WO2020133073A1 - 屏幕驱动方法、显示面板及显示装置 - Google Patents

屏幕驱动方法、显示面板及显示装置 Download PDF

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Publication number
WO2020133073A1
WO2020133073A1 PCT/CN2018/124378 CN2018124378W WO2020133073A1 WO 2020133073 A1 WO2020133073 A1 WO 2020133073A1 CN 2018124378 W CN2018124378 W CN 2018124378W WO 2020133073 A1 WO2020133073 A1 WO 2020133073A1
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WIPO (PCT)
Prior art keywords
screen
display area
target
voltage
driving voltage
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2018/124378
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English (en)
French (fr)
Inventor
黄筱辉
熊彬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Royole Technologies Co Ltd
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Shenzhen Royole Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Shenzhen Royole Technologies Co Ltd filed Critical Shenzhen Royole Technologies Co Ltd
Priority to PCT/CN2018/124378 priority Critical patent/WO2020133073A1/zh
Priority to CN201880095905.8A priority patent/CN112639948A/zh
Publication of WO2020133073A1 publication Critical patent/WO2020133073A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22Control 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
    • G09G3/30Control 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
    • G09G3/32Control 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]
    • G09G3/3208Control 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]
    • G09G3/3225Control 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
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22Control 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
    • G09G3/30Control 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
    • G09G3/32Control 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]
    • G09G3/3208Control 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]
    • G09G3/3225Control 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
    • G09G3/3258Control 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 with pixel circuitry controlling the voltage across the light-emitting element

Definitions

  • Embodiments of the present application provide a screen driving method, a display panel, and a display device, which can flexibly configure different driving voltages to light up display areas in different ranges.
  • a screen driving method including:
  • Determining a display area or a non-display area of the screen wherein the screen includes several pixel units, and different pixel units correspond to different driving voltages;
  • the target drive voltage is selected to light up all pixel units located in the display area.
  • the target driving voltage is a minimum driving voltage that lights all pixel units in the display area.
  • the screen includes several rows of the pixel units arranged in sequence;
  • the selection target driving voltage lights up all the pixel units located in the display area, including:
  • all pixel units located in the display area are lit.
  • the pixel units in each row are sequentially lit from the near end to the far end according to the first direction;
  • the determining the target driving voltage according to the position of each row of pixel units in the display area on the screen includes:
  • the driving voltage for lighting the pixel unit located in the corresponding row at the far end of the display area is selected as the target driving voltage.
  • each row of the pixel units corresponds to at least one driving voltage
  • the selection of the driving voltage for lighting the pixel unit located in the corresponding row at the far end of the display area as the target driving voltage includes:
  • the driving voltage corresponding to the number of rows is selected as the target driving voltage.
  • the target driving voltage is a saturation voltage that causes a driving circuit that lights a pixel unit located in a corresponding row at the far end of the display area to work in a saturated state.
  • the generating the target driving voltage includes:
  • the target driving voltage is a voltage difference between an anode voltage and a cathode voltage, wherein both the anode voltage and the cathode voltage are used to drive the pixel unit to emit light.
  • the lighting all the pixel units located in the display area according to the target driving voltage includes:
  • the determining the target driving voltage according to the position of each row of pixel units in the non-display area on the screen includes:
  • the driving voltage for lighting the pixel unit in the target row is selected as the target driving voltage.
  • the determining the display area or the non-display area of the screen includes: a touch operation of inputting any shape track on the screen to divide the screen into a display area or a non-display area.
  • the determining the display area or the non-display area of the screen includes dividing the screen into a display area or a non-display area based on folding of the screen.
  • a screen driving device including:
  • a determining module configured to determine a display area or a non-display area of the screen, wherein the screen includes several pixel units, and different pixel units correspond to different driving voltages;
  • the selection module is used for selecting a target driving voltage to light up all pixel units located in the display area.
  • the target driving voltage is a minimum driving voltage that lights all pixel units in the display area.
  • the screen includes several rows of the pixel units arranged in sequence;
  • the selection module includes:
  • a generating unit configured to generate a target driving voltage according to the position of each row of pixel units in the display area or the non-display area on the screen;
  • the lighting unit is used for lighting all the pixel units located in the display area according to the target driving voltage.
  • the pixel units in each row are sequentially lit from the near end to the far end according to the first direction;
  • the generating unit is specifically configured to: select, as a target driving voltage, a driving voltage for lighting a pixel unit located in a corresponding row at the far end of the display area.
  • each row of the pixel units corresponds to at least one driving voltage
  • the generating unit is also specifically used for:
  • the screen includes a plurality of rows of pixel units and drive circuits arranged in sequence, and each of the drive circuits is connected to a corresponding one of the pixel units;
  • Figure 1d is a schematic diagram of the output characteristics of a typical thin film transistor
  • FIG. 1e is a schematic diagram of the screen provided by the embodiment of the present application being folded into three folding areas;
  • FIG. 1f is a schematic diagram of voltage fluctuations at three given folding regions in FIG. 1e affected by IR voltage drop at a given voltage according to an embodiment of the present application;
  • FIG. 1f is a schematic diagram of voltage fluctuations at three given folding regions in FIG. 1e affected by IR voltage drop at a given voltage according to an embodiment of the present application;
  • FIG. 2a is a schematic flowchart of a screen driving method provided by an embodiment of the present application.
  • 2b is a schematic diagram of a bending sensor provided on a screen provided by an embodiment of the present application.
  • FIG. 2c is a schematic diagram of the screen being folded when displaying an all-white screen provided by an embodiment of the present application
  • 2d is a schematic flowchart of S22 in FIG. 2a;
  • FIG. 2e is a schematic flowchart of S222 in FIG. 2d;
  • 2f is a schematic flowchart of S221 in FIG. 2d;
  • 3a is a schematic structural diagram of a screen driving device provided by an embodiment of the present application.
  • FIG. 3b is a schematic structural diagram of the selection module in FIG. 3a;
  • FIG. 4 is a schematic structural diagram of a controller provided by an embodiment of the present application.
  • the screen 11 includes a plurality of rows of pixel units 111 and drive circuits 112 arranged in sequence, and each drive circuit 112 is connected to a corresponding pixel unit 111.
  • the pixel unit 111 may be an OLED (Organic Light-Emitting Diode, organic light emitting diode) light emitting unit.
  • the pixel unit 111 may include an anode, a hole injection layer, a hole transport layer, an organic light emitting layer, an electron transport layer, an electron injection layer, cathode.
  • the controller 12 may be a power chip, or the controller 12 may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a microcontroller , ARM (Acorn, RISC, Machine) or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or any combination of these components.
  • the controller 12 can also be any conventional processor, controller, microcontroller or state machine.
  • the controller 12 may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors combined with a DSP core, or any other such configuration.
  • the screen when the screen is a rigid screen, the screen can choose to light up the corresponding screen area according to the preset logic to achieve partition display. For example, a part of the screen area is a bright screen that can display pictures, and at the same time, another part of the screen area It is a black screen where no screen can be displayed. Due to the influence of IR voltage drop, the driving voltage required to light at least the pixel unit corresponding to the bright screen under the partition display is different from the driving voltage required to light at least the pixel unit corresponding to the full screen under the full screen display. . However, the screen still drives the corresponding pixel units in the partition display and the full-screen display with a fixed driving voltage. Such methods have the disadvantage of wasting power consumption.
  • the screen may be a TFT screen (Thin Film Transistor, TFT thin film field effect transistor), a TFD screen (Thin Film Diode, TFD thin film diode), a UFB screen (Ultra FineBright, UFB), an STN screen (Super TwistedNematic) , STN), OLED screen (Organic Light-Emitting Diode, OLED organic light emitting diode), AMOLED screen (Active Matrix/Organic Light Emitting Diode, AMOLED active matrix organic light emitting diode panel) and so on.
  • TFT screen Thin Film Transistor, TFT thin film field effect transistor
  • TFD screen Thin Film Diode, TFD thin film diode
  • UFB screen Ultra FineBright, UFB
  • STN screen Super TwistedNematic
  • OLED screen Organic Light-Emitting Diode
  • AMOLED screen Active Matrix/Organic Light Emitting Diode, AMOLED active matrix organic light emitting diode
  • the screen can be a rigid screen or a flexible screen.
