CN111063293B - Display panel, driving method thereof and display device - Google Patents
Display panel, driving method thereof and display device Download PDFInfo
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- CN111063293B CN111063293B CN202010000214.4A CN202010000214A CN111063293B CN 111063293 B CN111063293 B CN 111063293B CN 202010000214 A CN202010000214 A CN 202010000214A CN 111063293 B CN111063293 B CN 111063293B
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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Abstract
The application provides a display panel, a driving method thereof and a display device, which relate to the technical field of display and comprise a switch module, a first signal line, a data line, a control signal line and a second signal line; the pixel array further comprises a plurality of sub-pixel columns, wherein each sub-pixel column comprises a plurality of first sub-pixels and second sub-pixels; the display panel comprises a first display state and a second display state, and the switch module is used for switching the first display state and the second display state; the display pixel density of the display panel in the first display state is greater than that of the display panel in the second display state; in a first display state, the first sub-pixel and the second sub-pixel are both in a lighting state; in the second display state, the first sub-pixel is in a lit state and the second sub-pixel is in a dark state. According to the display panel, the first sub-pixel and the second sub-pixel are in different display states, so that different functions of the display panel can be achieved, different application requirements of users can be met, and power consumption is saved.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a display panel, a driving method thereof, and a display device.
Background
With the development of flexible display panel technology, foldable display panels are gradually being applied. When some foldable display panels are used, when the foldable display panels are in a folded state, one part of the display panel is a display area, and the other part of the display panel is a non-display area.
However, when the prior art folding display panel displays in a half-screen mode, the RC load on the data line is still the load of the entire display panel, as shown in fig. 1, which is a top view of the prior art display panel, please refer to fig. 1, the display panel includes a plurality of sub-pixels 110, the sub-pixels 110 in the same column transmit data signals through the same data signal line 120, when the display panel 100 is folded, only a part of the sub-pixels 110 need to display images, but since each data signal line 120 is electrically connected to a whole column of sub-pixels 110, the RC load on the data signal line 120 is still the total load of all the sub-pixels 110, which results in a large driving power consumption of the display panel 100 and is not beneficial to saving power consumption. Moreover, in the prior art, each data signal line 120 is electrically connected to an entire column of sub-pixels 110, so the display states of the sub-pixels 110 are the same, and the display panel has a single function and is not suitable for various occasions.
Disclosure of Invention
In view of this, the present application provides a display panel, a driving method thereof and a display device, in which a first sub-pixel and a second sub-pixel are in different display states, so that the display panel can realize different functions, thereby meeting different application requirements of a user and being beneficial to saving power consumption.
In order to solve the technical problem, the following technical scheme is adopted:
in a first aspect, the present application provides a display panel comprising: the circuit comprises a plurality of switch modules, a plurality of first signal lines, a plurality of data lines, a plurality of control signal lines and a second signal line;
the display panel comprises a display area and a non-display area surrounding the display area, and the switch module is positioned in the non-display area;
the display area comprises a plurality of sub-pixel columns, and the sub-pixel columns are arranged along a second direction; the sub-pixel column comprises a plurality of sub-pixels, the sub-pixels are arranged along a first direction, and each sub-pixel comprises a first sub-pixel and a second sub-pixel; the first direction and the second direction intersect;
the data lines comprise a first data line and a second data line, the first sub-pixel is electrically connected with the first data line, and the second sub-pixel is electrically connected with the second data line;
the switch module comprises a first input end, a second input end and a plurality of control ends, the first input end is electrically connected with the first signal line, the second input end is electrically connected with the second signal line, and the plurality of control ends of the switch module are connected with the plurality of control signal lines; the switch module further comprises a first output end and a second output end, the first output end is electrically connected with the first data line, and the second output end is electrically connected with the second data line;
the display panel comprises a first display state and a second display state, and the switch module is used for switching the first display state and the second display state;
the display pixel density of the display panel in the first display state is greater than the display pixel density of the display panel in the second display state;
in the first display state, the first sub-pixel and the second sub-pixel are both in a lit state; in the second display state, the first sub-pixel is in a light state and the second sub-pixel is in a dark state.
In a second aspect, the present application provides a driving method of a display panel, for driving the display panel provided by the present application, including:
providing a turn-on voltage or a turn-off voltage through the control signal line;
in the first display state, the switch module transmits the data signal provided by the first signal line to at least part of the sub-pixels or the switch module does not provide the data signal to the sub-pixels, and the first sub-pixels and the second sub-pixels are both in a lighting state;
in the second display state, the switch module transmits the fixed voltage signal provided by the second signal line to the second sub-pixel, and the switch module transmits the data signal provided by the first signal line to the first sub-pixel, wherein the first sub-pixel is in a lighting state, and the second sub-pixel is in a dark state.
In a third aspect, the present application further provides a display device, including a display panel, where the display panel is the display panel provided in the present application.
Compared with the prior art, the display panel, the driving method thereof and the display device provided by the invention at least realize the following beneficial effects:
the display panel can be in a first display state and a second display state by controlling the display states of the first sub-pixel and the second sub-pixel, and when the display panel is in the first display state, the first sub-pixel and the second sub-pixel are both lighted; when the display panel is in the second display state, only the first sub-pixel is lighted, and the second sub-pixel is in the dark state, that is, the display pixel density of the display panel in the first display state is greater than that in the second display state, so that the display panel can be used for different application occasions. The control display panel is in different display states, so that different use requirements of users can be met, and convenience is brought to the users. In addition, the first sub-pixel and the second sub-pixel are respectively connected to different data lines, so that the load on the first data line is only the first sub-pixel, and therefore when only the first sub-pixel is lightened, the load on the first data line can be reduced, and power consumption is saved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a top view of a prior art display panel;
fig. 2 is a top view of a display panel according to an embodiment of the present disclosure;
fig. 3 is a top view of another display panel provided in the embodiment of the present application;
FIG. 4 is a schematic diagram showing the connection relationship between each transistor and each sub-pixel in the switch module;
FIG. 5 is an enlarged view of a portion of the switch module;
fig. 6 is a schematic view illustrating an arrangement structure of a first sub-pixel and a second sub-pixel provided in an embodiment of the present application;
fig. 7 is a schematic view illustrating another arrangement structure of the first sub-pixel and the second sub-pixel according to the embodiment of the present disclosure;
fig. 8 is a schematic view illustrating an arrangement structure of sub-pixels in a display area according to an embodiment of the present disclosure;
fig. 9 is a schematic view illustrating another arrangement structure of sub-pixels in a display area according to an embodiment of the present disclosure;
fig. 10 is a schematic view illustrating another arrangement structure of sub-pixels in a display area according to an embodiment of the present application;
fig. 11 is a schematic view illustrating another arrangement structure of sub-pixels in a display area according to an embodiment of the present disclosure;
fig. 12 is a flowchart illustrating a driving method of a display panel according to an embodiment of the present disclosure;
fig. 13 is a schematic structural diagram of a display device according to an embodiment of the present disclosure.
