CN111785208B - Panel driving circuit, display panel, display device and panel driving method - Google Patents
Panel driving circuit, display panel, display device and panel driving method Download PDFInfo
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- CN111785208B CN111785208B CN202010779107.6A CN202010779107A CN111785208B CN 111785208 B CN111785208 B CN 111785208B CN 202010779107 A CN202010779107 A CN 202010779107A CN 111785208 B CN111785208 B CN 111785208B
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- G—PHYSICS
- 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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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- G—PHYSICS
- 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
- G09G3/03—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes specially adapted for displays having non-planar surfaces, e.g. curved displays
- G09G3/035—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes specially adapted for displays having non-planar surfaces, e.g. curved displays for flexible display surfaces
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2380/00—Specific applications
- G09G2380/02—Flexible displays
Abstract
The embodiment of the application provides a panel driving circuit, a display panel, a display device and a panel driving method. The panel driving circuit includes: at least two area driving circuits and at least one set of first switching devices; a group of first switching devices are arranged between a plurality of scanning signal lines of adjacent area driving circuits, each group of first switching devices are used for receiving a first level signal of a control signal line when a display area corresponding to the adjacent area driving circuit is in a folded state, and the group of first switching devices are disconnected; and when the display areas corresponding to the adjacent area driving circuits are in the unfolding state, receiving a second level signal of the control signal line, and turning on the group of first switching devices. According to the embodiment of the application, when the display panel is in a folded state, partial display area display and partial display area screen refreshing are achieved, and therefore the technical problem that the power consumption of the foldable display panel is high can be solved.
Description
Technical Field
The present disclosure relates to the field of display panel driving technologies, and in particular, to a panel driving circuit, a display panel, a display device, and a panel driving method.
Background
With the upgrading of display devices, flexible screen technology has more and more entered the field of vision of people, and Organic Light-Emitting diodes (OLEDs) gradually occupy the market year by year. The OLED folding screen is thin and can be shaped, and is attracting much attention. Due to the limitation of the folding mechanism, the position of the battery is limited, the capacity of the battery is limited, and the OLED folding screen puts forward the requirement of low power consumption on the display panel.
In the prior art, the entire display area of the foldable display panel is displayed, which results in high power consumption of the display panel.
Disclosure of Invention
The present application provides a panel driving circuit, a display panel, a display device and a panel driving method for overcoming the disadvantages of the prior art, so as to solve the technical problem of high power consumption of the foldable display panel in the prior art.
In a first aspect, an embodiment of the present application provides a panel driving circuit, including: at least two area driving circuits and at least one set of first switching devices;
each of the area driving circuits includes a plurality of scanning signal lines;
a group of first switching devices are arranged between a plurality of scanning signal lines of adjacent area driving circuits, and the first end and the second end of each first switching device are respectively and electrically connected with the output end of the corresponding scanning signal line in the adjacent area driving circuit;
in each group of first switching devices, the control end of each first switching device is electrically connected with one control signal line, and is used for receiving a first level signal of the control signal line when the display area corresponding to the adjacent area driving circuit is in a folded state, and the group of first switching devices is disconnected; and when the display areas corresponding to the adjacent area driving circuits are in the unfolding state, receiving a second level signal of the control signal line, and turning on the group of first switching devices.
In one possible implementation, each of the area driving circuits includes a plurality of shift registers and a plurality of second switching devices;
the input end and the output end of each scanning signal line are respectively and correspondingly electrically connected with the control ends of a shift register and a second switching device of the area driving circuit where the scanning signal lines are located.
In one possible implementation, the plurality of scanning signal lines of adjacent area driving circuits are arranged in one-to-one correspondence.
In one possible implementation manner, in each group of the first switching devices, the control ends of the first switching devices are electrically connected with the same control signal line.
In a second aspect, embodiments of the present application further provide a display panel, including at least two display regions and the panel driving circuit according to the first aspect;
each of the area driving circuits corresponds to one display area.
