WO2023025153A1 - 显示模组及电子设备 - Google Patents

显示模组及电子设备 Download PDF

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Publication number
WO2023025153A1
WO2023025153A1 PCT/CN2022/114276 CN2022114276W WO2023025153A1 WO 2023025153 A1 WO2023025153 A1 WO 2023025153A1 CN 2022114276 W CN2022114276 W CN 2022114276W WO 2023025153 A1 WO2023025153 A1 WO 2023025153A1
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WO
WIPO (PCT)
Prior art keywords
display screen
secondary display
light
state
driving mechanism
Prior art date
Application number
PCT/CN2022/114276
Other languages
English (en)
French (fr)
Inventor
杨思成
Original Assignee
维沃移动通信（杭州）有限公司
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Filing date
Publication date
Application filed by 维沃移动通信（杭州）有限公司 filed Critical 维沃移动通信（杭州）有限公司
Publication of WO2023025153A1 publication Critical patent/WO2023025153A1/zh

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Classifications

    • 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
    • G09F9/33—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 semiconductor devices, e.g. diodes
    • 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
    • G09F9/302—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 characterised by the form or geometrical disposition of the individual elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel

Definitions

  • the application belongs to the technical field of communication equipment, and in particular relates to a display module and electronic equipment.
  • OLED Organic Light-Emitting Diode
  • the electronic equipment is equipped with optical components such as a camera or a light sensor, and the light is injected into the optical components through the full screen, so that the optical components can realize corresponding functions. Due to the relatively low light transmittance of the full screen, part of the light cannot pass through the full screen, which in turn leads to the inability of optical components to achieve corresponding functions well. In the related art, the light transmittance of the area of the full screen is increased by reducing the pixel density of the area opposite to the optical components.
  • the screen resolution of the area with lower pixel density of the full screen is lower, and the screen resolution of the area with higher pixel density of the full screen is higher, so that the images displayed in the two areas are inconsistent, and there is an obvious sense of fragmentation, resulting in The display effect of the full screen is poor, which affects the user experience.
  • the purpose of the embodiments of the present application is to provide a display module and an electronic device, which can solve the problem of inconsistencies in images displayed in areas with different pixels of the full screen, resulting in poor display effects.
  • the present invention discloses a display module, including a main display screen, a secondary display screen and a driving mechanism, wherein:
  • the main display screen includes a light-transmitting area, the secondary display screen is a flexible screen, and at least part of the secondary display screen is opposite to the light-transmitting area, the driving mechanism is connected to the secondary display screen, and the The driving mechanism drives the secondary display screen to switch between the first state and the second state;
  • the pixel density of a region on the secondary display screen opposite to the light-transmitting region is a first density
  • the pixel density of the area on the secondary display screen opposite to the light-transmitting area is a second density, and the second density is greater than the first density. density.
  • the present invention also discloses an electronic device, including the above display module.
  • the driving mechanism can drive the secondary display screen to switch between the first state and the second state.
  • the pixel density of the area is low, the light transmittance is high, the resolution of different areas of the display module is inconsistent, the overall display effect of the display module is poor, but more light can pass through the display module.
  • the area on the sub-display opposite to the light-transmitting area has higher pixel density and lower light transmittance, so that the resolution of each area of the display module is consistent, and the display The overall display effect of the module is better, but less light can pass through the display module.
  • the display module disclosed in the present application can solve the problem of inconsistencies in images displayed in areas with different pixels of the full screen, resulting in poor display effects.
  • the display module disclosed in this application can also ensure that enough light passes through the display module.
  • FIG. 1 is an exploded view of an electronic device including a support seat disclosed in an embodiment of the present application
  • Fig. 2 is a schematic structural diagram of the secondary display screen in the second state disclosed in the embodiment of the present application;
  • Figure 3 is an enlarged view of A in Figure 2;
  • Fig. 4 is a light transmission diagram of the secondary display screen in the second state disclosed in the embodiment of the present application.
  • Fig. 5 is a schematic structural diagram of the secondary display screen in the first state disclosed in the embodiment of the present application.
  • Fig. 6 is an enlarged view of B in Fig. 5;
  • FIG. 7 is a light transmission diagram of the secondary display screen in the first state disclosed in the embodiment of the present application.
  • Fig. 8 is an assembly diagram of the supporting seat, the electrostrictive material piece and the secondary display screen in the second state disclosed in the embodiment of the present application;
  • Figure 9 is an exploded view of Figure 8.
  • Fig. 10 is an assembly diagram of the supporting seat, the electrostrictive material piece and the secondary display screen in the first state disclosed in the embodiment of the present application;
  • Figure 11 is an exploded view of Figure 10
  • FIG. 12 is an exploded view of an electronic device including a bracket disclosed in an embodiment of the present application.
  • Fig. 13 is an assembly diagram of the bracket, the electrostrictive material piece and the secondary display screen in the second state disclosed for the embodiment of the present application;
  • Figure 14 is an exploded view of Figure 13;
  • Fig. 15 is a schematic structural view of the bracket, the electrostrictive material piece and the secondary display screen in the first state disclosed in the embodiment of the present application;
  • Figure 16 is an exploded view of Figure 15;
  • Fig. 17 is a schematic structural diagram of the stent disclosed in the embodiment of the present application.
  • Fig. 18 is a schematic structural view of the main display screen, the bracket and the secondary display screen in the second state disclosed in the embodiment of the present application;
  • Fig. 19 is a schematic structural diagram of the main display screen, the bracket and the secondary display screen in the first state disclosed in the embodiment of the present application.
  • 210-main display screen 211-light-transmitting area, 220-secondary display screen, 221-light-transmitting base, 222-display pixels, 220a-plane, 220b-bending surface,
  • the embodiment of the present application discloses a display module, and the disclosed display module includes a main display 210 , a secondary display 220 and a driving mechanism.
  • the main display screen 210 includes a light-transmitting area 211 .
  • the light-transmitting area 211 may be a light-transmitting through hole provided on the main display screen 210 , or may be a non-perforated and light-transmitting area provided on the main display screen 210 .
  • the main display screen 210 may be an OLED display screen.
  • the secondary display screen 220 is a flexible screen, and at least part of the secondary display screen 220 is opposite to the light-transmitting area 211 .
  • the flexible screen can be a flexible OLED display.
  • the secondary display screen 220 may be arranged parallel to the main display screen 210 .
  • the driving mechanism is connected to the secondary display screen 220, and the driving mechanism can drive the secondary display screen 220 to switch between the first state and the second state by utilizing the bendable and rollable characteristics of the flexible screen.
