WO2019205208A1 - 一种多路复用型驱动电路以及驱动方法、显示设备 - Google Patents
一种多路复用型驱动电路以及驱动方法、显示设备 Download PDFInfo
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- WO2019205208A1 WO2019205208A1 PCT/CN2018/087936 CN2018087936W WO2019205208A1 WO 2019205208 A1 WO2019205208 A1 WO 2019205208A1 CN 2018087936 W CN2018087936 W CN 2018087936W WO 2019205208 A1 WO2019205208 A1 WO 2019205208A1
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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
- G09G3/2007—Display of intermediate tones
- G09G3/2074—Display of intermediate tones using sub-pixels
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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
- G09G3/3607—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 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
Definitions
- the present application relates to the field of display technologies, and in particular, to a multiplex type driving circuit, a driving method, and a display device.
- liquid crystal display device Liquid Crystal Display, LCD
- organic light emitting diode display device Organic Light Emitting Display, OLED, etc., each of which includes a plurality of array-arranged pixels, each of which typically includes three colors of red, green, and blue sub-pixels, each of which is controlled by a gate line and a strip.
- the data line, the gate line is used to control the opening and closing of the sub-pixel, and the data line displays different gray scales by applying different data voltage signals to the sub-pixels, thereby realizing the display of the full-color picture.
- the technical problem to be solved by the present application is to provide a multiplexed driving circuit, a driving method, and a display device, which can avoid color shift caused by insufficient charging time of the third sub-pixel and improve display quality of the display.
- a technical solution adopted by the present application is to provide a multiplex type driving circuit for a display device, wherein the multiplex type driving circuit includes a plurality of scanning signal lines and a plurality of a data signal line, and the plurality of scan lines and the plurality of data lines enclose an array of distributed sub-pixels; the multiplexed drive circuit further includes: a first switch, a second switch, and a third a switch, wherein the input end inputs a data signal; the fourth switch, the fifth switch, and the sixth switch have an input end coupled to the output ends of the first switch, the second switch, and the third switch, respectively, and an output thereof
- the first sub-pixel, the second sub-pixel, and the third sub-pixel are respectively connected to the first pixel, wherein the first sub-pixel, the second sub-pixel, and the third sub-pixel are respectively a red sub-pixel, a green sub-pixel, and a blue sub-pixel, wherein the first switch, the second switch, the third switch,
- another technical solution adopted by the present application is to provide a driving method of a multiplex type driving circuit, the multiplex type driving circuit including: a first switch, a second switch, and a third a switch, wherein the input end inputs a data signal; the fourth switch, the fifth switch, and the sixth switch have an input end coupled to the output ends of the first switch, the second switch, and the third switch, respectively, and the output ends thereof are coupled to the same pixel a first sub-pixel, a second sub-pixel, and a third sub-pixel adjacent to the unit; the driving method includes: turning on the fourth switch, the fifth switch, and the sixth switch; controlling opening and closing of the first switch to give the first Subpixel input data signal; controlling the opening and closing of the second switch, inputting a data signal to the second subpixel; controlling the opening of the third switch and closing of the sixth switch, inputting a data signal to the third subpixel; After the turning off, the third switch is turned off, so that the durations of inputting the data signals
- another technical solution adopted by the present application is to provide a display device including the multiplex type driving circuit as described above.
- the multiplexed driving circuit provided by the present application includes: a first switch, a second switch, and a third switch, the input end of which inputs a data signal; the fourth switch The fifth switch and the sixth switch have an input end coupled to the output ends of the first switch, the second switch, and the third switch, and an output end coupled to the adjacent first sub-pixel and the second in the same pixel unit a sub-pixel and a third sub-pixel; the driving method includes: turning on the fourth switch, the fifth switch, and the sixth switch; controlling turning on and off of the first switch, inputting a data signal to the first sub-pixel; controlling opening of the second switch Turning off, inputting a data signal to the second sub-pixel; controlling opening of the third switch and closing of the sixth switch, inputting a data signal to the third sub-pixel; turning off the third switch after the sixth switch is turned off, so that the first sub-pixel is given The durations of the second sub-pixel and the third sub-pixel input data
- the charging time of each sub-pixel is ensured to be consistent, and the color shift caused by insufficient illumination time of a certain sub-pixel is avoided, and the display is improved.
- the quality of the display is improved.
- FIG. 1 is a schematic structural diagram of a multiplex type driving circuit provided by the present application.
- FIG. 2 is a schematic diagram of a signal of a conventional multiplex type driving circuit
- 3 is another signal diagram of a conventional multiplex type driving circuit
- FIG. 4 is a schematic flow chart of a first embodiment of a driving method of a multiplex type driving circuit provided by the present application
- FIG. 5 is a schematic flow chart of a second embodiment of a driving method of a multiplex type driving circuit provided by the present application.
- Figure 6 is a schematic diagram of the signal of Figure 5;
- FIG. 7 is a schematic flow chart of a third embodiment of a driving method of a multiplex type driving circuit provided by the present application.
- Figure 8 is a schematic diagram of the signal of Figure 7;
- FIG. 9 is a schematic flow chart of a fourth embodiment of a driving method of a multiplex type driving circuit provided by the present application.
- Figure 10 is a schematic diagram of the signal of Figure 9;
- FIG. 11 is a schematic flow chart of a fifth embodiment of a driving method of a multiplex type driving circuit provided by the present application.
- Figure 12 is a schematic diagram of the signal of Figure 11;
- FIG. 13 is a schematic structural diagram of an embodiment of a display device provided by the present application.
- references to "an embodiment” herein mean that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of the present application.
- the appearances of the phrases in various places in the specification are not necessarily referring to the same embodiments, and are not exclusive or alternative embodiments that are mutually exclusive. Those skilled in the art will understand and implicitly understand that the embodiments described herein can be combined with other embodiments.
- FIG. 1 is a schematic structural diagram of a multiplex type driving circuit provided by the present application, and the multiplex type driving circuit includes a plurality of driving units 100 .
- the driving unit 100 is also called a DEMUX (de-multiplexer), and uses a switch to time-division multiplex the data signal input to reduce the number and cost of the data signal circuit.
- the same data signal drives three columns of sub-pixels after time division multiplexing.
- each driving unit includes at least a first switch T1, a second switch T2, and a third switch T3, and the input ends thereof all pass the data signal data.
- a switch is also included in each sub-pixel, taking the first sub-pixel, the second sub-pixel, and the third sub-pixel in the same pixel unit as an example, and the fourth sub-pixel is provided with a fourth switch T4, and a second A fifth switch T5 is disposed in the sub-pixel, and a sixth switch T6 is disposed in the third sub-pixel, and the input ends of the fourth switch T4, the fifth switch T5, and the sixth switch T6 are respectively coupled to the first switch T1 and the second switch An output end of the T2 and the third switch T3 is coupled to the first sub-pixel, the second sub-pixel, and the third sub-pixel, respectively.
- the first sub-pixel, the second sub-pixel, and the third sub-pixel are respectively a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B in the same pixel unit.
