CN114677985B - Compensation adjustment method based on display panel, display panel and display device - Google Patents
Compensation adjustment method based on display panel, display panel and display device Download PDFInfo
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- CN114677985B CN114677985B CN202210388322.2A CN202210388322A CN114677985B CN 114677985 B CN114677985 B CN 114677985B CN 202210388322 A CN202210388322 A CN 202210388322A CN 114677985 B CN114677985 B CN 114677985B
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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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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0209—Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
Abstract
The invention discloses a compensation adjustment method based on a display panel, the display panel and a display device, wherein the display panel comprises a near-end compensation wiring, a near-end feedback wiring and a compensation adjustment circuit, wherein: the near-end feedback wiring sends a near-end feedback signal to the compensation adjustment circuit; the compensation adjustment circuit receives the near-end feedback signal and performs near-end compensation adjustment on the near-end feedback signal to obtain a near-end compensation signal; the near-end compensation wiring transmits the near-end compensation signal so as to drive the display panel to display through the near-end compensation signal. The invention can solve the technical problems of bad crosstalk, influence on the display effect of the display panel and the like in the prior display panel adopting a far-end compensation scheme.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a compensation adjustment method based on a display panel, and a display device.
Background
With the development of liquid crystal display technology, a liquid crystal display panel has become an important display tool. For example, thin film transistor liquid crystal display panels (Thin Film Transistor-Liquid Crystal Display, TFT-LCDs) are currently in wide use in the market due to their wide viewing angle, high refresh rate, and thin size. However, the TFT-LCD display panel may have poor crosstalk (crosstalk) due to a production process or long-term use, and may affect the display effect of the display panel. Therefore, it is necessary to compensate for the luminance unevenness of the display panel.
In the prior art, in the compensation scheme for the display panel, a remote driving signal of the display panel is generally selected as a feedback signal, the feedback signal is compensated by a certain amplification factor, and finally the display panel is driven by using the compensated remote signal. However, in practice, it is found that the compensation and recovery time of the far-end signal is too long, and the problems of bad crosstalk and the like cannot be repaired by compensating and adjusting through the amplification factor, which also affects the display effect of the display panel and affects the user experience.
Disclosure of Invention
The embodiment of the invention solves the technical problems of poor crosstalk, influence on the display effect of the display panel and the like existing in the existing display panel adopting a far-end compensation scheme by providing the compensation adjustment method based on the display panel, the display panel and the display device.
In a first aspect, an embodiment of the present invention provides a display panel, including: the near-end compensation wiring, near-end feedback wiring and compensation adjustment circuit, near-end compensation wiring with near-end feedback wiring all with the compensation adjustment circuit is connected, wherein:
the near-end feedback wiring transmits a near-end feedback signal to the compensation adjustment circuit, wherein the near-end feedback signal is a signal transmitted by a driving interface closest to the compensation adjustment circuit in the display panel;
The compensation adjustment circuit receives the near-end feedback signal and performs near-end compensation adjustment on the near-end feedback signal to obtain a near-end compensation signal;
the near-end compensation wiring transmits the near-end compensation signal so as to drive the display panel to display through the near-end compensation signal.
Optionally, the display panel further includes: the far-end compensation wiring and/or the middle-end compensation wiring are/is connected with the compensation adjustment circuit, wherein:
the compensation adjustment circuit carries out far-end compensation adjustment on the near-end feedback signal to obtain a far-end compensation signal, and/or carries out middle-end compensation adjustment on the near-end feedback signal to obtain a middle-end compensation signal;
the far-end compensation wiring transmits the far-end compensation signal so as to drive the display panel to display through the far-end compensation signal;
the middle-end compensation wiring transmits the middle-end compensation signal so as to drive the display panel to display through the middle-end compensation signal;
the distance between the driving interface connected with the far-end compensation wiring, the middle-end compensation wiring and the near-end compensation wiring in the display panel and the compensation adjusting circuit is sequentially reduced.
Optionally, the display panel includes the remote compensation wire and a grid array, and the remote compensation wire is disposed inside the grid array.