In one possible implementation, the at least two display regions include a first display region and a second display region;
the at least two area driving circuits comprise a first area driving circuit and a second area driving circuit;
a first display region and a second display region corresponding to the first region driving circuit and the second region driving circuit, respectively;
a group of first switching devices is arranged at intervals near a boundary between the first display region and the second display region.
In a third aspect, an embodiment of the present application further provides a display device, including: such as the display panel of the third aspect.
In one possible implementation, the display device further includes: the first control unit is electrically connected with the control signal line and is used for controlling the control signal line of the control end of a group of first switching devices corresponding to the adjacent display areas to output a first level signal when the adjacent display areas are in a folded state, and the group of first switching devices are disconnected, so that the adjacent area driving circuits independently drive the corresponding display areas; when the adjacent display areas are in the unfolded state, the control signal lines of the control ends of the first switch devices corresponding to the adjacent display areas are controlled to output second level signals, so that the adjacent area driving circuits drive the corresponding display areas together.
In one possible implementation, the display device further includes:
the bending sensor is at least partially arranged at the boundary of the adjacent display areas and used for outputting a bending signal when the adjacent display areas are bent to enable the resistance value of the bending sensor to reach a preset resistance value threshold;
and the second control unit is electrically connected with the control signal line and the bending sensor and used for controlling the control signal line of the control end of the group of first switching devices corresponding to the adjacent display areas to output a first level signal when the bending signal is acquired.
In a fourth aspect, an embodiment of the present application further provides a panel driving method applied to the panel driving circuit of the first aspect or the display panel of the second aspect, including:
when the adjacent display areas are in a folded state, the control signal lines of the control ends of a group of first switching devices corresponding to the adjacent display areas are controlled to output first level signals, and the group of first switching devices are switched off, so that the adjacent area driving circuits independently drive the corresponding display areas;
when the adjacent display areas are in the unfolded state, the control signal lines of the control ends of the first switch devices corresponding to the adjacent display areas are controlled to output second level signals, so that the adjacent area driving circuits drive the corresponding display areas together.
In one possible implementation manner, when adjacent display regions are in a folded state, a control signal line controlling a control terminal of a group of first switching devices corresponding to the adjacent display regions outputs a first level signal, including:
when a bending signal of a bending sensor is acquired, determining that adjacent display areas are in a folded state; the bending sensor is at least partially arranged at the boundary of the adjacent display areas, and when the adjacent display areas are bent to enable the resistance value of the bending sensor to reach a preset resistance value threshold value, a bending signal is output;
and the control signal line of the control end of the first switch device corresponding to the adjacent display area is controlled to output a first level signal.
The beneficial technical effects brought by the technical scheme provided by the embodiment of the application comprise:
according to the embodiment of the application, a group of first switch devices are arranged between a plurality of scanning signal lines of adjacent area driving circuits of a panel driving circuit, and the first end and the second end of each first switch device are respectively and electrically connected with the output end of the corresponding scanning signal line in the adjacent area driving circuit, so that the corresponding scanning signal line in the adjacent area driving circuit can be electrically connected and disconnected through the first switch device. Meanwhile, according to the embodiment of the application, the first level signal or the second level signal is output to the control end of the first switch device through the control signal line, and the first switch device is turned on and off, so that the corresponding scanning signal lines in the adjacent area driving circuits are electrically connected and disconnected, and the adjacent area driving circuits can independently drive the corresponding display areas.
By applying the embodiment of the application, when the adjacent display areas are in the folded state, the first switching device is controlled to be disconnected, the scanning signal lines of the adjacent area driving circuits are disconnected, and the adjacent area driving circuits can independently drive the corresponding display areas, so that the display device can control the display areas needing to display pictures to display, and the display areas needing no pictures do not need to be input with electric signals and are in the screen-rest state. According to the embodiment of the application, the display of a part of the display area can be realized in a display screen folding mode according to different application conditions, and the part of the display area is used for displaying the application scene of the screen, so that the power consumption of the foldable display panel is reduced.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a panel driving circuit according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a display device according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of another display device according to an embodiment of the present disclosure, applied to a first display area to display a scene of a picture;
fig. 4 is a schematic structural diagram of another display device provided in the embodiment of the present application, in which a first display area and a second display area are in an expanded state;
fig. 5 is a schematic structural diagram of another display device provided in an embodiment of the present application, in which a first display region and a second display region are in a folded state;
fig. 6 is a flowchart of a panel driving method according to an embodiment of the present disclosure.
