TW384463B - Peripheral circuit for liquid crystal display - Google Patents

Abstract

A kind of liquid crystal display circuit comprising the first image signal driver for the output of the first set of image signals, the second image signal driver for the output of the second set of image signals and the first switching circuit for the switching of two neighboring image signal lines, the second switching circuit for the switching of two neighboring image signal lines. Besides, a discharger coupled between two neighboring image signal lines, for neutralization of the electric charge remaining on two neighboring image signals. A display array coupled to a scanning signal driver is used to display the image in response to the first and the second groups of image signals.

Description

Good Central U: 5. Description of the invention (/ A7 B7-ΙΊ) The present invention relates to the edge circuit of a liquid crystal display (LCD), especially the video signal circuit of a liquid crystal display. Related · 磬 明 ♦ 篑: With the advancement of technology, liquid crystal displays (LCD) have received much attention because they can save a lot of space and provide comfortable high-quality images. Generally speaking, A typical liquid crystal display has a lean circuit structure as shown in the first circle, wherein the liquid crystal display usually includes a liquid crystal display array 100, and the liquid crystal display array 100 includes a plurality of arrays arranged in a matrix. The display device 50 is a switching device coupled to the display device 50 for controlling the transmission of the image signal. The display device 50 includes a transistor 20 as a switching device, and a pixel poor which is moldy by the poor crystal 20. Capacitor (pixel capacitor) 10. In general, the transistor 20 used in the liquid crystal display array 100 is usually a thin-film transisto deposited on a transparent substrate (such as glass). r; TFT). The source electrode of the switching transistor 20 is connected to the electrode of the pixel capacitor i0 to perform the switching function, and the pixel with a pixel capacity of 10 is formed on the same side as the display array 100. On a glass substrate, for a given image signal line, the drain electrodes of all switching heavy crystals 20 located on the image signal line will be connected to the image signal through the image signal line (please read the first Please fill in this page for attention) IP. Order 0Γ. 11 workers. Consumer Cooperative

