Electronic device and control method thereof

Abstract

The invention relates to electronic equipment and a control method thereof. The electronic equipment comprises a transparent rear cover, and a supporting piece is arranged on the transparent rear cover; the flexible display screen is arranged on the supporting piece in a sliding manner, and the flexible display screen comprises a main screen and an auxiliary screen which are connected with each other; the plug-in touch control layer is arranged on the side, facing the flexible display screen, of the transparent rear cover, the touch control face of the plug-in touch control layer faces the transparent rear cover, and the plug-in touch control layer is connected with the flexible display screen so as to control display of the flexible display screen by touching the plug-in touch control layer; when the flexible display screen is in a curled state, the auxiliary screen is located between the main screen and the plug-in touch layer, and a moving gap is formed between the auxiliary screen and the plug-in touch layer; the flexible display screen slides relative to the supporting piece so that the flexible display screen can be in an unfolded state, and at least part of the auxiliary screen and the main screen are located on the same side. The electronic equipment can realize a double-sided display function, so that the functions of the electronic equipment are enriched, and the utilization rate of the flexible display screen is improved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to an electronic device and a control method thereof. Background Art

[0002] With the breakthrough and development of flexible OLED (Organic Light-Emitting Diode) screen technology, foldable and roll-up screen electronic products have entered people's vision and lives. Roll-up screen products are novel, with unique functions that break the convention, adding fun to use, bringing people unprecedented convenience and visual impact, and the future development prospects are very optimistic. However, the current roll-up OLED screen design mainly uses the front display mode, and the screen part that shrinks inside the whole machine does not display. The product functions are not novel enough and it is difficult to meet the needs of different users. Summary of the invention

[0003] The purpose of the present application is to provide an electronic device and a control method thereof, wherein the electronic device realizes a double-sided display function of the entire device and can meet the usage requirements of different users.

[0004] To this end, in a first aspect, an embodiment of the present application provides an electronic device, including:

[0005] A transparent back cover, on which a support member is disposed;

[0006] A flexible display screen, which is slidably disposed on the support member, and comprises a main screen and a secondary screen connected to each other;

[0007] An external touch layer is arranged on a side of the transparent back cover facing the flexible display screen, the touch surface of the external touch layer is arranged toward the transparent back cover, and the external touch layer is connected to the flexible display screen so as to control the display of the flexible display screen by touching the external touch layer;

[0008] When the flexible display screen is in a rolled-up state, the secondary screen is located between the main screen and the external touch layer, and a movable gap is provided between the secondary screen and the external touch layer; the flexible display screen slides relative to the supporting member so that the flexible display screen is in an unfolded state, and at least a portion of the secondary screen is located on the same side as the main screen.

[0009] In a possible implementation, it also includes a control mainboard arranged on the support member, the display signal line of the flexible display screen and the touch signal line of the flexible display screen are connected to the control mainboard through a first electrical connector, and the third touch signal line of the external touch layer is connected to the control mainboard through a second electrical connector.

[0010] In a possible implementation, the control mainboard identifies the detected signal of the third touch signal line of the external touch layer, and the control mainboard controls the signal transmission between the control mainboard and the second display signal line of the secondary screen according to the identification information.

[0011] In a possible implementation, a detection member is also provided on the support member, and the detection member is used to detect the position of the sub-screen. The detection member and the second touch signal line of the sub-screen are both connected to the control main board, and the control main board controls the on and off of the second touch signal line of the sub-screen according to the position of the sub-screen.

[0012] In a possible implementation, the control mainboard controls the on / off of the third touch signal line of the external touch layer according to the position of the secondary screen.

[0013] When the flexible display screen is in the unfolded state, the third touch signal line of the external touch layer is disconnected, the control main board identifies the detected signal of the second touch signal line of the secondary screen, and controls the signal transmission between the control main board and the second display signal line of the secondary screen according to the identification information;

[0014] When the flexible display screen is in a rolled-up state, the second touch signal line of the secondary screen is disconnected, the control main board identifies the signal of the third touch signal line of the external touch layer detected, and controls the signal transmission between the control main board and the second display signal line of the secondary screen according to the identification information.

[0015] In a possible implementation, when the flexible display screen is in a rolled-up state, the control main board controls the signal transmission between it and the second display signal line of the secondary screen, the second touch signal line of the secondary screen, and the third touch signal line of the external touch layer to be disconnected.

[0016] In a possible implementation, a scroll is rotatably provided on one side of the support, the auxiliary screen of the flexible display screen is curled along the outer wall of the scroll, and the rotation of the scroll drives the movement of the auxiliary screen.

[0017] In a possible implementation manner, the transparent back cover and the external touch layer are integrally formed.

[0018] In a second aspect, an embodiment of the present application provides a method for controlling an electronic device, the method comprising:

[0019] When the flexible display screen is in a rolled-up state, the second touch signal line of the secondary screen is controlled to be disconnected, the third touch signal line of the detected external touch layer is identified, and the display of the secondary screen is controlled according to the identification information.

[0020] In a possible implementation, when the flexible display screen is in an unfolded state, the third touch signal line of the external touch layer is controlled to be disconnected, the detected touch signal line of the flexible display screen is identified, and the display of the flexible display screen is controlled according to the identification information.

