A display device and a driving method thereof

Abstract

An embodiment of the present application discloses a display device and a driving method. The display device includes: a housing, the housing includes a first side and a second side that are opposite to each other in a first direction; a display screen, the display screen has a first end and a second end, and at least one of the first end and the second end is received in the housing. Wherein, a first display area in the display area of the display screen is located between the first side and the second side, and a second display area in the display area of the display screen is received in the housing; a driving circuit, the driving circuit is configured to provide a driving signal to the first display area and control the first display area to display when the display screen displays an image, and does not provide a driving signal to the second display area, so as to save the power consumption of the driving circuit for driving the second display area to display, thereby reducing the power consumption of the display device.

Description

Technical Field

[0001] The present application relates to the field of display technologies, and in particular, to a display device and a driving method thereof. Background Art

[0002] With the development of display technologies, flexible display screens are increasingly widely used, bringing great convenience to people's daily work and life. Currently, in order to meet the requirements that a display device can provide a large display area while having a small storage space, a rollable display device has emerged. Specifically, the rollable display device includes a housing and a flexible display screen. When applied to a scenario that requires a large display area, all the display area of the flexible display screen extends out of the housing to provide a large display area; when the display device is not used for display, at least part of the display area of the flexible display screen is stored in the housing, so that the display device has a small storage space. However, currently, when the rollable display device is applied to a scenario with a small display area, the power consumption is relatively high. Summary of the Invention

[0003] To solve the above problems, embodiments of the present application provide a display device and a driving method thereof to reduce the power consumption of the display device when applied to a scenario with a small display area.

[0004] Specifically, the embodiments of the present application provide the following technical solutions:

[0005] A display device, comprising:

[0006] A housing, the housing including a first side and a second side opposite to each other in a first direction;

[0007] A display screen, the display screen having a first end and a second end, at least one of the first end and the second end being stored in the housing. Among them, in the display area of the display screen, a first display area is located between the first side and the second side, and a second display area in the display area of the display screen is stored in the housing;

[0008] A driving circuit, the driving circuit being configured to provide a driving signal to the first display area and control the first display area to display when the display screen displays an image, and not providing a driving signal to the second display area.

[0009] A driving method, applied to the above display device, the method comprising:

[0010] When scanning the first display area of the display screen, scanning each display pixel row of the first display area of the display screen row by row, providing a driving signal to the first display area, and controlling the first display area to display;

[0011] When scanning the second display area of the display screen, stop outputting the driving signal to not provide the driving signal to the second display area.

[0012] When the display device and its driving method provided by the embodiments of the present application are applied to a situation where part of the display area is exposed outside the housing for displaying display content and part of the display area is received inside the housing, the driving circuit is used to control only the first display area to display, and the second display area does not display, which can save the power consumption of the driving circuit for driving the second display area to display, thereby reducing the power consumption of the display device. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0014] Figure 1 Top view of the display device provided by an embodiment of the present application;

[0015] Figure 2 Cross-sectional view of the display device provided by an embodiment of the present application;

[0016] Figure 3 Top view of the display device provided by another embodiment of the present application;

[0017] Figure 4 Cross-sectional view of the display device provided by another embodiment of the present application;

[0018] Figure 5 Top view of the display device provided by yet another embodiment of the present application;

[0019] Figure 6 Cross-sectional view of the display device provided by yet another embodiment of the present application;

[0020] Figure 7 Top view of the display device provided by still another embodiment of the present application;

[0021] Figure 8 Top view of the display device provided by yet another embodiment of the present application;

[0022] Figure 9 Internal structure schematic diagram of the display device provided by an embodiment of the present application;

[0023] Figure 10Schematic diagram of the internal structure of the display device provided by another embodiment of the present application;

[0024] Figure 11 Schematic diagram of the internal structure of the display device provided by yet another embodiment of the present application;

[0025] Figure 12 Top view of the display device provided by yet another embodiment of the present application;

[0026] Figure 13 Cross-sectional view of the display device provided by yet another embodiment of the present application;

[0027] Figure 14 Cross-sectional view of the display device provided by yet another embodiment of the present application;

[0028] Figure 15 Cross-sectional view of the display device provided by yet another embodiment of the present application;

[0029] Figure 16 Cross-sectional view of the display device provided by yet another embodiment of the present application;

[0030] Figure 17 Cross-sectional view of the display device provided by yet another embodiment of the present application;

[0031] Figure 18 Flowchart of the driving method provided by an embodiment of the present application. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0033] In the following description, many specific details are set forth in order to fully understand the present application. However, the present application may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0034] As described in the background art section, currently, when a rollable display device is applied to a scenario with a small display area, the power consumption is relatively large.

[0035] The inventors' research found that this is because when the current rollable display device is applied to a scenario with a smaller display area, only a part of the display area of the flexible display screen is received in the housing, and a part of the display area is exposed outside the housing. However, all the display areas of the flexible display screen are displayed, that is, the part of the display area of the flexible display screen received in the housing is also displayed, resulting in a relatively high power consumption of the display device.