This paper size applies to China's national standard (CNS) A4 specification (210X297 mm) A7 B7 V. Description of the invention (of) No. / data driver (such as D1, D2, D3, etc. in the first country) . As for all the switching transistors «20 located on the same tracing line, they will be coupled to a scanning signal driver 60 through the tracing line, and the scanning signal actuator 60 will apply a scanning signal to the tracing line. On-line, to switch the electric product 醴 20 to continuity. In addition, by scanning the #drawing edge using the tracing signal, all the switching crystals 20 on the scanning line can be turned on, and then the scanning signal driver 60 can sequentially trace all the # tracing lines. At the same time, the action of applying a signal from the image signal driver to the image signal line is synchronized with the function of the scanning signal driver 60 described above. When the switching transistor «20 of the designated scanning line is selected by the scanning signal, the image signal on the switching transistor 20 will cause the pixel capacitor 10 to be charged relative to the electrical value on the image signal line, so that each pixel and The electrodes located on the opposite two sides of the indicator form a capacitor. When the tracing signal is removed, the charge in the pixel capacitor 10 is still stored until the scanning signal selects the scanning line again and stores a new value. Therefore, through this charge stored in the pixel hail capacity 10, a picture can be formed on the matrix display. ”The central part of the Haoyi Department is only humble and works only for the consumer cooperatives (please read the precautions on the back before filling out this (Page) Please read the second circle to show the image signal (Dl, D2 ...). The voltage applied to the switching transistor 20 is fixed. This switching transistor 20 is used to test the operation of the fan country. The AC signal changes with the polarity change of the image signal. Because the image signal drive circuit is usually driven by an AC signal, the output operating voltage range of this image signal driver (Dl, D2 ...) must be as fixed as the second country. Ten places Illustrated, the power supply voltage range twice Mao surface of a single polarity DC. Therefore, the image signal driver (D1, D2, this paper size is applicable to the Chinese national kneading car (CNS) A you grid (210X297 mm).:. '1 ..:-. ”Machine, 4 *.:.' 1 ..:-. ”Machine, 4 * The central part of the Ministry of Economics, and only the consumer cooperation co-printing Α7 Β7 V. Description of the invention (3) D3 ··.) Should be between + Vn and- Between Vn, instead of DC power supply, Iao Yuan Fan's cabin provides + Vn Yu 0 Fan Yuan. Taking a 256-color color LCD display as an example, in order to provide the image of the Xunlong driver (D1, D2 ...), the operation of the antelope is poor, and its operating voltage must be in the AC signal supply. Down to V2 55 to -V2 56, rather than V255 to V0. Next, please read the third picture A and the third circle B, which are shown as the polarity of the image signal applied to the display element 50. For each image signal «actuator (D1 or D2, ...), The problem of poor operation caused by the above-mentioned exchange signal, the nature of the image signal generated by the display element 50 must be changed between positive and negative voltage. Therefore, the third circle A and the third circle B * respectively show the input image signals applied to this type of display element 50 in two consecutive groups, and when the input image signals are positive polarity, they are displayed. It is “+”. Similarly, when the image signal is negative, it is marked as the odd and even image signal lines shown in the third circle A. The polarity of the image signal is also positive, and in the next group of images When the signal is input, it will become negative polarity at the same time, as shown in the third circle B. Then please go to the fourth circle A and the fourth circle B, the frequency shown in this circle is another odd and even number of image signal lines. The polarity of the image signal is sinking. As shown in the fourth circle, the image signal polarity of the odd line image signal line is positive, and the evenness of the image signal line of the image signal line is negative. In addition, as shown in the fourth circle When the next set of image signals are input into the image signal line, the image signal polarity of the odd-numbered image signal lines is negative, and the image signal polarity of the even-numbered image signal lines is positive. Usually, such as the fourth circle A and the fourth circle The edition of the ultrabook paper shown is suitable for Β »furniture Bong (CNS0 A4 wash grid (210X297 mm) ---------- οII.II ^ -IiT ------ 9 {Please read the note on the back & fill in this page before filling in this page) Μ A7 B7 The sample of the center of the jealousy department is only -T consumer Hezhushe. 5. Inventive description (4) The form of sexual interaction conversion is more commonly used in industrial-manufactured liquid crystal displays. The form of interactively changing the polarity of the video signal is visually more comfortable. The invention of the capsule and the camera: The main purpose of the present invention is to provide a liquid crystal frequency display-a video signal body circuit that reduces power consumption. One purpose is to provide a liquid crystal frequency indicator with an image signal with a relatively low operating voltage level. According to the present invention, by using a switching circuit to switch the image signal received by each line of image signal lines, the image signal can be made. The DC bias of the driver can be reduced to one-half of the original. Second, the circuit of the present invention also uses a discharge circuit coupled between two adjacent image signal lines, before the next image signal is transmitted to the indicator array. Residual charge on the image signal line Neutralization. According to the present invention, the liquid crystal display circuit includes a first image signal driver for outputting a first group of image signals, and a second image signal driver for outputting a second group of image signals. In addition, a response to the first is provided. A control signal for switching a first switching device for two-phase Zheng video signal lines, and a second switching device for switching two adjacent video signal lines in response to the second control signal. A discharge device is coupled to the upper two Photo of Zou Zou Image: This paper scale is applicable to China's national kneading rate (CNS) A4 specification (210X297). I .-------- QI- :! --Iίτ ---! _ 丨 Q- (Please read the notes on the back before filling this page)

