1321312 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種顯示裝置及其控制方法，尤其係關於一種 可自動調整顯示輝度之顯示裝置及其控制方法。 【先前技術】 目前’顯示裝置除被廣泛應用於家用電腦、電視等，更被應 用於便攜式電腦、行動電話、車載或機載之視聽娛樂設備等。[Technical Field] The present invention relates to a display device and a control method thereof, and more particularly to a display device capable of automatically adjusting display luminance and a control method thereof. [Prior Art] At present, the display device is widely used in home computers, televisions, etc., and is also applied to portable computers, mobile phones, on-board or on-board audio-visual entertainment devices.
顯示裝置之操作環境會隨一定條件而變化，.如地點之不同， 環境光線之強弱及燈光開關等，使用者在不同環境輝度下觀察顯 示影像時，需針對不同環境輝度而對顯示裝置之顯示輝度做&對 應之調整’以獲得最舒適之視覺感受。而&顯示裝置之顯 度需手動調整，較為不便。 第一圖係一種先前技術顯示裝置之電路區塊圖。該顯 L00蕾t括τ訊號源110、一控制按鍵120、複數輝度感測元件士、 電連，該輝度感測元件125之顯示控制電路13〇、一記憶體 及一顯示模組150。 〜 芯賴林置1G°之顯_度控制流程圖 源‘=^^電初始化，_The operating environment of the display device varies with certain conditions, such as the location, the intensity of the ambient light, and the light switch. When the user observes the displayed image under different environmental brightness, the display device needs to be displayed for different environmental brightness. Brightness & corresponding adjustments 'to get the most comfortable visual experience. The display of the & display device needs to be manually adjusted, which is inconvenient. The first figure is a circuit block diagram of a prior art display device. The display signal source 110, a control button 120, a plurality of luminance sensing components, an electrical connection, a display control circuit 13 of the luminance sensing component 125, a memory, and a display module 150. ~ Core Lai Lin set 1G ° display _ degree control flow chart source ‘=^^ electric initialization, _
140 130 二 _喃柯紅設定等。 訊號控 意，制：輝I。若使用者對當前顯示輝 1不 至=====顯示輝度。 示輝程:生變化時，該顯示模組15。之: 驟S31 _則％境輝度。該輝度感測元件⑵監測到環境; 5 1321312 13〇 〇 環境輝度之變化，^^ gH方案。該顯示控制電路〗30根據 疋干又<又化，取仔一顯示輝度調整方案。 π鼓二Ϊ S33 5周整顯示輝度。該顯示控制電路130裉撼韶-描痒 調整該顯示模組150之顯示輝Ϊ 示輝产#定信/存/則顯示輝度。該顯示控制電路130將當前顯 入該記憶體刚中，以便下次啟動時讀t 之顯：100監測環境輝度之變化’自動調整顯干模电150 f顯不輝度’ _手_整，且150 使用一段時間後，該顯示模組15〇内之輝外置100 之顯示輝度並非ί預期之題訊號後’顯示模組150調整後 【發明内容】 期如輝度，從而使得輝度控财夠準確。 有鑑於^一度控制準確之顯示裝置。 -種顯示裝Ϊ it:種控制該顯示裝置之控制方法。 第二輝度_“22-ir极組、—第—輝度感測元件、一 監測環境輝度，並“輝;；=第該巧測元件用以 該顯示模組之顯示輝度，並發件用以監測 接該顯示模組、該第-輝度感測;ί;ί第π 第=置包括-顯示模組、- 第二輝度感測元件監:該;監：境輝度;該 控制電路調整該顯示模组之顯示輝U度;該顯示 顯示控制電路反饋顯示模組之實際顯示輝Ϊγ輝度感測元件向該 6 P相較於先前技術，前述顯示裝置藉由第二輝度感測元件，直 接監測顯示模組之實際輝度，配合可監測環境輝度之第一輝度感 ，元件，為顯示控制電路提供準確之輝度回饋，增加顯示輝度& 制準確度。 【實施方式】 請參閱，四圖，係本發明顯示裝置一較佳實施方式之電路區 ，圖。5亥顯示裝置400包括一訊號源41〇、一控制按鍵420、一顯 ，控制電路43〇、一記憶體440、一顯示模組450、電連接於該顯 =控制電路430之複數第一輝度感測元件425及電連接於該顯示 梃組450之複數第二輝度感測元件455。 ，訊號源410可為光訊號源、模擬訊襄源或數字訊號源。 该顯示控制電路430可接受傳送訊號，並調整顯示裝置4〇〇 =顯示輝度。針對不同類型顯示裝置400,可選擇對應控制方式。 若該顯示裝置400為陰極射線管(Cath〇de_Ray Tube，CRT)顯示裝 置，則該顯示控制電路430可控制其電子搶之能量；若該顯示^ 置400為液晶顯示裝置(Liquid Crystal Display，LCD)，則該顯示控 制電路430可控制其光源之電壓；若該顯示裝置4〇〇為電装顯示 裝置(Plasma Display Panel，PDP)，則該顯示控制電路430可控制 產生電漿效應之電壓。 該記憶體440為可抹除記憶體，常為電致抹除可編程唯讀記 憶體（Electrically Erasable Programmable Read-Only Memory， EEPROM) 〇 該第一輝度感測元件425可監測環境輝度，該第二輝度感測 元件455可監測顯示模組450之顯示輝度。該第一輝度感測元件 425與该第二輝度感測元件455為光敏電阻、半導體元件、光學元 件或光學積體電路等。 請參閱第五圖，係本發明顯示裝置4〇〇之初始化流程圖。 步驟S51 ’訊號輸入。該顯示裝置4〇〇通電初始化，自一訊號 源410取得影像訊號，並傳送至該顯示裝置4〇〇。 1321312 乂驟852凟取儲存設定。該顯 440中設定，如上次_時之顯示輝度設^路桃知己憶體 W步ΐϋ電Ϊ調整顯示輝度。鋪示控制電路發出於制 减二周正1員不柄組45〇之顯示輝度為上次關閉時 立4S54’手動調整顯示輝度。若使用者對前干輝^又: 思’可错由該控制按鍵42()調整為所需之顯示輝度扣輝度不滿 至此，該顯示襞置4〇〇之初始化完成。 使用過程巾，當魏輝度發生變化， 光之開關等，該顯示模袓45〇之顯干強弱之义化，燈 圖所示。 M45G之顯不輝度之自動調整過程如第六 ^驟S6卜監測環境輝度。該第一輝度義測元件42 二〇輝。度之變化，並將當前環境輝度訊號傳送至該顯示二制 步驟S62 ’監測顯示輝度。該第二輝度感測元件455實時 ΐϊΪ輝度’並將所監測之顯示輝度訊號傳送Ϊ該 ㈣iff顯示輝度°該顯示控制電路根據顯示輝度 ㈣方案發出控制訊號，調整該顯示模組之顯示輝产。又 反饋實際顯示輝度。該第二財感測元件455將調 2 至該顯示控制電路43G，S調整後之顯示輝度 湖紐讀轉度’則該齡㈣魏輯對顯示輝 ς進2調整’若碰後之顯示輝度為職碰後之_輝度，則 ·， 頁不控制電路430結束對顯示輝度之調整。 一步驟S66 ’儲存當前顯示輝度。該顯示控制電路43〇將當前顯 不輝度存入己憶體440中，以便下次啟動時讀取。 擁不裝置400採用第二輝度感測元件455直接監測顯示模 ，且50之貫際輝度，配合可監測環境輝度之第一輝度感測元件 8 ii確為/。示㈣提鲜叙輝細饋，增續示輝度控 本發明之顯示裝置並不限於上述實 測元件425與該第二輝度感測元件455 $ °泫第一輝度感 換開或關，使其監測或不監測輝度變化還==換式，即可切 環境輝度魏而_碰之f求^ 騎顯示輝度不隨 修飾或變化，皆應包含於以下申請專利範圍内。 