TW200947395A - Driving circuit of pixel cell and method thereof - Google Patents

Abstract

A driving circuit of a pixel unit is provided. The pixel unit includes a first writable switch, a second writable switch, a first storage unit, a second storage unit, a first display switch, a second display switch and a pixel electrode. The first and the second storage units respectively receives a first pixel signal and a second pixel signal through the first and the second writable switches, wherein the conductivities of the first and the second writable switches is controlled by a scan control signal. The first display switch is coupled between the first storage unit and the pixel electrode. The second display switch is coupled between the second storage unit and the pixel electrode. During a frame period, the first and the second pixel signals respectively stored in the first and the second storage units are sequentially transmitted to the pixel electrode by switching the first display switch and the second display switch to display the corresponding pixel image. Thus, the frame rate is increased efficiently without an additional frame buffer to store the pixel signals.

Description

200947395 ηι^-^,υυ/-t/024-TW 25644twf.doc/n IX. Description of the invention: [Technical field to which the invention pertains] and particularly relates to a halogen. The invention relates to a halogen unit, a unit driven Circuit and its driving method. [Prior Art]

The driving method of the liquid crystal display is to control the rotation angle of the liquid crystal by changing the pressure of the liquid hoist, and then the two ends of the crystal layer of the light are coupled to the pixel electrode and the common electrode respectively, and the pixel electrode is °. The liquid pressure changes with the halogen signal, and the common electrode is coupled with 'voltage= applied to the electric field direction of the liquid crystal layer. The driving method of the liquid crystal display can be positive polarity driving and negative polarity driving. When the voltage of the halogen electrode is higher than the common S voltage, it is called positive polarity driving, and when the voltage of the halogen electrode is higher than the common voltage, it is called negative polarity driving. Applying the same voltage difference in different electric field directions to both ends of the liquid crystal layer does not affect the transmittance of the liquid crystal. If the direction of the electric field applied to the liquid crystal layer is always positive or constant, the liquid crystal quality is deteriorated over a long period of time and cannot be smoothly rotated in response to the electric field change. This phenomenon is called liquid crystal polarization. In order to avoid the phenomenon of liquid crystal polarization, it is necessary to alternately use voltages of different polarities to drive the liquid crystal at different times, that is, to drive in a "polarity inversion" manner. The general polarity inversion methods include frame inversion, dot inversion, and line inversion. For the frame inversion, the liquid crystals of the pixel array are driven with the same polarity voltage during the same kneading period, and the liquid crystals of the pixel array are driven with voltages of different polarities during the two consecutive kneading periods. Due to the polarity reversal of 200947395 1 w / - v〇24-TW 25644twf.doc/n The conversion time is in the unit of the kneading system, so the driving of the frame inversion is to save power and the __ belt type is light. For example: Dun or Personal Digital Assistant (PDA). However, when the driving voltage of the polarity inversion is asymmetrical or the switching speed is not fast enough, the person will notice the flickering of the face. In order to solve the above problem, a frame buffer is generally used to reduce the storage of the pixel signal to increase the picture rate, but the manufacturing cost of the liquid crystal display is relatively increased.发明 ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ ❹ Transfer to the halogen electrode to display the pixel data. In this way, an additional frame buffer is not needed to store the pixel signal, thereby effectively increasing the frame rate and avoiding flickering of the picture. The present invention provides a driving circuit for a halogen element, comprising a second and second writable switch, first and second storage units, first and second displayable=off and pixel electrodes. The control terminals of the first and second writable switch receive the seven-drawing control signal. The first ends of the first and second writable switches are respectively coupled to the second data line, and the first and second writable The second end of the human switch is respectively connected to the second end secret reference voltage of the first and second storage sheets (four) mth and second storage sheets. The first and second storage units receive the first and second pixel signals via the first and second writable switches, respectively. The control ends of the first and second displayable switches respectively receive the first ends of the first and second display control signals, and the first ends of the second and second displayable switches are respectively connected to the first ends of the first and second storage units, and The second and second displayable switches of the second l/024-TW 25644twf.doc/n 200947395 are connected to the halogen electrodes. The pixel electrodes receive the first and second pixel signals respectively via the first and second display switches. From another point of view, the present invention provides a driving unit control signal of the pixel unit, which transmits the first picture from the first data line and then follows the display control signal, and the image is displayed in the picture period. The second storage unit is coupled to the pixel electrode to display the first-halogen signal and the second pixel signal. The driving circuit of the second element, including the first, the second, the second, the second, the third and the third storage unit and the control of the ::: two: the second end of the ί Wei line: the first -, the first The second and third terminals of the first, second and second switches are respectively divided into the ==-ends of the third storage unit, and the first, second and storage units respectively === can be: -, second and The third batch of the second and third halogen signals. The first, the first and the ί switch are connected to the first:, can display the off signal, the first -, the first end of the storage of the early element - the second and the second power of the second day of the day 4 switches are received respectively The first, second, and uth fine _ storage units to store private _^^ number signal through 200947395 nu-zw / -v024-TW 25644twf.doc/n

