WO2018192022A1 - 显示面板的控制电路、显示装置及其控制方法 - Google Patents

显示面板的控制电路、显示装置及其控制方法 Download PDF

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Publication number
WO2018192022A1
WO2018192022A1 PCT/CN2017/083746 CN2017083746W WO2018192022A1 WO 2018192022 A1 WO2018192022 A1 WO 2018192022A1 CN 2017083746 W CN2017083746 W CN 2017083746W WO 2018192022 A1 WO2018192022 A1 WO 2018192022A1
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Prior art keywords
switch
control
signal line
display
input end
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2017/083746
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English (en)
French (fr)
Inventor
陈猷仁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HKC Co Ltd
Chongqing HKC Optoelectronics Technology Co Ltd
Original Assignee
HKC Co Ltd
Chongqing HKC Optoelectronics Technology Co Ltd
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Publication date
Application filed by HKC Co Ltd, Chongqing HKC Optoelectronics Technology Co Ltd filed Critical HKC Co Ltd
Priority to US15/556,358 priority Critical patent/US20190385547A1/en
Publication of WO2018192022A1 publication Critical patent/WO2018192022A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/2092Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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
    • G09G3/3611Control of matrices with row and column drivers
    • G09G3/3648Control of matrices with row and column drivers using an active matrix
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2370/00Aspects of data communication
    • G09G2370/08Details of image data interface between the display device controller and the data line driver circuit
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/2092Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto
    • G09G3/2096Details of the interface to the display terminal specific for a flat panel

Definitions

  • the present disclosure relates to the field of display technologies, for example, to a control circuit of a display panel, a display device, and a control method thereof.
  • the thin film transistor display panel comprises a plurality of thin film transistors, each thin film transistor is electrically connected to a corresponding pixel unit in the display panel, and the display panel can control the thin film transistor through a driving chip disposed in a non-display area of the display panel to control the display panel display
  • the pixel unit of the area realizes the control of the display function of the display panel.
  • the driving chip When it is necessary to adjust the predetermined parameters in the display panel, that is, when data needs to be written to the display panel, the driving chip needs to be electrically connected to the communication bus outside the display panel, and the communication bus writes data to the display panel through the driving chip.
  • the communication bus writes data to the driver chip
  • the display panel calls the written data to implement the control function on the display panel.
  • the communication bus outside the display panel is generally disposed on the system motherboard, when the communication bus writes data to the driving chip, part of the resistor and capacitor on the system board affects the control panel to control the display panel through the communication bus, causing the display panel to be abnormal. Not even working.
  • the present disclosure provides a control circuit, a display device and a control method thereof for a display panel, which avoids the resistance of the display control module to the display control circuit after the communication bus is written to the display control module. Causes the display panel to be abnormal or unable to work.
  • the present disclosure provides a control circuit for a display panel, including: at least one of a first switch and a second switch, a communication bus, a display control circuit, and a display driving circuit;
  • the communication bus includes a clock signal line and a data signal line;
  • the display control circuit includes a first signal input end, a second signal input end, and a signal output end, the first signal input end is electrically connected to the clock signal line, and the second signal input end is The data signal line is electrically connected, and the signal output end is electrically connected to the display driving circuit;
  • the first switch is disposed between the first signal input end and the clock signal line, the first control end of the first switch is electrically connected to the first control signal line, and the second switch is disposed at the Between the second signal input end and the data signal line, the first control end of the second switch is electrically connected to the second control signal line.
  • the present disclosure provides a display device including a control circuit of a display panel, a display panel, and a display driving circuit, wherein
  • the control circuit of the display panel includes: at least one of a first switch and a second switch, a communication bus, a display control circuit, and a display drive circuit; wherein the communication bus includes a clock signal line and a data signal line;
  • the display control circuit includes a first signal input end, a second signal input end, and a signal output end, the first signal input end is electrically connected to the clock signal line, and the second signal input end is electrically connected to the data signal line Connected, the signal output end is electrically connected to the display driving circuit; and the first switch is disposed between the first signal input end and the clock signal line, and the first control end of the first switch Electrically connected to the first control signal line, the second switch is disposed between the second signal input end and the data signal line, and the first control end of the second switch is electrically connected to the second control signal line ;
  • the display driving circuit includes a plurality of source driving circuits and a plurality of gate side driving circuits;
  • Each of the source driving circuits includes a plurality of input terminals and a plurality of output terminals, and an input end of each of the source driving circuits is electrically connected to the display control circuit;
  • the output ends of the plurality of source driving circuits are electrically connected to the corresponding gate side driving circuits through the traces of the non-display area of the display panel.
  • the present disclosure provides a control method of a display device, including: a control circuit of a display panel, a display panel, and a display driving circuit, wherein
  • the control circuit of the display panel includes: at least one of a first switch and a second switch, a communication bus, a display control circuit, and a display drive circuit; wherein the communication bus includes a clock signal line and a data signal line;
  • the display control circuit includes a first signal input end, a second signal input end, and a signal output end, the first signal input end is electrically connected to the clock signal line, and the second signal input end is electrically connected to the data signal line Connected, the signal output end is electrically connected to the display driving circuit; and the first switch is disposed between the first signal input end and the clock signal line, the first a first control end of the switch is electrically connected to the first control signal line, the second switch is disposed between the second signal input end and the data signal line, and the first control end of the second switch is The second control signal line is electrically connected;
  • the display driving circuit includes a plurality of source driving circuits and a plurality of gate side driving circuits; wherein each of the source driving circuits includes a plurality of input terminals and a plurality of output terminals, and an input end of each of the source driving circuits Electrically connecting with the display control circuit; and an output end of the plurality of source driving circuits is electrically connected to the corresponding gate side driving circuit through a trace of the non-display area of the display panel;
  • the control method includes at least one of the following operations:
  • the first switch When the communication bus writes data to the display control circuit, the first switch is controlled to open by the first control signal line, and a clock signal is output to the display control circuit, and the communication bus is When the display control circuit writes the data, the first switch is turned off by the first control signal line;
  • the second switch When the communication bus writes data to the display control circuit, the second switch is controlled to open by the second control signal line, and a data signal is output to the display control circuit, and the communication bus is When the display control circuit writes the data, the second switch is turned off by the second control signal line.
