WO2017035855A1 - 基于rgbw的驱动电路以及平面显示器 - Google Patents

基于rgbw的驱动电路以及平面显示器 Download PDF

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Publication number
WO2017035855A1
WO2017035855A1 PCT/CN2015/089273 CN2015089273W WO2017035855A1 WO 2017035855 A1 WO2017035855 A1 WO 2017035855A1 CN 2015089273 W CN2015089273 W CN 2015089273W WO 2017035855 A1 WO2017035855 A1 WO 2017035855A1
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Prior art keywords
level
switch tube
level switch
tube
output
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PCT/CN2015/089273
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English (en)
French (fr)
Inventor
邹恭华
曹昌
国春朋
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Wuhan China Star Optoelectronics Technology Co Ltd
TCL China Star Optoelectronics Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Technology Co Ltd
Wuhan China Star Optoelectronics Technology Co Ltd
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Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd, Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to US14/905,789 priority Critical patent/US9799258B2/en
Priority to KR1020187007831A priority patent/KR20180039165A/ko
Priority to RU2018110819A priority patent/RU2682104C1/ru
Priority to GB1804555.9A priority patent/GB2556831B/en
Priority to JP2018510059A priority patent/JP2018530775A/ja
Publication of WO2017035855A1 publication Critical patent/WO2017035855A1/zh
Anticipated expiration legal-status Critical
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3685—Details of drivers for data electrodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2003—Display of colours
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2007—Display of intermediate tones
    • G09G3/2074—Display of intermediate tones using sub-pixels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2092—Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0452—Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0297—Special arrangements with multiplexing or demultiplexing of display data in the drivers for data electrodes, in a pre-processing circuitry delivering display data to said drivers or in the matrix panel, e.g. multiplexing plural data signals to one D/A converter or demultiplexing the D/A converter output to multiple columns

Definitions

  • the present invention relates to the field of liquid crystal display, and more particularly to an RGBW-based driving circuit and a flat panel display.
  • a pixel of a conventional flat panel display includes three sub-pixels of red, green, and blue (RGB), and each sub-pixel has a total of 256 gray levels of 0 to 255, and passes through different red, green, and blue sub-pixels. Grayscale combinations can form different colors.
  • RGB red, green, and blue
  • the RGBW model innovatively adds white (White) sub-pixels to the traditional RGB three primary colors.
  • the light transmittance of the white sub-pixel is three times that of any of the three sub-pixels of red, green, and blue, so that the light transmittance of the entire flat display can be effectively improved.
  • the RGBW-based driving circuit includes: a first driving line 201, a second driving line 202, a third driving line 203, a fourth driving line 204, a first switching tube K1, a second switching tube K2, a third switching tube K3, and a
  • the fourth switch tube K4 the control end of the first switch tube K1 is connected to the first drive line 201, the input end of the first switch tube K1 is connected to the drive signal source 205, the input end of the first switch tube K1 is connected to the red sub-pixel, the second switch The control end of the second switch K2 is connected to the drive signal source 205, the input of the second switch K2 is connected to the green sub-pixel, and the control end of the third switch K3 is connected to the third drive.
  • the input end of the third switch K3 is connected to the drive signal source, the input of the third switch K3 is connected to the blue sub-pixel, and the control end of the fourth switch K4 is connected.
  • the four driving lines, the input end of the fourth switching tube K4 is connected to the driving signal source, and the input of the fourth switching tube K4 is connected to the white sub-pixel.
  • the first driving line 201 When the first driving line 201 outputs a high level, the second driving line 202 outputs a low level, the third driving line 203 outputs a low level, and the fourth driving line 204 outputs a low level, the first switching transistor K1 is turned on, When the second switch K2 is turned off, the third switch K3 is turned off, and the fourth switch K4 is turned off, the driving signal outputted by the driving signal source 205 is output to the red sub-pixel through the first switch K1, so that the red sub-pixel can pass through the backlight. The light produced produces red light.
  • the first driving line K1 When the first driving line K1 outputs a low level, the second driving line K2 outputs a high level, the third driving line K3 outputs a low level, and the fourth driving line K4 outputs a low level, the first switching tube K1 is turned off, the second The switch K2 is turned on, the third switch K3 is turned off, and the fourth switch K4 is turned off, and the driving signal outputted by the driving signal source 205 is output to the green sub-pixel through the second switch K2, so that the green sub-pixel can pass through the backlight.
  • the light produced produces green light.
  • the first driving line 201 When the first driving line 201 outputs a low level, the second driving line 202 outputs a low level, the third driving line 203 outputs a high level, and the fourth driving line 204 outputs a low level, the first switching transistor K1 is turned off, the second The switch K2 is turned off, the third switch K3 is turned on, and the fourth switch K4 is turned off, and the driving signal outputted by the driving signal source 205 is output to the blue sub-pixel through the third switch K3, so that the blue sub-pixel can pass through the backlight.
  • the light produced by the lamp produces blue light.
  • the first driving line 201 When the first driving line 201 outputs a low level, the second driving line 202 outputs a low level, the third driving line 203 outputs a low level, and the fourth driving line 204 outputs a high level, the first switching tube K1 is turned off, the second The switch K2 is turned off, the third switch K3 is turned off, and the fourth switch K4 is turned on, and the driving signal outputted by the driving signal source 205 is output to the white sub-pixel through the fourth switch K4, so that the white sub-pixel can pass through the backlight.
  • the light produced produces white light.
  • the technical problem to be solved by the embodiments of the present invention is to provide an RGBW-based driving circuit and a flat display, which can reduce the area occupied by the driving lines and improve the aperture ratio of the flat display.
