TWI343038B - Liquid crystal display - Google Patents
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九、發明說明: 【發明所屬之技術領域】 結構本法及其對應之畫素 取訊號的方法。 動忠素、,,。構信號線以傳輸及/或讀 【先前技術】 在現有的觸控型顯# Φ . 硌轰田f P 中,須在顯示器畫素内配置一 ^ * P所謂之讀取線(readout line))來讀取訊 號/信號。請參閱第1圖,i L其係根據習知技術而說明之傳統 5型顯Μ的畫素結構示意圖,其中晝素KT是由-對信 號線m、D2與一對開、線SELE⑶、SELECT2所定義,而 各身料信號即經由信號線⑴、D2而傳送。畫素1G,包含了 顯示用之第-電晶體T1,,其閘極端係與閘線SELECT1電 連接;第-電晶體T1,之源極端係電連接至信號線D1,复 汲極端則與經電容器Cst而與載有偏壓之共通線 C〇]V[M〇Nl電連接。光元件(例如光電晶體ph〇t〇 TFT) 係用於產生光感應訊號,而與其電連接之第二電晶體Nine, invention description: [Technical field to which the invention belongs] Structure this method and its corresponding pixel method of taking signals. Motivation,,,. Constructing a signal line for transmission and/or reading [Prior Art] In the existing touch display type Φ. 硌 田田 f P, it is necessary to configure a ^ * P so-called readout line in the display pixel. ) to read the signal / signal. Please refer to FIG. 1 , which is a schematic diagram of a conventional 5-type pixel structure according to the prior art, wherein the pixel KT is a pair of signal lines m, D2 and a pair of open lines, lines SELE (3), SELECT 2 Defined, and each body signal is transmitted via signal lines (1), D2. The pixel 1G includes a first transistor T1 for display, and the gate terminal is electrically connected to the gate line SELECT1; the source transistor T1 has a source terminal electrically connected to the signal line D1, and the retrace terminal is connected to the signal line D1. The capacitor Cst is electrically connected to a common line C〇]V[M〇N1 carrying a bias voltage. An optical element (eg, a photo-electric crystal ph〇t〇 TFT) is used to generate a photo-sensing signal, and a second transistor electrically connected thereto
Readout TFT係用於控制光感應訊號的讀取;在此例中,第 二電晶體Readout TFT係電連接至一讀取線Readoutl,並可 由閘線SELECT2所提供的問脈衝(gate pUise)控制為開 啟,以使光感應訊號可以經由該讀取線Readout!而傳送。 請參閱第2圖,其係根據習知技術而說明之另一種傳 統觸控型顯示器畫素的等效電路圖(US 2003/0156087)。所 示之光感結構(即畫素)主要包含了與讀取薄膜電晶體 Readout TFT互相連接的一光薄膜電晶體Photo TFT、以及 一電容器,以使這些電晶體與共通線互相連接。此電路係 1343038 以電荷模式(charge mode )進行操作。藉由對閘線SELECT 1 施加一電壓,便可定址由信號線D卜D2與閘線SELECT】、 SELECT2所義之畫素20,,翔啟電㈣錢來自信號 線的電荷流動。同樣的,電晶體Read〇utTFT是由施加在前 一條閘線SELECT2上的閘脈衝加以控制,以控制晝素2〇, 之光感應訊號讀取;電容器Cst2係用於儲存訊號,且這些 電晶體係經其而與共通線C〇MM〇N1互相連接。在這樣的 架構中,為了將產生的光感應訊號傳送至一外部電路進行 處理’晝素2G同樣需要另―條傳送線(即所示之讀取線 Read〇Utl)來專門傳送欲讀取之光感應訊號;讀取線 係電連接至—外部放大器,其放大所傳送的光感 應訊號並進而將職大的訊號輸出傳送至處㈣,以進行 後績的h號確t級處理,藉崎行此_控麵示器的資 料顯示與輸入操作。 、 清參閱第3(a)圖,其係根據習知技術而說明之另一種傳 統觸控f顯衫畫素的等效電路圖。在此射,畫素2〇,是 由互相交錯之第-與第二問線⑺、G2以及第—與第二信 、D2定義而成。另外,在第-與第二信號線D卜 μ,: ί置了一條通過晝素2〇’的讀取線Readoutl ;而在 ^1〇=閘線、⑴、G2之間配置了 '條共通線 ,以電連接晝素2〇,的各信號線。此外,在書辛 =2主要包括_部分,即晝素元件部分,與光元二 ill,, JLP^^5 ’晝素元件部分2G1,包括了光電晶體 ”二° ^連接至第—閘線01,其沒極係連接至第一 \,而、源極係連接至共通線C0MM0N1 ;至於光 兀件部分202,則包衽—。 ^ 望-μ ^ 關電晶體2021,,其閘極係連接至 一甲"’且,、及極與源極係連接至讀取線Readoml。 1343038 ¥ 此外’該光元件部分202’更包括一光電晶體2022,,其閘極 與汲極皆連接至共通線COMMON1,而其源極係與開關電 晶體2021’的汲極連接。The Readout TFT is used to control the reading of the photo-sensing signal; in this example, the second transistor Readout TFT is electrically connected to a read line Readout1 and can be controlled by a gate pUise provided by the gate line SELECT2. Turned on so that the light sensing signal can be transmitted via the read line Readout!. Please refer to Fig. 2, which is an equivalent circuit diagram of another conventional touch display pixel according to the prior art (US 2003/0156087). The light-sensitive structure (i.e., pixel) shown mainly includes a photo film transistor Photo TFT interconnected with the read film transistor Readout TFT, and a capacitor to interconnect the transistors with the common line. This circuit is 1343038 operating in charge mode. By applying a voltage to the gate line SELECT 1, it is