  • the present disclosure further provides a control circuit for a display panel, including: a first switch, a second switch, a communication bus, a display control circuit, and a display driving circuit;
  • the communication bus includes a clock signal line and a data signal line;
  • the display control circuit includes a first signal input end, a second signal input end, and a signal output end, the first signal input end is electrically connected to the clock signal line, and the second signal input end and the data signal are a line electrical connection, the signal output end is electrically connected to the display driving circuit;
  • the first switch is disposed between the first signal input end and the clock signal line, the first control end of the first switch is electrically connected to the first control signal line, and the second switch is disposed at the Between the second signal input end and the data signal line, the first control end of the second switch is electrically connected to the second control signal line;
  • the first switch and the second switch each comprise an insulated gate field effect transistor, and the first control end of the first switch and the first control end of the second switch are gates of the insulated gate field effect transistor, the first of the first switch The input end and the first output end of the first switch are respectively the source and the drain of the insulated gate field effect transistor, and the second switch The first output of an input terminal and the second switch are respectively a source and a drain of the insulated gate field effect transistor.
  • the present disclosure provides a control circuit for a display panel, a display device, and a control method thereof, wherein the control circuit of the display panel includes at least one of a first switch and a second switch, a communication bus, a display control circuit, and a display drive circuit.
  • the communication bus includes a clock signal line and a data signal line.
  • the display control circuit includes a first signal input end, a second signal input end, and a signal output end. The first signal input end is electrically connected to the clock signal line, and the second signal input end and the data are connected.
  • the signal line is electrically connected, and the signal output end is electrically connected to the display driving circuit.
  • the first switch is disposed between the first signal input end and the clock signal line, and the first control end of the first switch is electrically connected to the first control signal line.
  • the second switch is disposed between the second signal input end and the data signal line, and the first control end of the second switch is electrically connected to the second control signal line.
  • the first switch can control the communication and the shutdown between the clock signal line and the display control circuit in the communication bus, and the second switch can control the communication and the shutdown between the data signal line and the display control circuit in the communication bus. That is, after the communication bus is written to the display panel by the first switch and the second switch, the communication between the communication bus and the display control circuit can be interrupted, and the communication bus is prevented from writing data to the display control circuit.
  • the resistors and capacitors connected to the communication bus affect the display control module's control of the display driver circuit, resulting in an abnormal display panel or even inoperability.
  • FIG. 1 is a schematic structural diagram 1 of a control circuit of a display panel according to an embodiment
  • FIG. 2 is a second schematic structural diagram of a control circuit of a display panel according to an embodiment
  • FIG. 3 is a schematic structural diagram 3 of a control circuit of a display panel according to an embodiment
  • FIG. 4 is a schematic structural diagram of a display device according to an embodiment
  • FIG. 5 is a schematic flow chart of a method for controlling a display device according to an embodiment.
  • FIG. 1 is a schematic structural diagram of a control circuit of a display panel according to the embodiment.
  • the control circuit of the display panel includes a communication bus 10 , a display control module (also referred to as a display control circuit) 20 , and a display driving circuit. 30.
  • the communication bus 10 includes a clock signal line 101 and a data signal line 102.
  • the display control module 20 includes a first signal input terminal A1, a second signal input terminal A2, and a signal output terminal A3.
  • the first signal input terminal A1 and the clock signal line The 101 signal is electrically connected, the second signal input terminal A2 is electrically connected to the data signal line 102, and the signal output terminal A3 is electrically connected to the display driving circuit 30.
  • a first switch 41 is disposed between the first signal input terminal A1 and the clock signal line 101, and the first control terminal B1 of the first switch 41 is electrically connected to the first control signal line 51, and the second signal input terminal is A second switch 42 is disposed between A2 and the data signal line 102, and the second control terminal C1 of the second switch 42 is electrically connected to the second control signal line 52.
  • the control circuit of the display panel may include a first switch 41, and the first switch 41 is connected in series between the first signal input terminal A1 and the clock signal line 101, and the first control terminal B1 of the first switch 41
  • the first control signal line 51 is electrically connected; or, as shown in FIG. 2, the control circuit of the display panel may include a second switch 42 and the second switch 42 is connected in series to the second signal input terminal A2 and the data signal line 102.
  • the first control terminal C1 of the second switch 42 is electrically connected to the second control signal line 52; or as shown in FIG. 3, the control circuit of the display panel may include the first switch 41 and the second switch 42 at the same time, and A switch 41 is connected in series between the first signal input terminal A1 and the clock signal line 101.
  • the first control terminal B1 of the first switch 41 is electrically connected to the first control signal line 51, and the second switch 42 is connected in series to the second signal input. Between the terminal A2 and the data signal line 102, the second control terminal C1 of the second switch 42 is electrically connected to the second control signal line 52.
  • a second switch 42 is provided between the second signal input terminal A2 and the data signal line 102, and the communication bus 10 is provided.
  • the stage in which data can be written to the display control module 20 can be controlled by the first switch 41 and the second switch 42 to control the communication between the communication bus 10 and the display control module 20, so that the communication bus 10 writes data to the display control module 20.
  • the communication bus 10 writes data to the display control module 20
  • the communication between the communication bus 10 and the display control module 20 can be controlled by the first switch 41 and the second switch 42 to avoid the influence of the resistor and capacitor connected to the communication bus 10.
  • the display control module 20 controls the display drive circuit 30, causing the display panel to be abnormal or even inoperable.
  • the communication bus 10 includes a two-wire serial bus
  • the clock signal line 101 includes a serial clock.
  • the signal lines, as well as the data signal lines 102, comprise serial data signal lines.
  • the two-wire serial bus can be electrically connected to the display control module 20 through the serial clock signal line and the serial data signal line, and write data to the display control module 20 through the serial clock signal line and the serial data signal line. Adjustments to the established parameters in the display control module 20.
  • the two-wire serial bus performs data transmission, data transmission can be realized through the serial clock signal line and the serial data signal line, the circuit structure is simple and the space is small, and the pin connecting the display control module 20 and the communication bus 10 can be reduced. quantity.
  • the first switch 41 and the second switch 42 are located in the non-display area BB of the display panel.
  • the non-display area BB of the display panel may include a fan-out area for the trace, and the fan-out area may include a plurality of switches.
  • the switch in the fan-out area BB1 may be utilized as the first switch 41.
  • a second switch 42 without increasing the number of components in the display panel, the communication bus 10 can write data to the display control module 20, and at the stage of writing the data, through the first switch 41 and the second of the fan-out area of the display panel.
  • the switch 42 controls the communication state between the communication bus 10 and the display control module 20, thereby enabling the communication bus 10 to write data to the display control module 20 and avoiding the communication bus 10 writing data to the display control module 20.
  • the resistance capacitance connected to the communication bus 10 affects the display control module 20's control of the display drive circuit 30, resulting in a display panel that is abnormal or even inoperable.
  • the control circuit of the display panel includes a first switch 41 and a second switch 42, wherein the first switch 41 can include a first control terminal B1, a first input terminal B2 and a first output terminal. B3, the first input terminal B2 is electrically connected to the clock signal line 101, the first output terminal B3 is electrically connected to the first signal input terminal A1, and the first switch 41 can control the first input terminal B2 according to the control signal of the first control terminal B1.