Reference numerals:
100-area driving circuit, 101-first area driving circuit, 102-second area driving circuit, 110-scanning signal line, 120-second switching device, 130-shift register;
200-a first switching device;
300-control signal lines;
500-display area, 501-first display area, 502-second display area;
600-a first control unit;
700-bending sensor;
800-second control unit.
Detailed Description
Reference will now be made in detail to the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar parts or parts having the same or similar functions throughout. In addition, if a detailed description of the known art is not necessary for illustrating the features of the present application, it is omitted. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.
The following describes the technical solutions of the present application and how to solve the above technical problems with specific embodiments.
An embodiment of the present application provides a panel driving circuit, as shown in fig. 1, the panel driving circuit includes: at least two area driving circuits 100 and at least one set of first switching devices 200.
Each of the area driving circuits 100 includes a plurality of scanning signal lines 110.
A group of first switching devices 200 is disposed between the plurality of scanning signal lines 110 of adjacent area driving circuits 100, and a first end and a second end of each first switching device 200 are electrically connected to the output end of the corresponding scanning signal line 110 of the adjacent area driving circuit 100.
In each group of the first switching devices 200, the control terminal of the first switching device 200 is electrically connected to one control signal line 300, and is configured to receive the first level signal of the control signal line 300 when the display area 500 corresponding to the adjacent area driving circuit 100 is in the folded state, and the group of the first switching devices 200 is turned off; when the display area 500 corresponding to the adjacent area driving circuit 100 is in the unfolded state, the second level signal of the control signal line 300 is received, and the set of first switching devices 200 is turned on.
In some embodiments, referring to fig. 1, each of the local driving circuits 100 includes a plurality of shift registers (GOAs) 130 and a plurality of second switching devices 120.
The input end and the output end of each scanning signal line 110 are electrically connected to one shift register 130 and one second switching device 120 of the area driving circuit 100 where the scanning signal line 110 is located. The scan signal lines 110 are electrically connected to the control terminal of the second switching device 120, and the shift register 130 enables the scan signal lines 110 to sequentially output scan signals for driving the display area 500 to display.
In the embodiment of the present application, a set of first switching devices 200 is disposed between the plurality of scanning signal lines 110 of the adjacent area driving circuits 100 of the panel driving circuit, and a first end and a second end of each first switching device 200 are electrically connected to the output end of the corresponding scanning signal line 110 in the adjacent area driving circuit 100, respectively, so that the corresponding scanning signal line 110 in the adjacent area driving circuit 100 can be electrically connected and disconnected through the first switching device 200. Meanwhile, in the embodiment of the present application, the control signal line 300 outputs the first level signal or the second level signal to the control terminal of the first switching device 200, so as to turn on and off the first switching device 200, thereby electrically connecting and disconnecting the corresponding scanning signal line 110 in the adjacent area driving circuit 100, and enabling the adjacent area driving circuit 100 to separately drive the corresponding display area 500.
Based on the embodiment of the present application, the panel driving circuit may include a plurality of area driving circuits 100, each area driving circuit 100 controls one display area 500, and only by correspondingly arranging a group of first switching devices 200 between a plurality of scanning signal lines 110 of adjacent area driving circuits 100, the corresponding scanning signal lines 110 in the adjacent area driving circuits 100 may be controlled to be electrically connected and disconnected through the first switching devices 200 according to actual display requirements, so as to control display and information screen of the display area 500. Meanwhile, when the corresponding scan signal lines 110 in the adjacent area driving circuits 100 are disconnected, the adjacent area driving circuits 100 respectively and independently drive the corresponding display areas 500, and the corresponding display areas 500 can also realize simultaneous display.