- the control ends of the first switch T1, the second switch T2, and the third switch T3 respectively input the first control signal SW1, the second control signal SW2, and the third control signal SW3.
- the switches may be FETs, and different levels may be used to control the opening and closing of the FET. For example, if the control signal is at the first level, the switch can be controlled to be turned on, and if the control signal is at the second level, The switch can be controlled to turn off. Specifically, the N-type field effect transistor is taken as an example. If the control signal is at a high level, the switch is turned on. If the control signal is at a low level, the switch is turned off.
- a P-type FET can also be used, and the control signal is turned on when the signal is low, and is turned off when the control signal is at a high level.
- the fourth switch T4, the fifth switch T5, and the sixth switch T6 are generally thin film transistors (TFTs), and the control end of the switch is coupled to the gate line, receives the scan signal gate, and the input end is coupled to the data line. The data signal is received, and the output end is coupled to the pixel electrode of the sub-pixel to charge the pixel electrode by using the voltage provided by the data signal when the switch is turned on, thereby implementing display.
- TFTs thin film transistors
- the data signal data can be input to the pixel electrode of the sub-pixel for charging, for example, at the same time as the first switch T1 and the fourth switch T4.
- the data signal data can be input to the pixel electrode of the first sub-pixel, and the pixel is charged.
- the display panel generally includes a plurality of pixels arranged in an array. As shown in FIG. 1 , three sub-pixels of the second row are coupled to the second strip.
- the gate drive line will not be described here.
- FIG. 2 is a signal diagram of a conventional multiplex type driving circuit.
- Each cycle of the data signal sequentially includes a first sub-period, a second sub-period, and a third sub-period; the first switch T1, the second switch T2, and the third switch T3 are respectively corresponding to the first sub-period, the second sub-period, and The third sub-cycle is turned on to charge the corresponding sub-pixels by the data signal.
- the control ends of the first switch T1, the second switch T2 and the third switch T3 respectively pass the first control signal SW1, the second control signal SW2 and the third control signal SW3 for controlling when the control signal is at the first level
- the corresponding switch is turned on and used to control the corresponding switch to be turned off when the control signal is at the second level.
- the first row is scanned, gate1 is at a high level, and T4, T5, and T6 are both turned on. Further, the period is divided into three sub-cycles.
- SW1 is at a high level
- T1 is turned on
- a data signal charges the first sub-pixel
- SW2 is at a high level
- T2 When the data signal is on, the second sub-pixel is charged.
- SW3 is at a high level
- T3 is turned on, and the data signal charges the third sub-pixel.
- the first sub-pixel, the second sub-pixel, and the third sub-pixel are three sub-pixels of a pixel unit in the first row of pixels.
- the period is divided into three sub-cycles.
- SW1 is at a high level
- T1 is turned on
- SW2 is at a high level
- T2 When the data signal is on, the second sub-pixel is charged.
- SW3 is at a high level
- T3 is turned on, and the data signal charges the third sub-pixel.
- the first sub-pixel, the second sub-pixel, and the third sub-pixel are three sub-pixels of a pixel unit in the second row of pixels.
- FIG. 3 is another signal diagram of a conventional multiplex type driving circuit. It can be understood that the display device is generally performed in a progressive scan manner. After the first line scan is completed, gate1 is turned to a low level, and T4, T5, and T6 are turned off. In order to prevent the problem of data signal mischarge caused by the FET being turned off in time, the gate1 is generally changed to a low level in advance.
- the charging time of the first sub-pixel is t1
- the charging time of the second sub-pixel is t2
- the charging time of the third sub-pixel is less than t3, only in the t3' time when SW3 and gate1 are simultaneously high. Only to charge.
- FIG. 4 is a schematic flowchart diagram of a first embodiment of a driving method of a multiplexed driving circuit provided by the present application, where the driving method includes:
- Step 41 Turn on the fourth switch, the fifth switch, and the sixth switch.
- the main purpose is to pass a high level signal to the scan lines of the row of the first sub-pixel, the second sub-pixel and the third sub-pixel.
- Step 42 Control the opening and closing of the first switch to input a data signal to the first sub-pixel.
- Step 43 Control the opening and closing of the second switch to input a data signal to the second sub-pixel.
- Step 44 Control the opening of the third switch and the closing of the sixth switch to input a data signal to the third sub-pixel.
- the first switch T1, the second switch T2 and the third switch T3 are sequentially turned on. It is worth noting that before the third switch T3 is turned off, the sixth switch T6 is turned off in advance, so that the next is guaranteed. When the row switch is turned on, the data signal data is not mischarged to the next row of pixels.
- Step 45 Turn off the third switch after the sixth switch is turned off, so that the durations of inputting the data signals to the first sub-pixel, the second sub-pixel, and the third sub-pixel are consistent.
- step 45 it is ensured that the charging durations of the three sub-pixels are consistent.
- FIG. 5 is a schematic flowchart diagram of a second embodiment of a driving method of a multiplexed driving circuit provided by the present application, where the driving method includes:
- Step 51 Turn on the fourth switch, the fifth switch, and the sixth switch.
- Step 52 At the beginning of the first sub-cycle, the first switch is turned on, and before the end of the first sub-period, the first switch is turned off in advance.
- Step 53 At the beginning of the second sub-cycle, the second switch is turned on, and before the end of the second sub-period, the second switch is turned off in advance.
- Step 54 At the beginning of the third sub-cycle, the third switch is turned on, and before the end of the third sub-period, the sixth switch is turned off.
- Step 55 Turn off the third switch after the sixth switch is turned off, so that the durations of inputting the data signals to the first sub-pixel, the second sub-pixel, and the third sub-pixel are consistent.
- FIG. 6 is a schematic diagram of the signal of FIG. 5.
- each period of the data signal is divided into a first sub-period, a second sub-period, and a third sub-period.
- the third sub-pixel is undercharged due to the early closing of the gate, and the color shift occurs.
- the direct reason is that the charging time of the third sub-pixel is smaller than the first sub-pixel and the second sub-pixel.
- T1 and T2 are turned off in advance on the original basis, the length of time when T1 and T2 are turned on is shortened, and the duration of T3 is unchanged, so that the opening time of T3 is greater than the opening time of T1 and T2, so that When T3 and T6 are turned on at the same time, since the turn-off of T6 is earlier than T3, the charging time of the third sub-pixel is shortened, and the charging time of the three sub-pixels can still be consistent to avoid color shift.
- the rising edge of the high level of the first control signal SW1 corresponds to the start time of the first sub-period
- the falling edge of the high level of the first control signal SW1 is earlier than
- the rising edge of the high level of the second control signal SW2 corresponds to the start time of the second sub-period
- the falling edge of the high level of the second control signal SW2 is earlier than the end time of the second sub-period
- the rising edge and the falling edge of the high level of the third control signal SW3 correspond to the start time and the end time of the third sub-period, respectively.
- the charging time of each sub-pixel can be adjusted, and the charging time of different sub-pixels in the same pixel unit is specifically controlled to be consistent.