  • the second switch 42 can include a first control terminal C1, a second input terminal C2 and a second output terminal C3.
  • the second input terminal C2 is electrically connected to the data signal line 102, and the second output terminal C3 and the second signal input terminal A2 are electrically connected.
  • the second switch 42 can control the communication state of the second input terminal C2 and the second output terminal C3 according to the control signal of the second control terminal C1.
  • the first switch 41 and the second switch 42 may each include an insulated gate field effect transistor, and the first control terminal B1 and the second control terminal C1 may be the gate of the insulated gate field effect transistor, the first input.
  • the terminal B2 and the first output terminal B3 may be the source and the drain of the insulated gate field effect transistor, respectively, and the second input terminal C2 and the second output terminal C3 may be the source and the drain of the insulated gate field effect transistor, respectively.
  • the first switch 41 can control the communication state between the first input terminal B2 and the first output terminal B3 according to the control signal of the first control terminal B1, for example, a level signal, that is, control the clock signal line 101 and the display control module 20 The connected state of the first signal input terminal A1.
  • the second switch 42 can control the communication state of the second input terminal C2 and the second output terminal C3 according to the control signal of the second control terminal C1, for example, a level signal, that is, the control data signal line 102 and the display control module 20 The connected state of the second signal input terminal A2.
  • a first switch 41 is disposed between the first signal input terminal A1 and the clock signal line 101 , and the first control terminal B1 of the first switch 41 is electrically connected to the first control signal line 51 .
  • a second switch 42 is disposed between the second signal input terminal A2 and the data signal line 102, and the second control terminal C1 of the second switch 42 is electrically connected to the second control signal line 52.
  • the first control signal line 51 can be disposed.
  • the second control signal line 52 is electrically connected, that is, the first control signal line 51 and the second control signal line 52 can cause the first switch 41 and the second switch 42 to be simultaneously turned on or off.
  • the clock signal line 101 and the data signal line 102 can be simultaneously controlled to simultaneously write data to the display control module 20 through the first switch 41 and the second switch 42 by simultaneously controlling the opening of the first switch 41 and the second switch 42; or on the communication bus 10
  • the first switch 41 and the second switch 42 are simultaneously controlled to be turned off.
  • the communication bus 10 may further include a write protection line 103, and the write protection line 103 may be disposed to be electrically connected to the first control signal line 51 and the second control signal line 52, and the communication bus is utilized without additional lines added.
  • the write protection line 103 in 10 effects control of the first switch 41 and the second switch 42.
  • the display device includes a control circuit (not shown) of the display panel of the above embodiment. As shown in FIG. 2, the display device further includes a display panel 60 and a display driver.
  • the circuit 30, the display driving circuit 30 includes a plurality of source driving modules (also referred to as source driving circuits) 301 and a plurality of gate side driving modules (also referred to as gate side driving circuits) 302, each of which includes a plurality of source driving modules 301
  • the input end and the plurality of output ends are electrically connected to the display control module 20.
  • the display panel 60 includes a display area AA and a non-display area, and some of the output ends pass through the traces in the non-display area of the display panel 60, for example, may be a fan.
  • the trace of the area BB1 is electrically connected to the corresponding gate side drive module 302.
  • the source driving module 301 can acquire a data signal through an input terminal electrically connected to the display control module 20, and electrically connect the source of the thin film transistor in the display panel 60 through a partial output end, and transmit the data signal to A pixel unit corresponding to a thin film transistor.
  • the source driving circuit can also obtain the scan signal provided by the display control module 20 through a part of the input end, and pass through a part of the output end, which is electrically connected to the source of the thin film transistor in the display panel 60, and the remaining part of the output end and the door side driving module.
  • the 302 is electrically connected to provide a scan signal to the door side drive module 302.
  • the gate side driving module 302 can be electrically connected to the gate of the thin film transistor in the display panel 60, and the gate of the thin film transistor controls the image according to the scanning signal. Whether the prime unit is illuminated.
  • the partial output end of the source driving module 301 can be electrically connected to the corresponding door side driving module 302 through the trace of the non-display area of the display panel 60, for example, by the fan-out area BB1 mentioned in the above embodiment.
  • the traces are electrically connected to the corresponding gate side drive module 302.
  • the display driving circuit 30 may further include a plurality of flexible circuit boards 303 connected in series between the display control module 20 and the source driving module 301.
  • FIG. 2 exemplarily sets the display driving circuit 30 to include two Flexible circuit board 303.
  • the electrical connection between the display control module 20 and the source driving module 301 is realized by the flexible circuit board 303.
  • the display control module 20 can transmit an electrical signal to the source driving module 301 through the flexible circuit board 303, and at the same time, the flexible circuit board 303 can reduce the display panel.
  • the area of the 60 non-display area can realize the narrow border of the display panel 60.
  • the display driving circuit 30 further includes at least one signal transmission module (also referred to as a signal transmission circuit) 304.
  • the signal transmission module 304 is connected in series between the display control module 20 and the source driving module 301.
  • FIG. 2 exemplarily sets the display drive circuit 30 to include two signal transmission modules 304.
  • the signal transmission module 304 may include a printed circuit board.
  • the display control module 20 When the display control module 20 is electrically connected to the source driving module 301 through the flexible wiring board 303, the number of pins in the flexible circuit board 303 and the source driving module 301 is There is a difference, and the signal transmission module 304 can be used, for example, a printed circuit board, which can eliminate the difference between the pins between the flexible circuit board 303 and the source driving module 301, and realize the power between the flexible circuit board 303 and the source driving module 301. connection.
  • FIG. 3 is a schematic flowchart of a display device control method according to an embodiment of the present invention.
  • the control method may be applied to a control panel of the display panel provided by the foregoing embodiment.
  • step 110 when the communication bus writes data to the display control module, the first switch is controlled to be turned on by the first control signal line, and the clock signal is output to the display control module.
  • the first control terminal of the first switch may be controlled by the first control signal line to enable the first switch to be opened, and the clock in the communication bus
  • the signal line outputs a clock signal to a first input of the display control module.
  • step 120 when the communication bus writes data to the display control module, the first switch is turned off by the first control signal line.
  • the first control terminal of the first switch can be controlled by the first control signal line to turn off the first switch, thereby avoiding electrical connection with the clock signal line in the communication bus.
  • the resistance and capacitance lines affect the display control module's control of the display driver circuit, resulting in significant The display panel exception does not even work.
  • step 130 when the communication bus writes data to the display control module, the second switch is controlled to be turned on by the second control signal line to output a data signal to the display control module.
