WO2022222637A1 - 显示模组及其控制方法和电子设备 - Google Patents

显示模组及其控制方法和电子设备 Download PDF

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Publication number
WO2022222637A1
WO2022222637A1 PCT/CN2022/080130 CN2022080130W WO2022222637A1 WO 2022222637 A1 WO2022222637 A1 WO 2022222637A1 CN 2022080130 W CN2022080130 W CN 2022080130W WO 2022222637 A1 WO2022222637 A1 WO 2022222637A1
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WIPO (PCT)
Prior art keywords
display unit
display
signal
unit
gate
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PCT/CN2022/080130
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English (en)
French (fr)
Inventor
张健民
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Oppo广东移动通信有限公司
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Publication of WO2022222637A1 publication Critical patent/WO2022222637A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/37—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements
    • G09F9/372—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements the positions of the elements being controlled by the application of an electric field
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays

Definitions

  • the embodiments of the present application relate to the field of display technology, and in particular, to a display module, a control method thereof, and an electronic device.
  • AMOLED Active-matrix organic light emitting diode
  • AMOLED displays are unstable at low brightness, and Pulse Width Modulation (PWM) dimming is usually used to achieve brightness control. Too low frequency can easily lead to visual fatigue of the eyes.
  • PWM Pulse Width Modulation
  • a display module According to various embodiments of the present application, a display module, a control method thereof, and an electronic device are provided.
  • a display module comprising:
  • a flexible display screen comprising a first display unit and a second display unit connected to the first display unit;
  • the first display unit is an electronic ink display unit, and the second display unit is an active light-emitting display unit;
  • the driving mechanism is arranged on the casing assembly and used to drive the first display unit and the second display unit to be hidden in the casing assembly or exposed outside the casing assembly.
  • Embodiments of the present application also provide a control method for a display module, the control method comprising:
  • the driving mechanism is arranged in the casing assembly and used to drive the first display unit and the second display unit to be hidden in the inside the shell assembly or exposed outside the shell assembly;
  • the driving mechanism is driven according to the first control signal to drive the first display unit to be hidden in the casing assembly, and drives the second display unit to be exposed outside the casing assembly, and driven according to the second control signal
  • the driving mechanism drives the second display unit to be hidden in the casing assembly, and drives the first display unit to be exposed outside the casing assembly.
  • Embodiments of the present application further provide an electronic device, including the aforementioned display module.
  • FIG. 1 is a schematic structural diagram of a display module in a first state according to an embodiment
  • FIG. 2 is a schematic structural diagram of a display module in a second state according to an embodiment
  • FIG. 3 is a schematic structural diagram of a flexible display screen of a display module according to an embodiment
  • FIG. 4 is a schematic structural diagram of a flexible display screen of a display module according to an embodiment
  • FIG. 5 is a schematic structural diagram of a flexible display screen of a display module according to another embodiment
  • FIG. 6 is a schematic structural diagram of a flexible display screen of a display module according to another embodiment
  • FIG. 7 is a schematic diagram of a layered structure of a flexible display screen in a display module according to an embodiment
  • FIG. 8 is a driving circuit diagram of a driving module according to an embodiment
  • FIG. 9 is a circuit diagram of a first pixel circuit and a second pixel circuit according to an embodiment
  • FIG. 10 is a driving circuit diagram of a driving module of another embodiment
  • FIG. 11 is a flowchart of a control method of a display module according to an embodiment
  • FIG. 12 is a flowchart of a control method of a display module according to another embodiment.
  • a display module includes: a casing assembly 10 , a flexible display screen 20 , a driving mechanism 30 and a control module 40 .
  • the casing assembly 10 is provided with a cavity 101 for accommodating the flexible display screen 20 , the driving mechanism 30 and the control module 40 .
  • the housing assembly 10 is further provided with a display window 102 , and the display window 102 communicates with the cavity 101 .
  • the display surface of the flexible display screen 20 is disposed toward the display window 102 .
  • the flexible display screen 20 includes a first display unit 201 and a second display unit 202 connected to the first display unit 201 .
  • the structures of the first display unit 201 and the second display unit 202 are different. Therefore, the first display unit 201 and the second display unit 202 have different display qualities of light-emitting power consumption. Specifically, the light-emitting power consumption of the first display unit 201 can be made smaller than the light-emitting power consumption of the second display unit 202, and the display quality of the second display unit 202 can be made higher than that of the first display unit 201, so that the display mode is improved. In different operating states, the group can achieve better display quality with lower overall power consumption.
  • the first display unit 201 may include a plurality of passive light-emitting pixels, such as e-ink pixels. Therefore, the first display unit 201 may be an e-ink display unit or an e-ink screen.
  • the second display unit 202 may include a plurality of active light-emitting pixels, for example, organic light-emitting diodes (Organic Light-Emitting Diodes, OLED), microLEDs or quantum dot light-emitting diodes (Quantum Dot Light Emitting Diodes, QLED) with different colors, etc., therefore , the second display unit 202 may be an AMOLED display unit.
  • the driving mechanism 30 is disposed in the casing assembly 10 and used to drive the first display unit 201 and the second display unit 202 to be hidden in the casing assembly 10 or exposed outside the casing assembly 10 . It can be understood that the driving mechanism 30 can drive the first display unit 201 and the second display unit 202 to move under the control of the control signal, and the movement form can be winding, transmission, telescopic and the like. Exemplarily, the driving mechanism 30 can drive the first display unit 201 to be hidden inside the casing 10 and drive the second display unit 202 to be exposed outside the casing 10, or the driving mechanism 30 can drive the first display unit 201 is exposed outside the casing assembly 10 , and drives the second display unit 202 to be hidden inside the casing assembly 10 .
  • the flexible display screen exposed in the above-mentioned display module includes a first display unit 201 and a second display unit 202 connected to the first display unit 201; wherein, the first display unit 201 is an electronic ink display unit, The second display unit 202 is an active light-emitting display unit.
  • the driving mechanism 30 in the display module can drive the first display unit 201 to be hidden in the casing assembly 10 and drive the second display unit 202 to be exposed outside the casing assembly 10 , so that the second display unit 202 covers the display window 102 .
  • the driving mechanism 30 can also drive the second display unit 202 to be hidden in the casing assembly 10 and drive the first display unit 201 to be exposed outside the casing assembly 10 , so that the first display unit 201 covers the display window 102 .
  • the display module that can be provided by the embodiment of the present application is a dual-screen display module.
  • the e-ink display unit does not need a backlight. It uses ambient light to hit the display screen and then refracts it to the eyes. This method simulates ink and ink.
  • the characteristics of paper that is, it adopts the method of reflecting natural light instead of actively emitting light, so that the brightness of the screen seen by the human eye is consistent with the environment, so that it does not stimulate the cone cells and protects the eyes.
  • it can also ensure that any display unit is exposed outside the casing assembly in any state, so as to meet the needs of users.
  • the overall size and volume of the display module can also be reduced, thereby improving the convenience for users to carry.
  • the driving mechanism 30 can be used to drive the flexible display screen 20 to unfold or roll up the flexible display screen 20 .
  • the driving mechanism 30 can drive the first display unit 201 and the second display unit 202 to switch between the winding state and the unfolding state.
  • the driving mechanism 30 in the winding state, at least part of the flexible display screen 20 is wound around the driving mechanism 30 . That is, in the winding state, the driving mechanism 30 can drive the first display unit 201 or the second display unit 202 to be wound around the driving mechanism 30 .
  • the flexible display screen 20 wound around the driving mechanism 30 is exposed to the outside of the case assembly 10 . That is, in the unfolded state, the flexible display screen 20 wound on the driving mechanism 30 in the rewinding state can be exposed to the outside of the case assembly 10 .
  • the unfolded state includes a first state and a second state, and in different states, the rolled and unfolded states of the first display unit 201 and the second display unit 202 are also different.
  • the first display unit 201 is exposed outside the casing assembly 10, and all the second display units 202 are hidden in the casing assembly 10, so that the second display unit 202 can be completely wound on the driving mechanism 30,
  • the first display unit 201 of the first display unit 201 is exposed outside the casing in an unfolded state to present the complete first display area of the first display unit 201 , and the casing assembly 10 does not block the first display area of the first display unit 201 .
  • the casing assembly 10 will not block the second display area of the second display unit 202 . Therefore, when the display module is in the unfolded state, complete display areas of different display units are presented to meet the user's usage requirements, and seamless switching between the first display unit 201 and the second display unit 202 can also be achieved.
  • the display module When in the first state, the display module can also drive the first display unit 201 to emit light; correspondingly, in the second state, the driving module can also drive the second display unit 202 to emit light correspondingly.
  • the display module can select different display units to emit light according to different operating states of the electronic device, so that the first display unit 201 and the second display unit 202 can realize the corresponding display functions independently of each other. Flexible dual-screen display.
  • the driving mechanism 30 includes a first shaft 310 , a second shaft 320 and a driving assembly 330 .
  • the first shaft 310 is connected to one end of the first display unit 201 away from the second display unit 202 .
  • the second shaft 320 is connected to one end of the second display unit 202 away from the first display unit 201 .
  • the first display unit 201 may include a first display area and a second non-display area
  • the second display unit 202 may include a second display area and a second non-display area.
  • the first non-display area at one end away from the second display unit 202 is provided with a first connecting portion for fixedly connecting with the first shaft 310 .
  • a second connecting portion is provided in the second non-display area at one end away from the first display unit 201 for fixedly connecting with the second shaft 320 .
  • the driving assembly 330 is connected with the first shaft 310 and the second shaft 320 respectively.
  • the drive assembly 330 can be understood as a power assembly for outputting power to at least one of the first shaft 310 and the second shaft 320, so that the first shaft 310 and the second shaft 320 are rotated, thereby driving the first display unit 201 and the second shaft 320.
  • the second display unit 202 moves.
  • the driving assembly 330 can be used to drive the first shaft 310 according to the first control signal, so that at least part of the first display unit 201 is wound around the first shaft 310, and drives the second display unit 202 to switch from the winding state to the unfolding state, It is also used to drive the second shaft 320 according to the second control signal so that at least part of the second display unit 202 is wound around the second shaft 320, and drive the first display unit 201 to switch from the winding state to the unfolding state.
  • first axis 310 and the second axis 320 are arranged in parallel, and during the switching between the first display unit 201 and the second display unit 202 between the rolled state and the unrolled state, the first axis 310 and the second axis 320 The first display unit 201 and the second display unit 202 are rotated synchronously and in the same direction to realize switching between the first state and the second state.
  • the driving assembly 330 may include a power part, and the power part may be connected with the first shaft 310 and the second shaft 320, respectively.
  • the power unit can drive the first shaft 310 to rotate in the first direction according to the first control signal, and drive the second shaft 320 and the first shaft 310 to rotate synchronously and in the same direction through the flexible display screen 20, so as to make the flexible display The screen 20 is in the first state.
  • the power unit can also drive the second shaft 320 to rotate in the second direction according to the second control signal, and drive the first shaft 310 and the second shaft 320 to rotate synchronously and in the same direction through the flexible display screen 20, so that the flexible display screen 20 is in the same direction. second state.
  • the drive assembly 330 may further include two power parts, specifically a first power part 331 and a second power part 332 , wherein the first power part 331 is connected to the first shaft 310 , the second power part 332 is connected with the second shaft 320 .