[0036] In view of this, an embodiment of the present application provides a display device, as Figure 1 and Figure 2 shown, the display device includes:

[0037] A housing 10, the housing 10 includes a first side 11 and a second side 12 opposite to each other in the first direction X;

[0038] A display screen 20, the display screen 20 has a first end and a second end, at least one of the first end and the second end is received in the housing 10. Optionally, the display screen 20 is a flexible display screen. Specifically, a first display area 21 in the display area of the display screen 20 is located between the first side 11 and the second side 12 and is visible to the user, and a second display area 22 in the display area of the display screen 20 is received in the housing 10 and is not visible to the user, so that a part of the display area of the display screen 20 is exposed outside and a part of the display area is received in the housing 10;

[0039] A driving circuit 30, the driving circuit 30 is used to provide a driving signal to the first display area 21 to control the display of the first display area 21 when the display screen displays an image, and does not provide a driving signal to the second display area 22 to control the non-display of the second display area 22.

[0040] Optionally, on the basis of the above embodiment, in an embodiment of the present application, continue as Figure 1 and Figure 2 shown, the first end of the display screen 20 is received in the housing 10, the second end of the display screen 20 is fixed to the second side 22 of the housing 10, and the second display area 22 is located on a side of the first display area 21 away from the second side 12 of the housing 10; specifically, in this embodiment, the first end of the display screen 20 is slidably connected to a first rotating shaft 41 fixed to the first side 11 of the housing 10 to realize the adjustment of the display area of the first display area 21.

[0041] In another embodiment of the present application, as Figure 3 and Figure 4As shown, the first end of the display screen 20 is fixed to the first side 11 of the housing 10, the second end of the display screen 20 is received in the housing 10, and the second display area 22 is located on the side of the first display area 21 away from the first side 11 of the housing 10; specifically, in this embodiment, the second end of the display screen 20 is slidably connected to a second rotating shaft 42 fixed to the second side 12 of the housing 10 to adjust the display area of the first display area 21.

[0042] In another embodiment of the present application, as Figure 5 and Figure 6 shown, both the first end and the second end of the display screen 20 are received in the housing 10. The second display area 22 includes a first sub-display area 221 and a second sub-display area 222. The first sub-display area 221 is located on the side of the first display area 21 away from the first side 11 of the housing 10 and is received in the housing 10. The second sub-display area 222 is located on the side of the first display area 21 away from the second side 12 of the housing 10 and is received in the housing 10.

[0043] When the display device provided by the embodiment of the present application is applied to a situation where part of the display area is exposed outside the housing for displaying display content and part of the display area is received in the housing, the driving circuit is used to control only the first display area to display, and the second display area does not display, which can save the power consumption of the driving circuit for driving the second display area to display, thereby reducing the power consumption of the display device.

[0044] It should be noted that in the above embodiment, the situation where part of the display area of the display screen is exposed outside the housing and part is received in the housing is only one application scenario of the display device, and the display device can also be applied to other scenarios. Specifically, in an embodiment of the present application, when the display area required by the application scenario of the display device is smaller than the maximum display area of the display device, as Figure 2 shown, part of the display area of the display screen 20 extends out of the housing and is exposed outside the housing and visible to the user, and part of the display area is received in the housing and not visible to the user; when the display area required by the application scenario of the display device is not less than the maximum display area of the display device, as Figure 7 shown, all the display areas of the display screen 20 extend out of the housing and are exposed outside the housing and visible to the user; when the display device is not used for display, as Figure 8 shown, all the display areas of the display screen 20 are received in the housing 10, but the present application does not limit this, which specifically depends on the accommodation space of the housing and the usage requirements.

[0045] Based on any of the above embodiments, in an embodiment of the present application, as Figure 9 shown, the display screen has a plurality of scan lines G extending along the second direction Y and a plurality of data lines S extending along the first direction X. The second direction Y intersects the first direction X, that is, the extending direction of the scan lines G intersects the extending direction of the data lines S. When the display screen is used to display content, the driving circuit 30 provides data driving signals to each of the data lines S.

[0046] Based on the above embodiments, in an embodiment of the present application, when all the display areas of the display device are used for display, the driving circuit 30 provides data driving signals to each of the data lines S and provides scan driving signals to each of the scan lines G to control the entire display area of the display screen to display; when the display device is not used for display, the driving circuit 30 does not provide data driving signals to each of the data lines S and does not provide scan driving signals to each of the scan lines G to control the entire display area of the display screen not to display; when a part of the display area of the display device is used for display and a part of the display area is not used for display, the driving circuit 30 provides data driving signals to each of the data lines S, provides scan driving signals to some of the scan lines G, and does not provide scan driving signals to some of the scan lines G to control some of the display areas of the display screen to display and some of the display areas not to display, reducing the power consumption of the display device.

[0047] The following describes the scenario when a part of the display area of the display device is used for display and a part of the display area is not used for display in combination with specific situations.

[0048] Specifically, in an embodiment of the present application, as Figure 10 shown, the driving circuit 30 is used to provide scan driving signals to the scan lines G1 of the first display area 21 to control the first display area 21 to display, and does not provide scan driving signals to the scan lines G2 of the second display area 22 to control the second display area 22 not to display, thereby saving the power consumption for display of the second display area 22 and further reducing the power consumption when the display device is operating.

[0049] Based on the above embodiments, in an embodiment of the present application, as Figure 11As shown, the driving circuit includes a first circuit 31 and a second circuit 32. The first circuit 31 is used to provide the scan signals required for the display area of the display screen. The second circuit 32 is used to control the conduction state of the path between the first circuit 31 and the display area of the display screen, so that at least one of the first circuit 31 and the second circuit 32 is used to control part of the display area of the display screen to display and part of the display area not to display when part of the display area of the display device is used for display and part of the display area is not used for display, thereby reducing the power consumption of the display device.

