200843546 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種有機發光顯示裝置與其控制方 法，特別是有關於一種有機發光顯示裝置與其控制方法。 【先前技術】 相較於傳統液晶顯示器，視角廣以及反應時間快，使用 有機發光材料（例如有機發光二極體·)的顯示器具有視角廣以 及反應時間快等優點。使用有機化合物做為發光材料可實現 具有自發光源及在各視角皆有高反應速度的平面顯示器。當 有機發光顯示器應用在如數位攝影機、個人數位助理（pda) 和視訊電話等之消費電子產品時，可提供低消耗功率、高亮 度和尺寸輕薄等優點。有機發光顯示器可分為主動陣列裝置 ί被動陣列裝置，一者之主要差異係在於··主動陣列裝置係 利用π有電容的電晶體來儲存資料，而此電晶體可根據電容 斤儲存的負料來輸出電流至有機發光材料，藉以控制晝面的 由於各種電子消費產品的體積越來越小，使得有機發光 =裝置㈣積受關縮，加上電路製程的關，故有機發 裝置的電路佈線可能具有相當大的電阻。當有機發光 上，：f開始抽取電流時，這些電阻會形成電壓降於佈線 ，上導致有機發光顯示裝置的運作不正常。 素的^路照:1圖，其係緣示習知之有機發光顯示裝置之像 路不思圖，其中像素⑽係用以顯示預設顏色，Vss 7 200843546 係代表有機發光顯示裝置100的接地參考電位。在像素110 中電Ba體開關112係根據掃描線114的掃描訊號來接收資 料線116的資料電壓vdata。當電晶體開關112開啟後，資 ^ 料電壓Vdata會傳遞至電容120，並且與電源裝置121所提 ▲ 供之電源電壓VP產生一電位差於電容120的兩端，以使電 谷120儲存有代表預設顏色的電位差。接著，電晶體124根 據此電位差來提供工作電流至有機發光二極體126，而使有 ζ" 有機發光元件126顯示預設顏色。由以上說明可知，儲存於 電容120之預設顏色的資料係由電源電壓Vp和資料電壓 Vdata來決定。在一般的狀況下，佈線電阻R之值非常小， 電源電壓Vp可視為；t值，因此資料線116只需根據電源電 壓Vp來提供相應的資料電壓Vdata即可使有機發光二極體 126顯不出預設顏色。然而，若佈線體積太小會導致佈線電 阻R上升，當像素丨1〇抽取電流工作時，電源電壓會受 到佈線電阻R的影響而減少，因此儲存於電容^ 之電位差 g 也會跟著變小，使有機發光元件126發生顯示錯誤。 因此’需要一種新的有機發光顯示裝置與其使用方法來 避免因電壓降而產生的顯示錯誤。 【發明内容】 - 本發明之一方面係在提供一種有機發光顯示裝置與其 控制方法，藉以避免因電壓降而產生顯示錯誤。 根據本發明之實施例，此有機發光顯示裝置至少包含： 複數個像素，其中每一個像素係用以顯示預設顏色，每一像 8 200843546BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to an organic light emitting display device and a control method therefor, and more particularly to an organic light emitting display device and a control method therefor. [Prior Art] Compared with the conventional liquid crystal display, the display has a wide viewing angle and a fast response time, and a display using an organic light-emitting material (for example, an organic light-emitting diode) has a wide viewing angle and a fast reaction time. The use of an organic compound as a luminescent material enables a flat panel display having a self-luminous source and a high reaction speed at various viewing angles. When OLED displays are used in consumer electronics such as digital cameras, personal digital assistants (PDAs) and video phones, they offer low power consumption, high brightness and slim size. The organic light-emitting display can be divided into an active array device and a passive array device. The main difference is that the active array device uses a π-capacitor transistor to store data, and the transistor can store the material according to the capacitance. In order to output current to the organic luminescent material, the volume of various electronic consumer products is controlled to be smaller and smaller, so that the organic luminescence = device (4) is reduced, and the circuit process is closed, so the circuit wiring of the organic device May have considerable resistance. When the organic light is on, when f starts to draw current, these resistors will form a voltage drop on the wiring, causing the organic light-emitting display device to malfunction. The photo of the element is shown in Fig. 1 , which shows the image of the conventional organic light-emitting display device, wherein the pixel (10) is used to display the preset color, and Vss 7 200843546 represents the ground reference of the organic light-emitting display device 100. Potential. In the pixel 110, the electric Ba body switch 112 receives the data voltage vdata of the data line 116 based on the scanning signal of the scanning line 114. When the transistor switch 112 is turned on, the voltage Vdata is transmitted to the capacitor 120, and a potential difference is generated between the power supply voltage VP supplied from the power supply unit 121 at both ends of the capacitor 120, so that the electric valley 120 is stored with a representative. The potential difference of the preset color. Next, the transistor 124 supplies an operating current to the organic light emitting diode 126 based on the potential difference, so that the