  • the first state may be an unfolded state
  • the second state may be a contracted state, a curled state or a folded state.
  • the pixel density of the region on the sub-display 220 opposite to the light-transmitting region 211 is the first density
  • the pixel density of the region on the sub-display 220 opposite to the light-transmitting region 211 is the first density.
  • the light transmittance is the first light transmittance.
  • the pixel density of the area opposite to the light-transmitting area 211 on the secondary display screen 220 is relatively low, and the light transmittance is relatively high.
  • the area corresponding to the light-transmitting area 211 of the display module is inconsistent with the pictures displayed in other areas, resulting in a poor display effect of the display module, but the light transmittance of the area corresponding to the light-transmitting area 211 of the display module is relatively high. Enough light can pass through the display module.
  • the pixel density of the area on the auxiliary display screen 220 opposite to the light-transmitting area 211 is the second density, and the second density is greater than the first density.
  • the light transmittance of the area opposite to the transparent area 211 is the second light transmittance, and the second light transmittance is lower than the first light transmittance. At this time, the light transmittance of the area opposite to the light-transmitting area 211 on the sub-display 220 is low and the pixel density is high.
  • the sub-display 220 can fill the light-transmitting area of the main display 210 211 to form a blank or a lower pixel density, so that the pixel density of the area corresponding to the light-transmitting area 211 on the display module is consistent with that of other areas, so that the area on the display module corresponding to the light-transmitting area 211 It is consistent with the pictures in other areas, which finally makes the display effect of the display module better and improves the user experience.
  • the driving mechanism can drive the secondary display screen to switch between the first state and the second state.
  • the pixel density of the area is low, the light transmittance is high, the resolution of different areas of the display module is inconsistent, the overall display effect of the display module is poor, but more light can pass through the display module.
  • the area on the sub-display opposite to the light-transmitting area has higher pixel density and lower light transmittance, so that the resolution of each area of the display module is consistent, and the display The overall display effect of the module is better, but less light can pass through the display module.
  • the display module disclosed in the present application can solve the problem of inconsistencies in images displayed in areas with different pixels of the full screen, resulting in poor display effects.
  • the display module disclosed in this application can also ensure that enough light passes through the display module.
  • the secondary display screen 220 is driven to switch between the first state and the second state through the driving mechanism.
  • the driving mechanism may be a memory alloy driver or a lead screw mechanism, and the driving mechanism may also be
  • the electromagnetic induction structure for example, the driving mechanism may include an electromagnetic coil and a permanent magnet, and the electromagnetic coil and the permanent magnet cooperate to generate magnetic force to drive the extension and contraction of the secondary display screen 220 .
  • the driving mechanism may be an electrostrictive material piece 400, and the electrostrictive material piece 400 is switched between the power-on state and the power-off state, so as to drive the secondary display screen 220 between the first state and the second state. switch between the two states.
  • the expansion and contraction of the secondary display screen 220 is driven by the property that the electrostrictive material piece 400 can stretch under the condition of electrification, so as to realize the switching of the state of the secondary display screen 220 .
  • the structure of the electrostrictive material part 400 is relatively compact, the adjustment accuracy is higher, the transmission loss is smaller, the response is faster, and high-precision stepless adjustment can be realized.
  • the electronic device further includes a circuit board 500 , and the electrostrictive material piece 400 can be electrically connected with the circuit board 500 , so as to provide power and control to the electrostrictive material piece 400 .
  • the circuit board 500 may be a flexible circuit board.
  • one end of the secondary display screen 220 can be connected to the housing 100, and the other end of the secondary display screen 220 can be connected to the electrostrictive material piece 400.
  • the electrostrictive material piece 400 drives the secondary display screen 220, so that the secondary display screen 220 is unfolded and switched to the first state.
  • the electrostrictive material piece 400 compresses the secondary display screen 220, so that the secondary display screen 220 switches to the second state.
  • this connection structure makes the electrostrictive material piece 400 and the secondary display screen 220 need to occupy a large space.
  • the circuit board 500 can have two installation parts 510, and the two installation parts 510 can have a light-transmitting gap in the direction perpendicular to the stretching direction of the electrostrictive material piece 400 , the light-transmitting gap is opposite to the light-transmitting area 211, and the number of electrostrictive material pieces 400 can also be two, and the two electrostrictive material pieces 400 correspond to each other and are movably arranged on the two mounting parts 510.
  • the length of the portion 510 is greater than the length of the piece of electrostrictive material 400 in the stretched state.
  • the portions of the secondary display screen 220 adjacent to the two side edges are respectively connected to two electrostrictive material pieces 400 .
  • the two electrostrictive material pieces 400 respectively drive the edges on both sides of the secondary display screen 220 to move, so that the force on the secondary display screen 220 can be uniform, and then the two sides of the secondary display screen 220 can be expanded and contracted synchronously. In order to avoid the deviation of the stretching direction of the secondary display screen 220 due to uneven force on the secondary display screen 220 , thereby avoiding unnecessary interference.
  • sub-display screen 220 and the electrostrictive material piece 400 of this connection structure occupy less space as a whole, which can make the structure of the electronic device more compact when the display module is installed in the electronic device.
  • the electrostrictive material piece 400 can be movably arranged on the installation part 510.
  • the installation part 510 can be provided with a bar-shaped groove, and the electrostrictive material piece 400 is placed in the bar-shaped groove Inside, the length extension direction of the strip-shaped groove is consistent with the expansion and contraction direction of the electrostrictive material piece 400, and the length of the strip-shaped groove is greater than or equal to the length of the electrostrictive material piece 400 in the stretched state, so that the electrostrictive material 400 pieces retract smoothly.
  • the electrostrictive material piece 400 can be movably sleeved on the installation part 510. Compared with the way of setting a bar-shaped groove, this connection makes the electrostrictive material piece 400 and the installation part 510 The assembly stability of the part 510 is better.
  • the secondary display screen 220 may include a light-transmitting base 221 and display pixels 222 disposed on the light-transmitting base 221.
  • the secondary display screen 220 is an elastic screen, so the secondary display screen 220 can be in a planar structure and a bending Switching between structures realizes switching of the secondary display screen 220 between the first state and the second state.
  • the secondary display screen 220 When the secondary display screen 220 is in the first state, the secondary display screen 220 may be a planar structure, and the display pixels 222 are located on the surface of the planar structure facing the light-transmitting region 211. At this time The area of the surface of the sub-display 220 facing the light-transmitting region 211 is larger, so that the density of display pixels 222 is lower and the light transmittance is higher, so that the pixel density of the sub-display 220 is the first density.