  • the invention provides a driving circuit based on RGBW, comprising: a first driving line and a second driving Moving line, first level switch tube, second level switch tube, third level switch tube, fourth level switch tube, first non-level switch tube, second non-level switch tube, third non The level switch tube and the fourth non-level switch tube, wherein the level switch tube is a switch tube that is turned on when the control terminal inputs the first level, and the non-level switch tube is a switch that is turned on when the control terminal inputs the second level.
  • a control end of the first level switch tube is connected to the first driving line, an input end of the first level switch tube is connected to the driving signal source, and an output end of the first level switch tube Connecting the input end of the third non-level switch tube, the control end of the third non-level switch tube is connected to the second drive line, and the output end of the third non-level switch tube is used for connecting a sub-pixel;
  • a control end of the second level switch is connected to the first driving line, an input end of the second level switch is connected to the driving signal source, and the second level switch The output end is connected to the input end of the third level switch tube, and the control of the third level switch tube Connecting the second driving line, the output end of the third level switch tube is used to connect the second sub-pixel;
  • the control end of the first non-level switch tube is connected to the first driving line, the An input end of a non-level switch tube is connected to the driving signal source, and an output end of the first non-level switch tube is connected to an input end of the fourth level
  • the first level is a high level
  • the level switch tube is a high level switch
  • the non level switch tube is low.
  • the switch tube that is turned on.
  • the high-level switch transistor is an N-type field effect transistor or a C-type field effect transistor
  • the low-level turn-on switch transistor is a P-type field effect transistor
  • the first level is a low level
  • the level switch tube is a low-level switch tube
  • the non-level switch tube is high.
  • the switch tube that is turned on.
  • the high-level switch transistor is an N-type field effect transistor or a C-type field effect transistor
  • the low-level turn-on switch transistor is a P-type field effect transistor
  • the present invention also provides a flat panel display comprising a flat display panel and a bottom plate, the flat display panel comprising an RGBW driving circuit, the RGBW driving circuit comprising: a first driving line, a second driving line, and a first level switching tube a second level switch tube, a third level switch tube, a fourth level switch tube, a first non-level switch tube, a second non-level switch tube, a third non-level switch tube, and a fourth non-electricity a switching tube, wherein the level switch tube is a switch tube that is turned on when the control terminal inputs the first level, and the non-level switch tube is a switch tube that is turned on when the control terminal inputs the second level; the first level switch a control end of the tube is connected to the first driving line, an input end of the first level switch tube is connected to the driving signal source, and an output end of the first level switching tube is connected to the third non-level switch An input end of the tube, a control end of the third non-level switch tube is connected to the second driving
  • the first level is a high level
  • the level switch tube is a high level switch
  • the non level switch tube is low.
  • the switch tube that is turned on.
  • the high-level switch transistor is an N-type field effect transistor or a C-type field effect transistor
  • the low-level turn-on switch transistor is a P-type field effect transistor
  • the first level is a low level
  • the level switch tube is a low-level switch tube
  • the non-level switch tube is high.
  • the switch tube that is turned on.
  • the high-level switch transistor is an N-type field effect transistor or a C-type field effect transistor
  • the low-level turn-on switch transistor is a P-type field effect transistor
  • four sub-pixels in the RGBW model can be driven by the timing of the two driving lines and the eight switching tubes.
  • four driving lines are required to be four.
  • the number of driving lines can be reduced, the area occupied by the driving lines can be reduced, and the aperture ratio of the flat display can be improved.
  • 1 is a comparison diagram of a flat panel display based on an RGB model and a flat panel display based on an RGBW model;
  • FIG. 2 is a circuit diagram of a prior art driving circuit
  • FIG. 3 is a circuit diagram of a driving circuit based on RGBW according to an embodiment of the present invention.
  • FIG. 4 is a circuit diagram of another RGBW-based driving circuit in accordance with an embodiment of the present invention.
  • FIG. 3 is a circuit diagram of a driving circuit based on RGBW according to an embodiment of the present invention.
  • the RGBW-based driving circuit of this embodiment includes: a first driving line 301, a second driving line 302, a first level switching tube Q1, a second level switching tube Q2, a third level switching tube Q3, and a fourth power Flat switch tube Q4, first non-level switch tube Q5, second non-level switch tube Q6, third non-level switch tube Q7 and fourth non-level switch tube Q8, wherein the level switch tube is the control end
  • the switch tube that is turned on when the first level is input, and the non-level switch tube is the switch tube that is turned on when the control terminal inputs the second level.
  • the control terminal of the first level switch tube Q1 is connected to the first driving line 301, the input end of the first level switch tube Q1 is connected to the driving signal source 303, and the output end of the first level switch tube Q1 is connected to the third non-level.
  • the input end of the switch tube Q7, the control end of the third non-level switch tube Q7 is connected to the second drive line 302, and the output end of the third non-level switch tube Q7 is used to connect the red sub-pixel.
  • the control end of the second level switch tube Q2 is connected to the first drive line 301, the input end of the second level switch tube Q2 is connected to the drive signal source 303, and the output end of the second level switch tube Q2 is connected to the third level switch tube.
  • the control terminal of the third level switch tube Q3 is connected to the second drive line 302, and the output end of the third level switch tube Q3 is used to connect the green sub-pixel.
  • the control end of the first non-level switch tube Q5 is connected to the first drive line 301, the input end of the first non-level switch tube Q5 is connected to the drive signal source 303, and the output end of the first non-level switch tube Q5 is connected to the fourth line.