After switching the display switch, the different pixel signals are sequentially transmitted to the pixel electrodes to display the corresponding pixel data. The invention is to be driven by the polarity inversion driving circuit, and the different pixel signals are A pixel signal of opposite polarity. Therefore, 'in the same-昼 surface period _ can display the pixel signals of different polarities' to increase the frame rate of the age and reduce the probability of occurrence of the picture. The invention can also be applied to a driving circuit of a color sequential method, wherein the different pixel signals are unambiguous pixel signals, whereby different color halogen signals are sequentially transmitted to the pixel electrodes during the same picture period. The above described features and advantages of the present invention will become more apparent from the following description. [Embodiment] FIG. 1 is a circuit diagram of a driving circuit of a pixel unit according to an embodiment of the present invention. Referring to Fig. 1, the driving circuit 11 of the pixel unit includes writable switches T11 to T12, displayable switches S11 to S12, memory cells cn"ci/f, switches RS1, and pixel electrodes pi. The liquid crystal layer is represented by a liquid crystal capacitor CLC, and both ends of the liquid crystal capacitor CLC are coupled to the pixel electrode Pi and the common electrode C0M, respectively. In this embodiment, the writeable switches T11 to T12, the displayable switches sn to S12 and the reset switch RS1, for example, or other semiconductors, and the storage units C11 to Cl2, for example: the first of the two switches The terminal end and the second end tap the data line and store the first end of the early C11 and the control terminal of the writeable switch Tu receives the scan control signal Scan1 to control the writable switch. The first end of the writable person switch T12 and the second end of the joint support = 200947395, ^-^w, -v〇24-TW 25644twf.doc/n 'and can be written to the control of the switch T12' to control writable The input switch T12 is coupled to the reference voltage D12 of the second end of the Cl2 and the first end of the storage unit C12 to receive the scan control signal Scanl. Wherein, the storage unit C11~VREF 〇 can display the first end of the switch S11; 5坌_

Cli ^ B _ knows that the first end is coupled to the first end of the storage unit and the halogen electrode, and the control end of the display switch S11 receives the display #·#bHl to (4)