  • the first power part 331 and the second power part 332 can respectively drive the first shaft 310 and the second shaft 320 to rotate synchronously in the first direction according to the first control signal, so that the flexible display screen 20 is in the first state; correspondingly, the first The power part 331 and the second power part 332 can respectively drive the first shaft 310 and the second shaft 320 to rotate synchronously in the second direction according to the second control signal, so that the flexible display screen 20 is in the second state.
  • the switching efficiency of the flexible display screen 20 between the first state and the second state can be improved, and at the same time, the stress generated in a single direction can be avoided.
  • the damage to the optical adhesive layer of the flexible display screen 20 prolongs the service life of the flexible display screen 20 .
  • one of the first shaft 310 and the second shaft 320 in the drive assembly 330 can be replaced with a support portion, wherein the support portion is fixedly connected with the housing assembly 10, and the support shaft cannot be moved under the action of an external force.
  • the support portion may be cylindrical, and the flexible display screen 20 may be attached to a part of the outer surface of the support portion to support the flexible display screen 20 .
  • the power part of the driving assembly 330 can be adjusted adaptively to provide a driving force suitable for the driving assembly 330 .
  • the driving mechanism 30 may include a driving member 340 and a transmission belt 350 .
  • the flexible display screen 20 is unfolded and laid on the transmission belt 350 .
  • the driving component 340 can drive the transmission belt 350 to rotate, and then can drive the flexible display screen 20 to rotate, that is, the flexible display screen 20 is in a stationary state relative to the driving mechanism 30 .
  • the driving mechanism 30 can drive the first display unit 201 and the second display unit 202 to switch between the first transmission state and the second transmission state.
  • the first display unit 201 is exposed outside the casing assembly 10
  • all the second display units 202 are hidden inside the casing assembly 10 .
  • the flexible display screen 20 accommodated in the case assembly 10 in the first transmission state can be exposed outside the case assembly 10 . That is, in the second transmission state, all the first display units 201 are hidden in the casing assembly 10 , and the second display units 202 are exposed outside the casing assembly 10 .
  • the flexible display screen 20 is driven by the driving mechanism 30 to switch between the first transmission state and the second transmission state, which can ensure that in any state Any display unit is exposed outside the casing assembly to meet the user's use requirements, and at the same time, the overall size and volume of the display module can be reduced, thereby improving the convenience of the user to carry.
  • the display module further includes a control module 40 .
  • the control module 40 is configured to send the first control signal and the second control signal for controlling the operation of the driving mechanism 30 to the driving mechanism 30 .
  • the first control signal is used to drive the driving mechanism 30 to drive the first display unit 201 to be hidden in the casing assembly 10, and to drive the second display unit 202 to be exposed outside the casing assembly 10, and the second control signal is used to drive the driving mechanism 30 to drive
  • the second display unit 202 is hidden in the casing assembly 10 and drives the first display unit 201 to be exposed outside the casing assembly 10 .
  • the driving mechanism 30 can drive the first display unit 201 to be hidden in the casing assembly 10 and drive the second display unit 202 to be exposed outside the casing assembly 10 , so that the second display unit 202 The display window 102 is overlaid.
  • the driving mechanism 30 can drive the second display unit 202 to be hidden in the casing assembly 10 and drive the first display unit 201 to be exposed outside the casing assembly 10, so that the first display unit 201 covers the display window 102.
  • the display module further includes a sensing module 50 connected to the first shaft 310 .
  • the sensing module 50 may include an angle sensor, an angular velocity sensor, etc., and may be used to detect the rotation angle of the first shaft 310. Wherein, the rotation angle may correspond to the length dimension of the flexible display screen 20 wound by the first shaft 310 or the second shaft 320 in the winding direction.
  • the sensing module 50 can also be connected with the control module 40 for outputting the rotation angle to the control module 40 .
  • the control module 40 compares the received rotation angle with the preset angle, and when the rotation angle is the preset angle, can output a stop signal to control the first shaft 310 and the second shaft 320 to stop rotating.
  • the preset angle may be determined according to information such as the thickness of the flexible display screen 20 , the lengths of the first display unit 201 and the second display unit 202 in the unfolding direction, and the diameter of the first axis 310 . It should be noted that, in the embodiments of the present application, the size of the preset angle is not limited.
  • the flexible display screen 20 is in the first state or the second state, and the seamless switching between the first display unit 201 and the second display unit 202 can be realized.
  • the display effects of the first display unit 201 and the second display unit 202 can also be improved.
  • the flexible display screen 20 further includes a display frame 203 disposed between the first display unit 201 and the second display unit 202 .
  • the sensing module 50 can be fixed on the housing assembly 10 .
  • the sensing module 50 may be a proximity sensor, and may be used to detect the position information of the display frame 203 .
  • the sensing module 50 can also be connected with the control module 40 for outputting position information to the control module 40 .
  • the control module 40 compares the received position information with the preset position, and when the position information reaches the preset position, can output a stop signal to control the first shaft 310 and the second shaft 320 to stop rotating.
  • the preset position may be the window wall of the display window 102 close to the first axis 310 or close to the second axis 320 .
  • the first shaft 310 and the second shaft 320 are controlled to stop rotating, so that the first shaft 310 or the second shaft 320 just corresponds to the display frame 203 and is wound on the driving mechanism 30
  • the first display unit 201 or the second display unit 202 will not be exposed to the casing, and the seamless switching between the first display unit 201 and the second display unit 202 can be realized.
  • the display effect of the second display unit 202 is the display effect of the second display unit 202 .
  • the first display unit 201 is an electronic ink display unit
  • the second display unit 202 is an AMOLED display unit for illustration.
  • the electronic ink display unit includes a plurality of electronic ink pixels arranged in an array
  • the AMOLED display unit It includes a plurality of organic light emitting diodes (OLEDs) arranged in an array.
  • the first display unit 201 includes a first electrode layer 2011 , a fluid layer 2012 and a second electrode layer 2013 which are stacked in sequence.
  • the first electrode layers 2011 of each e-ink pixel are isolated from each other, and the second electrode layers 2013 are connected to each other and connected to a predetermined level.
  • the fluid layer 2012 includes light-shielding ink particles and light-reflecting ink particles.
  • the light-shielding ink particles are black ink particles, and the light-reflecting ink particles are white ink particles.
  • the light-shielding ink particles can be black charged particles
  • the reflective particles can be white charged particles
  • the black charged particles and the white charged particles carry different charges
  • the black charged particles and the white charged particles are respectively encapsulated in a plurality of transparent microcapsules middle.
  • the black ink particles are negatively charged
  • the white ink particles are positively charged
  • the fluid layer 2012 is sandwiched between the third electrode layer and the fourth electrode layer, the two electrode layers are divided into a plurality of regions, each region is equivalent One pixel in the first display unit 201 .
  • the movement of the black charged particles and the white charged particles can be controlled by an external electric field, and finally a stable arrangement is formed, so that the e-ink pixels have different reflection properties.
  • the voltage on the pixel electrode layer controls the display brightness of the electronic ink pixel.
  • the second display unit 202 may include a third electrode layer 2021, a light emitting layer 2022 and a fourth electrode layer 2023 that are stacked in sequence. Meanwhile, the second electrode layer 2013 of the first display unit 201 and the fourth electrode layer 2023 of the second display unit 202 also share a common electrode.
  • the third electrode layer 2021 may be an anode layer
  • the fourth electrode layer 2023 may be a cathode layer.
  • the material of the anode layer may be at least one of ITO, FTO, AZO, IZO, graphene, carbon nanotube, metal element, metal element nanowire, metal alloy nanowire, and metal heterojunction nanowire.
  • the material of the cathode layer may be, for example, aluminum (Al), aluminum-magnesium alloy (Al-Mg), or magnesium-silver alloy (Mg-Ag).
  • the light emitting layer 2022 can be used to emit red, green or blue light.
  • the design of the common electrode between the first display unit 201 and the second display unit 202 can minimize the manufacturing process of the display module and reduce the cost.
  • the flexible display screen 20 further includes a flexible substrate 210 , and the first display unit 201 and the second display unit 202 are both disposed on the same side of the flexible substrate 210 .
  • the flexible substrate 210 may include a substrate layer 211 and a buffer layer 212 that are stacked in sequence.
  • the first display unit 201 and the second display unit 202 further include a gate insulating layer 220, an interlayer insulating layer 230, a planarization layer 240 and a pixel definition layer 250 disposed on the buffer layer 212.
  • the pixels of the first display unit 201 and the second display unit 202 are formed on the pixel definition layer 250 .
  • a polarizer layer 260 and a cover plate 270 are also formed on the pixel definition layer.
  • a first pixel circuit 622 of the first display unit 201 and a second pixel circuit 623 of the second display unit 202 are formed in the gate insulating layer 220 , the interlayer insulating layer 230 and the planarization layer 240 .
  • the first pixel circuit 622 includes a gate electrode 6221 , a source electrode 6222 , a drain electrode 6223 , a source electrode contact structure 6224 and a drain electrode contact structure 6225 , wherein the second electrode layer 2013 and the drain electrode layer in the first display unit 201 They are electrically connected, so as to jointly control each pixel in the first display unit 201 to emit light.
  • the second pixel circuit 623 may include a gate electrode 6231, a source electrode 6232, a drain electrode 6233, a source electrode contact structure 6234 and a drain electrode contact structure 6235, and the fourth electrode layer 2023 in the second display unit 202 is in electrical communication with the drain electrode, Therefore, each pixel in the second display unit 202 is jointly controlled to emit light.
  • the flexible display screen 20 adopts a reasonable display stack design, and the first display unit 201 shares the layered structure of the second display unit 202 to the greatest extent, for example, the flexible substrate 210, the gate insulating layer 220 , the interlayer insulating layer 230 , the planarization layer 240 , the fourth electrode layer 2023 , the polarizer layer 260 and the cover plate 270 , which can reduce the production cost.
  • the display module further includes a driving module, wherein the driving module can drive the second display unit 202 to emit light when the second display unit 202 is exposed to the outside of the casing assembly 10 , and drive the second display unit 202 to emit light when the second display unit 202 is exposed outside the casing assembly 10 .
  • the first display unit 201 is driven to emit light, thereby realizing flexible dual-screen display.
  • seamless display switching between the conventional flexible AMOLED display unit and the electronic ink display unit can be realized by controlling the first axis 310 and the second axis 320 according to the user's usage scenario, which can reduce power consumption and also take care of protection.
  • the driving module 60 may include a control unit 610 , a first gate driving circuit and a second gate driving circuit.
  • the control unit 610 may be a display driver chip (Display Driver IC, DDIC).
  • the control unit 610 is configured with a first excitation terminal for outputting the first excitation signal GSTV1 and a second excitation terminal for outputting the second excitation signal GSTV2.
  • the first excitation signal GSTV1 may be the initial excitation signal of the row control signal of the first display unit 201
  • the second excitation signal GSTV2 may be the initial excitation signal of the row control signal of the second display unit 202 .
  • the gate input terminal of the first gate driving circuit is connected to the first excitation terminal, and the gate output terminal of the first gate driving circuit is connected to the first display unit 201 .
  • the first gate driving circuit may include a first gate scanning driving unit 621 and a plurality of first pixel circuits 622, and the first gate scanning driving unit 621 includes a plurality of cascaded first scanning driving shift register units (GOA)621a.
  • the first scan driving shift register unit 621a is used to provide the first pixel circuit 622 with gate scan signals shifted row by row, for example.
  • Each stage of the first scan driving shift register unit 621a includes a first gate input terminal and a first gate output terminal.
