Display panel and display device

Abstract

The application discloses a display panel and a display device. The peep-proof control module comprises a first peep-proof control unit and a second peep-proof control unit. The first peep-proof control unit is used for controlling display selection units in a plurality of first sub-pixels in a first display area to receive corresponding peep-proof control signals according to a first switch signal. The second peep-proof control unit is used for controlling display selection units in a plurality of second sub-pixels in a second display area to receive corresponding peep-proof control signals according to a second switch signal, so that the display selection units of the first sub-pixels and the display selection units of the second sub-pixels respectively control the time when the driving current flows through the first light-emitting devices for realizing peep-proof display according to the corresponding peep-proof control signals, thereby realizing the controllable light-emitting of the first light-emitting devices in the first display area and the first light-emitting devices in the second display area, and then facilitating the support for realizing the partitioned peep-proof display.

Description

Technical Field

[0001] This application relates to the field of display technology, and more particularly to a display panel and display device. Background Technology

[0002] In the daily use of display devices, scenarios involving personal and confidential information frequently arise. To protect these information, the display device must meet privacy protection requirements. However, when implementing privacy protection on display devices, only full-screen privacy protection can be achieved; it's not possible to implement privacy protection for specific areas. Summary of the Invention

[0003] This application provides a display panel and display device for enabling the display panel to support privacy-protected display in a portion of the area.

[0004] This application provides a display panel having at least a first display area and a second display area. The display panel includes multiple sub-pixels and a privacy control module. The multiple sub-pixels include multiple first sub-pixels located in the first display area and multiple second sub-pixels located in the second display area. Each sub-pixel includes at least a first light-emitting device, a pixel driving circuit, and a display selection unit. The first light-emitting device is used to implement privacy display. The pixel driving circuit is configured to generate a driving current to drive the first light-emitting device to emit light. The display selection unit is electrically connected between the pixel driving circuit and the first light-emitting device and is configured to control the timing of the driving current flowing through the first light-emitting device according to a corresponding privacy control signal. The privacy control module includes multiple privacy control units. The multiple privacy control units include a first privacy control unit electrically connected to the display selection units of the multiple first sub-pixels and a second privacy control unit electrically connected to the display selection units of the multiple second sub-pixels. The first privacy control unit is configured to control the display selection units in the multiple first sub-pixels to receive a corresponding privacy control signal according to a first switch signal. The second privacy control unit is configured to control the display selection units in the multiple second sub-pixels to receive a corresponding privacy control signal according to a second switch signal.

[0005] This application also provides a display device, including any of the above-described display panels and a display driving module. The display driving module is electrically connected to the display panel and is configured to provide a corresponding privacy control signal to the display panel.

[0006] In the above technical solution, by including a first privacy control unit and a second privacy control unit in the privacy control module, the first privacy control unit controls the display selection unit in a plurality of first sub-pixels in the first display area to receive the corresponding privacy control signal according to the first switch signal, and the second privacy control unit controls the display selection unit in a plurality of second sub-pixels in the second display area to receive the corresponding privacy control signal according to the second switch signal. This allows the display selection units in the first and second display areas to control the timing of the driving current flowing through the first light-emitting device used to realize privacy display according to the corresponding privacy control signal, thereby making the light emission period of the first light-emitting device in the first and second display areas controllable, which is beneficial for supporting the realization of partitioned privacy design. Attached Figure Description

[0007] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0008] Figure 1 This is a schematic diagram of the structure of a display panel according to an exemplary embodiment of this disclosure; Figures 2A-2B This is a schematic block diagram of a sub-pixel according to an exemplary embodiment of this disclosure; Figures 3A-3B This is a circuit diagram of a pixel driving circuit and a display selection unit according to an exemplary embodiment of this disclosure; Figures 4A-4C This is a signal timing diagram corresponding to a sub-pixel in an exemplary embodiment of this disclosure; Figures 5A-5F This is a schematic diagram showing the connection between multiple display areas and the privacy control unit in an exemplary embodiment of this disclosure; Figure 6 This is a schematic diagram of the structure of a display device according to an exemplary embodiment of the present disclosure.

[0009] The realization of the objectives, functional features and advantages of the embodiments of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0010] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0011] It should be noted that the electrical connection referred to in this application can include direct connection and indirect connection. Indirect connection can include connections between connected modules, devices, and nodes implemented through electrical components, wired or wireless media, etc. Electrical connection can refer to a physically existing connection or a connection established through a signal. The effective level of a signal can be the level that enables or turns on a device controlled by that signal, and the ineffective level of a signal can be the level that turns off or turns off a device controlled by that signal. The effective level of a signal can be either a high level or a low level, and the ineffective level of a signal can be either a high level or a low level.

[0012] Furthermore, descriptions involving "first," "second," etc., in the embodiments of this application are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified. The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict. Each technical feature in this application can be applied to achieve different combinations, and is not limited to the technical solutions formed by the combinations listed in the embodiments. Technical solutions between various embodiments can be combined, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application. The terms "optionally" and "in some embodiments" used in this application indicate that the technical content they refer to can be selectively configured.

[0013] Furthermore, the descriptions provided in the Background section should not be presumed to be prior art simply because they are mentioned in or associated with the description in the Background section. The Background section may include information describing one or more aspects of the subject matter, and the description in this section does not limit the invention.

[0014] Figure 1 This is a schematic diagram of the structure of a display panel according to an exemplary embodiment of this disclosure. Figures 2A-2B This is a schematic block diagram of a subpixel according to an exemplary embodiment of this disclosure. This application provides a display panel including a plurality of subpixels Spx, which are used to implement the display function of the display panel according to corresponding data signals and scan signals.

[0015] Optionally, the sub-pixel Spx includes at least one light-emitting device, which can be used to emit light to realize the display function of the sub-pixel Spx. The light-emitting device may include at least one of organic light-emitting diodes, sub-millimeter light-emitting diodes, and micro light-emitting diodes.

[0016] In some embodiments, to achieve a privacy display, each sub-pixel Spx may include at least a first light-emitting device LE1, which is used to achieve the privacy display. The light-emitting device mentioned above includes the first light-emitting device LE1.

[0017] To achieve emission control of the first light-emitting device LE1, the sub-pixel Spx may further include a pixel driving circuit 10 and a display selection unit 20. The pixel driving circuit 10 is configured to generate a driving current to drive the first light-emitting device LE1 to emit light. The display selection unit 20 is electrically connected between the pixel driving circuit 10 and the first light-emitting device LE1. The display selection unit 20 is configured to control the timing of the driving current flowing through the first light-emitting device LE1 according to the corresponding privacy control signal Pcs. By configuring the pixel driving circuit 10 and the display selection unit 20, the first light-emitting device LE1 can emit light or not emit light under the action of the privacy control signal Pcs, thereby achieving control of the privacy display.

[0018] It should be understood that any pixel driving circuit 10 that can generate a driving current based on the data signal Vda can be used in this application. Therefore, the pixel driving circuit 10 can adopt different design forms.

[0019] Please continue reading. Figure 1 The display panel has multiple display areas AA, each of which includes multiple sub-pixels Spx. The display panel also includes a privacy control module Pcm, which includes multiple privacy control units Pcu. Each privacy control unit Pcu is used to control the display selection unit 20 in the multiple sub-pixels Spx of a display area AA to receive the corresponding privacy control signal Pcs according to the corresponding switch signal Sw. The privacy control signals Pcs corresponding to at least two display areas AA are independent of each other, so that at least two display areas AA can achieve a partitioned privacy design in at least one frame of time period.