In practical applications, at the boundary of the display area 500 corresponding to the adjacent area driving circuit 100, since the received data signal is farthest from the control unit outputting the data signal, the data signal is pulled low during the output process, so that the boundary of the adjacent display area 500 is darkest. Therefore, the adjacent area driving circuits 100 are generally used to drive the corresponding display areas 500 together, and the data signals at the boundary of the adjacent display areas 500 are pulled up to improve the display quality.
In some embodiments, referring to fig. 1 to 3, the plurality of scan signal lines 110 of adjacent area driving circuits 100 are arranged in a one-to-one correspondence. In practical applications, the plurality of scanning signal lines 110 are arranged in parallel at intervals, and in the adjacent area driving circuits 100, the scanning signal lines 110 are in one-to-one correspondence and are correspondingly connected with the first end and the second end of the first switching device 200.
In some embodiments, in each set of first switching devices 200, the control terminals of the first switching devices 200 are electrically connected to the same control signal line 300. The same control signal line 300 outputs the first level signal or the second level signal at the same time, and controls the on and off of the group of first switching devices 200 at the same time, so that the corresponding scanning signal lines 110 in the adjacent area driving circuits 100 can be electrically connected or disconnected at the same time, and the control precision is improved.
Alternatively, the first switching device 200 and the second switching device 120 are both Thin Film Transistors (TFTs); the control end of each switching device is a grid electrode of the thin film transistor, and if the first end of each switching device is a source electrode of the thin film transistor, the second end of each switching device is a drain electrode of the thin film transistor. And if the second end of each switching device is the source electrode of the thin film transistor, the first end of each switching device is the drain electrode of the thin film transistor.
Alternatively, if the first switching device 200 is an N-type TFT, the first level signal is at a low level, and the second level signal is at a high level; if the first switching device 200 is a P-type TFT, the first level signal is at a high level and the second level signal is at a low level.
It can be understood by those skilled in the art that when the first terminal and the second terminal of each transistor are N-type TFTs, P-type TFTs, or each switching device is a different electrode of a TFT, the electrical connection manner of each element in the pixel driving circuit provided in the embodiment of the present application can be adaptively adjusted, and the adaptively adjusted electrical connection manner still belongs to the protection scope of the embodiment of the present application.
Based on the same inventive concept, the present application also provides a display panel, which includes at least two display regions 500 and the panel driving circuit of any of the embodiments of the present application, as shown in fig. 2.
Each of the area driving circuits 100 corresponds to one of the display areas 500, and one of the area driving circuits 100 correspondingly controls the display or information of one of the display areas 500.
By applying the embodiment of the present application, when the adjacent display areas 500 are in the folded state, the first switching device 200 is controlled to be turned off, the scanning signal lines 110 of the adjacent area driving circuits 100 are turned off, and the adjacent area driving circuits 100 can independently drive the corresponding display areas 500, so that the display device can control the display areas 500 which need to display pictures to display, and the display areas 500 which do not need to display pictures are in the screen-rest state without electric signal input. According to the embodiment of the application, the application scenes of displaying 500 parts of the display area and displaying 500 screen half of the display area can be realized according to different application conditions, so that the power consumption of the foldable display panel is reduced.
In some embodiments, referring to fig. 2, the at least two display areas 500 include a first display area 501 and a second display area 502. Correspondingly, the at least two area driving circuits 100 include a first area driving circuit 101 and a second area driving circuit 102. The first display region 501 and the second display region 502 correspond to the first region driving circuit 101 and the second region driving circuit 102, respectively.