  • the rigid screen or the flexible screen can be displayed in partitions.
  • the screen can be divided into multiple screen areas at different positions for display, and can also be divided at the same time. Multiple screen areas at different locations are used as black screens.
  • the user can input a touch operation on the screen.
  • the touch operation is to input a "rectangular" trajectory operation on the touch-sensitive surface of the screen.
  • "Rectangle" trajectory operation to obtain the touch coordinates corresponding to the four right angles of the screen area defined by the "rectangle”, according to the touch coordinates corresponding to the four right angles of the screen area defined by the "rectangle", you can determine "
  • the screen area defined by the "rectangle” is a display area or a non-display area.
  • users can define it according to business needs.
  • the screen determines each pixel unit corresponding to the screen area defined by the “rectangle” according to the touch coordinates corresponding to the four right angles, and then the driving voltage corresponding to each pixel unit can be determined.
  • the user can also input touch operations of any shape track on the screen, for example, the user enters a straight line track on the screen to divide the screen into two parts, so the screen according to the touch coordinates corresponding to the straight line, Get the position of the line on the screen. Therefore, the screen takes this straight line as a dividing line, and takes a part of the screen area as a display area and another part of the screen area as a non-display area.
  • the screen may also determine the display area or non-display area based on the folding characteristics. For example, the screen can be displayed without being folded or can be displayed after being folded. In the case of display without folding, the screen can choose to display in full screen, or to display part of the area, and another part of the black screen. In the case of display after folding, the screen can select a part of the folding area to display and another part of the folding area to be black.
  • the screen may be preset with one or more folding lines at different positions, for example, the folding lines of the folding area A, the folding area B, and the folding area C shown in FIG. 1e.
  • a plurality of bending sensors 13 are provided on the back of the screen, and the bending sensors 13 are used to detect the folding degree and folding position of the screen. It is arranged on the screen completely or completely, therefore, the bending sensor can partially or fully detect the folding position, folding radius, folding angle, etc. of the screen. Further, the bending sensor sends the detected folding data to the controller 12, so that the controller 12 adopts corresponding control logic.
  • the bending sensors 13 are arranged in sequence along the first direction.
  • the bending sensors 13 are arranged in sequence along the second direction, wherein each sensor is regularly arranged at a predetermined distance.
  • the screen When an external force exerts pressure on the screen to bend the screen, it can identify the folding area according to the position of the pressure change sensor. For example, the screen parses the folding position according to the folding data, so the folding position is used as the boundary, The screen takes a part of the folded area as the display area and another part of the folded area as the non-display area.
  • Each bending sensor 13 may be a resistance sensor or a micro-fiber sensor. In some embodiments, the bending sensor 13 may also be an acceleration sensor, a gravity sensor, a gyroscope, and so on.
  • the screen 11 is folded along the folding line 113, so the screen 11 is divided into a display area 114 and a non-display area 115, and all corresponding pixel units located in the display area 114 are lit and located in the non-display area 115 All corresponding pixel units are extinguished.
  • the driving voltage is used to drive the pixel unit to emit light.
  • the driving voltage can drive the pixel unit to emit light.
  • the driving voltage may be a voltage difference between the first power signal ELVDD and the second power signal ELVSS.
  • the driving voltage corresponding to the pixel units arranged at different positions on the screen may be different.
  • the pixel units of P1 correspond to different driving voltages.
  • the pixel unit in the first row is 3.3 volts.
  • the pixel unit in the fifth row is 4 volts.
  • the display panel can flexibly configure different driving voltages to light up display areas in different ranges, thereby providing the possibility of saving screen power consumption.
  • the screen 11 includes several rows of pixel units arranged in sequence. During display, the rows of pixel units are sequentially lit from the near end to the far end according to the first direction. The position of the first row of pixel units on the input screen is lit, and the far end is the position of the pixel unit furthest away from the near end when the power is input through the near end and is transmitted on the wire.
  • the first direction can be customized by the user. When the first direction is defined differently, the position of the near end or the far end will change accordingly.
  • the controller 12 starts to apply the driving voltage from the near end 11a, and the driving voltage is transmitted to the far end 11b, so that each row of pixel units can be lit in sequence.
  • the driving voltage V 1 that can normally light the pixel unit in the first row is less than at least The driving voltage V 100_1 of the pixel unit in the 100th row is normally lit.
  • the target driving voltage V 100_2 may also be larger than at least the normal lighting row drive voltage V 100_1 of the pixel unit 100, e.g., the drive voltage V 100_1 is 5 volts driving voltage V 100_1 can drive The voltage V 100_2 is 6 volts.
  • the target driving voltage is the minimum driving voltage for lighting all the pixel units in the display area, that is, the target driving voltage selects the driving voltage V 100_1 .
  • a part of the screen serves as a display area, and another part serves as a non-display area.
  • the target driving voltage can be calculated from each row of pixel units in the display area, or can be calculated inversely from the non-display area. Therefore, referring to Figure 2d, S22 includes:
  • S221 Generate a target driving voltage according to the position of each row of pixel units in the display area or non-display area on the screen;
  • the display area includes several rows of pixel units that have been lit, and the non-display area includes several rows of pixel units that have not been lit.
  • the area of the pixel unit located in the corresponding row at the far end of the display area is the transition area between the display area and the non-display area. Therefore, it can divide a full-screen screen into the display area and the non-display area.
  • the display panel can select and generate a target drive according to the position of each row of pixel units in the display area on the screen Voltage. For example, the display panel selects the driving voltage for lighting the pixel unit in the corresponding row at the far end of the display area as the target driving voltage. For example, the driving voltage corresponding to the pixel unit in the 100th row is selected as the target driving voltage. It can ensure that all the pixel units in the display area are lit.
  • each row of pixel cells corresponds to at least one driving voltage, in the process of selecting the driving voltage for lighting the pixel cells at the corresponding row at the far end of the display area as the target driving voltage:
  • the target driving voltage is the difference between the target anode voltage (ELVDD) and the target cathode voltage (ELVSS) of the corresponding OLED device, where both the target anode voltage and the target cathode voltage are used For driving the pixel unit to emit light.
  • EVSS target cathode voltage
  • S222 includes:
  • the display panel can adjust not only the target anode voltage ELVDD or the target cathode voltage ELVSS, but also the target anode voltage ELVDD and the target cathode voltage ELVSS at the same time, as long as the adjusted target anode voltage and target cathode voltage are both
  • the pressure difference between the two may satisfy the preset condition, that is, the difference between the adjusted target anode voltage and the target cathode voltage may be the target driving voltage.
  • the display panel in addition to generating the target driving voltage according to the display area, can also generate the target driving voltage according to the position of the row of pixel units in the non-display area at the screen. For example, first, the display panel selects a row of pixels from the display area The unit serves as a target row pixel unit, which is closest to the pixel unit in the non-display area. For example, since the pixel unit in row 100 is closest to the pixel unit in row 101 in the non-display area, that is, the distance between the pixel unit in row 100 and the pixel unit in row 101 in the non-display area is shorter than that in the pixel unit in row 102 The distance to any pixel unit in the 150th row pixel unit is the shortest. Therefore, the display panel selects the 100th row pixel unit as the target row pixel unit.
  • the display panel generates a driving voltage for lighting the pixel unit located in the target row as the target driving voltage.
  • the display panel continuously generates 100 pulses to light up the display area.
  • the selection module 32 is used to select a target driving voltage to light up all pixel units located in the display area.
  • the target driving voltage is the minimum driving voltage that lights all pixel cells in the display area.
  • the screen includes several rows of the pixel units arranged in sequence.
  • the selection module 32 includes: a generating unit 321 and a lighting unit 322.
  • the lighting unit 322 is used for lighting all pixel units located in the display area according to the target driving voltage.
  • the rows of pixel units are sequentially lit from the near end to the far end according to the first direction.
  • the generating unit 321 is specifically used to select the driving voltage for lighting the pixel unit located in the corresponding row at the far end of the display area as the target driving voltage.