V. Description of the invention (5) «to neutralize the residual party charge on the line with the two interesting video messages * and provide an array of monitors in response to the first group of image signals and the second group of image signals. Show the picture by analogy "鼸 蠹 蠹 谗 谗 谗: _ The preferred embodiment of the present invention will be described in more detail in the following explanatory text with the following circles: The first circle is depicted in the conventional technology , Structure circle of liquid crystal display circuit. The second circle depicts the image signal applied to the switching crystal in the conventional technology. The third circle A and the third image B are applied in the conventional technology. Signal polarity structure diagram. The fourth circle A and the fourth circle B are still the polar structure diagrams of the image signals applied to the display elements in the conventional technology. The fifth circle A is a block circle of a liquid crystal display circuit according to the present invention '. The fifth circle B is a detailed structural circle showing a liquid crystal display circuit according to the present invention. The sixth figure is a waveform diagram of a control signal applied to a gold gas half field effect transistor in the liquid crystal display circuit of the present invention. The size of this paper is suitable for Chinese National Kneading < CNS) A4 greeting (2 丨 0X297mm) (锖 Please read the notes on the back before filling this page) Order the central i? .Quasi ^ M.τ.consumption Cooperative cooperative rice A7 __Β7_ V. Description of the invention (6) Refer to «Fifth circle A, which is a functional block diagram of a liquid crystal display (nqUid crystal display; LCD) in the present invention. The edge circuit in the five A song, basically & includes: LCD display array 500, a first switching circuit 510, a second switching circuit 520, a first discharge circuit 530, and a second discharge The circuit 540, the first video signal driver 5 50, the second video signal driver 5 60, and the scan signal driver 5 70. The first switching circuit 510 is coupled to the first video signal hirer 550, and is coupled to the LCD frequency array 500 through the terminal A and the terminal B, and the terminal A and the terminal ft B respectively provide two color image signal lines. Hehe. The first discharge circuit 530 is located between the terminal A and the terminal B. In addition, the second switching circuit 520 is coupled to the second image signal driver 5 60, and is coupled to the LCD-type display array 500 through the terminal A ′ and the terminal B ′, and the second discharge circuit 540 is located at the terminal A ′. With endpoint B '. As for the LCD-type display array 500 controlled by the scanning signal "actuator 5 70", it will receive image signals transmitted from the first image signal driver 550 and the second image signal driver 560. The first switching circuit 510 responds to the control signal Sc to receive the image signal transmitted by the first image signal driver 550, and then transmits the image signal to the LCD display array 500 through the selected endpoint A or endpoint B. Similarly, the second switching circuit 520 will respond to the control signal Sc to receive the image signal transmitted by the second image signal driver 56 0, and then transmit the image signal through the selected endpoint A 'or endpoint B'. To the LCD indicator array (read "Read the note on the back side before filling in this page")

This paper size is applicable to Chinese national standard (CNS) A4 (210X297mm)

Shaoxi Ministry of Industry and Trade Cooperatives «

V. Description of Invention (7) 500. It is worth noting that the action of transmitting an image signal to the LCD-type display array 500 via the first switching point 51 of the switching circuit 51, and transmitting the image via the second switching circuit 520 in accordance with the predetermined point A The operation of the signal to the LCD display array 500 is to perform β at the same time. Then, the second switching circuit 520 of the first switching circuit 520 will simultaneously select the terminal and the β terminal B, and send the next level from the first An image signal of the video camera driver 550 and the second image signal actuator 560 is transmitted to the LCD-type display array 500. In particular, after the previous image signal is transmitted and the next image signal is transmitted to the LCD monitor circuit 500, the first discharge circuit 530 and the second hail release circuit 540 will be turned on to release Residuals remaining on the frequency indicator array 500 "Please refer to the fifth diagram B, which is a detailed description of the circuit in the fifth circle. The structure of the scanning signal driver 570 and the indicator array 500 is the same as the circuit in the first circle. The pixel capacitor 10 and the transistor 20 are used to construct a display element 50, and a plurality of display elements 50 are arranged in rows and columns. The silver array formed constitutes a type of display array 500. In addition, the first switching circuit 510 and the second switching circuit 520 each include a MOS transistor T1 and a MOS transistor T2. Among them, when the MOS transistor T1 is turned on in response to the control signal Scl and the MOS transistor T2 is turned off in response to the control signal Sc2, the first image signal driver 550 and the second image signal driver 5 60 automatically move the image. The signals are input to the odd-numbered image signal lines and the even-numbered image signal lines through the turned-on MOS transistor * I T1 respectively, and the odd-numbered image signal lines are coupled to the endpoint A: ----- 1T ------ ο— (Please read the precautions on the back before filling out this page) This paper is applicable to «National Standards (CNS) A4 Specifications (210X297 mm)