[0050] Optionally, based on the above embodiments, in an embodiment of the present application, continue as Figure 11 As shown, the second circuit 32 is in a conducting state. The first circuit 31 provides a scan driving signal to the scan line G1 of the first display area 21 and does not provide a scan driving signal to the scan line G2 of the second display area 22. Specifically, each scan line in the display screen is scanned line by line. When the driving circuit is used to provide a scan driving signal to the scan line G1 of the first display area 21, the first circuit 31 outputs a scan driving signal, and the second circuit 32 is in a conducting state. When the driving circuit is used to provide a scan signal to the scan line G2 of the second display area 22, the first circuit 31 does not output a scan driving signal, and the second circuit 32 is in a conducting state, so as to reduce the power consumption of the display device by saving the power consumption of the first circuit 31 outputting a scan driving signal.

[0051] In another embodiment of the present application, the first circuit provides scan driving signals to the first display area and the second display area. Continue as Figure 11 As shown, the second circuit 32 is in a conducting state when the first circuit 31 provides a scan driving signal to the scan line G1 of the first display area 21, and is in a cut-off state when the first circuit 31 provides a scan driving signal to the scan line G2 of the second display area, that is, when the driving circuit is used to provide a scan driving signal to the scan line G1 of the first display area 21, the first circuit 31 outputs a scan driving signal, and the second circuit 32 is in a conducting state. When the driving circuit is used to provide a scan signal to the scan line G2 of the second display area 22, the first circuit 31 outputs a scan driving signal, and the second circuit 32 is in a cut-off state, so as to reduce the power consumption of the display device by saving the power consumption consumed by the conduction of the second circuit 32.

[0052] In yet another embodiment of the present application, continue as Figure 11As shown, the first circuit 31 provides a scan driving signal to the scan lines G1 of the first display area 21, and does not provide a scan driving signal to the scan lines G2 of the second display area 22. Moreover, the second circuit 32 is in a conducting state when the first circuit 31 provides a scan driving signal to the scan lines G1 of the first display area 21, and is in a cutoff state when the first circuit 31 provides a scan driving signal to the scan lines G2 of the second display area. That is, when the driving circuit is used to provide a scan driving signal to the scan lines G1 of the first display area 21, the first circuit 31 outputs a scan driving signal, and the second circuit 32 is in a conducting state. When the driving circuit is used to provide a scan signal to the scan lines G2 of the second display area 22, the first circuit 31 does not output a scan driving signal, and the second circuit 32 is in a cutoff state, so as to reduce the power consumption of the display device by saving the power consumption of the first circuit 31 for outputting a scan driving signal and the power consumption of the second circuit 32 for conducting.

[0053] Specifically, on the basis of the above embodiment, in an embodiment of the present application, the first circuit includes a control circuit IC, a scan line driving circuit (i.e., a gate driving circuit), and a data line driving circuit. Among them, the control circuit is used to provide a driving signal to the scan line driving circuit and provide a driving signal to the data line driving circuit. The scan line driving circuit is used to provide a scan driving signal to each scan line of the display area of the display screen, and the data line driving circuit is used to provide a data driving signal to each data line of the display area of the display screen.

[0054] Optionally, in an embodiment of the present application, when the first circuit does not provide a driving signal to the second display area, the control circuit IC outputs a stop and reset signal to the scan line driving circuit, so that the scan line driving circuit does not output a scan driving signal.

[0055] Since the scan line driving circuit and the data line driving circuit account for a large proportion of the power consumption of the display device, therefore, the display device provided by the embodiments of the present application can save the power consumption of the scan line driving circuit for driving the second display area when applied to a scenario with a small display area, thereby significantly reducing the power consumption of the display device.

[0056] On the basis of any of the above embodiments, in an embodiment of the present application, as Figure 12As shown, the display device further includes: a detection element 50, which is used to determine the positions of the first display area 21 and the second display area 22 in the display area of the display screen, so as to facilitate the driving circuit to determine when to output a scan driving signal and when not to output a scan driving signal. Furthermore, when scanning the scan lines of the first display area 21, the scan driving signal is output, and when scanning the scan lines of the second display area 22, the scan driving signal is not output.

[0057] Based on the above embodiments, in an embodiment of the present application, the display screen has a touch detection element. In this embodiment, the detection element includes: at least one conductor piece. The at least one conductor piece is fixed on the first side and / or the second side of the housing, and there is a touch signal between the at least one conductor piece and the touch detection element. In this embodiment, the driving circuit is further configured to determine the boundary line between the first display area and the second display area based on the touch signal, so as to determine the positions of the first display area and the second display area in the display area of the display screen.

[0058] Specifically, in an embodiment of the present application, as Figure 13 shown, the first end of the display screen 20 is received in the housing 10, and the second end is fixed to the second side 12 of the housing 10. The second display area 22 is located on the side of the first display area 21 away from the second side 12 of the housing 10. In this embodiment, the at least one conductor piece 51 is fixed on the first side 11 of the housing 10. The driving circuit 30 determines the position of the at least one conductor piece 51 corresponding to the display screen 20 based on the touch signal between the at least one conductor piece 51 and the touch detection element in the display screen 20, and records it as the first position. Then, the display area between the first position in the display screen 20 and the first end of the display screen 20 is the second display area 22, and the display area between the first position in the display screen 20 and the second end of the display screen 20 is the first display area 21.