- FIG. 7 is a schematic flowchart diagram of a third embodiment of a driving method of a multiplexed driving circuit provided by the present application, where the driving method includes:
- Step 71 Turn on the fourth switch, the fifth switch, and the sixth switch.
- Step 72 After the start of the first sub-period, the first switch is turned on, and at the end of the first sub-period, the first switch is turned off.
- Step 73 After the start of the second sub-cycle, the second switch is turned on, and at the end of the second sub-cycle, the second switch is turned off.
- Step 74 At the beginning of the third sub-cycle, the third switch is turned on, and before the end of the third sub-period, the sixth switch is turned off.
- Step 75 Turn off the third switch after the sixth switch is turned off, so that the durations of inputting the data signals to the first sub-pixel, the second sub-pixel, and the third sub-pixel are consistent.
- FIG. 8 is a schematic diagram of the signal of FIG. 7.
- each period of the data signal is divided into a first sub-period, a second sub-period, and a third sub-period.
- the rising edge of the high level of the first control signal SW1 is later than the starting time of the first sub-period
- the falling edge of the high level of the first control signal SW1 corresponds to At the end of the first sub-period
- the rising edge of the high level of the second control signal SW2 is later than the start time of the second sub-period
- the falling edge of the high level of the second control signal SW2 corresponds to the ending time of the second sub-period
- the rising edge and the falling edge of the high level of the third control signal SW3 correspond to the start time and the end time of the third sub-period, respectively.
- the charging time of each sub-pixel can be adjusted, and the charging time of different sub-pixels in the same pixel unit is specifically controlled to be consistent.
- the rising edge and the falling edge of the high level of the first control signal SW1 and the second control signal SW2 do not necessarily correspond to the start time and the end time of each sub-cycle, for example, the first The rising edge of the high level of the control signal SW1 is later than the start time of the first sub-period, and the falling edge is earlier than the end time of the first sub-period, so that the high-level duration of the first control signal SW1 is maintained in the first sub-period The time is less than the length of time of the first sub-period.
- FIG. 9 is a schematic flowchart diagram of a fourth embodiment of a driving method of a multiplexed driving circuit provided by the present application, where the driving method includes:
- Step 91 Turn on the fourth switch, the fifth switch, and the sixth switch.
- Step 92 At the beginning of the first sub-cycle, the first switch is turned on, and at the end of the first sub-period, the first switch is turned off.
- Step 93 At the beginning of the second sub-cycle, the second switch is turned on, and at the end of the second sub-cycle, the second switch is turned off.
- Step 94 Turn on the third switch in advance before the start of the second sub-period, and turn off the sixth switch before the end of the third sub-period.
- Step 95 Turn off the third switch after the sixth switch is turned off, so that the durations of inputting the data signals to the first sub-pixel, the second sub-pixel, and the third sub-pixel are consistent.
- FIG. 10 is a schematic diagram of the signal of FIG. 9.
- each period of the data signal is divided into a first sub-period, a second sub-period, and a third sub-period.
- the third sub-pixel is undercharged due to the early closing of the gate, and the color shift occurs.
- the direct reason is that the charging time of the third sub-pixel is smaller than the first sub-pixel and the second sub-pixel.
- T3 is turned on in advance on the original basis, and the duration of T3 is extended, so that the opening time of T3 is longer than the opening time of T1 and T2, so that when T3 and T6 are simultaneously turned on, the T6 is turned off early.
- T3 after the charging time of the third sub-pixel is shortened, the charging time of the three sub-pixels can still be consistent to avoid color shift.
- the rising edge and the falling edge of the high level of the first control signal SW1 respectively correspond to the start time and the end time of the first sub-period
- the rising edge and the falling edge of the high level of the second control signal SW2 are respectively Corresponding to the start time and end time of the second sub-period, respectively.
- T3 is turned on in advance, during which the second sub-pixel and the third sub-pixel are simultaneously charged.
- the second control signal SW2 is lowered to a low level, T2 is turned off, the second sub-pixel stops charging, the third control signal SW3 remains high, the T3 remains on, and the third sub-pixel continues to be charged until the third sub-pixel At the end of the cycle, T3 is turned off.
- the third sub-pixel starts charging in advance, so that the third sub-pixel starts charging in advance.
- the charging time of the sub-pixels is the same as that of the first sub-pixels and the second sub-pixels, ensuring that the charging time of each sub-pixel is consistent, avoiding the color shift caused by insufficient illumination time of a certain primary color, and improving the display quality of the display.
- FIG. 11 is a schematic flowchart diagram of a fifth embodiment of a driving method of a multiplexed driving circuit provided by the present application, where the driving method includes:
- Step 111 Turn on the fourth switch, the fifth switch, and the sixth switch.
- Step 112 At the beginning of the first sub-cycle, the first switch is turned on, and at the end of the first sub-cycle, the first switch is turned off.
- Step 113 Turn on the second switch in advance before the start of the second sub-period, and turn off the second switch before the end of the second sub-period.
- Step 114 Turn on the third switch in advance before the start of the third sub-period, and turn off the sixth switch before the end of the third sub-period.
- Step 115 Turn off the third switch after the sixth switch is turned off, so that the durations of inputting the data signals to the first sub-pixel, the second sub-pixel, and the third sub-pixel are consistent.
- FIG. 12 is a schematic diagram of the signal of FIG. 11.
- each period of the data signal is divided into a first sub-period, a second sub-period, and a third sub-period.
- the rising edge of the second control signal SW2 is also advanced here, but the duration of the high level does not change.
- the rising edge and the falling edge of the high level of the first control signal SW1 respectively correspond to the start time and the end time of the first sub-period, and the rising edge of the high level of the second control signal SW2 is earlier than the first
- T2 is turned on earlier.
- the first control signal SW1 is lowered to a low level, T1 is turned off, and the first sub-pixel stops charging.
- the second control signal SW2 is still at a high level, and T2 remains open.
- T3 is turned on in advance, during which the second sub-pixel and the third sub-pixel are simultaneously charged.
- the second control signal SW2 is lowered to a low level, T2 is turned off, the second sub-pixel stops charging, the third control signal SW3 remains high, the T3 remains on, and the third sub-pixel continues to be charged until the third sub-pixel At the end of the cycle, T3 is turned off.
- the durations of charging the first sub-pixel and the second sub-pixel simultaneously are equal to the duration of simultaneous charging of the second sub-pixel and the third sub-pixel.
- FIG. 13 is a schematic structural diagram of an embodiment of a display device provided by the present application, and the display device may be a liquid crystal display.
- the liquid crystal display includes a liquid crystal panel 131 and a backlight module 132.
- the bonding region of the liquid crystal panel 131 is provided with a driving circuit which is a multiplexed driving circuit as provided in the above embodiments.
- the multiplexed driving circuit includes a plurality of driving units, each driving circuit is specifically configured to drive adjacent three columns of sub-pixels, and the gate signal and the control signal are used to control the opening and closing of each switch. Circuit driven. For specific structures and signals of the circuit, reference may be made to the above various embodiments, and details are not described herein again.