  • each row of pixel cells corresponds to at least one driving voltage.
  • the generating unit 321 is further specifically used for: determining the number of lines where the pixel unit located at the far end of the display area is located; and selecting the driving voltage corresponding to the number of lines as the target driving voltage.
  • the target driving voltage is a saturation voltage under which the driving circuit that illuminates the pixel unit at the corresponding row at the far end of the display area enters a saturated state.
  • the area where the pixel unit located in the corresponding row at the far end of the display area is the transition area between the display area and the non-display area.
  • the generating unit 321 is specifically configured to: determine the number of pulses corresponding to the target driving voltage; generate pulses corresponding to the number of pulses as the target driving voltage.
  • the target driving voltage is the difference between the target anode voltage and the target cathode voltage, where both the target anode voltage and the target cathode voltage are used to drive the pixel unit to emit light.
  • the lighting unit 322 is specifically configured to: adjust the anode voltage and/or the cathode voltage so that the voltage difference between the anode voltage and the cathode voltage is the target driving voltage; according to the target driving voltage, the lighting is located in the display area Of all pixel units.
  • the generating unit 321 is specifically configured to: select a row of pixel units from the display area as the target row pixel unit, the target row pixel unit being closest to the pixel unit in the non-display area; The drive voltage of the cell serves as the target drive voltage.
  • the determination module 31 is specifically configured to divide the screen into a display area or a non-display area based on the folding of the screen.
  • the above screen driving device can execute the screen driving method provided by the embodiments of the present application, and has function modules and beneficial effects corresponding to the execution method.
  • the screen driving method provided in the embodiments of the present application.
  • the processor 41 and the memory 42 may be connected through a bus or in other ways.
  • the connection through a bus is used as an example.
  • the memory 42 is a non-volatile computer-readable storage medium, and can be used to store non-volatile software programs, non-volatile computer executable programs, and modules, such as program instructions corresponding to the screen driving method in the embodiments of the present application. /Module.
  • the processor 41 executes various functional applications and data processing of the screen drive device by running non-volatile software programs, instructions, and modules stored in the memory 42, that is, the screen drive method and the device embodiment described above are implemented The function of each module.
  • the memory 42 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.
  • the memory 42 may optionally include memories remotely provided with respect to the processor 41, and these remote memories may be connected to the processor 41 through a network. Examples of the aforementioned network include, but are not limited to, the Internet, intranet, local area network, mobile communication network, and combinations thereof.
  • the program instructions/modules are stored in the memory 42, and when executed by the one or more processors 41, execute the screen driving method in any of the above method embodiments.
  • the controller 400 in the embodiment of the present application exists in various forms, and executes the steps described above.
  • the controller 400 can flexibly configure different driving voltages to light up display areas in different ranges, thereby providing the possibility of saving screen power consumption.