It can be displayed that the first end of the switch S12 and the first _: 疋 No conduction & 筮鳊 and 鳊 鳊 are coupled to the storage unit C12 =:: and the halogen electrode Pi ' and can display the control terminal of the switch su The signal F12 is not controlled to control whether the display switch S12 is turned on. The first terminal and the second terminal of the reset switch RS1 are connected to the pixel electrode pi and the reset voltage VRST1. The control terminal of the reset RS1 receives the reset signal RST1 to control whether the reset switch RS1 is turned on. For the polarity inversion driving method, each pixel unit must be alternately driven with voltages of different polarities at different times to avoid the phenomenon of liquid crystal polarization, for example, driving voltages with opposite positive and negative polarities during different periods. The parent applies the halogen unit to the ground. The driving voltage of the opposite polarity is usually switched in units of one picture period. For example, during the current picture period, the pixel unit is driven with a positive polarity voltage, and the pixel unit is driven with a negative polarity voltage during the next picture period. The operation of this embodiment will be described below in conjunction with a timing chart to realize a polarity inversion driving of a high frame rate. Fig. 2 is a timing chart showing the driving circuit of the pixel unit of Fig. 1 according to an embodiment of the present invention. For convenience of description, the positive polarity and negative polarity pixel signals received by the halogen electrode Pi in Fig. 2 are represented by +V and one V, respectively. Please refer to Figure 1 9 200947395 HU-zuu/-u024-TW 25644twf.doc/n when the corresponding panel is swept-sweep, so that the writable switches τη and τ12 are turned on. = off = sex Γ Γ + ν via (4) The feed line D11 and the turn-on can be written into the switch T11 and stored in the storage unit cu. The second word-V is transposed by the data line D12 and the switchable switch is negative two ❹ C12. When sufficient storage time has elapsed, the scan control domain Sc+anl is deactivated, so that the writable switches T11 and T12 are not turned on. During the kneading period P21, the control signals FU and F12 are displayed to respectively control the displayable sn and sn to sequentially transmit the different polarity numbers to the pixel electrode pi. For example, when the display control money Flm can be turned on, the display unit S11 can be turned on, and the storage unit CH stores the fine 正 昼 钱 + + + v to the pixel electrode. When the display control signal D = the switch S12 is turned on, the negative polarity element signal - V _ stored in the storage unit (2) is transmitted to the pixel electrode Pi by the conductive display _S12. In order to avoid the residual charge of the liquid crystal capacitor CLC, the display of the surface is not correct. For example, the residual image of the picture, so before the switch can be displayed, the S12 is turned on, the reset signal RST1 is enabled first, so that the reset switch is enabled. RS1 is turned on to reset the pixel electrode Pi. In this embodiment, the reset action is to couple the pixel electrode Pi to the reset voltage VRST. In short, in the present embodiment, when the scan control signal Scan1 corresponding to one of the scan lines is enabled, the positive and negative pixel signals are stored in the storage units α1 and C12, respectively. Then, according to the display control signals ριι 2〇〇947395〇24.tw __ and F12 'in one screen period, the displayable switches si 1 and S12 are sequentially turned on to store the positive and negative poles of the storage units C11 and C12 respectively. The sex pixel is number is transmitted to the pixel electrode Pi. Therefore, in the same picture period, the pixel electrode Pi can sequentially reflect the positive and negative polar element signals, thereby increasing the frame rate and reducing the influence of the facet flicker. ❹ According to the teachings of the above embodiments, the driving circuit n〇 of the pixel unit can also be applied to the driving circuit of the color sequential (c〇l〇rseqUential) method. The color sequential method is mainly driven by switching the image planes of different colors on the time axis in a time range of the persistence of the human eye to generate a color mixture. Referring to FIG. 1 and FIG. 2, when the scan control signal Scan1 is enabled, the first color pixel signal and the second color pixel signal are stored in the storage units cu and C12 via the data lines D11 and D12, respectively. Then, during the same-picture period, the display control signals F11 and F12 are sequentially enabled, thereby transmitting the halogen signals of different colors to the pixel electrodes. By switching between sn and S12, it is possible to switch between displaying images of different colors. - Further, the driving circuit 110 of the pixel unit can simultaneously drive the two-color sequential order and the polarity inversion_. Newton says that when the scan control signal is enabled, the second polarity of the signal is transmitted through the 昼 ί and (1) storage. Then, during the same-picture period, the control of the transmissive signals FU and F12 sequentially stores: ♦ the stored pixel signals are transmitted to the pixel electrodes 1^. In addition, when the "^" is enabled again during the next period, the unit is driven by the standard method. 11 200947395 -------JU24-TW 25644twf.doc/n - In general, the color sequential drive method requires three colors to combine the full color, such as red, green and blue. The present invention can be easily implemented by those skilled in the art in light of the teachings of the embodiments of the present invention. Fig. 3 is a circuit diagram of a driving circuit of a pixel unit in accordance with an embodiment of the present invention. Referring to Fig. 3, the dynamic circuit 300 includes writable_C31 to C33, displayable switches S31 to S33, a reset switch off, and a pixel Pi electrode Pi. Here, the writable switches T31 to T33, the displayable switch S3, and the reset switch RS3 are, for example, transistors or other semiconductor switching devices. The storage units C31 to C33 are, for example, capacitors. The control terminals of the writable switches T31 to T33 receive the scan control signal SCan3 to determine whether or not to turn on according to the scan control signal Scan3. As shown in the figure, the first end and the second end of the writable switches T31 to T33 respectively receive the data lines D31 to D33 and the first ends of the storage units C31 to (3). The second end of the storage list 7G C31~C33 is coupled to the reference voltage VREF. The control terminals of the displayable switches S31 to S33 receive the display control signals F31 to F33, respectively, to determine whether or not to turn on according to the display control ##31 to F33. The first ends of the display switches S31-S33 are respectively coupled to the first ends of the storage units C31-C33, and the second ends of the switches S31-S33 are coupled to the pixel electrodes, and the first ends of the RS3 are reset. The terminal and the second end are respectively coupled to the pixel electrode pi and the reset voltage VRST', and the control terminal of the reset switch RS3 receives the reset signal rst3 to control whether the reset switch RS3 is turned on. 4 is a timing diagram of a driving circuit of the pixel unit of FIG. 3 according to an embodiment of the present invention. Please refer to FIG. 3 and FIG. 4 . For convenience of description, the positive and negative polar signal of the pixel 12 J024-TW 25644 twf.doc/n 200947395 图 in Fig. 3 are respectively on the + and - blue color letters. It is: the scan line of the scan line is divided into 21 Α, t is inserted into the switch T31 and stored in the storage unit ❹ 、 m, the raw green picture money - V2 is stored in the storage unit C32 via the data line dm and the # switch T32, and the positive electrode ;: ^丹素域+ V3 via data line such as == 元元C33. Then, during the kneading period = the notification control money stamp 32 is sequentially enabled = transmitted to the pixel _Pi. Therefore, the elemental reaction of the positive red pigment signal cap 2