  • the secondary display screen 220 When the secondary display screen 220 is in the second state, the secondary display screen 220 may be a bent structure.
  • the secondary display screen 220 includes planes 220a and bent surfaces 220b that are distributed alternately, and the plane 220a faces the light-transmitting region 211, and the display pixels 222 are located on the surface of the plane 220a facing the light-transmitting region 211.
  • the area of the plane 220a is relatively small, so that the density of the display pixels 222 on the plane 220a is relatively high, and the light transmittance is low. , so that the pixel density of the secondary display screen 220 is the second density.
  • the display pixels 222 are always located on the surface of the sub-display 220 facing the light-transmitting area 211, and the sub-display 220 can be changed by switching the sub-display 220 between the flat state and the bent state.
  • the area of the surface facing the light-transmitting region 211 further changes the pixel density of the secondary display screen 220 .
  • the embodiments of the present application further disclose an electronic device.
  • the disclosed electronic device includes a housing 100 and optical components.
  • the casing 100 provides an installation base for some functional devices of the electronic device, for example, the main display screen 210 and optical components.
  • the optical component may be a camera 300 or a light sensor.
  • the main display screen 210 is arranged on the casing 100, and the main display screen 210 and the casing 100 form an inner cavity of the device, and the optical components and the driving mechanism are arranged in the inner cavity of the device, so as to realize the protection of the optical components and the driving mechanism, Moreover, the light entrance area of the optical component is opposite to the light transmission area 211 , so that light can pass through the light transmission area 211 and enter the light entrance area of the optical component, thereby realizing the corresponding function of the optical component.
  • the lens of the camera 300 is opposite to the light-transmitting area 211 , so that light can pass through the light-transmitting area 211 and enter the lens, thereby realizing the shooting function of the camera 300 .
  • the secondary display screen 220 may be disposed between the light-transmitting area 211 and the optical components.
  • the state of the secondary display screen 220 is switched according to the working state of the optical components.
  • the driving mechanism drives the secondary display screen 220 to switch to the first state, so that the The light transmittance of the area opposite to the light-transmitting area 211 of the screen 220 is relatively high, so as to ensure that enough light can enter the optical components, thereby ensuring that the optical components can better realize corresponding functions;
  • the driving mechanism drives the secondary display screen 220 to switch to the second state, so that the pixel density of the secondary display screen 220 is relatively high, so that the display images in each area of the display module are consistent, so that the overall display module The display effect is better, thereby improving the user experience.
  • the secondary display screen 220 is opposite to the light-transmitting area 211
  • the light-entry area of the optical component is opposite to the light-transmitting area 211
  • the light enters the optical component through the light-transmitting area 211 and the secondary display screen 220 in sequence
  • the area of the secondary display screen 220 opposite to the light-transmitting area 211 is located between the main display screen 210 and the optical components, in order to prevent the secondary display screen 220 from being between the first state and the second state Touch the main display screen 210 or the optical components during the switching process, causing friction or damage. space.
  • the electronic device may further include a support structure, and the secondary display screen 220 may be supported on the casing 100 or the main display screen 210 through the support structure, thereby ensuring the assembly stability and position of the secondary display screen 220 stability.
  • the casing 100 may include a bottom case 110, the bottom case 110 may be disposed opposite to the main display screen 210, and the optical components may be fixedly arranged on the bottom case 110.
  • the optical components may be fixed to the bottom case 110 through connecting members such as screws.
  • the electronic device can also include two support bases 610. In the telescopic direction of the secondary display screen 220, the two support bases 610 can be respectively connected to two ends of the secondary display screen 220, and the two support bases 610 are far away from the ends of the secondary display screen 220.
  • Both parts can be movably connected to the bottom case 110, and during the switching process of the secondary display screen 220 between the first state and the second state, the two support bases 610 can expand and contract relative to the bottom case 110 on the secondary display screen 220 The direction moves relative to each other.
  • the sub-display 220 is connected to the housing 100 through the support base 610 to enhance the connection stability between the sub-display 220 and the housing 100 and prevent the sub-display 220 from generating unplanned problems in the electronic device. The movement affects the normal use of the secondary display screen 220 .
  • the two support seats 610 can be directly connected to the two ends of the auxiliary display screen 220 by bonding or other methods.
  • the two support seats 610 can also be connected by bonding or the like. respectively connected to the two ends of the electrostrictive material piece 400, and further, a step can also be provided on the support base 610, and the end of the electrostrictive material piece 400 can be connected to the step by bonding or other means, so that, The expansion and contraction of the electrostrictive material piece 400 can drive the support seat 610 to move.
  • the support base 610 can be set as a retractable structure, and the support base 610 can be The optical components expand and contract in the light incident direction, thereby changing the distance between the secondary display screen 220, the optical components and the main display screen 210, so that the optical components can realize corresponding functions.
  • the support base 610 drives the sub-display 220 away from the optical components, thereby allowing a larger space between the sub-display 220 and the optical components, so that the optical components can realize corresponding functions , such as to enable the camera 300 to perform anti-shake movement; when the optical components are not working, the support base 610 shrinks to drive the secondary display screen 220 away from the main display screen 210, thereby preventing the electronic device from falling due to the support base 610 and the main display screen 210.
  • the distance between the main display screens 210 is too small to break the main display screens 210 .
  • the bottom shell 110 can be fixedly provided with a guide rail 700, the support base 610 can be provided with a guide groove, and the guide groove and the guide rail 700 can be slidably matched, and the support base 610 can be movably arranged on the set via the guide rail 700.
  • the guide rail 700 may be fixed to the bottom case 110 through a connecting piece such as a screw.
  • the moving path of the support base 610 is constrained by the guide rail 700 to prevent the support base 610 from colliding with other functional devices of the electronic device during movement, thereby causing damage to the functional devices of the electronic device.
  • the two support seats 610 can be slidably matched with the same guide rail 700 , or can be slidably matched with the two guide rails 700 respectively, that is to say, the two support seats 610 correspond to one guide rail 700 .
  • the two support bases 610 are slidingly fitted with the two guide rails 700 respectively, there is a positioning space between the guide rails 700 corresponding to each of the two support bases 610 , and the optical components are located in the positioning space.
  • the guide rail 700 can also play a role of assisting in positioning the optical components.
  • the electronic device may further include a bracket 620, the bracket 620 may be connected to the main display screen 210, the driving mechanism may be supported on the bracket 620, and the driving mechanism may expand and contract relative to the bracket 620 on the secondary display screen 220 direction to move.
  • the driving mechanism can be the electrostrictive material piece 400 , that is to say, the electrostrictive material piece 400 can be supported on the bracket 620 .