[0059] In another embodiment of the present application, as Figure 14As shown, the first end of the display screen 20 is fixed to the first side 11 of the housing 10, and the second end is received in the housing 10. The second display area 22 is on the side of the first display area 21 away from the first side 11 of the housing 10. In this embodiment, the at least one conductor member 51 is fixed to the second side 12 of the housing 10. The driving circuit 30 determines the position corresponding to the at least one conductor member 51 in the display screen 20 based on the touch signal between the at least one conductor member 51 and the touch detection element in the display screen 20, denoted as the first position. Then, the display area between the first position in the display screen 20 and the first end of the display screen 20 is the first display area 21, and the display area between the first position in the display screen 20 and the second end of the display screen 20 is the second display area 22.

[0060] In another embodiment of the present application, the first end of the display screen is received in the first side of the housing, and the second end of the display screen is received in the second side of the housing. The second display area includes a first sub-display area and a second sub-display area. The first sub-display area and the second sub-display area are located on both sides of the first display area in a first direction. In this embodiment, the at least one conductor member includes at least two conductor members. At least a part of the at least two conductor members is located on the first side of the housing, denoted as the first conductor member, and at least a part is located on the second side of the housing, denoted as the second conductor member. The driving circuit determines the position corresponding to the first conductor member in the display screen based on the touch signal between the first conductor member and the touch detection element in the display screen, denoted as the second position, and determines the position corresponding to the second conductor member in the display screen based on the touch signal between the second conductor member and the touch detection element in the display screen, denoted as the third position. Then, the first display area is between the second position and the third position of the display screen, the first sub-display area is between the second position and the second end of the display screen, and the second sub-display area is between the first position and one end of the display screen.

[0061] It should be noted that in the above embodiments, the positions of the first display area and the second display area in the display area of the display screen are determined by the touch signal between the at least one conductor member and the touch detection element in the display screen. In other embodiments of the present application, the positions of the first display area and the second display area in the display area of the display screen can also be determined by other means.

[0062] Optionally, in an embodiment of the present application, as Figure 15As shown, the detection element includes a resistance element 52, and the resistance element 52 is fixedly connected to the side of the second display area 22 away from the first display area 21; in this embodiment, the driving circuit 30 is further configured to determine the positions of the first display area 21 and the second display area 22 in the display area of the display screen 20 based on the resistance change of the resistance element 52.

[0063] Specifically, on the basis of the above embodiment, in an embodiment of the present application, continue as Figure 15 As shown, the first end of the display screen 20 is received in the housing 10, the second end is fixed to the second side 12 of the housing 10, and the second display area 22 is located on the side of the first display area 21 away from the second side 12 of the housing 10; in this embodiment, one end of the resistance element 52 is fixedly connected to the first end of the display screen 20, and the other end is fixed in the housing 10. When the display area in the display area of the display screen 20 between the second end of the display screen 20 and the first side 11 of the housing 10 increases (i.e., the area of the first display area 21 increases), the resistance of the resistance element 52 changes along the third direction A1. When the display area in the display area of the display screen 20 between the second end of the display screen 20 and the first side 11 of the housing 10 decreases (i.e., the area of the first display area 21 decreases), the resistance of the resistance element 52 changes along the fourth direction, so that the driving circuit 30 can determine the positions of the first display area 21 and the second display area 22 in the display area of the display screen 20 based on the resistance change of the resistance element 52. Wherein, the third direction and the fourth direction are opposite.

[0064] On the basis of the above embodiment, in an embodiment of the present application, continue as Figure 15 As shown, the resistance element 52 includes a resistance wire. When the area of the first display area 21 increases, the length of the resistance wire increases, and the resistance of the resistance element 52 increases. When the area of the first display area 21 is small, the length of the resistance wire decreases, and the resistance of the resistance element 52 decreases; therefore, in this embodiment, the driving circuit 30 can determine the positions of the first display area 21 and the second display area 22 in the display area of the display screen based on the resistance change of the resistance wire.

[0065] In another embodiment of the present application, as Figure 16As shown, the resistance element includes a slide rheostat 53. One end of the second display area 22 away from the first display area 21 is fixedly connected to the moving end of the slide rheostat 53. When the area of the first display area 21 changes, the sliding end of the slide rheostat 53 slides on the slide rheostat 53, so that the resistance length of the slide rheostat 53 connected to the circuit changes. Specifically, when the length of the slide rheostat 53 connected to the circuit increases, the resistance of the slide rheostat 53 increases; when the length of the slide rheostat 53 connected to the circuit decreases, the resistance of the slide rheostat 53 decreases. Therefore, in this embodiment, based on the resistance change of the slide rheostat 53, the driving circuit 30 can determine the positions of the first display area 21 and the second display area 22 in the display area of the display screen 20.

[0066] It should be noted that in the above embodiment, if one end of the slide rheostat close to the first side of the housing and the sliding end of the slide rheostat are connected to the circuit, the area of the first display area increases, the length of the slide rheostat connected to the circuit decreases, the area of the first display area decreases, and the length of the slide rheostat connected to the circuit increases; if one end of the slide rheostat close to the second side of the housing and the sliding end of the slide rheostat are connected to the circuit, the area of the first display area increases, the length of the slide rheostat connected to the circuit increases, the area of the first display area decreases, and the length of the slide rheostat connected to the circuit decreases.

