WO2019184755A1 - 切换控制装置、其控制方法及显示设备 - Google Patents

切换控制装置、其控制方法及显示设备 Download PDF

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Publication number
WO2019184755A1
WO2019184755A1 PCT/CN2019/078566 CN2019078566W WO2019184755A1 WO 2019184755 A1 WO2019184755 A1 WO 2019184755A1 CN 2019078566 W CN2019078566 W CN 2019078566W WO 2019184755 A1 WO2019184755 A1 WO 2019184755A1
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Prior art keywords
signal
display
control
display screen
switch
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PCT/CN2019/078566
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English (en)
French (fr)
Inventor
任燕飞
孙继刚
杨万华
单伟星
宗少雷
Original Assignee
京东方科技集团股份有限公司
鄂尔多斯市源盛光电有限责任公司
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Application filed by 京东方科技集团股份有限公司, 鄂尔多斯市源盛光电有限责任公司 filed Critical 京东方科技集团股份有限公司
Priority to US16/641,298 priority Critical patent/US11157227B2/en
Publication of WO2019184755A1 publication Critical patent/WO2019184755A1/zh

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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
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/14—Display of multiple viewports
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
    • G06F3/1431—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display using a single graphics controller
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
    • G06F3/1446—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display display composed of modules, e.g. video walls
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/04—Display device controller operating with a plurality of display units
    • 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
    • G09G3/22—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 using controlled light sources
    • G09G3/30—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 using controlled light sources using electroluminescent panels
    • G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix

Definitions

  • the present disclosure relates to the field of circuit control technologies, and in particular, to a switching control device, a control method thereof, and a display device.
  • the display device having the double-sided display function has a relatively low resolution or a relatively high power consumption, that is, a multi-screen display that realizes low power consumption without lowering the display resolution in the prior art.
  • the switching control device includes: a main control circuit, and a switch control circuit corresponding to each display screen;
  • the main control circuit is configured to output a display control voltage and a time-sharing output display switching instruction corresponding to each of the display screens; wherein, for each of the display screens, the display switching instruction comprises: being configured a switch control signal for controlling the switch control circuit, a data signal configured to control a display screen of the display screen, a lighting signal configured to control illumination of the display screen, and configured to control the display
  • the off signal of the screen is off;
  • the main control circuit is configured to output the lighting signal to a corresponding display screen when the switch control signal is switched from an invalid pulse signal to an effective pulse signal, and the effective signal is generated by the switch control signal When the signal is switched to the invalid pulse signal, the extinguishing signal is output to the corresponding display screen;
  • the switch control circuit is electrically connected to the main control circuit, configured to receive the display control voltage and a switch control signal corresponding to the display screen; and receive an effective pulse signal of the switch control signal Under control, the display control voltage is supplied to the corresponding display screen to drive the display screen to display according to the received display control voltage and the data signal.
  • the display switching instruction further includes: a touch-on signal configured to trigger a touch function of the display screen;
  • the main control circuit is configured to simultaneously output the lighting signal and the touch-on signal to the display screen.
  • the display control voltage includes: a plurality of sub-voltages of different functions
  • Each of the switch control circuits includes: a switching transistor that is in one-to-one correspondence with a sub-voltage of the display control voltage;
  • a gate of the switching transistor is configured to receive a corresponding switch control signal, a first pole of the switching transistor is configured to receive a corresponding sub-voltage, and a second pole of the switching transistor is configured to a corresponding display The received sub-voltage is output.
  • the main control circuit includes: a processor.
  • the switching control apparatus further includes: a channel analog switch, and a processor interface corresponding to each of the display screens;
  • the main control circuit is connected to the channel analog switch, and the channel analog switch is respectively connected to each of the display screens through the processor interface;
  • the main control circuit is further configured to output a transmission control signal corresponding to each of the display screens to the channel analog switch;
  • the channel analog switch is configured to select a processor interface corresponding to the transmission control signal under the control of the received transmission control signal, and output the received data signal to the corresponding display screen through the selected processor interface.
  • the display screen is two, and the channel analog switch is a single channel analog switch.
  • the embodiment of the present disclosure further provides a control method of the foregoing switching control apparatus, which includes:
  • the main control circuit outputs a display control voltage and a time-sharing output display switching instruction corresponding to each display screen; wherein, for each of the display screens, the display switching instruction comprises: a switch control configured to control the switch control circuit a signal, a data signal configured to control a display screen of the display screen, a lighting signal configured to control illumination of the display screen, and an extinguishing signal configured to control the display screen to be turned off;
  • the main control circuit outputs the lighting signal to the corresponding display screen when the switch control signal is switched from the invalid pulse signal to the effective pulse signal, and the switch control signal is switched from the valid pulse signal to the invalid signal.
  • the pulse signal is output, outputting the extinguishing signal to the corresponding display screen;
  • the switch control circuit receives the display control voltage and a switch control signal corresponding to the display screen; and provides the display control voltage to a corresponding one under the control of the received valid pulse signal of the switch control signal
  • the display screen is configured to drive the display screen to display according to the received display control voltage and the data signal.
  • the display switching instruction further includes: a touch-on signal configured to trigger a touch function of the display screen;
  • the main control circuit outputs the lighting signal to the corresponding display screen, including:
  • the main control circuit simultaneously outputs the lighting signal and the touch-on signal to the display screen.
  • the switching control apparatus further includes: a channel analog switch, and a processor interface corresponding to each of the display screens;
  • the control method further includes:
  • the main control circuit outputs a transmission control signal corresponding to each of the display screens to the channel analog switch;
  • the channel analog switch selects a processor interface corresponding to the transmission control signal under the control of the received transmission control signal, and outputs the received data signal to the corresponding display screen through the selected processor interface.
  • an embodiment of the present disclosure further provides a display device, including at least two display screens and a switching control device as described above;
  • the display screen is configured to receive a data signal, a lighting signal, an extinction signal, and a display control voltage in the corresponding display switching instruction, and illuminate the screen under the control of the received lighting signal, according to the display
  • the control voltage is displayed with the data signal, and the screen is extinguished under the control of the received extinguish signal.
  • each of the display screens is pre-programmed with an initialization code corresponding to the lighting signal, and the initialization code is configured to control the calling of the lighting signal.
  • the display lights up the screen.
  • each of the display screens is further pre-programmed with a touch address code corresponding to the touch open signal, and the touch address code is configured to be in the touch open signal.
  • the touch function that triggers the display is called.
  • the display device includes a mobile phone.
  • FIG. 1 is a schematic structural diagram of a handover control apparatus according to an embodiment of the present disclosure
  • FIG. 2 is a schematic structural diagram of a handover control apparatus according to an embodiment of the present disclosure
  • FIG. 3 is a timing diagram of a switch control signal according to an embodiment of the present disclosure
  • FIG. 4 is a flowchart of a control method of the foregoing handover control apparatus according to an embodiment of the present disclosure.