  • the first gate input terminal of the first-stage first scan driving shift register unit 621a is connected to the first excitation terminal of the control unit 610 as the gate input terminal of the first gate driving circuit, and the second-stage first scanning driving shift register
  • the first gate input terminals of the bit register unit 621a to the last stage first scan driving shift register unit 621a are connected to the first gate output terminal of the upper stage first shift register circuit.
  • the first gate output terminal of each stage of the first scan driving shift register unit 621 a is also connected to the first pixel circuit 622 for providing the first pixel circuit 622 with a gate scan signal.
  • the first pixel circuit includes: a first transistor T1.
  • the control terminal of the first transistor T1 is connected to the first gate output terminal of the first scan driving shift register unit 621a, the first terminal of the first transistor T1 is connected to the data signal line, and the first transistor T1 is connected to the data signal line.
  • the second end of T1 is connected to the electronic ink pixel, and the first transistor T1 is used to control the on-off of the path between the electronic ink pixel and the data signal line.
  • the gate input terminal of the second gate driving circuit is connected to the second excitation terminal, and the gate output terminal of the second gate driving circuit is connected to the second display unit 202 .
  • the second gate driving circuit may include a second gate scanning driving unit 631 and a plurality of second pixel circuits 632, and each second gate scanning driving unit 631 includes a plurality of cascaded second scanning driving shifters
  • the register unit 632a and the second scan driving shift register unit 632a are used to provide the second pixel circuit 632 with gate scan signals shifted row by row, for example.
  • Each stage of the second scan driving shift register unit 632a includes a second gate input terminal and a second gate output terminal.
  • the second gate input terminal of the first-stage second scan driving shift register unit 632a is used as the gate input terminal of the second gate driving circuit to be connected to the second excitation terminal of the control unit 610, and the second-stage second scan driving shift register
  • the second gate input terminals of the bit register unit 632a to the last stage second scan driving shift register unit 632a are connected to the second gate output terminal of the previous stage second shift register circuit.
  • the second gate output terminal of each stage of the second scan driving shift register unit 632 a is also connected to the second pixel circuit 632 for providing gate scan signals to the second pixel circuit 632 .
  • the second pixel circuit 632 may include a circuit structure such as 7T1C, 7T2C, 8T2C, 6T1C or 4T1C in the art.
  • the second pixel circuit 632 works under the control of the data signal transmitted through the data line and the gate scan signal transmitted through the gate line to drive each active light-emitting pixel of the second display unit 202 to emit light to realize display and other operations.
  • an embodiment of the present application provides a 6T1C second pixel circuit 623 .
  • control unit 610 is configured to output the first excitation signal GSTV1 to the first excitation terminal, so as to turn on or off the first gate output terminal of the first scan driving shift register unit 621a.
  • the control unit 610 is configured to output the second excitation signal GSTV2 to the second excitation terminal to turn on or off the second gate output terminal of the second scan driving shift register unit 632a.
  • the level states of the first excitation signal GSTV1 and the second excitation signal GSTV2 are opposite.
  • the control unit 610 can output a first excitation signal GSTV1 with a first level to the gate input terminal of the first gate driving circuit, and turn on the first excitation signal GSTV1.
  • the first scanning driving shift register unit 621a has a first gate output terminal, so that the first gate output terminal outputs a gate scanning signal, so that the first display unit 201 can display.
  • control unit 610 can Outputting the second excitation signal GSTV2 with the second level to the gate input terminal of the second gate driving circuit, and turning off the second gate output terminal of the second scanning driving shift register unit 632a in the second gate scanning driving unit 631 , so that the second gate output terminal no longer outputs the gate scanning signal, so that the second display unit 202 does not display.
  • the control unit 610 can output the first excitation signal GSTV1 with the second level to the gate input terminal of the first gate driving circuit, and turn off the first excitation signal GSTV1 of the second level.
  • the first scanning driving shift register unit 621a has a first gate output terminal, so that the first gate output terminal no longer outputs a gate scanning signal, so that the first display unit 201 does not display.
  • control unit 610 can output the second excitation signal GSTV2 with the first level to the gate input terminal of the second gate driving circuit, and turn on the second scanning driving shift register unit 632a in the second gate scanning driving unit 631
  • the second gate output terminal of so that the second gate output terminal outputs a gate scan signal, so that the second display unit 202 displays.
  • the first level may be a low-level signal
  • the second level may be a high-level signal.
  • the first level may be a high-level signal
  • the second level may be a low-level signal
  • the level states of the first excitation signal GSTV1 and the second excitation signal GSTV2 are not further limited.
  • the control unit 610 can independently control the input to the first display unit 201 and the second display unit 202 according to the display requirements or the unfolded state of the first display unit 201 and the second display unit 202.
  • the excitation signals of the excitation terminal and the second excitation terminal can independently control the display of the first display unit 201 and the second display unit 202 to realize the display switching between the first display unit 201 and the second display unit 202, which is implemented in this application.
  • the display control of the first display unit 201 and the second display unit 202 can share the same control unit 610, which can reduce costs, avoid waste of power consumption, and improve the battery life of the display panel.
  • the control unit 610 is further configured with a first enable terminal for outputting the first enable signal ESTV1 and a second enable terminal for outputting the second enable signal ESTV2 Can end.
  • the driving module 60 further includes a first lighting signal driving circuit 623 and a second lighting signal driving circuit 633 .
  • the enable input terminal of the first lighting signal driving circuit 623 is connected to the first enabling terminal, and the output terminal of the first lighting signal driving circuit 623 is connected to the first display unit 201 .
  • the first lighting signal driving circuit 623 includes a plurality of cascaded first lighting control shift register units (EOA) 623a.
  • the first light-emitting signal driving circuit 623 is used to provide, for example, a light-emitting control signal shifted row by row to the electronic ink pixels arranged in an array in the first display unit 201 .
  • each stage of the first light-emitting signal driving circuit 623 includes a first enable input terminal and a first enable output terminal.
  • the first enable input terminal of the first stage first lighting control shift register unit 623a is used as the enable input terminal of the first lighting signal driving circuit 623 to be connected to the first enable terminal of the control unit 610, and the second stage
  • the first enable input terminals of a lighting control shift register unit 623a to the last stage first lighting control shift register unit 623a are connected to the first enable output terminal of the upper stage first lighting control shift register circuit.
  • the first enable output terminal of the first light-emitting control shift register unit 623a of each stage is also connected to the first pixel circuit 622 for providing a light-emitting control signal to the first pixel circuit 622 .
  • the second enable signal ESTV2 can also be understood as a start control excitation signal for driving the PWM circuit of the second pixel circuit.
  • the second enable input terminal of the second lighting signal driving circuit 633 is connected to the second enable terminal, and the enable output terminal of the second lighting signal driving circuit 633 is connected to the second display unit 202 .
  • the second light-emitting signal driving circuit 633 includes a plurality of cascaded second light-emitting control shift register units (EOA) 633a.
  • EOA second light-emitting control shift register units
  • the second light-emitting signal driving circuit 633 is used to provide, for example, a light-emitting control signal shifted row by row to the active light-emitting pixels arranged in an array in the second display unit 202 .
  • each stage of the second light-emitting signal driving circuit 633 includes a second enable input terminal and a second enable output terminal.
  • the second enable input terminal of the first-stage second light-emitting control shift register unit 633a is connected to the first enable terminal of the control unit 610, and the second-stage second light-emitting control shift register unit 633a to the last-stage first enable terminal
  • the second enable input terminal of the second light-emitting control shift register unit 633a is connected to the second enable output terminal of the upper-stage second light-emitting control shift register circuit.
  • the second enable output terminal of each stage of the second light-emitting control shift register unit 633a is also connected to the second pixel circuit 632 for providing a light-emitting control signal to the second pixel circuit 632 .
  • control unit 610 is configured to output a first enable signal ESTV1 to the first enable terminal, so as to turn on or off the first enable output terminal of the first light-emitting control shift register unit 623a.
  • the control unit 610 is configured to output a second enable signal ESTV2 to the second enable terminal, so as to turn on or off the second enable output terminal of the second light-emitting control shift register unit 633a.
  • the control unit 610 may output the first excitation signal GSTV1 with the first level and the first enable signal ESTV1 with the first level to the first excitation terminal, so that the The first gate output terminal of the first scan driving shift register unit 621a outputs the gate scan signal and the first enable output terminal of the first light emission control shift register unit 623a outputs the light emission control signal.
  • the gate scanning signal and the light-emitting control signal can work together on the first pixel circuit 622, and when the first transistor T1 of the first pixel circuit 622 is enabled, the electronic ink pixel can receive the data signal from the data signal line, and according to The data signal enables the movement of the charged particles, thereby displaying the target image.
  • control unit 610 may output the second excitation signal GSTV2 with the second level and the second enable signal ESTV2 with the second level to the second excitation terminal, so that the second scan driving the shift register unit 632a of the second excitation signal
  • the gate scan signal is no longer output from the two-gate output terminal and the lighting control signal is no longer output from the second enable output terminal of the second light-emitting control shift register unit 633a, so that the second display unit 202 does not display.
  • the control unit 610 may output the first excitation signal GSTV1 with the second level and the first enable signal ESTV1 with the second level to the first excitation terminal, so as to enable the first scan driving
  • the first gate output terminal of the shift register unit 621a no longer outputs the gate scan signal and the first enable output terminal of the first light emission control shift register unit 623a no longer outputs the light emission control signal, so that the first display unit 201 does not display .
  • the second pixel circuit 632 includes: a second transistor T2, a third transistor T3, a third transistor T4, a third transistor T5, a third transistor T6, a third transistor T7, a third transistor T8, and a storage capacitor C.
  • the control terminal of the second transistor T2 is connected to the first enable output terminal of the first light-emitting control shift register unit 623a, the first terminal of the second transistor T2 is connected to the data signal line, and the second transistor T2
  • the second end is connected to the active light-emitting pixel of the second display unit 202, such as an OLED sub-pixel, and the second transistor T2 is used to control the connection between the active light-emitting pixel of the second display unit 202 and the data signal line.
  • the control unit 610 may output the second excitation signal GSTV2 with the first level and the second enable signal ESTV2 with the first level to the second excitation terminal, so that the second scan drives the second gate of the shift register unit 632a
  • the output terminal outputs the gate scan signal and the second enable output terminal of the second light-emitting control shift register unit 633a outputs the light-emitting control signal, wherein the gate scan signal and the light-emitting control signal can work together on the second pixel circuit 632 to
  • the second transistor T2 of the second pixel circuit 632 is enabled, and the path between the active light-emitting pixel and the data signal line is turned on, then the active light-emitting pixel can receive the data signal from the data signal line, and according to the data
  • the signal shows the target image.
  • the control unit 610 may further be configured with a first power supply terminal VGH, a second power supply terminal VGL, a first clock terminal GCK and a second clock terminal GCB.
  • the first power supply terminal VGH and the second power supply terminal VGL of the control unit 610 are respectively connected to the first power supply signal line VGH and the second power supply signal line VGL in sequence.
  • the first clock terminal GCK and the second clock terminal GCB of the control unit 610 are respectively connected to the first clock signal line GCK and the second clock signal line GCB in sequence.
  • the first clock signal line GCK and the second clock signal line GCB have the same cycle and opposite states.
  • the pixels of the first display unit 201 and the second display unit 202 in the same column share the same data line (GCK, GCB), and the data line (GCK, GCB) can transmit the data signal output by the control unit 610 to the corresponding
  • the first pixel circuit 622 and the second pixel circuit 632 control the display of the first display unit 201 and the second display unit 202 together with the gate scan signal and the light emission control signal.
