TWI375202B

TWI375202B - Source drive module, display and operation method for display

Info

Publication number: TWI375202B
Application number: TW96109698A
Authority: TW
Inventors: Ping Hung Lin; Shu Lin Pan; Chih Wei Chiang; Hui Lang Lee; Chun Cheng Chen
Original assignee: Chimei Innolux Corp
Priority date: 2007-03-21
Filing date: 2007-03-21
Publication date: 2012-10-21
Also published as: TW200839711A

Description

P050739SEZITW 22874twf.doc/n 九、發明說明：【發明所屬之技術領域】本發明是有關於一種顯示器，且特別是有關於一種可以改善關機殘影的顯示器。【先前技術】隨著電腦性能的大幅進步以及網際網路、多媒體技術的高度發展，目前影像資訊的傳遞大多已由類比轉為數位傳輪。為了配合現代生活模式，視訊或影像裝置之體積曰漸趨於輕薄。配合光電技術與半導體製造技術所發展之平面顯示器（Flat Panel Display，FPD)，例如液晶顯示器 (Liquid Crystal Display，LCD)、有機電激發光顯示器 (Organic Electro-Luminescent Display, OELD)或是電毁顯示器（Plasma Display Panel，PDP)，已逐漸成為顯示器產品之主流。 °° 圖1為習知顯示益的局部電路圖。請參照圖1，習知顯示器之每一晝素單元包括電晶體ΐθ3、液晶電容ι〇5以及儲存電容1〇8。當齡H接㈣關機訊號時，關機訊號會通過所有掃描線110而傳遞至每個電晶體。藉此，所有電晶體103都會被致能而開啟。此時，每個儲^電容 1〇8所儲存的電荷都可透過電晶體1〇3而釋出。因此，= 接至同一條資料線112的各儲存電容1〇8的電位會相同。緊接著，各條資料線Π2接地而使每個儲存電容存的電荷流到地。 m 然而，在資料線112接地尚未完成之前，雖軸Μ P050739SEZ1TW 22874twf.d〇c/n 同一條資料線112的各儲P050739SEZITW 22874twf.doc/n IX. Description of the Invention: [Technical Field] The present invention relates to a display, and more particularly to a display which can improve the afterimage of shutdown. [Prior Art] With the dramatic advancement of computer performance and the high development of Internet and multimedia technologies, most of the current image information transmission has changed from analog to digital transmission. In order to cope with the modern lifestyle, the size of video or video devices has become thinner and lighter. Flat panel display (FPD) developed by optoelectronic technology and semiconductor manufacturing technology, such as liquid crystal display (LCD), organic electro-luminescence display (OELD) or electro-destructive display (Plasma Display Panel, PDP) has gradually become the mainstream of display products. °° Figure 1 is a partial circuit diagram of a conventional display. Referring to FIG. 1, each of the pixel units of the conventional display includes a transistor ΐθ3, a liquid crystal capacitor 〇5, and a storage capacitor 〇8. When the age H is connected to the (four) shutdown signal, the shutdown signal is transmitted to each transistor through all the scan lines 110. Thereby, all of the transistors 103 are activated to be turned on. At this time, the charge stored in each of the storage capacitors 1 〇 8 can be released through the transistor 1 〇 3 . Therefore, the potential of each storage capacitor 1〇8 connected to the same data line 112 will be the same. Next, each data line Π2 is grounded so that the charge stored in each storage capacitor flows to the ground. m However, before the ground of the data line 112 is not completed, although the axis P050739SEZ1TW 22874twf.d〇c/n is stored in the same data line 112