  • the second control terminal of the second switch can be controlled to open the second switch through the second control signal line, and the data signal in the communication bus The line outputs a data signal to the second input of the display control module.
  • step 140 when the communication bus writes data to the display control module, the second switch is turned off by the second control signal line.
  • the second control terminal of the second switch can be controlled by the second control signal line to turn off the second switch, thereby avoiding electrical connection with the data signal line in the communication bus.
  • the resistor-capacitor line affects the display control module's control of the display driver circuit, causing the display panel to be abnormal or even inoperable.
  • the control circuit of the display panel may include a first switch or a second switch; and may also include a first switch and a second switch.
  • the above steps 110 to 140 are merely exemplarily given to the control method for the display device when the control circuit of the display panel includes both the first switch and the second switch.
  • the control method of the display device may include steps 110 and 120.
  • the control method of the display device may include steps 130 and 140.
  • the communication control bus includes a clock signal line and a data signal line.
  • the display control module includes a first signal input end, a second signal input end, and a signal output end.
  • the first signal input end is electrically connected to the clock signal line, and the second The signal input end is electrically connected to the data signal line, and the signal output end is electrically connected to the display drive circuit.
  • a first switch is disposed between the first signal input end and the clock signal line, and the control end of the first switch is electrically connected to the first control signal line; and the second switch is disposed between the second signal input end and the data signal line.
  • the control end of the second switch is electrically connected to the second control signal line; or a first switch is disposed between the first signal input end and the clock signal line, and the control end of the first switch is electrically connected to the first control signal line, A second switch is disposed between the second signal input end and the data signal line, and the control end of the second switch is electrically connected to the second control signal line.
  • the communication and disconnection between the data signal line and the display control module in the communication bus can be controlled by the second switch , that is, using the first switch and the second switch, after the communication bus writes data to the display panel, the communication bus and the display control module are blocked
  • the communication avoids part of the resistors and capacitors on the system board from affecting the control panel's control of the display panel through the communication bus, resulting in abnormality of the display panel or even failure to work.