[0020] Taking a display panel having at least a first display area AA1 and a second display area AA2 as an example, the multiple sub-pixels Spx may include multiple first sub-pixels Spx1 located in the first display area AA1 and multiple second sub-pixels Spx2 located in the second display area AA2. The multiple privacy control units Pcu may include a first privacy control unit Pcu1 and a second privacy control unit Pcu2. The first privacy control unit Pcu1 is electrically connected to the display selection units 20 of multiple first sub-pixels Spx1, and the second privacy control unit Pcu2 is electrically connected to the display selection units 20 of multiple second sub-pixels Spx2. The first privacy control unit Pcu1 is configured to control the display selection units 20 of multiple first sub-pixels Spx1 to receive the corresponding privacy control signal Pcs according to the first switch signal Sw1. The second privacy control unit Pcu2 is configured to control the display selection units 20 of multiple second sub-pixels Spx2 to receive the corresponding privacy control signal Pcs according to the second switch signal Sw2. This allows the display selection units 20 located in the first display area AA1 and the display selection units 20 located in the second display area AA2 to control the timing of the driving current flowing through the first light-emitting device LE1 used to realize privacy display according to the corresponding privacy control signal Pcs. This makes the light-emitting period of the first light-emitting device LE1 located in the first display area AA1 and the light-emitting period of the first light-emitting device LE1 located in the second display area AA2 controllable, thereby supporting the display panel to realize a zoned privacy design.

[0021] When the display panel is displayed, for at least one frame of display duration, the anti-spy control signal Pcs corresponding to the first display area AA1 and the anti-spy control signal Pcs corresponding to the second display area AA2 exhibit different timing sequences, so that at least one of the first display area AA1 and the second display area AA2 can achieve anti-spy display in at least one frame.

[0022] It should be noted that the first display area AA1 and the second display area AA2 can be adjacent along the first direction Dr1, where Dr1 is either the row direction or the column direction. The first sub-pixel Spx1 and the second sub-pixel Spx2 can adopt the same design form to reduce the manufacturing cost of the display panel and to facilitate the realization that the first display area AA1 and the second display area AA2 have similar electrical characteristics.

[0023] In some embodiments, each privacy control unit Pcu includes a first control subunit 301, and each display selection unit 20 includes a first selection subunit 201. The first selection subunit 201 is electrically connected between the corresponding pixel driving circuit 10 and the first light-emitting device LE1, and is electrically connected to the corresponding first control subunit 301. The first selection subunit 201 is configured to control the timing of the driving current flowing through the first light-emitting device LE1 according to the corresponding privacy control signal Pcs. Each first control subunit 301 is configured to control the corresponding plurality of sub-pixels Spx to receive the corresponding privacy control signal Pcs according to the corresponding switching signal.

[0024] Taking the display panel as an example, which includes a first display area AA1 and a second display area AA2, the first control subunit 301 of the first privacy control unit Pcu1 is configured to control the first selection subunit 201 of a plurality of first sub-pixels Spx1 to receive the corresponding privacy control signal Pcs according to the first switch signal Sw1. The first control subunit 301 of the second privacy control unit Pcu2 is configured to control the first selection subunit 201 of a plurality of second sub-pixels Spx2 to receive the corresponding privacy control signal Pcs according to the second switch signal Sw2. This achieves mutual independence between the light emission control of the first light-emitting device LE1 included in the first sub-pixel Spx1 and the light emission control of the first light-emitting device LE1 included in the second sub-pixel Spx2, thereby facilitating the implementation of a partitioned privacy design for the display panel.

[0025] In some embodiments, the first control subunit 301 may include at least one switching device, each switching device controlling the corresponding first selection subunit 201 to receive a corresponding privacy control signal Pcs according to a corresponding switching signal Sw. Each switching device can be implemented as a device with switching function, such as a transistor or other device.

[0026] In some embodiments, the first selection subunit 201 may be implemented as a device having a switching function.

[0027] like Figures 3A-3B The following is a circuit diagram of a pixel driving circuit and a display selection unit according to an exemplary embodiment of this disclosure. To facilitate understanding of this application, the implementation of the pixel driving circuit 10 and the display selection unit 20 will be described first by way of example.

[0028] The pixel driving circuit 10 may include a driving transistor Tdr, a data transistor Tda, a compensation transistor Tc, a first light-emitting control transistor Tl1, a second light-emitting control transistor Tl2, a first reset transistor Ti1, a second reset transistor Ti2, and a storage capacitor Cst. The control terminal of the driving transistor Tdr is electrically connected to the first source-drain terminals of the compensation transistor Tc, the first source-drain terminals of the first reset transistor Ti1, and the first terminal of the storage capacitor Cst. The first source-drain terminal of the driving transistor Tdr is electrically connected to the first source-drain terminals of the first light-emitting control transistor Tl1 and the first source-drain terminal of the data transistor Tda. The second source-drain terminal of the driving transistor Tdr is electrically connected to the second source-drain terminal of the compensation transistor Tc and the first source-drain terminal of the second light-emitting control transistor Tl2. The driving transistor Tdr is configured to generate a driving current based on the corresponding data signal Vda to drive the first light-emitting device LE1 to emit light. The control terminals of the data transistor Tda and the compensation transistor Tc are configured to receive a first scan signal Scan1, and the second source-drain terminal of the data transistor Tda is configured to receive the corresponding data signal Vda. The control terminal of the first reset transistor Ti1 is configured to receive the second scan signal Scan2, and the second source-drain terminal of the first reset transistor Ti1 is configured to receive the first reset signal Vi1. The control terminal of the second reset transistor Ti2 is configured to receive the reset control signal RST, and the first source-drain terminal of the second reset transistor Ti2 is configured to receive the second reset signal Vi2. The second source-drain terminal of the second reset transistor Ti2 and the second source-drain terminal of the second light-emitting control transistor Tl2 are electrically connected to the display selection unit 20. The second terminal of the storage capacitor Cst and the second source-drain terminal of the first light-emitting control transistor Tl1 are electrically connected to the first power supply terminal Vdd.

[0029] Each first selection subunit 201 may include a first transistor T1. The control terminal of the first transistor T1 is configured to receive a corresponding privacy control signal Pcs. The first source-drain terminal of the first transistor T1 is electrically connected to the second source-drain terminal of the corresponding second light-emitting control transistor T12 and the second source-drain terminal of the second reset transistor Ti2. The second source-drain terminal of the first transistor T1 is electrically connected to the anode of the first light-emitting device LE1, and the cathode of the first light-emitting device LE1 is electrically connected to the second power supply terminal Vss. The voltage of the first power signal supplied by the first power supply terminal Vdd is greater than the voltage of the second power signal supplied by the second power supply terminal Vss.

[0030] In some embodiments, multiple sub-pixels Spx share the same reset control signal RST in order to reduce the power consumption of the display panel.

[0031] Figures 4A-4C This is a signal timing diagram corresponding to a sub-pixel according to an exemplary embodiment of this disclosure. Each transistor included in the sub-pixel Spx is a P-type transistor, combined with... Figures 4A-4C The working principle of the pixel driving circuit 10 and the display selection unit 20 will be explained using the timing as an example.

[0032] During the first time period t1: the reset control signal RST is low, the first scan signal Scan1 and the second scan signal Scan2 are high, and the second reset transistor Ti2 is turned on.