organic light emitting element 126 displays a preset color. As can be seen from the above description, the data stored in the preset color of the capacitor 120 is determined by the power supply voltage Vp and the data voltage Vdata. Under normal conditions, the value of the wiring resistance R is very small, the power supply voltage Vp can be regarded as the value of t; therefore, the data line 116 only needs to provide the corresponding data voltage Vdata according to the power supply voltage Vp to make the organic light-emitting diode 126 No preset colors. However, if the wiring volume is too small, the wiring resistance R rises. When the pixel 丨1〇 extracts the current, the power supply voltage is reduced by the influence of the wiring resistance R, so the potential difference g stored in the capacitor ^ also becomes smaller. A display error occurs in the organic light emitting element 126. Therefore, a new organic light-emitting display device and a method of using it are required to avoid display errors due to voltage drop. SUMMARY OF THE INVENTION One aspect of the present invention provides an organic light emitting display device and a control method thereof to avoid display errors due to voltage drop. According to an embodiment of the invention, the organic light emitting display device comprises at least: a plurality of pixels, wherein each pixel is used to display a preset color, each image 8 200843546
Ο 素係至少包含：有機發光元件、掃描開關、儲存電容、電流 控制元件以及顯示開關。有機發光元件係用以顯示上述之預 設顏色。掃描開關係用以根據一掃描訊號來接收資料電壓。 儲存電容係用以儲存代表預設顏色之資料電位差，'其中此資 料電位差係為資料電壓與電源電壓之差值。電流控制元件係 用以輸出工作電流至有機發光元件，其中電流控制元件係電 性連接至儲存電容，以根據資料電位差來輸出上述之工作電 流。顯示開關係用以控制有機發光元件之工作狀態，其中= 訊號反向。其中，當儲存電容儲存有f料電位差且掃描開關 關閉時，儲存電容之-端之電壓值可根據儲存電容之另一端 之電壓值來改變，儲存電容之此端係被施加資料電壓，儲存 電容之此另一端係被施加電源電壓。 很羅本發明 見轭例，此有機發光顯示裝置至少包 含：複數個像素列和複數個顯示開關，其中每一像素列係包 含複數個像素，每—像素係用以顯示預設顏色並至少包含. 有機發光元件、掃描開關、儲存電容以及電流控制元件。有 2光7C件係用以顯示預設顏色。掃描開懸用以根據一掃 之資料電位Γ1Γ 電容係用以儲存代表預設顏色 …。J 料電位差係為資料電壓與電_ 件置中雷流控制70件係用以輸出工作電流至有機發光元 件’其中電流控制元件侈兩 電位差來鈐屮μ、十、接至儲存電容，以根據資料 差且掃f門a之工作電流。當儲存電容儲存有資料電位 差且你描開關關閉時，帝六 存电谷之一端之電壓值係根據儲存 9 200843546 :容，另一端之電壓值來改變，儲存電容之此端係被施加資 =電[冑;^電容之此另一端係被施加電源電堡。上述之顯 示_係以-對—之方式電性連接至上述之像素列，以根據 , 反向g sfL絲控制有機發光元件之作狀態，其中反向掃 . 描訊號係與掃描訊號反向。 根據本發明之又-實施例，提出—種有機發光顯示裝置 之=方法’此㈣方法係至少包含：提供—資料寫入階段， ( 冑料寫入又係至少包含：關閉顯示開關，以使電流控制 元料止提供卫作電流至有機發光元件；開啟掃描開關來接 收貝料將貧料電壓輸出至儲存電容，使儲存電容儲存 代表預設顏色之資料電位差，其巾資料電位差係為資料電壓 與電源電壓之差值；以及提供補償畫面顯示階段，此補償畫 面顯示階段至少包含：關閉掃描開關，使儲存電容之一端之 電壓值根據另—端之電壓值來改變，其中儲存電容之此端係 被施加資料電壓’儲存電容之此另-端係被施加電源電壓； 〇 以及開啟顯示開關’使電流控制元件根據資料電位差來輸出 工作電流至有機發光元件，以開啟有機發光元件。 【實施方式】 . 明同時參照第2a圖和第2b圖，第2a圖係繪示根據本發 明之第一實施例之有機發光顯示裝置200的結構示意圖 2b圖係繪示根據本發明之第一實施例之像素2〇2的電路示意 圖。有機發光顯示裝置200係包含電源裝置2〇1、複數個= 素202、複數條掃描線2〇4和複數條資料線2〇6，其中佈線 200843546 電阻R係位於每-像素2〇2與電源裝置2gi之間。有機發光 顯示裝置200係利用掃描、線2〇4來控制每個像素2〇2之工作 時間’並利用資料線寫來傳送像素2〇2所顯示之資料，使 • 母一像素202顯示預設顏色。 . # —像素202係至少包含有機發光元件212、掃描開關 214、健存電容216、電流控制元件218及顯示開關220。有 機！X光元件212係於像素202工作時，用以顯示預設顏色 f 210其中有機發光70件212可例如為有機發光二極體。掃 描開關214係電性連接至掃描線2〇4和資料線施，以根據 掃描訊，SScan來接收資料線2〇6所提供之資料電壓別咖。 儲存電容216之-端係電性連接至掃描開關2i4，儲存電容 216之另—端係係電性連接至電源裝置。當掃描開關214 開啟時冑存電谷216之-端會被施加資料電壓vdata，而 其另一端則被施加電源電壓Vp，其中f料電壓與電源 電C Vp之電位差係為代表預設顏色2丨〇的資料電位差。因 〇 此’可㈣理解儲存電容216係利用上述之方式來儲存資料 電位差。電流控制元件218係電性連接至儲存電容216，用 以根據錯存電容216所儲存的資料電位差來輸^作電流至 有機發光7L件212，使有機發光元件212根據工作電流的強 . 度來發光。顯示開關220係用以控制有機發光元件212的工 作狀態’其中顯示開_ 220係根據反向掃描訊號如咖來工 作。反向掃描訊號Sxscan係與掃描訊號反向，因此當 t描開II m之工作狀態為開啟時，顯示開關22〇之工作狀 態為關閉；當掃据開關214之工作狀態為關閉時，顯示開關 11 Γ Ο 200843546 220之工作狀態為開啟。 請再參照第2b圖，在本發 關2Η、電流控制料2 之弟—^例中，掃描開 其中電流控制元件218的門二：：關220係為ρ型電晶體， 、巧極（G)係電性連接至儲存電容216 和柃描開關214的電性連接處（ ^ 收電源電壓VP並電性連接至= =/)，源極⑻係用以接 連接至儲存電各216之另一端（即節點 =，没極⑼係電性連接至顯示開關22q，因此，電流控制元 ,218的閘極導通電壓Vgs等於儲存電容216所儲存之資料 電位差，示開關220係電性連接於電流控制元件218和有 機毛光元件212之間，以決定電流控制元件218是否可提供 工作電流至有機發光元件212。 清參照第3圖，其騎示根據本發明之第—實施例之節 點A之電壓和節點^電壓的波形圖。本發明之第一實施例 係=兩個階段來操作有機發光顯示裝置細，此兩個階段係 為育料寫入階段310和補償晝面顯示階段3 12。在資料寫入 P白丰又310中，掃描訊號Sscan為低電位，而反向掃描訊號 Sxscan為高電位，因此掃描開關214之工作狀態為開啟，而 顯不開關220之工作狀態為關閉。