  • a general display screen may include a liquid crystal display (LCD) and an active-matrix organic light emitting diode (AMOLED) display.
  • LCD liquid crystal display
  • AMOLED active-matrix organic light emitting diode
  • display devices that implement double-sided display generally use an AMOLED display.
  • the odd-numbered columns of pixels are formed on the front side of the AMOLED display screen
  • the even-numbered columns of pixels are formed on the opposite side of the AMOLED display screen
  • the pixels belonging to the same row and respectively located in the front and back sides are identical Grid connection.
  • the same driving signal is used to drive the pixels located on both sides of the AMOLED display screen and located in the same row, thereby realizing the effect of front display or reverse display.
  • the odd column pixels and the even column pixels of the AMOLED display are not in the same plane, the resolution thereof is low, thereby reducing the picture display quality.
  • a high-resolution display screen in the prior art can be used to control the time-division display of a plurality of displays by the processor.
  • a processor directly connects a plurality of display screens, so that when a display screen is displayed, the processor not only outputs a display control voltage to the display screen (eg, VSP, VSN, IOVCC, RESET, PWM, TE). , ATTN), so that the display is displayed, and the display control voltage is also output to the remaining displays simultaneously. This causes the remaining displays to form an additional load on the processor, resulting in higher power consumption of the processor.
  • embodiments of the present disclosure provide a switching control apparatus that can control multiple display screens to implement time-sharing display, and can reduce power consumption without affecting resolution.
  • the embodiment of the present disclosure provides a switching control device that can control time-division lighting of a plurality of display screens.
  • the switching control device can include: a main control circuit 10 and a one-to-one correspondence with each display screen 20_m
  • the main control circuit 10 is configured to output a display control voltage and a time-division output display switching instruction corresponding to each display screen 20_m; wherein, for each display screen 20_m, displaying the switching instruction comprises: configuring the control switch control circuit a switch control signal of 30_m, a data signal configured as a display screen of the display screen 20_m, a lighting signal configured to control the display screen 20_m to be lit, and an extinguishing signal configured to control the display screen 20_m to be turned off;
  • the main control circuit is configured to output a lighting signal to the corresponding display screen 20_m when the switching control signal is switched from the invalid pulse signal to the effective pulse signal, and when the switching control signal is switched from the effective pulse signal to the invalid pulse signal,
  • the corresponding display screen 20_m outputs an extinguishing signal
  • the switch control circuit 30_m is connected to the main control circuit and configured to receive the display control voltage and the switch control signal corresponding to the display screen 20_m, and provide the display control voltage under the control of the effective pulse signal of the received switch control signal
  • the corresponding display screen 20_m is used to drive the display screen 20_m to display according to the received display control voltage and data signal.
  • the switching control device outputs a display switching instruction corresponding to each display screen in a time-sharing manner through a main control circuit, and can output a data signal configured to be displayed to a display screen in a time period, and is configured. a lighting signal for controlling the illumination of the display screen, and an extinguishing signal configured to control the display screen to be turned off, and also outputting a switch control signal to the switch control circuit corresponding to the display screen during the same period of time to control the switch control circuit
  • the display control voltage uniformly outputted by the main control circuit is input only to the display screen to selectively input the display control voltage into the display screen, thereby supplying voltage for the display screen to illuminate the screen and display the screen.
  • the main control circuit in the embodiment of the present disclosure can implement the time-division control display screen without lowering the resolution, and can also prevent the display screen that does not display from accepting the display control voltage, thereby reducing the work of the main control circuit. Consumption.
  • the display screen may be an LCD, or may be an AMOLED.
  • the display control voltage may include: a plurality of sub-voltages of different functions, such as VSP, VSN, IOVCC, RESET, PWM, TE, ATTN.
  • the display control voltage may include: a plurality of sub-voltages of different functions, such as a high-level power supply voltage VDD input to the AMOLED, a low-level power supply voltage VSS, IOVCC, and the like.
  • the display screen is an LCD and the sub-voltages are: VSP, VSN, IOVCC, RESET, PWM, TE, and ATTN, but the reader should be aware that the sub-voltage is not limited thereto.
  • the LCD display screen may include a liquid crystal display panel and a backlight module.
  • the display screen can implement a touch function.
  • the display switching instruction may further include: a touch enable signal configured to trigger a touch function of the display screen; the main control circuit is configured to The lighting signal and the touch-on signal are simultaneously output to the display screen. In this way, the main control circuit can control the display to turn on the touch function while the control display is lit.
  • the switching control apparatus may further include: a channel analog switch 40, and a processor interface 50_m corresponding to each display screen 20_m; the processor interface may For the Mobile Industry Processor Interface (MIPI), the MIPI interface enables differential signal transmission and improves signal transmission rate;
  • MIPI Mobile Industry Processor Interface
  • the main control circuit 10 is connected to the channel analog switch 40, and the channel analog switch 40 is respectively connected to each display screen 20_m through the processor interface 50_m; the main control circuit 10 passes the data signal through the channel analog switch 40 and the MIPI interface 50_m corresponding to each display screen 20_m. Output to the corresponding display screen 20_m;
  • the main control circuit 10 is further configured to output a transmission control signal corresponding to each display screen 20_m to the channel analog switch 40;
  • the channel analog switch 40 is configured to select a MIPI interface corresponding to the transmission control signal under the control of the received transmission control signal, and output the received data signal to the corresponding display screen through the selected MIPI interface.
  • Each of the transmission control signals may include an enable signal and a transmission enable signal corresponding to the corresponding display screen.
  • the enable signal and the transmission enable signal may be data signals, and the specific settings thereof need to be determined according to the actual application environment, which is not limited herein.
  • the data signal output by the general main control circuit may include 5 pairs of differential signals. Therefore, in the specific implementation, the channel analog switch can be five, and the MIPI interface corresponding to each display is also five. Among them, one channel analog switch is connected to M MIPI interfaces, and M MIPI interfaces connected to the same channel analog switch are respectively connected to different display screens.
  • the display screen can be two, so that one channel analog switch can be connected to two MIPI interfaces, and the channel analog switch can be made into a single-channel analog switch 41.
  • FIG. 2 only shows an example in which one single-channel analog switch 41 corresponds to two MIPI interfaces.
  • the enable signals corresponding to the display screen 20_1 and the display screen 20_2 may each be a digital signal represented by a “1” level, and the transmission enable signal corresponding to the display screen 20_1 may be a digital signal represented by a “0” level.
  • the transmission ON signal corresponding to the display 20_2 may be a digital signal represented by a "1" level.
  • the main control circuit 10 may include: a processor.
  • the processor can be combined with software and hardware to implement the above functions.
  • the structure of the processor may be the same as that in the prior art, and details are not described herein.
  • the display control voltage may include a plurality of sub-voltages of different functions.