Optionally, the near-end feedback trace is disposed on a first side of the display panel or a second side adjacent to the first side, wherein the first side is a side of the display panel closest to the compensation adjustment circuit.
Optionally, the compensation adjustment circuit comprises a near-end inverting amplification circuit, wherein:
and the near-end reverse amplification circuit performs near-end reverse amplification on the near-end feedback signal according to a preset near-end amplification coefficient to obtain the near-end compensation signal.
Optionally, the near-end reverse amplification circuit includes a near-end input resistor, a near-end operational amplifier and a near-end reverse resistor, the near-end feedback trace is connected with the input end of the near-end operational amplifier through the near-end input resistor, two ends of the near-end reverse resistor are respectively connected with the input end of the near-end operational amplifier and the output end of the near-end operational amplifier, and the output end of the near-end operational amplifier is also connected with the near-end compensation trace.
Optionally, the proximal amplification factor is determined from the proximal input resistance and the proximal inverse resistance.
Optionally, the compensation adjustment circuit includes a mid-end time adjustment circuit and a mid-end inverting amplification circuit, wherein:
the middle-end time adjustment circuit performs middle-end time compensation on the near-end feedback signal according to a preset middle-end time coefficient to obtain a middle-end time signal;
and the middle-end reverse amplification circuit performs middle-end reverse amplification on the middle-end time signal according to a preset middle-end amplification coefficient to obtain the middle-end compensation signal.
Optionally, the middle-end time adjustment circuit includes a middle-end adjustment resistor and a middle-end capacitor, the middle-end reverse amplification circuit includes a middle-end input resistor, a middle-end operational amplifier and a middle-end reverse resistor, the near-end feedback trace is connected with one end of the middle-end capacitor and one end of the middle-end input resistor respectively through the middle-end adjustment resistor, the other end of the middle-end capacitor is connected with ground, the other end of the middle-end input resistor is connected with the input end of the middle-end operational amplifier and one end of the middle-end reverse resistor respectively, and the output end of the middle-end operational amplifier is connected with the other end of the middle-end reverse resistor and the middle-end compensation trace respectively.
Optionally, the middle-end time coefficient is determined according to the middle-end adjusting resistor and the middle-end capacitor, and the middle-end amplifying coefficient is determined according to the middle-end input resistor and the middle-end reverse resistor.
Optionally, the compensation adjustment circuit includes a far-end time adjustment circuit and a far-end inverting amplification circuit, wherein:
the far-end time adjustment circuit performs far-end time compensation on the near-end feedback signal according to a preset far-end time coefficient to obtain a far-end time signal;
and the far-end reverse amplifying circuit carries out far-end reverse amplification on the far-end time signal according to a preset far-end amplifying coefficient to obtain the far-end compensation signal.
Optionally, the remote time adjustment circuit includes a remote adjustment resistor and a remote capacitor, the remote reverse amplification circuit includes a remote input resistor, a remote operational amplifier and a remote reverse resistor, the proximal feedback trace is connected with one end of the remote capacitor and one end of the remote input resistor respectively through the remote adjustment resistor, the other end of the remote capacitor is connected with ground, the other end of the remote input resistor is connected with the input end of the remote operational amplifier and one end of the remote reverse resistor respectively, and the output end of the remote operational amplifier is connected with the other end of the remote reverse resistor and the remote compensation trace respectively.
Optionally, the distal time coefficient is determined according to the distal adjustment resistance and the distal capacitance, and the distal amplification coefficient is determined according to the distal input resistance and the distal inverse resistance.
In a second aspect, an embodiment of the present invention provides a compensation adjustment method based on a display panel, where the display panel includes a near-end compensation wire, a near-end feedback wire, and a compensation adjustment circuit connected to both the near-end compensation wire and the near-end feedback wire, the method includes:
the signal transmitted by the near-end feedback wiring is used as a near-end feedback signal, and the near-end feedback signal is a signal which is sent out by a driving interface which is connected with the near-end feedback wiring in the display panel and is nearest to the compensation adjustment circuit;
performing near-end compensation adjustment on the near-end feedback signal by using the compensation adjustment circuit to obtain a near-end compensation signal;
and transmitting the near-end compensation signal by using the near-end compensation wiring so as to drive the display panel to display by the near-end compensation signal.