[0021] According to the electronic device and control method thereof provided by the embodiment of the present application, the secondary screen of the electronic device needs to be rolled up and unfolded during use, and the rolling up and unfolding of the secondary screen will move relative to the transparent back cover. The setting of the moving gap provides a space for the movement of the secondary screen, thereby ensuring the stability of the movement of the secondary screen and thus ensuring the reliability of the use of the electronic device with the scroll screen. When the screen is unfolded, the main screen and the secondary screen are connected to form a whole screen, which expands the display area and the display screen, so that when the screen is pulled open, there is more visible area; and by setting the back cover of the electronic device as a transparent back cover, when the secondary screen is rolled up, the display interface of the secondary screen can be displayed, and the main screen and the secondary screen can display the same screen or different screens, so that the electronic device can realize the function of double-sided display, thereby enriching the functions of the electronic device and improving the utilization rate of the flexible display screen.

[0022] By setting up an external touch layer and connecting the external touch layer to the flexible display screen, the display of the flexible display screen can be controlled by touching the external touch layer, thereby improving the stability of the touch function on the back of the electronic device, ensuring user use, and avoiding the problem of poor touch function of the electronic device with a scroll screen when the screen is rolled up. In addition, the external touch layer can also receive independent touch signals to achieve separate touch operation on the secondary screen. That is to say, when the screen is unfolded, the main screen and the secondary screen can be touched together. When the screen is rolled up, the main screen and the secondary screen can be touched separately, thereby further enriching the use functions of the electronic device and greatly improving the utilization rate of the flexible display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In addition, in the drawings, the same components are marked with the same reference numerals, and the drawings are not drawn according to the actual scale.

[0024] Figure 1 A schematic diagram of the overall structure of an electronic device provided in an embodiment of the present application is shown;

[0025] Figure 2 A schematic diagram showing a structure of a main screen and a secondary screen in an electronic device provided in an embodiment of the present application is shown;

[0026] Figure 3 A cross-sectional view of an electronic device provided by an embodiment of the present application is shown;

[0027] Figure 4 A schematic diagram showing the structure of an electronic device provided by an embodiment of the present application for displaying a scroll;

[0028] Figure 5 A top view of a flexible display screen in an electronic device provided by an embodiment of the present application in an unfolded state is shown;

[0029] Figure 6 A top view of a transparent back cover in an electronic device provided by an embodiment of the present application is shown;

[0030] Figure 7 A schematic diagram showing the structure of an electronic device provided by an embodiment of the present application for implementing a signal line of a flexible display screen;

[0031] Figure 8 A top view of an external touch layer in an electronic device provided by an embodiment of the present application is shown.

[0032] Description of reference numerals:

[0033] 100. Electronic equipment;

[0034] 10. Flexible display screen; 11. Main screen; 111. First display signal line; 112. First touch signal line; 12. Second screen; 121. Second display signal line; 122. Second touch signal line; 13. Display screen binding area;

[0035] 20. Transparent back cover; 21. Support member; 22. Control main board; 23. Scroll;

[0036] 30. External touch layer; 31. Third touch signal line; 32. External binding area;

[0037] 40. A first electrical connector; 50. A second electrical connector. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0039] First embodiment

[0040] like Figure 1-Figure 5 As shown, an embodiment of the present application provides an electronic device, including:

[0041] A transparent back cover 20, on which a support member 21 is disposed;

[0042] A flexible display screen 10, wherein the flexible display screen 10 is slidably disposed on the support member 21, and the flexible display screen 10 comprises a main screen 11 and a secondary screen 12 connected to each other;

[0043] The external touch layer 30 is disposed on a side of the transparent back cover 20 facing the flexible display screen 10, the touch surface of the external touch layer 30 is disposed toward the transparent back cover 20, and the external touch layer 30 is connected to the flexible display screen 10, so as to control the display of the flexible display screen 10 by touching the external touch layer 30;

[0044] When the flexible display screen 10 is in a rolled-up state, the secondary screen 12 is located between the main screen 11 and the external touch layer 30, and there is a moving gap between the secondary screen 12 and the external touch layer 30; the flexible display screen 10 slides relative to the support member 21 to make the flexible display screen 10 in an unfolded state, and at least part of the secondary screen 12 is located on the same side as the main screen 11.

[0045] The secondary screen 12 needs to be curled and unfolded during use. The curling and unfolding of the secondary screen 12 will move relative to the transparent back cover 20. The setting of the moving gap provides space for the movement of the secondary screen 12 to ensure the stability of the movement of the secondary screen 12, thereby ensuring the reliability of the use of the electronic device 100 with a scroll screen. When the screen is unfolded, the main screen 11 and the secondary screen 12 are connected to form a whole screen, which expands the display area and the display screen, so that when the screen is pulled open, there is more visible area. By setting the back cover of the electronic device 100 as a transparent back cover 20, when the secondary screen 12 is curled, the display interface of the secondary screen 12 can be displayed, and the main screen 11 and the secondary screen 12 can display the same screen or different screens, so that the electronic device 100 can realize the function of double-sided display, thereby enriching the function of the electronic device 100 and improving the utilization rate of the flexible display screen 10.