  • this design scheme needs to occupy less space, making the structure of the electronic device more compact.
  • bracket 620 There may be various structures of the bracket 620, and the specific structure of the bracket 620 is not limited herein.
  • the embodiment of the present application discloses a specific structure of the bracket 620 .
  • the bracket 620 includes a connected first support portion 621 and a second support portion 622 , and the plane where the first support portion 621 is located intersects the plane where the second support portion 622 is located.
  • the plane where the first support part 621 is located and the plane where the second support part 622 is located may be perpendicular to each other.
  • the first supporting part 621 may be provided with a rolling body 800 , the driving mechanism is supported on the first supporting part 621 through the rolling body 800 , and the driving mechanism is rollingly matched with the rolling body 800 , and the second supporting part 622 is connected to the main display screen 210 .
  • the rolling fit between the driving mechanism and the rolling body 800 can reduce the friction between the bracket 620 and the driving mechanism, prevent the wear of the bracket 620 and the driving mechanism due to long-term mutual friction, and increase the service life of the driving mechanism.
  • the rolling body 800 may be a ball, and the surface of the first support portion 621 facing the main display screen 210 may be provided with a groove, and the ball may be rotatably arranged in the groove, and the ball protrudes toward the direction of the main display screen 210 On the first supporting portion 621 , the protruding portion of the ball is in rolling fit with the driving mechanism.
  • the driving mechanism can directly contact and cooperate with the rolling body 800 to realize the rolling cooperation between the two.
  • the surface of the driving mechanism facing the rolling body 800 may also be provided with a receiving groove, and the part of the rolling body 800 protruding from the bracket 620 may extend into the receiving groove.
  • the accommodating groove on the driving mechanism and the rolling body 800 can also realize the limiting and guiding effect on the driving mechanism, preventing the driving mechanism from detaching from the bracket 620, and in this case, the driving mechanism is sacrificed.
  • a part of the structure forms a receiving groove, and the part of the rolling body 800 protruding from the bracket 620 extends into the receiving groove, which can also reduce the stacking height of the driving mechanism and the bracket 620, thereby reducing the thickness of the electronic device.
  • the surface of the second support portion 622 facing the driving mechanism is the first inner wall 6221
  • the surface of the driving mechanism facing the second supporting portion 622 is the first side 410
  • the limit fit is in the direction perpendicular to the telescopic direction of the auxiliary display screen 220 .
  • the first inner side wall 6221 acts as a limit to the movement of the driving mechanism, preventing the movement of the driving mechanism from shifting, causing unnecessary interference, and also preventing the driving mechanism from detaching from the bracket 620 .