The descriptions or details not described in the embodiments of the present invention may be referred to the related descriptions in the foregoing embodiments of the display panel, which are not repeated herein.
In a third aspect, embodiments of the present invention provide a display device comprising a display panel as described in the first aspect or any of the alternative embodiments thereof.
One or more technical solutions provided in the embodiments of the present invention at least have the following technical effects or advantages: the present invention provides a display panel, comprising: the near-end compensation wiring, near-end feedback wiring and compensation adjustment circuit, near-end compensation wiring with near-end feedback wiring all with the compensation adjustment circuit is connected, wherein: the near-end feedback wiring transmits a near-end feedback signal to the compensation adjustment circuit, wherein the near-end feedback signal is a signal transmitted by a driving interface closest to the compensation adjustment circuit in the display panel; the compensation adjustment circuit receives the near-end feedback signal and performs near-end compensation adjustment on the near-end feedback signal to obtain a near-end compensation signal; the near-end compensation wiring transmits the near-end compensation signal so as to drive the display panel to display through the near-end compensation signal. In the scheme, the near-end driving signal transmitted by the near-end feedback wiring is used as the feedback signal, the feedback signal is further compensated and adjusted to obtain the near-end compensation signal, and finally the near-end compensation signal is used for driving and displaying the display panel, so that the convenience and the high efficiency of the compensation and adjustment of the display panel are realized, and compared with the prior art, the invention uses the near-end feedback signal for compensation and adjustment, and shortens the compensation and recovery time of the display panel. In addition, the invention also solves the technical problems of bad crosstalk, influence on the display effect of the display panel and the like existing in the prior display panel adopting the far-end compensation scheme.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a peripheral wiring of a display panel according to the prior art.
Fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the invention.
Fig. 3 and 4 are schematic layout diagrams of two near-end feedback traces according to an embodiment of the invention.
Fig. 5 is a schematic structural diagram of another display panel according to an embodiment of the invention.
Fig. 6 is a schematic structural diagram of a compensation adjustment circuit according to an embodiment of the invention.
Fig. 7 is a schematic waveform diagram of pulse excitation according to an embodiment of the present invention.
Fig. 8 is a schematic diagram illustrating a comparison of signal simulation according to an embodiment of the present invention.
Fig. 9 is a flowchart of a compensation adjustment method based on a display panel according to an embodiment of the present invention.
Detailed Description
The inventors have also found in the course of the present invention that: due to the common electrode network in the display panel, overlapping with the data wiring of the vertical wiring, C is formed DC And a coupling capacitor. The jump signal transmitted on the data wire is transmitted through C DC The coupling capacitor is coupled to a driving signal (Vcom signal) of the display panel, so that the driving signal may be distorted, thereby causing bad problems such as crosstalk and ghost.
Fig. 1 is a schematic diagram of a peripheral wiring of a display panel according to the prior art. As shown in fig. 1, peripheral wiring regions 20 are present around the display region 10 of the display panel, and the peripheral wiring regions 20 are shown on the left side of the display region 10 by way of example, but are not limited thereto. The peripheral wiring area is referenced to the direction of approaching the display area (i.e. from the periphery to the inside of the display), and is sequentially provided with: a far-end compensation wire 101, a far-end feedback wire (FB) 102, a Clock (CLK) wire 103, a Gate On Array (GOA) 104, a middle-end compensation wire 105, and a near-end compensation wire 106. Because corresponding coupling capacitors are formed between the signal lines in the peripheral wiring area, specifically, for example, the distance between the far-end compensation wire 101 and the near-end feedback wire 102 is relatively short, the coupling effect between the far-end compensation wire 101 and the near-end feedback wire 102 is relatively large, and clock signals transmitted on the clock wire 103 along the transitions between the upper edge and the lower edge are coupled to the signals transmitted on the compensation wires through the coupling capacitors, so that the signals are distorted, and bad problems such as crosstalk, ghost and the like of the display panel are easily caused.