存電===位I 二二;==;:以單：呈現相同灰影，而此關機殘影必須在就稱為關機殘消失。隨著消費者對於頻干112、114接地後才會渎不态之品質要求的日漸提升，如 ==影的現象已成為重要的課題》一種顯示器，可以改善關機殘影的現象。關機殘影的現象。 _組’可以改善顯示器出現本發明長:供一種顯示器之择影的現象。、法，可以改善關機殘本發明提出一種顯示器，包組、多個第-開關以及多個第二開; 列方式排列之晝素單元。源極驅動 :個:外門:㈣一開關之第，母個第-開關之第二端_接於:而搞接模式時，開嶋作於第一的-實施财，當第二卩操作接模式am線祕於接地端。 '弟一搞 P〇5〇739SE21tw 22874twf.d〇c/n 和餘Π衝，每織繼包括電晶體體之室_、 /、中，電晶體之閘極端接收掃描訊號，電晶沒極端轉轉接於—條資料線，電晶體之第二源/ -第==之第一端。此外，顯示器可更包括接之電壓準位。開關用以改變每個儲存電容第二端Λ 在此顯示器的—實施據顯示器之輪入，決括一㈣測電路’以根式。此外，例如2位;^ί —開關及第二開關之操作模第-電麗時，電路偵測到輸入電歸低至- 模式。另外’顯示器 ;^:開_作於第i接於儲存電容之第二妓。i由弟二開關，第三開關耦接壓降低至-第二1，、:電位偵測電路偵測到輸入電且第三開關操儲作於第二輕接模式，位。另夕卜，顯示器可更包括一端轉接之電塵準之顯示光源。此背光模組於電位提供顯示面板降低至第-電壓前關閉。、路細到輸入電壓在此顯示器的一實施例中原衝放大電路，h 岐具有-緩本發明提屮：資料線之間。加妓月棱出一種源極驅動模組，包括次個第一開關以及多個第二開關。其中喊源、多一端耦接於資料母個第—開關之第於-條資料Γ 原而母個第一開關之第二端則· 貝科線。母個第二開關耗接於相却从關竊接間。當第二開關操作於第一細莫式條：料線之才則各貧料線彼此 1375202 P050739SE21TW 22874twf.doc/n 耦接。在此源極驅動模組的一實施例中電路，以根據輸入電壓位準，決定笛文匕括一电位偵測操作模式。此外，例如當電位t^ — 開關及第二開關之低至-第-電屢時，第 '傲电路偵測到輸入電屋降 -耦接模式。另外，例“偵:則J第二開闕操作於第降低至-第二電壓時，第:=電路制到輸入電屢使資料線純於接地端。#…於第二耗接模式，以 f發明另提出-種顯示器，包括顯示面板驅動模組。其中述’原極备一、顯面板包括多個以陣列方式排列之金素早7L。源極驅動模組之資·^ 接於畫素單元。 4稭由夕條貝枓線而鹎在此源極驅動模組與顯示器的—實關操，於第二輕接模式時，則資料線轉接於接地^開Storage === Bit I 2nd; ==;: Single: Presents the same gray shadow, and this shutdown image must disappear after it is called shutdown. With the increasing quality requirements of consumers after the grounding of 112, 114, the phenomenon of == shadow has become an important issue. A display can improve the phenomenon of shutdown afterimage. The phenomenon of turning off the afterimage. The 'group' can improve the appearance of the display. The invention is long: a phenomenon for the selection of a display. The method can improve the shutdown residual. The invention provides a display, a package, a plurality of first switches, and a plurality of second open; Source drive: one: outer door: (four) the first switch, the second end of the female first switch _ connected to: while the connection mode, open for the first - implementation of the financial, when the second operation The connection mode am line is secreted to the ground terminal. 'Day one engages P〇5〇739SE21tw 22874twf.d〇c/n and Yu Yuchong, each weaving includes the chamber of the transistor _, /, medium, the gate of the transistor receives the scanning signal, the electro-crystal does not change extremely Transfer to the data line, the second source of the transistor / - the first end of ===. In addition, the display can further include a voltage level. The switch is used to change the second end of each storage capacitor. In this display, the implementation is based on the wheel of the display, and the one (four) circuit is determined to be in the root mode. In addition, for example, when the 2-bit switch and the second switch are operated, the circuit detects that the input power is reduced to the - mode. In addition, the display; ^: ON is made for the second 妓 of the storage capacitor. i is switched by the second switch, the third switch coupling voltage is lowered to - the second one, the potential detecting circuit detects the input power, and the third switch operates in the second light connection mode. In addition, the display may further include a display light source that is switched at one end. The backlight module is turned off before the potential supply display panel is lowered to the first voltage. The path is fine to the input voltage. In an embodiment of the display, the amplifier amplifier circuit, h 岐 has a slow delay of the present invention: between the data lines. A source drive module is included, including a second first switch and a plurality of second switches. The source of the shouting, the one end is coupled to the first section of the data parent switch, and the second end of the first switch of the parent, the Becco line. The second switch of the mother is connected to the phase but from the thief. When the second switch is operated on the first fine bar: the feed line, the lean lines are coupled to each other 1375202 P050739SE21TW 22874twf.doc/n. In an embodiment of the source drive module, the circuit determines the flue context to include a potential detection mode of operation based on the input voltage level. In addition, for example, when the potential t^ - the switch and the second switch are as low as - the first, the first circuit detects the input electric house drop - coupling mode. In addition, the example "detection: then the J second opening operation is reduced to the second voltage, the first: = circuit made to the input power repeatedly makes the data line pure to the ground. #... in the second consumption mode, The invention also proposes a display, including a display panel driving module, wherein the 'original one and the display panel include a plurality of gold arrays arranged in an array of 7L. The source driving module is connected to the pixel. Unit 4. The straw is connected to the source drive module and the display by the eve strip line. In the second light connection mode, the data line is switched to the ground.