In the embodiment shown in fig. 2, the second switching devices 120 are not shown, and a group of the first switching devices 200 are spaced apart and disposed near a boundary between the first display region 501 and the second display region 502. In practical applications, the position of the first switching device 200 may be selected according to a specific process and a specific structure, and may be located at a boundary between the first display region 501 and the second display region 502, near a boundary between the first display region 501 and the second display region 502, or at other possible positions.
Based on the same inventive concept, an embodiment of the present application further provides a display device, including: the display panel of any embodiment of the present application.
In some embodiments, referring to fig. 2 and 3, the display device further includes: a first control unit 600. The first control unit 600 is electrically connected to the control signal line 300, and is configured to control the control signal line 300 of the control terminal of the group of first switching devices 200 corresponding to the adjacent display area 500 to output a first level signal when the adjacent display area 500 is in the folded state, and the group of first switching devices 200 is turned off, so that the adjacent area driving circuit 100 independently drives the corresponding display area 500; when the adjacent display regions 500 are in the unfolded state, the control signal line 300 controlling the control terminals of the group of first switching devices 200 corresponding to the adjacent display regions 500 outputs a second level signal, so that the adjacent region driving circuits 100 commonly drive the corresponding display regions 500.
Alternatively, the first control unit 600 is a driver IC (Integrated Circuit) chip of the display device.
As an alternative implementation manner, referring to fig. 3, an embodiment of the present application further provides a display apparatus, in the embodiment shown in fig. 3, components such as the first switching device 200, the control signal line 300, the second switching device 120, and the like are not shown, and a specific structural principle may refer to the structure of the display apparatus shown in fig. 2, where a dotted line is used to show a boundary between the first display area 501 and the second display area 502. The display area 500 of the display device includes: a first display area 501 and a second display area 502, which are a left screen and a right screen, respectively. Correspondingly, the first area driving circuit 101 and the second area driving circuit 102 respectively include a plurality of shift registers 130 and a plurality of scanning signal lines 110, and the plurality of scanning signal lines 110 are arranged in a direction perpendicular to a boundary between the first display area 501 and the second display area 502.
In the present embodiment, when only the first display region 501 is required to display an image, for example: when the dither flag in the figure is displayed, the first display area 501 and the second display area 502 are folded, the first control unit 600 detects that the first display area 501 and the second display area 502 are folded, and controls the control signal line 300 at the control end of the group of first switching devices 200 between the first area driving circuit 101 and the second area driving circuit 102 to output the first level signal, the group of first switching devices 200 is turned off, and the adjacent area driving circuits 100 can independently drive the corresponding display areas 500. The first control unit 600 or the driving IC of the display device controls the first region driving circuit 101 to drive the first display region 501 to display an image and controls the second display region 502 not to output an electric signal, so that the second display region 502 can be turned on.
In some embodiments, as another implementation, referring to fig. 4 and 5, the display device further includes: a bending sensor 700 and a second control unit 800.
The bending sensor 700 is at least partially disposed at a boundary of the adjacent display regions 500, and is configured to output a bending signal when the adjacent display regions 500 are bent such that the resistance of the bending sensor 700 reaches a preset resistance threshold.
The second control unit 800 is electrically connected to the control signal line 300 and the bending sensor 700, respectively, and is configured to control the control signal line 300 of the control end of the group of first switching devices 200 corresponding to the adjacent display area 500 to output a first level signal when the bending signal is acquired.
As an alternative implementation, referring to fig. 4, a display device is provided, in the embodiment shown in fig. 4, the area driving circuit 100, the first switching device 200, the control signal line 300, the second switching device 120, and other components are not shown, and the specific structural principle may refer to the structure of the display device shown in fig. 2. The display device includes: the first display area 501 and the second display area 502 are an upper screen and a lower screen, respectively, and the solid lines in the bending sensor 700 are only used to show the boundary between the first display area 501 and the second display area 502, and do not exist in the actual structure.
In the present embodiment, the bending sensor 700 is partially disposed at a boundary between the first display area 501 and the second display area 502, when the first display area 501 and the second display area 502 are folded, the length of the bending sensor 700 is increased, the resistance value is increased, and when the resistance value of the bending sensor 700 reaches a preset resistance value threshold, a bending signal is output.