  • the display control voltage may include: 7 sub-voltages of different functions, namely, VSP, VSN, IOVCC, RESET, PWM, TE, ATTN.
  • each of the switch control circuits 30_m may include a switching transistor T30_mn (n is an integer greater than or equal to 1 and less than or equal to N) in one-to-one correspondence with the sub-voltages in the display control voltage.
  • N is the total number of sub-voltages included in the display control voltage; wherein the gate of the switching transistor T30_mn is connected to the processor 11 and configured to receive a corresponding switch control signal; the first pole of the switching transistor T30_mn and the processor 11 The connection is configured to receive a corresponding sub-voltage, and the second pole of the switching transistor T30_mn is coupled to the corresponding display screen 20_m and configured to output the received sub-voltage to the corresponding display screen 20_m.
  • the N-type transistor is turned on under the control of the high-level signal, and is turned off under the control of the low-level signal; the P-type transistor is turned on under the control of the low-level signal, and is turned off under the control of the high-level signal.
  • the switching transistor T30_mn may be an N-type transistor.
  • the effective pulse signal of the switch control signal is a high level signal, and the invalid level signal is a low level signal.
  • the switch control signal 1 can also be represented as Driver1, which represents the switch control signal corresponding to the display screen 20_1
  • the switch control signal 2 can also be represented as Driver2, representing the switch control signal corresponding to the display screen 20_2.
  • the high-level signal in Driver1 and Driver2 is time-division, that is, after the first preset time period after Driver1 changes from the high-level signal to the low-level signal, Driver2 changes from the low-level signal to the high-level signal. .
  • Driver1 changes from a low level signal to a high level signal.
  • the first preset duration and the second preset duration need to be determined according to the actual application environment, which is not limited herein.
  • the switching transistor can also be a P-type transistor.
  • the effective pulse signal of the switch control signal is a low level signal, and the invalid level signal is a high level signal.
  • an embodiment of the present disclosure further provides a control method of the foregoing switching control apparatus, as shown in FIG. 4, including:
  • the main control circuit outputs a display control voltage and a time-sharing output display switching instruction corresponding to each display screen; wherein, for each display screen, the display switching instruction includes: a switch control signal configured to control the switch control circuit, a data signal configured to control a display screen of the display screen, a lighting signal configured to control the illumination of the display screen, and an extinguishing signal configured to control the display screen to be turned off;
  • the switch control circuit receives the display control voltage and a switch control signal corresponding to the display screen. Under the control of the valid pulse signal of the received switch control signal, the display control voltage is provided to the corresponding display screen to drive the display screen according to The received display control voltage and data signal are displayed.
  • the main control circuit outputs a display switching instruction corresponding to each display screen in a time division manner, and can output a data signal, a lighting signal, and a extinction signal to a display screen in a time period. And outputting a switch control signal to the switch control circuit corresponding to the display screen during the same period of time to control the switch control circuit to input the display control voltage uniformly output by the main control circuit into the display screen to display the control voltage Selectively input into the display to provide voltage for the display to illuminate the screen and display the screen, so that the time-division control display can be displayed without reducing the resolution, and the display can be prevented from being displayed.
  • the display accepts the display control voltage, which reduces the power consumption of the main control circuit.
  • the general display screen may have a touch function
  • the display switching instruction further includes: a touch open signal configured to trigger a touch function of the display screen;
  • the main control circuit outputs a lighting signal to the corresponding display screen, including:
  • the main control circuit simultaneously outputs a lighting signal and a touch-on signal to the display screen.
  • the main control circuit can control the display to turn on the touch function while the control display is lit.
  • the switching control apparatus may further include: a channel analog switch, and a processor interface corresponding to each display screen;
  • Control methods also include:
  • the main control circuit outputs a transmission control signal corresponding to each display screen to the channel analog switch;
  • the channel analog switch selects a processor interface corresponding to the transmission control signal under the control of the received transmission control signal, and outputs the received data signal to the corresponding display screen through the selected processor interface.
  • the main control circuit can output the data signal to the corresponding display through the channel analog switch and the MIPI interface corresponding to each display.
  • the embodiment of the present disclosure further provides a display device, as shown in FIG. 1, comprising: a plurality of display screens 20_m and a switching control device 60 provided by an embodiment of the present disclosure;
  • Each display screen 20_m is configured to receive a data signal, a lighting signal, an extinguishing signal, and a display control voltage in the corresponding display switching command, and illuminate the screen under the control of the received lighting signal, according to the display control voltage and the data signal. Display is performed and the screen is turned off under the control of the received extinction signal.
  • each display screen is pre-programmed with an initialization code corresponding to the lighting signal, and the initialization code is configured to control the display screen to light the screen under the call of the lighting signal.
  • the initialization code may be the same as that in the prior art, and should be understood by those skilled in the art, and details are not described herein.
  • each display screen is pre-programmed with a touch address code corresponding to the touch open signal, and the touch address code is configured to trigger the display when the touch open signal is called.
  • Touch function Specifically, in order to avoid the touch function triggering error, the touch address code corresponding to one display is unique.
  • the touch-on signal may be pre-programmed in the corresponding display screen by using an I2C protocol address.
  • the display device may be a mobile phone.
  • the display device can also be: a tablet, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like, any product or component having a display function.
  • Other indispensable components of the display device are understood by those skilled in the art, and are not described herein, nor should they be construed as limiting the disclosure.
  • the mobile phone can be a flip phone.
  • the outer side of the flip phone is the display screen 20_1
  • the inner side is the display screen 20_2.
  • the display 20_1 can be controlled to light up and display, and the control display 20_2 is turned off.
  • the display screen 20_1 can be turned off, and the control screen 20_2 is turned on and displayed.
  • the switch control signal 2 controls the switching transistors T30_21 to T30_27 to be turned off.
  • the switch control signal 1 controls the switching transistors T30_11 to T30_17 to be turned on to supply the received sub-voltages VSP, VSN, IOVCC, RESET, PWM, TE, ATTN to the display screen 20_1.
  • the processor 10 outputs a lighting signal to the display screen 20_1, and invokes an initialization code pre-programmed in the display screen 20_1 by the lighting signal to control the display screen 20_1 to light according to the received sub-voltages. screen.
  • the processor 11 also inputs a "1" level enable signal and a "0" level transmission enable signal to the single channel analog switch 41 to control the single channel analog switch 41 to select the MIPI interface 50_1, which will be configured to be displayed.
  • the data signal is supplied to the display screen 20_1, so that the display screen 20_1 realizes the screen display function under the control of the received sub-voltages VSP, VSN, IOVCC, RESET, PWM, TE, ATTN and data signals.
  • the switch control signal Driver1 controls the switching transistors T30_11 to T30_17 to be turned off, and stops inputting the sub-voltage to the display screen 20_1.
  • the switch control signal 1 controls the switching transistors T30_11 to T30_17 to be turned off.