[0046] By setting the external touch layer 30 and connecting the external touch layer 30 to the flexible display screen 10, the display of the flexible display screen 10 can be controlled by touching the external touch layer 30, the stability of the touch function on the back of the electronic device 100 is improved, the user's use is guaranteed, and the problem of poor touch function of the electronic device 100 with a scroll screen is avoided when the screen is rolled up. In addition, the external touch layer 30 can also receive independent touch signals to realize separate touch operation on the secondary screen 12, that is, when the screen is unfolded, the main screen 11 and the secondary screen 12 can be touched together, and when the screen is rolled up, the main screen 11 and the secondary screen 12 can realize independent touch operation respectively, thereby further enriching the use function of the electronic device, and greatly improving the utilization rate of the flexible display screen 10.

[0047] Specifically, the mobile gap is an air layer formed between the secondary screen 12 and the external touch layer 30 during the installation of the electronic device 100. The thickness of the air layer is relatively small, which can ensure the stable curling and unfolding of the flexible display screen 10, and at the same time can reduce the thickness of the electronic device 100 as much as possible.

[0048] Reference Figure 1-Figure 4 Optionally, the transparent back cover 20 can be made of glass or plastic. Of course, the transparent back cover 20 can also be made of other materials to ensure that the prepared transparent back cover 20 is transparent. The transparency of the transparent back cover 20 can ensure that the content displayed on the secondary screen 12 is displayed, thereby realizing the double-sided display function of the electronic device 100.

[0049] Optionally, the transparent back cover 20 and the external touch layer 30 are integrally formed, and the external touch layer 30 is integrated on the transparent back cover 20 to ensure the stability of the connection of the external touch layer 30, thereby ensuring the touch function of the electronic device 100. At the same time, the external touch layer 30 is integrated on the transparent back cover 20 to facilitate the installation and removal of the electronic device 100. Of course, during the installation of the electronic device 100, the external touch layer 30 can also be bonded to the transparent back cover 20 by transparent glue to achieve a stable connection between the external touch layer 30 and the transparent back cover 20.

[0050] See also Figure 1-Figure 4In some embodiments, the electronic device 100 further includes a power supply unit and an electric driver. The power supply unit is electrically connected to the electric driver to provide power to the electric driver. Optionally, the power supply unit may be a mobile power supply or an external mains connected to the outside of the electronic device 100. Of course, the power supply unit may also be a battery disposed inside the electronic device 100. The rotating end of the electric driver is electrically connected to a reel 23. The reel 23 is rotatably disposed on one side of the support 21. The secondary screen 12 of the flexible display screen 10 is curled along the outer wall of the reel 23. The electric driver is used to drive the reel 23 to rotate. The rotation of the reel 23 drives the movement of the secondary screen 12, thereby realizing the curling and unfolding of the flexible display screen 10. The electric driver may be any component that can realize the rotation of the reel 23, such as a motor or an electric motor. By setting the reel 23, the flexible display screen 10 moves around the reel 23 to realize the sliding of the flexible display screen 10 relative to the transparent back cover 20. The reel 23 may provide a supporting force and a rotation center, so that the flexible display screen 10 can be stably curled or unfolded. Specifically, the scroll 23 is disposed on one side of the transparent rear cover 20 in the width direction, so as to facilitate the use of the flexible display screen 10. Figure 4 When the scroll 23 rotates clockwise, the scroll 23 drives the secondary screen 12 to move toward the direction close to the main screen 11. This process is the unfolding process of the flexible display screen. When the secondary screen 12 moves to the maximum limit position, at least part of the secondary screen 12 is located on the same side as the main screen 11. This is the unfolded state of the flexible display screen. When the scroll 23 rotates counterclockwise when the flexible display screen is unfolded, the scroll 23 drives the secondary screen 12 to move away from the main screen 11 and curls along the outer wall of the scroll 23. This process is the curling process of the flexible display screen. When the secondary screen 12 moves to the maximum limit position, the secondary screen 12 is located between the main screen 11 and the external touch layer 30. This is the curled state of the flexible display screen.

[0051] Reference Figure 1 , Figure 3 and Figure 7In some embodiments, the electronic device 100 further includes a control mainboard 22, which is disposed on the support 21, and the display signal line of the flexible display screen 10 and the third touch signal line 31 of the external touch layer 30 are both connected to the control mainboard 22. By setting the control mainboard 22, the connection and disconnection of the internal circuit of the electronic device 100 are controlled; after the control mainboard 22 receives the touch signal of the external touch layer 30, the control mainboard 22 controls the display of the flexible display screen 10, thereby linking the external touch layer 30 with the flexible display screen 10, so that when the flexible display screen 10 is in a rolled state, the back of the electronic device 100 can also have a display function and a touch function, thereby ensuring the integrity of the double-sided touch function of the electronic device 100 and further enriching the overall function of the electronic device 100. Optionally, the control mainboard 22 and the scroll 23 are respectively located on both sides of the width direction of the support 21.