possible to address the flow of charge from the signal line by the signal line D Bu D2 and the gate line SELECT], SELECT2, and the pixel 20. Similarly, the transistor Read〇utTFT is controlled by a gate pulse applied to the previous gate line SELECT2 to control the reading of the light sensing signal of the pixel 2, and the capacitor Cst2 is used for storing the signal, and these transistors are used. The system is interconnected with the common line C〇MM〇N1. In such an architecture, in order to transmit the generated photo-sensing signal to an external circuit for processing, the 昼 2G also needs another transmission line (ie, the read line Read 〇 Utl) to specifically transmit the read-to-read. The optical sensing signal; the reading line is electrically connected to the external amplifier, which amplifies the transmitted optical sensing signal and then transmits the signal output of the vocational university to the fourth (4) for the h-th processing of the subsequent performance, This is the data display and input operation of the control panel. For the sake of clarity, refer to Figure 3(a), which is an equivalent circuit diagram of another conventional touch-fitting lens according to the prior art. In this shot, the pixel 2 is defined by the interleaved first-and second-question lines (7), G2, and the first-to-second letter, D2. In addition, in the first and second signal lines D Bu, : ί set a read line Readoutl through the pixel 2 〇 '; and ^1 〇 = gate line, (1), G2 is configured between the 'bar common The line is electrically connected to each signal line of the battery. In addition, in the book Xin = 2 mainly includes the _ part, that is, the halogen element part, and the light element ill, JLP^^5 'the element component part 2G1, including the photoelectric crystal" is connected to the first gate line 01, the non-polar system is connected to the first \, and the source is connected to the common line C0MM0N1; as for the optical element portion 202, the package is -. ^ 望-μ ^ off the transistor 2021, its gate system Connected to the one " and, and the pole and source are connected to the read line Readoml. 1343038 ¥ In addition, the optical element portion 202' further includes a photo transistor 2022, the gate and the drain are connected to The common line is COMMON1, and its source is connected to the drain of the switching transistor 2021'.
上述架構會對影像顯示產生不良影響。請參閱第3(b) 圖,其係根據習知技術而說明上述傳統觸控型顯示器畫素 中的讀取線Readoutl配置示意圖。在此架構中必須另外配 置一條讀取線Readoml以供光感應訊號之傳輸,然所配置 的讀取線Readoutl會佔據顯示器主動區(active area)的一 特疋區域’因而具有此一讀取線Read〇ut丨的畫素的開口率 (aperture rati〇)會與其他的畫素不同(W1<W2 ),如第3(b) 圖所示。而此一開口率差異將使觸控型顯示器產生亮度不 均的缺點。 ★此外,讀取線的配置也容易產生顯示器測試上的缺 ,而降低製程上的產率,因而產生較高的製造成本與顯 示品質較差等缺點。The above architecture will have an adverse effect on the image display. Please refer to FIG. 3(b), which is a schematic diagram showing the configuration of the read line Readout1 in the above conventional touch display monitor according to the prior art. In this architecture, a read line Readoml must be additionally configured for the transmission of the optical sensing signal, but the configured read line Readout1 will occupy a special area of the active area of the display and thus have such a read line. The aperture of the Read〇ut丨 aperture will differ from the other pixels (W1<W2), as shown in Figure 3(b). This difference in aperture ratio will cause the touch display to have the disadvantage of uneven brightness. ★ In addition, the configuration of the read line is also prone to defects in the display test, and the yield on the process is lowered, resulting in disadvantages such as high manufacturing cost and poor display quality.