In the existing compensation scheme of the display panel for the driving signals, the far-end driving signals are usually selected as feedback signals, and the far-end driving signals, the middle-end driving signals and the near-end driving signals of the display panel are compensated by adjusting different amplification factors. However, in practice it has been found that the distortion recovery times of the respective drive signals at the far, intermediate and near ends are different, and if compensation adjustments are made using either the far or intermediate drive signals, this can result in mismatch of the distortion recovery times of the respective drive signals, which is not effective either by modifying the amplification or by replacing the feedback signal. And moreover, the compensation and adjustment are carried out only through the amplification factor, so that the adverse problems such as crosstalk, ghost and the like cannot be repaired, and even distortion signals can be introduced, namely, the distortion of the signals at each end after compensation is more serious than that before uncompensation.
In order to solve the above problems, the embodiments of the present invention provide a compensation adjustment method based on a display panel, a display panel and a display device, where the overall concept is as follows:
the present invention provides a display panel, comprising: the near-end compensation wiring, near-end feedback wiring and compensation adjustment circuit, near-end compensation wiring with near-end feedback wiring all with the compensation adjustment circuit is connected, wherein: the near-end feedback wiring transmits a near-end feedback signal to the compensation adjustment circuit, wherein the near-end feedback signal is a signal transmitted by a driving interface closest to the compensation adjustment circuit in the display panel; the compensation adjustment circuit receives the near-end feedback signal and performs near-end compensation adjustment on the near-end feedback signal to obtain a near-end compensation signal; the near-end compensation wiring transmits the near-end compensation signal so as to drive the display panel to display through the near-end compensation signal.
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
First, the term "and/or" appearing herein is merely an association relationship describing associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone.
Fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the invention. The display panel 2 as shown in fig. 2 includes: a display area 10 and a peripheral wiring area 20, the peripheral wiring area 20 being located around the display area 10, for example, the peripheral wiring area 20 may be located above, below, on the left and right sides of the display area 10, and the like. A plurality of circuit traces for controlling or driving the display of the display panel 2 (specifically, the display area 10) are disposed in the peripheral wiring area 20, for example, a near-end compensation trace 201, a near-end feedback trace 202 and a compensation adjustment circuit 203 are disposed in the peripheral wiring area 20 in the present invention. Optionally, the peripheral wiring area 20 is further provided with a far-end compensating wire 204 and/or a middle-end compensating wire 205, which are illustrated as an example, but not a limitation, in which the middle-end compensating wire 204 and the far-end compensating wire 205 are provided in the peripheral wiring area 20.
Wherein the near-end compensation wire 201, the near-end feedback wire 202, the middle-end compensation wire 204 and the far-end compensation wire 205 are respectively connected with the compensation adjustment circuit 203 and the display area 10. Specifically, as shown in the figure, the driving interface connected to the near-end compensation trace 201 and the display area 10 is called a near-end interface 101, which is used for transmitting a near-end compensation signal for driving the display area 10 to display. The near-end feedback trace 202 is coupled to a drive interface, referred to as feedback interface 102, in the display area 10 for transmitting a near-end feedback signal for adjusting the display of the display area 10. The driving interface between the middle compensation wire 204 and the display area 10 is called the middle interface 104, and is used for transmitting a middle compensation signal for adjusting the display of the display area 10. The remote compensation wire 205 is connected to a driving interface, called the remote interface 105, in the display area 10 for transmitting a remote compensation signal for adjusting the display of the display area 10.