[0052] Combination Figure 4 and Figure 5 Specifically, the display signal line of the flexible display screen 10 and the touch signal line of the flexible display screen 10 are connected to the control main board 22 through the first electrical connector 40, wherein the flexible display screen 10 includes a main screen 11 and a sub-screen 12, so the display signal line of the flexible display screen 10 includes a first display signal line 111 of the main screen 11 and a second display signal line 121 of the sub-screen 12; the touch signal line of the flexible display screen 10 includes a first touch signal line 112 of the main screen 11 and a second touch signal line 122 of the sub-screen 12. Of course, the first electrical connector 40 can be any component that can realize electrical connection and transmission, such as a flexible circuit board or a chip-on-film layer. A display screen binding area 13 is formed on the flexible display screen 10, and the display screen binding area 13 is arranged on the side of the secondary screen 12 away from the main screen 11. The first electrical connection component 40 is bound to the display screen binding area 13. In addition, since the flexible display screen 10 can be curled and unfolded, the position of the secondary screen 12 relative to the support member 21 will move relative to each other, so the first electrical connection component 40 can be in a folded state to ensure that the movement of the flexible display screen 10 will not affect its connection with the control main board 22. The first display signal line 111 of the main screen 11 and the first touch signal line 112 of the main screen 11 are connected to the control main board 22 through the first electrical connector 40. Therefore, when the main screen 11 is touched, the control main board 22 receives a touch signal, and then the control main board 22 sends a signal to the first display signal line 111 of the main screen 11, and the first display signal line 111 works to realize the display of the main screen 11; similarly, the second display signal line 121 of the sub-screen 12 and the second touch signal line 122 of the sub-screen 12 are connected to the control main board 22 through the first electrical connector 40. When the sub-screen 12 is touched, the control main board 22 receives a touch signal, and then the control main board 22 sends a signal to the second display signal line 121 of the sub-screen 12, and the second display signal line 121 works to realize the display of the sub-screen 12.

[0053] Reference Figure 6 and Figure 8 , the third touch signal line 31 of the external touch layer 30 is connected to the control main board 22 through the second electrical connector 50, and the second electrical connector 50 can be any component that can realize electrical connection and transmission, such as a flexible circuit board or a chip-on-film layer. An external binding area 32 is formed on the transparent back cover 20, and the external binding area 32 is set at the frame position of the transparent back cover 20. The second electrical connector 50 is bound to the external binding area 32. The external touch layer 30 is connected to the control main board 22 through the second electrical connector 50 located in the external binding area 32 and performs signal transmission.

[0054] See also Figure 1 as well as Figure 5-Figure 8 In some embodiments, the control mainboard 22 identifies the signal of the third touch signal line 31 of the external touch layer 30 detected, and the control mainboard 22 controls the signal transmission between the second display signal line 121 of the secondary screen 12 according to the identification information. Specifically, the control mainboard 22 detects the third touch signal line 31 of the external touch layer 30 in real time, and determines whether its change reaches a threshold value. When it is determined that the change reaches the threshold value, the control mainboard 22 sends a signal to the second display signal line 121 of the secondary screen 12, and the secondary screen 12 realizes display, realizing the linkage between the touch function of the external touch layer 30 and the display function of the secondary screen 12, so that when the flexible display screen 10 is in the curled state, the back of the electronic device 100 can also have display function and touch function, and at the same time, it can also ensure that the display content of the main screen 11 will not be affected by the external touch layer 30.

[0055] See also Figure 1 , Figure 3 and Figure 7In some embodiments, in order to ensure the stable use of the electronic device 100, a detection member is further provided on the support member 21, and the detection member is used to detect the position of the secondary screen 12. The detection member and the second touch signal line 122 of the secondary screen 12 are both connected to the control mainboard 22, and the control mainboard 22 controls the on and off of the second touch signal line 122 of the secondary screen 12 according to the position of the secondary screen 12; when the detection member detects that the secondary screen 12 is located on the front of the electronic device 100, that is, the flexible display screen 10 is in the unfolded state at this time, and the display layer of the electronic device 100 is located on the front of the electronic device 100 in this state, and the user does not need to operate the back of the electronic device 100, etc. At this time, after the control mainboard 22 monitors that the change of the second touch signal line 12 of the secondary screen 12 reaches the threshold, the control mainboard 22 sends a signal to the second display signal line 121 of the secondary screen 12, and the user touches the secondary screen 12 on the front of the electronic device 100 to realize the linkage of the display of the secondary screen 12. When the detection component detects that the secondary screen 12 is located on the back of the electronic device 100, that is, the flexible display screen 10 is in a curled state, the control mainboard 22 will not send a signal to the second display signal line 121 of the secondary screen 12 after monitoring that the change of the second touch signal line 12 of the secondary screen 12 reaches the threshold, thereby not triggering the display of the secondary screen 12.

[0056] Optionally, the detection member includes a sensor or other mechanism that can detect the position of the secondary screen 12. Exemplarily, the detection member can also be an acceleration sensor, which obtains the acceleration of the flexible display screen 10 to determine whether the flexible display screen 10 moves, thereby obtaining the current position of the secondary screen 12 according to the initial position of the flexible display screen 10. Alternatively, the detection member is an inductive sensor, which detects whether the secondary screen 12 moves relative to each other through the inductive sensor, thereby determining the position of the secondary screen 12.