Detailed Description
As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, within which a person skilled in the art can solve the technical problem to substantially achieve the technical result. The description which follows is a preferred embodiment of the present application, but is made for the purpose of illustrating the general principles of the application and not for the purpose of limiting the scope of the application. The protection scope of the present application shall be subject to the definitions of the appended claims. The same parts between the embodiments are not described in detail.
The following detailed description is to be read in connection with the drawings and the detailed description.
Fig. 2 is a top view of a display panel according to an embodiment of the present application, fig. 3 is another top view of the display panel according to the embodiment of the present application, please refer to fig. 2 and fig. 3, the present application provides a display panel, including: a plurality of switching modules 210, a plurality of first signal lines 220, a plurality of data lines 250, a plurality of control signal lines 240, and second signal lines 230; the display panel 200 includes a display area 201 and a non-display area 202 surrounding the display area 201, and the switch module 210 is located in the non-display area 202; the display region 201 includes a plurality of sub-pixel columns 260, the sub-pixel columns 260 being arranged in a second direction; the sub-pixel column 260 includes a plurality of sub-pixels 261, the sub-pixels 261 are arranged along a first direction, and the sub-pixels 261 include a first sub-pixel 262 and a second sub-pixel 263; the first direction and the second direction are crossed; the data line 250 includes a first data line 251 and a second data line 252, the first subpixel 262 is electrically connected to the first data line 251, and the second subpixel 263 is electrically connected to the second data line 252; the switch module 210 comprises a first input terminal 211, a second input terminal 212 and a plurality of control terminals 213, wherein the first input terminal 211 is electrically connected to the first signal line 220, the second input terminal 212 is electrically connected to the second signal line 230, and the plurality of control terminals 213 of the switch module 210 are connected to the plurality of control signal lines 240; the switch module 210 further includes a first output terminal 214 and a second output terminal 215, the first output terminal 214 is electrically connected to the first data line 251, and the second output terminal 215 is electrically connected to the second data line 252.
The display panel 200 includes a first display state and a second display state, and the switch module 210 is configured to switch the first display state and the second display state; the display pixel density of the display panel 200 in the first display state is greater than the display pixel density of the display panel 200 in the second display state; in the first display state, the first subpixel 262 and the second subpixel 263 are both in an illuminated state; in the second display state, the first sub-pixel 262 is in a light state and the second sub-pixel 263 is in a dark state.
Specifically, referring to fig. 2 and 3, the display panel 200 provided in the present application includes a plurality of switch modules 210, a plurality of first signal lines 220, a plurality of data lines 250, a plurality of control signal lines 240, and a second signal line 230, the display panel 200 is divided into a display area 201 and a non-display area 202, the non-display area 202 surrounds the display area 201, the display area 201 is provided with a plurality of sub-pixel columns 260 arranged along a second direction, each sub-pixel column 260 includes a plurality of sub-pixels 261 arranged along the first direction, the first direction and the second direction intersect, the sub-pixels 261 include first sub-pixels 262 and second sub-pixels 263, and the data lines 250 are electrically connected to the sub-pixels 261 to provide data signals for the sub-pixels 261. The data line 250 electrically connected to the first subpixel 262 is a first data line 251 for providing a data signal to the first subpixel 262 through the first data line 251, and the data line 250 electrically connected to the second subpixel 263 is a second data line 252 for providing a data signal to the second subpixel 263 through the second data line 252.
With reference to fig. 2 and fig. 3, the switch module 210 is located in the non-display area 202, the control terminals 213 of the switch module 210 are electrically connected to different control signal lines 240, the on/off of the switch module 210 is controlled by the control signal lines 240, the first input terminal 211 is electrically connected to the first signal line 220, the second input terminal 212 is electrically connected to the second signal line 230, the first output terminal 214 is electrically connected to the first data line 251, the first output terminal 251 transmits a signal to the first sub-pixel 262, the second output terminal 215 is electrically connected to the second data line 252, and the second data line 252 transmits a signal to the second sub-pixel 263. Since the first and second sub-pixels 262 and 263 in the same column are respectively connected to different data lines 250, the first and second sub-pixels 262 and 263 in the same column may be in different display states. For example, when data signals are transmitted on the first data line 251 and the second data line 252, both the first subpixel 262 and the second subpixel 263 can display a picture; when only the first data line 251 has data signal transmission, only the first sub-pixel 262 can perform image display, and at this time, the second sub-pixel 263 does not receive the data signal, and is in a state of not displaying an image, where the non-displayed image can be in a pure black state or a power-off state; or, when only the second data line 252 has data signals for transmission, only the second sub-pixel 263 can display a picture, and the first sub-pixel 262 is in a state of not displaying a picture, and similarly, the state of not displaying a picture can be a pure black state or a power-off state, so that the display panel 200 can realize different display functions, thereby meeting different application requirements of users and providing convenience for the users.