種i前技術顯示裝置之電路區塊圖。 以以;;;:裝#置;;度控制流程圖。 四圖所巧裝置之初始化流程圖。 '、四騎稍示裝置之輝度控制流程圖。 顯示裝置 控制按鍵 顯示控制電路 顯示模組 [主要元件符號說明】 400 訊號源 410 420 第一輝度感測元件 425 430 記憶體 440 450 第二輝度感測元件 455140 130 II _ 柯柯红 settings, etc. Signal control, system: Hui I. If the user displays the current 1 or not =====, the brightness is displayed. Display range: The display module 15 when the change occurs. It: Step S31 _ then % brightness. The luminance sensing element (2) monitors the environment; 5 1321312 13〇 〇 changes in ambient luminance, ^^ gH scheme. The display control circuit _30 is configured to display a luminance adjustment scheme according to the sputum and the splicing. π drum two Ϊ S33 5 weeks to show the brightness. The display control circuit 130 adjusts the display brightness of the display module 150 to display the brightness of the display unit 150. The display control circuit 130 will be currently displayed in the memory, so that the next time the start is read, the display of t: 100 monitors the change in the ambient luminance 'automatically adjusts the dry mode 150 150 to show no brightness' _ hand _ whole, and 150 After using for a period of time, the display brightness of the external display 100 in the display module 15 is not the desired signal. After the display module 150 is adjusted, the invention content is as bright as the brightness, so that the brightness control is accurate enough. . In view of the fact that ^ once controlled accurate display device. - Display device: It controls the control method of the display device. The second luminance _ "22-ir pole group, - the first luminance sensing component, a monitoring environment luminance, and "hui;; = the first sensing component is used for the display luminance of the display module, and the sending component is used for monitoring Connected to the display module, the first-thin sensing; ί; ί; πth = include - display module, - second luminance sensing component monitoring: the; brightness: ambient brightness; the control circuit adjusts the display mode The display display shows that the control circuit feedback display module actually displays the gamma gamma luminance sensing element to the 6 P phase. The display device directly monitors the display by the second luminance sensing component. The actual luminance of the module, together with the first luminance sense, the component that can monitor the ambient luminance, provides accurate luminance feedback for the display control circuit, and increases the display luminance & accuracy. [Embodiment] Please refer to FIG. 4 for a circuit area and a diagram of a preferred embodiment of the display device of the present invention. The display device 400 includes a signal source 41A, a control button 420, a display, a control circuit 43A, a memory 440, a display module 450, and a plurality of first luminances electrically connected to the display control circuit 430. The sensing element 425 and the plurality of second luminance sensing elements 455 electrically connected to the display group 450. The signal source 410 can be an optical signal source, an analog signal source, or a digital signal source. The display control circuit 430 can accept the transmission signal and adjust the display device 4 〇〇 = display luminance. For different types of display devices 400, a corresponding control mode can be selected. If the display device 400 is a cathode ray tube (CRT) display device, the display control circuit 430 can control the energy of the electronic robbing; if the display device 400 is a liquid crystal display device (Liquid Crystal Display, LCD) The display control circuit 430 can control the voltage of the light source; if the display device 4 is a Plasma Display Panel (PDP), the display control circuit 430 can control the voltage that generates the plasma effect. The memory 440 is an erasable memory, which is