  • An embodiment of the present application also provides a non-volatile computer storage medium that stores computer-executable instructions that are executed by one or more processors, such as a process in FIG. 4
  • the processor 41 may enable the one or more processors to execute the screen driving method in any of the above method embodiments.
  • An embodiment of the present application also provides a computer program product, the computer program product includes a computer program stored on a non-volatile computer-readable storage medium, the computer program includes program instructions, and when the program instructions are controlled When the device is executed, the controller is caused to execute the above-mentioned screen driving method.
  • the device or device embodiments described above are only schematic, wherein the unit modules described as separate components may or may not be physically separated, and the components displayed as the module units may or may not be physical units , Can be located in one place, or can be distributed to multiple network module units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each embodiment can be implemented by means of software plus a general hardware platform, and of course, it can also be implemented by hardware.
  • the above technical solutions can be embodied in the form of software products in essence or part of contributions to related technologies, and the computer software products can be stored in computer-readable storage media, such as ROM/RAM, magnetic disks , CD, etc., including several instructions to enable a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.
  • An embodiment of the present application provides a display device.
  • the display device can select the display panel described in the above embodiments.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Control Of El Displays (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

一种屏幕驱动方法(200)、显示面板及显示装置,其中,屏幕驱动方法(200)包括:确定屏幕(11)的显示区(114)或非显示区(115),其中,屏幕(11)包括若干像素单元,不同的像素单元对应不同的驱动电压(S21);选择目标驱动电压(V 100)点亮位于显示区(114)内的全部像素单元(S22)。能够灵活配置不同驱动电压以点亮不同范围的显示区(114),从而为节省屏幕(11)功耗提供了可能。

Description

屏幕驱动方法、显示面板及显示装置 技术领域
本申请实施例涉及显示技术领域,尤其涉及一种屏幕驱动方法、显示面板及显示装置。
背景技术
有机发光二极管(Organic Light-Emitting Diode,OLED)显示技术具有主动发光、低电压驱动、高亮度、全色彩等特点,凭借着诸多优点,OLED显示技术广泛应用于屏幕、手机、电脑、电视等领域。
显示时,屏幕输出驱动电压,以驱动像素单元发光。考虑到保证屏幕远端的亮度,传统技术需要配置足够电压裕量。然而,一般地,当需要屏幕的部分区域显示画面,另一部分区域黑屏时,传统技术采用固定驱动电压驱动像素单元发光。然而,全屏显示或部分屏显示都采用固定驱动电压驱动,对于显示区对应的一些像素单元而言,固定驱动电压已远大于足以点亮的驱动电压,因此,采用固定驱动电压方式不利于节省屏幕的功耗。
申请内容
本申请实施例提供一种屏幕驱动方法、显示面板及显示装置,其能够灵活配置不同驱动电压以点亮不同范围的显示区。
本申请实施例解决其技术问题提供以下技术方案:
一种屏幕驱动方法,包括:
确定所述屏幕的显示区或非显示区,其中,所述屏幕包括若干像素单元,不同的像素单元对应不同的驱动电压;
选择目标驱动电压点亮位于所述显示区内的全部像素单元。
可选地,所述目标驱动电压为点亮所述显示区中全部像素单元的最小驱动电压。
可选地,所述屏幕包括依序排列的若干行所述像素单元;
所述选择目标驱动电压点亮位于所述显示区内的全部像素单元,包 括:
根据所述显示区或所述非显示区中各行像素单元在所述屏幕的位置,产生目标驱动电压;
根据所述目标驱动电压,点亮位于所述显示区内的全部像素单元。
可选地,显示时,按照第一方向自近端向远端依序点亮各行所述像素单元;
所述根据所述显示区中各行像素单元在所述屏幕的位置,确定目标驱动电压,包括:
选择用于点亮位于所述显示区远端对应行的像素单元的驱动电压作为目标驱动电压。
可选地,每行所述像素单元皆对应至少一个驱动电压;
所述选择用于点亮位于所述显示区远端对应行的像素单元的驱动电压作为目标驱动电压,包括:
确定位于所述显示区远端的像素单元所在的行数;
选择与所述行数对应的驱动电压作为目标驱动电压。
可选地,所述目标驱动电压为使得点亮位于所述显示区远端对应行的像素单元的驱动电路工作在饱和状态下的饱和电压。
可选地,折叠所述屏幕时,位于所述显示区远端对应行的像素单元所在区域为所述显示区与所述非显示区之间的过渡区域。
可选地,所述产生目标驱动电压,包括:
确定与所述目标驱动电压对应的脉冲数量;
产生对应所述脉冲数量的脉冲作为目标驱动电压。
可选地,所述目标驱动电压为阳极电压与阴极电压两者的压差,其中,所述阳极电压与所述阴极电压皆用于驱动所述像素单元发光。
可选地,所述根据所述目标驱动电压,点亮位于所述显示区内的全部像素单元,包括:
调节所述阳极电压和/或所述阴极电压,使得所述阳极电压与所述阴极电压两者的压差为所述目标驱动电压;
根据所述目标驱动电压,点亮位于所述显示区内的全部像素单元。
可选地,所述根据所述非显示区中各行像素单元在所述屏幕的位置,确定目标驱动电压,包括:
从所述显示区中选择一行像素单元作为目标行像素单元,所述目标行像素单元最靠近所述非显示区中的像素单元;
选择用于点亮位于所述目标行像素单元的驱动电压作为目标驱动电压。
可选地,所述确定所述屏幕的显示区或非显示区包括:在屏幕中输入任何形状轨迹的触控操作将所述屏幕划分为显示区或非显示区。
可选地,所述确定所述屏幕的显示区或非显示区包括:基于屏幕的折叠将所述屏幕划分为显示区或非显示区。
本申请实施例解决其技术问题提供以下技术方案:
一种屏幕驱动装置,包括:
确定模块,用于确定所述屏幕的显示区或非显示区,其中,所述屏幕包括若干像素单元,不同的像素单元对应不同的驱动电压;
选择模块,用于选择目标驱动电压点亮位于所述显示区内的全部像素单元。
可选地,所述目标驱动电压为点亮所述显示区中全部像素单元的最小驱动电压。
可选地,所述屏幕包括依序排列的若干行所述像素单元;
所述选择模块包括:
产生单元,用于根据所述显示区或所述非显示区中各行像素单元在所述屏幕的位置,产生目标驱动电压;