當掃描開關214開啟後， 資料線206所提供之資料電壓Vdata會經由掃描開關214輸 入至儲存電容216。若此時的電源電壓Vp之值為V1，則儲 存電容216儲存的資料電位差為Va_vl，其_ Va為資料電壓 Vdata之值。接著，進入補償晝面顯示階段3丨2。在補償晝面 顯示階段312中，掃描訊號Sscan為高電位，而反向掃描訊 號Sxscan為低電位，因此掃描開關214之工作狀態為關閉， 12 200843546 而顯示開關220之工作狀態為開啟。當顯示開關22〇開啟 後，電"π»控制元件218可根據儲存電容216儲存的資料電位 差來提供工作電流至有機發光元件212。若此時的電源電壓 ★ VP之值因佈線電阻R的電壓降而變成V2，節點a的電壓也 會隨之改變’使儲存於儲存電容216的資料電位差維持不 變。假設此時節點A的電壓值為Vb，則V2-Vl=Vb-Va=AV， 其中△V係代表佈線電阻R的電壓降的值。由於資料電位差 不會受到佈線電阻R的電壓降影響，因此有機發光元件212 可顯示正常的預設顏色21〇。 請參照第4圖其係繪示根據本發明第一實施例之有機發 光顯示裝置200之控制方法4〇〇。在步驟4〇1中，係提供資 料寫入階段310,以寫入代表預設顏色21〇之資料於儲存電 容216中。在步驟402中，係提供補償晝面顯示階段312， 以使有機發光元件212顯示正常的預設顏色2丨〇。 睛參照第4a圖，其係繪示資料寫入階段3 1〇之流程圖。 ^ 在步驟401a中，關閉顯示開關22〇使電流控制元件218停止 提供工作電流至有機發光元件212,以便進行資料寫入動 作。在步驟401b中，開啟掃描開關214來接收資料電壓 Vdata，並將資料電壓Vdata送至儲存電容216，使儲存電容 • 216儲存代表預設顏色210之資料電位差。 凊參照第4b圖，其係繪示補償畫面顯示階段312之流 程圖。在步驟402a中，關閉掃描開關214，使節點a之電壓 值根據電源電壓Vp來改變。在步驟娜中，開啟顯示開關 220，使電流控制元件218根據資料電位差來輸出工作電流 13 Γ Ο 200843546 至有機發光元件212，μ 喑η日士失Ρ 有機發光元件212。 π Rk參照第5a圖和 — 明之第-者#如丄 圖’弟5a圖係繪示根據本發 5 二：本;:^ 圖。ϋ· 弟一只知例之像素502的電路示意 口像f 5〇2係類缺像素2() 擇裝置508,其中像素5〇2更包含電源選 .^ _ '’、、裝置508係包含第一電源開關510 和弟一電源開關512。第一 σ. c 冤源開關510係用以根據掃描訊 號Sscan來提供第一電壓 电i Vpl弟二電源開關512係用以根 據反㈣描訊號Sx嶋來提供第二電壓vp2。第—電源開關 第-電源開關512係電性連至儲存電容216和電流控 制元件218的電性連接處（即節點B)。根據以上說明可合理 推知&電源電壓Vp係為第一電壓Vpl或第二電壓％2。 月多…第6圖，其係繪示根據本發明之第二實施例之節 點A之電壓和節點B之電壓的波形圖。本發明之第二實施例 係以兩個1¾段來操作有機發光顯示裝置2〇〇，此兩個階段係 為資料寫入階段310和補償畫面顯示階段312。在資料寫入 階段310中，掃描訊號Sscan為低電位，而反向掃描訊號 Sxscan為尚電位，因此掃描開關214和第一電源開關51 〇之 工作狀態為開啟，而顯示開關220和第二電源開關512之工 作狀悲為關閉。當掃描開關214開啟後，資料線206所提供 之資料電壓Vdata會經由掃描開關214輸入至餘存電容 216。另外，第一電源開關510開啟後，此時的電源電壓νρ 為第一電壓Vpl，若第一電壓Vpl之值為VI，儲存電容216 儲存的資料電位差則為Va-Vl，其中Va係為資料電壓Vdata 14 200843546 之值。接著’進入補償畫面顯示階段312。在補償畫面顯示 階段312中，掃描訊號Sscan為高電位，而反向掃描訊號 Sxscan為低電位，因此掃描開關214和第一電源開關51〇之 工作狀悲為關閉，而顯示開關220和第二電源開關512之工 作狀悲為開啟。當顯示開關220開啟後，電流控制元件218 可根據儲存電容216儲存的資料電位差來提供工作電流至有 機發光το件212。另外，當第二電源開關512開啟後，此時 節點B的電壓係由第二電壓Vp2來決定。若此時的第二電壓 Vp2之值因佈線電阻R的電壓降變成v2，則節點a的電壓 ^會隨著改變’使儲存於儲存電纟216 #資料電位差維持不 變。假設此時節點A的電壓值為Vb，則V2-Vl=Vb-Va=^V， ，中Δν為電源電壓Vp的變動值，且由於本第二實施例之 第^電壓Vpl之值係與第二電壓Vp2之值無關，因此可The 素 system includes at least: an organic light-emitting element, a scan switch, a storage capacitor, a current control element, and a display switch. The organic light-emitting element is used to display the aforementioned preset color. The scan-on relationship is used to receive the data voltage according to a scan signal. The storage capacitor is used to store the data potential difference representing the preset color, 'where the potential difference is the difference between the data voltage and the power supply voltage. The current control component is configured to output an operating current to the organic light emitting component, wherein the current control component is electrically connected to the storage capacitor to output the operating current according to the data potential difference. The display on relationship is used to control the operating state of the organic light emitting element, wherein the = signal is reversed. Wherein, when the storage capacitor stores the f potential difference and the scan switch is turned off, the voltage value of the storage capacitor can be changed according to the voltage value of the other end of the storage capacitor, and the storage capacitor is applied with the data voltage, the storage capacitor At the other end, a power supply voltage is applied. In the invention, a luminescent device includes at least a plurality of pixel columns and a plurality of display switches, wherein each pixel column includes a plurality of pixels, each pixel is used to display a preset color and includes at least . Organic light-emitting elements, scan switches, storage capacitors, and current control components. There are 2 light 7C parts to display the preset color. The scanning suspension is used to store the representative preset color according