  • the number of data signal lines can be effectively reduced, and the number of control units 610 , such as display driver chips, can be reduced, thereby reducing the manufacturing cost of the display module.
  • an embodiment of the present application further provides a control method for a display module.
  • the control method of the display module can be applied to the display module in any of the above embodiments.
  • the control method of the display module includes steps 1102 to 1104 .
  • Step 1102 sending a first control signal and a second control signal for controlling the operation of the driving mechanism to the driving mechanism.
  • the driving mechanism 30 is disposed in the casing assembly 10 and is used to drive the first display unit 201 and the second display unit 202 to enter and exit the casing assembly 10 .
  • the first display unit 201 and the second display unit 202 together constitute the flexible display screen 20 .
  • the structures of the first display unit 201 and the second display unit 202 are different, and therefore, the first display unit 201 and the second display unit 202 have different display qualities of light-emitting power consumption. Specifically, the light-emitting power consumption of the first display unit 201 can be made smaller than the light-emitting power consumption of the second display unit 202, and the display quality of the second display unit 202 can be made higher than that of the first display unit 201, so that the display mode is improved. In different operating states, the group can achieve better display quality with lower overall power consumption.
  • Step 1104 driving the driving mechanism to drive the first display unit to be hidden in the casing assembly according to the first control signal, and to drive the second display unit to be exposed outside the casing assembly, and to drive the second display unit to be exposed outside the casing assembly according to the second control signal.
  • the control signal drives the driving mechanism to drive the second display unit to be hidden in the casing assembly, and drives the first display unit to be exposed outside the casing assembly.
  • the first control signal is used to drive the driving mechanism 30 to drive the first display unit 201 to be hidden in the casing assembly 10, and to drive the second display unit 202 to be exposed outside the casing assembly 10, and the second control signal is used to drive the driving mechanism 30 to drive the first display unit 201 to be exposed outside the casing assembly 10.
  • the two display units 202 are hidden in the casing assembly 10 and drive the first display unit 201 to be exposed outside the casing assembly 10 . That is, under the control of the first control signal, the driving mechanism 30 can drive the first display unit 201 to be hidden in the casing assembly 10, and drive the second display unit 202 to be exposed outside the casing assembly 10.
  • the second display unit 202 is driven to be hidden in the casing assembly 10 , and the first display unit 201 is driven to be exposed outside the casing assembly 10 . It can be understood that when the first display unit 201 is unfolded, the second display unit 202 is accommodated in the case assembly 10 ; when the second display unit 202 is unfolded, the first display unit 201 is accommodated in the case assembly 10 .
  • the above-mentioned control method of the display module can drive the driving mechanism 30 to drive the first display unit 201 and the second display unit 202 into and out of the casing assembly 10, so that when the first display unit 201 is unfolded, the second display unit 202 is accommodated in the casing assembly 10; when the second display unit 202 is unfolded, the first display unit 201 is accommodated in the housing assembly 10, thus, a control method of a dual-screen display module can be provided, which can improve the first display unit 201 and the second display unit 201.
  • Unit 202 switches the efficiency of the control.
  • control method of the display module further includes steps 1202 to 1204 .
  • Step 1202 when the first display unit is exposed outside the casing assembly, drive the first display unit to display, and the second display unit does not display.
  • the display driving chip can output the first excitation signal GSTV1 with the first level to the first gate driving circuit, so that each first scan in the first gate driving circuit drives the output gate scan signal of the shift register unit 621a, And output a first enable signal ESTV1 with a first level to the first lighting signal driving circuit 623, so that each first lighting control shift register unit 623a in the first lighting signal driving circuit 623 outputs a lighting control signal.
  • the gate scan signal and the light emission control signal can work together on the first pixel circuit 622 to enable the first pixel circuit 622, and the first display unit 201 can receive the data signal from the data signal line, and according to the data signal The movement of charged particles is achieved to display the target image.
  • the first display unit 201 is an electronic ink display unit, the first enable signal ESTV1 may not be output. The data signal is illuminated.
  • the display driving chip of the display module can output the second excitation signal GSTV2 with the second level to the second gate driving circuit, so that each second scan in the second gate driving circuit drives the shift register unit 632a.
  • the gate scan signal is no longer output, and the second enable signal ESTV2 having the second level is output to the second lighting signal driving circuit 633, so that each second lighting control shift register in the second lighting signal driving circuit 633
  • the unit 633a no longer outputs the lighting control signal, so that the second display unit 202 does not display.
  • Step 1204 when the second display unit is exposed outside the casing assembly, drive the second display unit to display, and the first display unit does not display.