  • the input end of the flat switch tube Q4, the control end of the fourth level switch tube Q4 is connected to the second drive line 302, and the output end of the fourth level switch tube Q4 is used to connect the blue sub-pixels.
  • the control end of the second non-level switch tube Q6 is connected to the first drive line 301, the input end of the second non-level switch tube Q8 is connected to the drive signal source 303, and the output end of the second non-level switch tube Q6 is connected to the fourth non-
  • the input end of the level Q8 switch tube, the control end of the fourth non-level switch tube Q8 is connected to the second drive line 302, and the output end of the fourth non-level switch tube Q8 is used to connect the white sub-pixel;
  • the first level switching transistor Q1 and the third non-level switching transistor Q7 are both turned on, so that the driving of the driving signal source 303 is output.
  • the signal is output to the red sub-pixel through the first level switch transistor Q1 and the third non-level switch transistor Q7.
  • the second level switch Q2 is turned on, and the third level switch Q3 is turned off. Therefore, the driving signal output from the driving signal source 303 cannot pass.
  • the second level switch tube Q2 and the third level switch tube Q3 are output to the green sub-pixel.
  • the first non-level switching transistor Q5 is turned off, and the fourth level switching transistor Q4 is turned off. Therefore, the driving signal outputted by the driving signal source 303 cannot be output to the blue through the first non-level switching transistor Q5 and the fourth level switching transistor Q4. Sub-pixels.
  • the second non-level switching transistor Q6 is turned off, and the fourth non-level switching transistor Q8 is turned on. Therefore, the driving signal outputted by the driving signal source 303 cannot pass through the second non-level switching transistor Q6 and the fourth non-level switching transistor Q8. Output to white subpixels.
  • the second level switching transistor Q2 and the third level switching tube Q3 are both turned on, so that the driving signal output by the driving signal source 303 is made. It is output to the green sub-pixel through the second level switch tube Q2 and the third level switch tube Q3.
  • the first level switch tube Q1 When the third non-level switching transistor Q7 is turned off, the driving signal outputted by the driving signal source 303 cannot be output to the red sub-pixel through the first level switching transistor Q1 and the third non-level switching transistor Q7.
  • the first non-level switching transistor Q5 is turned off, and the fourth level switching transistor Q4 is turned on. Therefore, the driving signal outputted by the driving signal source 303 cannot be output to the first non-level switching transistor Q5 and the fourth level switching transistor Q4. Blue subpixel.
  • the second non-level switching transistor Q6 is turned off, and the fourth non-level switching transistor Q8 is turned off. Therefore, the driving signal outputted by the driving signal source 303 cannot be output through the second non-level switching transistor Q6 and the fourth non-level switching transistor Q8. To white subpixels.
  • the first non-level switching transistor Q5 and the fourth level switching transistor Q4 are both turned on, so that the driving of the driving signal source 303 is output.
  • the signal is output to the blue sub-pixel through the first non-level switching transistor Q5 and the fourth level switching transistor Q4.
  • the first level switching transistor Q1 is turned off, and the third non-level switching transistor Q7 is turned off. Therefore, the driving signal output from the driving signal source 303 cannot pass.
  • the first level switching transistor Q1 and the third non-level switching transistor Q7 are output to the red sub-pixel.
  • the second level switch tube Q2 is turned off, and the third level switch tube Q3 is turned on. Therefore, the drive signal outputted by the drive signal source 303 cannot be output to the green sub-stage through the second level switch tube Q2 and the third level switch tube Q3. Pixel.
  • the second non-level switching transistor Q6 is turned on, and the fourth non-level switching transistor Q8 is turned off. Therefore, the driving signal outputted by the driving signal source 303 cannot pass through the second non-level switching transistor Q6 and the fourth non-level switching transistor Q8. Output to white subpixels.
  • the second non-level switching transistor Q6 and the fourth non-level switching transistor Q8 are both turned on, so that the driving signal source 303 outputs
  • the driving signal is output to the white sub-pixel through the second non-level switching transistor Q6 and the fourth non-level switching transistor Q8.
  • the first level switching transistor Q1 is turned off, and the third non-level switching transistor Q7 is turned on. Therefore, the driving signal output by the driving signal source 303 cannot be The red sub-pixel is output through the first level switch tube Q1 and the third non-level switch tube Q7.
  • the second level switch tube Q2 is turned off, and the third level switch tube Q3 is turned off. Therefore, the drive signal output from the drive signal source 303 cannot be output to the green sub-pixel through the second level switch tube Q2 and the third level switch tube Q3. .
  • the first non-level switching transistor Q5 is turned on, and the fourth level switching transistor Q4 is turned off. Therefore, the driving signal outputted by the driving signal source 303 cannot be output to the first non-level switching transistor Q5 and the fourth level switching transistor Q4. Blue subpixel.
  • control logic truth table 1 as shown in Table 1 can be obtained:
  • H is high level and L is low level.
  • the above-mentioned level switch tube is a high-level switch tube, for example, an N-type field effect tube or a C-type field effect tube, etc.; the non-level switch tube is a low-level switch tube.
  • a P-type field effect transistor or the like For example, a P-type field effect transistor or the like.
  • four sub-pixels in the RGBW model can be driven by the timing of the two driving lines and the eight switching tubes.
  • four driving lines are required to be four.
  • the number of driving lines can be reduced, the area occupied by the driving lines can be reduced, and the aperture ratio of the flat display can be improved.
  • the driving circuit can also be set by the opposite logic.
  • the level switch tube in FIG. 3 is set as a non-level switch tube, and the non-level switch tube is set as a level switch tube.