点亮单元,用于根据所述目标驱动电压,点亮位于所述显示区内的全部像素单元。
可选地,显示时,按照第一方向自近端向远端依序点亮各行所述像素单元;
所述产生单元具体用于:选择用于点亮位于所述显示区远端对应行的像素单元的驱动电压作为目标驱动电压。
可选地,每行所述像素单元皆对应至少一个驱动电压;
所述产生单元还具体用于:
确定位于所述显示区远端的像素单元所在的行数;
选择与所述行数对应的驱动电压作为目标驱动电压。
可选地,所述目标驱动电压为使得点亮位于所述显示区远端对应行的像素单元的驱动电路工作在饱和状态下的饱和电压。
可选地,折叠所述屏幕时,位于所述显示区远端对应行的像素单元所在区域为所述显示区与所述非显示区之间的过渡区域。
可选地,所述产生单元具体用于:
确定与所述目标驱动电压对应的脉冲数量;
产生对应所述脉冲数量的脉冲作为目标驱动电压。
可选地,所述目标驱动电压为目标阳极电压与目标阴极电压两者的压差,其中,所述目标阳极电压与所述目标阴极电压皆用于驱动所述像素单元发光。
可选地,所述点亮单元具体用于:
调节所述目标阳极电压和/或所述目标阴极电压,使得所述目标阳极电压与所述目标阴极电压两者的压差为所述目标驱动电压;
根据所述目标驱动电压,点亮位于所述显示区内的全部像素单元。
可选地,所述产生单元具体用于:
从所述显示区中选择一行像素单元作为目标行像素单元,所述目标行像素单元最靠近所述非显示区中的像素单元;
产生用于点亮位于所述目标行像素单元的驱动电压作为目标驱动电压。
可选地,所述确定模块具体用于:在屏幕中输入任何形状轨迹的触控操作将所述屏幕划分为显示区或非显示区。
可选地,所述确定模块具体用于:基于屏幕的折叠将所述屏幕划分为显示区或非显示区。
本申请实施例解决其技术问题提供以下技术方案:
本申请实施例提供一种计算机程序产品,所述计算机程序产品包括存储在非易失性计算机可读存储介质上的计算机程序,所述计算机程序 包括程序指令,当所述程序指令被控制器执行时,使所述控制器执行上述的屏幕驱动方法。
本申请实施例解决其技术问题提供以下技术方案:
本申请实施例还提供了一种非易失性计算机可读存储介质,所述非易失性计算机可读存储介质存储有计算机可执行指令,所述计算机可执行指令用于使控制器执行任一项所述的屏幕驱动方法。
本申请实施例解决其技术问题提供以下技术方案:
一种控制器,包括:
至少一个处理器;以及,
与所述至少一个处理器通信连接的存储器;其中,
所述存储器存储有可被所述至少一个处理器执行的指令,所述指令被所述至少一个处理器执行,以使所述至少一个处理器能够执行任一项所述的屏幕驱动方法。
本申请实施例解决其技术问题提供以下技术方案:
一种显示面板,包括:
屏幕,包括依序排列的若干行像素单元及驱动电路,每个所述驱动电路皆与对应的一个所述像素单元连接;以及
所述的控制器,与每个所述驱动电路连接。
本申请实施例解决其技术问题提供以下技术方案:
一种显示装置,包括:所述的显示面板。
与现有技术相比较,在本申请实施例提供的屏幕驱动方法中,确定屏幕的显示区或非显示区,其中,屏幕包括若干像素单元,不同的像素单元对应不同的驱动电压,选择目标驱动电压点亮位于显示区内的全部像素单元。因此,其能够灵活配置不同驱动电压以点亮不同范围的显示区,从而为节省屏幕功耗提供了可能。
附图说明
为了更清楚地说明本申请实施例的技术方案,下面将对本申请实施例中所需要使用的附图作简单地介绍。显而易见地,下面所描述的附图 仅仅是本申请的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1a是本申请实施例提供的一种显示面板的结构示意图;
图1b是本申请实施例提供的像素单元被驱动的电路原理框图;
图1c是本申请实施例提供的一种驱动电路的电路原理框图;
图1d是一种典型的薄膜晶体管的输出特性示意图;
图1e是本申请实施例提供的屏幕被折叠成3个折叠区域的示意图;
图1f是本申请实施例提供的在给定电压下,图1e中3个折叠区域受到IR压降影响而出现电压波动的示意图;
图2a是本申请实施例提供的一种屏幕驱动方法的流程示意图;
图2b是本申请实施例提供的一种弯曲传感器设置于屏幕的示意图;
图2c是本申请实施例提供的在显示全白画面下,屏幕被折叠的示意图;
图2d是图2a中S22的流程示意图;
图2e是图2d中S222的流程示意图;
图2f是图2d中S221的流程示意图;
图3a是本申请实施例提供的一种屏幕驱动装置的结构示意图;
图3b是图3a中选择模块的结构示意图;
图4是本申请实施例提供的一种控制器的结构示意图。
具体实施方式
为了便于理解本申请,下面结合附图和具体实施例,对本申请进行更详细的说明。需要说明的是,当元件被表述“固定于”另一个元件,它可以直接在另一个元件上、或者其间可以存在一个或多个居中的元件。当一个元件被表述“连接”另一个元件,它可以是直接连接到另一个元件、或者其间可以存在一个或多个居中的元件。本说明书所使用的术语“垂直的”、“水平的”、“左”、“右”、“内”、“外”以及类似的表述只是为了说明的目的,并且仅表达实质上的位置关系,例如对于“垂直的”,如果某位置关系因为了实现某目的的缘故并非严格垂直,但实质上是垂直的,或 者利用了垂直的特性,则属于本说明书所述“垂直的”范畴。
除非另有定义,本说明书所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的,不是用于限制本申请。本说明书所使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。
此外,下面所描述的本申请不同实施例中所涉及的技术特征只要彼此之间未构成冲突就可以相互结合。
本申请实施例提供一种显示面板。请一并参阅图1a与图1b,显示面板10包括屏幕11与控制器12。
可选的,屏幕11可使用柔性基板或刚性基板,柔性基板诸如包括薄玻璃、金属箔片或塑料基底等等具有柔性的材料,例如,塑料基底具有包括涂覆在基膜的两侧上的柔性结构,基膜包括诸如聚酰亚胺(PI)、聚碳酸酯(PC)、聚乙二醇对酞酸酯(PET)、聚醚砜(PES)、聚乙烯薄膜(PEN)、纤维增强塑料(FRP)等等树脂。刚性基板可以为,但不局限于玻璃基板、金属基板、或陶瓷基板。
屏幕11包括依序排列的若干行像素单元111及驱动电路112,每个驱动电路112皆与对应的一个像素单元111连接。
像素单元111可以为OLED(Organic Light-Emitting Diode,有机发光二极管)发光单元,像素单元111可以依次包括阳极、空穴注入层、空穴传输层、有机发光层、电子传输层、电子注入层、阴极。
驱动电路112用于驱动像素单元111发光,其中,驱动电路112可以采用任意合适类型的驱动电路,例如,请参阅图1c,驱动电路112包括第一薄膜晶体管T1、第二薄膜晶体管T2及存储电容C1,其中,第一薄膜晶体管T1的栅极用于接收扫描信号SEL,第一薄膜晶体管T1的漏极用于接收数据信号Data,第二薄膜晶体管T2的漏极用于被施加第一电源信号ELVDD,第二薄膜晶体管T2的源极用于被施加第二电源信号ELVSS。
在一些实施例中,第一电源信号ELVDD可作为OLED器件的阳极 电压,第二电源信号ELVSS可作为OLED器件的阴极电压,阳极电压与阴极电压皆用于驱动像素单元发光,其中,阳极电压与阴极电压两者的压差为驱动电压。
当扫描信号SEL为高电平,第一薄膜晶体管T1导通,数据信号Data为存储电容C1充电,存储电容C1的电压控制第二薄膜晶体管T2的漏极电流。当扫描信号SEL为低电平,第一薄膜晶体管T1截止,存储在存储电容C1的电荷维持着第二薄膜晶体管T2的导通,于是,漏源电流驱动OLED器件发光。
控制器12用于点亮屏幕11,控制器12可为屏幕11提供驱动电源,控制器12分别通过第一导线组件121与第二导线组件122连接至屏幕11,其中,第一导线组件121用于传输第一电源信号ELVDD,第二导线组件122用于传输第二电源信号ELVSS。
在一些实施例中,控制器12可以为电源芯片,或者,控制器12可以为通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)、单片机、ARM(Acorn RISC Machine)或其它可编程逻辑器件、分立门或晶体管逻辑、分立的硬件组件或者这些部件的任何组合。还有,控制器12还可以是任何传统处理器、控制器、微控制器或状态机。控制器12也可以被实现为计算设备的组合,例如,DSP和微处理器的组合、多个微处理器、一个或多个微处理器结合DSP核、或任何其它这种配置。
一般的,由于OLED器件为电流注入型发光显示器件,在外部电压的驱动下,有机材料与发光材料通过载流子的注入和复合导致发光,因此,第一电源信号ELVDD与第二电源信号ELVSS两者的压差是影响OLED器件发光强度的主要因素。
一般的,显示面板10的IR压降(IR-Drop)主要分为面内走线IR-Drop与面外走线IR-Drop,IR压降是指出现在集成电路中电源和地网络上电压下降或升高的现象,IR压降极大影响显示面板10的驱动能力。随着屏幕11的亮度增加,IR压降对显示面板10的影响越发严重。为了避免此类影响,一般会预留足够电压裕量,以保证驱动电压能够驱动屏幕远 端的发光。