驅軸組與顯示11的—實施例巾，更包括緩衝放大電路，轉接於資料訊號源與資料線之間更H 和儲施例中，每一晝素單元包括電、 m /、中’电晶體之閘極端接收—掃描訊號，電曰曰體之第-源/馳輪接於— = /没極端麵接於儲存電容之第一端。電曰曰體之弟〜琢開關實=例中’更包括-第三開關，第S 端麵接之«準位Γ端’用以改變儲存電容之第；在此顯示器的她例中，更包括一電位偵測電略， 1375202 P050739SEZ1TW 22874twf.doc/n =顯示器之輸入電壓，決定第-開關及第二開關之择 ms 1例ί當電位伯測電路偵測到輸人電壓降低竊接模cdi關開啟，且第二開關操作於第二 =核式。另外，顯不器可更包括—第三開關，第入㊉容之第二端。其中’電位偵測電路偵測:輪入私壓降低至一第二電厚時，— 勒式，且第%弟―開關㈣於第二麵接模 ί位改變儲存電容之第二端轉接之電壓板之顯示光源。此背光:;二:ί以提供顯示面壓降低至第一電壓前關閉電位侦測電路偵測到輸入電本發明提出一種顯示器之摔作首先，偵測顯示器之輸入雷二:括下列步驟。麼，使顯示器的資===ί輸：：電壓降低至第1 元之電晶體，以_接於電晶體的多i ΐί二互相中和，這些電晶嶋接於二'Li些錯存電容之第一端的電位互相t和後，改仏二儲存電容之第二軸接之電4位準。操二Τ ’在改_存電容之第二端端。此ΐ 線麵接於接地後，才改變儲存電二接之=;:;=由_存電容之第，疋在田輸入电壓由弟一電壓降低至第二電壓 1375202The drive shaft set and the display 11 - the embodiment towel, further includes a buffer amplifying circuit, which is transferred between the data signal source and the data line, and in the storage case, each of the pixel units includes electricity, m /, medium' The gate of the transistor is extremely received - the scanning signal, the first source of the electric body is connected to the -= / no terminal is connected to the first end of the storage capacitor. The younger brother of the electric body ~ 琢 switch real = in the case 'more includes - the third switch, the S end is connected to the «quasi Γ end' to change the storage capacitor; in her case of this display, Including a potential detection circuit, 1375202 P050739SEZ1TW 22874twf.doc / n = display input voltage, determine the first switch and the second switch ms 1 case ί when the potential beta circuit detects the input voltage reduction stealing mode Cdi is off and the second switch is operated on the second = core. In addition, the display may further include a third switch, the second end of the tenth. Wherein the 'potential detection circuit detects: when the wheeled private voltage is reduced to a second thickness, the type, and the first part of the switch (four) is switched on the second side of the module ί bit to change the storage capacitor. The display source of the voltage plate. The backlight: 2: ί provides a display surface voltage to reduce the voltage to the first voltage before the potential detection circuit detects the input power. The invention proposes a display of the fall. First, the input of the display is detected: the following steps are included. What makes the display of the device ===ί input:: The voltage is reduced to the first cell of the transistor, and the _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The potential of the first end of the capacitor is t and after, and the second axis of the second storage capacitor is switched to the electric 4 level. The second step is to change the second end of the capacitor. After the 线 line surface is connected to the ground, it changes the storage power connection =;:; = by the _ storage capacitor, the 疋 field input voltage is reduced from the second voltage to the second voltage 1375202

P050739SEZ1TW 22874twf.d〇c/n 後進行。到關作方法中，輸人電壓是在顯示器接收降低於第：電=在接收到關機訊號後與輪入_ -二電查刖，更包括關閉顯示器的背光模組。 =上所述，本發明之源極驅動模組顯示器及顯示器操作方法可以改善關機殘影的現象。P050739SEZ1TW 22874twf.d〇c/n is performed afterwards. In the method of closing, the input voltage is reduced on the display. The first: electricity = after receiving the shutdown signal and the wheel _ - 2, the backlight module is also turned off. As described above, the source drive module display and display operation method of the present invention can improve the phenomenon of shutdown afterimage.

為讓本發明之上述和其他目的、特徵和優點能更明顯重’下文特舉較佳實施例’並配合_圖式，作詳細說明如下。【實施方式】The above and other objects, features and advantages of the present invention will become more apparent <RTIgt; [Embodiment]

圖2為本發明一實施例之顯示器的電路圖。請參照圖 2，本實施例之顯示器200包括源極驅動模組21〇、顯示面板220以及開關232和234。其中，源極驅動模組210藉由資料線236耦接於顯示面板22〇，而顯示面板22〇包括夕個以陣列方式排列的晝素單元222。此外，本實施例之顯不器200還可包括背光模組23〇，其用以提供顯示面板 220之顯示光源。在本實施例中，顯示面板220例如是液晶顯示面板、有機電激發光顯不面板或是其他適合的顯示面板。眾所皆知的’在顯示器200中，除了本實施例所揭露的源極驅動模Μ 210和顯示面板220之外，還包括閘極驅動電路，本實施例省略其介紹。然而，在此領域具有通常知識者應該知道在顯示器220中還可包括其他的元件，本實施例則不多加贅述。 1375202 P050739SE21TW 22874twf.doc/n 請繼續參照圖2 ’源極驅動模組21〇具有資料訊號源 212，且還可具有缓衝放大電路214。其中，資料訊號源212 透過資料線236將資料訊號傳送至每一晝素單元222。當存，緩衝放大電路214 _，資料訊號源212是先將資料二，提供至緩衝放大電路214，再由緩衝放大電路214透過貝料線236將貧料訊號傳送至每一晝素單元拉。以下，都以存在緩衝放大電路214為例進行說明。2 is a circuit diagram of a display in accordance with an embodiment of the present invention. Referring to FIG. 2, the display 200 of the present embodiment includes a source driving module 21A, a display panel 220, and switches 232 and 234. The source driving module 210 is coupled to the display panel 22A via the data line 236, and the display panel 22 includes the pixel unit 222 arranged in an array. In addition, the display device 200 of the embodiment may further include a backlight module 23A for providing a display light source of the display panel 220. In the embodiment, the display panel 220 is, for example, a liquid crystal display panel, an organic electroluminescence display panel, or other suitable display panel. In the display 200, in addition to the source driving module 210 and the display panel 220 disclosed in the present embodiment, a gate driving circuit is also included, which is omitted in the present embodiment. However, those having ordinary skill in the art should know that other components may be included in the display 220, and the present embodiment will not be described again. 1375202 P050739SE21TW 22874twf.doc/n Please continue to refer to FIG. 2 'The source driver module 21' has a data source 212 and may also have a buffer amplifier circuit 214. The data signal source 212 transmits the data signal to each of the pixel units 222 through the data line 236. When the buffer amplifier circuit 214_ is stored, the data source 212 first supplies the data to the buffer amplifier circuit 214, and then the buffer amplifier circuit 214 transmits the poor signal to each of the pixel units through the feed line 236. Hereinafter, the presence of the buffer amplifier circuit 214 will be described as an example.