為了改善上述習知觸控型顯示器的種種缺失,進而提 升其焭度均勻性,發明人經悉心試驗與研究,並一本鍥而 不捨之精神n種難之齡1畫素峨傳輸與讀取 的驅動方法及其對應之畫素結構。 【發明内容】 本發明之第—構想在於提供-種购的晝素結構,於 :二素結構中無航置專_讀取線來進行訊號傳輸及 5札就項取。 二根據本發明之第—構想,該畫素結構包括相鄰之 ;號線與—第二信號線、相鄰之-第-閘線與-第二閘 :曰^於轉Γ閘線與該第二閘線間之—共通線、—第-曰租、-光元件與一第二電晶體。供顯示用之該第—電 7 晶體的第-端與該第—閘線電連接、其第二端與 號線電連接、而其第三端係經由—第—電容^ ^ ^ 該共通線;驗產生光錢喊之元件財 與-第二端’其中第—端電連接至該共通線; 曰 體的第-端係電連接至該第二閘線、其第二端係連接至= 光元件的第二端,而其第三端則電連接至該第二信 以控制光感應訊號之讀取。 根據上述構想,其令該第二信號線之一端係與一信號 驅動器電連接’而其端倾__讀取祕電連接。 根據上述構想,其中該信號驅動器包括一驅動積體電 路與配置於其内之n且該第二信號線係與其電連接。 根據上述構想,其中該讀取電路包括一放大器。 根據上述構想,其中該第二信號線係經由一第一開關 而與該信號驅動器電連接’且該第一開關係製作於顯示器 基板上。 根據上述構想,其中該第二信號線係經由一第二開關 而與該讀取電路電連接。 根據上述構想,其中當該第二信號線經由該第二開關 而與該讀取電路電解耦時,來自該信號驅動器的一資料信 號係經由該第二信號線而傳輸。 根據上述構想,其中當該第二信號線經由該第一開關 而與έ玄#號驅動器電解耦時,該光感應訊號係經由該第二 線傳輸至該Ί胃取電路以供讀取與處理。 根據上述構想,其中該光元件係選自一光電晶體與一 光二極體其中之一。 ' 根據上述構想,其中該共通線係供以一偏壓。 根據上述構想,其中該偏壓係一負電壓。 根據上述構想,其中該顯示器係一觸控型顯示器。 根據上述構想,該畫素結構更包括一第二電容器,其 電連接於該共通線與該光元件之間。 本發明之第二構想在於提供一種顯示器畫素的驅動方 法’特別是指一種觸控行顯示器畫素的驅動方法。該顯示 器畫素包括用於訊號傳輸及/或訊號讀取之至少一信號線、 至少一閘線、用於產生一光感應訊號之光元件、以及與其 電連接之一第一開關;此外,該信號線之一端係與一信號 驅動器電連接。經由所提供之驅動方法,即無須在晝素内 配置專用於訊號傳輸及/或讀取之讀取線。 根據上述構想,該驅動方法包括下列步驟:(a)提供一 第一狀態之控制訊號至該信號驅動器,以電耦合該信號線 與該信號驅動器,藉此,來自該信號驅動器的一資料信號 係經由該信號線而傳入該畫素;以及(b)提供一第二狀態之 控制訊號至該信號驅動器,以電耦合該信號線與一讀取電 路,藉此,該光感應訊號係傳送至該讀取電路以供讀取及 處理。 根據上述構想,其中,當對該信號線供以該第一狀態 之控制訊號時,該信號線係與該讀取電路電解耦。 根據上述構想,其中該第一狀態係一低位狀態(low state)〇 根據上述構想,其中,當對該信號線供以該第二狀態 之控制訊號時,該信號線係與該信號驅動器電解耦。 根據上述構想,其中該第二狀態係一高位狀態(high state)。 1343038 v 根據上述構想,其中該顯示器晝素更包括與其電連接 之二第—開關,且當職第-開縣以與該第二[態之控 制錢相對應的—閘脈衝(gate pulse)時,便傳送該光咸應訊 號。 〜 根據上述構想,其巾當該光感應訊號經由該信號線傳 輸時維持該資料信號。 本案得藉由下列圖式及詳細說明,俾得以令讀者更深 入了解:In order to improve the various kinds of the above-mentioned conventional touch-type displays, and to improve the uniformity of the twist, the inventors have carefully tested and researched, and have a perseverance of the spirit of the n-dimensional 1 画 峨 transmission and reading drive The method and its corresponding pixel structure. SUMMARY OF THE INVENTION The first aspect of the present invention is to provide a seed-purchasing structure, in which: there is no aeronautical special-reading line for signal transmission and five items for item selection. According to a second aspect of the present invention, the pixel structure includes adjacent ones; a number line and a second signal line, an adjacent - a first gate line and a second gate: a switch gate line and the A common line between the second gate lines, a first-thickness, an optical element, and a second transistor. The first end of the first electric crystal for display is electrically connected to the first brake line, the second end thereof is electrically connected to the electric line, and the third end thereof is connected via the first capacitor - ^ ^ The second end of the body is electrically connected to the common line; the first end of the body is electrically connected to the second line, and the second end is connected to the = The second end of the optical element, and the third end thereof is electrically connected to the second signal to control the reading of the photo-sensing signal. According to the above concept, one end of the second signal line is electrically connected to a signal driver and its terminal is connected to the squirrel. According to the above concept, the signal driver includes a drive integrated circuit and n disposed therein and the second signal line is electrically connected thereto. According to the above concept, wherein the read circuit comprises an amplifier. According to the above concept, the second signal line is electrically connected to the signal driver via a first switch and the first open relationship is made on the display substrate. According to the above concept, the second signal line is electrically connected to the read circuit via a second switch. According to the above concept, when the second signal line is electrically coupled to the read circuit via the second switch, a data signal from the signal driver is transmitted via the second signal line. According to the above concept, when the second signal line is electrically coupled to the έ玄# driver via the first switch, the optical sensing signal is transmitted to the Ί gastric extraction circuit via the second line for reading and deal with. According to the above