[0067] In another embodiment of the present application, the first end of the display screen is fixedly connected to the first side of the housing, and the second end is received in the housing. The second display area is located on the side of the first display area away from the first side of the housing. In this embodiment, one end of the resistance element is fixedly connected to the second end of the display screen, and the other end is fixed in the housing. When the display area between the first end of the display screen and the second side of the housing in the display area of the display screen increases (that is, the electrodes of the first display area increase), the resistance of the resistance element changes along the third direction. When the display area between the first end of the display screen and the second side of the housing in the display area of the display screen decreases (that is, the area of the first display area), the resistance of the resistance element changes along the fourth direction, so that the driving circuit can determine the positions of the first display area and the second display area in the display area of the display screen based on the resistance change of the resistance element. Among them, the third direction and the fourth direction are opposite.

[0068] Based on the above embodiments, in an embodiment of the present application, the resistance element includes a resistance wire. When the area of the first display region increases, the length of the resistance wire increases, and the resistance of the resistance element increases. When the area of the first display region is small, the length of the resistance wire decreases, and the resistance of the resistance element decreases; therefore, in this embodiment, the driving circuit can determine the positions of the first display region and the second display region in the display region of the display screen based on the resistance change of the resistance wire.

[0069] In another embodiment of the present application, the resistance element includes a sliding rheostat. One end of the second display region far from the first display region is fixedly connected to the moving end of the sliding rheostat. When the area of the first display region changes, the sliding end of the sliding rheostat slides on the sliding rheostat, so that the resistance length of the sliding rheostat connected to the circuit changes. Specifically, when the length of the sliding rheostat connected to the circuit increases, the resistance of the sliding rheostat increases; when the length of the sliding rheostat connected to the circuit decreases, the resistance of the sliding rheostat decreases; therefore, in this embodiment, the driving circuit can determine the positions of the first display region and the second display region in the display region of the display screen based on the resistance change of the sliding rheostat.

[0070] It should be noted that in the above embodiments, if one end of the sliding rheostat close to the first side of the housing and the sliding end of the sliding rheostat are connected to the circuit, the area of the first display region increases, the length of the sliding rheostat connected to the circuit increases, the area of the first display region decreases, and the length of the sliding rheostat connected to the circuit decreases; if one end of the sliding rheostat close to the second side of the housing and the sliding end of the sliding rheostat are connected to the circuit, the area of the first display region increases, the length of the sliding rheostat connected to the circuit decreases, the area of the first display region decreases, and the length of the sliding rheostat connected to the circuit increases.

[0071] In yet another embodiment of the present application, the detection element includes: an infrared signal detection element, which is fixed on the first side and / or the second side of the housing, and is used to emit an infrared signal to the second side and / or the first side of the housing and receive the infrared signal reflected by the second side and / or the first side of the housing. Specifically, as Figure 17As shown, when the infrared signal detection element 54 is fixed to the first side 11 of the housing 10, the infrared signal detection element 54 is used to emit an infrared signal towards the second side 12 of the housing 10 and receive the infrared signal reflected by the second side 12 of the housing 10; when the infrared signal detection element is fixed to the second side of the housing, the infrared signal detection element is used to emit an infrared signal towards the first side of the housing and receive the infrared signal reflected by the first side of the housing. In this embodiment, the driving circuit is further configured to determine the distance between the first side and the second side of the housing based on the infrared signal emitted and received by the infrared signal detection element, so as to determine the positions of the first display area and the second display area in the display area of the display screen. Specifically, continue as Figure 17 As shown, the area between the first side 11 and the second side 12 of the housing 10 is the first display area 21, and the display area of the display screen 20 excluding the first display area 21 is the second display area 22.

[0072] Optionally, in an embodiment of the present application, the infrared signal detection element is an infrared sensor, but the present application does not limit this, and it depends on the specific situation.

[0073] Based on any of the above embodiments, in an embodiment of the present application, the driving circuit further determines the refresh frequency of the first display area based on the area of the first display area, and provides a driving signal to the first display area at a refresh frequency corresponding to the area of the first display area, so as to balance the display requirements of the display screen and the power consumption of the display device.

[0074] Optionally, in an embodiment of the present application, when the area of the first display area is less than a first preset value, the driving circuit provides a driving signal to the first display area at a first refresh frequency, and when the area of the first display area is greater than a second preset value, the driving circuit provides a driving signal to the first display area at a second refresh frequency, where the second preset value is not less than the first preset value, and the first refresh frequency is greater than the second refresh frequency, so as to use a larger refresh frequency to provide a driving signal to the first display area when the area of the first display area is small, improve the display quality of the display screen of the first display area, and use a smaller refresh frequency to provide a driving signal to the first display area when the area of the first display area is large, so as to improve the battery life of the display device. However, the present application does not limit this, and in other embodiments of the present application, the driving circuit may also determine the refresh frequency of the first display area and provide a driving signal to the first display area in other ways, depending on the specific situation.