開關232之第一端耗接於緩衝放大電路214,開關232 = 資 I以決定是否將資料訊號傳開關234 _接於相鄰的兩條資當開關234操作於第—輕接模式時，所有貝料線236是彼此麵接的。若開關2 式，資料線236是耗接於接地端咖。丨、弟一耗接模圖3A為應用於圖2之顯示器的電圖。請參照圖2與圖3A，開關232與23 ==The first end of the switch 232 is consumed by the buffer amplifying circuit 214, and the switch 232 = I to determine whether to connect the data signal transmitting switch 234_ to the adjacent two resources when the switch 234 operates in the first-light mode, all The feed lines 236 are surfaced to each other. If the switch 2 type, the data line 236 is consumed by the ground terminal.丨弟弟一图图 Figure 3A is an electrical diagram applied to the display of Figure 2. Please refer to FIG. 2 and FIG. 3A, switches 232 and 23 ==

;一，電路⑽偵、測到的輸入電壓位準而決i: 二電接‘ 開關開關二偵測電路24(M貞測到輸人電 ^ =仇測電路-操控開關234於第:二電科，電位俱舉例而言，首先設定參考電壓^ 如2·7伏特或3.6伏特。A中^行疋认’例述的第-電麵第二_料^考電壓^就是依照前、疋接者，再調整電阻Rl〇 1375202 P050739SEZ1TW 22874twf.doc/n 與R20的電阻值比例。如此—來，考電壓Vref時，運算放大器A10 藉由遲滯放大器A20放大而輪出。考電壓Vref時，運算放大器A1〇藉由遲滯放大器A2〇放大而輸出。出的是高位準電壓或低位準電壓 A20糕接之開關的狀態。First, the circuit (10) detects and measures the input voltage level and determines i: two electrical connections' switch switch two detection circuit 24 (M贞 measured input power ^ = hate circuit - control switch 234 in the second: two For example, electric power, potential, first set the reference voltage ^ such as 2 · 7 volts or 3.6 volts. A in the line 疋疋 ' 'example of the first - electric surface second _ material ^ test voltage ^ is in accordance with the front, 疋Then, adjust the ratio of the resistance of Rl〇1375202 P050739SEZ1TW 22874twf.doc/n and R20. So, when the voltage Vref is tested, the operational amplifier A10 is amplified by the hysteresis amplifier A20. When the voltage Vref is measured, the operation is performed. The amplifier A1 输出 is amplified by the hysteresis amplifier A2 〇 output. The state of the switch of the high level voltage or the low level voltage A20 is output.

犯Ξρ 元的電路圖。請參照圖2與圖 3Β ’畫素早疋222可包括電晶體32〇、液晶電容仍和儲存電容323。電晶體320之間極端耦接於掃描線312，電晶體320之第-源/没極端轉接於資料線236，電晶體创2 第二源/沒極端輕接於儲存電容323之第—端。此外，在實施例中’儲存電容323之第二端所耗接之電壓位準還可根據電位侧電路240 (繪示於圖3Α)是否偵測到輪入電塵降低至第二電壓，而透過開關326改變，例如由正Circuit diagram of Ξρ元. Referring to FIG. 2 and FIG. 3', the pixel 222 may include a transistor 32 〇, a liquid crystal capacitor, and a storage capacitor 323. The transistor 320 is extremely coupled to the scan line 312. The first source/none terminal of the transistor 320 is transferred to the data line 236, and the second source of the transistor is not connected to the first end of the storage capacitor 323. . In addition, in the embodiment, the voltage level consumed by the second end of the storage capacitor 323 can also be transmitted according to whether the potential side circuit 240 (shown in FIG. 3A) detects that the wheeled electric dust is reduced to the second voltage. Switch 326 changes, for example by positive