With continued reference to fig. 2 and fig. 3, the display state of the display panel 200 is divided into a first display state and a second display state according to the display states of the first sub-pixel 262 and the second sub-pixel 263, when the display panel 200 is in the first display state, both the first sub-pixel 262 and the second sub-pixel 263 are lit, and when the display panel 200 is in the second display state, only the first sub-pixel 262 is lit, and the second sub-pixel 263 is in a dark state, that is, the display pixel density of the display panel 200 in the first display state is greater than the display pixel density in the second display state, where the display pixel density refers to the number of the sub-pixels 261 in the lit state. According to the application, the switch module 210 is used for controlling the display panel 200 to be in the first display state or the second display state, so that different application requirements of a user can be met by controlling the display panel to be in different display states in different application occasions. In addition, by respectively connecting the first subpixel 262 and the second subpixel 263 to different data lines 250, so that only the first subpixel 262 is loaded on the first data line 251, it is advantageous to reduce the load on the first data line 251, thereby being advantageous to save power consumption.
It should be noted that fig. 2 and fig. 3 are only for schematically illustrating a connection relationship between the sub-pixel 261 and the switch module 210, and do not represent an actual number of pixels or an actual arrangement manner of the first sub-pixel 262 and the second sub-pixel 263, in other embodiments, the first sub-pixel 262 and the second sub-pixel 263 may also be arranged in other arrangement manners, which is not specifically limited in this application.
Optionally, with continued reference to fig. 2 and 3, the lighting state includes a normally-on state and a picture state. Specifically, referring to fig. 2 and fig. 3, the normally-on state indicates that the sub-pixel 261 emits light but no image is displayed, and when the sub-pixel 261 is in the normally-on state, the sub-pixel may be used for illumination, light supplement, and the like; the display state indicating subpixel 261 can perform dynamic display such as video playback, character input, and photo display.
Optionally, with continued reference to fig. 2 and 3, the first signal line 220 provides a data signal, and the second signal line 230 provides a fixed voltage signal. Specifically, when the first signal line 220 transmits a data signal to both the first subpixel 262 and the second subpixel 263, both the first subpixel 262 and the second subpixel 263 are in a display state, and dynamic display can be performed according to the received data signal. When the first signal line 220 transmits a data signal to the first subpixel 262 and the second signal line 230 transmits a fixed voltage signal to the second subpixel 263, the first subpixel 262 is in a display state, and the second subpixel 263 is in a dark state, at this time, the display panel can be used in a foldable display device to meet the requirement of half-screen display, as shown in fig. 2.
In addition, when the display panel is used for different display requirements, the requirements on the pixel density (Pixels Per inc, PPI) are different, and based on this, the arrangement structure of the first sub-pixel 262 and the second sub-pixel 263 can be as shown in fig. 3, so that when the display panel is used for the picture display with high PPI requirement, the first sub-pixel 262 and the second sub-pixel 263 can both perform the picture display to meet the display requirement. When the display panel is used for displaying a picture with low PPI requirement, such as displaying time, date, etc., the first sub-pixel 262 may be made to display the picture, and the second sub-pixel may be in a dark state, so that the display panel may reduce power consumption while realizing the display requirement. When the switch module 210 is turned off and the input end does not transmit a signal to the first subpixel 262 and/or the second subpixel 263, the first subpixel 262 and the second subpixel 263 are in a normally-on state, and can emit light but do not display a picture, at this time, the display panel 200 may be used as a device for illumination or light supplement, and the like.
Optionally, fig. 4 is a schematic diagram illustrating a connection relationship between each transistor in the switch module 210 and the sub-pixel 261, fig. 5 is a partial enlarged view of the switch module 210, and referring to fig. 4-5, the control signal line 240 includes a first control signal line 241, a second control signal line 242, and a third control signal line 243; the switching module 210 includes a first transistor 216, a second transistor 217, and a third transistor 218; the source of the first transistor 216 is the first input terminal 211 of the switch module 210, the drain of the first transistor 216 is the first output terminal 214 of the switch module 210, and the control terminal 213 of the first transistor 216 is electrically connected to the first control signal line 241; the source of the second transistor 217 is electrically connected to the first input terminal 211 of the switch module 210, the drain of the second transistor 217 is the second output terminal 215 of the switch module 210, and the control terminal 213 of the second transistor 217 is electrically connected to the second control signal line 242; the source of the third transistor 218 is the second input terminal 212 of the switch module 210, the drain of the third transistor 218 is electrically connected to the second output terminal 215 of the switch module 210, and the control terminal 213 of the third transistor 218 is electrically connected to the third control signal line 243.
Specifically, referring to fig. 4 and fig. 5, the switch module 210 includes a first transistor 216, a second transistor 217, and a third transistor 218, wherein control terminals 213 of the first transistor 216, the second transistor 217, and the third transistor 218 are electrically connected to a first control signal line 241, a second control signal line 242, and a third control signal line 243, respectively, sources of the first transistor 216 and the second transistor 217 are connected together and electrically connected to a first input terminal 211 of the switch module 210, a drain of the first transistor 216 is used as a first output terminal 214 of the switch module 210, when the first control signal line 241 provides an on signal, the first transistor 216 is turned on, the first signal line 220 sends a data signal to the first subpixel 262 through the first transistor 216, the first subpixel 262 displays a picture, when the first transistor 216 is in an off state, the first subpixel 262 cannot receive the data signal, and at this time, the first subpixel 262 is turned on but does not display the picture, and is in a normally on state. The source of the third transistor 218 is used as the second input end 212 of the switch module 210, the drains of the second transistor 217 and the third transistor 218 are simultaneously connected to the second output end 215 of the switch module 210, when the second control signal line 242 provides an on signal, the second transistor 217 is turned on, the first signal line 220 sends a data signal to the second sub-pixel 263 through the second transistor 217, the second sub-pixel 263 displays a picture, when the third control signal line 243 provides an on voltage, the third transistor 218 is turned on, the second signal line 230 sends a fixed voltage signal to the second sub-pixel 263 through the third transistor 218, the second sub-pixel 263 is in a dark state, when the second transistor 217 and the third transistor 218 are both turned off, the second sub-pixel 263 does not receive the data signal and the fixed voltage signal, and therefore, the second sub-pixel 263 is in a normally bright state.