As an implementation manner, the folding signal may be a level signal, and the second control unit 800 receives the folding signal, amplifies the signal, changes the signal into a first level signal, and outputs the first level signal to the control signal line 300.
As another implementation manner, after receiving the bending signal, the second control unit 800 determines that the first display area 501 and the second display area 502 are in the folded state, and outputs a first level signal to the control signal line 300.
Specifically, the second control unit 800 may be a driving IC chip of the display device.
In the embodiment shown in fig. 4, the plurality of scanning signal lines 110 are arranged in a direction parallel to the boundary between the first display region 501 and the second display region 502, and when the first display region 501 and the second display region 502 are in the folded state, the first switching device 200 is turned off, so that the first display region 501 and the second display region 502 are divided into two display portions, and the entire display region 500 is divided into four portions, thereby realizing display of one-fourth display screen.
Alternatively, when the first display area 501 and the second display area 502 are a left screen and a right screen, respectively, the bending sensor 700 is partially disposed at a boundary of the first display area 501 and the second display area 502. With reference to the embodiment shown in fig. 3, when the bending sensor 700 bends and the first display area 501 and the second display area 502 are in the folded state, the first display area 501 and the second display area 502 can be displayed separately.
As an alternative implementation, referring to fig. 5, a display device is provided, wherein two longitudinal sides of the bending sensor 700 extend to two longitudinal sides of the first display area 501 and the second display area 502, respectively. When the first display area 501 and the second display area 502 are in the folded state, the length of the bending sensor 700 is increased accordingly, the resistance value of the bending sensor 700 reaches the preset resistance value threshold, and a bending signal is output.
Based on the same inventive concept, an embodiment of the present application further provides a panel driving method, which is applied to the panel driving circuit of any embodiment of the present application or the display panel of any embodiment of the present application, and as shown in fig. 6, the panel driving method includes the following steps:
s601, when the adjacent display regions 500 are in the folded state, the control signal line 300 of the control terminal of the first switching device 200 in the group corresponding to the adjacent display region 500 is controlled to output the first level signal, and the first switching device 200 in the group is turned off, so that the adjacent region driving circuit 100 independently drives the corresponding display region 500.
In some embodiments, when the adjacent display regions 500 are in the folded state, the control signal line 300 controlling the control terminals of the group of first switching devices 200 corresponding to the adjacent display regions 500 outputs a first level signal, including:
when the bending signal of the bending sensor 700 is acquired, it is determined that the adjacent display area 500 is in a folded state; the bending sensor 700 is at least partially arranged at a boundary of the adjacent display areas 500, and outputs a bending signal when the adjacent display areas 500 are bent so that the resistance value of the bending sensor 700 reaches a preset resistance value threshold;
the control signal line 300 controlling the control terminals of a group of the first switching devices 200 corresponding to the adjacent display regions 500 outputs a first level signal.
S602, when the adjacent display areas 500 are in the unfolded state, the control signal line 300 of the control end of the first switching device 200 in the group corresponding to the adjacent display areas 500 is controlled to output the second level signal, so that the adjacent area driving circuits 100 drive the corresponding display areas 500 together.
As an optional implementation manner, an embodiment of the present application further provides a panel driving method, where the panel driving method includes the following steps:
when the bending signal of the bending sensor 700 is acquired, it is determined that the adjacent display regions 500 are in the folded state, the control signal line 300 of the control terminal of the group of first switching devices 200 corresponding to the adjacent display regions 500 is controlled to output a first level signal, and the group of first switching devices 200 is turned off, so that the adjacent region driving circuit 100 independently drives the corresponding display regions 500. Specifically, the bending sensor 700 is at least partially disposed at a boundary of the adjacent display areas 500, and outputs a bending signal when the adjacent display areas 500 are bent such that the resistance value of the bending sensor 700 reaches a preset resistance value threshold.