concept, the optical element is selected from one of a photoelectric crystal and a photodiode. According to the above concept, the common line is supplied with a bias voltage. According to the above concept, wherein the bias voltage is a negative voltage. According to the above concept, the display is a touch display. According to the above concept, the pixel structure further includes a second capacitor electrically connected between the common line and the optical element. A second aspect of the present invention is to provide a driving method for a display pixel, which particularly refers to a driving method of a touch line display pixel. The display pixel includes at least one signal line for signal transmission and/or signal reading, at least one gate line, an optical element for generating a photo-sensing signal, and a first switch electrically connected thereto; One end of the signal line is electrically connected to a signal driver. Via the driving method provided, it is not necessary to configure a read line dedicated to signal transmission and/or reading in the pixel. According to the above concept, the driving method comprises the steps of: (a) providing a first state control signal to the signal driver to electrically couple the signal line to the signal driver, whereby a data signal system from the signal driver Transmitting the pixel through the signal line; and (b) providing a second state control signal to the signal driver to electrically couple the signal line to a read circuit, whereby the optical sensing signal is transmitted to The read circuit is for reading and processing. According to the above concept, when the signal line is supplied with the control signal of the first state, the signal line is electrically coupled to the read circuit. According to the above concept, wherein the first state is a low state, according to the above concept, wherein when the control signal of the second state is supplied to the signal line, the signal line is electrolyzed with the signal driver Coupling. According to the above concept, the second state is a high state. 1343038 v According to the above concept, wherein the display element further includes a second switch electrically connected thereto, and when the job-open county has a gate pulse corresponding to the control money of the second state, The light signal should be transmitted. ~ According to the above concept, the towel maintains the data signal when the optical sensing signal is transmitted via the signal line. The following diagrams and detailed explanations can be used to make readers more aware of:
【實施方式】 在本發明令,不需在畫素令另外配置一條專用的讀取 Ϊ1且經由此—新賴晝素的良好設計,運載資料信號的信 號,也可用於傳送欲讀取之喊。基於此—構想,本發明 亦提供了i新穎之顯示器晝素的驅動方法,並以顯示器 晝素之等效電路圖輔以說明如下。 請參閱第4圖,其係根據本發明之第一較佳實施方式 而說明之晝素等效電路圖。[Embodiment] In the present invention, it is not necessary to additionally configure a dedicated reading device 1 in the picture element, and the signal carrying the data signal can also be used to transmit the signal to be read through the good design of the new lyricin. . Based on this concept, the present invention also provides a novel driving method for a display element, which is supplemented by the equivalent circuit diagram of the display element as follows. Referring to Figure 4, there is shown a pixel equivalent circuit diagram in accordance with a first preferred embodiment of the present invention.
、如第4圖所示,畫素40包括第一電晶體T卜其間極端 ^閘線SELECn ’第―電晶體T1的源極端經由 第一電容器Cst而與共通線c〇MM〇N1連接;光電晶體 Photo TFT _於產生—紐應峨,而與其電連接之第二 電晶體Switch TFT則提供對光感應訊號讀取之控制。在此 例中,光電晶體的閛極端與源極端係 CO圓腦,而其汲極端則電連接至第二電晶體;^ TFT。 與傳統之畫素結構不_是’在本發明之畫素結 不需要在畫素40内配置其他讀取線,因此,該第二電晶體As shown in FIG. 4, the pixel 40 includes a first transistor T, and a source terminal of the first gate transistor SELEn 'the first transistor C1 is connected to the common line c〇MM〇N1 via the first capacitor Cst; The crystal Photo TFT _ is generated - the new transistor, and the second transistor Switch TFT electrically connected thereto provides control of reading the optical sensing signal. In this example, the 閛 extreme of the photonic crystal and the source extremity are CO round brain, while the 汲 extreme is electrically connected to the second transistor; Unlike the conventional pixel structure, it is not necessary to arrange other read lines in the pixel 40, and therefore, the second transistor