In this embodiment, the first sub-pixel 262 can be in a picture state, a dark state, or a normally bright state by controlling the on/off state of the first transistor 216, and the second sub-pixel 263 can be in a picture state, a dark state, or a normally bright state by controlling the on/off state of the second transistor 217 and the third transistor 218, so that the display panel 200 can be used for picture display, illumination, or light supplement, and meet different application requirements. In addition, when the first subpixel 262 is in the picture state, the second subpixel 263 can be in the dark state, so as to meet the requirement of half-screen display, the display panel 200 can be used in a foldable display, and when the display panel is applied to the foldable display, the load on the first data line 251 for transmitting the data signal during half-screen display is only the first subpixel 262 for displaying the picture, and the subpixel 261 in the dark state is not provided, so that the load on the data line 250 can be reduced, thereby being beneficial to saving power consumption.
It should be noted that, in this embodiment, the source is used as the input terminal, and the drain is used as the output terminal, which is only one implementation manner in this embodiment, and is not a limitation to this application.
Optionally, fig. 6 is a schematic diagram illustrating an arrangement structure of a first sub-pixel 262 and a second sub-pixel 263 according to an embodiment of the present disclosure, please refer to fig. 6, in which in a same sub-pixel column 260, the first sub-pixel 262 and the second sub-pixel 263 are alternately disposed; in the adjacent sub-pixel column 260, the first sub-pixels 262 are located in the same row, and the second sub-pixels 263 are located in the same row. Specifically, referring to fig. 6, the first sub-pixels 262 and the second sub-pixels 263 in the same sub-pixel column 260 are alternately arranged, and in the adjacent sub-pixel columns 260, the first sub-pixels 262 are located in the same row, and the second sub-pixels 263 are located in the same row, when the first data line and the second data line both send data signals, both the first sub-pixels 262 and the second sub-pixels 263 can display a picture. If the first transistor is turned off, the first sub-pixel 262 does not receive the data signal and is in a normally on state; if the second transistor and the third transistor are both turned off, the second sub-pixel 263 is in a normally-on state; if the second transistor is turned off, the third transistor is turned on, the second sub-pixel 263 receives the fixed voltage signal, and the second sub-pixel 263 is in a dark state. Thus, the first sub-pixel 262 and the second sub-pixel 263 can be in different states by controlling the on/off of the transistor, so as to meet different display requirements, for example, when a high PPI display requirement is required, the first sub-pixel 262 and the second sub-pixel 263 can both display a picture; when the low PPI display requirement is needed, the first sub-pixel can display the picture, and the second sub-pixel is in a dark state, so that the power consumption is reduced.
Optionally, fig. 7 is a schematic view illustrating another arrangement structure of the first sub-pixel 262 and the second sub-pixel 263 according to an embodiment of the present disclosure, please refer to fig. 7, in which the first sub-pixel 262 and the second sub-pixel 263 are alternately disposed in the same sub-pixel column 260; the sub-pixels 261 in the same row form a sub-pixel row 264, and the first sub-pixels 262 and the second sub-pixels 263 are alternately arranged in the same sub-pixel row 264. Specifically, referring to fig. 7, the first sub-pixels 262 and the second sub-pixels 263 in the same sub-pixel column 260 are alternately arranged, and the first sub-pixels 262 and the second sub-pixels 263 in the same sub-pixel row 264 are alternately arranged, so that when the first data line and the second data line both transmit data signals, the first sub-pixels 262 and the second sub-pixels 263 can both display images. If the first transistor is turned off, the first sub-pixel 262 does not receive the data signal and is in a normally on state; if the second transistor and the third transistor are both turned off, the second sub-pixel 263 is in a normally-on state; if the second transistor is turned off, the third transistor is turned on, the second sub-pixel 263 receives the fixed voltage signal, and the second sub-pixel 263 is in a dark state. Thus, the first sub-pixel 262 and the second sub-pixel 263 can be in different states by controlling the on/off of the transistor, so as to meet different display requirements, for example, when a high PPI display requirement is required, the first sub-pixel 262 and the second sub-pixel 263 can both display a picture; when the low PPI display requirement is required, the first sub-pixel can be used to display a picture, and the second sub-pixel is in a dark state, which is not only beneficial to reducing power consumption, but also can use the display panel 200 as different devices, such as display, illumination, and the like, to meet different requirements of users.
Optionally, fig. 8 is a schematic diagram illustrating an arrangement structure of sub-pixels 261 in a display area 201 according to an embodiment of the present disclosure, please refer to fig. 8, in which the display area 201 includes a first display area 203 and a second display area 204, and the first display area 203 and the second display area 204 are arranged along a first direction; a bending region 205 is arranged between the first display region 203 and the second display region 204, and the bending region 205 has a bending axis 206 extending along the second direction; the display pixel density of the second display area 204 in the second display state is less than the display pixel density of the first display area 203 in the second display state.
Specifically, referring to fig. 8, in the present embodiment, the display area 201 is divided into a first display area 203 and a second display area 204 arranged along a column direction, a bending area 205 exists between the first display area 203 and the second display area 204, and the display panel 200 can be bent along a bending axis 206 in the bending area 205, where the bending axis 206 is not actually present, but is only used for more clearly explaining a bending state, and in actual use, the second display area 204 can be controlled to be in different display states by detecting the bending state or the bending angle.
In addition, in the embodiment, in the second display state, the display pixel density of the second display area 204 is smaller than the display pixel density of the first display area 203, and in the second display state, the first sub-pixel 262 is lit and the second sub-pixel 263 is in a dark state, so that when the display pixel density of the second display area 204 in the second display state is smaller than the display pixel density of the first display area 203, the pixel density of the first sub-pixel 262 in the first display area 203 is greater than the pixel density of the first sub-pixel 262 in the second display area 204, where the pixel density refers to an actual pixel density, that is, the number of the first sub-Pixels 262 (Pixels Per, inc, PPI) disposed in a unit area. The pixel density of the first sub-pixels 262 in the first display area 203 is greater than the pixel density of the first sub-pixels 262 in the second display area 204, which can be achieved by different embodiments, for example, the first sub-pixels 262 and the second sub-pixels 263 are disposed in the second display area 204, and only the first sub-pixels 262 are disposed in the first display area 203, so that the requirements of the display panel 200 for different resolutions of different areas can be satisfied.