请参阅图1d,由于IR压降的影响,导致驱动电路112中第二薄膜晶体管T2的栅源电压V gs或漏源电压V ds下降,进而导致漏源电流I ds出现下降。当漏源电流I ds下降,OLED器件的发光亮度随之下降。
举例而言,当屏幕为刚性屏幕时,屏幕可以按照预设逻辑选择点亮对应屏幕区域,以实现分区显示,例如,一部分屏幕区域为可显示画面的亮屏,与此同时,另一部分屏幕区域为未可显示画面的黑屏。由于受IR压降的影响,在分区显示下至少能够点亮亮屏对应的像素单元所需要的驱动电压与在全屏显示下至少能够点亮全屏幕对应的像素单元所需要的驱动电压是不同的。然而,屏幕仍以固定的驱动电压驱动分区显示和全屏显示下对应的像素单元。此类方式存在功耗浪费的不足之处。
再举例而言,当屏幕为柔性屏幕时,请一并参阅图1e与图1f,将屏幕11划分为3个折叠区域,分别为折叠区域A、折叠区域B及折叠区域C。当屏幕11显示全白画面时,给定屏幕11的驱动电压。由于受到IR压降的影响,折叠区域A、折叠区域B及折叠区域C对应的实际驱动电压皆出现下降,并且,距离电压源越远的,亦即,位于屏幕远端的折叠区域的实际驱动电压下降相比于位于屏幕近端的折叠区域的严重,但是由于预设有电压裕量,位于屏幕远端的折叠区域C还能够驱动对应的像素单元发光,但是,此类方式存在功耗浪费的不足之处。
举例而言,由于OLED器件的功耗W=(ELVDD-ELVSS)*I oled,其中,I oled为流经OLED器件的驱动电流。传统技术将ELVSS/ELVDD设定为固定值,显示时留有足够裕量,保证屏幕远端的亮度。对于显示面板,折叠时,将屏幕分为两个折叠区域,一个折叠区域用于显示画面,于是,需要点亮该折叠区域。另一个折叠区域无需点亮画面,因此,无需点亮该折叠区域。
如前所述,由于折叠后的屏幕中显示区仍以固定驱动电压来驱动,然而,该显示区实际并不需要如此大的驱动电压也可以全部点亮该显示区,因此,传统方式存在功耗浪费的不足之处。
考虑到降低功耗的可能性,为此,本申请实施例提供一种屏幕驱动 方法。请参阅图2a,屏幕驱动方法200包括:
S21、确定屏幕的显示区或非显示区,其中,屏幕包括若干像素单元,不同的像素单元对应不同的驱动电压;
在本实施例中,屏幕可以TFT屏幕(Thin Film Transistor,TFT薄膜场效应晶体管)、TFD屏幕(Thin Film Diode,TFD薄膜二极管)、UFB屏幕(Ultra Fine Bright,UFB)、STN屏幕(Super Twisted Nematic,STN)、OLED屏幕(Organic Light-Emitting Diode,OLED有机发光二极管)、AMOLED屏幕(Active Matrix/Organic Light Emitting Diode,AMOLED有源矩阵有机发光二极体面板)以及等等。
在基板材质上,屏幕可以为刚性屏幕,亦可以为柔性屏幕,刚性屏幕或柔性屏幕可分区显示,当分区显示时,屏幕可同时划分出不同位置的多个屏幕区域作为显示,亦可以同时划分出不同位置的多个屏幕区域作为黑屏。
在一些实施例中,屏幕具有触敏表面,触敏表面作为用户操作的输入接口,可以检测用户在触敏表面上的操作,该操作可以对触敏表面的单击、双击、滑动、长按、拖曳以及等等。用户每次的操作在触敏表面产生一定的压力强度,该压力强度可以使用各种方法和各种传感器或者各种传感器的组合来检测。比如,通过在触敏表面检测触敏表面的电容的变化大小,或者,检测触敏表面的电阻的变化大小,或者,检测触敏表面的电容变化大小和电阻变化大小,以及等等。在上述过程中,通过传感器将触敏表面产生的压力强度转化成电信号,屏幕根据该电信号,将用户在触敏表面产生的控制命令分发出选择事件,并且接收和处理该选择事件。
在确定屏幕的显示区或非显示区时,用户可在屏幕上输入触控操作,例如,该触控操作为在屏幕的触敏表面上输入呈“矩形”的轨迹操作,于是,屏幕根据该“矩形”的轨迹操作,得到该“矩形”所界定的屏幕区域的四个直角对应的触控坐标,根据“矩形”所界定的屏幕区域的四个直角对应的触控坐标,便可以确定“矩形”所界定的屏幕区域为显示区或非显示区。至于“矩形”所界定的屏幕区域为显示区还是非显 示区,用户可以根据业务需求自行定义。
其次,屏幕根据四个直角对应的触控坐标,确定“矩形”所界定的屏幕区域对应的各个像素单元,进而便可以确定各个像素单元对应的驱动电压。
可以理解的是,用户还可以在屏幕中输入任何形状轨迹的触控操作,例如,用户在屏幕中输入直线的轨迹以将屏幕划分成两部分,于是,屏幕根据该直线对应的触控坐标,得到直线在屏幕的位置。因此,屏幕以该直线为分界线,将一部分屏幕区域作为显示区,另一部分屏幕区域作为非显示区。
在一些实施例中,屏幕还可以基于折叠特性以确定显示区或非显示区。举例而言,屏幕可以未经折叠而显示,亦可以经过折叠而显示。在未经折叠而显示的情况下,屏幕可以选择全屏显示,亦可以选择部分区域显示、另一部分部分黑屏。在经过折叠而显示的情况下,屏幕可以选择一部分折叠区域显示、另一部分折叠区域黑屏。并且,屏幕可被预设一条或多条不同位置的折叠线,例如图1e所示的折叠区域A、折叠区域B及折叠区域C各自的折叠线。
在一些实施例中,请参阅图2b,屏幕的背面设置有若干弯曲传感器13,弯曲传感器13用于检测屏幕的折叠度以及折叠位置,其中,弯曲传感器可以根据业务需求,沿着预设方向部分地或者全面地布设于屏幕上,因此,弯曲传感器能够部分地或者全面地检测到屏幕的折叠位置、折叠半径、折叠角度等等。进一步的,弯曲传感器将检测的折叠数据发送给控制器12,以使控制器12采取对应的控制逻辑。
举例而言,请继续参阅图2b,在纵向上,各个弯曲传感器13分别沿着第一方向依次排列。在横向上,各个弯曲传感器13分别沿着第二方向依次排列,其中,每个传感器有规律地间隔预设距离进行排列。
当外力向屏幕施加压力而使屏幕弯曲时,其可以根据压力变化的传感器所处的位置而识别出折叠区域,例如,屏幕根据折叠数据,解析出折叠位置,于是,以折叠位置为分界线,屏幕将一部分折叠区域作为显示区,另一部分折叠区域作为非显示区。
每个弯曲传感器13可以是电阻传感器或者微光纤传感器。在一些实施例中,弯曲传感器13还可以为加速度传感器、重力传感器、陀螺仪等等。
请参阅图2c,屏幕11沿着折叠线113折叠,于是,屏幕11被划分为显示区114与非显示区115,位于显示区114中对应的全部像素单元被点亮,位于非显示区115中对应的全部像素单元被熄灭。
驱动电压用于驱动像素单元发光,当特定像素单元被选定后,驱动电压便可以驱动像素单元发光。在一些实施例中,驱动电压可以为第一电源信号ELVDD与第二电源信号ELVSS两者的压差。
对于排列在屏幕不同位置的各个像素单元而言,若要正常的点亮各个像素单元,排列在屏幕不同位置的像素单元对应的驱动电压可不同,为了区别传统技术,本申请实施例中的不同的像素单元对应不同的驱动电压,例如,第一行像素单元为3.3伏,考虑到IR压降的影响,第五行像素单元为4伏。
S22、选择目标驱动电压点亮位于显示区内的全部像素单元。
在本实施例中,目标驱动电压为用于点亮位于显示区内的全部像素单元的电压,显示面板可以从位于显示区内各个像素单元对应的各个驱动电压中选择满足预设条件的驱动电压作为目标驱动电压,以该目标驱动电压点亮位于显示区内的全部像素单元。
因此,显示面板能够灵活配置不同驱动电压以点亮不同范围的显示区,从而为节省屏幕功耗提供了可能。
在一些实施例中,请继续参阅图2c,屏幕11包括依序排列的若干行像素单元,显示时,按照第一方向自近端向远端依序点亮各行像素单元,近端为电源开始输入屏幕点亮的首行像素单元所在的位置,远端为电源通过近端输入时,施加在导线上传输至距离近端最远的像素单元所在的位置。第一方向可由用户自定义,当第一方向被定义不同时,近端或远端的位置会随之改变。例如,第一方向为负Y轴方向,控制器12设置在屏幕11的顶端,近端11a为距离控制器12最近的像素单元所在的位置,远端11b为折叠线113对应的像素单元所在的位置。同理可得, 当第一方向为正Y轴方向时,控制器12设置在屏幕11的底端,近端11a为折叠线113对应的像素单元所在的位置,远端11b为距离近端11a最远的并属于显示区114中像素单元所在的位置。
控制器12自近端11a开始施加驱动电压,该驱动电压传输至远端11b,于是便可以依序点亮各行像素单元。
在一些实施例中,目标驱动电压为点亮显示区中全部像素单元的最小驱动电压,例如,请继续参阅图2c,屏幕11排列有150行像素单元,其中,显示区114包括第1行像素单元至第100行像素单元,非显示区115包括第101行像素单元至第150行像素单元。首先,第1行像素单元所在位置为近端,第100行像素单元所在位置为远端,考虑到IR压降的影响,至少能够正常点亮第1行像素单元的驱动电压V 1小于至少能够正常点亮第100行像素单元的驱动电压V 100_1,为了保证能够全部点亮显示区114的全部像素单元,其选择正常点亮第100行像素单元的驱动电压V 100_2作为目标驱动电压,然而,在一些实施例中,该目标驱动电压V 100_2还可以比至少能够正常点亮第100行像素单元的驱动电压V 100_1更大,例如,驱动电压V 100_1为5伏便可以驱动电压V 100_1,驱动电压V 100_2为6伏。但是,考虑到节省屏幕功耗,在一些实施例中,目标驱动电压为点亮显示区中全部像素单元的最小驱动电压,亦即,目标驱动电压选择驱动电压V 100_1