A7 B7 V. Description of the invention (ί) The central government of the Ministry of Economic Affairs has humbled and only eliminated the cooperatives ’home end ft B ',«, and the number of vanadium lines is coupled between the end ft B and the point A' «• Then , 1MOS Dian T2 is turned on in response to the control signal Long Sc2, and MOS transistor ttTl is turned off in response to the control signal Scl to turn the next group of signal herons from the first image vanadium driver 550 and the second image signal driver 560. , Respectively, to the odd-numbered image signal line and the even-numbered image signal line. In addition, the discharge channels 530 and 540 each contain a MOS transistor «T3, and when the MOS transistor« T1 and MOS transistor 艟 T2 are At the moment of turning off, the MOS transistor "IT3" will be turned on in response to the control signal Sc3 to release the charges remaining on the odd-numbered image signal lines and the even-numbered image signal lines on the indicator-like array 500. For the first switching circuit 510, the MOS transistor T1 is coupled between the odd-numbered image signal lines and the first image signal driver 550, and the MOS transistor T2 is coupled to the even-numbered image signal lines and the first image signal. Drive 550. The MOS transistor T3 of the first discharge circuit 530 is coupled between the odd-numbered image signal line and the even-numbered image signal line, and is respectively connected to the first image signal driver 550 via the MOS transistor «T1 and T2. The gates of the MOS transistors T1, T2 and T3 are all coupled to an external control device (not shown in the circle) that controls the state of the MOS transistor. Similarly, for the second switching circuit 520, the MOS transistor T2 is coupled between the odd-numbered image signal line and the second image signal driver 5 60, and the MOS transistor T3 of the second discharge circuit 540 is coupled to the odd number The second image signal driver 560 is connected between the line image signal line and the even line image signal line, and is respectively connected to the second image signal driver 560 through the MOS transistor Q1 and T2. MOS Transistors ΤΙ, Τ2 and Τ3 {Please read the notes on the back before filling in this page} This paper size applies to China National Standard (CNS) Α4 specification (210X297 mm)