[0033] During the second time period t2: the second scan signal Scan2 is at a low level, and the first reset transistor Ti1 is turned on to reset the control terminal potential of the driving transistor Tdr.

[0034] During the third time period t3: the first scan signal Scan1 is at a low level, and the data transistor Tda and the compensation transistor Tc are turned on to transmit the corresponding data signal Vda to the control terminal of the drive transistor Tdr.

[0035] During the light-emitting period t4: the light-emitting control signal EM controls the first light-emitting control transistor Tl1 and the second light-emitting control transistor Tl2 to conduct. When the privacy control signal Pcs corresponding to the sub-pixel Spx is low, the first light-emitting device LE1 emits light to achieve privacy display on the display panel (i.e., Figures 4A-4B The time period corresponding to stage tA shown.

[0036] like Figures 5A-5F This is a schematic diagram showing the connection between multiple display areas and the privacy control unit in an exemplary embodiment of this disclosure. To facilitate understanding of the privacy display design of this application, let's first look at... Figures 5A-5B The design shown is used as an example for illustration.

[0037] Please continue reading. Figure 5A The first direction Dr1 corresponds to the row direction, and the second direction Dr2, which intersects with the first direction Dr1, corresponds to the column direction. The first control subunit 301 in the first privacy control unit Pcu1 includes a first switching device Ts1, which is controlled by a first switching signal Sw1. The first switching device Ts1 is used to control the control terminal of the first transistor T1 in multiple first sub-pixels Spx1 to receive a first sub-privacy control signal. The first control subunit 301 in the second privacy control unit Pcu2 includes a second switching device Ts2, which is controlled by a second switching signal Sw2. The second switching device Ts2 is used to control the control terminal of the first transistor T1 in multiple second sub-pixels Spx2 to receive a second sub-privacy control signal.

[0038] exist Figure 5AIn the first display area AA1, when the first light-emitting device LE1 needs to achieve a privacy display, the first switching signal Sw1 controls the first switching device Ts1 to connect the signal transmission between the first privacy control line Pcl1, which transmits the first sub-privacy control signal, and the control terminal of the first transistor T1 located in the first display area AA1. This causes the first transistor T1 in the first display area AA1 to conduct under the action of the first sub-privacy control signal, thereby allowing the first light-emitting device LE1 to be driven to emit light by the corresponding driving current. Similarly, when the first light-emitting device LE1 in the second display area AA2 needs to achieve a privacy display, the second switching signal Sw2 controls the second switching device Ts2 to connect the signal transmission between the second privacy control line Pcl2, which transmits the second sub-privacy control signal, and the control terminal of the first transistor T1 located in the second display area AA2. This causes the first transistor T1 in the second display area AA2 to conduct under the action of the first sub-privacy control signal, thereby allowing the first light-emitting device LE1 to be driven to emit light by the corresponding driving current. By controlling the operating states of the first switching device Ts1 and the second switching device Ts2, the first transistor T1 can be controlled to receive or not receive the privacy control signal Pcs. This allows the first transistor T1 to be turned on or off under the action of the corresponding privacy control signal Pcs, thereby making the privacy control of the first display area AA1 and the second display area AA2 independent. Therefore, Figure 5A It can achieve a privacy design with left and right partitions.

[0039] It should be noted that the timing of the first and second sub-spy control signals can be referenced. Figures 4A-4C The timing of the first privacy control signal Pcs1 is set separately, and the timing changes of the first sub-privacy control signal and the second sub-privacy control signal can be asynchronous. Figure 5A Only one first switching device Ts1 is shown for each pixel column of the first display area AA1. However, in some embodiments, one first switching device Ts1 can be set for each pixel column in the first display area AA1. Multiple first switching devices Ts1 are controlled by the same first switching signal Sw1, and the privacy control signal Pcs connected to the multiple first switching devices Ts1 is the same, so that the first light-emitting device LE1 of the first display area AA1 operates synchronously and the working pressure on the first switching devices Ts1 is distributed. Each pixel column extends along the second direction Dr2, and each pixel column includes multiple sub-pixels Spx. Similarly, a design can also be obtained where multiple second switching devices Ts2 are set for the second display area AA2.

[0040] and Figure 5A For designs that are similar, corresponding options can also be obtained. Figure 5BWhen the first display area AA1 and the second display area AA2 shown are adjacent along the first direction Dr1, and the first direction Dr1 is the column direction and the second direction Dr2 is the row direction, the privacy protection design of upper and lower partitions is realized.

[0041] It should be noted that, Figure 5B Only one first switching device Ts1 is shown for each pixel row of the first display area AA1. However, in some embodiments, a first switching device Ts1 can be set for multiple pixel rows in the first display area AA1, and the first switching device Ts1 is controlled by a first switching signal Sw1. Each pixel row extends along the second direction Dr2, and each pixel row includes multiple sub-pixels Spx. Similarly, a design can also be obtained where a second switching device Ts2 is set for the second display area AA2.

[0042] It should be understood that when multiple sub-pixels Spx in a display area need to implement a privacy display design, the privacy control signal Pcs corresponding to the display area can change to a level state that turns on the first transistor T1 at the beginning of the light-emitting period of the first pixel row of the display area, and the time when the privacy control signal Pcs corresponding to the display area changes from a level state that controls the multiple first transistors T1 to turn on to a level state that controls the multiple first transistors T1 to turn off is equal to or lags behind the end of the light-emitting period corresponding to the last pixel row of the display area.

[0043] In some embodiments, to simultaneously achieve left-right partitioned privacy display and top-bottom partitioned privacy display, the display panel may further have a third display area AA3. The third display area AA3 is adjacent to at least one of the first display area AA1 and the second display area AA2 along a second direction Dr2, and the second direction Dr2 intersects with the first direction Dr1. Multiple sub-pixels Spx may include multiple third sub-pixels Spx located in the first display area AA1. Multiple privacy control units Pcu may include a third privacy control unit Pcu3, which is electrically connected to the display selection units 20 of the multiple third sub-pixels Spx. The third privacy control unit Pcu3 is configured to control the display selection units 20 of the multiple third sub-pixels Spx to receive corresponding privacy control signals Pcs according to a third switch signal Sw3, so as to independently control the light emission of the first light-emitting devices LE1 included in each of the first sub-pixels Spx1 to the third sub-pixels Spx, thereby enabling the display panel to achieve a multi-partition privacy design.

[0044] Please continue reading. Figure 5CTaking the first direction Dr1 as the column direction and the second direction Dr2 as the row direction as an example, the first control subunit 301 in the first privacy control unit Pcu1 still includes the first switching device Ts1, and the first control subunit 301 in the second privacy control unit Pcu2 still includes the second switching device Ts2. The first control subunit 301 in the third privacy control unit Pcu3 includes the fifth switching device Ts5. The fifth switching device Ts5 is controlled by the third switching signal Sw3. The fifth switching device Ts5 is used to control the control terminal of the first transistor T1 in multiple third sub-pixels Spx to be electrically connected to the fifth control line Pcl5 that transmits the fifth sub-privacy control signal.