[0057] See also Figure 1 , Figure 3 , Figure 7 and Figure 8In some embodiments, the first display signal line 111 of the main screen 11 is connected to the control mainboard 22, and the control mainboard 22 controls the signal transmission between the first display signal line 111 of the main screen 11 and the position of the secondary screen 12 and the monitored signal of the third touch signal line 31 of the external touch layer 30. When the flexible display screen 10 is in the unfolded state, the secondary screen 12 is located on the front of the electronic device. The control mainboard 22 monitors the change of the third touch signal line 31, and the control mainboard 22 will not react to the received signal, that is, touching the external touch layer 30 will not affect the display function and touch function of the flexible display screen 10. Therefore, by touching the external touch layer 30, the electronic device 100 will not produce a corresponding reaction, so as to ensure the stability of user use and avoid the user accidentally touching the back of the electronic device 100 to affect the content displayed on the front of the electronic device 100 when the flexible display screen 10 is unfolded. At the same time, after the control mainboard 22 detects that the change of the first touch signal line 112 of the main screen 11 reaches the threshold, it sends a signal to the first display signal line 111 of the main screen 11, and touches the main screen 11 to control the display of the main screen 11; after the control mainboard 22 detects that the change of the second touch signal line 122 of the secondary screen 12 reaches the threshold, it sends a signal to the second display signal line 121 of the secondary screen 12, and touches the secondary screen 12 to control the display of the secondary screen 12. That is, the display signal line and the touch signal line of the flexible display screen 10 are interconnected, so the content display of the flexible display screen 10 can be controlled by manipulating the flexible display screen 10. At this time, the screen is unfolded, the main screen 11 and the secondary screen 12 are connected together, and a complete and more pictures can be displayed.

[0058] Of course, when the flexible display screen 10 is in the curled state, the control mainboard 22 will send a signal to the second display signal line 121 of the secondary screen 12 after monitoring the change of the third touch signal line 31 of the external touch layer 30 to reach the threshold, thereby triggering the display of the secondary screen 12. At the same time, the control mainboard 22 can also send a signal to the first display signal line 111 of the main screen 11 at the same time, thereby triggering the display of the main screen 11. At this time, it is a double-sided display state of the electronic device, which meets the user's need to display the front and back of the electronic device at the same time. For example, when it is detected that the electronic device is in the camera mode, the control mainboard 22 switches to the double-sided display state, and the main screen 11 and the secondary screen 12 display the shooting picture at the same time. At this time, the main screen 11 and the secondary screen 12 display the same picture. The user touches the external touch layer 30, and the control mainboard 22 monitors that the change of the third touch signal line 31 of the external touch layer 30 reaches the threshold. After that, the control mainboard 22 will send a signal to the first display signal line 111 and the second display signal line 121 at the same time, so that the main screen 11 and the secondary screen 12 are displayed simultaneously. That is, at this time, the main screen 11 and the secondary screen 12 display the shooting picture at the same time, and it is more convenient for the user to use the electronic device to take pictures. Of course, the electronic device can also achieve a double-sided display state in other modes. The specific situation can be that the system selectively adapts according to the corresponding system software, or the user sets it according to actual use needs. This embodiment does not limit this.

[0059] Of course, when the flexible display screen 10 is in a curled state, after the control main board 22 detects that the change of the third touch signal line 31 of the external touch layer 30 reaches the threshold, the control main board 22 will send a signal to the second display signal line 121 of the sub-screen 12 instead of sending a signal to the first display signal line 111 of the main screen 11, thereby triggering the display of the sub-screen 12 instead of the main screen 11, that is, the user will not affect the content display of the main screen 11 by controlling the external touch layer 30.

[0060] See also Figure 1 , Figure 3 , Figure 7 and Figure 8In some embodiments, the control mainboard 22 controls the on / off of the third touch signal line 31 of the external touch layer 30 according to the position of the secondary screen 12. When the flexible display screen 10 is in the unfolded state, the third touch signal line 31 of the external touch layer 30 is disconnected, and the control mainboard 22 identifies the detected signal of the second touch signal line 122 of the secondary screen 12, and controls the signal transmission between the control mainboard 22 and the second display signal line 121 of the secondary screen 12 according to the identification information; that is, when the flexible display screen 10 is in the unfolded state, the control mainboard 22 does not respond to the monitored signal of the third touch line 31, and at this time, touching the external touch layer 30 will not affect the display of the secondary screen 12. The control mainboard 22 responds to the monitored signal of the second touch signal line 122 of the secondary screen 12, that is, sends a signal to the second display signal line 121 of the secondary screen 12, so as to realize the corresponding display of the secondary screen 12 by touching the secondary screen 12. At this time, the content display of the secondary screen 12 is controlled by the second touch signal line 122 of the secondary screen 12, and is not affected by the third touch signal line 31 of the external touch layer 30, thereby ensuring the stability of the touch of the secondary screen 12.

