CN111610673A - Display panel, display device and control method of display panel - Google Patents
Display panel, display device and control method of display panel Download PDFInfo
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- CN111610673A CN111610673A CN202010576495.8A CN202010576495A CN111610673A CN 111610673 A CN111610673 A CN 111610673A CN 202010576495 A CN202010576495 A CN 202010576495A CN 111610673 A CN111610673 A CN 111610673A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1345—Conductors connecting electrodes to cell terminals
- G02F1/13452—Conductors connecting driver circuitry and terminals of panels
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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
- G09G3/34—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 by control of light from an independent source
- G09G3/36—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 by control of light from an independent source using liquid crystals
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Abstract
The embodiment of the application provides a display panel, a display device and a control method of the display panel. The display panel includes: at least two regions, each region comprising a display region and a non-display region; at least one pair of first switching elements; the control unit comprises at least two control units, each control unit is arranged corresponding to one area, the first end and the second end of each first switch element are electrically connected with the control unit corresponding to the area, and the control end of each first switch element is electrically connected with a first control signal line; and the control unit is used for outputting a first level to the first end of the first switch element, receiving a second level output by the second end of the first switch element and outputting a fourth level to the first end of the second switch element of the corresponding display area. The embodiment of the application is used for solving the technical problem that the middle position of the display area of the adjacent area is split in the prior art.
Description
Technical Field
The present application relates to the field of display panel technology, and in particular, to a display panel, a display device, and a control method for a display panel.
Background
At present, in the LCD (Liquid Crystal Display) industry, the routing impedance and the like are considered, and due to the impedance difference between the middle and the two sides of the single Source chip Source IC, the level attenuation from the middle to the two sides occurs in sequence, which is expressed as the brightness gradient difference from the middle to the two sides under the same gray scale.
Meanwhile, in the multiple Source ICs, when the Source ICs are matched with each other due to a process problem, the output levels of the switching elements under the same gray scale are different, and it is not practical that the multiple ICs are wired and connected to each gray scale level in a Flexible Printed Circuit (FPC) synchronously.
Therefore, when multiple Source ICs are assembled, the display brightness difference of split screens caused by the overlarge output difference of each Source IC under the same gray scale is large, and particularly, the display brightness difference is caused by the difference of the output levels of the switching elements under the same gray scale in the display areas of the adjacent regions under the control of two different Source ICs, so that the problem of split screens at the middle positions of the display areas of the adjacent regions occurs.
Disclosure of Invention
The application provides a display panel, a display device and a control method of the display panel aiming at the defects of the prior art, and aims to solve the technical problem that screen splitting is performed at the middle position of the display area of adjacent areas in the prior art.
In a first aspect, an embodiment of the present application provides a display panel, including:
at least two regions, each region comprising a display region and a non-display region;
at least one pair of first switch elements, wherein each pair of first switch elements are respectively and correspondingly arranged in the non-display areas of the two adjacent areas;
the control unit comprises at least two control units, each control unit is arranged corresponding to one area, the first end and the second end of each first switch element are electrically connected with the control unit corresponding to the area, and the control end of each first switch element is electrically connected with a first control signal line;
the control unit is used for outputting a first level to the first end of the first switch element, receiving a second level output by the second end of the first switch element and outputting a fourth level to the first end of the second switch element of the corresponding display area; the fourth level is a sum of the first level and the third level, and the third level is a difference between the first level and the second level.
In one possible implementation, the control unit comprises at least one compensation circuit;
the first end, the second end, the third end and the fourth end of the compensation circuit are respectively and electrically connected with the third level output end, the first reference level end, the second reference level end and the first end of at least one second switching element;
a compensation circuit for outputting the received third level and the first level to a first terminal of the second switching element;
the control end and the second end of the second switch element are respectively and electrically connected with the second control signal line and the third switch element of the display area.
In one possible implementation, the control unit further comprises at least one voltage follower;
the first end and the second end of each voltage follower are respectively and electrically connected with the fourth end of the compensation circuit and the first end of one second switching element.