  • the driving chip may output the first excitation signal GSTV1 having the first level to the second gate driving circuit so that each second scan in the second gate driving circuit drives the output gate scan signal of the shift register unit 632a, and
  • the second enable signal ESTV2 having the first level is output to the second light emission signal driving circuit 633 so that each second light emission control shift register unit 633a in the second light emission signal driving circuit 633 outputs a light emission control signal.
  • the gate scanning signal and the light-emitting control signal can work together on the second pixel circuit 632 to enable the second pixel circuit 632, then the second display unit 202 can receive the data signal from the data signal line, and according to the data signal The movement of charged particles is achieved to display the target image.
  • the display driving chip of the display module can output the first excitation signal GSTV1 with the second level to the first gate driving circuit, so that each first scan in the first gate driving circuit drives the shift register unit 621a.
  • the gate scan signal is no longer output, and the first enable signal ESTV1 having the second level is output to the first lighting signal driving circuit 623, so that each first lighting control shift register in the first lighting signal driving circuit 623
  • the unit 623a no longer outputs the lighting control signal, so that the first display unit 201 does not display.
  • the first display unit 201 may be driven to emit light in the first state; correspondingly, the second display unit 202 may be correspondingly driven to emit light in the second state.
  • the display module can select different display units to emit light according to different operating states of the electronic device, so that the first display unit 201 and the second display unit 202 can realize corresponding display functions independently of each other, that is, flexible dual-screen display is realized.
  • steps in FIG. 11 and FIG. 12 are sequentially shown in the order indicated by the arrows, these steps are not necessarily performed sequentially in the order indicated by the arrows. Unless explicitly stated herein, the execution of these steps is not strictly limited to the order, and these steps may be performed in other orders. Moreover, at least a part of the steps in FIG. 11 and FIG. 12 may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time, but may be executed at different times. These sub-steps or The order of execution of the stages is also not necessarily sequential, but may be performed alternately or alternately with other steps or sub-steps of other steps or at least a portion of a stage.
  • Embodiments of the present application further provide an electronic device, including the display module in any of the above embodiments.
  • the electronic device may be, for example, a display device, a tablet computer, a mobile phone, a smart wearable device, and other devices with a display function.
  • the electronic device provided by the embodiments of the present application can ensure that any display unit is exposed outside the casing assembly in any state, so as to meet the needs of users, and also has a thinner thickness and better flexibility.
  • the specific implementation can be Refer to the corresponding embodiment of the display module.

Abstract

一种显示模组，包括：壳组件(10)；柔性显示屏(20)，包括第一显示单元(201)和第二显示单元(202)，第一显示单元(201)为电子墨水显示单元，第二显示单元(202)为主动式发光的显示单元；驱动机构(30)，设置于壳组件(10)且用于带动第一显示单元(201)和第二显示单元(202)隐藏于壳组件(10)内或外露于壳组件(10)外。

Description

显示模组及其控制方法和电子设备
相关申请的交叉引用
本申请要求于2021年4月22日提交中国专利局、申请号为2021104343937发明名称为“显示模组及其控制方法和电子设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及显示技术领域，特别是涉及一种显示模组及其控制方法和电子设备。
背景技术
这里的陈述仅提供与本申请有关的背景信息，而不必然地构成现有示例性技术。
随着显示技术的发展，不同形式的显示装置的需求已经日益增加，其中主动矩阵有机发光二极体面板(Active-matrix organic light emitting diode，AMOLED)因其具有广色域、自发光、可折叠等被广泛使用。其中，可折叠状态具有展开、弯折以及半弯折等工作状态，既满足了用户对大屏显示带来的视觉震撼感，也同时满足了便携性。
但是，AMOLED显示屏在低亮度下具有不稳定性，通常采用脉冲宽度调制(Pulse width modulation，PWM)调光的方式来实现亮度控制，过低的频率，容易导致眼睛的视觉疲劳。
发明内容
根据本申请的各种实施例，提供显示模组及其控制方法和电子设备。
一种显示模组，包括：
壳组件，
柔性显示屏，包括第一显示单元和连接于所述第一显示单元的第二显示单元；所述第一显示单元为电子墨水显示单元，所述第二显示单元为主动式发光的显示单元；
驱动机构，设置于所述壳组件且用于带动第一显示单元和第二显示单元隐藏于所述壳组件内或外露于所述壳组件外。
本申请实施例还提供一种显示模组的控制方法，所述控制方法包括：
向驱动机构发送用于控制所述驱动机构工作的第一控制信号和第二控制信号；其中，所述驱动机构设置于壳组件且用于带动第一显示单元和第二显示单元隐藏于所述壳组件内或外露于所述壳组件外；
根据所述第一控制信号驱动所述驱动机构带动第一显示单元隐藏于所述壳组件内，并带动所述第二显示单元外露于所述壳组件外，以及根据所述第二控制信号驱动所述驱动机构带动所述第二显示单元隐藏于所述壳组件内，并带动所述第一显示单元外露于所述壳组件外。
本申请实施例还提供一种电子设备，包括前述的显示模组。
本申请的一个或多个实施例的细节在下面的附图和描述中提出。本申请的其他特征、目的和优点将从说明书、附图以及权利要求书变得明显。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为一实施例的显示模组在第一状态的结构示意图之一；
图2为一实施例的显示模组在第二状态的结构示意图；
图3为一实施例的显示模组的柔性显示屏的结构示意图；
图4为一实施例的显示模组的柔性显示屏的结构示意图；
图5为另一实施例的显示模组的柔性显示屏的结构示意图；
图6为再一实施例的显示模组的柔性显示屏的结构示意图；
图7为一实施例的显示模组中柔性显示屏的层状结构示意图；
图8为一实施例的驱动模块的驱动电路图；
图9为一实施例的第一像素电路和第二像素电路的电路图；
图10为另一实施例的驱动模块的驱动电路图；
图11为一实施例的显示模组的控制方法的流程图；
图12为另一实施例的显示模组的控制方法的流程图。
具体实施方式
为了便于理解本申请实施例，下面将参照相关附图对本申请实施例进行更全面的描述。附图中给出了本申请实施例的首选实施例。但是，本申请实施例可以以许多不同的形式来实现，并不限于本文所描述的实施例。相反地，提供这些实施例的目的是使对本申请实施例的公开内容更加透彻全面。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请实施例的技术领域的技术人员通常理解的含义相同。本文中在本申请实施例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，不是旨在于限制本申请实施例。本文所使用的术语“及/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。
在本申请实施例的描述中，需要理解的是，术语“上”、“下”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方法或位置关系，仅是为了便于描述本申请实施例和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请实施例的限制。
如图1-3所示，根据本申请实施例的显示模组，包括：壳组件10、柔性显示屏20、驱动机构30和控制模块40。其中，壳组件10开设有空腔101，用于容置柔性显示屏20、驱动机构30和控制模块40。具体的，该壳组件10还开设有显示窗口102，该显示窗口102与空腔101连通。其中，柔性显示屏20的显示面朝向显示窗口102设置。
请继续参考图3，柔性显示屏20包括第一显示单元201和连接于第一显示单元201的第二显示单元202。其中，第一显示单元201和第二显示单元202的结构不同，因此，第一显示单元201和第二显示单元202具有不同的发光功耗的显示质量。具体地，可以使第一显示单元201的发光功耗小于第二显示单元202的发光功耗，并使第二显示单元202的显示质量优于第一显示单元201的显示质量，从而使显示模组在不同的运行状态下，能够以较低的整体功耗实现较佳的显示质量。
在其中一个实施例中，第一显示单元201可包括多个被动式发光像素，例如，电子墨水像素，因此，第一显示单元201可以为电子墨水显示单元或电子墨水屏。第二显示单元202可包括多个主动式发光像素，例如，具有不同颜色的有机发光二极管(OrganicLight-Emitting Diode，OLED)、microLED或量子点发光二极管(Quantum Dot Light Emitting Diodes，QLED)等，因此，第二显示单元202可以为AMOLED显示单元。