r ^ halogen signal -V2 and positive blue halogen signal +V3,3 color sequential drive and polarity inversion drive. I Caitong^push, money drawing _ 靡 3 3 在 — — — — — — — — — — 画面 ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' T T T T T T T T T T T T T T T T The blue pixels are stored in the storage units C31 to C33, respectively. Next, in drawing 442, the scanning control signal 丨~F32 is sequentially enabled, so that the switches/switches S31 to S33 are sequentially turned on. In this way, the 'electron electrode sensation will sequentially reflect the positive red pixel signal - v 负 negative green 昼 信号 signal + V2 and positive blue 昼 信号 signal - V3 in the book: period P42. In the present example, the reset signal RST3 is enabled before the displayable switches S31 to S33 are turned on, and the reset switch RS3 is turned on to reset the pixels. Electrode Pi. It is worth noting that the color sequence drive is to quickly switch the image images of different colors on the time axis to achieve the effect of color mixing. Therefore, the order of display of red, green and blue pixel signals is not limited. In addition, in the embodiment of FIG. 3, for the same data line, the halogen signals of different polarities need to be transmitted separately during the two consecutive frames, for example: +V1 and -V. Therefore, another implementation of the invention is in the present invention. For example, the front end of the driving circuit 300 of the pixel unit may be coupled to a frame rate converter to transmit pixel signals of different polarities to the data line during different clamping periods. & In order to effectively increase the frame rate and save the manufacturing cost of the frame rate converter, an embodiment will be described below. Figure 5 is a circuit diagram of a driving circuit of a pixel unit of one embodiment of the present invention. Referring to FIG. 5, the driving circuit 500 of the pixel unit includes sub-driving units 51, 52, and 530, a reset switch RS5, and a pixel electrode. Each of the sub-driving units 510, 520, and 530 includes a writable switch T51 to T52. The switches © S51~S52 and the storage units C51~C52' can be displayed, and each of the sub-drive units 51〇, 520 and 530 transmits the pixel signals through the corresponding two data lines, that is, D51~D52, D53~D54 and D55. ~D56. Wherein, the coupling relationship of each component in each of the sub-driver stars=10, 520, and 530 is the same as that of the driving circuit 11〇 of the pixel unit in the embodiment (except the reset switch RS1), so Repeat them. In addition, the displayable switches S51 and S52 in the sub-drive unit 510 are controlled by the display control signals F51 and F52, respectively, and the displayable switches S51 and S52 in the sub-drive unit 520 are respectively controlled by the display control signal 200947395.