In order to meet the requirement that the density of the display pixels of the second display area 204 is less than that of the first display area 203 in the second display state, in addition to the embodiment shown in fig. 8, optionally, fig. 9 is another schematic diagram of an arrangement structure of the sub-pixels 261 in the display area 201 provided in the embodiment of the present application, please refer to fig. 9, in which the first display area 203 is configured to include the first sub-pixels 262; the second display area 204 includes a second sub-pixel 263. Specifically, referring to fig. 9, in the second display state, the first sub-pixel 262 is turned on, the second sub-pixel 263 is in a dark state, when only the first sub-pixel 262 is in the first display area 203 and only the second sub-pixel 263 is in the second display area 204, the first display area 203 is in a turned-on state, and the second display area 204 is in a black state, and at this time, the display panel 200 can be folded, and since the turned-on state includes a normally-on state and a frame state, when the first display area 203 is in the turned-on state, if the first sub-pixel 262 receives the data signal provided by the first data line 251, the first display area 203 can perform frame display, and thus can be used as a display; if the first sub-pixel 262 does not receive the data signal, the first sub-pixel 262 is in a normally bright state, that is, the first display area 203 is in a normally bright state, and at this time, the display device may be used for illumination or supplementary lighting.
Optionally, fig. 10 is a schematic view illustrating another arrangement structure of sub-pixels 261 in a display area 201 provided in an embodiment of the present application, please refer to fig. 10, in which the display area 201 further includes a third display area 207, along the first direction, the first display area 203 is located between the second display area 204 and the third display area 207, and the third display area 207 includes a second sub-pixel 263. Specifically, in the present embodiment, the display area 201 is divided into the first display area 203, the second display area 204, and the third display area 207, and the first display area 203 is located between the second display area 204 and the third display area 207 along the column direction, the first sub-pixel 262 is disposed in the first display area 203, and the second sub-pixel 263 is disposed in the second display area 204 and the third display area 207, so that when a user needs to display a picture in a partial area in the middle of the display area 201, the first sub-pixel 262 receives a data signal while the second sub-pixel 263 receives a fixed voltage signal, so that the third display area 207 and the second display area 204 are both in a black screen state, and the first display area 203 displays a picture alone, thereby being capable of meeting the requirement that only the partial area in the middle of the display area 201 displays a picture.
It should be noted that fig. 8-10 are only schematic illustrations of the arrangement of sub-pixels 261 in first display area 203, second display area 204, and third display area 207, and do not represent actual sub-pixel sizes and numbers.
Optionally, with continued reference to fig. 9, the actual pixel density of the first display area 203 is equal to the actual pixel density of the second display area 204. Specifically, referring to fig. 9, in the present embodiment, the actual pixel density of the first display area 203 is set to be equal to the actual pixel density of the second display area 204, where the actual pixel density also refers to the number of Pixels in a unit area (PPI), the PPI value is related to the fidelity of the displayed image, and when the actual pixel densities of the first display area 203 and the second display area 204 are equal, that is, the PPI is equal, the first display area 203 and the second display area 204 can display the image with the same density, so that the picture quality of the two areas is the same, and thus, when the display panel 200 is full-screen, the pictures of the areas of the display panel 200 are uniform, which is beneficial to improving the display effect.
Optionally, fig. 11 is a schematic view illustrating another arrangement structure of sub-pixels 261 in the display area 201 according to an embodiment of the present application, please refer to fig. 11, where an actual pixel density of the first display area 203 is greater than an actual pixel density of the second display area 204. Specifically, in the present embodiment, the actual pixel density of the first display area 203 is set to be greater than the actual pixel density of the second display area 204, that is, the PPI of the first display area 203 is greater than the PPI of the second display area 204, the PPI value is proportional to the fidelity of the display image, and the higher the PPI value is, the more picture details are abundant during picture display, so that the fidelity of the picture is higher. Optionally, the second display area 204 is used for placing an optical electronic element, and because the PPI of the second display area 204 is low, the optical electronic element may be disposed in the second display area 204 and located on a side of the second sub-pixel 263 away from the light emitting surface, and the optical electronic element may be, for example, an optical sensor, a distance sensor, a camera, an earpiece, an iris recognition sensor, a depth sensor, or the like, which may be specifically selected according to actual needs, and is not limited in this application.
Based on the same inventive concept, the present application provides a driving method of a display panel 200, and fig. 12 is a flowchart of the driving method of the display panel 200 according to the embodiment of the present application, please refer to fig. 2 to fig. 12, where the driving method of the display panel 200 according to the embodiment of the present application includes:
step 10: the turn-on voltage or the turn-off voltage is supplied through the control signal line 240.
Step 20: in the first display state, the switch module 210 transmits the data signal provided by the first signal line 220 to at least a portion of the sub-pixels 261 or the switch module 210 does not provide the data signal to the sub-pixels 261, and both the first sub-pixels 262 and the second sub-pixels 263 are in the on state.
Step 30: in the second display state, the switch module 210 transmits the fixed voltage signal provided by the second signal line 230 to the second sub-pixel 263, the switch module 210 transmits the data signal provided by the first signal line 220 to the first sub-pixel 262 or the switch module 210 does not provide the data signal to the first sub-pixel 262, wherein the first sub-pixel 262 is in a lighting state and the second sub-pixel 263 is in a dark state.
It should be noted that, the steps 20 and 30 are only schematic illustrations and are not limited to the display state of the display panel 200, and in other embodiments, the display states of the first sub-pixel 262 and the second sub-pixel 263 may be specifically adjusted according to actual needs, that is, the execution sequence of the steps 20 and 30 is not limited.