Switch TFT係電連接至第二信號線〇2,而非連接至一條傳 統的讀取線。該第二信號線D2之—端更經由一開關 D-Switch而電連接至一信號驅動器,而其另一端則經由另 -開關AMP-switeh❼電連接至含有—放大器的讀取電路。 在較佳實施例中,該信號驅動器係由一信號驅動積體電路 Data driver 1C所構成,而該放大器係一電流放大器Currem AMP,且該放大器更與一處理器耦合。 在畫素寫入階段,畫素係因施加之畫素電壓而處於一 寫入電壓位準;該第二信號線D2係被供以一低位狀態之控 制訊號,藉以開啟開關D-Switch,使第二信號線D2能夠運 載來自與其電耦合之外部信號驅動器Data driver 1C的資料 仏號,此時,開關AMP-Switch是處於關閉狀態,因此電流 放大器係與第一k號線D2電解輕,其確保資料寫入程序不 受影響。 ‘ 另一方面,在訊號讀取階段,係對開關D_Switch施加 一高位狀態之控制訊號,藉以關閉開關D-Switch,中斷了 信號驅動器Data driver 1C與第二信號線D2之間的電連 接;此時’開關AMP-Switch是處於開啟狀態,亦即電流放 大器係與第二信號線D2電連接,因此由光電晶體ph〇t〇 TFT所產生的光感應訊號便可經由第二信號線D2傳送至電 流放大器Current AMP進行處理。 此外,經由第二閘線SELECT2對電晶體Switch TFT 万匕加一問脈衝(即所明之έ買取閘脈衝(reacjout gate pulse)) 以進行控制。當閘脈衝具一高位狀態(即高電壓位準)時, Switch TFT即被開啟,使得Ph0t0 TFT所產生之光感應訊號 可經由第二信號線D2而傳送致電流放大器。換言之,當控 制訊號處於高位狀態時’閘脈衝也同樣位於高位狀態,而 1343038 ψ 此時不對畫素施加畫素電壓,且在此時讀取所產生之光感 應訊號。The Switch TFT is electrically connected to the second signal line 〇2 instead of being connected to a conventional read line. The second signal line D2 is electrically connected to a signal driver via a switch D-Switch, and the other end is electrically connected to the read circuit including the amplifier via a further switch AMP-switeh. In a preferred embodiment, the signal driver is comprised of a signal driven integrated circuit, Data driver 1C, which is a current amplifier, Currem AMP, and which is further coupled to a processor. In the pixel writing phase, the pixel is at a write voltage level due to the applied pixel voltage; the second signal line D2 is supplied with a low-level control signal to turn on the switch D-Switch. The second signal line D2 can carry the data nickname from the external signal driver Data driver 1C electrically coupled thereto. At this time, the switch AMP-Switch is in the off state, so the current amplifier is lightly electrolyzed with the first k-th line D2, Make sure the data writer is not affected. On the other hand, in the signal reading phase, a high-level control signal is applied to the switch D_Switch, thereby turning off the switch D-Switch, interrupting the electrical connection between the signal driver Data driver 1C and the second signal line D2; When the switch AMP-Switch is turned on, that is, the current amplifier is electrically connected to the second signal line D2, the light sensing signal generated by the photoelectric crystal ph〇t〇 TFT can be transmitted to the second signal line D2 to The current amplifier Current AMP is processed. In addition, a pulse (ie, a reacjout gate pulse) is applied to the transistor Switch TFT via the second gate line SELECT2 for control. When the gate pulse has a high state (ie, a high voltage level), the Switch TFT is turned on, so that the optical sensing signal generated by the Ph0t0 TFT can be transmitted to the current amplifier via the second signal line D2. In other words, when the control signal is in the high state, the gate pulse is also in the high state, and 1343038 不 does not apply the pixel voltage to the pixel at this time, and the generated light sensing signal is read at this time.
當控制訊號處於高位狀態時,由於開關D-Switch與第 一L號線D2之間的電連接已令斷,因而信號驅動器Data driver 1C會維持住尚未送出的資料信號,直到送入另一個低 位狀態之控制訊號為止,以維持畫素寫入對應的正確電 ,。因此,在較佳的實施方式中,當控制訊號處於高位狀 態時,信號驅動器Data driver 1C係作為維持訊號位準(signal level)之用。 在光感應訊號經由第二信號線D2傳送且被讀取之 後,因送入下一個晝素寫入閘脈衝之故,Switch TFT會再 度開啟。經由Photo TFT與Switch 丁打所輸入之偏^佳 為負電壓,以避免第二信號線D2的電壓位準受到偏廢輸入 的影響。在此财,經由PhotoTFT㈣第二信號線〇2施 力二正,而此時電流並不會被傳送至此狀態之第二信 舰D2’因此不^響其電壓位準。此外,電流放大器When the control signal is in the high state, since the electrical connection between the switch D-Switch and the first L-line D2 has been interrupted, the signal driver Data driver 1C maintains the data signal that has not yet been sent until it is sent to another low position. The status control signal is maintained to maintain the correct power for the pixel write. Therefore, in a preferred embodiment, the signal driver Data driver 1C is used as a signal level when the control signal is in a high state. After the photo-sensing signal is transmitted through the second signal line D2 and is read, the Switch TFT is turned on again due to the feeding of the next pixel write gate pulse. The input voltage through the Photo TFT and the Switch is preferably a negative voltage to prevent the voltage level of the second signal line D2 from being affected by the waste input. In this case, the second signal line 〇2 is applied through the PhotoTFT (4), and the current is not transmitted to the second ship D2' in this state, so that the voltage level is not sounded. In addition, current amplifier