[0045] exist Figure 5C In the third display area AA3, when the first light-emitting device LE1 needs to achieve privacy protection, the third switch signal Sw3 can control the fifth switch device Ts5 to connect the signal transmission between the fifth privacy control line Pcl5, which transmits the fifth sub-privacy control signal, and the control terminal of the first transistor T1 in the third display area AA3. This allows the first transistor T1 in the third display area AA3 to conduct under the action of the fifth sub-privacy control signal, thereby driving the multiple first light-emitting devices LE1 in the third display area AA3 to emit light with the corresponding drive current. By controlling the operating states of the first switch device Ts1, the second switch device Ts2, and the fifth switch device Ts5, the first transistor T1 in the first display areas AA1 to AA3 can be controlled to receive or not receive the corresponding privacy control signal Pcs, thus allowing the first transistor T1 in the first display areas AA1 to AA3 to conduct or cut off under the action of the corresponding privacy control signal Pcs, thereby making the privacy control of the first display areas AA1 to AA3 independent. Therefore, Figure 5C It can achieve both top and bottom partition privacy design and left and right partition privacy design.

[0046] It should be noted that, Figure 5C Only one fifth switching device Ts5 is shown for each of the multiple pixel columns in the third display area AA3. However, in some embodiments, a fifth switching device Ts5 can still be set for each pixel column in the third display area AA3. The multiple fifth switching devices Ts5 are controlled by the same third switching signal Sw3, and the privacy control signal Pcs connected to the multiple fifth switching devices Ts5 is the same, so as to synchronize the operation of the first light-emitting device LE1 in the third display area AA3 and distribute the working pressure on the fifth switching devices Ts5.

[0047] Similarly, a design can be obtained in which the third display area AA3 is adjacent to at least one of the first display area AA1 and the second display area AA2 along the column direction, which will not be elaborated here.

[0048] It should be understood that, with reference Figures 5A-5C The design shown also allows the display panel to include more display area (such as...). Figure 5D The diagram illustrates a display panel design with four display areas. Sw4 represents the fourth switch signal, PclA indicates the privacy control line connected to the fourth display area AA4, TsA represents the switch device, and Pcu4 represents the fourth privacy control unit. This design allows the display panel to achieve privacy display designs with more zones. However, it should be noted that the display panel can also include more than four display areas.

[0049] Optionally, to make the timing of each first selection subunit 201 receiving the corresponding anti-spy control signal Pcs controllable and reduce the probability of erroneous anti-spy display, each anti-spy control unit Pcu may include a second control subunit 302, and each display selection unit 20 may also include a selection control subunit 203, such as... Figure 2B As shown, a selection control subunit 203 is electrically connected between a first selection subunit 201 and a first control subunit 301, and is also electrically connected to a second control subunit 302. The first selection subunit 201 is configured to control the timing of the driving current flowing through the first light-emitting device LE1 according to a corresponding first privacy control signal Pcs1. The selection control subunit 203 is configured to control the signal transmission between the first selection subunit 201 and the corresponding first control subunit 301 according to a corresponding second privacy control signal Pcs2. Specifically, the first control subunit 301 is configured to control the selection control subunits 203 of multiple sub-pixels Spx to receive the corresponding first privacy control signal Pcs1, and the second control subunit 302 is configured to control the selection control subunits 203 of multiple sub-pixels Spx to receive the corresponding second privacy control signal Pcs2.

[0050] In some embodiments, the second control subunit 302 may include at least one switching device.

[0051] As Figure 3B and Figure 5E Taking this as an example, the selection control subunit 203 includes a second transistor T2. The control terminal of the second transistor T2 is electrically connected to the corresponding second control subunit 302. The first source-drain terminal of the second transistor T2 is electrically connected to the corresponding first control subunit 301. The second source-drain terminal of the second transistor T2 is electrically connected to the control terminal of the corresponding first transistor T1.

[0052] The first switch signal Sw1 includes a first sub-switch signal Sw11 and a second sub-switch signal Sw12; the second switch signal Sw2 includes a third sub-switch signal Sw21 and a fourth sub-switch signal Sw22; the first privacy control signal Pcs1 includes a first privacy control signal and a second privacy control signal; the second privacy control signal Pcs2 includes a third privacy control signal and a fourth privacy control signal.

[0053] The first control subunit 301 of the first privacy control unit Pcu1 includes a plurality of first switching devices Ts1. Each first switching device Ts1 is electrically connected between the selection control subunit 203 of the plurality of first sub-pixels Spx1 and the first privacy control line Pcl1 that transmits the first sub-privacy control signal. Each first switching device Ts1 is configured to control the signal transmission between the selection control subunit 203 of the plurality of first sub-pixels Spx1 and the first privacy control line Pcl1 according to the first sub-switching signal Sw11.

[0054] The first control subunit 301 of the second privacy control unit Pcu2 includes a plurality of second switching devices Ts2. Each second switching device Ts2 is electrically connected between the selection control subunit 203 of the plurality of second sub-pixels Spx2 and the second privacy control line Pcl2 that transmits the second sub-privacy control signal. Each second switching device Ts2 is configured to control the signal transmission between the selection control subunit 203 of the plurality of second sub-pixels Spx2 and the second privacy control line Pcl2 according to the third sub-switching signal Sw21.

[0055] The second control subunit 302 of the first privacy control unit Pcu1 includes a plurality of third switching devices Ts3. Each third switching device Ts3 is electrically connected between the selection control subunit 203 of the plurality of first sub-pixels Spx1 and the third privacy control line Pcl3 that transmits the third sub-privacy control signal. Each third switching device Ts3 is configured to control the signal transmission between the selection control subunit 203 of the plurality of first sub-pixels Spx1 and the third privacy control line Pcl3 according to the second sub-switching signal Sw12.

[0056] The second control subunit 302 of the second privacy control unit Pcu2 includes a fourth switching device Ts4. Each fourth switching device Ts4 is electrically connected between the selection control subunit 203 of multiple second sub-pixels Spx2 and the fourth privacy control line Pcl4 that transmits the fourth sub-privacy control signal. Each fourth switching device Ts4 is configured to control the signal transmission between the selection control subunit 203 of multiple second sub-pixels Spx2 and the fourth privacy control line Pcl4 according to the fourth sub-switching signal Sw22.

[0057] exist Figure 5EIn the first display area AA1, when the first light-emitting device LE1 needs to implement a privacy display, the first sub-switch signal Sw11 controls the first switching device Ts1 to connect the signal transmission path between the first privacy control line Pcl1 and the first source-drain terminal of the second transistor T2. The second sub-switch signal Sw12 controls the third switching device Ts3 to connect the signal transmission path between the first switching device Ts1 and the control terminal of the first transistor T1, thereby turning on the first transistor T1 under the action of the first sub-privacy signal, and thus causing the first light-emitting device LE1 to emit light. When the first light-emitting device LE1 in the first display area AA1 does not need to implement a privacy display, at least one of the first switching device Ts1, the third switching device Ts3, and the first transistor T1 can be in the off state. Therefore, when the first light-emitting device LE1 in the first display area AA1 does not need to implement a privacy display, this can be achieved by adjusting the level of at least one of the first sub-switch signal Sw11, the second sub-switch signal Sw12, and the first sub-privacy control signal.

[0058] Similarly, the principle behind the privacy protection display implemented in the second display area AA2 can be derived, which will not be elaborated here.