  • the control circuit, the display device and the control method thereof of the display panel provided by the disclosure prevent the resistance capacitance connected to the communication bus from affecting the control of the display control circuit by the display control module, resulting in abnormality or inoperability of the display panel.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

一种显示面板(60)的控制电路、显示装置及其控制方法,其中,显示面板(60)的控制电路包括第一开关(41)和第二开关(42)中的至少一个、通信总线(10)、显示控制电路(20)和显示驱动电路(30),其中,通信总线(10)包括时钟信号线(101)和数据信号线(102);显示控制电路(20)包括第一信号输入端(A1)、第二信号输入端(A2)以及信号输出端(A3),第一信号输入端(A1)与时钟信号线(101)电连接,第二信号输入端(A2)与数据信号线(102)电连接,信号输出端(A3)与显示驱动电路(30)电连接;以及第一开关(41)设置在第一信号输入端(A1)与时钟信号线(101)之间,第一开关(41)的第一控制端(B1)与第一控制信号线(51)电连接,第二开关(42)设置在第二信号输入端(A2)与数据信号线(102)之间,第二开关(42)的第一控制端(C1)与第二控制信号线(52)电连接。

Description

显示面板的控制电路、显示装置及其控制方法 技术领域
本公开涉及显示技术领域,例如涉及一种显示面板的控制电路、显示装置及其控制方法。
背景技术
随着显示面板的发展,薄膜晶体管显示面板已成为多类电子产品中的重要显示平台。薄膜晶体管显示面板包括多个薄膜晶体管,每一薄膜晶体管与显示面板中对应的像素单元电连接,显示面板可以通过设置在显示面板非显示区的驱动芯片,对薄膜晶体管进行控制,控制显示面板显示区的像素单元,实现对显示面板显示功能的控制。
当需要对显示面板中的既定参数进行调整时,即需要向显示面板写入数据时,需要将驱动芯片与显示面板外部的通信总线电连接,通信总线通过驱动芯片向显示面板写入数据。当通信总线向驱动芯片写入数据完毕时,显示面板调用写入的数据实现对显示面板的控制功能。
由于显示面板外部的通信总线一般设置于系统主板上,当通信总线向驱动芯片写入数据完毕后,系统主板上的部分电阻电容通过通信总线影响驱动芯片对显示面板的控制,导致显示面板出现异常甚至无法工作。
发明内容
本公开提供了一种显示面板的控制电路、显示装置及其控制方法,避免了通信总线向显示控制模块写入数据完毕后,与通信总线连接的电阻电容影响显示控制模块对显示驱动电路的控制,导致显示面板异常或者无法工作的现象。
第一方面,本公开提供了一种显示面板的控制电路,包括:第一开关和第二开关中的至少一个、通信总线、显示控制电路以及显示驱动电路;其中,
所述通信总线,包括时钟信号线和数据信号线;
所述显示控制电路,包括第一信号输入端、第二信号输入端,以及信号输出端,所述第一信号输入端与所述时钟信号线电连接,所述第二信号输入端与 所述数据信号线电连接,所述信号输出端与所述显示驱动电路电连接;以及
所述第一开关设置在所述第一信号输入端与所述时钟信号线之间,所述第一开关的第一控制端与第一控制信号线电连接,所述第二开关设置在所述第二信号输入端与所述数据信号线之间,所述第二开关的第一控制端与第二控制信号线电连接。
第二方面,本公开提供了一种显示装置,包括显示面板的控制电路、显示面板及显示驱动电路,其中,
所述显示面板的控制电路,包括:第一开关和第二开关中的至少一个、通信总线、显示控制电路以及显示驱动电路;其中,所述通信总线包括时钟信号线和数据信号线;所述显示控制电路包括第一信号输入端、第二信号输入端以及信号输出端,所述第一信号输入端与所述时钟信号线电连接,所述第二信号输入端与所述数据信号线电连接,所述信号输出端与所述显示驱动电路电连接;以及所述第一开关设置在所述第一信号输入端与所述时钟信号线之间,所述第一开关的第一控制端与第一控制信号线电连接,所述第二开关设置在所述第二信号输入端与所述数据信号线之间,所述第二开关的第一控制端与第二控制信号线电连接;
所述显示驱动电路包括多个源极驱动电路和多个门侧驱动电路;
每个源极驱动电路包括多个输入端和多个输出端,所述每个源极驱动电路的输入端与所述显示控制电路电连接;以及
部分所述多个源极驱动电路的输出端通过所述显示面板的非显示区的走线与对应的门侧驱动电路电连接。
第三方面,本公开提供了一种显示装置的控制方法,所述显示装置包括:显示面板的控制电路、显示面板及显示驱动电路,其中,
所述显示面板的控制电路,包括:第一开关和第二开关中的至少一个、通信总线、显示控制电路以及显示驱动电路;其中,所述通信总线包括时钟信号线和数据信号线;所述显示控制电路包括第一信号输入端、第二信号输入端以及信号输出端,所述第一信号输入端与所述时钟信号线电连接,所述第二信号输入端与所述数据信号线电连接,所述信号输出端与所述显示驱动电路电连接;以及所述第一开关设置在所述第一信号输入端与所述时钟信号线之间,所述第 一开关的第一控制端与第一控制信号线电连接,所述第二开关设置在所述第二信号输入端与所述数据信号线之间,所述第二开关的第一控制端与第二控制信号线电连接;
所述显示驱动电路包括多个源极驱动电路和多个门侧驱动电路;其中,每个源极驱动电路包括多个输入端和多个输出端,所述每个源极驱动电路的输入端与所述显示控制电路电连接;以及部分所述多个源极驱动电路的输出端通过所述显示面板的非显示区的走线与对应的门侧驱动电路电连接;
所述控制方法包括以下至少一种操作:
在所述通信总线向所述显示控制电路写入数据时,通过所述第一控制信号线控制所述第一开关打开,向所述显示控制电路输出时钟信号,在所述通信总线向所述显示控制电路写入数据完毕时,通过所述第一控制信号线控制所述第一开关关断;以及
在所述通信总线向所述显示控制电路写入数据时,通过所述第二控制信号线控制所述第二开关打开,向所述显示控制电路输出数据信号,在所述通信总线向所述显示控制电路写入数据完毕时,通过所述第二控制信号线控制所述第二开关关断。
第四方面,本公开还提供一种显示面板的控制电路,包括:第一开关、第二开关、通信总线、显示控制电路以及显示驱动电路;其中,
所述通信总线包括时钟信号线和数据信号线;
所述显示控制电路包括第一信号输入端、第二信号输入端以及信号输出端,所述第一信号输入端与所述时钟信号线电连接,所述第二信号输入端与所述数据信号线电连接,所述信号输出端与所述显示驱动电路电连接;
所述第一开关设置在所述第一信号输入端与所述时钟信号线之间,所述第一开关的第一控制端与第一控制信号线电连接,所述第二开关设置在所述第二信号输入端与所述数据信号线之间,所述第二开关的第一控制端与第二控制信号线电连接;以及
第一开关和第二开关均包括绝缘栅型场效应管,第一开关的第一控制端和第二开关的第一控制端是绝缘栅型场效应管的栅极,第一开关的第一输入端和第一开关的第一输出端分别是绝缘栅型场效应管的源极和漏极,第二开关的第 一输入端和第二开关的第一输出端分别是绝缘栅型场效应管的源极和漏极。