j〇24-TW 25644tw£doc/n F53 and F54' and displayable_s and s52 in sub-drive unit 53A are controlled by display control signals F55 and F56, respectively. For the sub-driving unit 510, when the scan control signal 8 enables the writeable off T51 to T2 to be turned on, the 'positive red pixel signal and the negative red pixel signal are respectively passed through the data lines D5 and D52. Stored in sub-driver, unit_storage unit (3) and (3). Simultaneously, for the sub-driving units 520 and 530, the positive green pixel signal and the negative green color pixel number are stored in the memory cells C51 and C52 in the sub-drive unit 520 via the data lines D53 and D54, respectively. The positive blue blue pixel signal and the negative blue blue halogen signal are also stored in the storage units C51 and C52 in the sub-drive unit 530 via the data lines D55 and 〇56, respectively. Therefore, when the scan control nickname Scan5 is enabled, the positive and negative polarity color elements can be respectively stored in the storage unit C51 in each sub-drive unit and then, during a kneading period, the scan control signals F51 to F56 can be The sequence is enabled to turn on the corresponding displayable switch, and then the positive and negative polarities of the various color halogen signals are transmitted to the halogen electrode Pi. That is to say, during the same © surface, the elemental electrode can sequentially reflect the positive red halogen signal, the negative red halogen signal, the positive green halogen signal 'negative green halogen signal, positive polarity Blue halogen signal and negative blue halogen signal. Here, it is not limited to the order in which the above pixel signals are displayed. In the present embodiment, the reset signal RST5 is enabled before the displayable switches S51 and S52 in each sub-drive unit are turned on to reset the pixel electrode Pi. The driving circuit 3 of the pixel unit of the embodiment adopts a color sequential driving and a polarity inversion driving mode, and transmits the storage unit in each sub driving unit 15 200947395