驱动机构30，设置于壳组件10内，且用于带动第一显示单元201和第二显示单元202隐藏于所述壳组件10内或外露于所述壳组件10外。可以理解的是，驱动机构30能够在控制信号的控制下，带动第一显示单元201和第二显示单元202运动，其运动形式可以为卷绕、传动、伸缩等。示例性的，驱动机构30可带动第一显示单元201隐藏于所述壳组件10内，且带动第二显示单元202外露于所述壳组件10外，或，驱动机构30可带动第一显示单元201外露于所述壳组件10外，且带动第二显示单元202隐藏于所述壳组件10内。外露于上述显示模组中的柔性显示屏，包括第一显示单元201和连接于所述第一显示单元201的第二显示 单元202；其中，所述第一显示单元201为电子墨水显示单元，所述第二显示单元202为主动式发光的显示单元。显示模组中的驱动机构30可带动第一显示单元201隐藏于壳组件10内，并带动第二显示单元202外露于壳组件10外，以使第二显示单元202覆盖该显示窗口102。驱动机构30也可带动第二显示单元202隐藏于壳组件10内，并带动第一显示单元201外露于壳组件10外，以使第一显示单元201覆盖该显示窗口102。因此，本申请实施例可提供的显示模组为双屏显示模组，通过在该显示模组中引入电子墨水显示单元，可以在没有电源的情况下持续显示画面，只有画面变化时才需要消耗少量电量，这种特性极大地将降低了显示模组的功耗，同时，电子墨水显示单元无需背光，它是利用环境光打在显示屏上，再折射到眼睛，这种方式模拟了墨水和纸张的特性，也即，采用了反射自然光而不是主动射出光的方式，使人眼观看到的屏幕亮度与环境一致，从而不刺激视锥细胞，起到护眼的作用。同时，还可以在任何状态保证任一显示单元外露于壳组件外，以满足用户的使用需求。同时，还可以减小显示模组的整机尺寸和体积，从而提升用户携带的方便性。
在其中一个实施例中，驱动机构30可用于带动柔性显示屏20展开或将柔性显示屏20卷绕起来。具体的，该驱动机构30能够驱使第一显示单元201和第二显示单元202在卷绕状态和展开状态之间切换。其中，在卷绕状态时，至少部分柔性显示屏20卷绕于驱动机构30。也即，在卷绕状态时，驱动机构30可带动第一显示单元201或第二显示单元202卷绕于驱动机构30。在展开状态时，卷绕于驱动机构30的柔性显示屏20外露于壳组件10外。也即，在展开状态时，可以将再卷绕状态时卷绕于驱动机构30的柔性显示屏20外露于壳组件10外。
具体的，展开状态包括第一状态和第二状态，在不同状态，其第一显示单元201和第二显示单元202的卷绕、展开状态也不相同。进一步的，在第一状态时，第一显示单元201外露于壳组件10外，全部第二显示单元202隐藏于壳组件10内，这样第二显示单元202可以完全卷绕在驱动机构30上，其第一显示单元201呈展开状态外露于壳体外，以呈现第一显示单元201完整的第一显示区，其壳组件10不会遮挡第一显示单元201的第一显示区。在第二状态时，全部第一显示单元201隐藏于壳组件10内，第二显示单元202外露于壳组件10外。全部第一显示单元201隐藏于壳组件10内，这样第一显示单元201可以完全卷绕在驱动机构30上，其第二显示单元202呈展开状态外露于壳体外，以呈现第二显示单元202完整的第二显示区，其壳组件10不会遮挡第二显示单元202的第二显示区。因此，当显示模组处于展开状态时，都会呈现出不同显示单元的完整显示区以满足用户的使用需求，另外还可以实现第一显示单元201和第二显示单元202之间的无缝切换。
当在第一状态时，显示模组还可以驱动第一显示单元201发光；相应的，在第二状态时，驱动模块也可以对应驱动第二显示单元202发光。在本实施例中，显示模组可以针对电子设备不同的运行状态，选择不同的显示单元发光，从而使第一显示单元201和第二显示单元202互相独立地实现相应的显示功能，即实现了灵活的双屏显示。
请继续参考图1和图2，在其中一个实施例中，驱动机构30包括第一轴310、第二轴320和驱动组件330。其中，第一轴310与第一显示单元201的远离第二显示单元202的一端连接。第二轴320，与第二显示单元202的远离第一显示单元201的一端连接。具体的，该第一显示单元201可包括第一显示区和第二非显示区，第二显示单元202可包括第二显示区和第二非显示区。其中，在远离第二显示单元202的一端的第一非显示区设有一第一连接部，用于与第一轴310固定连接。在远离第一显示单元201的一端的第二非显示区设有一第二连接部，用于与第二轴320固定连接。
驱动组件330，分别与第一轴310和第二轴320连接。其中，驱动组件330可理解为动力组件，用于输出动力给第一轴310和第二轴320中至少一个，以使第一轴310和第二轴320转动，进而带动第一显示单元201和第二显示单元202运动。具体的，驱动组件330可用于根据第一控制信号驱动第一轴310使得至少部分第一显示单元201卷绕于第一轴310，并带动第二显示单元202从卷绕状态切换至展开状态，还用于根据第二控制信号驱动第二轴320使得至少部分第二显示单元202卷绕于第二轴320，并带动第一显示单元201从卷绕状态切 换至展开状态。
进一步的，第一轴310和第二轴320平行设置，且第一显示单元201和第二显示单元202在卷绕状态和展开状态之间切换的过程中，第一轴310和第二轴320同步且同向转动，以使第一显示单元201和第二显示单元202在第一状态和第二状态之间实现切换。
在其中一个实施例中，驱动组件330可包括一个动力部，该动力部可分别与第一轴310和第二轴320连接。具体的，该动力部可根据第一控制信号，驱动第一轴310向第一方向旋转，并通过柔性显示屏20带动第二轴320与第一轴310同步且同向转动，以使柔性显示屏20处于第一状态。动力部也可以根据第二控制信号，驱动第二轴320向第二方向旋转，并通过柔性显示屏20带动第一轴310与第二轴320同步且同向转动，以使柔性显示屏20处于第二状态。
如图4所示，可选的，该驱动组件330还可以包括两个动力部，具体可包括第一动力部331和第二动力部332，其中，第一动力部331与第一轴310连接，第二动力部332与第二轴320连接。第一动力部331和第二动力部332可根据第一控制信号分别驱动第一轴310和第二轴320向第一方向同步旋转以使柔性显示屏20处于第一状态；相应的，第一动力部331和第二动力部332可根据第二控制信号分别驱动第一轴310和第二轴320向第二方向同步旋转以使柔性显示屏20处于第二状态。通过采用两个动力部来同时驱动第一轴310和第二轴320旋转，可以提供柔性显示屏20在第一状态和第二状态之间的切换效率，同时，还可以避免单一方向产生的应力对柔性显示屏20的光学胶层带来的损害，延长了柔性显示屏20的使用寿命。
可选的，驱动组件330中的第一轴310和第二轴320中的一个轴可以用支撑部替换，其中，该支撑部与壳组件10固定连接，该支撑轴不可在外力的作用下做旋转运动。具体的，支撑部可以为圆柱状，其柔性显示屏20可以贴设于该支撑部的部分外表面，对柔性显示屏20起到支撑作用。需要说明的是，当第一轴310和第二轴320用支撑部替换时，其驱动组件330的动力部可做适应性调整，以提供适应于驱动组件330的驱动力。如图5所示，在其中一个实施例中，驱动机构30可包括驱动部件340和传动带350。柔性显示屏20展开铺设在传动带350上。其中，驱动部件340可驱动传动带350转动，进而可带动柔性显示屏20转动，也即，该柔性显示屏20相对于驱动机构30处于静止状态。具体的，该驱动机构30能够驱使第一显示单元201和第二显示单元202在第一传动状态和第二传动状态之间切换。其中，在第一传动状态时，所述第一显示单元201外露于所述壳组件10外，全部所述第二显示单元202隐藏于壳组件10内。在第二传动状态时，可以将在第一传动状态时收纳于壳组件10的柔性显示屏20外露于壳组件10外。也即，在第二传动状态时，全部所述第一显示单元201隐藏于所述壳组件10内，所述第二显示单元202外露于所述壳组件10外。
在本实施例中，通过将柔性显示屏20展开铺设固定在该驱动机构30上，通过驱动机构30带动柔性显示屏20在第一传动状态和第二传动状态之间切换，可以在任何状态保证任一显示单元外露于壳组件外，以满足用户的使用需求，同时，还可以减小显示模组的整机尺寸和体积，从而提升用户携带的方便性。
请继续参考图1、2，在其中一个实施例中，显示模组还包括控制模块40。控制模块40被配置为向驱动机构30发送用于控制驱动机构30工作的第一控制信号和第二控制信号。其中，第一控制信号用于驱动驱动机构30带动第一显示单元201隐藏于壳组件10内，并带动第二显示单元202外露于壳组件10外，第二控制信号用于驱动驱动机构30带动第二显示单元202隐藏于壳组件10内，并带动第一显示单元201外露于壳组件10外。也即，驱动机构30可在第一控制信号的控制下，带动第一显示单元201隐藏于壳组件10内，并带动第二显示单元202外露于壳组件10外，以使第二显示单元202覆盖该显示窗口102。驱动机构30可在第二控制信号的控制下，带动第二显示单元202隐藏于壳组件10内，并带动第一显示单元201外露于壳组件10外，以使第一显示单元201覆盖该显示窗口102。请继续参考图4，在其中一个实施例中，显示模组还包括连接于第一轴310的传感模块50。该传感模块50可 以包括角度传感器、角速度传感器等，可用于检测第一轴310的旋转角度。其中，该旋转角度可对应于第一轴310或第二轴320所卷绕的柔性显示屏20在卷绕方向上的长度尺寸。另外，该传感模块50还可与控制模块40连接，用于将旋转角度输出至控制模块40。控制模块40根据接收到的旋转角度与预设角度进行比较，当旋转角度为预设角度时，可输出停止信号，以控制第一轴310和第二轴320停止转动。其中，预设角度可以根据柔性显示屏20的厚度、第一显示单元201、第二显示单元202的在展开方向上的长度尺寸、第一轴310的轴径等信息来确定。需要说明的是，在本申请实施例中，对预设角度的大小不做限定。当第一轴310和第二轴320停止旋转时，其柔性显示屏20的正好处于第一状态或第二状态，可以实现第一显示单元201和第二显示单元202的无缝切换，同时，还可以提高第一显示单元201和第二显示单元202的显示效果。
在其中一个实施例中，柔性显示屏20还包括设置在第一显示单元201和第二显示单元202之间的显示边框203。如图6所示，在本实施中，其传感模块50可固定在壳组件10上。传感模块50可以为接近传感器，可以用于检测显示边框203的位置信息。该传感模块50还可与控制模块40连接，用于将位置信息输出至控制模块40。控制模块40根据接收到的位置信息与预设位置进行比较，当位置信息达到预设位置时，可输出停止信号，以控制第一轴310和第二轴320停止转动。其中，预设位置可以为靠近第一轴310或靠近第二轴320的显示窗口102的窗口壁。当显示边框203达到预设位置时，控制第一轴310和第二轴320停止转动，这样，其第一轴310或第二轴320刚好与显示边框203对应，其卷绕在驱动机构30上的第一显示单元201或第二显示单元202就不会外露于壳体，可以实现第一显示单元201和第二显示单元202的无缝切换，同时，还可以提高第一显示单元201和第二显示单元202的显示效果。
为了便于说明，以第一显示单元201为电子墨水显示单元，第二显示单元202为AMOLED显示单元为例进行说明，其中，电子墨水显示单元包括多个阵列排布的电子墨水像素，AMOLED显示单元包括多个阵列排布的有机发光二极管(OLED)。
如图7所示，第一显示单元201包括依次层叠设置的第一电极层2011、流体层2012和第二电极层2013。在本实施例中，每个电子墨水像素的第一电极层2011互相隔离，且第二电极层2013互相导通并连接至一预设电平。其中，流体层2012中包括遮光墨水粒子和反光墨水粒子。示例性地，遮光墨水粒子为黑色墨水粒子，反光墨水粒子为白色墨水粒子。具体地，遮光墨水粒子可以为黑色带电颗粒，反光粒子可以为白色带电颗粒，黑色带电颗粒和白色带电颗粒所携带的电荷不同，并将黑色带电颗粒和白色带电颗粒分别封装于多个透明微胶囊中。具体的，黑色墨水粒子带负电，白色墨水粒子带正电，并且流体层2012夹在第三电极层和第四电极层之间，这两个电极层被分成多个区域，每个区域是等同于第一显示单元201中的一个像素。基于上述流体层2012的结构，可以利用外加电场控制黑色带电颗粒和白色带电颗粒移动，并最终形成稳定的排列，从而使电子墨水像素具有不同的反射性能，同时，还可以通过控制施加在每个像素电极层上的电压，来控制电子墨水像素的显示亮度。
第二显示单元202可包括依次层叠设置的第三电极层2021、发光层2022和第四电极层2023。同时，第一显示单元201的第二电极层2013还与第二显示单元202的第四电极层2023共电极。其中，第三电极层2021可以为阳极层，第四电极层2023可以为阴极层。阳极层的材料可以为ITO、FTO、AZO、IZO、石墨烯、碳纳米管、金属单质、金属单质纳米线、金属合金纳米线、金属异质结纳米线中的至少一种。阴极层的材料可以为例如铝(Al)、铝镁合金(Al-Mg)或镁银合金(Mg-Ag)。发光层2022可用于可以发射红光、绿光或蓝光。
在本申请实施例中，第一显示单元201和第二显示单元202通过共电极的设计，可以最大限度的减少显示模组的制成工艺流程，降低成本。
请继续参考图7，在其中一个实施例中，柔性显示屏20还包括用于柔性基板210，该第一显示单元201、第二显示单元202均设置在柔性基板210同一面。柔性基板210可包括依次层叠设置的衬底层211和缓冲层212。第一显示单元201和第二显示单元202还包括设置 在缓冲层212上的栅绝缘层220、层间绝缘层230、平坦化层240和像素定义层250。其中，第一显示单元201和第二显示单元202的各像素形成在像素定义层250上。进一步的，在像素定义层上还形成有偏光片层260和盖板270。
进一步的，在栅绝缘层220、层间绝缘层230、平坦化层240中还形成了第一显示单元201的第一像素电路622和第二显示单元202的第二像素电路623。具体的，第一像素电路622包括栅极6221、源极6222、漏极6223、源极接触结构6224和漏极接触结构6225，其中，第一显示单元201中的第二电极层2013与漏极电性连通，从而共同控制第一显示单元201中的各像素发光。第二像素电路623可包括栅极6231、源极6232、漏极6233、源极接触结构6234和漏极接触结构6235，第二显示单元202中的第四电极层2023与漏极电性连通，从而共同控制第二显示单元202中的各像素发光。