當輸入電壓Vin大於參會輸出向位準電壓，並當輸入電壓Vin小於參會輸出低位準電壓，並遲滯放大器A20放大輸，即決定與遲滯放大器作時所祕之共通電壓（I，咖麵讀age)輕接至接地端GND，藉此改變儲存電幻μ之第二端所搞接之電壓位準，而更有效地改善關機殘影現象，但並不限定於此。其中，接地端GND也可以其他電壓位準取代。藉此，顯不器200可以改善關機殘影的現象。舉例而言’本實施例中的源極驅動模組21〇及開關232 和234可一併製作於一印刷電路板上。以下，5尤明晝素單το 222的運作方式。當掃描訊號通過掃描線312而傳遞至電晶體32〇時，電晶體32〇會被致 12 1375202 P050739SEZ1TW 22874twf.doc/n 能而開啟。此時，源極驅動模組21〇將資料訊號經由資料線236傳送至畫素單元222，並透過電晶體32〇而對儲存電容323充電。圖4為本發明一實施例之顯示器之操作方法的步驟流程圖。請合併參照圖2、圖3B以及圖4，本實施例之顯示器之操作方法可應用於圖2之顯示器2〇〇,但不限定於此。本實施例之顯示器之操作方法包括下列步驟。首先，如步驟S401所述，偵測顯示器2〇〇之輸入電壓。當顯示器2〇〇接收到一關機訊號時，其輸入電壓會開始降低。 —接著，如步驟S403所述，判斷輸入電壓是否降低至第電壓。值得注意的是，在本實施例中，在顯示器接收到關機sfl號後與輸入電壓降低至第一電壓之前，可將背光模組230關閉。當偵測到顯示器2〇〇之輸入電壓降低至第一，壓時，則開啟開關232，使得緩衝放大電路214無法將資料訊號傳送至晝素單元222。同時，開關Μ4操作於第耦接模式，使得資料線236彼此耦接(步驟S405)。緊接著，通過所有掃描線312而傳遞致能訊號到所有電晶體320。藉此，所有電晶H 320都會被致能而開啟(步驟㈣乃。因此’每個晝素單元η2之儲存電容323會透過電晶體32〇釋放儲存電荷，以使所有儲存電容奶之第一端的電位互相中和。 _當所有儲存電容323之第一端的電位互相中和後，顯不面板22^上的每個晝素單元222都會呈現相同的灰階。當顯不器200為液晶顯示器時，顯示面板220之操作When the input voltage Vin is greater than the reference output to the level voltage, and when the input voltage Vin is lower than the reference output low level voltage, and the hysteresis amplifier A20 amplifies the input, it determines the common voltage with the hysteresis amplifier (I, the coffee surface) The read level) is lightly connected to the ground GND, thereby changing the voltage level at which the second end of the storage phantom μ is connected, and more effectively improving the phenomenon of shutdown afterimage, but is not limited thereto. Among them, the ground GND can also be replaced by other voltage levels. Thereby, the display 200 can improve the phenomenon of shutdown afterimage. For example, the source driving module 21 and the switches 232 and 234 in this embodiment can be collectively fabricated on a printed circuit board. Below, the operation mode of 5 You Ming Suicong single το 222. When the scan signal is transmitted to the transistor 32 through the scan line 312, the transistor 32 is turned on by the 12 1375202 P050739SEZ1TW 22874twf.doc/n. At this time, the source driving module 21 transmits the data signal to the pixel unit 222 via the data line 236, and charges the storage capacitor 323 through the transistor 32〇. 4 is a flow chart showing the steps of a method of operating a display according to an embodiment of the present invention. Referring to Fig. 2, Fig. 3B and Fig. 4, the operation method of the display of this embodiment can be applied to the display 2 of Fig. 2, but is not limited thereto. The method of operating the display of this embodiment includes the following steps. First, as shown in step S401, the input voltage of the display 2 is detected. When the display 2 接收 receives a shutdown signal, its input voltage will begin to decrease. - Next, as described in step S403, it is judged whether or not the input voltage is lowered to the first voltage. It should be noted that in this embodiment, the backlight module 230 can be turned off after the display receives the shutdown sfl number and before the input voltage is lowered to the first voltage. When it is detected that the input voltage of the display 2 is lowered to the first voltage, the switch 232 is turned on, so that the buffer amplifying circuit 214 cannot transmit the data signal to the pixel unit 222. At the same time, the switch Μ 4 is operated in the first coupling mode such that the data lines 236 are coupled to each other (step S405). The enable signal is then passed through all of the scan lines 312 to all of the transistors 320. Thereby, all the crystal H 320 will be enabled and turned on (step (4). Therefore, the storage capacitor 323 of each pixel unit η2 will release the stored charge through the transistor 32 ,, so that all the storage capacitors are the first. The potentials of the terminals are neutralized with each other. _ When the potentials of the first terminals of all the storage capacitors 323 are neutralized with each other, each of the pixel units 222 on the panel 22 is displayed with the same gray scale. Operation of the display panel 220 when the liquid crystal display is