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Abstract
一种多路复用型驱动电路以及驱动方法、显示设备,该驱动电路包括:第一开关(T1)、第二开关(T2)和第三开关(T3),其输入端输入数据信号(data);第四开关(T4)、第五开关(T5)和第六开关(T6),其输入端分别耦接第一开关(T1)、第二开关(T2)和第三开关(T3)的输出端,其输出端分别耦接第一子像素(R)、第二子像素(G)和第三子像素(B);该驱动方法包括:开启第四开关(T4)、第五开关(T5)和第六开关(T6);控制第一开关(T1)的开启和关闭,给第一子像素(R)输入数据信号(data);控制第二开关(T2)的开启和关闭,给第二子像素(G)输入数据信号(data);控制第三开关(T3)的开启和第六开关(T6)的关闭,给第三子像素(B)输入数据信号(data);在第六开关(T6)关闭之后关闭第三开关(T3),能够避免第三子像素(B)充电时长不足造成的色偏,提高了显示器的显示质量。
Description
【技术领域】
本申请涉及显示技术领域,特别是涉及一种多路复用型驱动电路以及驱动方法、显示设备。
【背景技术】
在液晶显示装置(Liquid Crystal
Display,LCD)与有机发光二极管显示装置(Organic Light Emitting
Display,OLED)等平板显示装置中均包括多个阵列式排布的像素,每个像素通常包括红、绿、蓝三种颜色的子像素,每个子像素均受控于一条栅极线与一条数据线,栅极线用于控制子像素的开启和关闭,数据线通过向子像素施加不同的数据电压信号,使子像素显示不同的灰阶,从而实现全彩画面的显示。
【发明内容】
本申请主要解决的技术问题是提供一种多路复用型驱动电路以及驱动方法、显示设备,能够避免第三子像素充电时长不足造成的色偏,提高了显示器的显示质量。
为解决上述技术问题,本申请采用的一个技术方案是:提供一种多路复用型驱动电路,用于显示设备,其中,该多路复用型驱动电路包括多条扫描信号线、多条数据信号线、以及所述多条扫描线和所述多条数据线围设形成的阵列分布的子像素;所述多路复用型驱动电路还包括:第一开关、第二开关和第三开关,其输入端输入数据信号;第四开关、第五开关和第六开关,其输入端分别耦接所述第一开关、所述第二开关和所述第三开关的输出端,其输出端分别耦接同一像素单元中相邻的第一子像素、第二子像素和第三子像素,其中,所述第一子像素、所述第二子像素和所述第三子像素分别为红色子像素、绿色子像素和蓝色子像素,所述第一开关、所述第二开关、所述第三开关、所述第四开关、所述第五开关和所述第六开关为N型场效应管;其中,所述多路复用型驱动电路采用以下方式进行驱动:开启所述第四开关、所述第五开关和所述第六开关;控制所述第一开关的开启和关闭,给所述第一子像素输入数据信号;控制所述第二开关的开启和关闭,给所述第二子像素输入数据信号;控制所述第三开关的开启和所述第六开关的关闭,给所述第三子像素输入数据信号;在所述第六开关关闭之后关闭所述第三开关,使得给所述第一子像素、所述第二子像素和所述第三子像素输入数据信号的时长一致。
为解决上述技术问题,本申请采用的另一个技术方案是:提供一种多路复用型驱动电路的驱动方法,该多路复用型驱动电路包括:第一开关、第二开关和第三开关,其输入端输入数据信号;第四开关、第五开关和第六开关,其输入端分别耦接第一开关、第二开关和第三开关的输出端,其输出端分别耦接同一像素单元中相邻的第一子像素、第二子像素和第三子像素;该驱动方法包括:开启第四开关、第五开关和第六开关;控制第一开关的开启和关闭,给第一子像素输入数据信号;控制第二开关的开启和关闭,给第二子像素输入数据信号;控制第三开关的开启和第六开关的关闭,给第三子像素输入数据信号;在第六开关关闭之后关闭第三开关,使得给第一子像素、第二子像素和第三子像素输入数据信号的时长一致。
为解决上述技术问题,本申请采用的另一个技术方案是:提供一种显示设备,该显示设备包括如上述的多路复用型驱动电路。
本申请的有益效果是:区别于现有技术的情况,本申请提供的多路复用型驱动电路包括:第一开关、第二开关和第三开关,其输入端输入数据信号;第四开关、第五开关和第六开关,其输入端分别耦接第一开关、第二开关和第三开关的输出端,其输出端分别耦接同一像素单元中相邻的第一子像素、第二子像素和第三子像素;驱动方法包括:开启第四开关、第五开关和第六开关;控制第一开关的开启和关闭,给第一子像素输入数据信号;控制第二开关的开启和关闭,给第二子像素输入数据信号;控制第三开关的开启和第六开关的关闭,给第三子像素输入数据信号;在第六开关关闭之后关闭第三开关,使得给第一子像素、第二子像素和第三子像素输入数据信号的时长一致。通过上述方式,通过调节第一开关、第二开关和第三开关的开启和关闭时间,保证了每个子像素的充电时间一致,避免了某一子像素发光时间不足造成的色偏,提高了显示器的显示质量。
【附图说明】
为了更清楚地说明本申请实施例中的技术方案,下面将对实施例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申请的一些实施例,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。其中:
图1是本申请提供的多路复用型驱动电路的结构示意图;
图2是现有的多路复用型驱动电路的一信号示意图;
图3是现有的多路复用型驱动电路的另一信号示意图;
图4是本申请提供的多路复用型驱动电路的驱动方法第一实施例的流程示意图;
图5是本申请提供的多路复用型驱动电路的驱动方法第二实施例的流程示意图;
图6是图5的信号示意图;
图7是本申请提供的多路复用型驱动电路的驱动方法第三实施例的流程示意图;
图8是图7的信号示意图;
图9是本申请提供的多路复用型驱动电路的驱动方法第四实施例的流程示意图;
图10是图9的信号示意图;
图11是本申请提供的多路复用型驱动电路的驱动方法第五实施例的流程示意图;
图12是图11的信号示意图;
图13是本申请提供的显示设备一实施例的结构示意图。
【具体实施方式】
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述。可以理解的是,此处所描述的具体实施例仅用于解释本申请,而非对本申请的限定。另外还需要说明的是,为了便于描述,附图中仅示出了与本申请相关的部分而非全部结构。基于本申请中的实施例,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,都属于本申请保护的范围。
本申请中的术语“第一”、“第二”等是用于区别不同对象,而不是用于描述特定顺序。此外,术语“包括”和“具有”以及它们任何变形,意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元,而是可选地还包括没有列出的步骤或单元,或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。