[0061] When the flexible display screen 10 is in the rolled state, the second touch signal line 122 of the secondary screen 12 is disconnected, the control main board 22 identifies the detected signal of the third touch signal line 31 of the external touch layer 30, and controls the signal transmission between the control main board 22 and the second display signal line 121 of the secondary screen 12 according to the identification information. When the flexible display screen 10 is in the rolled state, the control main board 22 does not respond to the signal transmitted by the second touch signal line 122, and the second touch signal line 122 does not affect the display of the secondary screen 12 after being touched. The second touch signal line 122 of the secondary screen 12 does not write and detect signals, and the content display of the secondary screen 12 is not controlled by the second touch signal line 122 of the secondary screen 12, but is controlled by the third touch signal line 31 of the external touch layer 30, so as to ensure that when the secondary screen 12 is used alone, the touch performance of the secondary screen 12 is the same as that of the main screen 11, thereby ensuring the stability of the touch display function on the back of the electronic device 100. The control mainboard 22 responds to the signal of the third touch signal line 31 of the external touch layer 30 detected, and sends a signal to the second display signal line 121, so as to realize the corresponding display of the sub-screen 12 by touching the external touch layer 30. At this time, the content display of the sub-screen 12 is controlled by the third touch signal line 31 of the external touch layer 30, and is not affected by the second touch signal line 12 of the sub-screen 12, so as to ensure the stability of the touch of the sub-screen 12. In other words, the sub-screen 12 and the main screen 11 are controlled and displayed separately, and the sub-screen 12 displays the picture separately by touching the external touch layer 30 on the back of the screen, while the main screen 11 does not display the picture.

[0062] The control mainboard 22 identifies the signal, that is, monitors the change of the signal, and determines whether the change value of the signal reaches a threshold value. If the threshold value is not reached, no reaction is made, and if the threshold value is reached, a corresponding reaction is made. The change of the signal can be a change in voltage or a change in capacitance, etc., and the change value of the signal can be adaptively selected according to different sensitivity requirements.

[0063] In addition, when the flexible display screen 10 is in the rolled state, the control mainboard 22 controls the signal transmission between it and the second display signal line 121 of the secondary screen 12, the second touch signal line 122 of the secondary screen 12, and the third touch signal line 31 of the external touch layer 30 to be disconnected; at this time, only after the signal change of the first touch signal line 112 of the main screen 11 reaches the threshold, the control mainboard 22 transmits the signal to the first display signal line 111 of the main screen 11, and the main screen 11 displays. That is, when the flexible display screen 10 is rolled, only the main screen 11 located on the front of the electronic device 100 displays, while the secondary screen 12 does not display, only the pixels and touch control in the main screen 11 area work, the secondary screen 12 and the external touch layer 30 do not work, and the second electrical connector 50 does not transmit signals. The content display of the main screen 11 can be controlled by touching the main screen 11, and the user touching the back of the electronic device 100 will not affect the content display of the electronic device 100.

[0064] Of course, when the flexible display screen 10 is in the curled state, the control mainboard 22 sends a signal to the first display signal line 111 of the main screen 11 after monitoring that the change of the first touch signal line 112 of the main screen 11 reaches the threshold. In other words, the secondary screen 12 and the main screen 11 are controlled and displayed separately. In the curled state, the main screen 11 can be touched on the front of the screen to display the picture on the main screen 11 alone, while the secondary screen 12 will not display the picture when the external touch layer 30 on the back of the screen is touched. In this case, the control mainboard 22 can also send a signal to the second display signal line 121 of the secondary screen 12 after monitoring that the change of the third touch signal line 31 of the external touch layer 30 reaches the threshold; thereby, the content display of the main screen 11 can be controlled by touching the main screen 11, and the content display of the secondary screen 12 can be controlled by touching the external touch layer 30, that is, the main screen 11 and the secondary screen 12 display different pictures.

[0065] Second embodiment

[0066] This embodiment provides an electronic device, which is a further improvement of the first embodiment.

[0067] In this embodiment, the detection element is used to detect the position of the secondary screen 12. When the secondary screen 12 is stretched or rolled, the detection element detects the position of the secondary screen 12, and controls the display of the main screen 11 and the secondary screen 12 according to the position of the secondary screen 12.

[0068] When the secondary screen 12 is partially stretched or partially rolled, the expanded part is referred to as the secondary screen expanded part, the rolled part is referred to as the secondary screen rolled part, and the secondary screen rolled part and the secondary screen expanded part are referred to as the dividing point. With the control of the control mainboard 22, only the rolled part of the flexible display screen 10 is displayed, or only the expanded part of the flexible display screen 10 is displayed, or the rolled part of the secondary screen and the expanded part of the secondary screen are displayed at the same time, and the contents displayed at the same time can be the same / different.

[0069] In the first case, only the rolled-up part of the secondary screen is displayed; at this time, for the rolled-up part of the secondary screen, after the control mainboard 22 detects that the change of the third touch signal line 31 of the external touch layer 30 reaches the threshold, the control mainboard 22 gives the second display signal line signal of the secondary screen 12, and at the same time, the control mainboard 22 controls the first touch signal line 112, the second touch signal line 122, and the first display signal line 111 to cut off the signals, so that part of the main screen 11 is not displayed. In the second display signal line 121 of the secondary screen 12, the dividing point is used as the dividing point, and the control mainboard 22 gives the second display signal line 121 on the upper side of the dividing point a black screen data signal, so that the expanded part of the secondary screen 12 displays a black screen, and the main screen 11 is not displayed, thereby keeping the expanded part of the flexible display screen 10 pure black, which is similar to not displaying the picture; at the same time, the control mainboard 22 gives the second display signal line 121 on the lower side of the dividing point a normal data signal, and the rolled-up part of the secondary screen displays a normal picture.