13 1375202 P050739SE21TW 22874twf.doc/n 模式可區分為常態黑晝面(n〇rmally black)和常態白畫面 (normally white)。若顯示面板22〇之操作模式為常態黑晝面，儲存電容323之第一端的電位互相中和後，畫素單元 222所顯示的畫面會較接近暗態而不易看到雜訊。此外，若背光模組230在接收到關機訊號後與輸入電壓降^至第―電壓前就關’將不會有光線由背光模技 230穿透顯示面板22G’更可完全避免讓使用者看到關機影。接著，當偵測到顯示器200之輸入電壓降低至第二電壓時，讓開關234操作於第二耦接模式，以使資料線236 耗接至接地i% GND。當輸入電壓降低至第二電壓後，讓開關234操作於第二耦接模式，以使資料線236耦接至接地編GND。亦即是，開關326會在此時切換，使得儲存電容 323之第二端執接之電壓準位改變，例如：電位由共通電壓（Vcom，common v〇itage)改變為接地端GND。藉此，本實施例提供儲存電容323另一放電路徑而進一步改呈關機殘影。（步驟S4U) 關圖5為本發明另一實施例之顯示器的電路圖。請參照圖5，本實施例之顯示器5〇〇包括源極驅動模組以及顯示面板520。本實施例之顯示器500與圖2之顯示器2〇〇相似，其差異在於開關532和534的配置位置，其餘相同之處在此不贅述。本實施例中，開關532和534是整合於源極驅動模組510内。然而，本實施例十各構件的電性耦接關係與前述實施例相同，因此與前述實施例具有相同的 14 1375202 P050739SEZ1TW 22874twf.doc/n 優點。哭之’在本發明之祕麟模组、顯示器及顯示 i，因此可Ϊ:料:於各ί料線在顯示器關機時可互相導相同電位。藉此，可以改善關機殘影的現象:早凡處於雖然本發明已以較 =明*任何熟習此技藝者，在不辑發= =當視後::===者$本發明之保護【圖式簡單說明】马竿二Τ °兒明習知顯示器的局部電路圖。圖本發明-實施例之顯示器的電路圖。圖。图Α為應用於圖2之顯示器的電位侧電路的電路 ®:ΒΘ是說明圖2之晝素單元的電路圖。驟流Ξ圖域叫發明—實_^㈣之方法的步【主明另一實施例之顯示器的電路圖。 L主要7C件符號說明】 103、320 :電晶體 105 :液晶電容 .儲存電容 110、312 :掃描線 112、114、236 :資料線 1375202 P050739SEZ1TW 22874twf.doc/n 200、500 :顯示器 210、510 :源極驅動模組 212、512 :資料訊號源 214、514 :緩衝放大電路 220、520 :顯示面板 222、522 :晝素單元 230、530 :背光模組 232、234、326、532、534 :開關 240 :電位偵測電路 A10 :運算放大器 A20 :遲滯放大器 R10、R20 :電阻13 1375202 P050739SE21TW 22874twf.doc/n The mode can be divided into normal black face (n〇rmally black) and normal white (normally white). If the operation mode of the display panel 22 is the normal black surface, the potentials of the first end of the storage capacitor 323 are neutralized with each other, and the picture displayed by the pixel unit 222 is closer to the dark state and the noise is not easily seen. In addition, if the backlight module 230 is turned off after receiving the shutdown signal and the input voltage drops to the first voltage, there will be no light from the backlight module 230 penetrating the display panel 22G', and the user can be completely avoided. Go to the shutdown screen. Then, when it is detected that the input voltage of the display 200 is lowered to the second voltage, the switch 234 is operated in the second coupling mode to draw the data line 236 to the ground i% GND. After the input voltage is lowered to the second voltage, the switch 234 is operated in the second coupling mode to couple the data line 236 to the grounding GND. That is, the switch 326 is switched at this time, so that the voltage level of the second terminal of the storage capacitor 323 is changed, for example, the potential is changed from the common voltage (Vcom, common v〇itage) to the ground GND. Therefore, this embodiment provides another discharge path of the storage capacitor 323 to further change the afterimage. (Step S4U) OFF FIG. 5 is a circuit diagram of a display according to another embodiment of the present invention. Referring to FIG. 5, the display 5 of the embodiment includes a source driving module and a display panel 520. The display 500 of the present embodiment is similar to the display 2 of FIG. 2, and the difference lies in the arrangement positions of the switches 532 and 534, and the rest are not described herein. In this embodiment, switches 532 and 534 are integrated into source drive module 510. However, the electrical coupling relationship of the components of the tenth embodiment is the same as that of the foregoing embodiment, and therefore has the same advantages as the foregoing embodiment 14 1375202 P050739SEZ1TW 22874twf.doc/n. "Crying" in the secret module, display and display i of the present invention, therefore, it is possible to: each material line can conduct the same potential to each other when the display is turned off. By this, it is possible to improve the phenomenon of shutdown afterimage: although the invention has been familiar with this technique, the person who is familiar with the art, after the issue = = when the view:: === the protection of the invention [ A brief description of the schema] Ma Wei two Τ ° children know the display of the partial circuit diagram. A circuit diagram of a display of the present invention-embodiment. Figure. Figure Α is a circuit applied to the potential side circuit of the display of Fig. 2: ΒΘ is a circuit diagram illustrating the pixel unit of Fig. 2. The step of the method of inventing the field is called the method of the invention - the method of the method of the fourth embodiment. [Following the circuit diagram of the display of another embodiment. L main 7C symbol description] 103, 320: transistor 105: liquid crystal capacitor. storage capacitor 110, 312: scan line 112, 114, 236: data line 1375002 P050739SEZ1TW 22874twf.doc / n 200, 500: display 210, 510: Source drive modules 212, 512: data signal sources 214, 514: buffer amplifier circuits 220, 520: display panels 222, 522: halogen units 230, 530: backlight modules 232, 234, 326, 532, 534: switches 240: Potential detection circuit A10: Operational amplifier A20: Hysteresis amplifier R10, R20: Resistor

Vin :輸入電壓Vin : input voltage

Vref :參考電壓 VDD :電壓源 323 :儲存電容 325 .液晶電容 GND :接地端 S401、S403、S405、S407、S411 :步驟 16Vref : Reference voltage VDD : Voltage source 323 : Storage capacitor 325 . Liquid crystal capacitor GND : Ground terminal S401, S403, S405, S407, S411 : Step 16