在本文中提及“实施例”意味着,结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例,也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是,本文所描述的实施例可以与其它实施例相结合。
参阅图1,图1是本申请提供的多路复用型驱动电路的结构示意图,该多路复用型驱动电路包括多个驱动单元100。
驱动单元100也叫解多工器(DEMUX,de-multiplexer),利用开关对data信号输入进行时分多工,以减少data信号电路的数量和成本。可选的,在本实施例中,同一data信号通过时分多工之后驱动三列的子像素。
以图1为例,每个驱动单元至少包括第一开关T1、第二开关T2以及第三开关T3,其输入端均通入数据信号data。
另外,每个子像素中也包括一开关,以同一像素单元中相邻的第一子像素、第二子像素和第三子像素为例,第一子像素中设置有第四开关T4,第二子像素中设置有第五开关T5,第三子像素中设置有第六开关T6,第四开关T4、第五开关T5和第六开关T6的输入端分别耦接第一开关T1、第二开关T2和第三开关T3的输出端,其输出端分别耦接第一子像素、第二子像素和第三子像素。
可选的,在本实施例中,第一子像素、第二子像素和第三子像素分别为同一像素单元中的红色子像素R、绿色子像素G和蓝色子像素B。
可选的,在本实施例中,第一开关T1、第二开关T2和第三开关T3的控制端分别输入第一控制信号SW1、第二控制信号SW2和第三控制信号SW3。其中,这些开关可以是场效应管,采用不同的电平可以控制场效应管的打开和关闭,例如,若控制信号为第一电平,可以控制开关打开,若控制信号为第二电平,可以控制开关关闭。具体以N型场效应管为例,若控制信号为高电平,则开关打开,若控制信号为低电平,则开关关闭。当然,在其他实施例中,也可以采用P型场效应管,则控制信号为低电平时打开,控制信号为高电平时关闭。
可选的,第四开关T4、第五开关T5和第六开关T6一般为薄膜晶体管(TFT),该开关的的控制端耦接栅极线,接收扫描信号gate,输入端耦接数据线,接收数据信号,输出端耦接子像素的像素电极,以在该开关打开的时候利用数据信号提供的电压对像素电极进行充电,进而实现显示。
可以理解的,在本实施例中,每个子像素需要相应的两个开关同时打开时,数据信号data才能输入至子像素的像素电极进行充电,例如,在第一开关T1和第四开关T4同时打开时,数据信号data才能输入至第一子像素的像素电极,对该像素进行充电。
另外,本实施例中仅以一个像素中的三个子像素进行举例说明,显示面板中一般包括阵列排布的多个像素,如图1所示,第二行的三个子像素耦接第二条栅极驱动线,这里不再赘述。
结合图1和图2,图2是现有的多路复用型驱动电路的一信号示意图。数据信号的每个周期依次包括第一子周期、第二子周期和第三子周期;第一开关T1、第二开关T2以及第三开关T3分别在对应第一子周期、第二子周期和第三子周期时打开,以通过数据信号对相应的子像素充电。第一开关T1、第二开关T2以及第三开关T3的控制端分别通入第一控制信号SW1、第二控制信号SW2和第三控制信号SW3,用于在控制信号为第一电平时,控制相应的开关开启,以及用于在控制信号为第二电平时,控制相应的开关关闭。
具体地,在第一周期,对第一行进行扫描,gate1为高电平,T4、T5、T6均打开。进一步,该周期划分为三个子周期,在第一子周期内,SW1为高电平,T1打开,data信号对第一子像素进行充电,在第二子周期内,SW2为高电平,T2打开,data信号对第二子像素进行充电,在第三子周期内,SW3为高电平,T3打开,data信号对第三子像素进行充电。值得注意的是,这里的第一子像素、第二子像素、第三子像素为第一行像素中某一像素单元的三个子像素。
同理,对第二行进行扫描时,gate2为高电平,T7、T8、T9均打开。进一步,该周期划分为三个子周期,在第一子周期内,SW1为高电平,T1打开,data信号对第一子像素进行充电,在第二子周期内,SW2为高电平,T2打开,data信号对第二子像素进行充电,在第三子周期内,SW3为高电平,T3打开,data信号对第三子像素进行充电。值得注意的是,这里的第一子像素、第二子像素、第三子像素为第二行像素中某一像素单元的三个子像素。
结合图1和图3,图3是现有的多路复用型驱动电路的另一信号示意图。可以理解的,显示装置一般按照逐行扫描的方式进行,在第一行扫描完成之后,gate1变为低电平,令T4、T5、T6关闭。为了防止场效应管关闭不及时引起的数据信号错充的问题,一般会提前令gate1变为低电平。
以第一行像素为例,从图3中可以看出,SW1、SW2和SW3的高电平持续时间t1、t2和t3是相等的,但是在SW3的高电平持续期间,即T3还未关闭时,gate1已经降低为低电平使得T7、T8和T9关闭,这就导致了第三子像素(即蓝色子像素)充电时间(SW3和gate1同时为高电平的时间)不足,造成色偏。具体来说,第一子像素的充电时间为t1,第二子像素的充电时间为t2,第三子像素的充电时间小于t3,仅仅只有在SW3和gate1同时为高电平的t3’时间内,才进行充电。
下面通过几种驱动方法的实施例来解决上述问题。
结合图1和图4,图4是本申请提供的多路复用型驱动电路的驱动方法第一实施例的流程示意图,该驱动方法包括:
步骤41:开启第四开关、第五开关和第六开关。
这里主要是通过向第一子像素、第二子像素和第三子像素所在行的扫描线通高电平信号来实现的。
步骤42:控制第一开关的开启和关闭,给第一子像素输入数据信号。
步骤43:控制第二开关的开启和关闭,给第二子像素输入数据信号。
步骤44:控制第三开关的开启和第六开关的关闭,给第三子像素输入数据信号。
步骤42-步骤44中依次开启第一开关T1、第二开关T2和第三开关T3,值得注意的是,这里在第三开关T3关闭之前,就提前关闭了第六开关T6,这样保证了在下一行开关打开时,数据信号data不会错充到下一行的像素。
步骤45:在第六开关关闭之后关闭第三开关,使得给第一子像素、第二子像素和第三子像素输入数据信号的时长一致。
通过步骤45,保证了三个子像素的充电时长一致,下面,通过几种具体的实施例进行说明。
结合图1和图5,图5是本申请提供的多路复用型驱动电路的驱动方法第二实施例的流程示意图,该驱动方法包括:
步骤51:开启第四开关、第五开关和第六开关。
步骤52:在第一子周期开始时,打开第一开关,以及在第一子周期结束之前,提前关闭第一开关。
步骤53:在第二子周期开始时,打开第二开关,以及在第二子周期结束之前,提前关闭第二开关。
步骤54:在第三子周期开始时,打开第三开关,以及在第三子周期结束前,关闭第六开关。
步骤55:在第六开关关闭之后关闭第三开关,使得给第一子像素、第二子像素和第三子像素输入数据信号的时长一致。
结合图6,图6是图5的信号示意图,在本实施例中,将数据信号的每个周期划分为第一子周期、第二子周期和第三子周期。