[0059] It should be noted that, Figures 4A-4C The first privacy control signal Pcs1 and the second privacy control signal Pcs2 shown are timing sequences corresponding to the same sub-pixel. For example, the timing sequence of the first privacy control signal corresponding to the first sub-pixel can be referenced. Figures 4A-4C The timing of the first privacy control signal Pcs1 is shown below. The timing of the third privacy control signal can be referenced. Figures 4A-4C The timing of the second privacy control signal Pcs2 is shown. The timing of the second sub-privacy control signal corresponding to the second sub-pixel can be referenced. Figures 4A-4C The timing of the first privacy control signal Pcs1 shown is illustrated. The timing of the fourth privacy control signal can be referenced. Figures 4A-4C The timing of the second privacy control signal Pcs2 is shown. However, it should be noted that the timing of the first and second sub-privacy control signals may be asynchronous in terms of level changes for at least one frame. Similarly, the timing of the third and fourth sub-privacy control signals may also be asynchronous in terms of level changes for at least one frame.

[0060] In some embodiments, in order to reduce the number of privacy control signals Pcs and switching devices used in the display panel, the first control subunit 301 located in different display areas can be electrically connected to the same privacy control line.

[0061] Please continue reading. Figure 5FTaking Dr1 as the row direction and Dr2 as the column direction as an example, the first display area AA1 includes multiple first pixel rows arranged along the second direction Dr2, and each first pixel row includes multiple first sub-pixels Spx1 arranged along the first direction Dr1. The second display area AA2 includes multiple second pixel rows arranged along the second direction Dr2, and each second pixel row includes multiple second sub-pixels Spx2 arranged along the first direction Dr1; the number of second pixel rows in the second pixel area is equal to the number of first pixel rows in the first pixel area. The first switching device Ts1 is multiplexed as the second switching device Ts2, and the first privacy control line Pcl1 is multiplexed as the second privacy control line Pcl2. Thus, when privacy display is required in one of the first display areas AA1 and AA2, it can be achieved by controlling the corresponding second privacy control signal Pcs2 in the first and second display areas AA1 and AA2, which helps to reduce the number of switching devices and privacy control signals Pcs used in the display panel.

[0062] That is, the first switching device Ts1 is electrically connected to multiple first sub-pixels Spx1 and multiple second sub-pixels Spx2 located in the same pixel row. When the first display area AA1 needs to implement privacy protection, but the second display area AA2 does not, the first switching device Ts1 can connect the signal transmission path between the first privacy control line Pcl1 and the first source-drain terminal of the second transistor T2 of the first sub-pixel Spx1, and also connect the signal transmission path between the first privacy control line Pcl1 and the first source-drain terminal of the second transistor T2 of the second sub-pixel Spx2 through the first switching device Ts1, and control the third switching device Ts3 to connect the third privacy control line Pcl3 and the second transistor T2 of the first sub-pixel Spx1. The signal transmission path between the control terminals of 2 is disconnected by the fourth switching device Ts4 from the control terminal of the fourth privacy control line Pcl4 and the second transistor T2 in the second sub-pixel Spx2. This causes the first transistor T1 of the first sub-pixel Spx1 to conduct under the action of the first privacy control signal, while the second transistor T2 of the second sub-pixel Spx2 is cut off under the action of the fourth switching device Ts4. This enables the first display area AA1 to achieve privacy display, while the second display area AA2 does not achieve privacy display, thus realizing the left and right partition privacy design.

[0063] Similarly, we can also see the design where the first display area AA1 does not need to implement privacy protection, while the second display area AA2 does implement privacy protection, which will not be elaborated here.

[0064] Similarly, the first display area AA1 and the second display area AA2 can be adjacent along the column direction to achieve a design that separates the upper and lower sections for privacy protection, which will not be elaborated on here.

[0065] After setting the selection control subunit 203 and the second control subunit 302, it is still possible to achieve both left and right partitioned privacy design and upper and lower partitioned privacy design.

[0066] Please continue reading. Figure 5E and Figure 5F The display panel may still include a third display area AA3, which is still adjacent to at least one of the first display area AA1 and the second display area AA2 along the second direction Dr2. The third switch signal Sw3 includes a fifth sub-switch signal Sw31 and a sixth sub-switch signal Sw32; the first privacy control signal Pcs1 also includes a fifth privacy control signal, and the second privacy control signal Pcs2 also includes a sixth privacy control signal.

[0067] The first control subunit 301 of the third privacy control unit Pcu3 includes a plurality of fifth switching devices Ts5; each fifth switching device Ts5 is electrically connected between the selection control subunit 203 of the plurality of third sub-pixels Spx and the fifth privacy control line Pcl5 that transmits the fifth sub-privacy control signal, and each fifth switching device Ts5 is configured to control the signal transmission between the selection control subunit 203 of the plurality of third sub-pixels Spx and the fifth privacy control line Pcl5 according to the fifth sub-switching signal Sw31.

[0068] The second control subunit 302 of the third privacy control unit Pcu3 includes a plurality of sixth switching devices Ts6; each sixth switching device Ts6 is electrically connected between the selection control subunit 203 of the plurality of third sub-pixels Spx and the sixth privacy control line Pcl6 that transmits the sixth sub-privacy control signal, and each sixth switching device Ts6 is configured to control the signal transmission between the selection control subunit 203 of the plurality of third sub-pixels Spx and the sixth privacy control line Pcl6 according to the sixth sub-switching signal Sw32.

[0069] When the first light-emitting device LE1 located in the third display area AA3 needs to achieve privacy protection, the fifth sub-switch signal Sw31 can control the fifth switch device Ts5 to connect the signal transmission path between the fifth privacy protection control line Pcl5 and the first source-drain terminal of the second transistor T2 in the third display area AA3. The sixth sub-switch signal Sw32 and the sixth sub-privacy protection signal control the sixth switch device Ts6 to connect the signal transmission path between the fifth switch device Ts5 and the control terminal of the first transistor T1 in the third display area AA3, so that the first transistor T1 located in the third display area AA3 is turned on under the action of the fifth sub-privacy protection signal, thereby causing the first light-emitting device LE1 located in the third display area AA3 to emit light.

[0070] In some embodiments, in order to reduce the number of privacy control signals Pcs used by the display panel and reduce the number of sub-switch signals, the first privacy control line Pcl1 can be multiplexed as the fifth privacy control line Pcl5, and the first sub-switch signal Sw11 can be multiplexed as the fifth sub-switch signal Sw31.

[0071] Please continue reading. Figure 5F The first switching device Ts1 is controlled by the first sub-switching signal Sw11. When the first display area AA1 does not need to implement privacy protection, but the third display area AA3 needs to implement privacy protection, the first switching device Ts1 can connect the signal transmission path between the first privacy control line Pcl1 and the first source-drain terminal of the second transistor T2 of the first sub-pixel Spx1, and also connect the signal transmission path between the first privacy control line Pcl1 and the first source-drain terminal of the second transistor T2 of the third sub-pixel Spx through the first switching device Ts1, and control the third switching device Ts3 to disconnect the third privacy control line Pcl3 from the second transistor in the first sub-pixel Spx1. The signal transmission path between the control terminals of T2 is connected through the sixth switching device Ts6 to the signal transmission path between the sixth privacy control line Pcl6 and the control terminal of the second transistor T2 in the third sub-pixel Spx. This causes the first transistor T1 of the third sub-pixel Spx to be turned on under the action of the first privacy control signal, while the second transistor T2 of the first sub-pixel Spx1 is turned off under the action of the third switching device Ts3. This causes the first display area AA1 to not achieve privacy display, while the third display area AA3 achieves privacy display, thereby realizing the upper and lower partition privacy design.