to the sweep potential Γ1Γ. J material potential difference is the data voltage and electricity _ pieces of the center of the lightning flow control 70 pieces are used to output the working current to the organic light-emitting element 'where the current control element has two potential differences 钤屮μ, 十, connected to the storage capacitor, according to The data is poor and the operating current of the gate a is scanned. When the storage capacitor stores the data potential difference and you draw the switch off, the voltage value at one end of the Emperor Six Storage Valley is changed according to the storage voltage of the other end, and the end of the storage capacitor is applied. The other end of the electric [胄; ^ capacitor is applied to the power supply. The above display is electrically connected to the above-mentioned pixel column in a manner of -to-being, in order to control the state of the organic light-emitting element according to the reverse g sfL wire, wherein the reverse scanning is opposite to the scanning signal. According to still another embodiment of the present invention, a method for the organic light-emitting display device is provided. The method includes: providing a data-writing phase, and (including writing at least: turning off the display switch to enable The current control element feeds the servo current to the organic light emitting element; the scan switch is turned on to receive the bedding material to output the lean voltage to the storage capacitor, so that the storage capacitor stores the data potential difference representing the preset color, and the data potential difference of the towel is the data voltage The difference from the power supply voltage; and the compensation picture display stage, the compensation picture display stage includes at least: turning off the scan switch, so that the voltage value of one end of the storage capacitor is changed according to the voltage value of the other end, wherein the end of the storage capacitor The data voltage is applied. The other end of the storage capacitor is applied with a power supply voltage; 〇 and the display switch is turned on to cause the current control element to output an operating current to the organic light emitting element according to the data potential difference to turn on the organic light emitting element. Referring to Figures 2a and 2b simultaneously, Figure 2a shows a diagram according to the present invention. 2 is a schematic circuit diagram of a pixel 2〇2 according to a first embodiment of the present invention. The organic light-emitting display device 200 includes a power supply device 2〇1, plural Each of the elements 202, the plurality of scanning lines 2〇4, and the plurality of data lines 2〇6, wherein the wiring 200843546 resistor R is located between each pixel 2〇2 and the power supply device 2gi. The organic light-emitting display device 200 utilizes scanning, Line 2〇4 controls the working time of each pixel 2〇2 and uses the data line write to transfer the data displayed by the pixel 2〇2, so that the mother-one pixel 202 displays the preset color. #—pixel 202 is at least The organic light-emitting element 212, the scan switch 214, the storage capacitor 216, the current control element 218, and the display switch 220. The organic! X-ray element 212 is used to display the preset color f 210 when the pixel 202 is in operation, wherein the organic light-emitting device 70 212 can be, for example, an organic light emitting diode. The scan switch 214 is electrically connected to the scan line 2〇4 and the data line to receive the data voltage provided by the data line 2〇6 according to the scan signal. Electricity The end of the capacitor 216 is electrically connected to the scan switch 2i4, and the other end of the storage