In one possible implementation, the control unit comprises three compensation circuits;
the first level comprises a first input level, a second input level and a third input level;
the second level comprises a first output level, a second output level and a third output level
The third level comprises a first difference level, a second difference level and a third difference level;
the difference level is the difference between the input level and the output level;
the first ends of the three compensation circuits are respectively and electrically connected with the first differential level end, the second differential level end and the third differential level end;
the first end of each second switch element is used for receiving one input level of the first input level, the second input level and the third input level and is electrically connected with the fourth end of the corresponding compensation circuit corresponding to the input level.
In one possible implementation, the control unit further includes:
the level acquisition module is electrically connected with the second end of the first switch element and used for receiving a second level;
the level storage module is used for storing a first level;
and the level comparison module is electrically connected with the level acquisition module and the level storage module and is used for receiving the first level and the second level to obtain a third level and correspondingly outputting the third level to the first end of the compensation circuit through a third level output end.
In one possible implementation, each pair of first switching elements is located on both sides of a separation line of the non-display area adjacent to the adjacent two areas, respectively; alternatively, the first and second electrodes may be,
each pair of first switching elements is located on both sides of a dividing line of the non-display area apart from the adjacent two areas, respectively.
In one possible implementation manner, in a pair of first switch elements, a first end and a second end of one first switch element are electrically connected to one control unit corresponding to the same area in two adjacent control units, and a first end and a second end of the other first switch element are electrically connected to the other control unit corresponding to the same area in two adjacent control units; alternatively, the first and second electrodes may be,
the first end of each first switch element is electrically connected with the control unit corresponding to the area to which the first switch element belongs, and the second end of each first switch element is electrically connected with the control unit of the adjacent area to which the adjacent first switch element belongs; and the control unit corresponding to the area to which the first switch element belongs is electrically connected with the control unit of the adjacent area.
In a second aspect, an embodiment of the present application further provides a display device, including: such as the display panel of the first aspect.
In a third aspect, an embodiment of the present application further provides a method for controlling a display panel, including the following steps:
outputting a first level to a first terminal of a first switching element, receiving a second level output from a second terminal of the first switching element;
outputting the fourth level to a first end of the second switching element of the corresponding display region; the fourth level is a sum of the first level and the third level, and the third level is a difference between the first level and the second level.
In one possible implementation, outputting the fourth level to the first end of the second switching element of the corresponding display region includes:
outputting the third level to a first end of a compensation circuit of the control unit;
the third level and the first level are output to the first terminal of the second switching element of the corresponding display region through the compensation circuit.
The technical scheme provided by the embodiment of the application has the following beneficial technical effects:
the display panel is divided into at least two areas, each area comprises a display area and a non-display area, and at least one pair of first switching devices is arranged in the non-display area. The first level is transmitted to the first end of the first switch device through the control unit, then the second level output by the second end of the first switch device is collected, the difference value between the first level and the second level is compared to obtain a third level, the third level and the first level are added to be used as a fourth level to be output to the first end of the second switch device of the display area, and the level compensation is completed.
According to the embodiment of the application, after the level signal output to the second switch device is reduced, the level signal for driving the light-emitting element to emit light is consistent with the target level signal through the compensation difference signal, gray scale compensation is completed, the brightness of the middle position of the display areas of the adjacent areas is not different, the problem that the display areas of the adjacent areas are divided into screens is solved, and the problem of poor screen division is solved.
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 display panel according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram illustrating a difference in level of a display panel according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of another display panel provided in the embodiment of the present application;
fig. 4 is a schematic structural diagram of another display panel provided in the embodiment of the present application;
fig. 5 is a block diagram of a control unit of a display panel according to an embodiment of the present disclosure;
fig. 6 is a schematic partial structural diagram of a control unit of a display panel according to an embodiment of the present disclosure;
fig. 7 is a schematic partial structural diagram of a control unit of another display panel according to an embodiment of the present disclosure;
fig. 8 is a timing diagram illustrating a control of a level of a display panel according to an embodiment of the present disclosure;
fig. 9 is a flowchart of a control method of a display panel according to an embodiment of the present disclosure.