在本申请实施例中，柔性显示屏20通过合理的显示叠层设计，第一显示单元201在最大程度上的共用了第二显示单元202的层状结构，例如，柔性基板210、栅绝缘层220、层间绝缘层230、平坦化层240、第四电极层2023、偏光片层260和盖板270，其可以降低生产成本。
在其中一个实施例中，显示模组还包括驱动模块，其中，驱动模块可在第二显示单元202外露于所述壳组件10外时，驱动所述第二显示单元202发光，并在所述第一显示单元201外露于所述壳组件10外时，驱动所述第一显示单元201发光，进而实现灵活的双屏显示。本实施中，可根据用户的使用场景，通过控制第一轴310和第二轴320，实现在常规柔性AMOLED显示单元和电子墨水显示单元之间无缝显示切换，可以降低功耗还可以兼顾护眼的功能，另外，还可以，减薄显示模组的整体厚度，从而为所搭载的显示模组提供更多的设计空间，即，本实施例提供了一种更轻薄且灵活性更高的显示模组。
如图8所示，在其中一个实施例中，驱动模块60可包括控制单元610、第一栅极驱动电路和第二栅极驱动电路。具体的，控制单元610可以为显示驱动芯片(Display Driver IC，DDIC)。其中，控制单元610，被配置有用于输出第一激励信号GSTV1的第一激励端和用于输出第二激励信号GSTV2的第二激励端。其中，第一激励信号GSTV1可以为第一显示单元201行控制信号的初始激励信号，第二激励信号GSTV2可以为第二显示单元202行控制信号的初始激励信号。
第一栅极驱动电路的栅输入端与所述第一激励端连接，所述第一栅极驱动电路的栅输出端与所述第一显示单元201连接。具体的，第一栅极驱动电路可包括第一栅极扫描驱动单元621和多个第一像素电路622，第一栅极扫描驱动单元621包括多个级联的第一扫描驱动移位寄存器单元(GOA)621a。第一扫描驱动移位寄存器单元621a用于向第一像素电路622提供例如逐行移位的栅极扫描信号。每级第一扫描驱动移位寄存器单元621a包括第一栅输入端和第一栅输出端。其中，第一级第一扫描驱动移位寄存器单元621a的第一栅输入端作为第一栅极驱动电路的栅输入端与控制单元610的第一激励端连接，第二级第一扫描驱动移位寄存器单元621a至最后一级第一扫描驱动移位寄存器单元621a的第一栅输入端与上一级第一移位寄存器电路的第一栅输出端连接。每级第一扫描驱动移位寄存器单元621a的第一栅输出端还与第一像素电路622连接，用于向第一像素电路622提供栅极扫描信号。如图9所示，第一像素电路包括：第一晶体管T1。其中，第一晶体管T1的控制端与第一扫描驱动移位寄存器单元621a的第一栅输出端连接，所述第一晶体管T1的第一端与所述数据信号线连接，所述第一晶体管T1的第二端与电子墨水像素连接，所述第一晶体管T1用于控制电子墨水像素与所述数据信号线之间的路径的通断。
第二栅极驱动电路的栅输入端与所述第二激励端连接，所述第二栅极驱动电路的栅输出端与所述第二显示单元202连接。具体的，第二栅极驱动电路可包括第二栅极扫描驱动单元631和多个第二像素电路632，每一第二栅极扫描驱动单元631包括多个级联的第二扫描驱动移位寄存器单元632a，第二扫描驱动移位寄存器单元632a用于向第二像素电路632提供例如逐行移位的栅极扫描信号。每级第二扫描驱动移位寄存器单元632a包括第二栅输入端和第二栅输出端。其中，第一级第二扫描驱动移位寄存器单元632a的第二栅输入端作为第二栅极 驱动电路的栅输入端与控制单元610的第二激励端连接，第二级第二扫描驱动移位寄存器单元632a至最后一级第二扫描驱动移位寄存器单元632a的第二栅输入端与上一级第二移位寄存器电路的第二栅输出端连接。每级第二扫描驱动移位寄存器单元632a的第二栅输出端还与第二像素电路632连接，用于向第二像素电路632提供栅极扫描信号。第二像素电路632可以包括本领域内的具有7T1C、7T2C、8T2C、6T1C或4T1C等电路结构。第二像素电路632在通过数据线传输的数据信号和通过栅线传输的栅极扫描信号的控制下工作，以驱动第二显示单元202的各主动式发光像素发光从而实现显示等操作。请继续参考图9，本申请实施例提供一种6T1C的第二像素电路623。
进一步的，控制单元610用于向第一激励端输出第一激励信号GSTV1，以开启或关闭所述第一扫描驱动移位寄存器单元621a的第一栅输出端。控制单元610用于向第二激励端输出第二激励信号GSTV2，以开启或关闭所述第二扫描驱动移位寄存器单元632a的第二栅输出端。在同一时刻，所述第一激励信号GSTV1和第二激励信号GSTV2的电平状态相反。
当第一显示单元201需要显示、第二显示单元202不需要显示时，控制单元610可向第一栅极驱动电路的栅输入端输出具有第一电平的第一激励信号GSTV1，开启该第一栅极扫描驱动单元621中第一扫描驱动移位寄存器单元621a的第一栅输出端，使得第一栅输出端输出栅极扫描信号，使得第一显示单元201显示，同时，控制单元610可向第二栅极驱动电路的栅输入端输出具有第二电平的第二激励信号GSTV2，关闭该第二栅极扫描驱动单元631中第二扫描驱动移位寄存器单元632a的第二栅输出端，使得第二栅输出端不再输出栅极扫描信号，使得第二显示单元202不显示。
当第一显示单元201不需要显示、第二显示单元202需要显示时，控制单元610可向第一栅极驱动电路的栅输入端输出具有第二电平的第一激励信号GSTV1，关闭该第一栅极扫描驱动单元621中第一扫描驱动移位寄存器单元621a的第一栅输出端，使得第一栅输出端不再输出栅极扫描信号，使得第一显示单元201不显示。同时，控制单元610可向第二栅极驱动电路的栅输入端输出具有第一电平的第二激励信号GSTV2，开启该第二栅极扫描驱动单元631中第二扫描驱动移位寄存器单元632a的第二栅输出端，使得第二栅输出端输出栅极扫描信号，使得第二显示单元202显示。在本申请实施例中，第一电平可以为低电平信号，第二电平为高电平信号。
可选的，第一电平可以为高电平信号，第二电平为低电平信号。
需要说明的是，在本申请实施例中，对第一激励信号GSTV1和第二激励信号GSTV2的电平状态不做进一步的限定。
通过设置控制单元610、第一栅极驱动电路和第二栅极驱动电路，控制单元610可根据第一显示单元201和第二显示单元202的显示需求或展开状态，可单独控制输入至第一激励端和第二激励端的激励信号，可以单独控制第一显示单元201和第二显示单元202的显示，以实现第一显示单元201和第二显示单元202之间的显示切换，在本申请实施例中，第一显示单元201和第二显示单元202的显示控制可以共用同一控制单元610，可以降低成本，还避免了功耗的浪费，提高了显示面板的续航能力。
如图10所示，在其中一个实施例中，所述控制单元610还被配置有用于输出第一使能信号ESTV1的第一使能端和用于输出第二使能信号ESTV2的第二使能端。所述驱动模块60还包括第一发光信号驱动电路623和第二发光信号驱动电路633。第一发光信号驱动电路623的使能输入端与所述第一使能端连接，所述第一发光信号驱动电路623的输出端与所述第一显示单元201连接。具体的，第一发光信号驱动电路623包括多个级联的第一发光控制移位寄存器单元(EOA)623a。第一发光信号驱动电路623用于向第一显示单元201中的阵列排布的电子墨水像素提供例如逐行移位的发光控制信号。具体的，每级第一发光信号驱动电路623包括第一使能输入端和第一使能输出端。其中，第一级第一发光控制移位寄存器单元623a的第一使能输入端作为第一发光信号驱动电路623的使能输入端与控制单元610的第一使能端连接，第二级第一发光控制移位寄存器单元623a至最后一级第一发光控制移位寄存器单元623a 的第一使能输入端与上一级第一发光控制移位寄存器电路的第一使能输出端连接。每级第一发光控制移位寄存器单元623a的第一使能输出端还与第一像素电路622连接，用于向第一像素电路622提供发光控制信号。
其中，第二使能信号ESTV2还可以理解为用于驱动第二像素电路的PWM电路的起始控制激励信号。第二发光信号驱动电路633的第二使能输入端与所述第二使能端连接，所述第二发光信号驱动电路633的使能输出端与所述第二显示单元202连接。具体的，第二发光信号驱动电路633包括多个级联的第二发光控制移位寄存器单元(EOA)633a。第二发光信号驱动电路633用于向第二显示单元202中的阵列排布的主动式发光像素提供例如逐行移位的发光控制信号。具体的，每级第二发光信号驱动电路633包括第二使能输入端和第二使能输出端。其中，第一级第二发光控制移位寄存器单元633a的第二使能输入端与控制单元610的第一使能端连接，第二级第二发光控制移位寄存器单元633a至最后一级第二发光控制移位寄存器单元633a的第二使能输入端与上一级第二发光控制移位寄存器电路的第二使能输出端连接。每级第二发光控制移位寄存器单元633a的第二使能输出端还与第二像素电路632连接，用于向第二像素电路632提供发光控制信号。
进一步的，控制单元610用于向第一使能端输出第一使能信号ESTV1，以开启或关闭所述第一发光控制移位寄存器单元623a的第一使能输出端。控制单元610用于向第二使能端输出第二使能信号ESTV2，以开启或关闭所述第二发光控制移位寄存器单元633a的第二使能输出端。
具体的，当驱动所述柔性显示屏20发光时，所述第一激励信号GSTV1和所述第一使能信号ESTV1的电平状态相同，所述第二激励信号GSTV2和所述第二使能信号ESTV2的电平状态相同。示例性的，当展开状态为第一状态时，控制单元610可向第一激励端输出具有第一电平的第一激励信号GSTV1和具有第一电平的第一使能信号ESTV1，以使第一扫描驱动移位寄存器单元621a的第一栅输出端输出栅极扫描信号以及第一发光控制移位寄存器单元623a的第一使能输出端输出发光控制信号。其中，栅极扫描信号和发光控制信号可共同作用于第一像素电路622，以第一像素电路622的第一晶体管T1使能，则电子墨水像素可以接受来自数据信号线的数据信号，并根据数据信号实现带电粒子的移动，从而显示目标图像。同时，控制单元610可向第二激励端输出具有第二电平的第二激励信号GSTV2和具有第二电平的第二使能信号ESTV2，以使第二扫描驱动移位寄存器单元632a的第二栅输出端不再输出栅极扫描信号以及第二发光控制移位寄存器单元633a的第二使能输出端不再输出发光控制信号，使得第二显示单元202不显示。
当展开状态为第二状态时，控制单元610可向第一激励端输出具有第二电平的第一激励信号GSTV1和具有第二电平的第一使能信号ESTV1，以使第一扫描驱动移位寄存器单元621a的第一栅输出端不再输出栅极扫描信号以及第一发光控制移位寄存器单元623a的第一使能输出端不再输出发光控制信号，使得第一显示单元201不显示。
请继续参考图9，第二像素电路632包括：第二晶体管T2、第三晶体管T3、第三晶体管T4、第三晶体管T5、第三晶体管T6、第三晶体管T7、第三晶体管T8、存储电容C。其中，第二晶体管T2的控制端与第一发光控制移位寄存器单元623a的第一使能输出端连接，所述第二晶体管T2的第一端与数据信号线连接，所述第二晶体管T2的第二端与第二显示单元202的主动式发光像素，例如OLED子像素连接，所述第二晶体管T2用于控制第二显示单元202的主动式发光像素与所述数据信号线之间的路径的通断。控制单元610可向第二激励端输出具有第一电平的第二激励信号GSTV2和具有第一电平的第二使能信号ESTV2，以使第二扫描驱动移位寄存器单元632a的第二栅输出端输出栅极扫描信号以及第二发光控制移位寄存器单元633a的第二使能输出端输出发光控制信号，其中，栅极扫描信号和发光控制信号可共同作用于第二像素电路632，以使第二像素电路632的第二晶体管T2使能，并导通主动式发光像素与所述数据信号线之间的路径，则主动式发光像素可以接受来自数据信号线的数据信号，并根据数据信号显示目标图像。
在其中一个实施例中，请继续参考图8和图10，控制单元610还可以配置有第一电源端VGH、第二电源端VGL、第一时钟端GCK和第二时钟端GCB。控制单元610的第一电源端VGH、第二电源端VGL分别依次与第一电源信号线VGH、第二电源信号线VGL连接。控制单元610的第一时钟端GCK、第二时钟端GCB分别依次与第一时钟信号线GCK、第二时钟信号线GCB连接。第一时钟信号线GCK和第二时钟信号线GCB周期相同、状态相反。
第一显示单元201和第二显示单元202在同一列上的像素，共用同一根数据线(GCK、GCB)，该数据线(GCK、GCB)可将控制单元610输出的数据信号传输至对应的第一像素电路622、第二像素电路632，以与栅极扫描信号、发光控制信号共同控制第一显示单元201、第二显示单元202显示。
通过本实施例的设置方式，可以有效减少数据信号线的数量，同时减少控制单元610，例如显示驱动芯片的使用数量，从而降低显示模组的制造成本。
如图10所示，本申请实施例还提供一种显示模组的控制方法。其中，该显示模组的控制方法可以应用于上述任意实施例中的显示模组。在其中一个实施例中，显示模组的控制方法包括步骤1102-步骤1104。
步骤1102，向驱动机构发送用于控制所述驱动机构工作的第一控制信号和第二控制信号。
其中，所述驱动机构30设置于壳组件10且用于带动第一显示单元201和第二显示单元202进出所述壳组件10。第一显示单元201和第二显示单元202共同构成柔性显示屏20。第一显示单元201和第二显示单元202的结构不同，因此，第一显示单元201和第二显示单元202具有不同的发光功耗的显示质量。具体地，可以使第一显示单元201的发光功耗小于第二显示单元202的发光功耗，并使第二显示单元202的显示质量优于第一显示单元201的显示质量，从而使显示模组在不同的运行状态下，能够以较低的整体功耗实现较佳的显示质量。
步骤1104，根据所述第一控制信号驱动所述驱动机构带动第一显示单元隐藏于所述壳组件内，并带动所述第二显示单元外露于所述壳组件外，以及根据所述第二控制信号驱动所述驱动机构带动所述第二显示单元隐藏于所述壳组件内，并带动所述第一显示单元外露于所述壳组件外。
其中，第一控制信号用于驱动驱动机构30带动第一显示单元201隐藏于壳组件10，并带动第二显示单元202外露于壳组件10外，第二控制信号用于驱动驱动机构30带动第二显示单元202隐藏于壳组件10，并带动第一显示单元201外露于壳组件10外。也即，驱动机构30可在第一控制信号的控制下，带动第一显示单元201隐藏于壳组件10，并带动第二显示单元202外露于壳组件10外，并可在第二控制信号的控制下，带动第二显示单元202隐藏于壳组件10，并带动第一显示单元201外露于壳组件10外。可以理解的是，第一显示单元201展开时，第二显示单元202收纳于壳组件10内；第二显示单元202展开时，第一显示单元201收纳于壳组件10内。