capacitor 216 is electrically connected to the power supply device. When the scan switch 214 is turned on, the data voltage vdata is applied to the end of the storage valley 216. The other end is applied with a power supply voltage Vp, wherein the potential difference between the f-material voltage and the power supply voltage C Vp is a data potential difference representing a preset color of 2 。. Because of this, (4) understanding the storage capacitor 216 is using the above The data control device 218 is electrically connected to the storage capacitor 216 for outputting current to the organic light-emitting device 7L according to the data potential difference stored in the storage capacitor 216, so that the organic light-emitting device 212 operates according to the operation. The current is strong to emit light. The display switch 220 is for controlling the operational state of the organic light-emitting element 212. The display ON-220 is based on a reverse scan signal such as a coffee. The reverse scan signal Sxscan is reversed from the scan signal, so when the working state of t m is II is on, the working state of the display switch 22 is off; when the working state of the scan switch 214 is off, the display is displayed 11 Γ Ο 200843546 220 The working status is ON. Please refer to FIG. 2b again. In the example of the present invention, the gate 2 of the current control element 218 is turned on: the off 220 is a p-type transistor, and the gate is (G). ) is electrically connected to the electrical connection between the storage capacitor 216 and the scan switch 214 (^ receives the power supply voltage VP and is electrically connected to ==/), and the source (8) is used to connect to the storage battery 216 One end (ie, node=, the poleless (9) is electrically connected to the display switch 22q. Therefore, the gate conduction voltage Vgs of the current control element 218 is equal to the data potential difference stored by the storage capacitor 216, and the switch 220 is electrically connected to the current. Between the control element 218 and the organic glare element 212, it is determined whether the current control element 218 can supply an operating current to the organic illuminating element 212. Referring to Figure 3, it rides the node A according to the first embodiment of the present invention. Waveform diagram of voltage and node voltage. The first embodiment of the present invention is a two-stage operation of the organic light-emitting display device. The two stages are the feed writing stage 310 and the compensated face display stage 3 12 . In the data written to P Baifeng and 310, sweep The signal Sscan is low, and the reverse scan signal Sxscan is high, so the working state of the scan switch 214 is on, and the active state of the switch 220 is off. When the scan switch 214 is turned on, the data line 206 provides The data voltage Vdata is input to the storage capacitor 216 via the scan switch 214. If the value of the power supply voltage Vp at this time is V1, the data potential difference stored in the storage capacitor 216 is Va_vl, and _Va is the value of the data voltage Vdata. The compensation picture display stage 3丨2. In the compensation picture display stage 312, the scan signal Sscan is high, and the reverse scan signal Sxscan is low, so the scan switch 214 is turned off, 12 200843546 and the switch is displayed The working state of 220 is ON. When the display switch 22 is turned on, the electric "π» control element 218 can supply the operating current to the organic light emitting element 212 according to the data potential difference stored in the storage capacitor 216. If the power supply voltage at this time is ★ VP The value becomes V2 due to the voltage drop of the wiring resistance R, and the voltage