Specifically, referring to fig. 2 to 12, in the driving method of the display panel 200 provided by the present application, the control signal line 240 provides the on voltage or the off voltage to the switch module 210 through step 10, and then the display panel 200 is in the first display state in step 20, when the display panel 200 is in the first display state, the first subpixel 262 and/or the second subpixel 263 may receive the data signal or not receive the data signal, so that both the first subpixel 262 and the second subpixel 263 are in the lighting state. Through the step 30, the display panel 200 can be in the second display state, and when the display panel 200 is in the second display state, the second sub-pixel 263 receives the fixed voltage signal provided by the second signal line 230, so that the second sub-pixel 263 is in a dark state, and the first sub-pixel 262 receives the data signal or does not receive the data signal, so that the first sub-pixel 262 is in a lighting state. According to the display panel, the switch module 210 controls the display panel 200 to be in the first display state or the second display state, so that the first sub-pixel 262 and the second sub-pixel 263 are lightened simultaneously, or the first sub-pixel 262 is lightened while the second sub-pixel 263 is in the dark state, so that the display panel 200 can be controlled to be in different display states according to different application occasions, different requirements of users can be met, and convenience is brought to the users.
Alternatively, referring to fig. 2, the lighting state includes a normally-on state and a picture state. Specifically, the lighting state includes a normally-on state and a picture state, where the normally-on state indicates that the sub-pixel 261 emits light but no picture is displayed, and when the sub-pixel 261 is in the normally-on state, the lighting state may be used for illumination, light supplement, and the like; the display state indicating subpixel 261 can display dynamic pixels such as video playback, character input, and photo display.
Optionally, referring to fig. 4, the control signal line 240 includes a first control signal line 241, a second control signal line 242, and a third control signal line 243; the switching module 210 includes a first transistor 216, a second transistor 217, and a third transistor 218; the source of the first transistor 216 is the first input terminal 211 of the switch module 210, the drain of the first transistor 216 is the first output terminal 214 of the switch module 210, and the control terminal 213 of the first transistor 216 is electrically connected to the first control signal line 241; the source of the second transistor 217 is connected to the first input terminal 211 of the switch module 210, the drain of the second transistor 217 is the second output terminal 215 of the switch module 210, and the control terminal 213 of the second transistor 217 is electrically connected to the second control signal line 242; the source of the third transistor 218 is the second input terminal 212 of the switch module 210, the drain of the third transistor 218 is connected to the second output terminal 215 of the switch module 210, and the control terminal 213 of the third transistor 218 is electrically connected to the third control signal line 243.
In the first display state, the first control signal line 241 and the second control signal line 242 provide an on voltage, the first transistor 216 and the second transistor 217 are in an on state, the first transistor 216 provides the data signal provided by the first signal line 220 to the first subpixel 262, the first subpixel 262 is in a picture state, the second transistor 217 provides the data signal provided by the first signal line 220 to the second subpixel 263, the second subpixel 263 is in the picture state, the third control signal line 243 provides an off voltage, and the third transistor 218 is in the off state; in the second display state, the first control signal line 241 provides an on voltage, the first transistor 216 transmits the data line 250 provided by the first signal line 220 to the first sub-pixel 262, the first sub-pixel 262 is in a picture state, the second control signal line 242 provides an off voltage, the second transistor 217 is in an off state, the third control signal line 243 provides an on voltage, and the third transistor 218 transmits the fixed voltage signal provided by the second signal line 230 to the second sub-pixel 263, wherein the first sub-pixel 262 is in the picture state and the second sub-pixel 263 is in a dark state.
Specifically, with continued reference to fig. 4, the switch module 210 includes a first transistor 216, a second transistor 217, and a third transistor 218, wherein the control terminals 213 of the first transistor 216, the second transistor 217, and the third transistor 218 are electrically connected to the first control signal line 241, the second control signal line 242, and the third control signal line 243, respectively, the sources of the first transistor 216 and the second transistor 217 are connected together and are electrically connected to the first input terminal 211 of the switch module 210, the drain of the first transistor 216 is used as the first output terminal 214 of the switch module 210, the source of the third transistor 218 is used as the second input terminal 212 of the switch module 210, and the drains of the second transistor 217 and the third transistor 218 are connected to the second output terminal 215 of the switch module 210.
When the display panel 200 is in the first display state, the first subpixel 262 and the second subpixel 263 are both in a lighting state, and the lighting state is divided into a normally-on state and a picture state according to the display state of the subpixel 261. When the first control signal line 241 and the second control signal line 242 both provide the on voltage and the third control signal line 243 provides the off voltage, the third transistor 218 is turned off, the first transistor 216 and the second transistor 217 are turned on, the first signal line 220 sends the data signals to the first subpixel 262 and the second subpixel 263 through the first transistor 216 and the second transistor 217, respectively, and after the data signals are received by the first subpixel 262 and the second subpixel 263, the image display can be performed according to the received data signals, that is, the first subpixel 262 and the second subpixel 263 are both in the image state. When the first control signal line 241 provides an on voltage, the second control signal line 242 and the third control signal line 243 provide an off voltage, the first transistor 216 is turned on, the second transistor 217 and the third transistor 218 are both in an off state, the first signal line transmits a data signal to the first subpixel 262 through the first transistor 216, the first subpixel 262 performs image display according to the received data signal, that is, the first subpixel 262 is in an image state, at this time, since the second transistor 217 and the third transistor 218 are both turned off, the second subpixel 263 does not receive the data signal nor receives a fixed voltage signal, and the second subpixel 263 emits light but does not display an image and is in a normally-on state.
Of course, in the first display state, the states of the first sub-pixel 262 and the second sub-pixel 263 may be other situations, for example: when the first transistor 216 and the third transistor 218 are turned off and the second transistor 217 is turned on, the first sub-pixel 262 is in a normally-on state, and the second sub-pixel 263 is in a display state; when the first transistor 216, the second transistor 217, and the third transistor 218 are all turned off, the first subpixel 262 and the second subpixel 263 are all in a normally-on state.
