video signal 111 is a television signal, it means that there is no normal TV signal at present, so the control module 14 starts to execute the power saving mode, and the control light source is turned on and off in turn, and only part of the display area of the display module is displayed. For example, the original image is reduced and displayed only on the upper or lower half of the display device. Alternatively, the image display device can display other information such as time, date, and preset pictures, as shown in Figure 5. Thus, the image display device can also provide a decorative function and display basic information in the power saving mode. In FIG. 5, the image display 1 of this embodiment is shown as an example. When the control module 14 starts to perform the power saving mechanism, the control module 14 turns off the lamps 133 to 138 to change the inactive area 522. Dark, only the lamps 131 and 132 are illuminated to illuminate the active area 521, and a preset picture 591 is displayed on the active area 521, with time, date and climate information 592, thereby saving 6 lamps. power consumption. In order to avoid the use of the lamp tube and accelerate the aging for a long time, the control module 14 turns off the lamps #131 and 132 after a predetermined time to illuminate the lamps 133 to 135, and changes the position of the active area 521 for displaying information, such as 5 is an image display device 1 shown below. Then, after a preset time, the control module 14 turns off the light tube again.
133〜135並點亮燈管136〜138，並改變顯示資訊之主動區 j 521之位置。如此輪流關閉及點亮光源，可兼顧顯示 資訊及降低耗電量，並進一步可延長光源之使用壽命。 而控制模組14亦可包含一儲存單元來儲存此些資訊592 及圖片591。 此實施例與習知的顯示裝置相比，此實施例之顯示 裝置係主動偵測是否應啟動省電機制，且不是由電腦來 控制，亦不需再增設遮斷感測器或攝影機來判斷使用者 是否尚在操作電腦。 此外，上述實施例係以燈管為光源作為舉例，然， 發光模組係可包含燈管及LED模組。請參㈣6圖、，、其 係為本發明之f彡像赫裝置之使錢合式錢之實施例 7意圖。圖卜影⑽示裝置6與上述實施例不同之 處在於，發光模組係包含複數個燈管631〜634及至少一 D模組68。當影像顯不裝置6顯示影像時，控制模組 =亮燈管631〜634而_咖模組68。#影像顯示裝 置6開始進人省電模式時’例如_卵像於一段時間 11 200945307 内皆無明顯之變化、或是使用者按壓—預設按鍵、 接收到電腦傳來的省電觸發訊號等等，便關閉燈， 631〜634而點亮LED模組68，並於對應lEd模組^管 顯示區域上顯示時間、日期及預設圖片，如第5圖之 於上方的影像顯不裝置。由於LED模組68的耗電量較衿133~135 and illuminate the lamps 136~138, and change the position of the active area j 521 of the display information. By turning off and lighting the light source in turn, the display information and power consumption can be reduced, and the service life of the light source can be further extended. The control module 14 can also include a storage unit for storing the information 592 and the picture 591. Compared with the conventional display device, the display device of this embodiment actively detects whether the power saving mechanism should be activated, and is not controlled by a computer, and does not need to add an occlusion sensor or a camera to judge. Whether the user is still operating the computer. In addition, the above embodiment uses a light tube as a light source as an example. However, the light emitting module may include a light tube and an LED module. Please refer to (4) Figure 6, which is the intention of the embodiment of the present invention. The Figure 4 (10) display device 6 differs from the above embodiment in that the light module comprises a plurality of lamps 631 to 634 and at least one D module 68. When the image display device 6 displays an image, the control module = lights 631 to 634 and _ coffee module 68. #Image display device 6 starts to enter the power saving mode. For example, the egg image has no obvious change in a period of time 11 200945307, or the user presses the preset button, receives the power-saving trigger signal from the computer, etc. Then, the lamp is turned off, 631~634, and the LED module 68 is lit, and the time, date and preset picture are displayed on the display area of the corresponding lEd module, as shown in Fig. 5, the image display device above. Since the power consumption of the LED module 68 is relatively low