[0070] In the second case, only the expanded part of the secondary screen and the main screen 11 are displayed; at this time, for the rolled-up part of the secondary screen, the control motherboard 22 controls the third touch signal line 31 of the external touch layer 30 to be cut off, and among the second display signal lines 121 of the secondary screen 12, with the dividing point as the dividing point, the control motherboard 22 gives a black screen data signal to the second display signal line 121 on the lower side of the dividing point, so that the rolled-up part of the secondary screen displays a black screen, that is, the rolled-up part of the secondary screen is not displayed; and, the control motherboard 22 gives a normal data signal to the second display signal line 121 on the upper side of the dividing point, and the control motherboard 22 also gives normal signals to the first touch signal line 112 of the main screen 11, the first display signal line 111, and the second touch signal line 122 of the secondary screen 12, so that the expanded part of the secondary screen and the main screen 11 complete normal display and touch operations.

[0071] In the third case, the retracted part and the expanded part of the secondary screen are displayed at the same time; at this time, for the retracted part of the secondary screen, the control main board 22 controls the third touch signal line 31 of the external touch layer 30 to receive the signal, and after the control main board 22 detects that the change of the third touch signal line 31 of the external touch layer 30 reaches the threshold, the control main board 22 sends a signal to the second display signal line 121 on the lower side of the dividing point of the secondary screen 12, so that the retracted part of the secondary screen independently receives the signal of the second display signal line 121 to display a picture; at the same time, the control main board 22 controls the first touch signal line 11 2. The signals of the second touch signal line 122, the first display signal line 111, and the second display signal line 121 on the upper side of the dividing point of the secondary screen 12 are turned on, and the control main board 22 realizes the touch operation and display of the main screen 11 through the first touch signal line 112 and the first display signal line 111, and the control main board 22 realizes the touch and display of the expanded part of the secondary screen through the second touch signal line 122 and the second display signal line 121 on the upper side of the dividing point of the secondary screen 12. The control main board 22 controls the main screen 11 and the expanded part of the secondary screen 12 through signals so that one picture is displayed. That is to say, in the third case, the back of the electronic device (the rolled-up part of the secondary screen) displays one picture, and the front of the electronic device (the expanded part of the secondary screen and the main screen 11) displays another picture.

[0072] In this embodiment, by combining the external touch layer 30, the transparent back panel, the detection element and the control timing, when the electronic device partially rolls up and partially unfolds the secondary screen 12, the rolled-up part of the secondary screen can be displayed separately, the rolled-up part of the secondary screen can also not be displayed, and the rolled-up part of the secondary screen can also display different pictures at the same time as the main screen 11 and the unfolded part of the secondary screen, thereby adding more usage functions and scenarios to the electronic device and enhancing the usability of the electronic device.

[0073] Third embodiment

[0074] like Figure 1-Figure 8 As shown, the embodiment of the present application also provides a control method of an electronic device, including:

[0075] When the flexible display screen 10 is in the rolled state, the second touch signal line 122 of the sub-screen 12 is disconnected, the third touch signal line 31 of the detected external touch layer 30 is identified, and the display of the sub-screen 12 is controlled according to the identification information.

[0076] The secondary screen 12 of the electronic device 100 adopts a dual-touch structure. When the flexible display screen 10 is in a rolled state, the signal information of the third touch signal line 31 of the external touch layer 30 is monitored. When the signal change reaches a threshold, a signal is given to the second display signal line 121 of the secondary screen 12, and the secondary screen 12 realizes display, and the second touch signal line 122 of the secondary screen 12 is disconnected, that is, the touch function of the external touch layer 30 is used alone, and the touch function of the external touch layer 30 is not written or detected. The touch function of the external touch layer 30 is linked with the display function of the secondary screen 12 by signal, so that the secondary screen 12 can realize independent touch and display, and its touch performance can be guaranteed, so that the electronic device 100 can realize the double-sided display function while ensuring the integrity of the double-sided touch function of the electronic device 100, thereby improving the technical level and functional richness of the product.

[0077] See also Figure 1 , Figure 3 , Figure 7 and Figure 8 In some embodiments, when the flexible display screen 10 is in the unfolded state, the third touch signal line 31 of the external touch layer 30 is controlled to be disconnected to identify the detected touch signal line of the flexible display screen, and the display of the flexible display screen 10 is controlled according to the identification information. The signal of the third touch signal line 31 of the external touch layer 30 is not written or detected, the touch information of the flexible display screen 10 is detected and the signal of displaying the flexible display screen 10 is controlled by the information, thereby realizing the display of the flexible display screen 10 by touching the flexible display screen 10.