And, the distances between the far-end interface 105, the middle-end interface 104 and the near-end interface 101 and the compensation adjustment circuit 203 are sequentially reduced, namely, the distance between the far-end interface 105 and the compensation adjustment circuit 203 is farthest, the distance between the middle-end interface 104 and the compensation adjustment circuit 203 is next to the distance between the near-end interface 101 and the compensation adjustment circuit 203 is nearest. That is, the distances between the driving interface to which the far-end compensation wire 205, the middle-end compensation wire 204, and the near-end compensation wire 201 are each connected in the display panel 2 and the compensation adjustment circuit 203 decrease sequentially. The location and number of the distal interface 105, the middle interface 104, and the proximal interface 101 are not limited in this disclosure, and may be one or more. Accordingly, the number of the distal compensation wires 205, the middle compensation wires 204, and the proximal compensation wires 201 according to the present invention may be one or more, which may be set according to the actual requirements of the panel, and the present invention is not limited thereto.
In practical applications, the near-end feedback trace 202 and the near-end compensation trace 201 may be the same, and they are both traces connected to the driving interface (i.e., the near-end interface 101) closest to the compensation adjustment circuit 203 in the display panel 2. Specifically, any of the proximal interfaces 101 may be selected as the feedback interface 102 for arranging or connecting the proximal feedback trace 202. The distal feedback trace 202 is configured to use the proximal driving signal transmitted by the proximal interface 101 as the proximal feedback signal transmitted by the distal feedback trace 202 for subsequent signal processing.
The invention is not limited with respect to the specific selection of the feedback interface 102. For example, please refer to fig. 3 and fig. 4, which are schematic diagrams illustrating the layout of two possible near-end feedback traces according to an embodiment of the present invention. As shown in fig. 3, the present invention may select the proximal interfaces 101 located on the left and right sides of the display area 10 as the feedback interfaces 102, and arrange the proximal feedback wires 202 for connecting the feedback interfaces 102. As shown in fig. 4, the present invention may select the proximal interface 101 located at the middle position just below the display area 10 as the feedback interface 102, and arrange a proximal feedback trace 202 for connecting the feedback interface 102.
Accordingly, the proximal feedback trace 202 corresponds to the feedback interface 102, and in particular, the proximal feedback trace 202 may be disposed on a first side of the display panel 2 or on a second side adjacent to the first side. The first side is specifically the side of the display panel 2 closest to the compensation adjustment circuit 203, i.e. the side of the display panel 2 where the proximal port 101 is located.
It should be noted that, regarding the above-mentioned near-end compensation trace 201, near-end feedback trace 202, middle-end compensation trace 204 and far-end compensation trace 205, the specific wiring positions and wiring manners of these traces in the peripheral wiring region 20 are not limited by the present invention. Specifically, as shown in fig. 2, the present invention may be sequentially set according to a reference direction corresponding from the periphery to the inside of the display area: the distal compensation track 204, the middle compensation track 205, the proximal compensation track 201, and the proximal feedback track 202 are shown by way of example only and not by way of limitation. Optionally, the proximal feedback trace 202 may also be disposed at a position between the middle compensating trace 205 and the proximal compensating trace 201, and the invention is not limited thereto. The present invention is not limited to the wiring position of the compensation adjustment circuit 203, and for example, the compensation adjustment circuit 203 may be disposed above or below the display area 10, and fig. 2 illustrates that the compensation adjustment circuit 203 is disposed directly below the display area 10, but is not limited thereto.
In an alternative embodiment, please refer to fig. 5 together, which is a schematic diagram of another possible display panel according to an embodiment of the present invention. As shown in the display panel 2 of fig. 5, the peripheral wiring region 20 may further include a grid array 206, and the remote compensation wiring 204 is disposed inside the grid array 206. Namely, the far-end compensating trace 204, the middle-end compensating trace 205, the near-end compensating trace 201 and the near-end feedback trace 202 according to the present invention are disposed inside the grid array 206, that is, between the grid array 206 and the display area 10. The invention arranges the far-end compensation wiring 204 inside the gate array GOA, and cancels the far-end feedback wiring, thus eliminating the interference of clock signals transmitted by the clock wiring on signals (such as far-end driving signals, middle-end driving signals and near-end driving signals) on other wirings, and avoiding the problem of poor crosstalk of the display panel.