When the display panel 200 is in the second display state, the first sub-pixel 262 is in a light-up state, and the second sub-pixel 263 is in a dark state, wherein the light-up state includes a normally-on state and a frame state. When the first control signal line 241 provides the turn-on voltage, the first transistor 216 is turned on, the first signal line 220 transmits the data signal to the first subpixel 262, the first subpixel 262 can perform image display, and the first subpixel 262 is in a display state. When the first control signal line 241 provides the off-voltage, the first transistor 216 is turned off, the first sub-pixel 262 does not receive the data signal, the first sub-pixel 262 is in the normally-on state, the second transistor 217 is turned off, the third transistor 218 is turned on, and the second signal line 230 transmits the fixed voltage signal to the second sub-pixel 263 through the third transistor 218, so that the second sub-pixel 263 is in the dark state.
The display states of the display panel 200 will be described with reference to tables, and table 1 is a comparison table of the display states of the display panel and the transistor on state.
TABLE 1 shows the comparison table of the states and the conduction conditions of the transistors
As can be seen from table 1, the display states of the first sub-pixel and the second sub-pixel can be controlled according to the on-off states of the first transistor, the second transistor and the third transistor, wherein the on-off states of the transistors are controlled according to the on-voltage and the off-voltage provided by the control signal line, for example, when the first control signal line discloses the on-voltage, the first transistor is turned on; when the first control signal line supplies an off-voltage, the first transistor is turned off. Similarly, the second transistor and the third transistor are turned on or off by the second control signal line and the third control signal line, respectively.
In this embodiment, the first sub-pixel 262 and the second sub-pixel 263 can be in different display states by controlling the on/off states of the first transistor 216, the second transistor 217, and the third transistor 218, so that the display panel 200 can be used for image display, illumination, or light supplement, and meet different application requirements. In addition, when the first subpixel 262 is in the picture state, the second subpixel 263 can be in the dark state, so as to meet the requirement of half-screen display, the display panel 200 can be used in a foldable display, and when the display panel is applied to the foldable display, the load on the first data line 251 for transmitting the data signal during half-screen display is only the first subpixel 262 for displaying the picture, and the subpixel 261 in the dark state is not provided, so that the load on the data line 250 can be reduced, thereby being beneficial to saving power consumption.
Optionally, the first transistor 216, the second transistor 217, and the third transistor 218 include PMOS transistors. Specifically, in this embodiment, the first transistor 216, the second transistor 217, and the third transistor 218 are PMOS transistors, the PMOS transistors are N-type silicon substrates, the doping type of the source and drain regions is P-type, wherein the majority carriers are electrons, and the minority carriers are holes, and current is carried by the flow of the holes. Therefore, when the control signal line 240 provides a negative voltage, the corresponding transistor is turned on, so that the received signal can be transmitted to the sub-pixel 261, the first sub-pixel 262 is in a picture state or a normally bright state, and the second sub-pixel 263 is in a picture state, a normally bright state or a dark state. The negative voltage that can turn on the PMOS transistor is only turned on as long as the gate voltage is lower than the source voltage by a certain value with respect to the source voltage. In addition, the first transistor 216, the second transistor 217, and the third transistor 218 are PMOS transistors, which are only one implementation manner in this embodiment and are not a limitation to this application, and in other embodiments, other types of transistors, such as NMOS transistors, may also be used.
Based on the same inventive concept, the present application further provides a display device 300, please refer to fig. 13, fig. 13 is a schematic structural diagram of the display device 300 according to the embodiment of the present application, the display device 300 includes a display panel 200, and the display panel 200 is any one of the display panels 200 according to the embodiments of the present application. It should be noted that, for the embodiments of the display device 300 provided in the present application, reference may be made to the embodiments of the display panel 200, and the same parts are not described again. The display device 300 provided by the present application may be: any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
According to the embodiments, the application has the following beneficial effects:
by controlling the display states of the first sub-pixel and the second sub-pixel, the display panel can be in a first display state and a second display state, when the display panel is in the first display state, the first sub-pixel and the second sub-pixel are both lightened, when the display panel is in the second display state, only the first sub-pixel is lightened, and the second sub-pixel is in a dark state, namely, the display pixel density of the display panel in the first display state is greater than that in the second display state, therefore, different display functions of the display panel can be realized aiming at different application occasions, different requirements of users can be met, and convenience is brought to the use of the users. In addition, the first sub-pixel and the second sub-pixel are respectively connected to different data lines, so that the load on the first data line is only the first sub-pixel, and therefore when only the first sub-pixel is lightened, the load on the first data line can be reduced, and power consumption is saved.
The foregoing description shows and describes several alternative embodiments of the application, but as aforementioned, it is to be understood that the application is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the application, which is to be protected by the claims appended hereto.
Claims (19)
1. A display panel, comprising: the circuit comprises a plurality of switch modules, a plurality of first signal lines, a plurality of data lines, a plurality of control signal lines and a second signal line;
the display panel comprises a display area and a non-display area surrounding the display area, wherein the display area comprises a first display area and a second display area, and the first display area and the second display area are arranged along a first direction; the switch module is positioned in the non-display area on one side of the first display area, which is far away from the second display area;
the display area comprises a plurality of sub-pixel columns, and the sub-pixel columns are arranged along a second direction; the sub-pixel column comprises a plurality of sub-pixels, the sub-pixels are arranged along a first direction, and each sub-pixel comprises a first sub-pixel and a second sub-pixel; the first direction and the second direction intersect;
the first sub-pixel and the second sub-pixel which are at least partially positioned in the same sub-pixel column are respectively connected with different data lines; the data lines comprise a first data line and a second data line, the first sub-pixel is electrically connected with the first data line, and the second sub-pixel is electrically connected with the second data line;
the switch module comprises a first input end, a second input end and a plurality of control ends, the first input end is electrically connected with the first signal line, the second input end is electrically connected with the second signal line, and the plurality of control ends of the switch module are connected with the plurality of control signal lines; the switch module further comprises a first output end and a second output end, the first output end is electrically connected with the first data line, and the second output end is electrically connected with the second data line;
the display panel comprises a first display state and a second display state, and the switch module is used for switching the first display state and the second display state;
the display pixel density of the display panel in the first display state is greater than the display pixel density of the display panel in the second display state;
in the first display state, the first sub-pixel and the second sub-pixel are both in a lit state; in the second display state, the first sub-pixel is in a light state, and the second sub-pixel is in a dark state;
the control signal line comprises a first control signal line, a second control signal line and a third control signal line;
the switch module comprises a first transistor, a second transistor and a third transistor;
a source electrode of the first transistor is a first input end of the switch module, a drain electrode of the first transistor is the first output end of the switch module, and a control end of the first transistor is electrically connected with the first control signal line;
a source electrode of the second transistor is electrically connected with a first input end of the switch module, a drain electrode of the second transistor is the second output end of the switch module, and a control end of the second transistor is electrically connected with the second control signal line;
the source of the third transistor is a second input end of the switch module, the drain of the third transistor is electrically connected to a second output end of the switch module, and the control end of the third transistor is electrically connected to the third control signal line.