CurrentCurrent
的參考碰最好也囉是卿適#的貞賴,以利電 =ur操作;在較佳實施方式t,所施加 的偏反為-10V,而參考電壓為·5V。 之’需適當選擇對第二獅紐CT所施加 ==線 圖,其說明了在本發明之第—較佳實施:式(中)施:至二) 皮形;當分別與閘線G卜G2、G3、G4的各 Ϊ it ^ G1 03 > 04 ; P本毛明之第—較佳實施方式中的第 線霞T2(如第4圍所示者),而送二:G= 12 衝係由Switch TFT加以調整。 崎=口,,_一段長時間11時’送 剩餘之閘線G1 脈衝P1,其脈衝寬度大於送入 可被八;Y 的脈衝的寬度;此一較寬脈衝P1 以“tr刀’即與喊讀取階段對應之第一部份pi1 示。ϊΐί 對應之第二部分pi2,如第5⑻圖所 行汛號讀取時再度開啟Switch TFT,因 P2/、P2Y,的閘脈衝P2會包括兩個獨立的連續部分 如第圖所-刀別對應至訊號讀取階段與畫素寫入階段, ⑽J 2 i不本發明中,間線的數量係根據實際需求 叮先電晶體的配置密度)而定,在另一個實施方式 『也可以將八條閉線⑴至⑶配置為一組,如 所不。 =參j第6圖’其係根據本㈣之第二較佳實施方式 旦素等效電路圖。在此一實施方式中,信號驅動 益Data driver 1C本身即支援時序控制功能以電連接至第 二信號線D2、或中斷其連接,因而無須在畫針另外配置 開關(如第4圖所示之D_switeh)。或者是,也可將開關 D-switch製作於歸n的基板上、或配置在錢驅動器d恤 driver 1C中,以簡化畫素内部之配置。 明參閱第7圖,其係根據本發明之第三較佳實施方式 而說明之畫素等效電路圖;該畫素主要包括—畫素區域 70 ’其係由相鄰之第-信號線D1與第二信號線〇2、以及 相鄰之第一閘線SELECT1與第二閘線SELECT2定義而 成。在第一與第二閘線SELECT!、SELECT2之間具有一共 通線COMMON1,其一般係供以負偏壓或共通電壓。 如第7圖所示,該畫素包括第一電晶體丁卜其問極端 1343038 連接至第二閘線SELECT2,該第一電晶體1的源極端係連 接至第一信號線D1,其汲極端則經由第一電容器Cst而與 共通線COMMON1連接。光電晶體Photo TFT係用於產生 一光感應訊號’而與其電連接之第二電晶體Switch TFT則 提供對光感應訊號讀取之控制。在此例中,光電晶體ph〇t〇 TFT的閘極端與源極端係電連接至共通線c〇mm〇n卜而 其汲極端則電連接至第二電晶體Switch TFT。第一電晶體 T1與第二電晶體Switch TFT的閘極係電連接至相同的閘 φ 線’即第二閘線SELECT2。除光電晶體Photo TFT外,也 可使用光二極體來作為配置於畫素内、用於產生光感應訊 號之光元件。 〜 同樣的,在此實施方式中,不需要在晝素内配置其他 * 讀取線,因此,該第二電晶體Switch TFT係電連接至第二 彳5號線02 ’而非連接至一條傳統的讀取線。該第二信號線 D。2之一端更經由一開關D-Switch而電連接至一信號驅動 器,而其另一端則經由另一開關AMP-switch而電連接至含 有一放大器的讀取電路。在較佳實施例中,該信號驅動器 擊 係由一k號驅動積體電路Data driver 1C所構成,而該放大 态係一電流放大器Current AMP,且該放大器更與一處理器 1¾合。 此一晝素結構的作用原理係與第4圖至第6圖所示之 本發明第一及第二較佳實施方式相同,因而在此不再加以 贅述。 請參閱第8(a)圖至第8(c)圖,其說明了在本發明之第三 較佳實施方式中施加至畫素的不同閘脈衝波形;當分別與 閘線G卜G2、G3 ' G4的各電晶體·時,_衝即分別 送入閘線G卜G2、G3、G4 ;其中閘線G4即本發明之第三 14 較佳貫施方式中的第二信號線SELECT2 (如第7圖所示 者)。在本例中,送入該閘線G4的閘脈衝係由switch TFT 加以調整。 更具體而言’當開啟Switch TFT -段長時間t2時,送 入閘線G4的脈衝係—較寬脈衝p3 ’其脈衝寬度大於送入 剩餘^閘線G卜G2、G3的脈衝的寬度;此—較寬脈衝p3 可被分為兩部分,即與訊號讀取階段對應之第一部份p31 以及與畫,寫入階段對應之第二部分P32,如第8⑻圖所 示或者疋’在進行訊號讀取時再度開啟Switch TFT,因 而送入閘線G4的閘脈衝P4會包括兩個獨立的連續部分 P4卜P42,其分別對應至訊號讀取階段與畫素寫入階段, 如第8(b)圖所示。在本發明中,閘線的數量係根據實際需求 (例如.光電晶體的配置密度)而定,在另一個實施方式 t,也可以將八條閘線G1至G8配置為一組,如第8(c)圖 所示。 "月參閱第9圖,其係根據本發明之第四較佳實施方式 而說明之畫素等效電路圖;與第7圖所示之實施方式不同 的是,在此一實施方式中,信號驅動器Data driver IC本身 即支援時序控制功能,以電連接至第二信號線D2、或中斷 其連接,因而無須在晝素中另外配置開關(如第4圖所示 之D-switch)。或者疋’也可將開關D-switch製作於顯示器 的基板上、或配置在波驅動Data driver 1C中,以簡化 晝素内部之配置。 由上述說明可知,經由本發明所提供的驅動方法,即 热須在畫素内配置用於資料信號傳輸及/或光感應訊號讀取 之其他讀取線,因而解決了前述之習知觸控型顯示器的缺 失,且明顯改善了顯示器的亮度均勻性。相較於傳統之觸 1343038 癱 ’本發明更具有可提高產率之優勢,因而 的製造成本並提升其顯示品質。因此,本 進步且具《實雜與競爭性之發明,深 然不任施匠思而為諸般修飾, 【圖式簡單說明】The reference touch is also best based on the 适 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , 'The need to properly select the == line diagram applied to the second lion CT, which illustrates the first preferred embodiment of the invention: the formula (middle) applies: to the second) the skin shape; Each of G2, G3, and G4 ^ it ^ G1 03 >04; P Ben Maoming - the first line of the preferred embodiment T2 (as shown in the fourth circumference), and send two: G = 12 rush It is adjusted by the Switch TFT. Saki = mouth,, _ a period of time 11 o's to send the remaining gate line G1 pulse P1, its pulse width is greater than the width of the pulse that can be fed eight; Y; this wider pulse P1 with "tr knife" that is The first part of the pi1 corresponding to the read phase is indicated. ϊΐί corresponds to the second part of pi2, and the switch TFT is turned on again when the apostrophe is read in Figure 5(8). Because P2/, P2Y, the gate pulse P2 will include two The independent continuous part corresponds to the signal reading stage and the pixel writing stage as shown in the figure. (10) J 2 i is not in the invention, the number of the lines is based on the actual demand, and the configuration density of the transistor is based on the actual demand) In another embodiment, it is also possible to configure eight closed lines (1) to (3) as a group, if not. = reference to Fig. 6 is a second preferred embodiment according