[0075] Based on the above embodiments, in an embodiment of the present application, when the area of the first display area is less than a third preset value, the driving circuit provides a driving signal to the first display area at a third refresh frequency, where the third preset value is less than the first preset value, and the third refresh frequency is less than the first refresh frequency. When the display device displays reminder information such as time and weather, a driving signal is provided to the first display area at a relatively low refresh frequency, thereby reducing the power consumption of the display device.

[0076] Based on any of the above embodiments, in an embodiment of the present application, when the area of the first display area gradually increases, the driving circuit provides a driving signal to the first display area at a fourth refresh frequency, and when the area of the first display area increases to a fourth preset value and remains unchanged, the driving circuit provides a driving signal to the first display area at a fifth refresh frequency, where the fourth refresh frequency is greater than the fifth refresh frequency. Thus, when the area of the first display area gradually increases, a driving signal is provided to the first display area at a relatively high refresh frequency, and when the area of the first display area increases to the final required fourth preset value, a driving signal is provided to the first display area at a fifth refresh frequency lower than the fourth refresh frequency, so as to provide a smoother stretching visual experience for the user when the first display area is displaying a picture and the area of the first display area is gradually increasing.

[0077] In another embodiment of the present application, the driving circuit also determines a display mode corresponding to the area based on the area of the first display area, and provides a driving signal to the first display area at a refresh frequency corresponding to the display mode. For example, when the area of the first display area is a fifth preset value, the driving circuit determines that the display mode of the first display area is a movie mode based on the area of the first display area, and thus provides a driving signal to the first display area at a refresh frequency matching the movie viewing mode; when the area of the first display area is a sixth preset value, the driving circuit determines that the display mode of the first display area is a game mode based on the area of the first display area, and thus provides a driving signal to the first display area at a refresh frequency matching the game viewing mode. Optionally, in an embodiment of the present application, when the display mode of the first display area is a movie viewing mode, the driving circuit provides a driving signal to the first display area at a refresh frequency of 24 frames per second, and when the display mode of the first display area is a game mode, the driving circuit provides a driving signal to the first display area at a refresh frequency of 120 frames per second, but the present application does not limit this, and it depends on the specific situation.

[0078] As can be seen from the above, in the display device provided by the embodiments of the present application, the driving circuit can provide a driving signal to the first display area at different refresh frequencies based on the area of the first display area, so as to enable users to obtain a better viewing experience.

[0079] In summary, when the display device provided by the embodiments of the present application is applied such that part of the display area is exposed outside the housing for displaying display content and part of the display area is received inside the housing and not used for displaying display content, the driving circuit controls only the first display area to display, and the second display area does not display, which can save the power consumption of the driving circuit for driving the second display area to display, thereby reducing the power consumption of the display device.

[0080] In addition, the embodiments of the present application further provide a driving method, which is applied to the display device provided in any of the above embodiments. Specifically, as Figure 18 described, the driving method includes:

[0081] S1: When scanning the first display area of the display screen, scan each display pixel row of the first display area of the display screen row by row, provide a driving signal to the first display area, and control the first display area to display.

[0082] S2: When scanning the second display area of the display screen, stop outputting the driving signal so as not to provide the driving signal to the second display area, and control the second display area not to display.

[0083] In the driving method provided by the embodiments of the present application, when driving a display device, if only part of the display area of the display device is used for displaying, only provide a driving signal to the part of the display device used for displaying, and do not provide a driving signal to the part of the display device not used for displaying, so as to reduce the power consumption of the display device.

[0084] Based on the above embodiments, in an embodiment of the present application, the display device further includes a detection element. In this embodiment, the driving method further includes: using the detection element in the display device to detect the positions of the first display area and the second display area in the display area of the display screen, so as to facilitate the driving circuit to determine the time period for outputting the driving signal and the time period for stopping outputting the driving signal.

[0085] Based on the above embodiments, in an embodiment of the present application, using the detection element in the display device to detect the positions of the first display area and the second display area in the display area of the display screen is also beneficial for the driving circuit to determine the area of the first display area, so as to determine the refresh frequency of the first display area based on the area of the first display area.

[0086] Optionally, based on the above embodiments, in an embodiment of the present application, when scanning the first display area of the display screen, each display pixel row of the first display area of the display screen is scanned row by row, and providing a driving signal to the first display area includes:

[0087] When scanning the first display area of the display screen, if the area of the first display area is less than a first preset value, each display pixel row of the first display area of the display screen is scanned row by row at a first refresh rate, and a driving signal is provided to the first display area;

[0088] If the area of the first display area is greater than a second preset value, each display pixel row of the first display area of the display screen is scanned row by row at a second refresh rate, and a driving signal is provided to the first display area;

[0089] Wherein, the second preset value is not less than the first preset value, and the first refresh rate is greater than the second refresh rate.

[0090] In the above embodiments, when the area of the first display area is small, a larger refresh rate is used to provide a driving signal to the first display area to improve the quality of the display screen of the first display area, and when the area of the first display area is large, a smaller refresh rate is used to provide a driving signal to the first display area to improve the battery life of the display device. However, the present application does not limit this. In other embodiments of the present application, the driving circuit can also determine the refresh rate of the first display area in other ways and provide a driving signal to the first display area, depending on the specific situation.