可以理解的,由于gate的提前关闭,导致第三子像素充电不足而产生色偏,其直接原因是第三子像素的充电时长小于第一子像素和第二子像素。在本实施例中,在原有的基础上提前关闭T1和T2,缩短了T1和T2开启的时长,T3开启的时长不变,从而令T3的开启时长大于T1和T2的开启时长,这样,在T3和T6同时开启时,由于T6的关闭早于T3,导致第三子像素的充电时间缩短后,三个子像素的充电时间仍然能够保持一致,避免色偏。
具体地,以控制信号的上升沿和下降沿来说,第一控制信号SW1的高电平的上升沿对应第一子周期的开始时刻,第一控制信号SW1的高电平的下降沿早于第一子周期的结束时刻,第二控制信号SW2的高电平的上升沿对应第二子周期的开始时刻,第二控制信号SW2的高电平的下降沿早于第二子周期的结束时刻,第三控制信号SW3的高电平的上升沿和下降沿则分别与第三子周期的开始时刻和结束时刻相对应。
可以理解的,采用上述的信号控制方式,则可以调节每个子像素的充电时间,具体控制同一个像素单元中的不同子像素的充电时间保持一致。
结合图1和图7,图7是本申请提供的多路复用型驱动电路的驱动方法第三实施例的流程示意图,该驱动方法包括:
步骤71:开启第四开关、第五开关和第六开关。
步骤72:在第一子周期开始之后,打开第一开关,以及在第一子周期结束时,关闭第一开关。
步骤73:在第二子周期开始之后,打开第二开关,以及在第二子周期结束时,关闭第二开关。
步骤74:在第三子周期开始时,打开第三开关,以及在第三子周期结束前,关闭第六开关。
步骤75:在第六开关关闭之后关闭第三开关,使得给第一子像素、第二子像素和第三子像素输入数据信号的时长一致。
结合图8,图8是图7的信号示意图,在本实施例中,将数据信号的每个周期划分为第一子周期、第二子周期和第三子周期。
可以理解的,由于gate的提前关闭,导致第三子像素充电不足而产生色偏,其直接原因是第三子像素的充电时长小于第一子像素和第二子像素。在本实施例中,在原有的基础上延后开启T1和T2,缩短了T1和T2开启的时长,T3开启的时长不变,从而令T3的开启时长大于T1和T2的开启时长,这样,在T3和T6同时开启时,由于T6的关闭早于T3,导致第三子像素的充电时间缩短后,三个子像素的充电时间仍然能够保持一致,避免色偏。
具体地,以控制信号的上升沿和下降沿来说,第一控制信号SW1的高电平的上升沿迟于第一子周期的开始时刻,第一控制信号SW1的高电平的下降沿对应第一子周期的结束时刻,第二控制信号SW2的高电平的上升沿迟于第二子周期的开始时刻,第二控制信号SW2的高电平的下降沿对应第二子周期的结束时刻,第三控制信号SW3的高电平的上升沿和下降沿则分别与第三子周期的开始时刻和结束时刻相对应。
可以理解的,采用上述的信号控制方式,则可以调节每个子像素的充电时间,具体控制同一个像素单元中的不同子像素的充电时间保持一致。
当然,在其他实施例中,第一控制信号SW1和第二控制信号SW2的高电平的上升沿和下降沿并不一定要和每个子周期的开始时刻和结束时刻相对应,例如,第一控制信号SW1的高电平的上升沿迟于第一子周期的开始时刻,下降沿早于第一子周期的结束时刻,令第一控制信号SW1的高电平持续时间保持在第一子周期内且时间小于第一子周期的时间长度即可。
结合图1和图9,图9是本申请提供的多路复用型驱动电路的驱动方法第四实施例的流程示意图,该驱动方法包括:
步骤91:开启第四开关、第五开关和第六开关。
步骤92:在第一子周期开始时,打开第一开关,以及在第一子周期结束时,关闭第一开关。
步骤93:在第二子周期开始时,打开第二开关,以及在第二子周期结束时,关闭第二开关。
步骤94:在第二子周期开始之前,提前打开第三开关,以及在第三子周期结束前,关闭第六开关。
步骤95:在第六开关关闭之后关闭第三开关,使得给第一子像素、第二子像素和第三子像素输入数据信号的时长一致。
结合图10,图10是图9的信号示意图,在本实施例中,将数据信号的每个周期划分为第一子周期、第二子周期和第三子周期。
可以理解的,由于gate的提前关闭,导致第三子像素充电不足而产生色偏,其直接原因是第三子像素的充电时长小于第一子像素和第二子像素。在本实施例中,在原有的基础上提前开启T3,T3开启的时长延长,从而令T3的开启时长大于T1和T2的开启时长,这样,在T3和T6同时开启时,由于T6的关闭早于T3,导致第三子像素的充电时间缩短后,三个子像素的充电时间仍然能够保持一致,避免色偏。
具体地,第一控制信号SW1的高电平的上升沿和下降沿则分别与第一子周期的开始时刻和结束时刻相对应,第二控制信号SW2的高电平的上升沿和下降沿则分别与第二子周期的开始时刻和结束时刻相对应。在第二子周期结束之前,提前打开T3,在这段时间里,第二子像素和第三子像素同时进行充电。然后,第二控制信号SW2降为低电平,T2关闭,第二子像素停止充电,第三控制信号SW3仍然保持高电平,第T3保持开启,第三子像素继续充电,直到第三子周期结束时,T3才关闭。
通过上述的方式,在gate提前降低为低电平使得第三子像素的像素开关提前关闭时,虽然提前停止结束对第三子像素的充电,但是由于第三子像素提前开始充电,使第三子像素与第一子像素、第二子像素的充电时间相同,保证了每个子像素的充电时间一致,避免了某一基色发光时间不足造成的色偏,提高了显示器的显示质量。
结合图1和图11,图11是本申请提供的多路复用型驱动电路的驱动方法第五实施例的流程示意图,该驱动方法包括:
步骤111:开启第四开关、第五开关和第六开关。
步骤112:在第一子周期开始时,打开第一开关,以及在第一子周期结束时,关闭第一开关。
步骤113:在第二子周期开始之前,提前打开第二开关,以及在第二子周期结束之前,关闭第二开关。
步骤114:在第三子周期开始之前,提前打开第三开关,以及在第三子周期结束前,关闭第六开关。
步骤115:在第六开关关闭之后关闭第三开关,使得给第一子像素、第二子像素和第三子像素输入数据信号的时长一致。
结合图12,图12是图11的信号示意图,在本实施例中,将数据信号的每个周期划分为第一子周期、第二子周期和第三子周期。
区别于上述第四实施例,这里将第二控制信号SW2的上升沿也提前,但是高电平的时长不变。
具体地,第一控制信号SW1的高电平的上升沿和下降沿则分别与第一子周期的开始时刻和结束时刻相对应,第二控制信号SW2的高电平的上升沿早于第一子周期的结束时刻,T2提前打开,在这段时间里,第一子像素和第二子像素同时进行充电,然后第一控制信号SW1降为低电平,T1关闭,第一子像素停止充电,第二控制信号SW2仍然为高电平,T2保持打开。在第二子周期结束之前,提前打开T3,在这段时间里,第二子像素和第三子像素同时进行充电。然后,第二控制信号SW2降为低电平,T2关闭,第二子像素停止充电,第三控制信号SW3仍然保持高电平,第T3保持开启,第三子像素继续充电,直到第三子周期结束时,T3才关闭。
可选的,在本实施例第一子像素和第二子像素同时充电的时长,与第二子像素和第三子像素同时充电的时长是相等的。
参阅图13,图13是本申请提供的显示设备一实施例的结构示意图,该显示设备可以是液晶显示器。