  • the drive circuit of Figure 4. the voltages outputted by the first driving line 301 and the second driving line 302 are opposite to those of the previous embodiment, and driving of four sub-pixels of red, green, blue, and white is also realized.
  • the control logic truth table 2 as shown in Table 2 can be obtained:
  • H is high level and L is low level.
  • the present invention also provides a flat panel display, including a flat display panel and a backplane.
  • the flat display panel includes RGBW driving circuits.
  • RGBW driving circuits For details, please refer to FIG. 3 and related descriptions, which are not described herein.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

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Abstract

一种基于RGBW的驱动电路以及平面显示器。驱动电路中：第一电平开关管（Q1）的控制端连接第一驱动线（301），输入端连接驱动信号源（303），输出端连接第三非电平开关管（Q7）的输入端，第三非电平开关管（Q7）的控制端连接第二驱动线（302），输出端用于连接第一子像素；第二电平开关管（Q2）的控制端连接第一驱动线（301），输入端连接驱动信号源（303），输出端连接第三电平开关管（Q3）的输入端，第三电平开关管（Q3）的控制端连接第二驱动线（302），输出端用于连接第二子像素；第一非电平开关管（Q5）的控制端连接第一驱动线（301），输入端连接驱动信号源（303），输出端连接第四电平开关管（Q4）的输入端，第四电平开关管（Q4）的控制端连接第二驱动线（302），输出端用于连接第三子像素。上述电路能够实现减少驱动线占据的面积，提高显示器的开口率。

Description

基于RGBW的驱动电路以及平面显示器
本发明要求2015年08月28日递交的发明名称为“基于RGBW的驱动电路以及平面显示器”的申请号201510541008.3的在先申请优先权，上述在先申请的内容以引入的方式并入本文本中。
技术领域
本发明涉及液晶显示领域，尤其涉及一种基于RGBW的驱动电路以及平面显示器。
背景技术
如图1所示，传统平面显示器的一个像素点包括红、绿、蓝(RGB)三个子像素，每个子像素有0～255共256个灰度等级，通过不同红、绿、蓝子像素的灰度组合，可以形成不同的颜色。随着平面显示器的发展，人们对平面显示器的清晰度要求也越来越高，即对平面显示器分辨率要求也越来越高，导致在相同尺寸的平面显示器下，平面显示器的开口率越来越低，背光的透光率也越来越低。所以，现有的RGB模型不能满足平面显示器发展的要求。而RGBW模型创新性地在传统RGB三基色基础上增加了白色(White)子像素。白色子像素的透光率是红、绿、蓝三种子像素中的任意一种的三倍，所以能有效地提高整个平面显示器的透光率。
如图2所示，包括红、绿、蓝、白子像素在内的像素点需要驱动电路进行驱动。基于RGBW的驱动电路包括：第一驱动线201、第二驱动线202、第三驱动线203、第四驱动线204、第一开关管K1、第二开关管K2、第三开关管K3以及第四开关管K4，第一开关管K1的控制端连接第一驱动线201，第一开关管K1的输入端连接驱动信号源205，第一开关管K1的输入端连接红色子像素，第二开关管K2的控制端连接第二驱动线202，第二开关管K2的输入端连接驱动信号源205，第二开关管K2的输入连接绿色子像素，第三开关管K3的控制端连接第三驱动线203，第三开关管K3的输入端连接驱动信号源，第三开关管K3的输入连接蓝色子像素，第四开关管K4的控制端连接第 四驱动线，第四开关管K4的输入端连接驱动信号源，第四开关管K4的输入连接白色子像素。
当第一驱动线201输出高电平，第二驱动线202输出低电平，第三驱动线203输出低电平、第四驱动线204输出低电平时，第一开关管K1导通、第二开关管K2截止、第三开关管K3截止以及第四开关管K4截止，驱动信号源205输出的驱动信号通过第一开关管K1输出到红色子像素，使得红色子像素能够透过背光灯所产生的光线，从而产生红光。
当第一驱动线K1输出低电平，第二驱动线K2输出高电平，第三驱动线K3输出低电平、第四驱动线K4输出低电平时，第一开关管K1截止、第二开关K2管导通、第三开关管K3截止以及第四开关管K4截止，驱动信号源205输出的驱动信号通过第二开关管K2输出到绿色子像素，使得绿色子像素能够透过背光灯所产生的光线，从而产生绿光。
当第一驱动线201输出低电平，第二驱动线202输出低电平，第三驱动线203输出高电平、第四驱动线204输出低电平时，第一开关管K1截止、第二开关管K2截止、第三开关管K3导通以及第四开关管K4截止，驱动信号源205输出的驱动信号通过第三开关管K3输出到蓝色子像素，使得蓝色子像素能够透过背光灯所产生的光线，从而产生蓝光。