to the second preferred embodiment of the present invention. In this embodiment, the signal driver data driver 1C itself supports the timing control function to electrically connect to the second signal line D2 or interrupt its connection, so that it is not necessary to additionally configure the switch in the pin (as shown in FIG. 4). Show D_switeh). Or, you can also make the switch D-switch On the substrate of n or in the money driver d-shirt driver 1C, to simplify the arrangement inside the pixel. Referring to Figure 7, it is a pixel equivalent circuit diagram according to the third preferred embodiment of the present invention. The pixel mainly includes a pixel region 70' defined by the adjacent first-signal line D1 and the second signal line 〇2, and the adjacent first gate line SELECT1 and second gate line SELECT2. There is a common line COMMON1 between the first and second gate lines SELECT!, SELECT2, which is generally supplied with a negative bias voltage or a common voltage. As shown in Fig. 7, the pixel includes a first transistor The terminal 1343038 is connected to the second gate line SELECT2, the source terminal of the first transistor 1 is connected to the first signal line D1, and the drain terminal thereof is connected to the common line COMMON1 via the first capacitor Cst. Photoelectric Crystal Photo TFT system The second transistor Switch TFT for generating an optical sensing signal and electrically connected thereto provides control of reading the optical sensing signal. In this example, the gate terminal of the phototransistor ph〇t〇 TFT is electrically connected to the source terminal. Connected to the common line c〇mm〇n Bu and then The terminal is electrically connected to the second transistor Switch TFT. The gates of the first transistor T1 and the second transistor Switch TFT are electrically connected to the same gate φ line, that is, the second gate line SELECT2. Alternatively, an optical diode can be used as the optical element for generating the photo-sensing signal in the pixel. Similarly, in this embodiment, it is not necessary to configure other * reading lines in the pixel, therefore, The second transistor Switch TFT is electrically connected to the second 彳5 line 02' instead of being connected to a conventional read line. The second signal line D. One of the terminals is electrically connected to a signal driver via a switch D-Switch, and the other end is electrically connected to a read circuit including an amplifier via another switch AMP-switch. In the preferred embodiment, the signal driver is formed by a k-drive integrated circuit driver 1C, and the amplified state is a current amplifier, Current AMP, and the amplifier is further coupled to a processor. The principle of operation of this unitary structure is the same as that of the first and second preferred embodiments of the present invention shown in Figs. 4 to 6, and therefore will not be described again. Please refer to FIGS. 8(a) to 8(c), which illustrate different gate pulse waveforms applied to pixels in the third preferred embodiment of the present invention; when respectively associated with gate lines Gb G2, G3 When each transistor of G4 is used, the _rush is respectively sent to the gate line G, G2, G3, and G4; wherein the gate line G4 is the second signal line SELECT2 in the third embodiment of the present invention (e.g. Figure 7). In this example, the gate pulse sent to the gate line G4 is adjusted by the switch TFT. More specifically, when the Switch TFT segment is turned on for a long time t2, the pulse sent to the gate line G4 is wider than the width of the pulse of the wider pulse p3' which is sent to the remaining gate line Gb2, G3; This - the wider pulse p3 can be divided into two parts, that is, the first part p31 corresponding to the signal reading phase and the second part P32 corresponding to the drawing and writing stages, as shown in Fig. 8(8) or 疋' When the signal reading is performed, the Switch TFT is turned on again, and thus the gate pulse P4 sent to the gate line G4 includes two independent continuous portions P4 and P42, which respectively correspond to the signal reading phase and the pixel writing phase, such as