of the node a also changes, so that the data stored in the storage capacitor 216 is electrically The bit difference remains unchanged. Assuming that the voltage value of node A is Vb at this time, V2-Vl=Vb-Va=AV, where ΔV represents the value of the voltage drop of the wiring resistance R. Since the data potential difference is not affected by the wiring resistance The voltage drop of R is affected, so that the organic light-emitting element 212 can display a normal preset color 21 〇. Referring to Fig. 4, there is shown a control method of the organic light-emitting display device 200 according to the first embodiment of the present invention. In step 4〇1, a data writing stage 310 is provided to write data representing the preset color 21〇 in the storage capacitor 216. In step 402, a compensated facet display stage 312 is provided to cause the organic light emitting element 212 to display a normal preset color 2丨〇. Referring to Figure 4a, it is a flow chart showing the data writing stage. ^ In step 401a, the display switch 22 is turned off, causing the current control element 218 to stop supplying an operating current to the organic light emitting element 212 for data writing. In step 401b, the scan switch 214 is turned on to receive the data voltage Vdata, and the data voltage Vdata is sent to the storage capacitor 216, so that the storage capacitor 216 stores the data potential difference representing the preset color 210. Referring to Figure 4b, a flowchart of the compensated picture display stage 312 is shown. In step 402a, the scan switch 214 is turned off so that the voltage value of the node a changes in accordance with the power supply voltage Vp. In step Na, the display switch 220 is turned on, so that the current control element 218 outputs the operating current 13 Γ Ο 200843546 to the organic light emitting element 212 according to the data potential difference, and the organic light emitting element 212 is absent. π Rk refers to the 5th figure and the - the first part of the figure - such as the figure ’ ’ ' brother 5a diagram is shown according to the present invention 5: this; ϋ· 一只 一只 一只 像素 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 502 The first power switch 510 and the first power switch 512. The first σ.c source switch 510 is configured to provide a first voltage according to the scan signal Sscan. The second power switch 512 is configured to provide the second voltage vp2 according to the inverse (four) trace Sx. First - Power Switch The first power switch 512 is electrically connected to the electrical connection of the storage capacitor 216 and the current control element 218 (i.e., node B). According to the above description, it can be reasonably inferred that the power supply voltage Vp is the first voltage Vpl or the second voltage %2. Fig. 6 is a waveform diagram showing the voltage of the node A and the voltage of the node B according to the second embodiment of the present invention. The second embodiment of the present invention operates the organic light-emitting display device 2 in two 12⁄4 segments, which are the data writing phase 310 and the compensation picture display phase 312. In the data writing phase 310, the scan signal Sscan is low, and the reverse scan signal Sxscan is still potential, so the scan switch 214 and the first power switch 51 are turned on, and the switch 220 and the second power are displayed. The operation of the switch 512 is closed. When the scan switch 214 is turned on, the data voltage Vdata provided by the data line 206 is input to the remaining capacitor 216 via the scan switch 214. In addition, after the first power switch 510 is turned on, the power supply voltage νρ at this time is the first voltage Vpl. If the value of the first voltage Vpl is VI, the data