当第一驱动线201输出低电平，第二驱动线202输出低电平，第三驱动线203输出低电平、第四驱动线204输出高电平时，第一开关管K1截止、第二开关管K2截止、第三开关管K3截止以及第四开关管K4导通，驱动信号源205输出的驱动信号通过第四开关管K4输出到白色子像素，使得白色子像素能够透过背光灯所产生的光线，从而产生白光。
所以，要驱动红、绿、蓝、白四个子像素必须四条驱动线才能实现，但是在实际应用中驱动线会占据大量的面积，降低平面显示器的开口率。
发明内容
本发明实施例所要解决的技术问题在于，提供基于RGBW的驱动电路以及平面显示器，实现了减少驱动线占据的面积，提高平面显示器的开口率。
本发明提供了一种基于RGBW的驱动电路，包括：第一驱动线、第二驱 动线、第一电平开关管、第二电平开关管、第三电平开关管、第四电平开关管、第一非电平开关管、第二非电平开关管、第三非电平开关管以及第四非电平开关管，其中，电平开关管为控制端输入第一电平时导通的开关管，非电平开关管为控制端输入第二电平时导通的开关管；所述第一电平开关管的控制端连接所述第一驱动线，所述第一电平开关管的输入端连接所述驱动信号源，所述第一电平开关管的输出端连接所述第三非电平开关管的输入端，所述第三非电平开关管的控制端连接所述第二驱动线，所述第三非电平开关管的输出端用于连接第一子像素；所述第二电平开关管的控制端连接所述第一驱动线，所述第二电平开关管的输入端连接所述驱动信号源，所述第二电平开关管的输出端连接所述第三电平开关管的输入端，所述第三电平开关管的控制端连接所述第二驱动线，所述第三电平开关管的输出端用于连接第二子像素；所述第一非电平开关管的控制端连接所述第一驱动线，所述第一非电平开关管的输入端连接所述驱动信号源，所述第一非电平开关管的输出端连接所述第四电平开关管的输入端，所述第四电平开关管的控制端连接所述第二驱动线，所述第四电平开关管的输出端用于连接第三子像素；所述第二非电平开关管的控制端连接所述第一驱动线，所述第二非电平开关管的输入端连接所述驱动信号源，所述第二非电平开关管的输出端连接所述第四非电平开关管的输入端，所述第四非电平开关管的控制端连接所述第二驱动线，所述第四非电平开关管的输出端用于连接第四子像素；当第一驱动线输出第一电平，第二驱动线输出第二电平时，所述第一电平开关管以及所述第三非电平开关管均导通，从而使得所述驱动信号源输出的驱动信号通过所述第一电平开关管以及所述第三非电平开关管输出到所述第一子像素；当第一驱动线输出第一电平，第二驱动线输出第一电平时，所述第二电平开关管以及所述第三电平开关管均导通，从而使得所述驱动信号源输出的驱动信号通过所述第二电平开关管以及所述第三电平开关管输出到所述第二子像素；当第一驱动线输出第二电平，第二驱动线输出第一电平时，所述第一非电平开关管以及所述第四电平开关管均导通，从而使得所述驱动信号源输出的驱动信号通过所述第一非电平开关管以及所述第四电平开关管输出到所述第三子像素；当第一驱动线输出第二电平，第二驱动线输出第二电平时，所述第二非电平开关管以及所述第四非电平开关管均导通，从而使得所述驱动 信号源输出的驱动信号通过所述第二非电平开关管以及所述第四非电平开关管输出到所述第四子像素。
可选地，所述第一电平为高电平，第二电平为低电平时，所述电平开关管为高电平导通的开关管，所述非电平开关管为低电平导通的开关管。
可选地，所述高电平导通的开关管为N型场效应管或C型场效应管，所述低电平导通的开关管为P型场效应管。
可选地，所述第一电平为低电平，第二电平为高电平时，所述电平开关管为低电平导通的开关管，所述非电平开关管为高电平导通的开关管。
可选地，所述高电平导通的开关管为N型场效应管或C型场效应管，所述低电平导通的开关管为P型场效应管。
本发明还提供了一种平面显示器，包括平面显示面板以及底板，所述平面显示面板包括RGBW驱动电路，所述RGBW驱动电路包括：第一驱动线、第二驱动线、第一电平开关管、第二电平开关管、第三电平开关管、第四电平开关管、第一非电平开关管、第二非电平开关管、第三非电平开关管以及第四非电平开关管，其中，电平开关管为控制端输入第一电平时导通的开关管，非电平开关管为控制端输入第二电平时导通的开关管；所述第一电平开关管的控制端连接所述第一驱动线，所述第一电平开关管的输入端连接所述驱动信号源，所述第一电平开关管的输出端连接所述第三非电平开关管的输入端，所述第三非电平开关管的控制端连接所述第二驱动线，所述第三非电平开关管的输出端用于连接第一子像素；所述第二电平开关管的控制端连接所述第一驱动线，所述第二电平开关管的输入端连接所述驱动信号源，所述第二电平开关管的输出端连接所述第三电平开关管的输入端，所述第三电平开关管的控制端连接所述第二驱动线，所述第三电平开关管的输出端用于连接第二子像素；所述第一非电平开关管的控制端连接所述第一驱动线，所述第一非电平开关管的输入端连接所述驱动信号源，所述第一非电平开关管的输出端连接所述第四电平开关管的输入端，所述第四电平开关管的控制端连接所述第二驱动线，所述第四电平开关管的输出端用于连接第三子像素；所述第二非电平开关管的控制端连接所述第一驱动线，所述第二非电平开关管的输入端连接所述驱动信号源，所述第二非电平开关管的输出端连接所述第四非电平开关管的输入端，所述第四非电 平开关管的控制端连接所述第二驱动线，所述第四非电平开关管的输出端用于连接第四子像素；当第一驱动线输出第一电平，第二驱动线输出第二电平时，所述第一电平开关管以及所述第三非电平开关管均导通，从而使得所述驱动信号源输出的驱动信号通过所述第一电平开关管以及所述第三非电平开关管输出到所述第一子像素；当第一驱动线输出第一电平，第二驱动线输出第一电平时，所述第二电平开关管以及所述第三电平开关管均导通，从而使得所述驱动信号源输出的驱动信号通过所述第二电平开关管以及所述第三电平开关管输出到所述第二子像素；当第一驱动线输出第二电平，第二驱动线输出第一电平时，所述第一非电平开关管以及所述第四电平开关管均导通，从而使得所述驱动信号源输出的驱动信号通过所述第一非电平开关管以及所述第四电平开关管输出到所述第三子像素；当第一驱动线输出第二电平，第二驱动线输出第二电平时，所述第二非电平开关管以及所述第四非电平开关管均导通，从而使得所述驱动信号源输出的驱动信号通过所述第二非电平开关管以及所述第四非电平开关管输出到所述第四子像素。