2. The display panel according to claim 1,
the lighting state includes a normally-on state and a picture state.
3. The display panel according to claim 1,
the first signal line provides a data signal and the second signal line provides a fixed voltage signal.
4. The display panel according to claim 3,
in the same sub-pixel column, the first sub-pixels and the second sub-pixels are alternately arranged;
in the adjacent sub-pixel columns, the first sub-pixels are located in the same row, and the second sub-pixels are located in the same row.
5. The display panel according to claim 3,
in the same sub-pixel column, the first sub-pixels and the second sub-pixels are alternately arranged;
the sub-pixels positioned in the same row form a sub-pixel row, and the first sub-pixels and the second sub-pixels are alternately arranged in the same sub-pixel row.
6. The display panel according to claim 1,
the display pixel density of the second display area in the second display state is less than the display pixel density of the first display area in the second display state.
7. The display panel according to claim 6,
a bending area is arranged between the first display area and the second display area, and the bending area is provided with a bending shaft extending along the second direction.
8. The display panel according to claim 6, wherein the first sub-pixel and the second sub-pixel are included in the second display region; the first display area comprises the first sub-pixel.
9. The display panel according to claim 6,
the first display area comprises the first sub-pixel; the second display region includes the second sub-pixel.
10. The display panel according to claim 9,
the display area further comprises a third display area, the first display area is located between the second display area and the third display area along the first direction, and the third display area comprises the second sub-pixels.
11. The display panel according to claim 9,
the actual pixel density of the first display area is equal to the actual pixel density of the second display area.
12. The display panel according to claim 9,
the actual pixel density of the first display area is greater than the actual pixel density of the second display area.
13. The display panel according to claim 12,
the second display area is used for placing optical electronic elements.
14. A driving method for a display panel, for driving the display panel of claim 1, comprising:
providing a turn-on voltage or a turn-off voltage through the control signal line;
in the first display state, the switch module transmits the data signal provided by the first signal line to at least part of the sub-pixels or the switch module does not provide the data signal to the sub-pixels, and the first sub-pixels and the second sub-pixels are both in a lighting state;
in the second display state, the switch module transmits the fixed voltage signal provided by the second signal line to the second sub-pixel, and the switch module transmits the data signal provided by the first signal line to the first sub-pixel or the switch module does not provide the data signal to the first sub-pixel, wherein the first sub-pixel is in a lighting state and the second sub-pixel is in a dark state.
15. The method for driving a display panel according to claim 14,
the lighting state includes a normally-on state and a picture state.
16. The method for driving a display panel according to claim 15,
the control signal line comprises a first control signal line, a second control signal line and a third control signal line;
the switch module comprises a first transistor, a second transistor and a third transistor;
the source electrode of the first transistor is a first input end of the switch module, the drain electrode of the first transistor is a first output end of the switch module, and the control end of the first transistor is electrically connected with the first control signal line;
a source electrode of the second transistor is connected with a first input end of the switch module, a drain electrode of the second transistor is the second output end of the switch module, and a control end of the second transistor is electrically connected with the second control signal line;
the source of the third transistor is a second input end of the switch module, the drain of the third transistor is connected with a second output end of the switch module, and the control end of the third transistor is electrically connected with the third control signal line;
in the first display state, the first control signal line and the second control signal line supply an on voltage, the first transistor and the second transistor are in an on state, the first transistor supplies the data signal supplied from the first signal line to the first subpixel, the first subpixel is in a picture state, the second transistor supplies the data signal supplied from the first signal line to the second subpixel, the second subpixel is in a picture state, the third control signal line supplies an off voltage, and the third transistor is in an off state;
in the second display state, the first control signal line provides the on-voltage, the first transistor transmits the data signal provided by the first signal line to the first sub-pixel, the first sub-pixel is in a picture state, the second control signal line provides the off-voltage, the second transistor is in an off-state, the third control signal line provides the on-voltage, and the third transistor transmits the fixed voltage signal provided by the second signal line to the second sub-pixel, wherein the first sub-pixel is in a picture state and the second sub-pixel is in a dark state.
17. The method for driving a display panel according to claim 16,
the first display state further includes that the first control signal line provides the on-voltage, the first transistor transmits a data line provided by the first signal line to the first sub-pixel, the first sub-pixel is in a picture state, the second control signal line provides the off-voltage, the second transistor is in an off state, the third control signal line provides the off-voltage, and the third transistor is in an off state, where the second sub-pixel is in a normally-on state and the first sub-pixel is in a picture state.
18. The method for driving the display panel according to claim 16, wherein the first transistor, the second transistor, and the third transistor include PMOS transistors.
19. A display device comprising the display panel according to any one of claims 1 to 13.
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| CN112133250B (en) * | 2020-10-14 | 2021-11-30 | 武汉天马微电子有限公司 | Organic light emitting display device and driving method thereof |
| CN113096600B (en) * | 2021-03-30 | 2022-09-06 | 京东方科技集团股份有限公司 | Folding display panel, folding display device, driving method of folding display device and electronic equipment |
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| CN108766254B (en) * | 2018-05-30 | 2020-05-05 | 上海天马有机发光显示技术有限公司 | Foldable display panel, display device, image compensation method and device thereof |
| CN109920359B (en) * | 2019-03-29 | 2022-06-10 | 武汉天马微电子有限公司 | Display panel, display panel driving method and display device |
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