  • the switch control signal 2 controls the switching transistors T30_21 to T30_27 to be turned on to supply the received sub-voltages VSP, VSN, IOVCC, RESET, PWM, TE, ATTN to the display screen 20_2.
  • the processor 10 outputs a lighting signal to the display screen 20_2, and the initialization code pre-programmed in the display screen 20_2 is called by the lighting signal to control the display screen 20_2 to light according to the received sub-voltages. screen.
  • the processor 11 also inputs a "1" level enable signal and a "1" level transmission enable signal to the single channel analog switch 41 to control the single channel analog switch 41 to select the MIPI interface 50_2, which will be configured to be displayed.
  • the data signal is supplied to the display screen 20_2, so that the display screen 20_2 realizes the screen display function under the control of the received sub-voltages VSP, VSN, IOVCC, RESET, PWM, TE, ATTN and data signals.
  • the processor 10 outputs an extinguish signal to the display screen 20_2, and controls the display screen 20_2 to turn off the screen.
  • the switch control signal Driver2 controls the switching transistors T30_21 to T30_27 to be turned off, and stops inputting the sub-voltage to the display screen 20_2.
  • multiple T1 phases can be set to control the display 20_1 to be lit and displayed multiple times.
  • multiple T2 phases can be set to control the display 20_2 to be illuminated and displayed multiple times. This is not limited here.
  • the switching control device, the control method thereof and the display device provided by the embodiments of the present disclosure output a display switching instruction corresponding to each display screen in a time-sharing manner through the main control circuit, and can output to a display screen in a time period configured to be configured as The displayed data signal, a lighting signal configured to control the display being illuminated, and an extinguishing signal configured to control the display to be off. And outputting a switch control signal to the switch control circuit corresponding to the display screen during the same period of time to control the switch control circuit to input the display control voltage uniformly outputted by the main control circuit into the display screen to select the display control voltage.
  • the input is entered in the display to provide voltage for the display to illuminate the screen and display the picture.
  • the main control circuit in the embodiment of the present disclosure can realize time-division control of the display screen for display, and can also prevent the display screen that does not display from accepting the display control voltage, thereby reducing the power consumption of the main control circuit.

Abstract

一种切换控制装置（60）、控制方法及显示设备，切换控制装置（60）包括：主控制电路（10），以及与各显示屏（20_1、20_2）一一对应的开关控制电路（30_1、30_2）；主控制电路（10），被配置为输出显示控制电压以及分时输出与各显示屏（20_1、20_2）一一对应的显示切换指令（S101）；其中，针对每一显示屏（20_1、20_2），显示切换指令包括：开关控制信号、数据信号、点亮信号、以及熄灭信号；主控制电路（10），被配置为在开关控制信号由无效脉冲信号切换为有效脉冲信号时，向对应的显示屏（20_1、20_2）输出点亮信号，以及在开关控制信号由有效脉冲信号切换为无效脉冲信号时，向对应的显示屏（20_1、20_2）输出熄灭信号（S102）；开关控制电路（30_1、30_2），被配置为接收显示控制电压以及对应于显示屏（20_1、20_2）的开关控制信号；在接收到的开关控制信号的有效脉冲信号的控制下，将显示控制电压提供给对应的显示屏（20_1、20_2），以驱动显示屏（20_1、20_2）根据接收的显示控制电压与数据信号进行显示（S103）。