The central government of the Ministry of Health and Economics of the People's Republic of China 繁 Λ only works in consumer cooperatives 5. The invention description (?), W 柽, m 鶫, is integrated with the external control device of the state of the M0s electric crystal skull (coming in the circle). Please read the sixth circle, which is shown as a waveform display, which shows the transmission waveform of the video signal of the liquid crystal display of the present invention. Among them, the horizontal synchronization signal (H sync) provided by the compliance inspection scale device (not shown in the circle) will have a horizontal synchronization signal pulse to pass in the state 2. At the same time, the MOS power vessels T1 and T2 are both The M state is closed, and the MOS transistor T3 is in the on state to neutralize the residual charges remaining on the odd-numbered image signal lines and the even-numbered image signal lines. Then, returning to state 1, the MOS transistor II T1 is turned on to transmit the image signals from the first image signal driver 550 to the odd-numbered lines of image signal lines, and the second image signals from the image signal transmission wheel of the actuator 560 To the even-numbered image signal lines, while the t-crystal T2 and the transistor hip T3 are closed. Then, it enters state 2 again, that is, the MOS transistor T1 and T2 are turned off at the same time, and a horizontal synchronization signal pulse is turned on. As for the MOS transistor T3, it is turned on to provide the image signal lines that remain in the odd rows. And the function of the residual charge on the even signal lines. Then 'into state 3, the MOS transistor T2 is turned on to transmit the image signal from the first image signal driver 550 to the even-numbered image signal line, and the image signal from the second image signal "the actuator 5 60" Output to the even-numbered image signal lines, while the MOS transistors T1 and T3 are off. Due to the opposite polarities of the two adjacent image signal lines, the discharge path can neutralize the remaining image lines on the odd-numbered lines and the even-numbered lines of the signal lines. This paper is in standard two countries (GNS) A4 specification (210X297 mm). ). * --------- Q --.-- ^ — ir ------ ο— (Please read the note on the back to save this page and fill in this page.) 好 济 部 中心 +.? : Zhuan Er * A7 B7 made by the Industrial Cooperative Cooperative V. The burden of the invention description (/ 0) to avoid the “latch-up effect” of the display array 500 and reduce the next set of image signal agencies. The required operating ink level. Using the circuit of the present invention can reduce the DC bias * value to one-half of the original bias level. For example, when the supply value of the circuit is 0 to 10 volts, the operation range of each video signal It must be extended from 0 volts to 10 volts to meet the circuit requirements, but according to the present invention, only two video signals of different operating planes are required, such as an image with 0 to 5 volts. The signal "actuator, the other is an image signal body of 5 to 10 volts, because before the next image signal is switched by these two image signal drivers, the charge remaining on the odd image signal line and the even image signal line has been changed by The discharge circuit was neutralized by β. It is particularly noteworthy that the image signals on the same image signal line are sequentially provided by the first and second image signal actuators, and are based on the first and second image signal drivers. The waveform of the image signal must be exchanged with each other before each image signal is input to the indicator array 500 to provide the correct next image signal for each image signal driver. According to the disclosure, the present invention provides the following advantages: For example, the present invention can reduce the power consumption. Because the switching signal is used to switch the image signal received by the display element of each row, the DC bias of the image signal buzzer of the circuit of the present invention The value can be reduced to one-half the original bias level. Secondly, a discharge circuit coupled to two adjacent image signal lines is used to neutralize the charge remaining on the image signal lines before the next image signal is transmitted to the display array 500. From the perspective of traditional know-how, because the two-phase Zheng Ben paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) ----------;-^-ΐτ- ----— ο— (Jing first read the notes on the back and then fill out this page) A7 ______B7 V. Description of the invention (//) The voltage level on the image mirror line can be raised to zero by neutralization As for the next set of image signals, the action of raising to zero level can produce a ** precharge '' action, so this discharge circuit can provide a color image signal line "precharge" '(Precharge) function. In addition, by forming a MOS electromagnet on a glass substrate, the circuit of the present invention can be easily applied to a TFT-LCD of polycrystalline silicon or amorphous silicon. The above are merely preferred embodiments of the present invention, and are not intended to limit the scope of patent application for the present invention; all other equivalent changes or modifications made without departing from the spirit disclosed by the present invention shall be included in the following Within the scope of patent application. 12 This paper size is applicable to China National Standard (CNS) A4 (210X297 mm) --------- ο .--.--; --iT ------ 0T (please first Read the note on the back and fill out this page}

Claims (1)