the eighth. (b) shown in the figure. In the present invention, the number of gate lines is determined according to actual needs (for example, the arrangement density of the photovoltaic crystal), and in another embodiment t, the eight gate lines G1 to G8 may be configured as a group, such as the eighth. (c) shown in the figure. "Monthly, Fig. 9 is a diagram showing a pixel equivalent circuit diagram according to a fourth preferred embodiment of the present invention; unlike the embodiment shown in Fig. 7, in this embodiment, the signal The driver Data driver IC itself supports the timing control function to electrically connect to the second signal line D2 or interrupt its connection, so that it is not necessary to additionally configure a switch (such as the D-switch shown in FIG. 4) in the pixel. Alternatively, the switch D-switch can be fabricated on the substrate of the display or in the wave drive Data driver 1C to simplify the internal configuration of the pixel. It can be seen from the above description that the driving method provided by the present invention, that is, the heat must be configured with other reading lines for data signal transmission and/or optical sensing signal reading in the pixels, thereby solving the aforementioned conventional touch. The lack of a type of display significantly improves the brightness uniformity of the display. Compared with the conventional touch 1343038 瘫 ', the invention has the advantage of improving the yield, thus the manufacturing cost and the display quality thereof. Therefore, this advancement and the invention of "complex and competitive" are not modified by the ingenuity, and the description is simple.
查第1圖^系根據習知技術而說明之傳統觸控型顯示器的 旦素結構7ft思圖, 示器二知技術而說明之另一種傳統觸控型 第3⑷圖係根據習知技術而說明之另一種傳統觸控型 顯示器畫素的等效電路圖; 第3(b)圖係根據習知技術而說明上述傳統觸控型顯示 盗畫素中的讀取線Readoutl配置示意圖; 第4圖係根據本發明之第一較佳實施方式而說明之晝 素等效電路圖; 11 is a diagram of a conventional touch-type display according to the prior art, and a conventional touch-type 3 (4) diagram is illustrated according to the prior art. The equivalent circuit diagram of another conventional touch-type display pixel; FIG. 3(b) is a schematic diagram showing the configuration of the read line Readout1 in the above-mentioned conventional touch-type display pirate according to the prior art; A halogen equivalent circuit diagram according to a first preferred embodiment of the present invention;
控型顯示器而言 能夠降低顯示器 案實為一新穎、 具發展價值。 第5(a)圖至第5(c)圖,其說明了在本發明之第一較佳實 施方式中施加至畫素的不同閘脈衝波形; 、 第6圖係根據本發明之第二較佳實施方式而說明之畫 素等效電路圖; & 第7圖係根據本發明之第三較佳實施方式而說明之畫 素等效電路圖; — 第8(a)圖至第8(c)圖’其說明了在本發明之第三較佳實 知方式中施加至畫素的不同閘脈衝波形;以及 第9圖係根據本發明之第四較佳實施方式而說明之畫 16 1343038In the case of a controlled display, the ability to reduce the display is a novel and developmental value. 5(a) to 5(c), which illustrate different gate pulse waveforms applied to pixels in the first preferred embodiment of the present invention; and FIG. 6 is a second comparison according to the present invention A pixel equivalent circuit diagram of a preferred embodiment; & Figure 7 is a pixel equivalent circuit diagram according to a third preferred embodiment of the present invention; - 8(a) to 8(c) Figure 2 illustrates different gate pulse waveforms applied to pixels in a third preferred embodiment of the present invention; and Figure 9 illustrates a picture 13 1343038 in accordance with a fourth preferred embodiment of the present invention.
素等效電路圖。 【主要元件符號說明】 10, 、 20, 晝素 201’ 畫素元件部分 202’ 光元件部分 2011’ 、 2021’ 、 2022’ 電晶體 Dl ' D2 信號線 SELECT 1 > SELECT2 ' G1-G8 閘線 ΤΓ、Photo TFT、Readout TFT 電晶體 COMMON 1 共通線 Cst 電容器 Readout 1 讀取線 40 畫素 D-Switch ' AMP-Switch 開關 Current AMP 電流放大益 Data driver IC 信號驅動器 tl > t2 開啟時間 P1-P4、Pll、P2卜 P22、 P31、P32、P41、P42 脈衝Prime equivalent circuit diagram. [Main component symbol description] 10, 20, 201素201' pixel component part 202' optical component part 2011', 2021', 2022' transistor Dl ' D2 signal line SELECT 1 > SELECT2 ' G1-G8 gate line ΤΓ, Photo TFT, Readout TFT Transistor COMMON 1 Common Line Cst Capacitor Readout 1 Read Line 40 Pixel D-Switch ' AMP-Switch Switch Current AMP Current Amplifier Data Driver IC Signal Driver tl > t2 On Time P1-P4 , Pll, P2, P22, P31, P32, P41, P42 pulses
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