上述显示模组的控制方法，可以驱动驱动机构30以带动第一显示单元201和第二显示单元202进出壳组件10，以使第一显示单元201展开时，第二显示单元202收纳于壳组件10内；第二显示单元202展开时，第一显示单元201收纳于壳组件10内，由此，可以提供一种双屏显示模组的控制方法，可以提高第一显示单元201和第二显示单元202切换控制的效率。
在其中一个实施例中，显示模组的控制方法还包括步骤1202-步骤1204。
步骤1202，当所述第一显示单元外露于所述壳组件外时，驱动所述第一显示单元显示，且第二显示单元不显示。
当显示模组的展开状态为第一状态，也即所述第一显示单元201外露于所述壳组件10外，全部所述第二显示单元202隐藏于壳组件10内时，显示模组的显示驱动芯片可向第一栅极驱动电路输出具有第一电平的第一激励信号GSTV1以使第一栅极驱动电路中的各第一扫描驱动移位寄存器单元621a的输出栅极扫描信号，以及向第一发光信号驱动电路623输出具有第一电平的第一使能信号ESTV1，以使第一发光信号驱动电路623中的各第一发光控制移位寄存器单元623a输出发光控制信号。其中，栅极扫描信号和发光控制信号可共同作用于第一像素 电路622，以使第一像素电路622使能，则第一显示单元201可以接受来自数据信号线的数据信号，并根据数据信号实现带电粒子的移动，从而显示目标图像。需要说明的是，当第一显示单元201为电子墨水显示单元时，也可以不输出第一使能信号ESTV1，其中，电子墨水显示单元中，各电子墨水像素的显示可以根据栅极扫描信号和数据信号发光。
同时，显示模组的显示驱动芯片可向第二栅极驱动电路输出具有第二电平的第二激励信号GSTV2以使第二栅极驱动电路中的各第二扫描驱动移位寄存器单元632a的不再输出栅极扫描信号，以及向第二发光信号驱动电路633输出具有第二电平的第二使能信号ESTV2，以使第二发光信号驱动电路633中的各第二发光控制移位寄存器单元633a不再输出发光控制信号，使得第二显示单元202不显示。
步骤1204，当所述第二显示单元外露于所述壳组件外时，驱动所述第二显示单元显示，且第一显示单元不显示。
当显示模组的展开状态为第二状态，也即所述第额显示单元外露于所述壳组件10外，全部所述第一显示单元201隐藏于壳组件10内时，显示模组的显示驱动芯片可向第二栅极驱动电路输出具有第一电平的第一激励信号GSTV1以使第二栅极驱动电路中的各第二扫描驱动移位寄存器单元632a的输出栅极扫描信号，以及向第二发光信号驱动电路633输出具有第一电平的第二使能信号ESTV2，以使第二发光信号驱动电路633中的各第二发光控制移位寄存器单元633a输出发光控制信号。其中，栅极扫描信号和发光控制信号可共同作用于第二像素电路632，以使第二像素电路632使能，则第二显示单元202可以接受来自数据信号线的数据信号，并根据数据信号实现带电粒子的移动，从而显示目标图像。
同时，显示模组的显示驱动芯片可向第一栅极驱动电路输出具有第二电平的第一激励信号GSTV1以使第一栅极驱动电路中的各第一扫描驱动移位寄存器单元621a的不再输出栅极扫描信号，以及向第一发光信号驱动电路623输出具有第二电平的第一使能信号ESTV1，以使第一发光信号驱动电路623中的各第一发光控制移位寄存器单元623a不再输出发光控制信号，使得第一显示单元201不显示。
本实施例中的显示模组的控制方法，可以在第一状态时，驱动第一显示单元201发光；相应的，在第二状态时，也可以对应驱动第二显示单元202发光。显示模组可以针对电子设备不同的运行状态，选择不同的显示单元发光，从而使第一显示单元201和第二显示单元202互相独立地实现相应的显示功能，即实现了灵活的双屏显示。
应该理解的是，虽然图11和图12中的各个步骤按照箭头的指示依次显示，但是这些步骤并不是必然按照箭头指示的顺序依次执行。除非本文中有明确的说明，这些步骤的执行并没有严格的顺序限制，这些步骤可以以其它的顺序执行。而且，图11和图12中的至少一部分步骤可以包括多个子步骤或者多个阶段，这些子步骤或者阶段并不必然是在同一时刻执行完成，而是可以在不同的时刻执行，这些子步骤或者阶段的执行顺序也不必然是依次进行，而是可以与其它步骤或者其它步骤的子步骤或者阶段的至少一部分轮流或者交替地执行。
本申请实施例还提供了一种电子设备，包括上述任一实施例中的显示模组。其中，电子设备可以为例如显示器、平板电脑、手机和智能穿戴设备等具有显示功能的设备。本申请实施例提供的电子设备可以在任何状态下保证任一显示单元外露于壳组件外，以满足用户的使用需求，同时还具有更轻薄的厚度和更好的灵活性，具体的实施方式可以参考显示模组对应的实施方式。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请实施例的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请实施例构思的前提下，还可以做出若干变形和改进，这些都属于本申请实施例的保护范围。因此，本申请实施例专利的保护范围应以所附权利要求为准。

Claims (22)

  1. 一种显示模组，包括：
    壳组件，
    柔性显示屏，包括第一显示单元和连接于所述第一显示单元的第二显示单元；所述第一显示单元为电子墨水显示单元，所述第二显示单元为主动式发光的显示单元；
    驱动机构，设置于所述壳组件且用于带动第一显示单元和第二显示单元隐藏于所述壳组件内或外露于所述壳组件外。
  2. 根据权利要求1所述的显示模组，其中，所述驱动机构用于驱使所述第一显示单元和所述第二显示单元在卷绕状态和展开状态之间切换，其中，在所述卷绕状态时，至少部分所述柔性显示屏卷绕于所述驱动机构；在所述展开状态时，卷绕于驱动机构的柔性显示屏展开于壳组件外。
  3. 根据权利要求2所述的显示模组，其中，所述展开状态包括第一状态和第二状态，在所述第一状态时，所述第一显示单元展开于所述壳组件外，全部所述第二显示单元隐藏于壳组件内；在所述第二状态时，全部所述第一显示单元隐藏于所述壳组件内，所述第二显示单元展开于所述壳组件外。
  4. 根据权利要求3所述的显示模组，其中，所述驱动机构包括：
    第一轴，与所述第一显示单元的远离所述第二显示单元的一端连接，用于卷绕至少部分所述第一显示单元；
    第二轴，与所述第二显示单元的远离所述第一显示单元的一端连接，用于卷绕至少部分所述第二显示单元；
    驱动组件，分别与所述第一轴和所述第二轴连接，用于所述第一轴使得至少部分所述第一显示单元卷绕于所述第一轴，并带动所述第二显示单元从所述卷绕状态切换至所述展开状态，还用于驱动所述第二轴使得至少部分所述第二显示单元卷绕于所述第二轴，并带动所述第一显示单元从所述卷绕状态切换至所述展开状态。
  5. 根据权利要求4所述的显示模组，其中，所述第一轴和所述第二轴的轴线平行，所述第一显示单元和所述第二显示单元在所述卷绕状态和所述展开状态之间切换的过程中，所述第一轴和所述第二轴同步且同向转动。
  6. 根据权利要求4所述的显示模组，其中，所述显示模组还包括：
    控制模块，被配置为向所述驱动机构发送用于控制所述驱动机构工作的第一控制信号和第二控制信号；其中，所述第一控制信号用于驱动所述驱动机构带动第一显示单元隐藏于所述壳组件内，并带动所述第二显示单元外露于所述壳组件外，所述第二控制信号用于驱动所述驱动机构带动所述第二显示单元隐藏于所述壳组件内，并带动所述第一显示单元外露于所述壳组件外。
  7. 根据权利要求6所述的显示模组，其中，所述显示模组还包括：
    传感模块，所述传感模块连接于所述第一轴，且与所述控制模块电性连接，所述传感模块用于检测所述第一轴的旋转角度，
    所述控制模块还用于在旋转角度为预设角度时，停止输出所述第一控制信号或第二控制信号。
  8. 根据权利要求6所述的显示模组，其中，所述显示模组还包括设置在所述第一显示单元和第二显示单元之间的显示边框；其中，所述显示模组还包括：
    传感模块，与所述控制模块电性连接，所述传感模块用于检测所述显示边框是否达到预设位置，
    所述控制模块还用于在所述显示边框达到预设位置时，停止输出所述第一控制信号或第二控制信号。
  9. 根据权利要求3所述的显示模组，其中，所述驱动机构包括：
    支撑部，与所述壳组件固定连接；
    驱动机构包括：驱动部件和传动带，其中，所述柔性显示屏展开铺设在传动带上，所述驱动部件驱动所述传动带转动并带动所述柔性显示屏转动，以驱使所述第一显示单元和所述第二显示单元在第一传动状态和第二传动状态之间切换。
  10. 根据权利要求1所述的显示模组，其中，所述第二显示单元为AMOLED显示单元。
  11. 根据权利要求1-10任一项所述的显示模组，其中，所述显示模组还包括：
    驱动模块，用于在所述第二显示单元外露于所述壳组件外时，驱动所述第二显示单元发光，并在所述第一显示单元外露于所述壳组件外时，驱动所述第一显示单元发光。
  12. 根据权利要求11所述的显示模组，其中，所述驱动模块包括：
    控制单元，被配置有用于输出第一激励信号的第一激励端和用于输出第二激励信号的第二激励端；
    第一栅极驱动电路，所述第一栅极驱动电路的栅输入端与所述第一激励端连接，所述第一栅极驱动电路的栅输出端与所述第一显示单元连接，所述第一栅极驱动电路用于根据所述第一激励信号输出栅极扫描信号至所述第一显示单元；
    第二栅极驱动电路，所述第二栅极驱动电路的栅输入端与所述第二激励端连接，所述第二栅极驱动电路的栅输出端与所述第二显示单元连接，所述第二栅极驱动电路用于根据所述第二激励信号输出所述栅极扫描信号至所述第二显示单元；其中，所述第一激励信号和第二激励信号的电平状态相反。
  13. 根据权利要求12所述的显示模组，其中，所述第一栅极驱动电路包括第一栅极扫描驱动单元和多个第一像素电路；其中，所述第一栅极扫描驱动单元包括多个级联的第一扫描驱动移位寄存器单元，所述第一扫描驱动移位寄存器单元用于向所述第一像素电路提供逐行移位的栅极扫描信号；
    所述第二栅极驱动电路包括第二栅极扫描驱动单元和多个第二像素电路，每一所述第二栅极扫描驱动单元包括多个级联的第二扫描驱动移位寄存器单元，所述第二扫描驱动移位寄存器单元用于向所述第二像素电路提供逐行移位的栅极扫描信号。
  14. 根据权利要求13所述的显示模组，其中，所述控制单元还用于向所述第一激励端输出第一激励信号，以开启或关闭所述第一扫描驱动移位寄存器单元的第一栅输出端；
    所述控制单元还用于向所述第二激励端输出第二激励信号，以开启或关闭所述第二扫描驱动移位寄存器单元的第二栅输出端，其中，在同一时刻，所述第一激励信号和第二激励信号的电平状态相反。
  15. 根据权利要求12所述的显示模组，其中，所述控制单元还被配置有用于输出第一使能信号的第一使能端和用于输出第二使能信号的第二使能端；其中，所述驱动模块还包括：
    第一发光信号驱动电路，所述第一发光信号驱动电路的使能输入端与所述第一使能端连接，所述第一发光信号驱动电路的使能输出端与所述第一显示单元连接，所述第一发光信号驱动电路用于根据所述第一使能信号输出发光驱动信号至所述第一显示单元；
    第二发光信号驱动电路，所述第二发光信号驱动电路的使能输入端与所述第二使能端连接，所述第二发光信号驱动电路的使能输出端与所述第二显示单元连接；所述第二发光信号驱动电路用于根据所述第二使能信号输出发光驱动信号至所述第二显示单元，其中，
    当驱动所述柔性显示屏发光时，所述第一激励信号和所述第一使能信号的电平状态相同，所述第二激励信号和所述第二使能信号的电平状态相同。
  16. 根据权利要求15所述的显示模组，其中，所述第一发光信号驱动电路包括多个级联的第一发光控制移位寄存器单元，所述第一发光信号驱动电路用于向所述第一显示单元中的阵列排布的电子墨水像素提供逐行移位的发光控制信号；
    所述第二发光信号驱动电路包括多个级联的第二发光控制移位寄存器单元，所述第 二发光信号驱动电路用于向所述第二显示单元中的阵列排布的主动式发光像素提供逐行移位的发光控制信号。
  17. 根据权利要求16所述的显示模组，其中，所述控制单元还用于向所述第一使能端输出第一使能信号，以开启或关闭所述第一发光控制移位寄存器单元的第一使能输出端；所述控制单元还用于向第二使能端输出第二使能信号，以开启或关闭所述第二发光控制移位寄存器单元的第二使能输出端。
  18. 根据权利要求1所述的显示模组，其中，所述电子墨水单元包括依次层叠设置的第一电极层、流体层和第二电极层，所述主动式发光的显示单元包括依次层叠设置的第三电极层、发光层和第四电极层；其中，所述第二电极层和所述第四电极层共电极。
  19. 一种显示模组的控制方法，所述控制方法包括：
    向驱动机构发送用于控制所述驱动机构工作的第一控制信号和第二控制信号；其中，所述驱动机构设置于壳组件且用于带动第一显示单元和第二显示单元隐藏于所述壳组件内或外露于所述壳组件外；
    根据所述第一控制信号驱动所述驱动机构带动第一显示单元隐藏于所述壳组件内，并带动所述第二显示单元外露于所述壳组件外，以及根据所述第二控制信号驱动所述驱动机构带动所述第二显示单元隐藏于所述壳组件内，并带动所述第一显示单元外露于所述壳组件外；其中，所述第一显示单元为电子墨水显示单元，所述第二显示单元为主动式发光的显示单元。
  20. 根据权利要求19所述的方法，其中，所述方法还包括：
    当所述第一显示单元外露于所述壳组件外时，驱动所述第一显示单元显示，且第二显示单元不显示；
    当所述第二显示单元外露于所述壳组件外时，驱动所述第二显示单元显示，且第一显示单元不显示。
  21. 一种电子设备，包括：如权利要求1-18任一项所述的显示模组。
  22. 根据权利要求21所述的电子设备，其中，所述壳组件开设有空腔，用于容置所述柔性显示屏、所述驱动机构和所述控制模块，其中，所述壳组件还开设有显示窗口，所述显示窗口与空腔连通；其中，所述柔性显示屏的显示面朝向显示窗口设置。
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