Claims

xJ / JZUZ 單^-¾ a修正本 L種具改善關機殘影之顯示器，包括： —月 S >r- t 一、申請專利範圍：晝轉^面板’該顯示面板包括多個以陣列方式排列之一源極驅動模組，罝右_杳藉由，資軸接於該^晝;=源’該資料訊號源訊號^個^開二開關之第—端輕接於該資料中之一 .4關之第一鈿則耦接於該些資料線其、，以及間，^ = 3^=—第二開關_於相鄰之資料線之彼此關操作於第一減模式時，該些資料線示3 =範圍第1項所述之具改善關機殘影之顯料_接1=^開關操作於第二_模式時，該些資示器所述之具改善關機殘影之顯曰曰體，該電晶體之閘極端接收—掃描訊號，該電曰曰體之第一源/没極端耦接於該些資料線其中之一；以及電容，該儲存電容之第-端_於該電晶體之弟一源/>及極端。不 4.女口申請專利範圍第3項所述之具改善關機殘影之顯六。:更包括-第三開關，該第三開關輕接於該些儲存電谷之第二端’用以改變該些儲存電容之第二端祕之電壓 17 1375202 101-5-28 準位。 5.如申請專利範圍第1項所述之罝改盖_ 示器，更包括-電位_電位機殘影之顯顯示器之一輸入電壓，決—°/電位偵測電路係根據該之操作模式。—“些第一開關及該些第二開關示器=電述之具㈣^ -電壓時，該些第」電=一第一耦接模式。及·=·弟一開關#作於第示器7，1申包3= 3述之具改善關機殘影之顯壓蝴路偵測到該輸入電壓降低今笛一 mm〜第一開關操作於第二耦接模式，且 ^第二開關_以改變該些儲存電容之第二雜接準位。 —乾圍$6項所述之具改善關機殘影之顯 =it 触，啸供觸㈤板之顯示光源， ;==電_測物測到該輸入電壓降低至該示哭Hr專利範圍第1項所述之具改善關機殘影之顯二W，八中該源極驅動模組更具有— 於該資料碱源與該些資料線之間。㈣放大電路输 ίο.—種源極驅動模組，包括：一資料訊號源； 101-5-28 夕個第一開關，每一第一開一第一開關之第二端間’當鄰之資料線之彼此耦接。 ^ _拉式時，該些資料線令該圍第Μ項所述之源極驅動模組，其於接地端。$於第—時’該些資料線输中該^ = 12項所述之源極驅動模組，其時，該些第輸人f壓降低至—第一電壓模式。幵^ ，且該些第二開關操作於第一耦接中今1 電專鄕㈣12賴述之源極職模組，1 :;:ΓΓ侦測到該輸入電壓降低至-第二電壓值輕接忿S開關操作於第二祕模式，以使該些資料線包括10項所述之源極驅動模組，更之間。冤路，耦接於該資料訊號源與該些資料線 1375202 101-5-28 16.—種顯示器，包括：一顯示面板，該顯示面板包括多個以陣列方排列之晝素單元；一源極驅動模組，包括：一資料訊號源，該資料訊號源藉由多條資料線耦接於該些畫素單元； '、xJ / JZUZ Single ^ -3⁄4 a Correction of this L type of display with improved shutdown afterimage, including: - Month S > r- t I. Patent scope: ^转^面板' The display panel includes multiple arrays Arranging one source driver module, 罝 right _ 杳, the axis is connected to the ^ 昼; = source 'the data signal source signal ^ ^ ^ open the second end of the switch is lightly connected to one of the materials The first pass of the .4 switch is coupled to the data lines, and, ^ = 3^= - the second switch _ when the adjacent data lines are operated in the first subtraction mode, Data line 3 = range of the material shown in item 1 to improve the shutdown of the residual image _ connected 1 = ^ switch operation in the second _ mode, the display of the indicators to improve the shutdown of the residual image Body, the gate of the transistor receives a scan signal, the first source of the electrode body is not extremely coupled to one of the data lines; and the capacitor, the first end of the storage capacitor is The source of the crystal is a source/> and extreme. 4. The female mouth applies for the invention of the third paragraph as described in the third paragraph of the patent application scope. And further comprising a third switch, the third switch being lightly connected to the second end of the storage valleys </ RTI> for changing the voltage of the second end of the storage capacitors 17 1375202 101-5-28. 5. The tamper-evident _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . - "The first switch and the second switch = the electrical device (4) ^ - voltage, the first "electrical" = a first coupling mode. And ·=·弟一开关# made in the indicator 7, 7, the application package 3 = 3 described with the improved shutdown residual image of the pressure film to detect the input voltage to reduce the current flute a mm ~ the first switch operates The second coupling mode, and the second switch _ to change the second miscellaneous level of the storage capacitors. —The display of the improved shutdown of the residual image in the $6 item, the display of the light source, the display light source of the whistle (5) board, and the measurement of the input voltage are reduced to the first crying Hr patent range. According to the item, the source driving module of the improved shutdown image is further provided between the source of the data source and the data lines. (4) Amplifying circuit input ίο.—A kind of source driving module, including: a data signal source; 101-5-28 a first switch, each of which opens a second switch between the second end of the first switch The data lines are coupled to each other. ^ _ pull-type, these data lines make the source drive module described in the second item, at the ground. The source drive module of the ^=12 items in the data line of the first-times, wherein the first input voltage is reduced to the first voltage mode.幵^, and the second switches are operated in the first coupling of the first electrical circuit (4) 12, the source component module, 1:;: ΓΓ detected that the input voltage is reduced to - the second voltage value is light The S switch is operated in the second secret mode, so that the data lines include 10 of the source drive modules, and more. The circuit is coupled to the data signal source and the data lines 1 752 520 101-5-28. The display comprises: a display panel comprising a plurality of pixel units arranged in an array; The pole drive module includes: a data signal source coupled to the pixel units by a plurality of data lines;

多個第-開關’每-第-開關之第—端耦接於該資料訊號源，而每-第-開關之第二端則輕接於該些資料線其中之一；以及多個第二開關，每一第二開關耦接於相鄰之資料線之間，當该些第一開關操作於第一輕接模式時，該些資料線彼此耦接。、 Μ 17.如申請專利範圍第16項所述之顯示器，其中該此第-開關操作於第二祕模式時，該些資料線祕於接地The first end of each of the plurality of first switches is coupled to the data signal source, and the second end of each of the first switches is lightly connected to one of the data lines; and the second Each of the second switches is coupled between the adjacent data lines. When the first switches are operated in the first light connection mode, the data lines are coupled to each other. The display device of claim 16, wherein when the first switch operates in the second secret mode, the data lines are secreted to ground.