Description

切换控制装置、其控制方法及显示设备
本申请要求在2018年3月30日提交中国专利局、申请号为201810292204.5、发明名称为“一种切换控制装置及显示设备”的中国专利申请的优先权，其全部内容以引入的方式并入本申请中。
技术领域
本公开涉及电路控制技术领域，特别涉及一种切换控制装置、其控制方法及显示设备。
背景技术
随着信息技术的发展，人们对显示设备的要求越来越高，其中不仅要求显示设备具有较高的分辨率及较大的屏占比，而且还要求显示设备可以实现双面显示。然而，目前具有双面显示功能的显示设备的分辨率比较低或者功耗比较高，也就是现有技术中还无法实现不降低显示分辨率的情况下实现低功耗的多屏显示。
发明内容
本公开实施例提供的切换控制装置，其中，包括：主控制电路，以及与各显示屏一一对应的开关控制电路；
所述主控制电路，被配置为输出显示控制电压以及分时输出与各所述显示屏一一对应的显示切换指令；其中，针对每一所述显示屏，所述显示切换指令包括：被配置为控制所述开关控制电路的开关控制信号、被配置为控制所述显示屏的显示画面的数据信号、被配置为控制所述显示屏点亮的点亮信号、以及被配置为控制所述显示屏熄屏的熄灭信号；
所述主控制电路，被配置为在所述开关控制信号由无效脉冲信号切换为有效脉冲信号时，向对应的所述显示屏输出所述点亮信号，以及在所述开关 控制信号由有效脉冲信号切换为无效脉冲信号时，向对应的所述显示屏输出所述熄灭信号；
所述开关控制电路，与所述主控制电路电连接，被配置为接收所述显示控制电压以及对应于所述显示屏的开关控制信号；在接收到的所述开关控制信号的有效脉冲信号的控制下，将所述显示控制电压提供给对应的所述显示屏，以驱动所述显示屏根据接收的显示控制电压与数据信号进行显示。
可选地，在本公开实施例中，所述显示切换指令还包括：被配置为触发所述显示屏的触控功能的触控开启信号；
所述主控制电路，被配置为向所述显示屏同时输出所述点亮信号和所述触控开启信号。
可选地，在本公开实施例中，所述显示控制电压包括：不同功能的多个子电压；
各所述开关控制电路包括：与所述显示控制电压中的子电压一一对应的开关晶体管；
所述开关晶体管的栅极被配置为接收对应的开关控制信号，所述开关晶体管的第一极被配置为接收对应的子电压，所述开关晶体管的第二极被配置为向对应的显示屏输出接收的子电压。
可选地，在本公开实施例中，所述主控制电路包括：处理器。
可选地，在本公开实施例中，所述切换控制装置还包括：通道模拟开关，以及与各所述显示屏一一对应的处理器接口；
所述主控制电路与所述通道模拟开关连接，所述通道模拟开关通过所述处理器接口分别与各所述显示屏连接；
所述主控制电路，还被配置为向所述通道模拟开关输出与各所述显示屏一一对应的传输控制信号；
所述通道模拟开关，被配置为在接收的传输控制信号的控制下，选取与所述传输控制信号对应的处理器接口，将接收的数据信号通过选取的处理器接口输出给对应的显示屏。
可选地，在本公开实施例中，所述显示屏为2个，所述通道模拟开关为单通道模拟开关。
相应地，本公开实施例还提供了上述切换控制装置的控制方法，其中，包括：
主控制电路输出显示控制电压以及分时输出与各显示屏一一对应的显示切换指令；其中，针对每一所述显示屏，所述显示切换指令包括：被配置为控制开关控制电路的开关控制信号、被配置为控制所述显示屏的显示画面的数据信号、被配置为控制所述显示屏点亮的点亮信号、以及被配置为控制所述显示屏熄屏的熄灭信号；
所述主控制电路在所述开关控制信号由无效脉冲信号切换为有效脉冲信号时，向对应的所述显示屏输出所述点亮信号，以及在所述开关控制信号由有效脉冲信号切换为无效脉冲信号时，向对应的所述显示屏输出所述熄灭信号；
所述开关控制电路接收所述显示控制电压以及对应于所述显示屏的开关控制信号；在接收到的所述开关控制信号的有效脉冲信号的控制下，将所述显示控制电压提供给对应的所述显示屏，以驱动所述显示屏根据接收的显示控制电压与数据信号进行显示。
可选地，在本公开实施例中，所述显示切换指令还包括：被配置为触发所述显示屏的触控功能的触控开启信号；
所述主控制电路向对应的所述显示屏输出所述点亮信号，包括：
所述主控制电路向所述显示屏同时输出所述点亮信号和所述触控开启信号。
可选地，在本公开实施例中，所述切换控制装置还包括：通道模拟开关，以及与各所述显示屏一一对应的处理器接口；
所述控制方法，还包括：
所述主控制电路向所述通道模拟开关输出与各所述显示屏一一对应的传输控制信号；
所述通道模拟开关在接收的传输控制信号的控制下，选取与所述传输控制信号对应的处理器接口，将接收的数据信号通过选取的处理器接口输出给对应的显示屏。
相应地，本公开实施例还提供了显示设备，其中，包括至少两个显示屏以及如上述切换控制装置；
所述显示屏，被配置为接收对应的显示切换指令中的数据信号、点亮信号、熄灭信号以及显示控制电压，并在接收的所述点亮信号的控制下点亮屏幕，根据所述显示控制电压与所述数据信号进行显示，以及在接收的所述熄灭信号的控制下熄灭屏幕。
可选地，在本公开实施例中，各所述显示屏预先烧录有与所述点亮信号对应的初始化代码，所述初始化代码被配置为在所述点亮信号的调用下控制所述显示屏点亮屏幕。
可选地，在本公开实施例中，各所述显示屏还预先烧录有与触控开启信号对应的触控地址代码，所述触控地址代码被配置为在所述触控开启信号的调用下触发所述显示屏的触控功能。
可选地，在本公开实施例中，所述显示设备包括手机。
附图说明
图1为本公开实施例提供的切换控制装置的结构示意图；
图2为本公开实施例提供的切换控制装置的具体结构示意图；
图3为本公开实施例提供的开关控制信号的时序图；
图4为本公开实施例提供的上述切换控制装置的控制方法流程图。
具体实施方式
一般显示屏可以包括液晶显示屏(Liquid Crystal Display，LCD)与有源矩阵有机发光二极管(Active-matrix organic light emitting diode，AMOLED)显示屏。目前，实现双面显示的显示设备一般是采用AMOLED显示屏。其中， 在该AMOLED显示屏中，将奇数列像素制作在AMOLED显示屏的正面，将偶数列像素制作在AMOLED显示屏的反面，并且属于同一行的且分别位于正面和反面中的像素均与同一栅线连接。在该AMOLED显示屏显示画面时，采用同一驱动信号驱动位于AMOLED显示屏两面且位于同一行中的像素，从而实现正面显示或反面显示的效果。然而，由于该AMOLED显示屏的奇数列像素与偶数列像素不在同一面中，导致其分辨率较低，从而降低画面显示品质。
LCD显示屏在显示画面时，需要通过不同功能的电压，例如：用于输入LCD且驱动液晶翻转的电源电压VSP、VSN；用于输入集成电路(Integrated Circuit，IC)的供电电压IOVCC、用于输入LCD的重启电压RESET、用于输入LCD的背光源的PWM电压、以及用于输入LCD的电压TE与ATTN等。这些电压均与现有技术中的相类似，为本领域的普通技术人员应该理解具有的，在此不作赘述。