[0072] It should be understood that, with reference Figures 5E-5F The design shown also allows the display panel to include more display areas, enabling the display panel to implement more partitioned privacy display designs. Figure 5E and Figure 5F Sw41 and Sw42 are the switch signals corresponding to the fourth display area AA4, PclA and PclB represent the privacy control lines connected to the fourth display area AA4, and TsA and TsB represent the switching devices. Similarly, the number of display areas included in the display panel can be greater than or equal to four.

[0073] In some embodiments, to enable the display panel to still achieve normal display when privacy protection is not required, each sub-pixel Spx may also include a second light-emitting device LE2, such as... Figures 2A-2B As shown, the second light-emitting device LE2 is used to achieve a non-peeping display. The aforementioned light-emitting device includes the second light-emitting device LE2.

[0074] It should be noted that the first light-emitting device LE1 and the second light-emitting device LE2 differ in at least one aspect, such as the light-emitting aperture area and the light-emitting material, so that when the second light-emitting device LE2 is used for display, the audience can see the content displayed on the display panel from a wider viewing angle. Conversely, when the first light-emitting device LE1 is used for display, the audience can see the content displayed on the display panel from a narrower viewing angle. For example, in some embodiments, the light-emitting aperture area of ​​the first light-emitting device LE1 is smaller than that of the second light-emitting device LE2. Furthermore, by placing a light-shielding component near the first light-emitting device LE1, the divergence angle of the light emitted by the first light-emitting device LE1 can be limited, thereby allowing the audience to see the content displayed on the display panel from a narrower viewing angle when the first light-emitting device LE1 is used for display.

[0075] In some embodiments, the light-emitting periods of the first light-emitting device LE1 and the second light-emitting device LE2 do not overlap, so as to reduce the working time of the first light-emitting device LE1 and the second light-emitting device LE2, so that the first light-emitting device LE1 and the second light-emitting device LE2 have a longer service life respectively.

[0076] In some embodiments, the first light-emitting device LE1 and the second light-emitting device LE2 can share the same pixel driving circuit 10 for driving, thereby reducing the number of pixel driving circuits 10 included in the display panel, which is beneficial for achieving a high-resolution design of the display panel and can also reduce power consumption.

[0077] It should be understood that the first light-emitting device LE1 and the second light-emitting device LE2 can also be driven by different pixel driving circuits 10. The pixel driving circuit 10 driving the first light-emitting device LE1 and the pixel driving circuit 10 driving the second light-emitting device LE2 can adopt the same or different circuit implementation forms.

[0078] Optionally, when the first light-emitting device LE1 and the second light-emitting device LE2 share the same pixel driving circuit 10, to achieve independent control of the light emission of the first light-emitting device LE1 and the second light-emitting device LE2, each display selection unit 20 can include a second selection subunit 202. The second selection subunit 202 is electrically connected between the corresponding pixel driving circuit 10 and the second light-emitting device LE2. The second selection subunit 202 is configured to control the timing of the driving current flowing through the second light-emitting device LE2 according to the corresponding first control signal Dcs1. Therefore, corresponding to the above-mentioned light emission period, when the first control signal Dcs1 corresponding to the sub-pixel Spx controls the second selection subunit 202 to connect the signal transmission path between the driving circuit and the second light-emitting device LE2, the second light-emitting device LE2 emits light to achieve a non-peeping display on the display panel.

[0079] Optionally, the second selection subunits 202 can be implemented using devices that have switching functions. For example, in some embodiments, each second selection subunit 202 may include a third transistor T3, such as... Figures 3A-3B As shown. The control terminal of the third transistor T3 is configured to receive the corresponding first control signal Dcs1. The first source-drain terminal of the third transistor T3 is electrically connected to the first source-drain terminal of the first transistor T1. The second source-drain terminal of the third transistor T3 is electrically connected to the anode of the second light-emitting device LE2. The cathode of the second light-emitting device LE2 is electrically connected to the third power supply terminal. The voltage of the first power supply signal is greater than the voltage of the third power supply signal supplied by the third power supply terminal.

[0080] In some embodiments, the voltage of the second power supply signal and the voltage of the third power supply signal are different, so that the first light-emitting device LE1 and the second light-emitting device LE2 have different luminous brightness when they are working respectively.

[0081] In some embodiments, the second power supply terminal Vss is multiplexed as the third power supply terminal to reduce the number of power supply terminals used by the display panel and reduce the power consumption of the display panel.

[0082] Optionally, to make the timing of each second selection subunit 202 receiving the corresponding first control signal Dcs1 controllable and reduce the probability of the second light-emitting device LE2 emitting light falsely, the privacy control unit Pcu corresponding to each display area can include a third control subunit 401, such as... Figures 2A-2B As shown.

[0083] Please continue reading. Figures 5A-5F The first control signal Dcs1 includes a first sub-control signal and a second sub-control signal. Each privacy control unit Pcu includes a third control subunit 401. The third control subunit 401 of the first privacy control unit Pcu1 includes multiple seventh switching devices Td1. Each seventh switching device Td1 is electrically connected between a second selection subunit 202 of multiple first sub-pixels Spx1 and a first control line Dcl1 that transmits the first sub-control signal. Each seventh switching device Td1 is configured to control the signal transmission between the second selection subunit 202 of multiple first sub-pixels Spx1 and the first control line Dcl1 according to the second control signal Dcs2. The third control subunit 401 of the second privacy control unit Pcu2 includes a plurality of eighth switching devices Td2. Each eighth switching device Td2 is electrically connected between the second selection subunit 202 of the plurality of second sub-pixels Spx2 and the second control line Dcl2 that transmits the second sub-control signal. Each eighth switching device Td2 is configured to control the signal transmission between the second selection subunit 202 of the plurality of second sub-pixels Spx2 and the second control line Dcl2 according to the third control signal Dcs3.

[0084] When the second light-emitting device LE2 in the first display area AA1 needs to be displayed, the seventh switching device Td1, under the control of the first sub-control signal, connects the signal transmission path between the second light-emitting device LE2 and the pixel driving circuit 10 during the light-emitting period t4, so that the driving current flows through the second light-emitting device LE2, thereby causing the second light-emitting device LE2 located in the first display area AA1 to emit light. When the second light-emitting device LE2 in the second display area AA2 needs to be displayed, the eighth switching device Td2, under the control of the second sub-control signal, connects the signal transmission path between the second light-emitting device LE2 and the pixel driving circuit 10 during the light-emitting stage, so that the driving current flows through the second light-emitting device LE2, thereby causing the second light-emitting device LE2 located in the second display area AA2 to emit light.

[0085] It should be understood that the first sub-control signal and the second sub-control signal are independent of each other. That is, the timing changes of the first sub-control signal and the timing changes of the second sub-control signal will not affect each other.

[0086] It should be noted that, Figures 5C-5F In this context, Dcs4 represents the fourth control signal corresponding to the third display area, Dcl3 represents the third sub-control signal in the first control signal corresponding to the third display area, and Td3 is the switching device corresponding to the third display area. Figures 5D to 5F In this context, DcsA represents the fifth control signal corresponding to the fourth display area, DclA represents the fourth sub-control signal in the first control signal corresponding to the fourth display area, and TdA is the switching device corresponding to the fourth display area. Figures 5A-5F The illustrations only show the design of each third control subunit 401 including multiple switching devices. However, in some embodiments, at least one fourth sub-control unit may include a switching device. Furthermore, referring to the design of the third control subunit 401 corresponding to the first display area AA1 and the second display area AA2, the relevant designs of the third control subunit 401 corresponding to other display areas can be obtained, which will not be described in detail here.