  • the bracket 620 may further include a third support portion 623, the third support portion 623 is connected to the second support portion 622, and the plane where the third support portion 623 is located intersects the plane where the second support portion 622 is located , the third supporting portion 623 may have a connecting surface 6231, the connecting surface 6231 may be arranged parallel to the main display screen 210, and the connecting surface 6231 may be connected to the main display screen 210, so that the second supporting portion 622 is connected to the main display screen 210 through the connecting surface 6231.
  • Main display screen 210 .
  • the connection surface 6231 may be fixedly connected to the main display screen 210 by means of bonding or the like.
  • the bracket 620 is connected to the main display screen 210 through the connection surface 6231, which can increase the contact area between the bracket 620 and the main display screen 210, thereby enhancing the connection stability between the bracket 620 and the main display screen 210, and can also reduce the Assembly difficulty.
  • the electronic device may further include a light-transmitting cover 900 covering the main display 210 and protecting the main display 210 .
  • the light-transmitting cover plate 900 may be a glass cover plate, or a polymer resin cover plate.
  • An adhesive layer 1000 may also be provided between the light-transmitting cover 900 and the main display screen 210 , so that the light-transmitting cover 900 and the main display screen 210 can be connected through the adhesive layer 1000 .
  • the adhesive layer 1000 may use OCA glue, of course, the adhesive layer 1000 may also use other types of glue, which is not limited herein.
  • the electronic device may further include a thermally conductive tape layer 1100 , and the thermally conductive tape layer 1100 may be bonded to the surface of the main display screen 210 facing away from the transparent cover plate 900 .
  • the thermally conductive tape layer 1100 may include a copper foil layer and a foam layer that are compositely connected.
  • the electronic device disclosed in the embodiment of the present application may be a smart phone, a tablet computer, an electronic reader or a wearable device.
  • the electronic device may also be other devices, which is not limited in this embodiment of the present application.

Abstract

一种显示模组及电子设备，显示模组包括主显示屏（210）、副显示屏（220）和驱动机构，主显示屏（210）包括透光区域（211），副显示屏（220）为柔性屏幕，且副显示屏（220）的至少部分与透光区域（211）相对，驱动机构与副显示屏（220）相连，驱动机构驱动副显示屏（220）在第一状态与第二状态之间切换，在副显示屏（220）处于第一状态的情况下，副显示屏（220）上的与透光区域（211）相对的区域的像素密度为第一密度，在副显示屏（220）处于第二状态的情况下，副显示屏（220）上的与透光区域（211）相对的区域的像素密度为第二密度，第二密度大于第一密度。

Description

显示模组及电子设备
相关申请的交叉引用
本申请主张在2021年08月23日在中国提交的中国专利申请No.202110970793.X的优先权，其全部内容通过引用包含于此。
技术领域
本申请属于通信设备技术领域，具体涉及一种显示模组及电子设备。
背景技术
随着用户对电子设备的屏占比的追求，全面屏电子设备迅速发展和普及，其中，有机发光二极管(Organic Light-Emitting Diode，OLED)屏等全面屏利用其半透明的特性实现了真正的全面屏，广受用户的喜爱。
电子设备中配置有摄像头或光传感器等光学元器件，光线透过全面屏射入光学元器件，使得光学元器件实现相应的功能。由于全面屏的光线透过率比较低，导致部分光线无法透过全面屏，进而导致光学元器件不能较好的实现相应的功能。相关技术中，通过降低全面屏的与光学元器件相对的区域的像素密度来提高此区域的光线透过率。但是，全面屏的像素密度较小的区域的屏幕分辨率较低，全面屏的像素密度较大的区域的屏幕分辨率较高，使得两个区域显示的画面不一致，存在明显的割裂感，导致全面屏的显示效果较差，影响用户的使用体验。
发明内容
本申请实施例的目的是提供一种显示模组及电子设备，能够解决全面屏的像素不同的区域显示的画面不一致，导致显示效果差的问题。
为了解决上述技术问题，本申请是这样实现的：
第一方面，本发明公开了一种显示模组，包括主显示屏、副显示屏和驱动机构，其中：
所述主显示屏包括透光区域，所述副显示屏为柔性屏幕，且所述副显示屏的至少部分与所述透光区域相对，所述驱动机构与所述副显示屏相连，所述驱动机构驱动所述副显示屏在第一状态与第二状态之间切换；
在所述副显示屏处于所述第一状态的情况下，所述副显示屏上的与所述透光区域相对的区域的像素密度为第一密度；
在所述副显示屏处于所述第二状态的情况下，所述副显示屏上的与所述透光区域相对的区域的像素密度为第二密度，所述第二密度大于所述第一密度。
第二方面，本发明还公开了一种电子设备，包括上文中的显示模组。