Reference numerals:
10-region;
101-a display area;
102-a non-display area;
20-a first switching element;
30-a second switching element;
40-a control unit, 402-a level acquisition module, 403-a level storage module, 404-a level comparison module, 401-a compensation circuit and 405-a voltage follower;
50-a third switching element;
vr-complement (+/-) -first reference level terminal, GND-second reference level terminal.
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 display panel, as shown in fig. 1, 3, and 4, including: at least two zones 10, at least one pair of first switching elements 20 and at least two control units 40.
Each area 10 includes a display area 101 and a non-display area 102.
Each pair of first switching elements 20 is respectively disposed in the non-display area 102 of the two adjacent areas 10.
Each control unit 40 is disposed corresponding to the area 10, a first end and a second end of each first switch element 20 are electrically connected to the control unit 40 corresponding to the area 10, and a control end of the first switch element 20 is electrically connected to the first control signal line. The first switching element 20 indicates a level compensation function as a level test, and light emission of the display region 101 is on-driven by the second switching element 30. The losses of the levels of the first switching element 20 and the second switching element 30 are uniform.
The control unit 40 is configured to output a first level to a first end of the first switch element 20, receive a second level output by a second end of the first switch element 20, and output a fourth level to a first end of the second switch element 30 of the corresponding display area 101; the fourth level is a sum of the first level and the third level, and the third level is a difference between the first level and the second level.
The embodiment of the present application divides a region 10 of a display panel into at least two regions 10, each region 10 includes a display region 101 and a non-display region 102, and at least one pair of first switching elements 20 is disposed in the non-display region 102. The control unit 40 applies a first level to the first terminal of the first switching element 20, collects a second level output from the second terminal of the first switching element 20, compares a difference between the first level and the second level to obtain a third level, and adds the third level and the first level as a fourth level to be output to the first terminal of the second switching element 30 of the display area 101, thereby completing the compensation of the levels.
According to the embodiment of the application, after the level signal output to the second switch element 30 is reduced, the level signal for driving the light-emitting element to emit light is consistent with the target level signal by compensating the difference signal, so that the compensation of gray scale is completed, the brightness of the middle position of the display area 101 of the adjacent area 10 is not different, the problem of screen splitting of the display area 101 of the adjacent area 10 is avoided, and the problem of poor screen splitting is improved.
Referring to fig. 1, as an example, a vertical dotted line divides the display panel into two regions 10, and a horizontal dotted line divides each region 10 into a display region 101 and a non-display region 102. In the present embodiment, the display region 101 is located above the non-display region 102.
Referring to fig. 2, a graph of the difference of the levels of the display Panel is shown, the display brightness of the display Panel is based on the integrated brightness of the difference value between the output voltage of the source electrode of the positive frame and the output voltage of the source electrode of the negative frame and the voltage of the common electrode Vcom, the Master IC and the Slave IC of the primary integrated circuit are arranged by the same correction Gamma register, the theoretical voltage value of each gray scale is fixed to be 1 and 3, the theoretical voltage value is respectively the output deviation of the positive frame and the negative frame of the source electrode of the Master IC, and 2 and 4 are respectively the output deviation of the positive frame and the negative frame of the source electrode of. When a positive frame |1| ≠ 2| and a difference is large, a negative frame |3| ≠ 4| and a difference is large, the positive frame |1| ≠ |2| & the negative frame |3| ≠ 4|, differences are all consistent and large, and when the directions of 1 and 4 are consistent and the directions of 2 and 3 are consistent, intermediate split screen conditions of different degrees can occur.
In some embodiments, referring to fig. 3, in a pair of first switch elements 20, a first end and a second end of one first switch element 20 are electrically connected to one control unit 40 corresponding to the same area 10 in two adjacent control units 40, and a first end and a second end of the other first switch element 20 are electrically connected to the other control unit 40 corresponding to the same area 10 in two adjacent control units 40.
In some embodiments, referring to fig. 4, a first end of each first switch element 20 is electrically connected to the control unit 40 corresponding to the region 10 to which the first switch element 20 belongs, and a second end of each first switch element 20 is electrically connected to the control unit 40 of the adjacent region 10 to which the adjacent first switch element 20 belongs; the control unit 40 corresponding to the area 10 to which the first switching element 20 belongs is electrically connected to the control unit 40 of the adjacent area 10.