在一些实施例中,对于折叠后的屏幕,一部分屏幕作为显示区,另一部分作为非显示区。目标驱动电压可以由显示区中的各行像素单元推算出,亦可以由非显示区逆向推算出。因此,请参阅图2d,S22包括:
S221、根据显示区或非显示区中各行像素单元在屏幕的位置,产生目标驱动电压;
S222、根据目标驱动电压,点亮位于显示区内的全部像素单元。
显示区包括已被点亮的若干行像素单元,非显示区包括未被点亮的若干行像素单元。折叠屏幕时,位于显示区远端对应行的像素单元所在区域为显示区与非显示区之间的过渡区域,因此,其便可以将一个全屏的屏幕划分为显示区与非显示区。
在显示区中,已被点亮的各行像素单元的位置不同,每个位置都对应有驱动电压,于是,显示面板通过根据显示区中各行像素单元在屏幕的位置,便可以选择并产生目标驱动电压。例如,显示面板选择用于点亮位于显示区远端对应行的像素单元的驱动电压作为目标驱动电压,例如,选择第100行像素单元对应的驱动电压作为目标驱动电压,采用此种方式,其能够保证点亮显示区中全部像素单元。
由于每行像素单元皆对应至少一个驱动电压,因此,在选择用于点亮位于显示区远端对应行的像素单元的驱动电压作为目标驱动电压的过程中:
首先,显示面板可以确定位于显示区远端的像素单元所在的行数。例如,显示面板通过检测显示区与非显示区之间的折叠线所在的折叠位置,确定与折叠位置所对应的像素单元所在的行数。在一些实施例中,折叠线的位置可以被预设,亦可以无需预设,跟随用户的折叠位置而灵活确定。
其次,显示面板选择与行数对应的驱动电压作为目标驱动电压。
当显示面板选中对应行数的像素单元后,目标驱动电压为对应OLED器件的目标阳极电压(ELVDD)与目标阴极电压(ELVSS)两者的压差,其中,目标阳极电压与目标阴极电压皆用于驱动像素单元发光。根据目标驱动电压点亮位于显示区内的全部像素单元时,在一些实施例中,请参阅图2e,S222包括:
S2221、调节目标阳极电压和/或目标阴极电压,使得目标阳极电压与目标阴极电压两者的压差为目标驱动电压;
S2222、根据目标驱动电压,点亮位于显示区内的全部像素单元。
在本实施例中,显示面板不仅可以分别调节目标阳极电压ELVDD或目标阴极电压ELVSS,而且还可以同时调节目标阳极电压ELVDD与目标阴极电压ELVSS,只要使得调节后的目标阳极电压与目标阴极电压两者的压差满足预设条件即可,亦即,调节后的目标阳极电压与目标阴极电压两者的压差为目标驱动电压即可。
在一些实施例中,除了可以根据显示区产生目标驱动电压,显示面 板还可以根据非显示区中各行像素单元在屏幕的位置产生目标驱动电压,例如,首先,显示面板从显示区中选择一行像素单元作为目标行像素单元,目标行像素单元最靠近非显示区中的像素单元。例如,由于第100行像素单元最靠近非显示区中第101行像素单元,亦即,第100行像素单元与非显示区中第101行像素单元之间的距离最近,比第102行像素单元至第150行像素单元任意一个像素单元之间的距离最近,因此,显示面板选择第100行像素单元作为目标行像素单元。
其次,显示面板产生用于点亮位于目标行像素单元的驱动电压作为目标驱动电压。
在一些实施例中,为了尽量节省功耗,并且还能够保证正常点亮显示区中全部像素单元,在一些实施例中,目标驱动电压为使得点亮位于显示区远端对应行的像素单元的驱动电路进入饱和状态下的饱和电压。例如,当V gs为预设电压时,其可以选择图1c所示中第二薄膜晶体管T2进入饱和状态下的饱和电压作为目标驱动电压。
在一些实施例中,产生目标驱动电压的方式多种多样,例如,请参阅图2f,S221包括:
S2211、确定与目标驱动电压对应的脉冲数量;
S2212、产生对应脉冲数量的脉冲作为目标驱动电压。
在本实施例中,如前所述,屏幕一共有150行像素单元,第1行至第100行像素单元用于被点亮以显示画面,第101行至第150行像素单元用于被熄灭以显示黑画面或黑屏。
显示面板调节ELVDD和/或目标阴极电压ELVSS,使得第100行像素单元对应的ELVDD与ELVSS两者的压差刚好可以使得第100行像素单元的驱动电路进入饱和状态,并记录此时ELVDD与ELVSS两者的压差为V 100
根据脉冲数量与压差V 100之间的对应关系,显示面板得到:当需要输出目标驱动电压V 100,内部需要输出对应脉冲数量个的脉冲,例如,若需要输出目标驱动电压V 100=3伏时,则需要输出100个脉冲,于是,显示面板将100作为数据写入寄存器内。显示面板持续产生100个脉冲 以点亮显示区。
需要说明的是,在上述各个实施例中,上述各步骤之间并不必然存在一定的先后顺序,本领域普通技术人员,根据本申请实施例的描述可以理解,不同实施例中,上述各步骤可以有不同的执行顺序,亦即,可以并行执行,亦可以交换执行等等。
作为本申请实施例的另一方面,本申请实施例提供一种屏幕驱动装置。请参阅图3a,屏幕驱动装置300包括:确定模块31与选择模块32。
确定模块31用于确定屏幕的显示区或非显示区,其中,屏幕包括若干像素单元,不同的像素单元对应不同的驱动电压;
选择模块32用于选择目标驱动电压点亮位于显示区内的全部像素单元。
因此,其能够灵活配置不同驱动电压以点亮不同范围的显示区,从而为节省屏幕功耗提供了可能。
在一些实施例中,目标驱动电压为点亮所述显示区中全部像素单元的最小驱动电压。
在一些实施例中,屏幕包括依序排列的若干行所述像素单元。请参阅图3b,选择模块32包括:产生单元321与点亮单元322。
产生单元321用于根据显示区或非显示区中各行像素单元在屏幕的位置,产生目标驱动电压。
点亮单元322用于根据目标驱动电压,点亮位于显示区内的全部像素单元。
在一些实施例中,显示时,按照第一方向自近端向远端依序点亮各行所述像素单元。产生单元321具体用于:选择用于点亮位于显示区远端对应行的像素单元的驱动电压作为目标驱动电压。
在一些实施例中,每行像素单元皆对应至少一个驱动电压。产生单元321还具体用于:确定位于显示区远端的像素单元所在的行数;选择与行数对应的驱动电压作为目标驱动电压。
在一些实施例中,目标驱动电压为使得点亮位于显示区远端对应行的像素单元的驱动电路进入饱和状态下的饱和电压。
在一些实施例中,折叠所述屏幕时,位于显示区远端对应行的像素单元所在区域为显示区与非显示区之间的过渡区域。
在一些实施例中,产生单元321具体用于:确定与目标驱动电压对应的脉冲数量;产生对应脉冲数量的脉冲作为目标驱动电压。
在一些实施例中,目标驱动电压为目标阳极电压与目标阴极电压两者的压差,其中,目标阳极电压与目标阴极电压皆用于驱动像素单元发光。
在一些实施例中,点亮单元322具体用于:调节阳极电压和/或阴极电压,使得阳极电压与阴极电压两者的压差为目标驱动电压;根据目标驱动电压,点亮位于显示区内的全部像素单元。
在一些实施例中,产生单元321具体用于:从显示区中选择一行像素单元作为目标行像素单元,目标行像素单元最靠近非显示区中的像素单元;产生用于点亮位于目标行像素单元的驱动电压作为目标驱动电压。
在一些实施例中,确定模块31具体用于:在屏幕中输入任何形状轨迹的触控操作将所述屏幕划分为显示区或非显示区。
在一些实施例中,确定模块31具体用于:基于屏幕的折叠将所述屏幕划分为显示区或非显示区。
需要说明的是,上述屏幕驱动装置可执行本申请实施例所提供的屏幕驱动方法,具备执行方法相应的功能模块和有益效果。未在屏幕驱动装置实施例中详尽描述的技术细节,可参见本申请实施例所提供的屏幕驱动方法。
作为本申请实施例的另一方面,本申请实施例提供一种控制器。图4是本申请实施例提供一种控制器的电路原理框图。如图4所示,该控制器400包括一个或多个处理器41以及存储器42。其中,图4中以一个处理器41为例。
处理器41和存储器42可以通过总线或者其他方式连接,图4中以通过总线连接为例。
存储器42作为一种非易失性计算机可读存储介质,可用于存储非易失性软件程序、非易失性计算机可执行程序以及模块,如本申请实施例中的屏幕驱动方法对应的程序指令/模块。处理器41通过运行存储在存储器42中的非易失性软件程序、指令以及模块,从而执行屏幕驱动装置的各种功能应用以及数据处理,即实现上述方法实施例屏幕驱动方法以及上述装置实施例的各个模块的功能。
存储器42可以包括高速随机存取存储器,还可以包括非易失性存储器,例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。在一些实施例中,存储器42可选包括相对于处理器41远程设置的存储器,这些远程存储器可以通过网络连接至处理器41。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
所述程序指令/模块存储在所述存储器42中,当被所述一个或者多个处理器41执行时,执行上述任意方法实施例中的屏幕驱动方法。
本申请实施例的控制器400以多种形式存在,在执行以上描述的各个步骤。
控制器400能够灵活配置不同驱动电压以点亮不同范围的显示区,从而为节省屏幕功耗提供了可能。
本申请实施例还提供了一种非易失性计算机存储介质,所述计算机存储介质存储有计算机可执行指令,该计算机可执行指令被一个或多个处理器执行,例如图4中的一个处理器41,可使得上述一个或多个处理器可执行上述任意方法实施例中的屏幕驱动方法。
其能够灵活配置不同驱动电压以点亮不同范围的显示区,从而为节省屏幕功耗提供了可能。