在本申请实施例中，驱动机构可驱动副显示屏在第一状态和第二状态之间切换，在副显示屏切换至第一状态的情况下，副显示屏上的与透光区域相对的区域的像素密度较低、透光率较高，显示模组的不同区域的分辨率不一致，显示模组的整体显示效果较差，但可以使得较多的光线穿过显示模组。在副显示屏切换至第二状态的情况下，副显示屏上的与透光区域相对的区域像素密度较高、透光率较低，使得显示模组各区域的分辨率一致，进而使得显示模组的整体显示效果较好，但能够穿过显示模组的光线较少。由此可见，本申请所公开的显示模组能够解决全面屏的像素不同的区域显示的画面不一致，导致显示效果差的问题。同时，本申请所公开的显示模组还能够保证足够的光线穿过显示模组。
附图说明
图1为本申请实施例公开的包括支撑座的电子设备的爆炸图；
图2为本申请实施例公开的处于第二状态的副显示屏的结构示意图；
图3为图2中的A处放大图；
图4为本申请实施例公开的处于第二状态的副显示屏的光线透过图；
图5为本申请实施例公开的处于第一状态的副显示屏的结构示意图；
图6为图5中的B处放大图；
图7为本申请实施例公开的处于第一状态的副显示屏的光线透过图；
图8为本申请实施例公开的支撑座、电致伸缩材料件和处于第二状态的副显示屏的装配图；
图9为图8的爆炸图；
图10为本申请实施例公开的支撑座、电致伸缩材料件和处于第一状态的副显示屏的装配图；
图11为图10的爆炸图；
图12为本申请实施例公开的包括支架的电子设备的爆炸图；
图13是为本申请实施例公开的支架、电致伸缩材料件和处于第二状态的副显示屏的装配图；
图14为图13的爆炸图；
图15为本申请实施例公开的支架、电致伸缩材料件和处于第一状态的副显示屏的结构示意图；
图16为图15的爆炸图；
图17为本申请实施例公开的支架的结构示意图；
图18为本申请实施例公开的主显示屏、支架和处于第二状态的副显示屏的结构示意图；
图19为本申请实施例公开的主显示屏、支架和处于第一状态的副显示屏的结构示意图。
附图标记说明：
100-壳体、110-底壳、
210-主显示屏、211-透光区域、220-副显示屏、221-透光基部、222-显示像素、220a-平面、220b-弯折面、
300-摄像头、
400-电致伸缩材料件、410-第一侧面、
500-电路板、510-安装部、
610-支撑座、620-支架、621-第一支撑部、622-第二支撑部、6221-第一内侧壁、623-第三支撑部、6231-连接面、
700-导轨、
800-滚动体、
900-透光盖板、
1000-粘接层、
1100-导热胶带层。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施，且“第一”、“第二”等所区分的对象通常为一类，并不限定对象的个数，例如第一对象可以是一个，也可以是多个。
请参考图1至图19，本申请实施例公开一种显示模组，所公开的显示模组包括主显示屏210、副显示屏220和驱动机构。
主显示屏210包括透光区域211。透光区域211可以为设于主显示屏210上的透光通孔，也可以为设于主显示屏210上的未开孔、且能够透光的区域。主显示屏210可以为OLED显示屏。
副显示屏220为柔性屏幕，且副显示屏220的至少部分与透光区域211相对。柔性屏幕可以为柔性OLED显示屏。可选的，副显示屏220可以与主显示屏210平行设置。
驱动机构与副显示屏220相连，利用柔性屏幕可弯折、可卷曲的特性，驱动机构可驱动副显示屏220在第一状态和第二状态之间切换。可选的，第一状态可以为展开状态，第二状态可以为收缩状态、卷曲状态或折叠状态。
在副显示屏220处于第一状态的情况下，副显示屏220上的与透光区域211相对的区域的像素密度为第一密度，副显示屏220上的与透光区域211相对的区域的透光率为第一透光率。此时，副显示屏220上的与透光区域211相对的区域的像素密度较低、透光率较高，显示模组的对应于透光区域211的区域与其他区域的像素密度不一致，使得显示模组的对应于透光区域211的区域与其他区域显示的画面不一致，导致显示模组的显示效果较差，但显示模组的对应于透光区域211的区域的透光率较高，可以使足够的光线穿过显示模组。
在副显示屏220处于第二状态的情况下，副显示屏220上的与透光区域211相对的区域的像素密度为第二密度，第二密度大于第一密度，副显示屏220上的与透光区域211相对的区域的透光率为第二透光率，第二透光率小于第一透光率。此时，副显示屏220上的与透光区域211相对的区域的光线透过率较低、像素密度较高，在此种情况下，副显示屏220可以填补主显示屏210的透光区域211形成的空白或像素密度较低的部分，使得显示模组上的对应于透光区域211的区域与其他区域的像素密度保持一致，进而使得显示模组上的对应于透光区域211的区域与其他区域的画面保持一致，最终使得显示模组的显示效果较好，提升用户的使用体验。
在本申请实施例中，驱动机构可驱动副显示屏在第一状态和第二状态之间切换，在副显示屏切换至第一状态的情况下，副显示屏上的与透光区域相对的区域的像素密度较低、透光率较高，显示模组的不同区域的分辨率不一 致，显示模组的整体显示效果较差，但可以使得较多的光线穿过显示模组。在副显示屏切换至第二状态的情况下，副显示屏上的与透光区域相对的区域像素密度较高、透光率较低，使得显示模组各区域的分辨率一致，进而使得显示模组的整体显示效果较好，但能够穿过显示模组的光线较少。由此可见，本申请所公开的显示模组能够解决全面屏的像素不同的区域显示的画面不一致，导致显示效果差的问题。同时，本申请所公开的显示模组还能够保证足够的光线穿过显示模组。
上述方案中，通过驱动机构驱动副显示屏220在第一状态和第二状态之间切换，驱动机构可以有多种，例如，驱动机构可以为记忆合金驱动器或丝杠机构，驱动机构还可以为电磁感应结构件，例如，驱动机构可以包括电磁线圈和永磁体，通过电磁线圈和永磁体相互配合产生磁力来驱动副显示屏220的伸缩。
当然，驱动机构还可以采用其他机构，例如液压伸缩件、气压伸缩件等，本申请实施例不限制驱动机构的具体种类。在一种可选的实施例中，驱动机构可以为电致伸缩材料件400，电致伸缩材料件400在通电状态和断电状态之间切换，以带动副显示屏220在第一状态和第二状态之间切换。此种情况下，利用电致伸缩材料件400在通电的情况下能够伸长的特性来驱动副显示屏220的伸缩，以实现副显示屏220的状态的切换。
此外，相对于上述的丝杠机构等机械驱动机构，电致伸缩材料件400的结构相对紧凑，调节精度更高，传动损耗更小，响应更快，可实现高精度的无级调节。
电子设备还包括电路板500，电致伸缩材料件400可以与电路板500电连接，从而对电致伸缩材料件400进行供电和控制。电路板500可以为柔性电路板。
在电致伸缩材料件400和副显示屏220的伸缩方向上，副显示屏220的一端可以连接于壳体100，副显示屏220的另一端可以连接于电致伸缩材料 件400，在电致伸缩材料件400通电伸长的过程中，电致伸缩材料件400驱动副显示屏220，使副显示屏220展开，切换至第一状态，在电致伸缩材料件400断电回缩的过程中，电致伸缩材料件400压缩副显示屏220，使副显示屏220切换至第二状态。但是，此种连接结构使得电致伸缩材料件400和副显示屏220需要占用较大空间。
为了解决上述问题，在本申请公开的实施例中，电路板500可以具有两个安装部510，且两个安装部510可以在垂直于电致伸缩材料件400伸缩方向的方向上具有透光间隙，透光间隙与透光区域211相对，电致伸缩材料件400的数量也可以为两个，两个电致伸缩材料件400一一对应、且可活动地设置于两个安装部510，安装部510的长度大于处于伸长状态的电致伸缩材料件400的长度。在垂直于副显示屏220伸缩方向的方向上，副显示屏220邻近两侧边缘的部分分别连接于两个电致伸缩材料件400。此种情况下，两个电致伸缩材料件400分别带动副显示屏220的两侧边缘进行移动，能够使得副显示屏220受力均匀，进而使得副显示屏220的两侧同步展开和同步收缩，避免由于副显示屏220受力不均，导致副显示屏220的伸缩方向发生偏移，进而能够避免不必要的干涉。
此外，此种连接结构的副显示屏220和电致伸缩材料件400二者整体占用的空间较小，在将显示模组安装于电子设备的情况下，能够使得电子设备的结构更加紧凑。
上述方案中，电致伸缩材料件400可活动地设置于安装部510，在一种可选的实施例中，安装部510可以设有条形槽，电致伸缩材料件400放置于条形槽内，条形槽的长度延伸方向与电致伸缩材料件400的伸缩方向一致，且条形槽的长度大于或等于处于伸长状态的电致伸缩材料件400的长度，以使电致伸缩材料件400顺利伸缩。