该液晶显示器包括液晶面板131和背光模组132,其中,该液晶面板131的绑定区设置有驱动电路,该驱动电路是如上述各个实施例中提供的多路复用性驱动电路。
可以理解的,该多路复用性驱动电路包括多个驱动单元,每个驱动电路具体用于驱动相邻的三列子像素,通过gate信号和控制信号来控制每个开关的开启和关闭从而实现电路驱动。电路的具体结构和信号可以参考上述各个实施例,这了不再赘述。
以上所述仅为本申请的实施方式,并非因此限制本申请的专利范围,凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换,或直接或间接运用在其他相关的技术领域,均同理包括在本申请的专利保护范围内。
Claims (20)
- 一种多路复用型驱动电路,用于显示设备,其中,包括多条扫描信号线、多条数据信号线、以及所述多条扫描线和所述多条数据线围设形成的阵列分布的子像素;所述多路复用型驱动电路还包括:第一开关、第二开关和第三开关,其输入端输入数据信号;第四开关、第五开关和第六开关,其输入端分别耦接所述第一开关、所述第二开关和所述第三开关的输出端,其输出端分别耦接同一像素单元中相邻的第一子像素、第二子像素和第三子像素,其中,所述第一子像素、所述第二子像素和所述第三子像素分别为红色子像素、绿色子像素和蓝色子像素,所述第一开关、所述第二开关、所述第三开关、所述第四开关、所述第五开关和所述第六开关为N型场效应管;其中,所述多路复用型驱动电路采用以下方式进行驱动:开启所述第四开关、所述第五开关和所述第六开关;控制所述第一开关的开启和关闭,给所述第一子像素输入数据信号;控制所述第二开关的开启和关闭,给所述第二子像素输入数据信号;控制所述第三开关的开启和所述第六开关的关闭,给所述第三子像素输入数据信号;在所述第六开关关闭之后关闭所述第三开关,使得给所述第一子像素、所述第二子像素和所述第三子像素输入数据信号的时长一致。
- 根据权利要求1所述的多路复用型驱动电路,其中,所述数据信号的每个周期依次包括第一子周期、第二子周期和第三子周期;在第一子周期开始时,打开所述第一开关,以及在第一子周期结束之前,提前关闭所述第一开关;在第二子周期开始时,打开所述第二开关,以及在第二子周期结束之前,提前关闭所述第二开关;在第三子周期开始时,打开所述第三开关,以及在第三子周期结束前,关闭所述所述第六开关。
- 根据权利要求1所述的多路复用型驱动电路,其中,所述数据信号的每个周期依次包括第一子周期、第二子周期和第三子周期;在第一子周期开始之后,打开所述第一开关,以及在第一子周期结束时,关闭所述第一开关;在第二子周期开始之后,打开所述第二开关,以及在第二子周期结束时,关闭所述第二开关;在第三子周期开始时,打开所述第三开关,以及在第三子周期结束前,关闭所述第六开关。
- 根据权利要求1所述的多路复用型驱动电路,其中,所述数据信号的每个周期依次包括第一子周期、第二子周期和第三子周期;在第一子周期开始时,打开所述第一开关,以及在第一子周期结束时,关闭所述第一开关;在第二子周期开始时,打开所述第二开关,以及在第二子周期结束时,关闭所述第二开关;在第二子周期开始之前,提前打开所述第三开关,以及在第三子周期结束前,关闭所述第六开关。
- 根据权利要求1所述的多路复用型驱动电路,其中,所述数据信号的每个周期依次包括第一子周期、第二子周期和第三子周期;在第一子周期开始时,打开所述第一开关,以及在第一子周期结束时,关闭所述第一开关;在第二子周期开始之前,提前打开所述第二开关,以及在第二子周期结束之前,关闭所述第二开关;在第三子周期开始之前,提前打开所述第三开关,以及在第三子周期结束前,关闭所述第六开关。
- 根据权利要求1所述的多路复用型驱动电路,其中,所述第一开关、所述第二开关和所述第三开关的控制端分别输入第一控制信号、第二控制信号以及第三控制信号,以分别控制所述第一开关、所述第二开关和所述第三开关的开启和关闭;所述第四开关、所述第五开关和所述第六开关的控制端输入同一扫描驱动信号,以同时控制所述第四开关、所述第五开关和所述第六开关的开启和关闭。
- 一种多路复用型驱动电路的驱动方法,其中,所述多路复用型驱动电路包括:第一开关、第二开关和第三开关,其输入端输入数据信号;第四开关、第五开关和第六开关,其输入端分别耦接所述第一开关、所述第二开关和所述第三开关的输出端,其输出端分别耦接同一像素单元中相邻的第一子像素、第二子像素和第三子像素;所述驱动方法包括:开启所述第四开关、所述第五开关和所述第六开关;控制所述第一开关的开启和关闭,给所述第一子像素输入数据信号;控制所述第二开关的开启和关闭,给所述第二子像素输入数据信号;控制所述第三开关的开启和所述第六开关的关闭,给所述第三子像素输入数据信号;在所述第六开关关闭之后关闭所述第三开关,使得给所述第一子像素、所述第二子像素和所述第三子像素输入数据信号的时长一致。
- 根据权利要求7所述的驱动方法,其中,所述数据信号的每个周期依次包括第一子周期、第二子周期和第三子周期;所述控制所述第一开关开启和关闭的步骤包括:在第一子周期开始时,打开所述第一开关,以及在第一子周期结束之前,提前关闭所述第一开关;所述控制所述第二开关开启和关闭的步骤包括:在第二子周期开始时,打开所述第二开关,以及在第二子周期结束之前,提前关闭所述第二开关;所述控制第三开关的开启和所述第六开关的关闭的步骤包括:在第三子周期开始时,打开所述第三开关,以及在第三子周期结束前,关闭所述所述第六开关。
- 根据权利要求7所述的驱动方法,其中,所述数据信号的每个周期依次包括第一子周期、第二子周期和第三子周期;所述控制所述第一开关开启和关闭的步骤,包括:在第一子周期开始之后,打开所述第一开关,以及在第一子周期结束时,关闭所述第一开关;所述控制所述第二开关开启和关闭的步骤包括:在第二子周期开始之后,打开所述第二开关,以及在第二子周期结束时,关闭所述第二开关;所述所述控制第三开关的开启和所述第六开关的关闭的步骤包括:在第三子周期开始时,打开所述第三开关,以及在第三子周期结束前,关闭所述第六开关。
- 根据权利要求7所述的驱动方法,其中,所述数据信号的每个周期依次包括第一子周期、第二子周期和第三子周期;所述控制所述第一开关开启和关闭的步骤,包括:在第一子周期开始时,打开所述第一开关,以及在第一子周期结束时,关闭所述第一开关;所述控制所述第二开关开启和关闭的步骤包括:在第二子周期开始时,打开所述第二开关,以及在第二子周期结束时,关闭所述第二开关;所述所述控制第三开关的开启和所述第六开关的关闭的步骤包括:在第二子周期开始之前,提前打开所述第三开关,以及在第三子周期结束前,关闭所述第六开关。
- 根据权利要求7所述的驱动方法,其中,所述数据信号的每个周期依次包括第一子周期、第二子周期和第三子周期;所述控制所述第一开关开启和关闭的步骤,包括:在第一子周期开始时,打开所述第一开关,以及在第一子周期结束时,关闭所述第一开关;所述控制所述第二开关开启和关闭的步骤包括:在第二子周期开始之前,提前打开所述第二开关,以及在第二子周期结束之前,关闭所述第二开关;所述所述控制第三开关的开启和所述第六开关的关闭的步骤包括:在第三子周期开始之前,提前打开所述第三开关,以及在第三子周期结束前,关闭所述第六开关。