18.如申請專利範圍第16項所述之顯示器，其晝素單元包括：〃一電晶體，該電晶體之閘極端接收一掃描訊號，該電晶體之第一源/汲極端耦接於該些資料線其中之一丨以1 一儲存電容，該儲存電容之篦—眭缸拉第二源/_端。 “之第—接於錢晶體之〜19.如f請專利範圍第18項所述之顯示器，更包括一第三開關’該第三祕於該些儲存電容以改變該些儲存電容之第二端_之電壓準位。一 101-5-28 電位須測電路，兮^圍弟16項所述之顯示器，更包括-電壓，決定該心貞測電路係根據麵示器之一輪入 21·如申請：開關及該些第二開關之操作模式。位偵剛電路债^第2G項所述之顯示器，其中讀電些第-開壓降低至-18. The display of claim 16, wherein the pixel unit comprises: a transistor, the gate of the transistor receiving a scan signal, and the first source/turner of the transistor is coupled to the transistor One of the data lines is a storage capacitor, and the storage capacitor is connected to the second source /_ terminal. "The first - is connected to the crystal of the money ~ 19. The display of the 18th item of the patent scope, including a third switch 'the third secret of the storage capacitors to change the second of the storage capacitors The voltage level of the terminal _. A 101-5-28 potential measurement circuit, 兮 ^ circumference of the display of the 16 items, including - voltage, determines that the heartbeat circuit is based on one of the surface indicators Such as the application: the switch and the operation mode of the second switch. The monitor of the second detection of the second detection of the circuit, wherein the reading of the first-opening voltage is reduced to -

22.如申請專：;苐-開關刼作於第-耦接模式。第三開關H圍弟20項所述之顯示器，更包括-中該電偏^二開關輪於該些儲存電容之第二端，1 時，到該輸人電壓降低至-第二電壓作以改變於第二麵式’且該第三開關操又又該些儲存電容之第二端耦接之電壓準位。背申請曰專利範圍第21項所述之顯示器，更包括-兮番、、、且，以提供簡示面板之顯示光源，該背光模組於二電位偵測電路_到該輸人電Μ降低至該第—電壓前闭0 〇22. If the application is specific: 苐-switch is used in the first-coupling mode. The display of the third switch H is 20, and further comprises: the second switch of the second switch, wherein the input voltage is reduced to - the second voltage is Changing to the second surface 'and the third switching operation and the second terminal of the storage capacitors are coupled to the voltage level. The display device described in claim 21 of the patent application includes: - a display panel, and a display light source for providing a brief display panel, wherein the backlight module is reduced in the two potential detecting circuit _ to the input power Until the first - voltage before closing 0 〇

24.如申知專利範圍第16項所述之顯示器，其中該源極驅動模組更具有一緩衝放大電路，耦接於該資料訊^^原與該些資料線之間。 'U/' 25. —種顯示器之操作方法，包括下列步驟：偵測該顯示器之一輸入電壓；當該輸入電壓降低至一第一電壓，使該顯示器的一資料訊號源與多條資料線之間斷開，並使該些資料線彼此輛接； ' 在該些資料線彼此耦接後’導通該顯示器的所有畫素 21 1375202 101-5-28 單元之電晶體，以使祕於該些電晶體的多〜弟-端的電位互相中和’其中n电谷之線；以及 -电0曰體稱接於该些資料在該些儲存電容之第一端的電位互些儲·存電容之第二端輕接之電壓準位。改變邊二如申請專利範圍第25項所述之顯 t:中在改變該些儲存電容之第二端輕接之電壓叶’更匕括同時使該些資料線耦接於接地端。 2Λ如申請專利範圍第26項所述之顯示器之操作方法’八中改變該些儲存電容之第二端輕接之電壓準位是當該輸入·由該第—電壓降低至—第二電壓後進行。 28·如申請專利範圍第乃項所述之顯示器之操作方法’其中改變該些儲存電容之第二端_之電壓準位是在當該輸入碰由該第—電壓降低至_第二電壓後進行。 29·如申請專利範圍第25項所述之顯示器之操作方法’其中該輸人電壓是在雜示!!接㈣__訊號後開始降低，在接收到该關機訊號後與該輸入電麗降低至該第一電壓前，更包括關閉該顯示器的一背光模組。 22 1375202 (。/年（月说修正替換頁The display device of claim 16, wherein the source driving module further has a buffer amplifying circuit coupled between the data signal and the data lines. 'U/' 25. The operation method of the display comprises the steps of: detecting an input voltage of the display; and when the input voltage is reduced to a first voltage, causing a data source of the display and the plurality of data lines Disconnected between and disconnected the data lines from each other; 'After the data lines are coupled to each other', turn on all the pixels of the display 21 1375202 101-5-28 unit to make the secret The potential of the transistor ~ the center of the transistor is neutralized with each other 'the line of n electric valleys; and - the electric body is connected to the potential of the data at the first end of the storage capacitors. The second terminal is connected to the voltage level. Changing the edge 2, as shown in claim 25 of the patent application scope, the voltage of the lightly connected to the second end of the storage capacitors is further included to couple the data lines to the ground. 2. The operation method of the display device as described in claim 26, wherein changing the voltage level of the second terminal of the storage capacitors is when the input is lowered from the first voltage to the second voltage. get on. The operating method of the display of the invention of claim 2, wherein changing the voltage level of the second end of the storage capacitors is after the input is reduced by the first voltage to the second voltage get on. 29. The operating method of the display according to claim 25, wherein the input voltage is reduced after the (!) (4) __ signal is received, and the input signal is reduced after receiving the shutdown signal to Before the first voltage, a backlight module for turning off the display is further included. 22 1375202 (. / year (month said correction replacement page

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