在另一种可选的实施例中，电致伸缩材料件400可以可活动地套设于安装部510，相对于设置条形槽的方式，此种连接方式使得电致伸缩材料件400 与安装部510的装配稳定性更好。
在本申请实施例中，副显示屏220可以包括透光基部221和设置在透光基部221上的显示像素222，副显示屏220为弹性屏幕，所以副显示屏220可以在平面结构和弯折结构之间切换，实现副显示屏220在第一状态和第二状态之间的切换。
具体的，请再次参考图5至图7，在副显示屏220处于第一状态的情况下，副显示屏220可以为平面结构，显示像素222位于平面结构面向透光区域211的表面，此时，副显示屏220的面向透光区域211的表面的面积较大，使得显示像素222的密度较小，透光率较高，进而使得副显示屏220的像素密度为第一密度。
请再次参考图2至图4，在副显示屏220处于第二状态的情况下，副显示屏220可以为弯折结构，副显示屏220包括交错分布的平面220a和弯折面220b，且平面220a面向透光区域211，显示像素222位于平面220a面向透光区域211的表面上，此时，平面220a的面积比较小，使得平面220a上的显示像素222的密度较大，透光率较低，进而使得副显示屏220的像素密度为第二密度。
在本申请实施例中，显示像素222始终位于副显示屏220的面向透光区域211的表面上，通过副显示屏220在平面状态和弯折状态之间的切换，来改变副显示屏220的面向透光区域211的表面的面积，进而改变副显示屏220的像素密度。
基于本申请的上述实施例的显示模组，本申请实施例还公开一种电子设备。所公开的电子设备包括壳体100和光学元器件。
壳体100为电子设备的部分功能器件提供安装基础，例如，主显示屏210和光学元器件。在本申请实施例中，光学元器件可以为摄像头300或光传感器。
主显示屏210设于壳体100上，且主显示屏210与壳体100形成设备内 腔，光学元器件和驱动机构设于设备内腔中，以实现对光学元器件和驱动机构的防护，且光学元器件的进光区与透光区域211相对，以使光线能够穿过透光区域211射入光学元器件的进光区上，从而实现光学元器件的相应的功能。例如，在光学元器件为摄像头300的情况下，摄像头300的镜头与透光区域211相对，以使光线能够穿过透光区域211射入镜头上，从而实现摄像头300的拍摄功能。可选的，副显示屏220可以设于透光区域211和光学元器件之间。
在本申请实施例中，根据光学元器件的工作状态来切换副显示屏220的状态，在光学元器件处于工作状态的情况下，驱动机构驱动副显示屏220切换至第一状态，使得副显示屏220的与透光区域211相对的区域的光线透过率较高，从而保证足够的光线能够射入光学元器件，进而保证光学元器件能够较好的实现相应的功能；在光学元器件处于非工作状态的情况下，驱动机构驱动副显示屏220切换至第二状态，使得副显示屏220的像素密度较高，使得显示模组的各区域的显示画面一致，从而使得显示模组的整体显示效果较好，进而提升用户的使用体验。
上述方案中，副显示屏220的至少部分与透光区域211相对，光学元器件的进光区与透光区域211相对，且光线依次经过透光区域211和副显示屏220射入光学元器件的进光区，也就是说，副显示屏220的与透光区域211相对的区域位于主显示屏210和光学元器件之间，为了避免副显示屏220在第一状态和第二状态之间切换的过程中触碰到主显示屏210或光学元器件，造成摩擦或碰损，在光学元器件的进光方向上，主显示屏210和光学元器件与副显示屏220之间均具有安全空间。
为了保证副显示屏220的装配稳定性，电子设备还可以包括支撑结构，副显示屏220可以通过支撑结构支撑于壳体100或主显示屏210，进而保证副显示屏220的装配稳定性和位置稳定性。
在一种可选的方案中，壳体100可以包括底壳110，底壳110可以和主 显示屏210相对设置，光学元器件可以固定设于底壳110。可选的，光学元器件可以通过螺钉等连接件固定设于底壳110。电子设备还可以包括两个支撑座610，在副显示屏220的伸缩方向上，两个支撑座610可以分别连接于副显示屏220的两端，两个支撑座610远离副显示屏220的端部可以均可活动地连接于底壳110，在副显示屏220在第一状态和第二状态之间切换的过程中，两个支撑座610可相对于底壳110在副显示屏220的伸缩方向相对移动。此种情况下，通过支撑座610将副显示屏220连接于壳体100上，增强副显示屏220和壳体100之间的连接稳定性，避免副显示屏220在电子设备内产生计划外的移动，影响副显示屏220的正常使用。
上述方案中，在副显示屏220的伸缩方向上，两个支撑座610可以通过粘接等方式直接分别连接于副显示屏220的两端，当然，两个支撑座610也可以通过粘接等方式分别连接在电致伸缩材料件400的两端，进一步的，支撑座610上还可以设有台阶，电致伸缩材料件400的端部可以通过粘接等方式连接于台阶，这样一来，电致伸缩材料件400伸缩可带动支撑座610移动。
我们知道，部分光学元器件的部分功能需要具有一定的实施空间，例如，摄像头300的防抖运动，因此，在进一步的技术方案中，支撑座610可以设为可伸缩结构，且支撑座610可在光学元器件的光线入射方向伸缩，从而改变副显示屏220与光学元器件和主显示屏210之间的距离，使得光学元器件可以实现相应的功能。
在支撑座610的伸长过程中，支撑座610带动副显示屏220远离光学元器件，进而使得副显示屏220和光学元器件之间具有较大的空间，使得光学元器件可以实现相应的功能，例如使得摄像头300可以进行防抖运动；在光学元器件处于未工作状态的情况下，支撑座610收缩带动副显示屏220远离主显示屏210，进而避免电子设备跌落时，由于支撑座610与主显示屏210之间的距离太小而磕碎主显示屏210。
为了提高支撑座610的移动精度，底壳110上可以固定设有导轨700， 支撑座610可以设有导槽，导槽和导轨700可以滑动配合，支撑座610通过导轨700可活动地设于所述底壳110。可选的，导轨700可以通过螺钉等连接件固定设于底壳110。此种情况下，通过导轨700约束支撑座610的移动路径，避免支撑座610在移动过程中与电子设备的其他功能器件发生碰撞，进而导致电子设备的功能器件受损。
需要说明的是，两个支撑座610可以与同一个导轨700滑动配合，也可以与两个导轨700分别滑动配合，也就是说，两个支撑座610分别对应有一个导轨700。在两个支撑座610与两个导轨700分别滑动配合的情况下，两个支撑座610各自所对应的导轨700之间具有定位空间，光学元器件位于定位空间内。此种情况下，导轨700还可以起到辅助定位光学元器件的作用。
在一种可选的方案中，电子设备还可以包括支架620，支架620可以连接于主显示屏210，驱动机构可以支撑于支架620，且驱动机构可相对于支架620在副显示屏220的伸缩方向移动。驱动机构可以为电致伸缩材料件400，也就是说，电致伸缩材料件400可以支撑于支架620。相对于通过支撑座610支撑副显示屏220的设计方案，本设计方案需要占用的空间较小，使得电子设备的结构更加紧凑。
支架620的结构可以有多种，本文对支架620的具体结构不作限制。本申请实施例公开一种支架620的具体结构。具体的，支架620包括相连接的第一支撑部621和第二支撑部622，且第一支撑部621所在的平面和第二支撑部622所在的平面相交。可选的，第一支撑部621所在的平面和第二支撑部622所在的平面可以相互垂直。第一支撑部621上可以设有滚动体800，驱动机构通过滚动体800支撑于第一支撑部621，且驱动机构与滚动体800滚动配合，第二支撑部622连接于主显示屏210。此种情况下，驱动机构与滚动体800滚动配合可以减小支架620和驱动机构之间的摩擦，防止支架620和驱动机构由于长时间相互摩擦导致的磨损，进而增长驱动机构的使用寿命。
具体的，滚动体800可以为滚珠，第一支撑部621面向主显示屏210的 表面可以设有凹槽，滚珠可以可滚动地设于凹槽内，且滚珠朝向主显示屏210的方向凸出于第一支撑部621，滚珠的凸出部分与驱动机构滚动配合。