When the bending signal of the bending sensor 700 is not acquired and it is determined that the adjacent display regions 500 are in the folded state and in the unfolded state, the control signal line 300 controlling the control terminals of the group of first switching devices 200 corresponding to the adjacent display regions 500 outputs a second level signal, so that the adjacent region driving circuits 100 drive the corresponding display regions 500 together.
By applying the embodiment of the application, at least the following beneficial effects can be realized:
(1) in the embodiment of the present application, the control signal line 300 outputs the first level signal or the second level signal to the control terminal of the first switching device 200 to turn on and off the first switching device 200, so that the scanning signal lines 110 in the adjacent area driving circuits 100 are electrically connected and turned off, and the adjacent area driving circuits 100 can individually drive the corresponding display areas 500.
(2) The display device of the embodiment of the application can control the display area 500 which needs to display the picture to display, the display area 500 which does not need to display the picture has no electric signal input and is in the screen-off state, according to different application conditions, the display of the part of the display area 500 is realized, and the screen-off application scene of the part of the display area 500 is realized, so that the power consumption of the foldable display panel is reduced.
Those of skill in the art will appreciate that the various operations, methods, steps in the processes, acts, or solutions discussed in this application can be interchanged, modified, combined, or eliminated. Further, other steps, measures, or schemes in various operations, methods, or flows that have been discussed in this application can be alternated, altered, rearranged, broken down, combined, or deleted. Further, steps, measures, schemes in the prior art having various operations, methods, procedures disclosed in the present application may also be alternated, modified, rearranged, decomposed, combined, or deleted.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least a portion of the steps in the flow chart of the figure may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed alternately or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.
Claims (10)
1. A panel driving circuit, comprising: at least two area driving circuits and at least one set of first switching devices;
each of the area driving circuits includes a plurality of scanning signal lines;
a group of first switching devices are arranged between a plurality of scanning signal lines of the adjacent area driving circuits, and the first end and the second end of each first switching device are respectively and electrically connected with the output end of the corresponding scanning signal line in the adjacent area driving circuit;
in each group of the first switching devices, a control end of each first switching device is electrically connected with one control signal line, and is used for receiving a first level signal of the control signal line when the display area corresponding to the adjacent area driving circuit is in a folded state, and the group of the first switching devices is disconnected, so that the adjacent area driving circuits respectively and independently drive the corresponding display areas; when the display area corresponding to the adjacent area driving circuit is in an unfolded state, receiving a second level signal of a control signal line, and conducting the group of first switching devices;
each of the area driving circuits includes a plurality of shift registers and a plurality of second switching devices;
the input end and the output end of each scanning signal line are respectively and correspondingly electrically connected with the control ends of one shift register and one second switching device of the area driving circuit where the scanning signal line is located.
2. The panel driving circuit according to claim 1, wherein a plurality of scanning signal lines of adjacent area driving circuits are arranged in one-to-one correspondence.
3. The panel driving circuit according to claim 1, wherein in each group of the first switching devices, the control terminals of the first switching devices are electrically connected to a same control signal line.
4. A display panel comprising at least two display regions and the panel drive circuit according to any one of claims 1 to 3;
each of the area driving circuits corresponds to one of the display areas.
5. The display panel according to claim 4, wherein the at least two display regions include a first display region and a second display region;
the at least two area driving circuits comprise a first area driving circuit and a second area driving circuit;
the first display area and the second display area correspond to the first area driving circuit and the second area driving circuit, respectively;
a group of the first switching devices are arranged at intervals near the boundary of the first display area and the second display area.
6. A display device, comprising: the display panel of any one of claims 4-5.
7. The display device according to claim 6, further comprising:
the first control unit is electrically connected with the control signal line and is used for controlling the control signal line of the control end of a group of first switching devices corresponding to the adjacent display areas to output a first level signal when the adjacent display areas are in a folded state, and the group of first switching devices is disconnected, so that the adjacent area driving circuits independently drive the corresponding display areas; and when the adjacent display areas are in the unfolded state, the control signal lines of the control ends of the first switching devices corresponding to the adjacent display areas are controlled to output second level signals, so that the adjacent area driving circuits drive the corresponding display areas together.