可选地，所述第一电平为高电平，第二电平为低电平时，所述电平开关管为高电平导通的开关管，所述非电平开关管为低电平导通的开关管。
可选地，所述高电平导通的开关管为N型场效应管或C型场效应管，所述低电平导通的开关管为P型场效应管。
可选地，所述第一电平为低电平，第二电平为高电平时，所述电平开关管为低电平导通的开关管，所述非电平开关管为高电平导通的开关管。
可选地，所述高电平导通的开关管为N型场效应管或C型场效应管，所述低电平导通的开关管为P型场效应管。
通过实施本发明实施例，能够通过两条驱动线和八个开关管在时序上的配合，实现对RGBW模型中的四个子像素进行驱动，比原来的方式下，必须要四条驱动线才能对四个子像素进行驱动，能够减少了驱动线的数量，减少驱动线会占据的面积，提高平面显示器的开口率。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施 例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是基于RGB模型的平面显示器与基于RGBW模型的平面显示器的对比图；
图2是现有技术的驱动电路的电路图；
图3是本发明实施例的一种基于RGBW的驱动电路的电路图；
图4是本发明实施例的另一种基于RGBW的驱动电路的电路图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
需要说明的是，在本发明实施例中使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本发明。在本发明实施例和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
请参阅图3，图3是本发明实施例的一种基于RGBW的驱动电路的电路图。本实施例的基于RGBW的驱动电路包括：第一驱动线301、第二驱动线302、第一电平开关管Q1、第二电平开关管Q2、第三电平开关管Q3、第四电平开关管Q4、第一非电平开关管Q5、第二非电平开关管Q6、第三非电平开关管Q7以及第四非电平开关管Q8，其中，电平开关管为控制端输入第一电平时导通的开关管，非电平开关管为控制端输入第二电平时导通的开关管。
第一电平开关管Q1的控制端连接第一驱动线301，第一电平开关管Q1的输入端连接驱动信号源303，第一电平开关管Q1的输出端连接第三非电平 开关管Q7的输入端，第三非电平开关管Q7的控制端连接第二驱动线302，第三非电平开关管Q7的输出端用于连接红色子像素。
第二电平开关管Q2的控制端连接第一驱动线301，第二电平开关管Q2的输入端连接驱动信号源303，第二电平开关管Q2的输出端连接第三电平开关管Q3的输入端，第三电平开关管Q3的控制端连接第二驱动线302，第三电平开关管Q3的输出端用于连接绿色子像素。
第一非电平开关管Q5的控制端连接第一驱动线301，第一非电平开关管Q5的输入端连接驱动信号源303，第一非电平开关管Q5的输出端连接第四电平开关管Q4的输入端，第四电平开关管Q4的控制端连接第二驱动线302，第四电平开关管Q4的输出端用于连接蓝色子像素。
第二非电平开关管Q6的控制端连接第一驱动线301，第二非电平开关管Q8的输入端连接驱动信号源303，第二非电平开关管Q6的输出端连接第四非电平Q8开关管的输入端，第四非电平开关管Q8的控制端连接第二驱动线302，第四非电平开关管Q8的输出端用于连接白色子像素；
当第一驱动线301输出高电平，第二驱动线302输出低电平时，第一电平开关管Q1以及第三非电平开关管Q7均导通，从而使得驱动信号源303输出的驱动信号通过第一电平开关管Q1以及第三非电平开关管Q7输出到红色子像素。此时，在第一驱动线301以及第二驱动线302的作用下，第二电平开关管Q2导通，第三电平开关管Q3截止，所以，驱动信号源303输出的驱动信号不能通过第二电平开关管Q2以及第三电平开关管Q3输出到绿色子像素。第一非电平开关管Q5截止，第四电平开关管Q4截止，所以，驱动信号源303输出的驱动信号不能通过第一非电平开关管Q5以及第四电平开关管Q4输出到蓝色子像素。第二非电平开关管Q6截止，第四非电平开关管Q8导通，所以，驱动信号源303输出的驱动信号不能通过第二非电平开关管Q6以及第四非电平开关管Q8输出到白色子像素。
当第一驱动线301输出高电平，第二驱动线302输出高电平时，第二电平开关管Q2以及第三电平开关管Q3均导通，从而使得驱动信号源303输出的驱动信号通过第二电平开关管Q2以及第三电平开关管Q3输出到绿色子像素。此时，在第一驱动线301以及第二驱动线302的作用下，第一电平开关管Q1 导通，第三非电平开关管Q7截止，所以，驱动信号源303输出的驱动信号不能通过第一电平开关管Q1以及第三非电平开关管Q7输出到红色子像素。第一非电平开关管Q5截止，第四电平开关管Q4导通，所以，驱动信号源303输出的驱动信号不能通过第一非电平开关管Q5以及第四电平开关管Q4输出到蓝色子像素。第二非电平开关管Q6截止，第四非电平开关管Q8截止，所以，驱动信号源303输出的驱动信号不能通过第二非电平开关管Q6以及第四非电平开关管Q8输出到白色子像素。