目前，为了提高显示分辨率，可以采用现有中的高分辨率的显示屏，以通过处理器控制多个显示屏分时显示。具体地，一般是一个处理器直接连接多个显示屏，这样在某一显示屏进行显示时，处理器不仅会对该显示屏输出显示控制电压(例如VSP、VSN、IOVCC、RESET、PWM、TE、ATTN)，以使该显示屏进行显示，还会对其余显示屏同时输出显示控制电压。这样导致其余显示屏形成了处理器的额外负载，从而导致处理器的功耗较高。
基于此，本公开实施例提供了一种切换控制装置，可以控制多个显示屏实现分时显示，并且可以在不影响分辨率的情况下降低功耗。
为了使本公开的目的，技术方案和优点更加清楚，下面结合附图，对本公开实施例提供的切换控制装置、其控制方法及显示设备的具体实施方式进行详细地说明。应当理解，下面所描述的优选实施例仅用于说明和解释本公开，并不用于限定本公开。并且在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。并且附图中各图形的大小和形状不反映切换控制装置、其控制方法及显示设备的真实比例，目的只是示意说明本公开内容。
本公开实施例提供了一种可以控制多个显示屏分时点亮的切换控制装 置，如图1所示，该切换控制装置可以包括：主控制电路10，以及与各显示屏20_m一一对应的开关控制电路30_m；其中，m为大于或等于1且小于或等于M的整数，M为显示屏的总数，并且M取大于或等于2的整数，并且图1仅以M＝2为例进行说明。
主控制电路10，被配置为输出显示控制电压以及分时输出与各显示屏20_m一一对应的显示切换指令；其中，针对每一显示屏20_m，显示切换指令包括：被配置为控制开关控制电路30_m的开关控制信号、被配置为显示屏20_m的显示画面的数据信号、被配置为控制显示屏20_m点亮的点亮信号、以及被配置为控制显示屏20_m熄屏的熄灭信号；
主控制电路，被配置为在开关控制信号由无效脉冲信号切换为有效脉冲信号时，向对应的显示屏20_m输出点亮信号，以及在开关控制信号由有效脉冲信号切换为无效脉冲信号时，向对应的显示屏20_m输出熄灭信号；
开关控制电路30_m，与主控制电路连接，被配置为接收显示控制电压以及对应于显示屏20_m的开关控制信号，在接收到的开关控制信号的有效脉冲信号的控制下，将显示控制电压提供给对应的显示屏20_m，以驱动显示屏20_m根据接收的显示控制电压与数据信号进行显示。
本公开实施例提供的切换控制装置，通过主控制电路将与各显示屏一一对应的显示切换指令分时输出，可以在一个时间段内向一个显示屏输出被配置为显示的数据信号、被配置为控制显示屏点亮的点亮信号、以及被配置为控制显示屏熄屏的熄灭信号，并且在同一时间段内还向该显示屏对应的开关控制电路输出开关控制信号，以控制开关控制电路将主控制电路统一输出的显示控制电压仅输入到该显示屏中，以将显示控制电压选择性的输入该显示屏中，从而为该显示屏点亮屏幕以及显示画面时提供电压。本公开实施例中的主控制电路可以在不降低分辨率的情况下实现分时控制显示屏进行显示，并且还可以避免不进行显示的显示屏接受显示控制电压，从而可以降低主控制电路的功耗。
在具体实施时，显示屏可以为LCD，或者也可以为AMOLED。在显示屏 为LCD时，显示控制电压可以包括：不同功能的多个子电压，这些子电压例如可以为：VSP、VSN、IOVCC、RESET、PWM、TE、ATTN。在显示屏为AMOLED时，显示控制电压可以包括：不同功能的多个子电压，这些子电压例如可以为：向AMOLED输入的高电平电源电压VDD、低电平电源电压VSS、IOVCC等。下面均以显示屏为LCD、以及子电压为：VSP、VSN、IOVCC、RESET、PWM、TE、ATTN为例进行说明，但读者应知，该子电压不局限于此。并且，在本公开实施例中，LCD显示屏可以包括液晶显示面板与背光模组。
一般显示屏可以实现触控功能，在具体实施时，针对每一显示屏，显示切换指令还可以包括：被配置为触发显示屏的触控功能的触控开启信号；主控制电路，被配置为向显示屏同时输出点亮信号和触控开启信号。这样可以通过主控制电路在控制显示屏点亮的同时，控制显示屏开启触控功能。
在具体实施时，在本公开实施例中，如图2所示，切换控制装置还可以包括：通道模拟开关40，以及与各显示屏20_m一一对应的处理器接口50_m；该处理器接口可以为移动产业处理器接口(Mobile Industry Processor Interface，MIPI)，MIPI接口可以实现差分信号传输，提高信号传输速率；
主控制电路10与通道模拟开关40连接，通道模拟开关40通过处理器接口50_m分别与各显示屏20_m连接；主控制电路10通过通道模拟开关40以及对应各显示屏20_m的MIPI接口50_m将数据信号输出给对应的显示屏20_m；
具体地，主控制电路10，还被配置为向通道模拟开关40输出与各显示屏20_m一一对应的传输控制信号；
通道模拟开关40，被配置为在接收的传输控制信号的控制下，选取与传输控制信号对应的MIPI接口，将接收的数据信号通过选取的MIPI接口输出给对应的显示屏。其中，各传输控制信号可以包括使能信号以及与对应的显示屏一一对应的传输开启信号。具体地，使能信号和传输开启信号可以为数据信号，其具体设置需要根据实际应用环境来设计确定，在此不作限定。
在实际应用中，一般主控制电路输出的数据信号可以包括5对差分信号。因此，在具体实施时，通道模拟开关可以为5个，与各显示屏一一对应的MIPI接口也为5个。其中，1个通道模拟开关对应连接M个MIPI接口，并且连接于同一通道模拟开关的M个MIPI接口分别连接不同的显示屏。
具体地，在具体实施时，显示屏可以为2个，这样1个通道模拟开关可以连接2个MIPI接口，则可以使通道模拟开关为单通道模拟开关41。例如图2所示，图2仅给出1个单通道模拟开关41对应2个MIPI接口的示例。并且，显示屏20_1与显示屏20_2对应的使能信号可以均为以“1”电平表示的数字信号，而显示屏20_1对应的传输开启信号可以为以“0”电平表示的数字信号，而显示屏20_2对应的传输开启信号可以为以“1”电平表示的数字信号。
在具体实施时，在本公开实施例中，如图2所示，主控制电路10可以包括：处理器。其中，该处理器可以采用软件与硬件相结合的方式以实现上述功能。并且，该处理器的结构可以与现有技术中的结构相同，在此不作赘述。
在具体实施时，显示控制电压可以包括不同功能的多个子电压，例如显示控制电压可以包括：不同功能的7个子电压，即VSP、VSN、IOVCC、RESET、PWM、TE、ATTN。在本公开实施例中，如图2所示，各开关控制电路30_m可以包括：与显示控制电压中的子电压一一对应的开关晶体管T30_mn(n为大于或等于1且小于或等于N的整数，N为显示控制电压中包括的子电压的总数)；其中，开关晶体管T30_mn的栅极与处理器11连接，被配置为接收对应的开关控制信号；开关晶体管T30_mn的第一极与处理器11连接，被配置为接收对应的子电压，开关晶体管T30_mn的第二极与对应的显示屏20_m连接，被配置为向对应的显示屏20_m输出接收的子电压。
一般，N型晶体管在高电平信号的控制下导通，在低电平信号的控制下截止；P型晶体管在低电平信号的控制下导通，在高电平信号的控制下截止。在具体实施时，如图2所示，开关晶体管T30_mn可以为N型晶体管。并且，开关控制信号的有效脉冲信号为高电平信号，无效电平信号为低电平信号。此时，开关控制信号出现上升沿时，处理器向对应的显示屏输出点亮信号； 开关控制信号出现下降沿时，处理器向对应的显示屏输出熄灭信号。