[0091] Based on the above embodiments, in an embodiment of the present application, when scanning the first display area of the display screen, each display pixel row of the first display area of the display screen is scanned row by row, and providing a driving signal to the first display area further includes: when scanning the first display area of the display screen, if the area of the first display area is less than a third preset value, each display pixel row of the first display area of the display screen is scanned row by row at a third refresh rate, and a driving signal is provided to the first display area, wherein the third preset value is less than the first preset value, and the third refresh rate is less than the first refresh rate, so as to use a smaller refresh rate to provide a driving signal to the first display area when the display device displays reminder information such as time and weather, thereby reducing the power consumption of the display device. For example, when the display device is lit and only the display information on the main page of the top display area is displayed, a smaller third refresh rate is used to provide a driving signal to the first display area, thereby reducing the power consumption of the display device.

[0092] In another embodiment of the present application, when scanning the first display area of the display screen, each display pixel row of the first display area of the display screen is scanned row by row, and providing a driving signal to the first display area includes: when scanning the first display area of the display screen, if the area of the first display area gradually increases, each display pixel row of the first display area of the display screen is scanned row by row at a fourth refresh frequency, and a driving signal is provided to the first display area; if the area of the first display area increases to a fourth preset value and remains unchanged, each display pixel row of the first display area of the display screen is scanned row by row at a fifth refresh frequency, and a driving signal is provided to the first display area, where the fourth refresh frequency is greater than the fifth refresh frequency. Thus, when the area of the first display area gradually increases, a driving signal is provided to the first display area at a higher refresh frequency, and when the area of the first display area increases to the fourth preset value of the final requirement, a driving signal is provided to the first display area at a fifth refresh frequency lower than the fourth refresh frequency. Furthermore, when a picture is being displayed in the first display area and the area of the first display area gradually increases, a smoother stretching visual experience is provided to the user.

[0093] In yet another embodiment of the present application, when scanning the first display area of the display screen, each display pixel row of the first display area of the display screen is scanned row by row, and providing a driving signal to the first display area includes: when scanning the first display area of the display screen, a display mode corresponding to the area is determined based on the area of the first display area, and each display pixel row of the first display area of the display screen is scanned row by row at the refresh frequency corresponding to the display mode, and a driving signal is provided to the first display area, thereby taking into account both the viewing experience and power consumption of the display device.

[0094] For example, when the area of the first display area is a fifth preset value, the driving circuit determines, based on the area of the first display area, that the display mode of the first display area is the movie mode, and thus provides a driving signal to the first display area at a refresh frequency matching the movie viewing mode; when the area of the first display area is a sixth preset value, the driving circuit determines, based on the area of the first display area, that the display mode of the first display area is the game mode, and thus provides a driving signal to the first display area at a refresh frequency matching the game viewing mode. Optionally, in an embodiment of the present application, when the display mode of the first display area is the movie viewing mode, the driving circuit provides a driving signal to the first display area at a refresh frequency of 24 frames per second, and when the display mode of the first display area is the game mode, the driving circuit provides a driving signal to the first display area at a refresh frequency of 120 frames per second. However, the present application does not limit this, and it depends on the specific situation.

[0095] In summary, for the driving method provided by the embodiments of the present application, when driving a display device, if only a partial display area of the display device is used for display, only a driving signal is provided to the part of the display device used for display, and no driving signal is provided to the part of the display device not used for display, so as to reduce the power consumption of the display device.

[0096] In this specification, each part is described in a combined way of parallel and progressive. The key point of each part is the difference from other parts. For the same or similar parts among each part, reference can be made to each other.

[0097] Regarding the above description of the disclosed embodiments, the features described in each embodiment of this specification can be replaced or combined with each other, so that those skilled in the art can implement or use the present application. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A display device, characterized in that, Comprising: A housing, the housing including a first side and a second side opposite to each other in a first direction; A display screen, the display screen having a first end and a second end, at least one of the first end and the second end being received in the housing. Wherein, in the display area of the display screen, a first display area is located between the first side and the second side, and a second display area in the display area of the display screen is received in the housing; A driving circuit, the driving circuit being configured to provide a driving signal to the first display area and control the first display area to display when the display screen displays an image, and not provide a driving signal to the second display area; When the area of the first display area gradually increases, the driving circuit provides a driving signal to the first display area at a fourth refresh frequency. When the area of the first display area increases to a fourth preset value and remains unchanged, a driving signal is provided to the first display area at a fifth refresh frequency, wherein the fourth refresh frequency is greater than the fifth refresh frequency.

2. The display device according to claim 1, wherein The display screen has a plurality of scan lines extending in a second direction and a plurality of data lines extending in the first direction, the second direction intersecting the first direction.

3. The display device according to claim 2, wherein The driving circuit is configured to provide a scan driving signal to the scan lines of the first display area and control the first display area to display, and not provide a scan driving signal to the scan lines of the second display area.

4. The display device according to claim 3, wherein The driving circuit includes a first circuit and a second circuit, the first circuit being configured to provide the scan driving signal required for the display area of the display screen, and the second circuit being configured to control the conduction state of the path between the first circuit and the display area of the display screen.

5. The display device according to claim 4, characterized in that, When the second circuit is in a conducting state, the first circuit provides a scan driving signal to the first display area and does not provide a scan driving signal to the second circuit.

6. The display device according to claim 4, wherein The first circuit provides a scan driving signal to the first display area and the second display area, and the second circuit is in a conducting state when the first circuit provides a scan driving signal to the first display area, and is in a cut-off state when the first circuit provides a scan driving signal to the second display area.