potential difference stored in the storage capacitor 216 is Va-Vl, where Va is data. The value of voltage Vdata 14 200843546. Then 'Enter the compensation screen display stage 312. In the compensation picture display stage 312, the scan signal Sscan is at a high level, and the reverse scan signal Sxscan is at a low level, so the scan switch 214 and the first power switch 51 are turned off, and the display switch 220 and the second are displayed. The operation of the power switch 512 is turned on. When the display switch 220 is turned on, the current control element 218 can provide an operating current to the organic light-emitting component 212 based on the data potential difference stored by the storage capacitor 216. In addition, when the second power switch 512 is turned on, the voltage of the node B at this time is determined by the second voltage Vp2. If the value of the second voltage Vp2 at this time is changed to v2 due to the voltage drop of the wiring resistance R, the voltage of the node a will change with the 'the potential difference stored in the storage battery 216# remains unchanged. Assuming that the voltage value of the node A is Vb at this time, V2-Vl=Vb-Va=^V, , Δν is a variation value of the power supply voltage Vp, and the value of the voltage Vpl of the second embodiment is The value of the second voltage Vp2 is irrelevant, so
一電源開關512。 像素列702之像素202係共 開關512。由於有機發光顯 15 200843546 不裝置700之像素2〇2的電晶體數量比有機發光顯示裝置 5〇〇的像素202的電晶體數量更少，因此有機發光顯示裝置 7〇〇的像素體積可比有機發光顯示裝置5⑻的像素體積更小。 • ^㈣參照第9圖和第圖，第9圖係繪示根據本發 月之第四貝_之有機發光顯示袭置_之像素列8〇2的驅 •自方塊示意圖，帛10圖係繪示根據本發明之第四實施例之 有=發光顯示裝置800之像素列802之像素202的驅動電路 〇 不意圖。有機發光顯示裝置_係類似於有機發光顯示裝置 700 1_有機發光顯不裝置8〇〇之每一像素列纽之像素 係/、用’.肩示開關220。由於有機發光顯示裝置8〇〇之像素搬 的=晶體數量比有機發光顯示裝置的像f2〇2的電晶體 數量更少’因此有機發光顯示裝置綱之像素的體積可進一 步地縮小。 雖然本發明已以實施例揭露如上，然其並非用以限定本 毛明:任何熟習此技藝者，在不脫離本發明之精神和範圍 内’當可作各種之更動與潤飾，因此本發明之保護範圍當視 〇 彳請之巾料利範圍所界定者為準。 【圖式簡單說明】 ，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： 《 » β 第1圖係繪示習知技術之有機發光顯示裝置之 路示意圖。 I的 16 200843546 弟2圖係繪不根據本發 每_各 ^ ^ ^ 乃之弟一貝施例之有機發光顯示 裝置之像素的電路示意圖。 第3圖係繪示根據本發 β <弟一貫施例之節點A之電壓 和郎點B之電壓的波形圖。 弟4圖係根據本於明笛 ^ 尿不&月弟一貫施例之有機發光顯示裝置之 控制方法。 $ 4a圖係繪示資料寫入階段之流程圖。 第4b圖騎示補償晝面顯示階段之流程圖。 第5圖騎示根據本發明之第二實施例之有機發光顯示 裝置之像素的電路示意圖。 μ第6圖係繪示根據本發明之第二實施例之節點a之電壓 和節點B之電壓的波形圖。 *第7圖係繪示根據本發明之第三實施例之有機發光顯示 裝置之像素的驅動方塊圖。 Ο 第8圖係繪示根據本發明之第三實施例之有機發光顯示 裝置之像素列之像素的驅動電路示意圖。 #第9圖係!會不根據本發明之第四實施例之有機發光顯示 裳置之像素列的驅動方塊圖。 第10圖係繪示根據本發明之第四實施例之有機發光顯 示裝置之像素列之像素的驅動電路示意圖。 【主要元件符號說明】 100 :有機發光顯示裝置 110 :像素 112 ·電晶體開關 丨14 ··掃描線 17 200843546 116 :資料線 121 :電源裝置 126 :有機發光二極體 201 :電源裝置 204 :掃描線 212 ··有機發光元件 216 :儲存電容 220 :顯示開關 312 :補償畫面顯示階段 401 :步驟 401b :步驟 402a :步驟 500 :有機發光顯示裝置 508 :電源選擇裝置 512 :第二電源開關 702 :像素列 802 :像素列 Vdata :資料電壓 Vpl :第一電壓 Sscan :掃描訊號 R :佈線電阻 B :節點 V2 :電壓值 120 :電容 124 :電晶體 200 :有機發光顯示裝置 202 :像素 206 :資料線 214 :掃描開關 218 :電流控制元件 310 ··資料寫入階段 400 :控制方法 401a :步驟 402 :步驟 402b :步驟 502 :像素 510 :第一電源開關 700 :有機發光顯示裝置 800 :有機發光顯示裝置A power switch 512. Pixel 202 of pixel column 702 is a common switch 512. Since the number of transistors of the pixel 2 〇 2 of the organic light-emitting display device 5 is less than the number of transistors of the pixel 202 of the organic light-emitting display device 5 2008, the pixel volume of the organic light-emitting display device 7 可 is comparable to that of the organic light-emitting device. The pixel size of the display device 5 (8) is smaller. • ^ (4) Referring to Figure 9 and Figure 9, Figure 9 is a diagram showing the drive from the fourth column of this month's organic light-emitting display _ pixel column 8 〇 2, 帛 10 map A driving circuit of a pixel 202 having a pixel column 802 of a light-emitting display device 800 according to a fourth embodiment of the present invention is shown. The organic light-emitting display device is similar to the pixel system of each of the pixel columns of the organic light-emitting display