本公开提供了一种显示面板的控制电路、显示装置及其控制方法,其中,显示面板的控制电路包括第一开关和第二开关中的至少一个、通信总线、显示控制电路以及显示驱动电路,通信总线包括时钟信号线和数据信号线,显示控制电路包括第一信号输入端、第二信号输入端以及信号输出端,第一信号输入端与时钟信号线电连接,第二信号输入端与数据信号线电连接,信号输出端与显示驱动电路电连接,第一开关设置在在第一信号输入端与时钟信号线之间,第一开关的第一控制端与第一控制信号线电连接,第二开关设置在第二信号输入端与所述数据信号线之间,第二开关的第一控制端与第二控制信号线电连接。通过第一开关可以控制通信总线中的时钟信号线与显示控制电路之间的连通与关断,通过第二开关可以控制通信总线中的数据信号线与显示控制电路之间的连通与关断,即利用第一开关和第二开关,在通信总线向显示面板数据写入完毕后,可以隔断通信总线与显示控制电路之间的通信,避免了通信总线向显示控制电路写入数据完毕后,与通信总线连接的电阻电容影响显示控制模块对显示驱动电路的控制,导致显示面板异常甚至无法工作的现象。
附图说明
为了更清楚地说明以下实施例中的技术方案,下面将对实施例描述中所使用的附图做一介绍。
图1为一实施例提供的一种显示面板的控制电路的结构示意图一;
图2为一实施例提供的一种显示面板的控制电路的结构示意图二;
图3为一实施例提供的一种显示面板的控制电路的结构示意图三;
图4为一实施例提供的一种显示装置的结构示意图;以及
图5为一实施例提供的一种显示装置的控制方法的流程示意图。
具体实施方式
为使本的技术方案更加清楚,以下将参照实施例中的附图,通过具体实施方式清楚、完整地描述本公开的技术方案,所描述的实施例是一部分实施例,而不是全部的实施例。
图1为本实施例提供的一种显示面板的控制电路的结构示意图,如图1所示,显示面板的控制电路包括通信总线10、显示控制模块(也称显示控制电路)20、显示驱动电路30、第一开关41和第二开关42。其中,通信总线10包括时钟信号线101和数据信号线102,显示控制模块20包括第一信号输入端A1、第二信号输入端A2以及信号输出端A3,第一信号输入端A1与时钟信号线101电连接,第二信号输入端A2与数据信号线102电连接,信号输出端A3与显示驱动电路30电连接。
在显示面板中,第一信号输入端A1与时钟信号线101之间设置有第一开关41,第一开关41的第一控制端B1与第一控制信号线51电连接,第二信号输入端A2与数据信号线102之间设置有第二开关42,第二开关42的第二控制端C1与第二控制信号线52电连接。
如图1所示,显示面板的控制电路可以包括第一开关41,并将第一开关41串联于第一信号输入端A1与时钟信号线101之间,第一开关41的第一控制端B1与第一控制信号线51电连接;或者,如图2所示,显示面板的控制电路可以包括第二开关42,并将第二开关42串联于第二信号输入端A2与数据信号线102之间,第二开关42的第一控制端C1与第二控制信号线52电连接;或者如图3所示,显示面板的控制电路可以同时包括第一开关41和第二开关42,并将第一开关41串联于第一信号输入端A1与时钟信号线101之间,第一开关41的第一控制端B1与第一控制信号线51电连接,将第二开关42串联于第二信号输入端A2与数据信号线102之间,第二开关42的第二控制端C1与第二控制信号线52电连接。
如图1所示,通过在第一信号输入端A1与时钟信号线101之间设置第一开关41,在第二信号输入端A2与数据信号线102之间设置第二开关42,通信总线10可以向显示控制模块20写入数据的阶段,可以通过第一开关41和第二开关42控制通信总线10与显示控制模块20之间连通,实现通信总线10向显示控制模块20写入数据。通信总线10向显示控制模块20写入数据完毕的阶段,可以通过第一开关41和第二开关42控制通信总线10与显示控制模块20之间不连通,避免与通信总线10连接的电阻电容影响显示控制模块20对显示驱动电路30的控制,导致显示面板异常甚至无法工作的现象。
可选的,通信总线10包括两线式串行总线,时钟信号线101包括串行时钟 信号线,以及数据信号线102包括串行数据信号线。两线式串行总线可以通过串行时钟信号线和串行数据信号线与显示控制模块20电连接,并通过串行时钟信号线和串行数据信号线向显示控制模块20写入数据,实现对显示控制模块20中既定参数的调整。两线式串行总线进行数据传输时,可以通过串行时钟信号线和串行数据信号线实现数据传输,电路结构简单且占用空间小,能够减少显示控制模块20与通信总线10连接的管脚的数量。
可选的,参见图1,第一开关41和第二开关42位于显示面板的非显示区BB。示例性的,显示面板的非显示区BB可以包括用于走线的扇出区域,扇出区域中可以包括多个开关,参见图2,可以利用扇出区域BB1中的开关作为第一开关41和第二开关42。在不增加显示面板中元器件个数的情况下,通信总线10可以向显示控制模块20写入数据,以及写入数据完毕的阶段,通过显示面板的扇出区域的第一开关41和第二开关42控制通信总线10与显示控制模块20之间的连通状态,既实现了通信总线10能够向显示控制模块20写入数据,又避免了通信总线10向显示控制模块20写入数据完毕后,与通信总线10连接的电阻电容影响显示控制模块20对显示驱动电路30的控制,导致显示面板异常甚至无法工作的现象。
示例性的,如图1所示,显示面板的控制电路包括第一开关41和第二开关42,其中,第一开关41可以包括第一控制端B1,第一输入端B2和第一输出端B3,第一输入端B2与时钟信号线101电连接,第一输出端B3与第一信号输入端A1电连接,第一开关41可以根据第一控制端B1的控制信号控制第一输入端B2与第一输出端B3的连通状态。第二开关42可以包括第一控制端C1,第二输入端C2和第二输出端C3,第二输入端C2与数据信号线102电连接,第二输出端C3与第二信号输入端A2电连接,第二开关42可以根据第二控制端C1的控制信号控制第二输入端C2与第二输出端C3的连通状态。
示例性的,第一开关41和第二开关42均可以包括绝缘栅型场效应管,则第一控制端B1和第二控制端C1可以是绝缘栅型场效应管的栅极,第一输入端B2和第一输出端B3可以分别是绝缘栅型场效应管的源极和漏极,第二输入端C2和第二输出端C3可以分别是绝缘栅型场效应管的源极和漏极。第一开关41可以根据第一控制端B1的控制信号,例如可以是电平信号,控制第一输入端B2与第一输出端B3的连通状态,即控制时钟信号线101与显示控制模块20的 第一信号输入端A1的连通状态。第二开关42可以根据第二控制端C1的控制信号,例如可以是电平信号,控制第二输入端C2与第二输出端C3的连通状态,即控制数据信号线102与显示控制模块20的第二信号输入端A2的连通状态。
可选的,如图1所示,第一信号输入端A1与时钟信号线101之间设置有第一开关41,第一开关41的第一控制端B1与第一控制信号线51电连接,且第二信号输入端A2与数据信号线102之间设置有第二开关42,第二开关42的第二控制端C1与第二控制信号线52电连接,可以设置第一控制信号线51和第二控制信号线52电连接,即第一控制信号线51和第二控制信号线52可以使第一开关41和第二开关42同时连通或关断。可以通过同时控制第一开关41和第二开关42打开,控制时钟信号线101和数据信号线102同时通过第一开关41和第二开关42向显示控制模块20写入数据;或者在通信总线10向显示控制模块20写入数据完毕时,同时控制第一开关41和第二开关42关断。示例性的,通信总线10还可以包括写保护线103,可以设置写保护线103与第一控制信号线51和第二控制信号线52电连接,在没有额外增加线路的情况下,利用通信总线10中的写保护线103实现对第一开关41和第二开关42的控制。