[0078] When the flexible display screen 10 is in the unfolded state, the main screen 11 and the sub-screen 12 are both located on the front side of the electronic device 100. The user can control the display content of the flexible display screen 10 by touching the front side of the electronic device 100, and there is no need to control the display content of the flexible display screen 10 through the back side of the electronic device 100. The third touch signal line 31 of the external touch layer 30 is disconnected to ensure that the user's touching the external touch layer 30 will not affect the content display of the flexible display screen 10, thereby ensuring the reliability and stability of user use.

[0079] It should be noted that the present application provides an electronic device with a flexible display screen 10. Those skilled in the art may know that when the secondary screen 12 is located on the back of the electronic device 100, the flexible display screen 10 is in a rolled-up state, and when the secondary screen 12 is located on the front of the electronic device 100, the flexible display screen 10 is in an unfolded state.

[0080] It should be noted that, in order to facilitate description and understanding in this application, the flexible display screen 10 is divided into two parts, namely, the main screen 11 and the secondary screen 12, but the main screen 11 and the secondary screen 12 are actually a screen that can be flexibly rolled up, and its basic structure is the same as that of a common flexible screen in the art. Exemplarily, the data signal of the main screen 11 and the data signal of the secondary screen 12 in this application are the same.

[0081] In addition, the display signal lines and touch signal lines in the drawings provided in this application are only schematic displays for the convenience of a clear understanding of the technical solution of this application. The technical personnel can clearly understand the actual positions and actual connections of the display signal lines and touch signal lines based on the schematic displays in the drawings of this application and in combination with the common knowledge in the field. In addition, for the convenience of description, the display signal lines and touch signal lines in the drawings of this application are shown as examples of only one signal line each. According to the common knowledge in the field, it can be known that when electronic devices are actually produced and prepared, each display signal line and each touch signal line are provided with a number of wires, and the specific number will vary according to the different performance requirements of different electronic devices.

[0082] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0083] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0084] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0085] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An electronic device, characterized in that: include: A transparent back cover, on which a support member is disposed; A flexible display screen, which is slidably disposed on the support member, and comprises a main screen and a secondary screen connected to each other; An external touch layer is arranged on a side of the transparent back cover facing the flexible display screen, the touch surface of the external touch layer is arranged toward the transparent back cover, and the external touch layer is connected to the flexible display screen so as to control the display of the flexible display screen by touching the external touch layer; When the flexible display screen is in a rolled-up state, the secondary screen is located between the main screen and the external touch layer, and a movable gap is provided between the secondary screen and the external touch layer; the flexible display screen slides relative to the supporting member so that the flexible display screen is in an unfolded state, and at least a portion of the secondary screen is located on the same side as the main screen.

2. The electronic device according to claim 1, characterized in that: It also includes a control mainboard arranged on the support member, the display signal line of the flexible display screen and the touch signal line of the flexible display screen are connected to the control mainboard through a first electrical connector, and the third touch signal line of the external touch layer is connected to the control mainboard through a second electrical connector.

3. The electronic device according to claim 2, characterized in that: The control mainboard identifies the signal of the third touch signal line of the external touch layer detected, and controls the signal transmission between the control mainboard and the second display signal line of the secondary screen according to the identification information.

4. The electronic device according to claim 3, characterized in that: The support member is also provided with a detection member, which is used to detect the position of the secondary screen. The detection member and the second touch signal line of the secondary screen are both connected to the control main board, and the control main board controls the on and off of the second touch signal line of the secondary screen according to the position of the secondary screen.

5. The electronic device according to claim 4, characterized in that: The control mainboard controls the on / off of the third touch signal line of the external touch layer according to the position of the secondary screen. When the flexible display screen is in the unfolded state, the third touch signal line of the external touch layer is disconnected, the control main board identifies the detected signal of the second touch signal line of the secondary screen, and controls the signal transmission between the control main board and the second display signal line of the secondary screen according to the identification information; When the flexible display screen is in a rolled-up state, the second touch signal line of the secondary screen is disconnected, the control main board identifies the signal of the third touch signal line of the external touch layer detected, and controls the signal transmission between the control main board and the second display signal line of the secondary screen according to the identification information.

6. The electronic device according to claim 4, characterized in that: When the flexible display screen is in a rolled-up state, the control main board controls the signal transmission between it and the second display signal line of the secondary screen, the second touch signal line of the secondary screen and the third touch signal line of the external touch layer to be disconnected.

7. The electronic device according to any one of claims 1 to 6, characterized in that: A scroll is rotatably provided on one side of the support, and the auxiliary screen of the flexible display screen is curled along the outer wall of the scroll, and the rotation of the scroll drives the movement of the auxiliary screen.

8. The electronic device according to any one of claims 1 to 6, characterized in that: The transparent back cover and the external touch control layer are integrally formed.

9. A method for controlling an electronic device according to any one of claims 1 to 8, characterized in that: The method comprises: When the flexible display screen is in a rolled-up state, the second touch signal line of the secondary screen is controlled to be disconnected, the third touch signal line of the detected external touch layer is identified, and the display of the secondary screen is controlled according to the identification information.

10. The control method of the electronic device according to claim 9, characterized in that: When the flexible display screen is in an unfolded state, the third touch signal line of the external touch layer is controlled to be disconnected, the detected touch signal line of the flexible display screen is identified, and the display of the flexible display screen is controlled according to the identification information.

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