可选地，在本公开实施例中，以显示屏为2个为例。此时开关控制信号的具体实施可以如图3所示。在图3中，开关控制信号1还可以表示为Driver1，代表显示屏20_1对应的开关控制信号，开关控制信号2还可以表示为Driver2，代表显示屏20_2对应的开关控制信号。其中，Driver1与Driver2中的高电平信号分时出现，即在Driver1由高电平信号变为低电平信号后的第一预设时长之后，Driver2由低电平信号变为高电平信号。同理，在Driver2由高电平信号变为低电平信号后的第二预设时长之后，Driver1由低电平信号变为高电平信号。这样可以使显示屏20_1与显示屏20_2实现分时点亮与显示。并且，第一预设时长与第二预设时长需要根据实际应用环境来设计确定，在此不作限定。
当然，开关晶体管也可以为P型晶体管。并且，开关控制信号的有效脉冲信号为低电平信号，无效电平信号为高电平信号。此时，开关控制信号出现下降沿时，处理器向对应的显示屏输出点亮信号；开关控制信号出现上升沿时，处理器向对应的显示屏输出熄灭信号。
基于同一发明构思，本公开实施例还提供了一种上述切换控制装置的控制方法，如图4所示，包括：
S101、主控制电路输出显示控制电压以及分时输出与各显示屏一一对应的显示切换指令；其中，针对每一显示屏，显示切换指令包括：被配置为控制开关控制电路的开关控制信号、被配置为控制显示屏的显示画面的数据信号、被配置为控制显示屏点亮的点亮信号、以及被配置为控制显示屏熄屏的熄灭信号；
S102、主控制电路在开关控制信号由无效脉冲信号切换为有效脉冲信号时，向对应的显示屏输出点亮信号，以及在开关控制信号由有效脉冲信号切换为无效脉冲信号时，向对应的显示屏输出熄灭信号；
S103、开关控制电路接收显示控制电压以及对应于显示屏的开关控制信号；在接收到的开关控制信号的有效脉冲信号的控制下，将显示控制电压提 供给对应的显示屏，以驱动显示屏根据接收的显示控制电压与数据信号进行显示。
本公开实施例提供的上述控制方法中，通过主控制电路分时输出与各显示屏一一对应的显示切换指令，可以在一个时间段内向一个显示屏输出数据信号、点亮信号、以及熄灭信号，并且在同一时间段内还向该显示屏对应的开关控制电路输出开关控制信号，以控制开关控制电路将主控制电路统一输出的显示控制电压仅输入到该显示屏中，以将显示控制电压选择性的输入该显示屏中，从而为该显示屏点亮屏幕以及显示画面时提供电压，从而可以在不降低分辨率的情况下实现分时控制显示屏进行显示，并且还可以避免不进行显示的显示屏接受显示控制电压，从而可以降低主控制电路的功耗。
应该说明的是，图4中各步骤的标号S101～S103只是为了区分各步骤，并不对各步骤的先后顺序进行限定。
此外，一般显示屏可以具有触控功能，上述显示切换指令还包括：被配置为触发显示屏的触控功能的触控开启信号；
主控制电路向对应的显示屏输出点亮信号，包括：
主控制电路向显示屏同时输出点亮信号和触控开启信号。
这样可以通过主控制电路在控制显示屏点亮的同时，控制显示屏开启触控功能。
进一步地，本公开实施例提供的上述控制方法中，切换控制装置还可以包括：通道模拟开关，以及与各显示屏一一对应的处理器接口；
控制方法，还包括：
主控制电路向通道模拟开关输出与各显示屏一一对应的传输控制信号；
通道模拟开关在接收的传输控制信号的控制下，选取与传输控制信号对应的处理器接口，将接收的数据信号通过选取的处理器接口输出给对应的显示屏。
这样，主控制电路可以通过通道模拟开关以及对应各显示屏的MIPI接口，将数据信号输出给对应的显示屏。
基于同一发明构思，本公开实施例还提供了一种显示设备，如图1所示，包括：多个显示屏20_m以及本公开实施例提供的切换控制装置60；
各显示屏20_m被配置为接收对应的显示切换指令中的数据信号、点亮信号、熄灭信号以及显示控制电压，并在接收的点亮信号的控制下点亮屏幕，根据显示控制电压与数据信号进行显示，以及在接收的熄灭信号的控制下熄灭屏幕。
一般在显示屏点亮时需要调用一些预先存储于显示屏中的驱动IC中的程序、地址代码或电压等。在具体实施时，在本公开实施例中，各显示屏预先烧录有与点亮信号对应的初始化代码，初始化代码被配置为在点亮信号的调用下控制显示屏点亮屏幕。该初始化代码可以与现有技术中的相同，为本领域的普通技术人员应该理解具有的，在此不做赘述。
一般在显示屏开启触控功能时需要调用一些预先存储于显示屏中的程序、地址代码或电压等。在具体实施时，在本公开实施例中，各显示屏还预先烧录有与触控开启信号对应的触控地址代码，触控地址代码被配置为在触控开启信号的调用下触发显示屏的触控功能。具体地，为了避免触控功能触发错误，一个显示屏对应的触控地址代码是唯一的。在具体实施时，触控开启信号可以是采用I2C协议地址预先烧录于对应的显示屏中的。
在具体实施时，本公开实施例提供的显示设备可以为手机。当然，该显示设备也可以为：平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。对于该显示设备的其它必不可少的组成部分均为本领域的普通技术人员应该理解具有的，在此不做赘述，也不应作为对本公开的限制。
在显示设备为手机时，该手机可以为翻盖手机。其中，翻盖手机的外侧是显示屏20_1，内侧是显示屏20_2。当翻盖手机合上时，可以控制显示屏20_1点亮与显示，控制显示屏20_2熄灭。当翻开翻盖手机时，可以控制显示屏20_1熄灭，控制显示屏20_2点亮与显示。
下面以图2所示的结构以及图3所示的时序图为例对本公开实施例的工 作方式进行说明。但读者应知，本公开实施例的工作方式不局限于此。
在T1阶段中，开关控制信号2(Driver2)控制开关晶体管T30_21～T30_27均截止。开关控制信号1(Driver1)控制开关晶体管T30_11～T30_17均导通，以将其接收的子电压VSP、VSN、IOVCC、RESET、PWM、TE、ATTN提供给显示屏20_1。在开关控制信号Driver1上升沿时，处理器10向显示屏20_1输出点亮信号，通过点亮信号调用显示屏20_1中预先烧录的初始化代码，以根据接收的各子电压控制显示屏20_1点亮屏幕。并且，处理器11还向单通道模拟开关41输入“1”电平的使能信号与“0”电平的传输开启信号，以控制单通道模拟开关41选取MIPI接口50_1，将被配置为显示的数据信号提供给显示屏20_1，使显示屏20_1在接收的子电压VSP、VSN、IOVCC、RESET、PWM、TE、ATTN以及数据信号的控制下，实现画面显示功能。在开关控制信号Driver1下降沿时，处理器10向显示屏20_1输出熄灭信号，控制显示屏20_1熄灭屏幕。并且，开关控制信号Driver1控制开关晶体管T30_11～T30_17均截止，停止向显示屏20_1输入子电压。
在T2阶段中，开关控制信号1(Driver1)控制开关晶体管T30_11～T30_17均截止。开关控制信号2(Driver2)控制开关晶体管T30_21～T30_27均导通，以将其接收的子电压VSP、VSN、IOVCC、RESET、PWM、TE、ATTN提供给显示屏20_2。在开关控制信号Driver2上升沿时，处理器10向显示屏20_2输出点亮信号，通过点亮信号调用显示屏20_2中预先烧录的初始化代码，以根据接收的各子电压控制显示屏20_2点亮屏幕。并且，处理器11还向单通道模拟开关41输入“1”电平的使能信号与“1”电平的传输开启信号，以控制单通道模拟开关41选取MIPI接口50_2，将被配置为显示的数据信号提供给显示屏20_2，使显示屏20_2在接收的子电压VSP、VSN、IOVCC、RESET、PWM、TE、ATTN以及数据信号的控制下，实现画面显示功能。在开关控制信号Driver2下降沿时，处理器10向显示屏20_2输出熄灭信号，控制显示屏20_2熄灭屏幕。并且，开关控制信号Driver2控制开关晶体管T30_21～T30_27均截止，停止向显示屏20_2输入子电压。