本申请实施例还提供了一种计算机程序产品,所述计算机程序产品包括存储在非易失性计算机可读存储介质上的计算机程序,所述计算机程序包括程序指令,当所述程序指令被控制器执行时,使所述控制器执行上述的屏幕驱动方法。
其能够灵活配置不同驱动电压以点亮不同范围的显示区,从而为节 省屏幕功耗提供了可能。
以上所描述的装置或设备实施例仅仅是示意性的,其中所述作为分离部件说明的单元模块可以是或者也可以不是物理上分开的,作为模块单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络模块单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到各实施方式可借助软件加通用硬件平台的方式来实现,当然也可以通过硬件。基于这样的理解,上述技术方案本质上或者说对相关技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品可以存储在计算机可读存储介质中,如ROM/RAM、磁碟、光盘等,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行各个实施例或者实施例的某些部分所述的方法。
本申请实施例提供一种显示装置。显示装置可以选择上述各个实施例所阐述的显示面板。
其能够灵活配置不同驱动电压以点亮不同范围的显示区,从而为节省屏幕功耗提供了可能。
最后应说明的是:以上实施例仅用以说明本申请的技术方案,而非对其限制;在本申请的思路下,以上实施例或者不同实施例中的技术特征之间也可以进行组合,步骤可以以任意顺序实现,并存在如上所述的本申请的不同方面的许多其它变化,为了简明,它们没有在细节中提供;尽管参照前述实施例对本申请进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (29)

  1. 一种屏幕驱动方法,其特征在于,包括:
    确定所述屏幕的显示区或非显示区,其中,所述屏幕包括若干像素单元,不同的像素单元对应不同的驱动电压;
    选择目标驱动电压点亮位于所述显示区内的全部像素单元。
  2. 根据权利要求1所述的屏幕驱动方法,其特征在于,所述目标驱动电压为点亮所述显示区中全部像素单元的最小驱动电压。
  3. 根据权利要求1或2所述的屏幕驱动方法,其特征在于,所述屏幕包括依序排列的若干行所述像素单元;
    所述选择目标驱动电压点亮位于所述显示区内的全部像素单元,包括:
    根据所述显示区或所述非显示区中各行像素单元在所述屏幕的位置,产生目标驱动电压;
    根据所述目标驱动电压,点亮位于所述显示区内的全部像素单元。
  4. 根据权利要求3所述的屏幕驱动方法,其特征在于,显示时,按照第一方向自近端向远端依序点亮各行所述像素单元;
    所述根据所述显示区中各行像素单元在所述屏幕的位置,确定目标驱动电压,包括:
    选择用于点亮位于所述显示区远端对应行的像素单元的驱动电压作为目标驱动电压。
  5. 根据权利要求4所述的屏幕驱动方法,其特征在于,每行所述像素单元皆对应至少一个驱动电压;
    所述选择用于点亮位于所述显示区远端对应行的像素单元的驱动电压作为目标驱动电压,包括:
    确定位于所述显示区远端的像素单元所在的行数;
    选择与所述行数对应的驱动电压作为目标驱动电压。
  6. 根据权利要求4所述的屏幕驱动方法,其特征在于,所述目标驱动电压为使得点亮位于所述显示区远端对应行的像素单元的驱动电 路进入饱和状态下的饱和电压。
  7. 根据权利要求4所述的屏幕驱动方法,其特征在于,折叠所述屏幕时,位于所述显示区远端对应行的像素单元所在区域为所述显示区与所述非显示区之间的过渡区域。
  8. 根据权利要求3所述的屏幕驱动方法,其特征在于,所述产生目标驱动电压,包括:
    确定与所述目标驱动电压对应的脉冲数量;
    产生对应所述脉冲数量的脉冲作为目标驱动电压。
  9. 根据权利要求3所述的屏幕驱动方法,其特征在于,所述目标驱动电压为目标阳极电压与目标阴极电压两者的压差,其中,所述目标阳极电压与所述目标阴极电压皆用于驱动所述像素单元发光。
  10. 根据权利要求9所述的屏幕驱动方法,其特征在于,所述根据所述目标驱动电压,点亮位于所述显示区内的全部像素单元,包括:
    调节所述目标阳极电压和/或所述目标阴极电压,使得所述目标阳极电压与所述目标阴极电压两者的压差为所述目标驱动电压;
    根据所述目标驱动电压,点亮位于所述显示区内的全部像素单元。
  11. 根据权利要求3所述的屏幕驱动方法,其特征在于,所述根据所述非显示区中各行像素单元在所述屏幕的位置,产生目标驱动电压,包括:
    从所述显示区中选择一行像素单元作为目标行像素单元,所述目标行像素单元最靠近所述非显示区中的像素单元;
    产生用于点亮位于所述目标行像素单元的驱动电压作为目标驱动电压。
  12. 根据权利要求1所述的屏幕驱动方法,其特征在于,所述确定所述屏幕的显示区或非显示区包括:在屏幕中输入任何形状轨迹的触控操作将所述屏幕划分为显示区或非显示区。
  13. 根据权利要求1所述的屏幕驱动方法,其特征在于,所述确定所述屏幕的显示区或非显示区包括:基于屏幕的折叠将所述屏幕划分为显示区或非显示区。
  14. 一种屏幕驱动装置,其特征在于,包括:
    确定模块,用于确定所述屏幕的显示区或非显示区,其中,所述屏幕包括若干像素单元,不同的像素单元对应不同的驱动电压;
    选择模块,用于选择目标驱动电压点亮位于所述显示区内的全部像素单元。
  15. 根据权利要求14所述的屏幕驱动装置,其特征在于,所述目标驱动电压为点亮所述显示区中全部像素单元的最小驱动电压。
  16. 根据权利要求14所述的屏幕驱动装置,其特征在于,所述屏幕包括依序排列的若干行所述像素单元;
    所述选择模块包括:
    产生单元,用于根据所述显示区或所述非显示区中各行像素单元在所述屏幕的位置,产生目标驱动电压;
    点亮单元,用于根据所述目标驱动电压,点亮位于所述显示区内的全部像素单元。
  17. 根据权利要求16所述的屏幕驱动装置,其特征在于,显示时,按照第一方向自近端向远端依序点亮各行所述像素单元;
    所述产生单元具体用于:选择用于点亮位于所述显示区远端对应行的像素单元的驱动电压作为目标驱动电压。
  18. 根据权利要求17所述的屏幕驱动装置,其特征在于,每行所述像素单元皆对应至少一个驱动电压;
    所述产生单元还具体用于:
    确定位于所述显示区远端的像素单元所在的行数;
    选择与所述行数对应的驱动电压作为目标驱动电压。
  19. 根据权利要求17所述的屏幕驱动装置,其特征在于,所述目标驱动电压为使得点亮位于所述显示区远端对应行的像素单元的驱动电路进入饱和状态下的饱和电压。
  20. 根据权利要求17所述的屏幕驱动装置,其特征在于,折叠所述屏幕时,位于所述显示区远端对应行的像素单元所在区域为所述显示区与所述非显示区之间的过渡区域。
  21. 根据权利要求16所述的屏幕驱动装置,其特征在于,所述产生单元具体用于:
    确定与所述目标驱动电压对应的脉冲数量;
    产生对应所述脉冲数量的脉冲作为目标驱动电压。
  22. 根据权利要求16所述的屏幕驱动装置,其特征在于,所述目标驱动电压为目标阳极电压与目标阴极电压两者的压差,其中,所述目标阳极电压与所述目标阴极电压皆用于驱动所述像素单元发光。
  23. 根据权利要求22所述的屏幕驱动装置,其特征在于,所述点亮单元具体用于:
    调节所述阳极电压和/或所述阴极电压,使得所述阳极电压与所述阴极电压两者的压差为所述目标驱动电压;
    根据所述目标驱动电压,点亮位于所述显示区内的全部像素单元。
  24. 根据权利要求16所述的屏幕驱动装置,其特征在于,所述产生单元具体用于:
    从所述显示区中选择一行像素单元作为目标行像素单元,所述目标行像素单元最靠近所述非显示区中的像素单元;
    产生用于点亮位于所述目标行像素单元的驱动电压作为目标驱动电压。
  25. 根据权利要求14所述的屏幕驱动装置,其特征在于,所述确定所述屏幕的显示区或非显示区包括:在屏幕中输入任何形状轨迹的触控操作将所述屏幕划分为显示区或非显示区。
  26. 根据权利要求14所述的屏幕驱动装置,其特征在于,所述确定所述屏幕的显示区或非显示区包括:基于屏幕的折叠将所述屏幕划分为显示区或非显示区。
  27. 一种控制器,其特征在于,包括:
    至少一个处理器;以及,
    与所述至少一个处理器通信连接的存储器;其中,
    所述存储器存储有可被所述至少一个处理器执行的指令,所述指令被所述至少一个处理器执行,以使所述至少一个处理器能够执行权利要 求1至13任一项所述的屏幕驱动方法。
  28. 一种显示面板,其特征在于,包括:
    屏幕,包括依序排列的若干行像素单元及驱动电路,每个所述驱动电路皆与对应的一个所述像素单元连接;以及
    如权利要求27所述的控制器,与每个所述驱动电路连接。
  29. 一种显示装置,其特征在于,包括:如权利要求28所述的显示面板。
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