管為低’所以僅使用LED模組68來顯示日期資訊可: 省電的功效。 U 當影像顯示裝置1為一電視機，影像訊號lu則 〇 來自電視機上盒之電視訊號，若可預先知道使用者不會 觀看影像訊號111的時段，便可在此時段中關閉部分光 源讓晝，變暗，達到省電的功效❶例如，若影像訊號 中具有節目表’例如數位電視訊號之TELTEXT，其係紀 錄節目時段及廣告時段，則控制模組14可於廣告時段關 閉部分光源讓畫面變暗，在節目時段再將全部光源開起 恢復原本的亮度。藉此，以減少發光模組53的耗電量。 此外’在上述實施例中’除了關閉部分光源之外， ❹亦可再降低其他點亮光源之驅動電流，藉此以進一步降 低影像顯示裝置1之亮度及耗電量。而且透過使用關閉 部分光源與降低驅動電流之手段，可增加影像顯示裝置t 之亮度調整解析度。舉例而言，在習知技藝中，影像顯 示裝置係僅調整驅動電流來改變亮度，若驅動電流之變 化量有100%、80%、60%、40%及20%等5種，表示影像顯 不裝置可顯示5種亮度；若再結合本發明所提供之關閉 部分光源之手段’當本發明之影像顯示裝置具有1〇根燈 管’則本發明之影像顯示裝置可顯示50種亮度，其亮度 12 200945307 調整解析度較習知技藝為高。 請參閱第7圖，其繪示本發明之省電控制方法之實 施例之示意圖。圖中’此方法係是應用於具有複數光源 之影像顯示裝置，而光源可為燈管、LED模組之其一或 兩者混合使用。在步驟71 ’於影像顯示裝置上接收影像 訊號’接著在步驟72,判斷在影像訊號中主動區域之寬 高比’並決定非主動區域之位置及大小。例如，若影像 顯示裝置之整個顯示區域之寬高比為4:3，而使用者將 〇 觀看之主動區域之寬高比設定為16 : 9時，則非主動區 域系位於主動區域之上下兩侧。若影像顯示裝置之整個 顯示區域之寬高比為16: 9,而使用者將觀看之主動區域 之寬尚比設定為4: 3時，則非主動區域系位於主動區域 之左右兩側。接著在步驟73，選擇出對應非主動區域之 光源，例如在第2圖中，對應非主動區域之光源為燈管 131及138 ’而在第3圖中’對應非主動區域之光源為燈 管331-333及燈管334-336。最後，步驟74係關閉所選 ❹之光源’則此景}像顯示裝置可節省被關閉光源之號電 量，又不會影響使用者觀看時的感受。 請參閱第8圖，其繪示本發明之省電控制方法之另 一實施例之示意圖。圖中，此方法係是應用於具有複數 光源之影像顯示裝置’而光源可為燈管、LED模組之其 一或兩者混合使用。在步驟81，提供一省電顯示資料， 其可包含日期資料、氣候資料、時間資料及圖片，如第5 圖所示之圖片591及資訊592。在步驟82，於影像顯示 裝置上接收影像sil號’接著在步驟8 3，判斷影像訊號是 13 200945307 否於一段時間内無明顯之變 目前使用者並 右無明顯之變化’表示 關門邱八丄有看像顯示裝置，則在步驟84中 關閉h光源以進人省電模式 顯示區域顯示預設資訊。最後，在步先= 時段便改變點;⑽-驟義一預設 圖所干益1二不預設資訊之區域’如第5 =;裝閉光源及點亮光源，可有效降低影 像顯不裝置之耗電量，並且延長切、之使用壽命。 Ο Ο ΤΡΓ^卜*上述複數光源係包含複數個燈管及至少一 LED模組，則在步驟φ 電詈鲂4二 ▲入省電模式時，係關閉耗 <次同、二S，而點壳耗電量較低的LED模組，而預 -貝訊係顯示於L E D模組所對應之顯示區域。 所述因依本發明之影像顯示裝置及其省電 法’具有以下優點·· 性二此二像_置及其方法可根據顯示影像之特 光源’可在不影響使用者觀看品質的前提下 達到省電之功效。 ⑵此影像顯不裝置可主動進行省電機制，不需由電 驅動或控制’可讓影像顯示裝置更有效地節省耗電 重〇 (3)此影像顯示裝置在省電模式下可提供裝飾功能 及顯示基本資訊’可提高影像顯示裝置之附加價值。 以上所述僅為舉例性，而非為限制性者 。任何未脫 =本發明之精神與範4，而對其進行之等效修改或變 ，均應包含於後附之申請專利範圍中。 200945307 【圖式簡單說明】 第1圖係為本發明之影像顯示裝置之一實施例之示 意圖； 第2圖係為本發明之影像顯示裝置之一實施例之應 用不意圖， 第3圖係為本發明之影像顯示裝置之另一實施例之 不意圖， ' 第4圖係為本發明之影像顯示裝置之再一實施例之 0 應用示意圖； 第5圖係為本發明之影像顯示裝置之再一實施例之 應用不意圖， 第6圖係為本發明之影像顯示裝置之再一實施例之 應用不意圖， 第7圖係為本發明之省電控制方法之一實施例之步 驟流程圖；以及 第8圖係為本發明之省電控制方法之另一實施例之 Q 步驟流程圖。 15 200945307 【主要元件符號說明】 1、3、6 :影像顯示裝置； 11 :訊號輸入模組； 111 :影像訊號； 12 :顯示模組； 121、 321、431、432、521 :主動區域； 122、 322、433、434、522 :非主動區域； 131 〜138、331 〜336、631 〜634 :燈管； 0 14 :控制模組； 141 :控制器； 142 :開關； 591 :預設圖片； 592 :預設資訊； 68 ： LED模組；以及 71〜74、81〜85 :步驟流程。The tube is low' so only use the LED module 68 to display the date information: Power saving effect. U When the image display device 1 is a TV, the image signal lu is the TV signal from the box on the TV. If the time period in which the user does not watch the image signal 111 can be known in advance, some of the light sources can be turned off during this period.昼, darken, to achieve power saving effect. For example, if the video signal has a program list, such as TELTEXT of a digital television signal, which is a recording program time period and an advertising time period, the control module 14 can turn off part of the light source during the advertising period. The picture becomes darker, and all the light sources are turned on during the program period to restore the original brightness. Thereby, the power consumption of the light-emitting module 53 is reduced. Further, in the above embodiment, in addition to turning off part of the light source, the driving current of the other lighting source can be further reduced, thereby further reducing the brightness and power consumption of the image display device 1. Moreover, the brightness adjustment resolution of the image display device t can be increased by using a method of turning off part of the light source and reducing the driving current. For example, in the prior art, the image display device only adjusts the driving current to change the brightness. If the amount of change in the driving current is 100%, 80%, 60%, 40%, and 20%, it means that the image is displayed. 5 devices can be displayed without the device; if the image display device of the present invention has 1 lamp tube, the image display device of the present invention can display 50 kinds of brightness, Brightness 12 200945307 Adjusting the resolution is higher than the conventional technique. Referring to Figure 7, there is shown a schematic diagram of an embodiment of the power saving control method of the present invention. In the figure, the method is applied to an image display device having a plurality of light sources, and the light source may be used in combination of one or both of a lamp tube and an LED module. At step 71', the image signal is received on the image display device. Then in step 72, the aspect ratio of the active region in the image signal is determined and the position and size of the inactive region are determined. For example, if the aspect ratio of the entire display area of the image display device is 4:3, and the user sets the aspect ratio of the active area to be viewed as 16:9, the inactive area is located above the active area. side. If the aspect ratio of the entire display area of the image display device is 16:9 and the width ratio of the active area to be viewed by the user is set to 4:3, the