并且，在T2阶段之后，可以重复上述工作过程。当然，在T2阶段之前，可以设置多个T1阶段，以控制显示屏20_1多次点亮和显示。同理。在T1阶段之前，可以设置多个T2阶段，以控制显示屏20_2多次点亮和显示。在此不作限定。
本公开实施例提供的切换控制装置、其控制方法及显示设备，通过主控制电路将与各显示屏一一对应的显示切换指令分时输出，可以在一个时间段内向一个显示屏输出被配置为显示的数据信号、被配置为控制显示屏点亮的点亮信号、以及被配置为控制显示屏熄屏的熄灭信号。并且在同一时间段内还向该显示屏对应的开关控制电路输出开关控制信号，以控制开关控制电路将主控制电路统一输出的显示控制电压仅输入到该显示屏中，以将显示控制电压选择性的输入该显示屏中，从而为该显示屏点亮屏幕以及显示画面时提供电压。本公开实施例中的主控制电路可以实现分时控制显示屏进行显示，并且还可以避免不进行显示的显示屏接受显示控制电压，从而可以降低主控制电路的功耗。
尽管已描述了本公开的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本公开范围的所有变更和修改。
显然，本领域的技术人员可以对本公开实施例进行各种改动和变型而不脱离本公开实施例的精神和范围。这样，倘若本公开实施例的这些修改和变型属于本公开权利要求及其等同技术的范围之内，则本公开也意图包含这些改动和变型在内。

Claims (13)

  1. 一种切换控制装置，其中，包括：主控制电路，以及与各显示屏一一对应的开关控制电路；
    所述主控制电路，被配置为输出显示控制电压以及分时输出与各所述显示屏一一对应的显示切换指令；其中，针对每一所述显示屏，所述显示切换指令包括：被配置为控制所述开关控制电路的开关控制信号、被配置为控制所述显示屏的显示画面的数据信号、被配置为控制所述显示屏点亮的点亮信号、以及被配置为控制所述显示屏熄屏的熄灭信号；
    所述主控制电路，被配置为在所述开关控制信号由无效脉冲信号切换为有效脉冲信号时，向对应的所述显示屏输出所述点亮信号，以及在所述开关控制信号由有效脉冲信号切换为无效脉冲信号时，向对应的所述显示屏输出所述熄灭信号；
    所述开关控制电路，与所述主控制电路电连接，被配置为接收所述显示控制电压以及对应于所述显示屏的开关控制信号；在接收到的所述开关控制信号的有效脉冲信号的控制下，将所述显示控制电压提供给对应的所述显示屏，以驱动所述显示屏根据接收的显示控制电压与数据信号进行显示。
  2. 如权利要求1所述的切换控制装置，其中，所述显示切换指令还包括：被配置为触发所述显示屏的触控功能的触控开启信号；
    所述主控制电路，被配置为向所述显示屏同时输出所述点亮信号和所述触控开启信号。
  3. 如权利要求1所述的切换控制装置，其中，所述显示控制电压包括：不同功能的多个子电压；
    各所述开关控制电路包括：与所述显示控制电压中的子电压一一对应的开关晶体管；
    所述开关晶体管的栅极被配置为接收对应的开关控制信号，所述开关晶体管的第一极被配置为接收对应的子电压，所述开关晶体管的第二极被配置 为向对应的显示屏输出接收的子电压。
  4. 如权利要求1所述的切换控制装置，其中，所述主控制电路包括：处理器。
  5. 如权利要求1所述的切换控制装置，其中，所述切换控制装置还包括：通道模拟开关，以及与各所述显示屏一一对应的处理器接口；
    所述主控制电路与所述通道模拟开关连接，所述通道模拟开关通过所述处理器接口分别与各所述显示屏连接；
    所述主控制电路，还被配置为向所述通道模拟开关输出与各所述显示屏一一对应的传输控制信号；
    所述通道模拟开关，被配置为在接收的传输控制信号的控制下，选取与所述传输控制信号对应的处理器接口，将接收的数据信号通过选取的处理器接口输出给对应的显示屏。
  6. 如权利要求5所述的切换控制装置，其中，所述显示屏为2个，所述通道模拟开关为单通道模拟开关。
  7. 一种如权利要求1～6任一项所述的切换控制装置的控制方法，其中，包括：
    主控制电路输出显示控制电压以及分时输出与各显示屏一一对应的显示切换指令；其中，针对每一所述显示屏，所述显示切换指令包括：被配置为控制开关控制电路的开关控制信号、被配置为控制所述显示屏的显示画面的数据信号、被配置为控制所述显示屏点亮的点亮信号、以及被配置为控制所述显示屏熄屏的熄灭信号；
    所述主控制电路在所述开关控制信号由无效脉冲信号切换为有效脉冲信号时，向对应的所述显示屏输出所述点亮信号，以及在所述开关控制信号由有效脉冲信号切换为无效脉冲信号时，向对应的所述显示屏输出所述熄灭信号；
    所述开关控制电路接收所述显示控制电压以及对应于所述显示屏的开关控制信号；在接收到的所述开关控制信号的有效脉冲信号的控制下，将所述 显示控制电压提供给对应的所述显示屏，以驱动所述显示屏根据接收的显示控制电压与数据信号进行显示。
  8. 如权利要求7所述的控制方法，其中，所述显示切换指令还包括：被配置为触发所述显示屏的触控功能的触控开启信号；
    所述主控制电路向对应的所述显示屏输出所述点亮信号，包括：
    所述主控制电路向所述显示屏同时输出所述点亮信号和所述触控开启信号。
  9. 如权利要求7所述的控制方法，其中，所述切换控制装置还包括：通道模拟开关，以及与各所述显示屏一一对应的处理器接口；
    所述控制方法，还包括：
    所述主控制电路向所述通道模拟开关输出与各所述显示屏一一对应的传输控制信号；
    所述通道模拟开关在接收的传输控制信号的控制下，选取与所述传输控制信号对应的处理器接口，将接收的数据信号通过选取的处理器接口输出给对应的显示屏。
  10. 一种显示设备，其中，包括至少两个显示屏以及如权利要求1-6任一项所述的切换控制装置；
    所述显示屏，被配置为接收对应的显示切换指令中的数据信号、点亮信号、熄灭信号以及显示控制电压，并在接收的所述点亮信号的控制下点亮屏幕，根据所述显示控制电压与所述数据信号进行显示，以及在接收的所述熄灭信号的控制下熄灭屏幕。
  11. 如权利要求10所述的显示设备，其中，各所述显示屏预先烧录有与所述点亮信号对应的初始化代码，所述初始化代码被配置为在所述点亮信号的调用下控制所述显示屏点亮屏幕。
  12. 如权利要求11所述的显示设备，其中，各所述显示屏还预先烧录有与触控开启信号对应的触控地址代码，所述触控地址代码被配置为在所述触控开启信号的调用下触发所述显示屏的触控功能。
  13. 如权利要求10所述的显示设备，其中，所述显示设备包括手机。
PCT/CN2019/078566 2018-03-30 2019-03-18 切换控制装置、其控制方法及显示设备 WO2019184755A1 (zh)

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