[0087] Optionally, within the same sub-pixel Spx, the corresponding pixel driving circuit 10 generates a driving current to drive the first light-emitting device LE1 or the second light-emitting device LE2 to emit light during the light-emitting period. The privacy control signal Pcs is out of phase with the first control signal Dcs1 so that when the first light-emitting device LE1 and the second light-emitting device LE2 share the same pixel driving circuit 10, the light-emitting periods of the first light-emitting device LE1 and the second light-emitting device LE2 do not overlap. Thus, while privacy display is achieved in part of the display area, non-privacy display can be achieved in another part of the display area.

[0088] As Figures 4A-4C and Figures 5A-5FTaking the first sub-pixel Spx1 as an example, during the light-emitting period t4, when the first transistor T1 is turned off according to the corresponding privacy control signal Pcs, the seventh switching device Td1, under the control of the second control signal Dcs2, connects the signal transmission between the third transistor T3 and the first control line Dcl1 that transmits the first sub-control signal, so that the third transistor T3 is turned on under the control of the first sub-control signal, thereby causing the second light-emitting device LE2 to emit light (i.e., the corresponding...). Figures 4B-4C (The time period corresponding to the tB stage shown). Similarly, the light-emitting control principle of the second light-emitting device LE2 in other display areas can also be obtained, which will not be elaborated here.

[0089] In some embodiments, for the same sub-pixel Spx, to reduce the false emission of the first light-emitting device LE1 and the second light-emitting device LE2 during the first time period t1 to the third time period t3 corresponding to the sub-pixel Spx, the first transistor T1 to the third transistor T3 of the sub-pixel Spx can all be in the off state. Accordingly, the privacy control signal Pcs corresponding to the sub-pixel Spx is at a level that turns off the first transistor T1 during the first time period t1 to the third time period t3 corresponding to the sub-pixel Spx, the switch signal corresponding to the sub-pixel Spx is at a level that turns off the second transistor T2 during the first time period t1 to the third time period t3 corresponding to the sub-pixel Spx, and the first control signal Dcs1 corresponding to the sub-pixel Spx is at a level that turns off the third transistor T3 during the first time period t1 to the third time period t3 corresponding to the sub-pixel Spx.

[0090] Optionally, to reduce the impact of the privacy control unit Pcu on the display panel resolution, multiple privacy control units Pcu can be set in the non-display area NA of the display panel. The non-display area NA can be an area surrounding part or all of the display area.

[0091] In some embodiments, the display panel includes a non-display area NA located around the first display area AA1 and the second display area AA2. The first control subunit 301 and the second control subunit 302 are located in the non-display area NA.

[0092] In some embodiments, the non-display area NA includes multiple non-display sub-areas, and the first control sub-unit 301 and the second control sub-unit 302 are located in different non-display sub-areas to reduce the bezel size of a single non-display sub-area.

[0093] In some embodiments, the third control subunit 401 is also located in the non-display area NA. The first control subunit 301 and the third control subunit 401 may be located in two oppositely arranged non-display sub-areas to reduce the bezel size of a single non-display sub-area.

[0094] It should be noted that the aforementioned transistors or switching devices can be implemented as bipolar junction transistors (BJTs), field-effect transistors (FETs), or thin-film transistors (TFTs), respectively. When the transistor is implemented as a FET or TFT, the control terminal can be the gate, the first source / drain terminal can be one of the source and drain, and the second source / drain terminal can be the other of the source and drain. When the transistor is implemented as a BJT, the control terminal can be the base, the first source / drain terminal can be one of the collector and emitter, and the second source / drain terminal can be the other of the collector and emitter. Each transistor can employ a single-gate or dual-gate design. The active layer of each transistor can include silicon semiconductor materials or oxide semiconductor materials. The silicon semiconductor materials include monocrystalline silicon, polycrystalline silicon, or amorphous silicon, etc. The oxide semiconductor materials include indium gallium zinc oxide or indium zinc oxide, etc.

[0095] It should be understood that, Figures 3A-3B The pixel driving circuit shown Figures 4A-4C The timing shown and Figures 5A-5F The connection settings described herein are merely illustrative of some embodiments and are not intended to limit this application to using only the designs described above. Those skilled in the art can modify the types and quantities of components included in the circuit, the connection relationships between components, the implementation of components, the number and size of display zones, etc., according to actual needs. Changes in the level of the privacy control signal Pcs are also permitted and included in this application.

[0096] Figure 6 This is a schematic diagram of the structure of a display device according to an exemplary embodiment of the present disclosure. This application also provides a display device including any of the above-described display panels.

[0097] In some embodiments, the display device further includes a display driver module Dcm, which is electrically connected to the display panel and configured to provide a corresponding privacy control signal Pcs to the display panel.

[0098] Optionally, the display driver module Dcm may include a timing controller, which provides a corresponding privacy control signal Pcs to the display panel.

[0099] It should be noted that the display driver module Dcm may also include a gate driver circuit and a source driver. The timing controller is electrically connected to the gate driver circuit and the source driver. The timing controller can provide the required clock signal to the gate driver circuit so that the gate driver circuit generates a scan signal to output to multiple sub-pixels Spx. The source driver can generate a data signal Vda according to the control signal output by the timing controller, and output it to multiple sub-pixels Spx, thereby controlling the display content of multiple sub-pixels Spx.

[0100] It should be understood that the display device may also include components not shown, such as a power management chip and a graphics processor. The power management chip provides power to the display panel, and the graphics processor transmits image data information to the timing controller to control the display panel.

[0101] The display device described in this application can be a mobile phone, computer, virtual reality display, augmented reality display, or other similar devices. The display device can be used in fields such as education, entertainment, transportation, medical care, and national defense to achieve display functions.

[0102] It should be understood that since the display device provided by the present invention includes any of the above-mentioned display panels, the display device of the present invention also has all the beneficial effects of the above-mentioned display panels, which will not be repeated here.

[0103] The above description is merely an optional embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the inventive concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A display panel, characterized in that, The display panel has at least a first display area and a second display area, the display panel comprising: Multiple sub-pixels, including multiple first sub-pixels located in the first display area and multiple second sub-pixels located in the second display area; each sub-pixel includes at least a first light-emitting device, a pixel driving circuit, and a display selection unit, wherein the first light-emitting device is used to implement a privacy display, the pixel driving circuit is configured to generate a driving current to drive the first light-emitting device to emit light, and the display selection unit is electrically connected between the pixel driving circuit and the first light-emitting device, and the display selection unit is configured to control the timing of the driving current flowing through the first light-emitting device according to a corresponding privacy control signal; The privacy control module includes multiple privacy control units. Each privacy control unit includes a first privacy control unit electrically connected to the display selection units of multiple first sub-pixels, and a second privacy control unit electrically connected to the display selection units of multiple second sub-pixels. The first privacy control unit is configured to control the display selection units of the multiple first sub-pixels to receive a corresponding privacy control signal according to a first switch signal. The second privacy control unit is configured to control the display selection units of the multiple second sub-pixels to receive the corresponding privacy control signal according to a second switch signal.