device 700 1_organic light-emitting display device 8 . Since the number of crystals of the pixels of the organic light-emitting display device 8 is smaller than the number of transistors of the image f2 〇 2 of the organic light-emitting display device, the volume of the pixels of the organic light-emitting display device can be further reduced. The present invention has been disclosed in the above embodiments, but it is not intended to limit the present invention. Any person skilled in the art can make various changes and refinements without departing from the spirit and scope of the present invention. The scope of protection shall be subject to the definition of the scope of the towel. BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, and advantages of the present invention will become more apparent and understood. β Fig. 1 is a schematic view showing the path of an organic light-emitting display device of the prior art. I. 16 200843546 Brother 2 shows a circuit diagram of a pixel of an organic light-emitting display device which is not based on the present invention. Fig. 3 is a waveform diagram showing the voltage of the node A and the voltage of the radiant point B according to the conventional embodiment of the present invention. The 4th figure is based on the control method of the organic light-emitting display device which is based on the method of Mingdi. The $4a diagram shows the flow chart of the data writing phase. Figure 4b is a flow chart showing the stage of the display of the compensation compensation surface. Fig. 5 is a circuit diagram showing the pixels of the organic light-emitting display device according to the second embodiment of the present invention. Fig. 6 is a waveform diagram showing the voltage of the node a and the voltage of the node B according to the second embodiment of the present invention. * Fig. 7 is a block diagram showing the driving of pixels of the organic light-emitting display device according to the third embodiment of the present invention. Fig. 8 is a view showing a driving circuit of a pixel of a pixel column of the organic light-emitting display device according to the third embodiment of the present invention. #第图图: A driving block diagram of a pixel column in which the organic light-emitting display according to the fourth embodiment of the present invention is not arranged. Figure 10 is a diagram showing a driving circuit of a pixel of a pixel column of an organic light-emitting display device according to a fourth embodiment of the present invention. [Description of main component symbols] 100 : Organic light-emitting display device 110 : Pixel 112 · Transistor switch 丨 14 · Scan line 17 200843546 116 : Data line 121 : Power supply device 126 : Organic light-emitting diode 201 : Power supply device 204 : Scan Line 212 · · Organic light-emitting element 216 : Storage capacitor 220 : Display switch 312 : Compensation screen display stage 401 : Step 401b : Step 402a : Step 500 : Organic light-emitting display device 508 : Power supply selection device 512 : Second power switch 702 : Pixel Column 802: pixel column Vdata: data voltage Vpl: first voltage Sscan: scan signal R: wiring resistance B: node V2: voltage value 120: capacitance 124: transistor 200: organic light-emitting display device 202: pixel 206: data line 214 Scan switch 218: current control element 310 · data writing stage 400: control method 401a: step 402: step 402b: step 502: pixel 510: first power switch 700: organic light emitting display device 800: organic light emitting display device
Vss :接地參考電位Vss : ground reference potential
Vp :電源電壓Vp: power supply voltage
Vp2 :第二電壓Vp2: second voltage
Sxscan:反向掃描訊號 A :節點 V1 :電壓值 △ V :電壓變動值 18Sxscan: Reverse scan signal A : Node V1 : Voltage value △ V : Voltage variation value 18