As an example, referring to fig. 3 and 4, the embodiment of the present application shows two regions 10, which include two Source ICs, that is, two control units 40, where the two control units 40 are a Master IC and a Slave IC, respectively, and the difference between the brightness of two sides of the output difference between the Master IC and the Slave IC at the same gray level may cause the screen split at the middle position.
Alternatively, as shown in fig. 3, the first and second ends of the first switching element 20 are directly electrically connected to the control unit 40 of the corresponding area. Referring to fig. 4, the first and second ends of the first switching element 20 are electrically connected to the control unit 40 of the corresponding area through the adjacent control unit 40. Specifically, Gate1, Gate, and Gate are Gate signal lines of the third switching element 50.
In some embodiments, referring to fig. 3 and 4, each pair of first switching elements 20 is respectively located at both sides of a separation line of the non-display area 102 adjacent to two adjacent areas 10.
In some embodiments, each pair of first switch elements 20 may also be located on two sides of the separation line of the non-display area 102 away from the adjacent two areas 10, respectively, and each pair of first switch elements 20 is away.
In some embodiments, referring to fig. 5, the control unit 40 further includes: a level acquisition module 402, a level storage module 403 and a level comparison module 404.
A level acquisition module 402 electrically connected to the second terminal of the first switch element 20 for receiving a second level;
a level storage module 403, configured to store a first level;
and the level comparing module 404 is electrically connected to the level acquiring module 402 and the level storing module 403, and is configured to receive the first level and the second level, obtain a third level, and correspondingly output the third level to the first end of the compensating circuit 401 through a third level output end.
In some embodiments, as shown in fig. 6 and 7, the control unit 40 includes at least one compensation circuit 401.
The first terminal, the second terminal, the third terminal and the fourth terminal of the compensation circuit 401 are electrically connected to the third level output terminal, the first reference level terminal Vr-complement (+/-), the second reference level terminal GND and the first terminal of the at least one second switching element 30, respectively. The third level output end is used for outputting a third level.
A compensation circuit 401 for outputting the received third level and the first level to the first terminal of the second switching element 30;
the control terminal and the second terminal of the second switching element 30 are electrically connected to the second control signal line and the third switching element 50 of the display region 101, respectively.
In some embodiments, referring to fig. 6 and 7, the control unit 40 further comprises at least one voltage follower 405;
a first terminal and a second terminal of each voltage follower 405 are electrically connected to the fourth terminal of the compensation circuit 401 and the first terminal of one second switching element 30, respectively.
In some embodiments, referring to fig. 7, the control unit 40 includes three compensation circuits 401;
the first level comprises a first input level, a second input level and a third input level;
the second level comprises a first output level, a second output level and a third output level
The third level comprises a first difference level, a second difference level and a third difference level;
the difference level is the difference between the input level and the output level. That is, the first difference level is a difference between the first input level and the first output level; the second difference level is the difference between the second input level and the second output level; the third difference level is a difference between the third input level and the third output level.
The first terminals of the three compensation circuits 401 are electrically connected to the first differential level terminal, the second differential level terminal, and the third differential level terminal, respectively.
A first terminal of each of the second switching elements 30 is configured to receive one of the first input level, the second input level and the third input level, and is electrically connected to a fourth terminal of the compensation circuit 401 corresponding to the input level.
As an example, referring to fig. 6 and 7, the third reference level terminal Vg-f (+/-) is a reference voltage of the resistor string of the correction Gamma register, the first reference level terminal Vr-complement (+/-) is a reference voltage of the compensation circuit 401, the second reference level terminal GND is a common reference potential, and Ar is a buffer of the reference voltage of the resistor string of the correction Gamma register. A1-An represents the level follower 405, which is the buffer unit of each gray level node, V0-V255 are the Source voltage of the actual gray level tie point, and the multi-way selection switch DAC is a register controlled one-out-of-many switch for selecting the level value of the node. All the reference voltages of the compensation circuit 401 are connected to Vr-complement (+/-).