7. The display device according to any one of claims 1-6, characterized in that, Further comprising: A detection element, the detection element being configured to determine the positions of the first display area and the second display area in the display area of the display screen.

8. The display device according to claim 7, characterized in that, The display screen has a touch detection element, and the detection element includes: At least one conductor member, the at least one conductor member being fixed to the first side and / or the second side of the housing, and there being a touch signal between the at least one conductor member and the touch detection element; The driving circuit is further configured to determine the boundary line between the first display area and the second display area based on the touch signal to determine the positions of the first display area and the second display area in the display area of the display screen.

9. The display device according to claim 7, characterized in that, The detection element includes: A resistance element, the resistance element being fixedly connected to one end of the second display area away from the first display area; The driving circuit is further configured to determine the positions of the first display area and the second display area in the display area of the display screen based on the resistance change of the resistance element.

10. The display device according to claim 9, wherein The resistance element includes a resistance wire. When the area of the first display area increases, the length of the resistance wire increases; when the area of the first display area decreases, the length of the resistance wire decreases. The driving circuit determines the positions of the first display area and the second display area in the display area of the display screen based on the resistance change of the resistance wire.

11. The display device according to claim 9, wherein The resistance element includes a slide rheostat. One end of the second display area far from the first display area is fixedly connected to the sliding end of the slide rheostat. When the area of the first display area changes, the sliding end of the slide rheostat slides on the slide rheostat. The driving circuit determines the positions of the first display area and the second display area in the display area of the display screen based on the resistance change of the slide rheostat.

12. The display device according to claim 7, wherein The detection element includes: An infrared signal detection element, which is fixed on the first side and / or the second side of the housing, and is configured to emit an infrared signal to the second side and / or the first side of the housing, and receive the infrared signal reflected by the second side and / or the first side of the housing. The driving circuit is further configured to determine the distance between the first side and the second side based on the infrared signal emitted and received by the infrared signal detection element, so as to determine the positions of the first display area and the second display area in the display area of the display screen.

13. The display device according to claim 1, wherein When the area of the first display area is less than a first preset value, the driving circuit provides a driving signal to the first display area at a first refresh frequency; when the area of the first display area is greater than a second preset value, the driving circuit provides a driving signal to the first display area at a second refresh frequency. The second preset value is not less than the first preset value, and the first refresh frequency is greater than the second refresh frequency.

14. The display device according to claim 13, wherein When the area of the first display area is less than a third preset value, the driving circuit further provides a driving signal to the first display area at a third refresh frequency. The third preset value is less than the first preset value, and the third refresh frequency is less than the first refresh frequency.

15. The display device according to claim 1, characterized in that, The driving circuit further determines a display mode corresponding to the area based on the area of the first display area, and provides a driving signal to the first display area at the refresh frequency corresponding to the display mode.

16. A driving method, characterized in that, Applied to the display device according to any one of claims 1-15, the method includes: When scanning the first display area of the display screen, scanning each display pixel row of the first display area of the display screen row by row, providing a driving signal to the first display area, and controlling the first display area to display. When scanning the second display area of the display screen, stop outputting the driving signal so as not to provide a driving signal to the second display area. Wherein, when scanning the first display area of the display screen, scanning each display pixel row of the first display area of the display screen row by row and providing a driving signal to the first display area includes: When scanning the first display area of the display screen, if the area of the first display area gradually increases, scan each display pixel row of the first display area of the display screen line by line at a fourth refresh frequency, and provide a driving signal to the first display area; if the area of the first display area increases to a fourth preset value and remains unchanged, scan each display pixel row of the first display area of the display screen line by line at a fifth refresh frequency, and provide a driving signal to the first display area, where the fourth refresh frequency is greater than the fifth refresh frequency.

17. The driving method according to claim 16, wherein The method further includes: Using a detection element in the display device, detecting the positions of the first display area and the second display area in the display area of the display screen.

18. The driving method according to claim 16, characterized in that, When scanning the first display area of the display screen, scanning each display pixel row of the first display area of the display screen line by line and providing a driving signal to the first display area includes: When scanning the first display area of the display screen, if the area of the first display area is less than a first preset value, scan each display pixel row of the first display area of the display screen line by line at a first refresh frequency, and provide a driving signal to the first display area; If the area of the first display area is greater than a second preset value, scan each display pixel row of the first display area of the display screen line by line at a second refresh frequency, and provide a driving signal to the first display area; where the second preset value is not less than the first preset value, and the first refresh frequency is greater than the second refresh frequency.

19. The driving method according to claim 18, characterized in that, When scanning the first display area of the display screen, scanning each display pixel row of the first display area of the display screen line by line and providing a driving signal to the first display area further includes: When scanning the first display area of the display screen, if the area of the first display area is less than a third preset value, scan each display pixel row of the first display area of the display screen line by line at a third refresh frequency, and provide a driving signal to the first display area, the third preset value is less than the first preset value, and the third refresh frequency is less than the first refresh frequency.

20. The driving method according to claim 16, characterized in that, When scanning the first display area of the display screen, scanning each display pixel row of the first display area of the display screen line by line and providing a driving signal to the first display area includes: When scanning the first display area of the display screen, determining the display mode corresponding to the area based on the area of the first display area, and scanning each display pixel row of the first display area of the display screen line by line at the refresh frequency corresponding to the display mode, and providing a driving signal to the first display area.

Images