iu24-TW 25644twf.doc/n C51 and C52 are used to store positive and negative polar colors. Therefore, it is only necessary to switch the displayable switches S51 and S52 in each sub-drive unit to effectively increase the frame rate. An additional frame rate converter is used to control the 昼素"is said to be transferred to the data line during different screens. In addition, since the various color pixel signals of the positive and negative polarities have been stored in the storage units C51 & C52 in each sub-drive unit, another embodiment of the present invention may enable a partial scan control signal F51 during one facet period. ~F56 ❹ Enable sequentially, for example: F51, F54 and F55. Therefore, during the same kneading period, the halogen electrode Pi can sequentially react the positive red 昼 信 &&, the negative green 昼 信号 signal and the positive blue 昼 。 signal. During the picture, another portion of the scan control signals F51 to F56 can be sequentially enabled 'e.g., F52, F53, and F56. Therefore, during the same picture period, the pixel electrode Pi sequentially responds to the negative red pixel signal, the positive polarity color signal, and the negative blue color element. As described above, in the above-described embodiment, the pixel signals of different polarities are stored in the storage units (3) and C12, respectively, during the switching of the switchable switches ΤΙ 1 and T12. Then, during the same picture period, the pixel signals of different polarities are sequentially transmitted to the pixel electrode Pi through the switchable display switches S11 and S22 to achieve a high frame rate & In addition, in the embodiment of Fig. 1, the memory cells C11 and C12 can be used to store the pixel signals of different colors, and then the color switches can be driven by the display switches su and S22. Since the color sequential driving is usually to switch the display of three colors of red, green and blue, the embodiment of Fig. 3 proposes a crane circuit having three storage units 16 v24-TW 25644twf, doc/n ❹ ❹ 200947395. When Le (four) money Sean3 is enabled during the - surface, the positive and negative polarity alternate red; ^: face" are stored in the storage unit C31 ~ C33 respectively · The color of the color display switch S31 ~ S33 switch, then ° - During the transmission of the available pixel signal to the book sin electrode pi, where the Κ 33 is stored during the period of the f picture, a color pixel letter opposite to the polarity of the upper surface is stored in the storage unit (3) ~(3). During the same period, the pixel signal that can be displayed by the display switch S31~S3 is stored in the ^ρΓ=example 5, when the scan control signal Scan5 is in the picture period, simultaneously The various color pixel signals of different polarities are transmitted to the storage units C51 and (3) of each sub-drive unit. Therefore, the port needs to be switched through the displayable switches in each sub-drive unit, such as loose switching, and the color sequence crane and polarity inversion driving can be performed, and the frame rate of the display can be determined. The above embodiment does not require an additional frame buffer to store the switching of the pixel suffix S=? switch to increase the frame rate to avoid inter-picture. Although the present invention has been disclosed in the preferred embodiment as above, it is not used. The scope of the present invention is defined by the scope of the appended claims, which is defined by the scope of the appended claims. Subject to it. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a circuit diagram of a driving circuit of a pixel unit according to an embodiment of the present invention. 17 200947395

u24-TW 25644twf.doc/n Figure. Fig. 2 is a timing chart showing the driving circuit of the pixel unit of Fig. 1 according to an embodiment of the present invention. Fig. 3 is a circuit diagram of a driving circuit of a pixel unit according to an embodiment of the present invention. 4 is a timing diagram of a driving circuit of the pixel unit of FIG. 3 according to an embodiment of the present invention.

FIG. 5 is a circuit diagram of a driving circuit of a pixel unit according to an embodiment of the present invention. [Main component symbol description] 110, 300, 500 · Driving circuit 510, 520, 530 of a pixel unit: sub-driving units T11 to T12, T31 ~T33, T51~T52: Writeable switches S11~S12, S31~33, S51~S52: Displayable switches RSI, RS3, RS5: Reset switches C11~C12, C31~C33, C51~C52: Storage unit〇 CLC: Liquid crystal capacitor

Pi: Alizarin electrode COM: Common electrode VREF: Reference voltage VRST: Reset voltage D11 to D12, D31 to D33, D51 to D56: Data line Scanl, Scan3, Scan5: Scan control signals F11 to F12, F31 to F32, F51 ~F56 : Display control signals RST1, RST3, RST5: reset signal 18