图2为本实施例提供的一种显示装置的结构示意图,显示装置包括上述实施例的显示面板的控制电路(未示出),如图2所示,显示装置还包括显示面板60和显示驱动电路30,显示驱动电路30包括多个源极驱动模块(也称源极驱动电路)301和多个门侧驱动模块(也称门侧驱动电路)302,每个源极驱动模块301包括多个输入端和多个输出端,输入端与显示控制模块20电连接,显示面板60包括显示区AA和非显示区,部分输出端通过显示面板60的非显示区中的走线,例如可以是扇出区域BB1的走线,与对应的门侧驱动模块302电连接。
示例性的,源极驱动模块301可以通过与显示控制模块20电连接的输入端获取数据信号,并通过部分输出端与显示面板60中的薄膜晶体管的源极电连接,并将数据信号传输给与薄膜晶体管对应的像素单元。源极驱动电路还可以通过部分输入端获取显示控制模块20提供的扫描信号,通过除了与显示面板60中的薄膜晶体管的源极电连接的部分输出端,剩余的部分输出端与门侧驱动模块302电连接,向门侧驱动模块302提供扫描信号。门侧驱动模块302可以与显示面板60中的薄膜晶体管的栅极电连接,薄膜晶体管的栅极根据扫描信号控制像 素单元是否被点亮。示例性的,源极驱动模块301的部分输出端可以通过显示面板60非显示区的走线与对应的门侧驱动模块302电连接,例如可以通过上述实施例中提到的扇出区域BB1的走线与对应的门侧驱动模块302电连接。
可选的,显示驱动电路30还可以包括多个柔性线路板303,柔性线路板303串联于显示控制模块20与源极驱动模块301之间,图2示例性地设置显示驱动电路30包括两个柔性线路板303。通过柔性线路板303实现显示控制模块20与源极驱动模块301的电连接,显示控制模块20可以通过柔性线路板303向源极驱动模块301传输电信号,同时,柔性线路板303可以减少显示面板60非显示区的面积,可以实现显示面板60的窄边框。
可选的,显示驱动电路30还包括至少一个信号传输模块(也称信号传输电路)304,信号传输模块304串联于显示控制模块20与源极驱动模块301之间。图2示例性地设置显示驱动电路30包括两个信号传输模块304。示例性的,信号传输模块304可以包括印刷电路板,当显示控制模块20通过柔性线路板303与源极驱动模块301电连接时,由于柔性线路板303与源极驱动模块301中管脚的数量存在差异,使用信号传输模块304,例如可以是印刷电路板,能够消除柔性线路板303与源极驱动模块301之间管脚的差异,实现柔性线路板303与源极驱动模块301之间的电连接。
图3为本实施例提供的一种显示装置控制方法的流程示意图,控制方法可以应用在对显示装置进行控制的场景,可以由上述实施例提供的显示面板的控制电路来执行。
在步骤110中,在通信总线向显示控制模块写入数据时,通过第一控制信号线控制第一开关打开,向显示控制模块输出时钟信号。
当通信总线需要向显示控制模块写入数据以调整显示控制模块的既定参数时,可以通过第一控制信号线,控制第一开关的第一控制端,使第一开关打开,通信总线中的时钟信号线向显示控制模块的第一输入端输出时钟信号。
在步骤120中,在通信总线向显示控制模块写入数据完毕时,通过第一控制信号线控制第一开关关断。
当通信总线向显示控制模块写入数据完毕时,可以通过第一控制信号线,控制第一开关的第一控制端,使第一开关关断,可以避免与通信总线中的时钟信号线电连接的电阻电容线影响显示控制模块对显示驱动电路的控制,导致显 示面板异常甚至无法工作。
在步骤130中,在通信总线向显示控制模块写入数据时,通过第二控制信号线控制第二开关打开,向显示控制模块输出数据信号。
当通信总线需要向显示控制模块写入数据以调整显示控制模块的既定参数时,可以通过第二控制信号线,控制第二开关的第二控制端使第二开关打开,通信总线中的数据信号线向显示控制模块的第二输入端输出数据信号。
在步骤140中,在通信总线向显示控制模块写入数据完毕时,通过第二控制信号线控制第二开关关断。
当通信总线向显示控制模块写入数据完毕时,可以通过第二控制信号线,控制第二开关的第二控制端,使第二开关关断,可以避免与通信总线中的数据信号线电连接的电阻电容线影响显示控制模块对显示驱动电路的控制,导致显示面板异常甚至无法工作。
显示面板的控制电路可以包括第一开关;或者包括第二开关;也可以同时包括第一开关和第二开关。上述步骤110至步骤140只是示例性地给出了显示面板的控制电路同时包括第一开关和第二开关时,针对显示装置的控制方法。当显示面板的控制电路只包括第一开关时,显示装置的控制方法可以包括步骤110和步骤120。当显示面板的控制电路只包括第二开关时,显示装置的控制方法可以包括步骤130和步骤140。
本实施例通过设置通信总线包括时钟信号线和数据信号线,显示控制模块包括第一信号输入端第二信号输入端,以及信号输出端,第一信号输入端与时钟信号线电连接,第二信号输入端与数据信号线电连接,信号输出端与显示驱动电路电连接。在第一信号输入端与时钟信号线之间设置有第一开关,第一开关的控制端与第一控制信号线电连接;第二信号输入端与数据信号线之间设置有第二开关,第二开关的控制端与第二控制信号线电连接;或者,在第一信号输入端与时钟信号线之间设置有第一开关,第一开关的控制端与第一控制信号线电连接,第二信号输入端与数据信号线之间设置有第二开关,第二开关的控制端与第二控制信号线电连接。通过对第一开关可以控制通信总线中的时钟信号线与显示控制模块之间的连通与关断,通过第二开关可以控制通信总线中的数据信号线与显示控制模块之间的连通与关断,即利用第一开关和第二开关,在通信总线向显示面板数据写入完毕后,隔断了通信总线与显示控制模块之间 的通信,避免了系统主板上的部分电阻电容通过通信总线影响驱动芯片对显示面板的控制,导致显示面板异常甚至无法工作。
工业实用性
本公开提供的显示面板的控制电路、显示装置及其控制方法,避免了与通信总线连接的电阻电容影响显示控制模块对显示驱动电路的控制,导致显示面板异常或无法工作的现象。

Claims (20)

  1. 一种显示面板的控制电路,包括:第一开关和第二开关中的至少一个、通信总线、显示控制电路以及显示驱动电路;其中,
    所述通信总线包括时钟信号线和数据信号线;
    所述显示控制电路包括第一信号输入端、第二信号输入端以及信号输出端,所述第一信号输入端与所述时钟信号线电连接,所述第二信号输入端与所述数据信号线电连接,所述信号输出端与所述显示驱动电路电连接;以及
    所述第一开关设置在所述第一信号输入端与所述时钟信号线之间,所述第一开关的第一控制端与第一控制信号线电连接,所述第二开关设置在所述第二信号输入端与所述数据信号线之间,所述第二开关的第一控制端与第二控制信号线电连接。
  2. 根据权利要求1所述的控制电路,其中,所述通信总线包括两线式串行总线,所述时钟信号线包括串行时钟信号线,以及所述数据信号线包括串行数据信号线。
  3. 根据权利要求1所述的控制电路,其中,所述第一开关和所述第二开关位于显示面板的非显示区。
  4. 根据权利要求1所述的控制电路,其中,所述第一开关包括第一控制端、第一输入端和第一输出端,所述第一输入端与所述时钟信号线电连接,所述第一输出端与所述第一信号输入端电连接,所述第一开关设置为根据所述第一控制端的控制信号控制所述第一输入端与所述第一输出端的连通状态;
    所述第二开关包括第二控制端、第二输入端和第二输出端,所述第二输入端与所述数据信号线电连接,所述第二输出端与所述第二信号输入端电连接,所述第二开关设置为根据所述第二控制端的控制信号控制所述第二输入端与所述第二输出端的连通状态。
  5. 根据权利要求1所述的控制电路,其中,所述第一开关设置在所述第一信号输入端与所述时钟信号线之间,所述第一开关的第一控制端与第一控制信号线电连接;以及所述第二开关设置在所述第二信号输入端与所述数据信号线之间,所述第二开关的第一控制端与第二控制信号线电连接;以及