当第一驱动线301输出低电平，第二驱动线302输出高电平时，第一非电平开关管Q5以及第四电平开关管Q4均导通，从而使得驱动信号源303输出的驱动信号通过第一非电平开关管Q5以及第四电平开关管Q4输出到蓝色子像素。此时，在第一驱动线301以及第二驱动线302的作用下，第一电平开关管Q1截止，第三非电平开关管Q7截止，所以，驱动信号源303输出的驱动信号不能通过第一电平开关管Q1以及第三非电平开关管Q7输出到红色子像素。第二电平开关管Q2截止，第三电平开关管Q3导通，所以，驱动信号源303输出的驱动信号不能通过第二电平开关管Q2以及第三电平开关管Q3输出到绿色子像素。第二非电平开关管Q6导通，第四非电平开关管Q8截止，所以，驱动信号源303输出的驱动信号不能通过第二非电平开关管Q6以及第四非电平开关管Q8输出到白色子像素。
当第一驱动线301输出低电平，第二驱动线302输出低电平时，第二非电平开关管Q6以及第四非电平开关管Q8均导通，从而使得驱动信号源303输出的驱动信号通过第二非电平开关管Q6以及第四非电平开关管Q8输出到白色子像素。此时，在第一驱动线301以及第二驱动线302的作用下，第一电平开关管Q1截止，第三非电平开关管Q7导通，所以，驱动信号源303输出的驱动信号不能通过第一电平开关管Q1以及第三非电平开关管Q7输出到红色子像素。第二电平开关管Q2截止，第三电平开关管Q3截止，所以，驱动信号源303输出的驱动信号不能通过第二电平开关管Q2以及第三电平开关管Q3输出到绿色子像素。第一非电平开关管Q5导通，第四电平开关管Q4截止，所以，驱动信号源303输出的驱动信号不能通过第一非电平开关管Q5以及第四电平开关管Q4输出到蓝色子像素。
根据上述逻辑，可以获得如表1所示的控制逻辑真值表一：
表1控制逻辑真值表一
Figure PCTCN2015089273-appb-000001
其中，H为高电平，L为低电平。
此时，上述的电平开关管为高电平导通的开关管，例如，N型场效应管或C型场效应管等等；非电平开关管为低电平导通的开关管，例如，P型场效应管等等。
可以理解，上述的红色子像素、绿色子像素、蓝色子像素和白色子像素的位置可以互换，不影响驱动电路的工作效果。
通过实施本发明实施例，能够通过两条驱动线和八个开关管在时序上的配合，实现对RGBW模型中的四个子像素进行驱动，比原来的方式下，必须要四条驱动线才能对四个子像素进行驱动，能够减少了驱动线的数量，减少驱动线会占据的面积，提高平面显示器的开口率。
参阅图4，驱动电路也可以通过相反的逻辑进行设置，例如，将图3中的电平开关管设置为非电平开关管，而将非电平开关管设置为电平开关管就可以得到如图4的驱动电路。此时，令第一驱动线301和第二驱动线302输出的电压与上一实施例相反，同样实现红、绿、蓝、白四个子像素的驱动。根据这一逻辑，可以获得如表2所示的控制逻辑真值表二：
表2控制逻辑真值表二
Figure PCTCN2015089273-appb-000002
Figure PCTCN2015089273-appb-000003
其中，H为高电平，L为低电平。
具体请参阅图3及相关描述，此处不再展开描述。
本发明还提供了一种平面显示器，包括平面显示面板以及底板，平面显示面板包括RGBW驱动电路，具体请参阅图3以及相关描述，此处不再一一描述。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，所述的程序可存储于一计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施例的流程。其中，所述的存储介质可为磁碟、光盘、只读存储记忆体(Read-Only Memory，ROM)或随机存储记忆体(Random Access Memory，RAM)等。
以上所揭露的仅为本发明一种较佳实施例而已，当然不能以此来限定本发明之权利范围，本领域普通技术人员可以理解实现上述实施例的全部或部分流程，并依本发明权利要求所作的等同变化，仍属于发明所涵盖的范围。

Claims (10)

  1. 一种基于RGBW的驱动电路，其特征在于，包括：第一驱动线、第二驱动线、第一电平开关管、第二电平开关管、第三电平开关管、第四电平开关管、第一非电平开关管、第二非电平开关管、第三非电平开关管以及第四非电平开关管，其中，电平开关管为控制端输入第一电平时导通的开关管，非电平开关管为控制端输入第二电平时导通的开关管；
    所述第一电平开关管的控制端连接所述第一驱动线，所述第一电平开关管的输入端连接所述驱动信号源，所述第一电平开关管的输出端连接所述第三非电平开关管的输入端，所述第三非电平开关管的控制端连接所述第二驱动线，所述第三非电平开关管的输出端用于连接第一子像素；
    所述第二电平开关管的控制端连接所述第一驱动线，所述第二电平开关管的输入端连接所述驱动信号源，所述第二电平开关管的输出端连接所述第三电平开关管的输入端，所述第三电平开关管的控制端连接所述第二驱动线，所述第三电平开关管的输出端用于连接第二子像素；
    所述第一非电平开关管的控制端连接所述第一驱动线，所述第一非电平开关管的输入端连接所述驱动信号源，所述第一非电平开关管的输出端连接所述第四电平开关管的输入端，所述第四电平开关管的控制端连接所述第二驱动线，所述第四电平开关管的输出端用于连接第三子像素；