驱动机构可以直接与滚动体800接触配合，以实现二者的滚动配合。当然，驱动机构面向滚动体800的表面也可以设有容纳凹槽，滚动体800凸出于支架620的部分可以伸入容纳凹槽内。此种情况下，驱动机构上的容纳凹槽和滚动体800相互配合还可以实现对驱动机构的限位导向作用，防止驱动机构从支架620上脱出，且在此种情况下，驱动机构牺牲掉自身的一部分结构形成容纳凹槽，滚动体800凸出于支架620的部分伸入容纳凹槽内，还可以减小驱动机构和支架620的堆叠高度，进而减小电子设备的厚度。
在进一步的技术方案中，第二支撑部622朝向驱动机构的表面为第一内侧壁6221，驱动机构朝向第二支撑部622的表面为第一侧面410，第一内侧壁6221和第一侧面410在垂直于副显示屏220伸缩方向的方向限位配合。此种情况下，第一内侧壁6221对驱动机构的移动起限位作用，防止驱动机构的移动发生偏移，产生不必要的干涉，也防止驱动机构从支架620上脱出。
在进一步的技术方案中，支架620还可以包括第三支撑部623，第三支撑部623与第二支撑部622连接，且第三支撑部623所在的平面和第二支撑部622所在的平面相交，第三支撑部623可以具有连接面6231，连接面6231可以与主显示屏210平行设置，且连接面6231可以与主显示屏210相连接，以使第二支撑部622通过连接面6231连接于主显示屏210。可选的，连接面6231可以通过粘接等方式固定连接于主显示屏210。此种情况下，支架620通过连接面6231连接于主显示屏210，可以增大支架620与主显示屏210的接触面积，进而增强支架620与主显示屏210的连接稳定性，同时还可以降低装配难度。
在进一步的技术方案中，电子设备还可以包括透光盖板900，透光盖板900覆盖在主显示屏210上，能够起到保护主显示屏210的作用。可选的，透光盖板900可以为玻璃盖板，也可以为高分子树脂盖板。透光盖板900和 主显示屏210之间还可以设有粘接层1000，使得透光盖板900和主显示屏210可以通过粘接层1000相连接。可选的，粘接层1000可以采用OCA胶，当然，粘接层1000还可以采用其他种类的胶水，本文对此不作限制。
电子设备还可以包括导热胶带层1100，导热胶带层1100可以粘接于主显示屏210背向透光盖板900的一侧的表面。可选的，导热胶带层1100可以包括复合连接的铜箔层和泡棉层。
本申请实施例公开的电子设备可以为智能手机、平板电脑、电子阅读器或可穿戴设备。当然，该电子设备也可以是其他设备，本申请实施例对此不作限制。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (13)

  1. 一种显示模组，包括主显示屏(210)、副显示屏(220)和驱动机构，其中：
    所述主显示屏(210)包括透光区域(211)，所述副显示屏(220)为柔性屏幕，且所述副显示屏(220)的至少部分与所述透光区域(211)相对，所述驱动机构与所述副显示屏(220)相连，所述驱动机构驱动所述副显示屏(220)在第一状态与第二状态之间切换；
    在所述副显示屏(220)处于所述第一状态的情况下，所述副显示屏(220)上的与所述透光区域(211)相对的区域的像素密度为第一密度；
    在所述副显示屏(220)处于所述第二状态的情况下，所述副显示屏(220)上的与所述透光区域(211)相对的区域的像素密度为第二密度，所述第二密度大于所述第一密度。
  2. 根据权利要求1所述的显示模组，其中，所述驱动机构为电致伸缩材料件(400)，所述电致伸缩材料件(400)在通电状态和断电状态之间切换，以带动所述副显示屏(220)在所述第一状态和所述第二状态之间切换。
  3. 根据权利要求2所述的显示模组，其中，所述显示模组还包括电路板(500)，所述电致伸缩材料件(400)与所述电路板(500)电连接，所述电路板(500)具有两个安装部(510)，且两个所述安装部(510)在垂直于所述电致伸缩材料件(400)伸缩方向的方向上具有透光间隙，所述电致伸缩材料件(400)的数量为两个，两个所述电致伸缩材料件(400)一一对应、且可活动地设置于两个所述安装部(510)，所述副显示屏(220)连接于两个所述电致伸缩材料件(400)。
  4. 根据权利要求1所述的显示模组，其中，所述副显示屏(220)包括透光基部(221)和设置在所述透光基部(221)上的显示像素(222)，其中：
    在所述副显示屏(220)处于所述第一状态的情况下，所述副显示屏(220)为平面结构，所述显示像素(222)位于所述平面结构面向所述透光区域(211)的表面上，以使所述副显示屏(220)的像素密度为第一密度；
    在所述副显示屏(220)处于所述第二状态的情况下，所述副显示屏(220)为弯折结构，所述弯折结构包括交错分布的平面(220a)和弯折面(220b)，且所述平面(220a)面向所述透光区域(211)，所述显示像素(222)位于所述平面(220a)面向所述透光区域(211)的表面上，以使所述副显示屏(220)的像素密度为第二密度。
  5. 一种电子设备，包括上述权利要求1至4中任一项所述的显示模组。
  6. 根据权利要求5所述的电子设备，其中，所述电子设备包括壳体(100)和光学元器件，所述主显示屏(210)设于所述壳体(100)上，且所述主显示屏(210)与所述壳体(100)形成设备内腔，所述光学元器件和所述驱动机构设于所述设备内腔中，且所述光学元器件的进光区与所述透光区域(211)相对。
  7. 根据权利要求6所述的电子设备，其中，所述壳体(100)包括底壳(110)，所述底壳(110)与所述主显示屏(210)相对设置，所述光学元器件固定设于所述底壳(110)，所述电子设备还包括两个支撑座(610)，在所述副显示屏(220)的伸缩方向上，两个所述支撑座(610)分别连接于所述副显示屏(220)的两端，两个所述支撑座(610)远离所述副显示屏(220)的端部均可活动地连接于所述底壳(110)，在所述副显示屏(220)在所述第一状态和所述第二状态之间切换的过程中，两个所述支撑座(610)可相对于所 述底壳(110)在所述副显示屏(220)的伸缩方向相对移动。
  8. 根据权利要求7所述的电子设备，其中，所述底壳(110)上固定设有导轨(700)，所述支撑座(610)设有导槽，所述导槽和所述导轨(700)滑动配合，所述支撑座(610)通过所述导轨(700)可活动地设于所述底壳(110)。
  9. 根据权利要求8所述的电子设备，其中，两个所述支撑座(610)各自所对应的所述导轨(700)之间具有定位空间，所述光学元器件位于所述定位空间内。
  10. 根据权利要求6所述的电子设备，其中，所述电子设备还包括支架(620)，所述支架(620)连接于所述主显示屏(210)，所述驱动机构支撑于所述支架(620)，且所述驱动机构可相对于所述支架(620)在所述副显示屏(220)的伸缩方向移动。
  11. 根据权利要求10所述的电子设备，其中，所述支架(620)包括相连接的第一支撑部(621)和第二支撑部(622)，且所述第一支撑部(621)所在的平面与所述第二支撑部(622)所在的平面相交，所述第一支撑部(621)上设有滚动体(800)，所述驱动机构通过所述滚动体(800)支撑于所述第一支撑部(621)，且所述驱动机构与所述滚动体(800)滚动配合，所述第二支撑部(622)连接于所述主显示屏(210)。
  12. 根据权利要求11所述的电子设备，其中，所述第二支撑部(622)朝向所述驱动机构的表面为第一内侧壁(6221)，所述驱动机构朝向所述第二支撑部(622)的表面为第一侧面(410)，所述第一内侧壁(6221)与所述第一侧面(410)在垂直于所述副显示屏(220)伸缩方向的方向限位配合。
  13. 根据权利要求11所述的电子设备，其中，所述支架(620)还包括 第三支撑部(623)，所述第三支撑部(623)与所述第二支撑部(622)连接，且所述第三支撑部(623)所在的平面与所述第二支撑部(622)所在的平面相交，所述第三支撑部(623)具有连接面(6231)，所述连接面(6231)与所述主显示屏(210)平行设置，且所述连接面(6231)固定设于所述主显示屏(210)，所述第二支撑部(622)通过所述连接面(6231)连接于所述主显示屏(210)。
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