As an example, referring to fig. 8 in conjunction with fig. 6, 7 and 8, Gate is a Gate voltage control signal of a pixel switch, MUX is a switch of a pixel source, an output of the source is divided into two time periods, namely a non-display area output region and an effective display output region, and when CK of the non-display area output region is kept at a low level and is not output, each CK controls a Gate of the pixel switch, so that the display panel does not emit light for display.
After a frame is turned on, the gray scale voltage set by the control unit 40 first, i.e. the first voltage, is captured and tested by the voltage acquisition unit after passing through the first switching element 20, and the voltage acquisition of the non-display area is divided into the following two cases:
in the first case, referring to the structure of the control unit 40 shown in fig. 6, only a single gray level is collected, the same gray level, for example, the L127 gray level, is output after the first switching element 20 in the non-display region is turned on each time, and the same gray level output difference is detected, as shown in the waveform portion of conditionan-Source shown in fig. 8.
In the second case, referring to the structure of the control unit 40 shown in fig. 7, several gray scales are collected, and different gray scales, such as the high gray scale L200 (e.g., L173 to L255), the intermediate gray scale L127 (e.g., L86 to L172), and the low gray scale L32 (e.g., L0 to L87), are output after the first switching element 20 in the non-display region is turned on, and the output difference of the different gray scales is detected, such as the condition b-Source waveform portion shown in fig. 8.
Optionally, the number of control bits of the picture is 8, and the number of realized gray scales is 28256, corresponding to gray levels L0 to L255, there are theoretically 256 standard voltages.
The level acquisition module 402 may acquire the level actually given to the pixel after passing through the first switching element 20, and by adding a pair of first switching elements 20 on the display panel, the idle output time of each control unit 40 is used, and the level is wired to the acquisition unit of the analog-digital converter ADC of the IC after passing through the first switching element 20, while storing the ADC value as S1 (binary storage).
Optionally, because the poor split-screen output occurs in the middle and low gray levels, and the deviation magnitude and direction of each gray level are substantially consistent, the control unit 40 may add an independent voltage reference source, such as a reference voltage digital quantity S, to be connected on a PCB (printed circuit Board) Board, so as to ensure that the voltage references of the control unit 40 are consistent, for example: MasterIC and slave ic. Optionally, the difference value (binary) between S1 and the reference source S is stored as D, the difference value D is converted into an analog quantity and input to an input terminal of a compensation circuit in the Gamma register tie, and the compensation circuit 401 includes two inputs, one is a tie first voltage input and the other is a difference value D input, so as to increase or decrease the output voltage of the difference value part through processing of an operation circuit, thereby forming an open loop control.
Alternatively, the Master IC and the Slave IC respectively calculate the difference, and respectively compensate and approach the reference voltage value, and the compensation method may be as follows: when the voltage difference of the single gray-scale source electrode is collected, all Gamma register binding points compensate the same difference value D1; acquiring the difference of high, medium and low gray levels, and using gray level binding point segmentation compensation, such as: the binding gray scales between L173 and L255 are all compensated by the same value D2 by taking an 8-Bit pixel of R/G/B as a standard, the binding gray scales between L86 and L172 are compensated by the same value D3, and the binding gray scales between L0 and L87 are all compensated by the same value D4.
Based on the same inventive concept, an embodiment of the present application further provides a display device, including: such as the display panel of the embodiments of the present application.
Based on the same inventive concept, an embodiment of the present application further provides a control method of a display panel, as shown in fig. 9, the control method of the display panel includes the following steps:
s901, outputs the first level to the first terminal of the first switching element 20, and receives the second level output from the second terminal of the first switching element 20.
S902, outputting the fourth level to the first end of the second switching element 30 of the corresponding display region 101; the fourth level is a sum of the first level and the third level, and the third level is a difference between the first level and the second level.
In some embodiments, outputting the fourth level to the first end of the second switching element 30 of the corresponding display region 101 includes:
outputting the third level to a first terminal of the compensation circuit 401 of the control unit 40;
the third level and the first level are output to the first terminal of the second switching element 30 of the corresponding display region 101 through the compensation circuit 401.