A8 BS C8 D8 Cooperate with the staff of the Central Government Bureau of the Ministry of Economic Affairs to print the patent application circuit of the country to provide the image signal of the liquid crystal display. The circuit includes at least a switching device, which is used to switch between two-phase video signal lines. Switch between the two; put the party device, coupled between the two Bo-shing image signal lines, to neutralize the charge remaining on the two Hao image signal lines; the indicator array device, in response to the image signal, use Show pictures by category. 2. The circuit according to item 1 of the patent application, wherein the switching device of the above includes at least: a first MOS (metal oxide semiconductor) transistor, which has a gate, a first electrode, and a second electrode. The gate of the MOS transistor responds to the first control signal to switch the «state of the first MOS transistor» and the first electrode of the first MOS transistor is combined with an image signal driver, The second electrode of the first MOS transistor is coupled to the first image signal line of the two-phase Zheng image signal line; and the second MOS (metal oxide semiconductor) transistor has a WJ pole and a first electrode. A second electrode, the gate of the second MOS transistor responds to a second control signal to switch the state of the core of the second MOS transistor, and the first core electrode of the second MOS transistor is coupled to the second electrode The image signal actuator, the second electrode of the second MOS transistor is coupled to the second image signal line of the two-phase sparkle image signal line. 3. If the circuit in the second item of the scope of patent application, the above response to the 13 forest HAJt uses t to return to the cold surface Iϋ ^ (210X297 mm) --f ---- „--- r-- order --- --- JC- (please read the note of the * item before M and fill in this card). TV; the first M0S electric crystal skull of the first control signal of the patent scope applied by the Beige Consumer Cooperative of the Central Government Bureau of the Ministry of Economic Affairs "Only when the second MOS transistor is turned off, and in response to the second control signal. The second MOS transistor«, only when the first MOS transistor is turned off. 4 'As in the circuit of the first patent application, wherein the above-mentioned discharge device includes at least a third MOS transistor, and the third MOS transistor has a closed' and a plurality of reselections, and the third MOS The plurality of electrodes of the transistor are coupled between the two adjacent image signal lines, and the gate of the third MOS transistor responds to the third radio-control signal. 5. The circuit of item 4 in the scope of patent application of the third MOS transistor of the third control signal is turned on when the second MOS transistor is turned off. Among them, the description is in response to the above-mentioned first public (please read the precautions on the back before filling out this page) No. 6. — Liquid crystal display circuit, the circuit at least contains: at least one first image signal driver, At least one second image signal driver for outputting the first group of image signals, for outputting the second group of image signals, the first switching device, in response to the first control signal, for switching between the two-phase image signal lines; The second switching device responds to the second control signal / to switch between the two adjacent image signal lines; the discharge device is coupled between the two adjacent image signal lines to neutralize the residue on the above Charges on two adjacent shadow signal lines; 14 This paper wave scale uses China's national tree rate (CNS > A4 size (2 丨 0X297 mm). 6 The Ministry of Economic Affairs, Central China Kneading Rate Bureau, Shellfish Consumer Cooperative, printed A8 B8 C8, D8 applied for patent range display array device, responding to the first set of image signals and the two sets of image signals to display the screen. The aforementioned _th switching device is coupled to the discharge device, and the first switching device includes at least: a first MOS (metal oxide.semiconductor) transistor, which has a closed electrode, and a first electrode and a second electrode. The gate of the first MOS transistor responds to the first control signal to switch the desired state of the first MOS transistor, and the first electrode of the first MOS transistor includes the first image signal Driver, the second electrode of the first MOS transistor is lightly connected to the first image signal line of the two adjacent image signal lines; and the second MOS (. Metal oxide semiconductor) transistor has a factory gate, First: an electrode and a second electrode, the closed electrode of the second MOS transistor is responsive to a second control signal for / switching the state of the second MOS transistor and the second MOS transistor The first electrode of the book is coupled to the __image > signal, driver, and the second electrode of the second MOS crystal is lightly connected to the second image signal line of the two adjacent image signal lines. 8. Such as The circuit of the scope of patent application item 7, wherein the above response is The first MOS transistor with a control signal is turned on only when the second MOS transistor II is turned off, and the second MOS transistor with a second control signal «only responds to the first MOS transistor. It is turned on when it is closed. 