- 根据权利要求7所述的驱动方法,其中,所述第一开关、所述第二开关和所述第三开关的控制端分别输入第一控制信号、第二控制信号以及第三控制信号,以分别控制所述第一开关、所述第二开关和所述第三开关的开启和关闭;所述第四开关、所述第五开关和所述第六开关的控制端输入同一扫描驱动信号,以同时控制所述第四开关、所述第五开关和所述第六开关的开启和关闭。
- 根据权利要求7所述的驱动方法,其中,所述第一子像素、所述第二子像素和所述第三子像素分别为同一像素单元中的红色子像素、绿色子像素和蓝色子像素。
- 根据权利要求7所述的驱动方法,其中,所述第一开关、所述第二开关、所述第三开关、所述第四开关、所述第五开关和所述第六开关为N型场效应管。
- 一种显示设备,其中,包括多路复用型驱动电路,所述多路复用型驱动电路包括第一开关、第二开关和第三开关,其输入端输入数据信号;第四开关、第五开关和第六开关,其输入端分别耦接所述第一开关、所述第二开关和所述第三开关的输出端,其输出端分别耦接同一像素单元中相邻的第一子像素、第二子像素和第三子像素;其中,所述多路复用型驱动电路采用以下方式进行驱动:开启所述第四开关、所述第五开关和所述第六开关;控制所述第一开关的开启和关闭,给所述第一子像素输入数据信号;控制所述第二开关的开启和关闭,给所述第二子像素输入数据信号;控制所述第三开关的开启和所述第六开关的关闭,给所述第三子像素输入数据信号;在所述第六开关关闭之后关闭所述第三开关,使得给所述第一子像素、所述第二子像素和所述第三子像素输入数据信号的时长一致。
- 根据权利要求15所述的显示设备,其中,所述数据信号的每个周期依次包括第一子周期、第二子周期和第三子周期;在第一子周期开始时,打开所述第一开关,以及在第一子周期结束之前,提前关闭所述第一开关;在第二子周期开始时,打开所述第二开关,以及在第二子周期结束之前,提前关闭所述第二开关;在第三子周期开始时,打开所述第三开关,以及在第三子周期结束前,关闭所述所述第六开关。
- 根据权利要求15所述的显示设备,其中,所述数据信号的每个周期依次包括第一子周期、第二子周期和第三子周期;在第一子周期开始之后,打开所述第一开关,以及在第一子周期结束时,关闭所述第一开关;在第二子周期开始之后,打开所述第二开关,以及在第二子周期结束时,关闭所述第二开关;在第三子周期开始时,打开所述第三开关,以及在第三子周期结束前,关闭所述第六开关。
- 根据权利要求15所述的显示设备,其中,所述数据信号的每个周期依次包括第一子周期、第二子周期和第三子周期;在第一子周期开始时,打开所述第一开关,以及在第一子周期结束时,关闭所述第一开关;在第二子周期开始时,打开所述第二开关,以及在第二子周期结束时,关闭所述第二开关;在第二子周期开始之前,提前打开所述第三开关,以及在第三子周期结束前,关闭所述第六开关。
- 根据权利要求15所述的显示设备,其中,所述数据信号的每个周期依次包括第一子周期、第二子周期和第三子周期;在第一子周期开始时,打开所述第一开关,以及在第一子周期结束时,关闭所述第一开关;在第二子周期开始之前,提前打开所述第二开关,以及在第二子周期结束之前,关闭所述第二开关;在第三子周期开始之前,提前打开所述第三开关,以及在第三子周期结束前,关闭所述第六开关。
- 根据权利要求15所述的显示设备,其中,所述第一开关、所述第二开关和所述第三开关的控制端分别输入第一控制信号、第二控制信号以及第三控制信号,以分别控制所述第一开关、所述第二开关和所述第三开关的开启和关闭;所述第四开关、所述第五开关和所述第六开关的控制端输入同一扫描驱动信号,以同时控制所述第四开关、所述第五开关和所述第六开关的开启和关闭。
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| CN116710995A (zh) * | 2021-11-26 | 2023-09-05 | 京东方科技集团股份有限公司 | 像素阵列驱动方法、装置和显示面板 |
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| CN109754769A (zh) * | 2019-03-18 | 2019-05-14 | 武汉华星光电技术有限公司 | 显示面板的驱动方法 |
| TWI736862B (zh) * | 2019-03-21 | 2021-08-21 | 友達光電股份有限公司 | 發光二極體顯示面板 |
| CN110599974B (zh) * | 2019-08-28 | 2021-08-06 | 南京中电熊猫液晶显示科技有限公司 | 一种液晶显示装置 |
| CN110910845A (zh) * | 2019-11-18 | 2020-03-24 | 福建华佳彩有限公司 | Dot显示的驱动方法 |
| CN111179872B (zh) * | 2020-02-19 | 2021-08-20 | 福建华佳彩有限公司 | 一种像素驱动方法 |
| CN112037721B (zh) * | 2020-08-06 | 2022-02-22 | 武汉华星光电技术有限公司 | Goa电路及其显示面板、显示装置 |
| CN112289268A (zh) * | 2020-11-02 | 2021-01-29 | 武汉华星光电技术有限公司 | 显示面板的驱动方法及装置 |
| CN116645899B (zh) * | 2022-02-16 | 2026-03-03 | 北京小米移动软件有限公司 | 基于多路选择器Mux的充电方法、装置及显示设备 |
| CN114758605B (zh) * | 2022-05-11 | 2023-03-24 | 福建华佳彩有限公司 | 一种demux驱动电路及其控制方法 |
| CN115223481A (zh) * | 2022-07-28 | 2022-10-21 | 福建华佳彩有限公司 | 一种新型显示驱动方法 |
| CN117496909B (zh) * | 2023-03-17 | 2026-01-02 | 惠州华星光电显示有限公司 | 显示面板及其驱动方法、电子装置 |
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| CN116710995A (zh) * | 2021-11-26 | 2023-09-05 | 京东方科技集团股份有限公司 | 像素阵列驱动方法、装置和显示面板 |
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| CN108615495B (zh) | 2019-08-02 |
| CN108615495A (zh) | 2018-10-02 |
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