inactive area is located on the left and right sides of the active area. Next, in step 73, a light source corresponding to the inactive area is selected. For example, in FIG. 2, the light source corresponding to the inactive area is the light tubes 131 and 138', and in the third figure, the light source corresponding to the inactive area is the light tube. 331-333 and lamps 334-336. Finally, step 74 is to turn off the selected light source. The image display device can save the power of the turned off light source without affecting the user's perception when viewing. Referring to Figure 8, there is shown a schematic diagram of another embodiment of the power saving control method of the present invention. In the figure, the method is applied to an image display device having a plurality of light sources, and the light source can be used in combination of one or both of a lamp tube and an LED module. In step 81, a power-saving display data is provided, which may include date data, climate data, time data, and pictures, such as picture 591 and information 592 shown in FIG. In step 82, the image sil is received on the image display device. Then, in step 83, it is determined whether the image signal is 13 200945307. There is no obvious change in the current user and there is no obvious change in the right. If there is a viewing display device, the h light source is turned off in step 84 to display the preset information in the power saving mode display area. Finally, in the step first = time period will change the point; (10) - sudden meaning of a preset map of the benefits of the first two areas of non-preset information 'such as the fifth =; installed light source and light source, can effectively reduce the image display device The power consumption is extended, and the service life is extended. Ο Ο ΤΡΓ^卜* The above plurality of light sources comprise a plurality of lamps and at least one LED module, and in the step φ 詈鲂 4 2 ▲ into the power saving mode, the consumption is reduced <second and second S, The LED module with lower power consumption of the case is displayed, and the pre-Bei system is displayed in the display area corresponding to the LED module. The image display device according to the present invention and the power saving method thereof have the following advantages: the second image and the method can be based on the special light source of the displayed image, without affecting the user's viewing quality. To achieve the power saving effect. (2) This image display device can actively carry out the power saving mechanism without electric drive or control, which can make the image display device more efficient in saving power consumption. (3) This image display device can provide decorative functions in the power saving mode. And display basic information 'can increase the added value of the image display device. The above description is only illustrative and not limiting. Any changes or modifications to the spirit and scope of the present invention are intended to be included in the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing an embodiment of an image display device of the present invention; FIG. 2 is a schematic view showing an application of an embodiment of the image display device of the present invention, and FIG. Another embodiment of the image display device of the present invention is not intended to be used, and FIG. 4 is a schematic diagram of the application of the image display device of the present invention. FIG. 5 is a view of the image display device of the present invention. The application of the embodiment is not intended to be used. FIG. 6 is a schematic diagram of the application of the image display device of the present invention. FIG. 7 is a flow chart of the steps of an embodiment of the power saving control method of the present invention; And Fig. 8 is a flow chart of the Q step of another embodiment of the power saving control method of the present invention. 15 200945307 [Description of main component symbols] 1, 3, 6: image display device; 11: signal input module; 111: image signal; 12: display module; 121, 321, 431, 432, 521: active area; , 322, 433, 434, 522: inactive area; 131~138, 331~336, 631~634: lamp; 0 14: control module; 141: controller; 142: switch; 591: preset picture; 592: preset information; 68: LED module; and 71~74, 81~85: step flow.
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