8. The display device according to claim 6, further comprising:
the bending sensor is at least partially arranged at the boundary of the adjacent display areas and used for outputting a bending signal when the adjacent display areas are bent to enable the resistance value of the bending sensor to reach a preset resistance value threshold;
and the second control unit is electrically connected with the control signal line and the bending sensor and is used for controlling the control signal line of the control end of the group of first switching devices corresponding to the adjacent display areas to output a first level signal when the bending signal is acquired.
9. A panel driving method applied to the panel driving circuit according to any one of claims 1 to 3 or the display panel according to any one of claims 4 to 5, comprising:
when the adjacent display areas are in a folded state, the control signal lines of the control ends of a group of first switching devices corresponding to the adjacent display areas are controlled to output first level signals, and the group of first switching devices are switched off, so that the adjacent area driving circuits independently drive the corresponding display areas;
and when the adjacent display areas are in the unfolded state, the control signal lines of the control ends of the first switching devices corresponding to the adjacent display areas are controlled to output second level signals, so that the adjacent area driving circuits drive the corresponding display areas together.
10. The panel driving method according to claim 9, wherein the controlling signal line for controlling the control terminal of the first switching device in a group corresponding to the adjacent display region to output the first level signal when the adjacent display region is in the folded state comprises:
when a bending signal of a bending sensor is acquired, determining that adjacent display areas are in a folded state; the bending sensor is at least partially arranged at the boundary of the adjacent display areas, and when the adjacent display areas are bent to enable the resistance value of the bending sensor to reach a preset resistance value threshold value, a bending signal is output;
and controlling a control signal line of a group of control ends of the first switching devices corresponding to the adjacent display areas to output a first level signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010779107.6A CN111785208B (en) | 2020-08-05 | 2020-08-05 | Panel driving circuit, display panel, display device and panel driving method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010779107.6A CN111785208B (en) | 2020-08-05 | 2020-08-05 | Panel driving circuit, display panel, display device and panel driving method |
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| CN111785208A CN111785208A (en) | 2020-10-16 |
| CN111785208B true CN111785208B (en) | 2022-03-04 |
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| CN113393775A (en) * | 2021-05-28 | 2021-09-14 | 惠科股份有限公司 | Spliced display module, manufacturing method thereof and spliced display screen |
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| CN102436784A (en) * | 2010-08-13 | 2012-05-02 | 三星电子株式会社 | Flexible display apparatus and control method thereof |
| CN102654708A (en) * | 2011-08-03 | 2012-09-05 | 京东方科技集团股份有限公司 | Handwritten electronic paper display and manufacturing method thereof |
| CN104583911A (en) * | 2012-08-20 | 2015-04-29 | 三星电子株式会社 | Flexible display apparatus and controlling method thereof |
| CN106057855A (en) * | 2016-05-30 | 2016-10-26 | 武汉华星光电技术有限公司 | Foldable display device and driving method thereof |
| CN108877632A (en) * | 2018-07-26 | 2018-11-23 | 京东方科技集团股份有限公司 | A kind of gate driving circuit, array substrate, display panel and display device |
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| CN102436784A (en) * | 2010-08-13 | 2012-05-02 | 三星电子株式会社 | Flexible display apparatus and control method thereof |
| CN102654708A (en) * | 2011-08-03 | 2012-09-05 | 京东方科技集团股份有限公司 | Handwritten electronic paper display and manufacturing method thereof |
| CN104583911A (en) * | 2012-08-20 | 2015-04-29 | 三星电子株式会社 | Flexible display apparatus and controlling method thereof |
| CN106057855A (en) * | 2016-05-30 | 2016-10-26 | 武汉华星光电技术有限公司 | Foldable display device and driving method thereof |
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