9. If the circuit in the scope of patent application item 7, the above discharge device contains at least a third MOS transistor, and the third MOS transistor has 15 paper standards applicable to the Chinese national standard (CNS ) A4 specification (210X297mm) --------- I ^ ---_--- Order ----- (Read first note ## > item on the back and fill out this page> A8 B8 C8 _____D8_______ Sixth, the scope of patent application is a gate and a plurality of electrodes, and the plurality of electrodes of the third MOS transistor are face-to-face between the aforementioned Qingxiangxiang image signal line, and the third MOS circuit The gate of the crystal responds to the third technology signal. 10. The circuit of item 9 in the scope of patent application, wherein the third MOS transistor in response to the third control signal is turned on only when the first and second MOS transistors are closed, 11 · As claimed in the patent No. 6 circuit, wherein the second switching device i is coupled to the discharge device, and the second permitting device includes at least: a first MOS (metal oxide semiconductor) transistor ||, It has 7 gates, a first electrode and a second electrode, ... the gate of the first MOS transistor is responded to the first control signal, and the wind is switched-the state of the first MOS transistor, and the The first electric pole of the first MOS transistor is coupled to the first image signal driver; the second electrode of the first, MOS transistor is coupled to the first image signal line of the two adjacent image signal lines; And printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling out this page) The second MOS (metal oxide seipicondu-ctor) transistor is thought to have a first electrode and a second electrode Electrode, the gate of the second MOS transistor responds to Second control signal,. For switching «of the second MOS electrically crystalline state! The first electrode of the second MOS transistor is coupled to the first video signal driver, and the second electrode of the second MOS transistor is acoustically coupled to the second video signal line of the two-phase video signal line. 1 2 · If you apply for the circuit of item 11 of the first patent application, where the first MOS transistor responds to the first control signal, only the second MOS weighs 16 This paper size applies Chinese national standards ( CNS) A4 specification (210X297mm) A8 B8 C8 D8, Central Consumers ’Association of the Ministry of Economic Affairs, Consumer Cooperatives, Cooperative Policy A8 B8 C8 D8 VI. Patent application scope Crystal« Conducted when closed, and responds to the second MOS transistor of the second control signal 'On only when the first MOS transistor-艎 is turned off. 13. For the circuit of claim π, in which the above-mentioned discharge device includes at least a third MOS transistor, and the third MOS transistor has a gate electrode and a plurality of electrodes, and the third MOS transistor-crystal male The plurality of electric: acoustically coupled to the above-mentioned two-phase H-image signals ~ lines, and the gate of the third MOS transistor is in response to the third control signal. 14. For the circuit in the 13th scope of the patent application, the third MOS transistor in response to the third control signal described above is turned on only when both the first and second ^ MOS transistors are turned off. 15. For the circuit in the sixth item of the patent application, the clocks of the first and second video signal drivers mentioned above will be exchanged with each other before outputting the first and second video signals. 16. A method for transmitting a color image signal to a monitor array of a liquid crystal display, the method includes at least the following steps: displaying a first image signal on a first image signal line; displaying a second image signal on a second image Signal line; equalizing the voltage level of the first image signal line and the second image signal line "17. If the method of the 16th item of the scope of patent application, including the application of Chinese national standards on the above paper standards (CNS> A4 Specification (210X297mm) Installation \; Order I (Please read the note on the back before filling in this page) A8 B8 C8 D8 Switching between the scope of the first patent application and the second image signal line Step by step, wherein the step of switching is performed by a switching circuit, and the switching I is coupled to the first and second video signal lines. 18. For the method of claim 17 of the patent application park, the above is described in The first step of switching between the first image signal line and the first image signal and the second image signal are shown every time. Switching. 19. For example, the 16th in the scope of patent application Method, which The above-mentioned first image signal is driven by the first image signal actuator, and the second color image signal is driven by the second image signal actuator. 20. For the method of claim 19 in the scope of patent application, wherein The clocks of the first video signal driver and the second video signal driver mentioned above must be exchanged with each other before driving the first video signal and the second video signal each time. ΟΊ J-^ --- 1T ----- (Please read the notes on the back before filling in this page.) Zhong Jibei is printed by Zhengong Consumer Cooperative Co., Ltd. 18 papers * The standard is applicable to China and the Central Government (CNS) A4j ^ (2 丨 0 > < 297 Mm