2. The display panel according to claim 1, characterized in that, Each of the aforementioned privacy control units includes a first control subunit; Each of the display selection units includes a first selection subunit, which is electrically connected between the corresponding pixel driving circuit and the first light-emitting device, and is electrically connected to the corresponding first control subunit. The first selection subunit is configured to control the timing of the driving current flowing through the first light-emitting device according to the corresponding privacy control signal. Wherein, the first control subunit of the first anti-spy control unit is configured to control the first selection subunit among the plurality of first sub-pixels to receive the corresponding anti-spy control signal according to the first switch signal, and the first control subunit of the second anti-spy control unit is configured to control the first selection subunit among the plurality of second sub-pixels to receive the corresponding anti-spy control signal according to the second switch signal.

3. The display panel according to claim 2, characterized in that, Each of the aforementioned privacy control units includes a second control subunit; Each of the display selection units further includes a selection control subunit, which is electrically connected between the first selection subunit and the first control subunit, and is also electrically connected to the second control subunit. The first selection subunit is configured to control the timing of the driving current flowing through the first light-emitting device according to a corresponding first privacy control signal, and the selection control subunit is configured to control the signal transmission between the first selection subunit and the corresponding first control subunit according to a corresponding second privacy control signal. The first control subunit is configured to control the selection control subunits of the plurality of sub-pixels to receive the corresponding first anti-spy control signal, and the second control subunit is configured to control the selection control subunits of the plurality of sub-pixels to receive the corresponding second anti-spy control signal.

4. The display panel according to claim 3, characterized in that, The first switch signal includes a first sub-switch signal and a second sub-switch signal, and the second switch signal includes a third sub-switch signal and a fourth sub-switch signal; the first privacy control signal includes a first sub-privacy control signal and a second privacy control signal, and the second privacy control signal includes a third sub-privacy control signal and a fourth privacy control signal. The first control subunit of the first privacy control unit includes a plurality of first switching devices. Each first switching device is electrically connected between the selection control subunit of the plurality of first sub-pixels and the first privacy control line that transmits the first sub-privacy control signal. Each first switching device is configured to control the signal transmission between the selection control subunit of the plurality of first sub-pixels and the first privacy control line according to the first sub-switching signal. The first control subunit of the second privacy control unit includes a plurality of second switching devices. Each second switching device is electrically connected between the selection control subunit of the plurality of second sub-pixels and the second privacy control line that transmits the second sub-privacy control signal. Each second switching device is configured to control the signal transmission between the selection control subunit of the plurality of second sub-pixels and the second privacy control line according to the third sub-switching signal. The second control subunit of the first privacy control unit includes a plurality of third switching devices. Each third switching device is electrically connected between the selection control subunit of the plurality of first sub-pixels and the third privacy control line that transmits the third sub-privacy control signal. Each third switching device is configured to control the signal transmission between the selection control subunit of the plurality of first sub-pixels and the third privacy control line according to the second sub-switching signal. The second control subunit of the second privacy control unit includes a fourth switching device. Each of the fourth switching devices is electrically connected between the selection control subunits of the plurality of second sub-pixels and the fourth privacy control line that transmits the fourth privacy control signal. Each of the fourth switching devices is configured to control the signal transmission between the selection control subunits of the plurality of second sub-pixels and the fourth privacy control line according to the fourth switching signal.

5. The display panel according to claim 4, characterized in that, The first display area and the second display area are adjacent to each other along the first direction; The first display area includes a plurality of first pixel rows arranged along a second direction, and each first pixel row includes a plurality of first sub-pixels arranged along the first direction; the second direction intersects with the first direction; The second display area includes a plurality of second pixel rows arranged along the second direction, and each second pixel row includes a plurality of second sub-pixels arranged along the first direction; the number of second pixel rows included in the second pixel area is equal to the number of first pixel rows included in the first pixel area; Wherein, the first direction is the row direction, the first switching device is multiplexed as the second switching device, and the first privacy control line is multiplexed as the second privacy control line.

6. The display panel according to claim 4, characterized in that, The first display area and the second display area are adjacent to each other along a first direction; the display panel also has a third display area, which is adjacent to at least one of the first display area and the second display area along a second direction, and the second direction intersects the first direction; The plurality of sub-pixels includes a plurality of third sub-pixels located in the first display area; The plurality of privacy control units further include a third privacy control unit, which is electrically connected to the display selection unit of the plurality of third sub-pixels. The third privacy control unit is configured to control the display selection unit of the plurality of third sub-pixels to receive the corresponding privacy control signal according to a third switch signal.

7. The display panel according to claim 6, characterized in that, The third switch signal includes a fifth sub-switch signal and a sixth sub-switch signal; the first anti-peeping control signal also includes a fifth sub-anti-peeping control signal, and the second anti-peeping control signal also includes a sixth sub-anti-peeping control signal; The first control subunit of the third privacy control unit includes a plurality of fifth switching devices; each of the fifth switching devices is electrically connected between the selection control subunits of the plurality of third sub-pixels and the fifth privacy control line that transmits the fifth sub-privacy control signal, and each of the fifth switching devices is configured to control the signal transmission between the selection control subunits of the plurality of third sub-pixels and the fifth privacy control line according to the fifth sub-switching signal; The second control subunit of the third privacy control unit includes a plurality of sixth switching devices; each of the sixth switching devices is electrically connected between the selection control subunits of the plurality of third sub-pixels and the sixth privacy control line that transmits the sixth sub-privacy control signal, and each of the sixth switching devices is configured to control the signal transmission between the selection control subunits of the plurality of third sub-pixels and the sixth privacy control line according to the sixth sub-switching signal.

8. The display panel according to claim 7, characterized in that, The first direction is the row direction, the first privacy control line is multiplexed as the fifth privacy control line, and the first sub-switch signal is multiplexed as the fifth sub-switch signal.

9. The display panel according to claim 3, characterized in that, The display panel also includes a non-display area located around the first display area and the second display area; The first control subunit and the second control subunit are located in the non-display area.

10. The display panel according to any one of claims 1 to 9, characterized in that, Each of the sub-pixels further includes a second light-emitting device; the first light-emitting device is used to realize a non-peeping display; The display selection unit for each sub-pixel includes a second selection sub-unit, which is electrically connected between the corresponding pixel driving circuit and the second light-emitting device. The second selection sub-unit is configured to control the timing of the driving current flowing through the second light-emitting device according to a corresponding first control signal.

11. The display panel according to claim 10, characterized in that, The first control signal includes a first sub-control signal and a second sub-control signal; each of the privacy control units includes a third control sub-unit; The third control subunit of the first privacy control unit includes a plurality of seventh switching devices. Each seventh switching device is electrically connected between the second selection subunit of the plurality of first sub-pixels and the first control line that transmits the first sub-control signal. Each seventh switching device is configured to control the signal transmission between the second selection subunit of the plurality of first sub-pixels and the first control line according to the second control signal. The third control subunit of the second privacy control unit includes a plurality of eighth switching devices, each of the eighth switching devices being electrically connected between the second selection subunit of the plurality of second sub-pixels and the second control line for transmitting the second sub-control signal, and each of the eighth switching devices being configured to control the signal transmission between the second selection subunit of the plurality of second sub-pixels and the second control line according to the third control signal.

12. The display panel according to claim 10, characterized in that, Within the same sub-pixel, during the light-emitting period when the pixel driving circuit generates the driving current to drive the first light-emitting device or the second light-emitting device to emit light, the privacy control signal is out of phase with the first control signal.

13. A display device, characterized in that, include: The display panel as described in any one of claims 1 to 12; as well as The display driver module, electrically connected to the display panel, is configured to provide the corresponding privacy control signal to the display panel.

Images