often an Electrically Erasable Programmable Read-Only Memory (EEPROM). The first luminance sensing component 425 can monitor the ambient luminance. The two luminance sensing component 455 can monitor the display luminance of the display module 450. The first luminance sensing element 425 and the second luminance sensing element 455 are a photoresistor, a semiconductor element, an optical element, an optical integrated circuit, or the like. Please refer to the fifth figure, which is an initialization flowchart of the display device 4 of the present invention. Step S51' signal input. The display device 4 is powered on and initialized, and the image signal is obtained from a signal source 410 and transmitted to the display device 4A. 1321312 Step 852 to retrieve the storage settings. In the display 440, the display brightness of the above time _ is set to ^ 桃 知 忆 忆 W W W W W W W W W W W W W Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ The display control circuit is issued during the second week of the correction. The brightness of the display is 45 〇. When the display is turned off, the 4S54' manually adjusts the display brightness. If the user presses the control button 42() to adjust to the desired display brightness, the user is not satisfied with the front-end glow, and the initialization of the display device is completed. When using the process towel, when the Wei Hui degree changes, the light switch, etc., the display mode 45 〇 显 显 显 显 , , , , , , , , , , , , , , , , , The automatic adjustment process of the display brightness of the M45G is as follows, the sixth step S6 is used to monitor the ambient brightness. The first luminance measuring element 42 is bismuth. The change in degree is transmitted and the current ambient luminance signal is transmitted to the display two-step S62' to monitor the display luminance. The second luminance sensing component 455 transmits the monitored luminance signal to the (four)iff display luminance. The display control circuit sends a control signal according to the display luminance (4) scheme to adjust the display yield of the display module. The feedback actually shows the brightness. The second sensing component 455 will be adjusted to the display control circuit 43G, and the adjusted display brightness of the lake will be read as 'the age of the fourth (four) Wei series will be adjusted to display the brightness of the second adjustment 'if the touch brightness After the _ luminance, the page non-control circuit 430 ends the adjustment of the display luminance. A step S66' stores the current display brightness. The display control circuit 43 stores the current display luminance into the memory 440 for reading at the next startup. The device 400 monitors the display mode directly by the second luminance sensing component 455, and the first luminance of the device is matched with the first luminance sensing component 8 ii that can monitor the ambient luminance. The display device of the present invention is not limited to the above-mentioned measured component 425 and the second luminance sensing component 455 $ ° 泫 first brightness sense is turned on or off to enable monitoring Or do not monitor the change in luminance == change, you can cut the environmental brightness Wei and _ touch the f to ask for the ride. The display brightness does not vary with the modification or change, and should be included in the following patent application. A circuit block diagram of a prior art display device. To ;;;: install #定;; degree control flow chart. The initialization flow chart of the device shown in Figure 4. ', four rides slightly show the brightness control flow chart. Display device Control button Display control circuit Display module [Main component symbol description] 400 Signal source 410 420 First luminance sensing element 425 430 Memory 440 450 Second luminance sensing element 455