    所述第二非电平开关管的控制端连接所述第一驱动线，所述第二非电平开关管的输入端连接所述驱动信号源，所述第二非电平开关管的输出端连接所述第四非电平开关管的输入端，所述第四非电平开关管的控制端连接所述第二驱动线，所述第四非电平开关管的输出端用于连接第四子像素；
    当第一驱动线输出第一电平，第二驱动线输出第二电平时，所述第一电平开关管以及所述第三非电平开关管均导通，从而使得所述驱动信号源输出的驱动信号通过所述第一电平开关管以及所述第三非电平开关管输出到所述第一子像素；
    当第一驱动线输出第一电平，第二驱动线输出第一电平时，所述第二电平开关管以及所述第三电平开关管均导通，从而使得所述驱动信号源输出的驱动信号通过所述第二电平开关管以及所述第三电平开关管输出到所述第二子像 素；
    当第一驱动线输出第二电平，第二驱动线输出第一电平时，所述第一非电平开关管以及所述第四电平开关管均导通，从而使得所述驱动信号源输出的驱动信号通过所述第一非电平开关管以及所述第四电平开关管输出到所述第三子像素；
    当第一驱动线输出第二电平，第二驱动线输出第二电平时，所述第二非电平开关管以及所述第四非电平开关管均导通，从而使得所述驱动信号源输出的驱动信号通过所述第二非电平开关管以及所述第四非电平开关管输出到所述第四子像素。
  2. 根据权利要求1所述的电路，其特征在于，所述第一电平为高电平，第二电平为低电平时，所述电平开关管为高电平导通的开关管，所述非电平开关管为低电平导通的开关管。
  3. 根据权利要求2所述的电路，其特征在于，所述高电平导通的开关管为N型场效应管或C型场效应管，所述低电平导通的开关管为P型场效应管。
  4. 根据权利要求1所述的电路，其特征在于，所述第一电平为低电平，第二电平为高电平时，所述电平开关管为低电平导通的开关管，所述非电平开关管为高电平导通的开关管。
  5. 根据权利要求4所述的电路，其特征在于，所述高电平导通的开关管为N型场效应管或C型场效应管，所述低电平导通的开关管为P型场效应管。
  6. 一种平面显示器，其特征在于，包括平面显示面板以及底板，所述平面显示面板包括RGBW驱动电路，所述RGBW驱动电路包括：第一驱动线、第二驱动线、第一电平开关管、第二电平开关管、第三电平开关管、第四电平开关管、第一非电平开关管、第二非电平开关管、第三非电平开关管以及第四非电平开关管，其中，电平开关管为控制端输入第一电平时导通的开关管，非电平开关管为控制端输入第二电平时导通的开关管；
    所述第一电平开关管的控制端连接所述第一驱动线，所述第一电平开关管的输入端连接所述驱动信号源，所述第一电平开关管的输出端连接所述第三非电平开关管的输入端，所述第三非电平开关管的控制端连接所述第二驱动线，所述第三非电平开关管的输出端用于连接第一子像素；
    所述第二电平开关管的控制端连接所述第一驱动线，所述第二电平开关管的输入端连接所述驱动信号源，所述第二电平开关管的输出端连接所述第三电平开关管的输入端，所述第三电平开关管的控制端连接所述第二驱动线，所述第三电平开关管的输出端用于连接第二子像素；
    所述第一非电平开关管的控制端连接所述第一驱动线，所述第一非电平开关管的输入端连接所述驱动信号源，所述第一非电平开关管的输出端连接所述第四电平开关管的输入端，所述第四电平开关管的控制端连接所述第二驱动线，所述第四电平开关管的输出端用于连接第三子像素；
    所述第二非电平开关管的控制端连接所述第一驱动线，所述第二非电平开关管的输入端连接所述驱动信号源，所述第二非电平开关管的输出端连接所述第四非电平开关管的输入端，所述第四非电平开关管的控制端连接所述第二驱动线，所述第四非电平开关管的输出端用于连接第四子像素；
    当第一驱动线输出第一电平，第二驱动线输出第二电平时，所述第一电平开关管以及所述第三非电平开关管均导通，从而使得所述驱动信号源输出的驱动信号通过所述第一电平开关管以及所述第三非电平开关管输出到所述第一子像素；
    当第一驱动线输出第一电平，第二驱动线输出第一电平时，所述第二电平开关管以及所述第三电平开关管均导通，从而使得所述驱动信号源输出的驱动信号通过所述第二电平开关管以及所述第三电平开关管输出到所述第二子像素；
    当第一驱动线输出第二电平，第二驱动线输出第一电平时，所述第一非电平开关管以及所述第四电平开关管均导通，从而使得所述驱动信号源输出的驱动信号通过所述第一非电平开关管以及所述第四电平开关管输出到所述第三子像素；
    当第一驱动线输出第二电平，第二驱动线输出第二电平时，所述第二非电平开关管以及所述第四非电平开关管均导通，从而使得所述驱动信号源输出的驱动信号通过所述第二非电平开关管以及所述第四非电平开关管输出到所述第四子像素。
  7. 根据权利要求1所述的平面显示器，其特征在于，所述第一电平为高 电平，第二电平为低电平时，所述电平开关管为高电平导通的开关管，所述非电平开关管为低电平导通的开关管。
  8. 根据权利要求1所述的平面显示器，其特征在于，所述高电平导通的开关管为N型场效应管或C型场效应管，所述低电平导通的开关管为P型场效应管。
  9. 根据权利要求1所述的平面显示器，其特征在于，所述第一电平为低电平，第二电平为高电平时，所述电平开关管为低电平导通的开关管，所述非电平开关管为高电平导通的开关管。
  10. 根据权利要求9所述的平面显示器，其特征在于，所述高电平导通的开关管为N型场效应管或C型场效应管，所述低电平导通的开关管为P型场效应管。
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