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.
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 display panel, comprising:
at least two regions, each of the regions comprising a display region and a non-display region;
at least one pair of first switch elements, wherein each pair of first switch elements is correspondingly arranged in the non-display area of two adjacent areas;
the control unit is arranged corresponding to the region, a first end and a second end of each first switch element are electrically connected with the control unit corresponding to the region, and a control end of each first switch element is electrically connected with a first control signal line;
the control unit is used for outputting a first level to a first end of the first switch element, receiving a second level output by a second end of the first switch element, and outputting a fourth level to a first end of a second switch element of a corresponding display area; the fourth level is a sum of the first level and a third level, and the third level is a difference between the first level and the second level.
2. The display panel according to claim 1, wherein the control unit comprises at least one compensation circuit;
the first end, the second end, the third end and the fourth end of the compensation circuit are respectively and electrically connected with a third level output end, a first reference level end, a second reference level end and a first end of at least one second switching element;
the compensation circuit is used for outputting the received third level and the first level to a first end of the second switching element;
and the control end and the second end of the second switch element are respectively and electrically connected with the second control signal line and the third switch element of the display area.
3. The display panel according to claim 2, wherein the control unit further comprises at least one voltage follower;
the first end and the second end of each voltage follower are respectively and electrically connected with the fourth end of the compensation circuit and the first end of one second switching element.
4. The display panel according to claim 2, wherein the control unit includes three compensation circuits;
the first level comprises a first input level, a second input level and a third input level;
the second level comprises a first output level, a second output level and a third output level
The third level comprises a first difference level, a second difference level, and a third difference level;
the difference level is the difference between the input level and the output level;
the first ends of the three compensation circuits are respectively and electrically connected with a first differential level end, a second differential level end and a third differential level end;
the first end of each second switch element is used for receiving one input level of a first input level, a second input level and a third input level and is electrically connected with the fourth end of the compensation circuit corresponding to the input level.
5. The display panel according to claim 2, wherein the control unit further comprises:
the level acquisition module is electrically connected with the second end of the first switch element and used for receiving the second level;
the level storage module is used for storing the first level;
and the level comparison module is electrically connected with the level acquisition module and the level storage module and is used for receiving the first level and the second level to obtain a third level and correspondingly outputting the third level to the first end of the compensation circuit through a third level output end.
6. The display panel according to claim 1, wherein each pair of the first switching elements is located on both sides of a separation line of a non-display area adjacent to two adjacent areas, respectively; alternatively, the first and second electrodes may be,
each pair of the first switching elements is located on both sides of a separation line of a non-display area apart from the adjacent two of the areas.
7. The display panel according to claim 1, wherein a first end and a second end of one of the first switching elements in a pair of the first switching elements are electrically connected to one of the control units corresponding to a same one of the regions in two adjacent control units, and a first end and a second end of the other of the first switching elements are electrically connected to the other of the control units corresponding to a same one of the regions in two adjacent control units; alternatively, the first and second electrodes may be,
the first end of each first switch element is electrically connected with the control unit corresponding to the area to which the first switch element belongs, and the second end of each first switch element is electrically connected with the control unit of the adjacent area to which the adjacent first switch element belongs; and the control unit corresponding to the area to which the first switch element belongs is electrically connected with the control unit of the adjacent area.
8. A display device, comprising: the display panel of any one of claims 1-7.
9. A control method of a display panel is characterized by comprising the following steps:
outputting a first level to a first terminal of a first switching element, receiving a second level output from a second terminal of the first switching element;
outputting the fourth level to a first end of the second switching element of the corresponding display region; the fourth level is a sum of the first level and a third level, and the third level is a difference between the first level and the second level.
10. The method of claim 9, wherein outputting the fourth level to the first end of the second switching element of the corresponding display region comprises:
outputting a third level to a first end of a compensation circuit of the control unit;
and outputting the third level and the first level to a first end of a second switching element of a corresponding display area through the compensation circuit.
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