Claims (1)

v24-TW 25644twf.doc/n 200947395 X. Application for patents: h A drive circuit for a halogen unit, including: its first two open: material: control terminal receive-scan control signal, the fourth (four) difficult to find (four) (four) a first storage unit, the first end of which is coupled to the first writable ❹ Si first; the end consuming - the reference voltage, wherein the first lung, the second 9-writable switch is received - the first 昼Signal; second: ΐΠΓ 第 - she is connected to the second writable switch: talk about the first I:: the reference voltage 'where the second storage unit "a", into the switch to receive - the second element Signal; No. 2 switch, the control terminal receives the first-display control signal, the first p-鳊 is coupled to the first end of the first storage unit; the number switch, the control terminal receives the second display control signal The first end of the second storage unit is coupled to the second storage unit; and the second end of the first displayable switch and the first end of the first display switch are connected to the first end of the second display unit. The switch can display the fine-defective signal and the 2. as described in the first paragraph of the patent application. The circuit further includes: - a reset switch 'its control terminal receives - a reset signal, which is connected to the second end of the first displayable_ and the second end of the second displayable display 'the second end _- The reset voltage is used to reset the pixel electrode before the second display switch is turned on by the first display switch i 19 200947395 fv24-TW 25644twf.doc/n. 3. The driving circuit of claim 1, wherein the first pixel and the second pixel signal are a positive polarity and a negative polarity pixel signal, respectively. 4. The driving circuit of claim 1, wherein the first pixel signal and the second pixel signal are respectively a first color and a second color. Q. The driving circuit of claim 4, wherein the first pixel signal and the second pixel signal are a positive polarity and a negative polarity pixel signal, respectively. 6. The driving method of the pixel unit, comprising: transmitting a first pixel signal from a first data line to a first storage unit according to a scan control signal, and transmitting a second from a second data line The first storage unit and the second storage unit are electrically connected to a single pixel electrode during a screen to display the first 昼 according to a display control signal. The signal and the second halogen signal. 7. The driving method of claim 6, further comprising: electrically connecting the pixel electrode to a reset voltage to reset the display control signal before the display control signal is enabled according to a reset signal Pixel electrode. 8. The driving method of claim 6, wherein the first halogen signal and the second halogen signal are a positive polarity and a negative polarity pixel signal, respectively. 9_ The driving method according to claim 6, wherein the 20th 200947395., 24-TW 25644twf.doc/n pixel signal and the second pixel signal are respectively a color and a color The halogen signal. 〆10. The driving method according to claim 9 of the patent application, wherein the == and the second pixel signal are respectively - a positive polarity and a negative electrode 11. A driving circuit of a pixel unit, comprising: "Trick control signal, the first material: the control terminal receives the scan control signal, the first f terminal receives the scan control signal, and the second end is connected to the write switch _ί: receives by switch ♦ The second end of the memory unit is 'the first one is connected through it;;: is received by the switch - the second picture f element: the end... the redundant write: the off switch is received - the third unit C the first storage unit The fourth end of the signal display_the second end of the second display control letter 21 λ/24-TW 25644twf.doc/n 200947395, the first end of which is coupled to the first end of the second storage unit; a second display switch, the control terminal receiving a third display control signal, the first end of which is coupled to the first end of the third storage unit; and the first pixel electrode coupled to the second display switch a second end of the first displayable switch and a second end of the third display switch - the first day through the surface of benzoin - off may be displayed, the second display ❹ ❹ and the second switch may be significantly related to the second receive - day pixel signal, the second pixel signal and the third day day pixel signal. 12. The driving circuit of claim 5, further comprising: a reset switch, the control terminal receiving a reset signal, the first end of which is coupled to the second end of the first displayable switch, a second end of the second display switch and a second end of the second display switch, the second end of which is coupled to a voltage before the first display switch, the second display switch and the display switch are turned on , reset the halogen electrode. Λ 显 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. 13. . μ· The driving power of the second pixel element and the third pixel signal as described in claim 13 of the patent application range; a positive polarity, a negative polarity and a positive polarity signal. 15. The driving circuit complex-halogen signal according to claim 13 of the patent application scope, the third pixel signal and the third halogen signal & a = negative polarity, a positive polarity and a negative polarity Alizarin signal. Knife ',,, 22