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 PDFInfo
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- 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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- display screen
- switch
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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.
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Abstract
Description
Claims (13)
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
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