    所述第一控制信号线和所述第二控制信号线电连接。
  6. 根据权利要求5所述的控制电路,其中,所述通信总线还包括写保护线,以及所述写保护线分别与所述第一控制信号线和所述第二控制信号线电连接。
  7. 一种显示装置,包括显示面板的控制电路、显示面板及显示驱动电路,其中,
    所述显示面板的控制电路,包括:第一开关和第二开关中的至少一个、通信总线、显示控制电路以及显示驱动电路;其中,所述通信总线包括时钟信号线和数据信号线;所述显示控制电路包括第一信号输入端、第二信号输入端以及信号输出端,所述第一信号输入端与所述时钟信号线电连接,所述第二信号输入端与所述数据信号线电连接,所述信号输出端与所述显示驱动电路电连接;以及所述第一开关设置在所述第一信号输入端与所述时钟信号线之间,所述第一开关的第一控制端与第一控制信号线电连接,所述第二开关设置在所述第二信号输入端与所述数据信号线之间,所述第二开关的第一控制端与第二控制信号线电连接;
    所述显示驱动电路包括多个源极驱动电路和多个门侧驱动电路;
    每个源极驱动电路包括多个输入端和多个输出端,所述每个源极驱动电路的输入端与所述显示控制电路电连接;以及
    部分所述多个源极驱动电路的输出端通过所述显示面板的非显示区的走线与对应的门侧驱动电路电连接。
  8. 根据权利要求7所述的显示装置,其中,所述显示驱动电路还包括多个柔性线路板,以及所述多个柔性线路板串联于所述显示控制电路与源极驱动电路之间。
  9. 根据权利要求7所述的显示装置,其中,所述显示驱动电路还包括至少一个信号传输电路,以及信号传输电路串联于所述显示控制电路与源极驱动电路之间。
  10. 根据权利要求7所述的显示装置,其中,所述通信总线包括两线式串行总线,所述时钟信号线包括串行时钟信号线,以及所述数据信号线包括串行数据信号线。
  11. 根据权利要求7所述的显示装置,其中,所述第一开关和所述第二开关位于显示面板的非显示区。
  12. 根据权利要求7所述的显示装置,其中,所述第一开关包括第一控制端、第一输入端和第一输出端,所述第一输入端与所述时钟信号线电连接,所述第一输出端与所述第一信号输入端电连接,所述第一开关设置为根据所述第一控制端的控制信号控制所述第一输入端与所述第一输出端的连通状态;
    所述第二开关包括第二控制端、第二输入端和第二输出端,所述第二输入端与所述数据信号线电连接,所述第二输出端与所述第二信号输入端电连接,所述第二开关设置为根据所述第二控制端的控制信号控制所述第二输入端与所述第二输出端的连通状态。
  13. 根据权利要求7所述的显示装置,其中,所述第一开关设置在所述第一信号输入端与所述时钟信号线之间,所述第一开关的第一控制端与第一控制信号线电连接;以及所述第二开关设置在所述第二信号输入端与所述数据信号线之间,所述第二开关的第一控制端与第二控制信号线电连接;以及
    所述第一控制信号线和所述第二控制信号线电连接。
  14. 根据权利要求7所述的显示装置,其中,所述通信总线还包括写保护线,以及所述写保护线分别与所述第一控制信号线和所述第二控制信号线电连接。
  15. 一种显示装置的控制方法,其中,所述显示装置包括:显示面板的控制电路、显示面板及显示驱动电路,其中,
    所述显示面板的控制电路,包括:第一开关和第二开关中的至少一个、通信总线、显示控制电路以及显示驱动电路;其中,所述通信总线包括时钟信号线和数据信号线;所述显示控制电路包括第一信号输入端、第二信号输入端以及信号输出端,所述第一信号输入端与所述时钟信号线电连接,所述第二信号输入端与所述数据信号线电连接,所述信号输出端与所述显示驱动电路电连接;以及所述第一开关设置在所述第一信号输入端与所述时钟信号线之间,所述第一开关的第一控制端与第一控制信号线电连接,所述第二开关设置在所述第二信号输入端与所述数据信号线之间,所述第二开关的第一控制端与第二控制信号线电连接;
    所述显示驱动电路包括多个源极驱动电路和多个门侧驱动电路;其中,每个源极驱动电路包括多个输入端和多个输出端,所述每个源极驱动电路的输入端与所述显示控制电路电连接;以及部分所述多个源极驱动电路的输出端通过所述显示面板的非显示区的走线与对应的门侧驱动电路电连接;
    所述控制方法包括以下至少一种操作:
    在所述通信总线向所述显示控制电路写入数据时,通过所述第一控制信号线控制所述第一开关打开,向所述显示控制电路输出时钟信号,在所述通信总线向所述显示控制电路写入数据完毕时,通过所述第一控制信号线控制所述第 一开关关断;以及
    在所述通信总线向所述显示控制电路写入数据时,通过所述第二控制信号线控制所述第二开关打开,向所述显示控制电路输出数据信号,在所述通信总线向所述显示控制电路写入数据完毕时,通过所述第二控制信号线控制所述第二开关关断。
  16. 根据权利要求15所述的方法,其中,所述显示驱动电路还包括多个柔性线路板,以及所述多个柔性线路板串联于所述显示控制电路与源极驱动电路之间。
  17. 根据权利要求15所述的方法,其中,所述显示驱动电路还包括至少一个信号传输电路,以及信号传输电路串联于所述显示控制电路与源极驱动电路之间。
  18. 根据权利要求15所述的方法,其中,所述第一开关包括第一控制端、第一输入端和第一输出端,所述第一输入端与所述时钟信号线电连接,所述第一输出端与所述第一信号输入端电连接,所述第一开关设置为根据所述第一控制端的控制信号控制所述第一输入端与所述第一输出端的连通状态;
    所述第二开关包括第二控制端、第二输入端和第二输出端,所述第二输入端与所述数据信号线电连接,所述第二输出端与所述第二信号输入端电连接,所述第二开关设置为根据所述第二控制端的控制信号控制所述第二输入端与所述第二输出端的连通状态。
  19. 根据权利要求15所述的方法,其中,所述第一开关设置在所述第一信号输入端与所述时钟信号线之间,所述第一开关的第一控制端与第一控制信号线电连接;以及所述第二开关设置在所述第二信号输入端与所述数据信号线之间,所述第二开关的第一控制端与第二控制信号线电连接;以及
    所述第一控制信号线和所述第二控制信号线电连接。
  20. 一种显示面板的控制电路,包括:第一开关、第二开关、通信总线、显示控制电路以及显示驱动电路;其中,
    所述通信总线包括时钟信号线和数据信号线;
    所述显示控制电路包括第一信号输入端、第二信号输入端以及信号输出端,所述第一信号输入端与所述时钟信号线电连接,所述第二信号输入端与所述数据信号线电连接,所述信号输出端与所述显示驱动电路电连接;
    所述第一开关设置在所述第一信号输入端与所述时钟信号线之间,所述第一开关的第一控制端与第一控制信号线电连接,所述第二开关设置在所述第二信号输入端与所述数据信号线之间,所述第二开关的第一控制端与第二控制信号线电连接;以及
    第一开关和第二开关均包括绝缘栅型场效应管,第一开关的第一控制端和第二开关的第一控制端是绝缘栅型场效应管的栅极,第一开关的第一输入端和第一开关的第一输出端分别是绝缘栅型场效应管的源极和漏极,第二开关的第一输入端和第二开关的第一输出端分别是绝缘栅型场效应管的源极和漏极。
PCT/CN2017/083746 2017-04-19 2017-05-10 显示面板的控制电路、显示装置及其控制方法 Ceased WO2018192022A1 (zh)

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