The following describes functions of each trace and circuit according to the embodiment of the present invention. Specifically:
the near-end feedback trace 202 is configured to send a near-end feedback signal to the compensation adjustment circuit 203. The near-end feedback signal is a near-end driving signal sent by a driving interface (i.e., the near-end interface 101) which is connected to the near-end feedback trace 202 in the display panel 2 and is closest to the compensation adjustment circuit 203. Specifically, the near-end feedback trace 202 sends a near-end driving signal as a feedback signal to the compensation adjustment circuit 203 for processing through the feedback interface 102.
The compensation adjustment circuit 203 is configured to receive the near-end feedback signal, and perform near-end compensation adjustment on the near-end feedback signal to obtain a corresponding near-end compensation signal. Wherein, the specific embodiment of the near-end compensation adjustment will be described in detail below.
The near-end compensation wiring 201 is configured to transmit the near-end compensation signal, so as to drive the display panel 2 to display through the near-end compensation signal. Specifically, the near-end compensation wire 201 transmits the near-end compensation signal to the display area 10 of the display panel 2 through the near-end interface 101 connected thereto, so as to drive the display area 10 to display.
The present invention is not limited to the specific embodiment of the near-end compensation adjustment, and specifically, for example, the compensation adjustment circuit 203 includes a near-end reverse amplification circuit 300 (may also be referred to as a near-end reverse amplification adjustment circuit), and the near-end reverse amplification circuit 300 performs near-end reverse amplification on the near-end feedback signal according to a preset near-end amplification coefficient to obtain the near-end compensation signal. The near-end amplification factor is set by a system or a user in a self-defined manner, for example, according to actual requirements of a panel. The circuit implementation of the near-end inverting amplifier circuit 300 is not limited by the present invention.
For example, please refer to fig. 6, which is a schematic diagram illustrating a structure of a compensation adjustment circuit 203 according to an embodiment of the invention. In the compensation adjustment circuit shown in fig. 6, the near-end inverting amplifier circuit 300 may include a near-end operational amplifier 301, a near-end input resistor 302, and a near-end inverting resistor 303. The near-end feedback trace 202 (may also be the feedback interface 102) is connected to one input end of the near-end operational amplifier 301 through the near-end input resistor 302, two ends of the near-end reverse resistor 303 are respectively connected to the input end of the near-end operational amplifier 301 and the output end of the near-end operational amplifier 301, and the output end of the near-end operational amplifier 301 is also connected to the near-end compensation trace 201 (may also be the near-end interface 101).
In this embodiment, the proximal amplification factor is determined according to the proximal input resistor 302 and the proximal counter resistor 303, and specifically, for example, the proximal amplification factor may be a ratio between the proximal counter resistor 303 and the proximal input resistor 302. If the resistance value of the near-end reverse resistor 303 is R 303 The resistance value of the near-end input resistor 302 is R 302 The near-end magnification alpha Near-to-near ＝R 303 /R 302 。
In some alternative embodiments, the compensation adjustment circuit 203 is further configured to perform a mid-end compensation adjustment on the near-end feedback signal to obtain a corresponding mid-end compensation signal. Wherein, the specific implementation of the middle-end compensation adjustment is described in detail below.
Correspondingly, the middle-end compensation wiring 204 is configured to transmit the middle-end compensation signal, so as to drive the display screen 2 to display through the middle-end compensation signal. Specifically, the mid-end compensation wire 204 transmits the mid-end compensation signal to the display area 10 of the display panel 2 through the mid-end interface 104 connected thereto, so as to drive the display area 10 to display.
The present invention is not limited to the specific embodiment of the mid-side compensation adjustment, and specifically, for example, the compensation adjustment circuit 203 includes a mid-side time adjustment circuit 310 and a mid-side inverting amplification circuit 320, which may also be referred to as a mid-side recovery time adjustment circuit and a mid-side inverting amplification adjustment circuit, respectively. Wherein:
the middle-end time adjustment circuit 310 is configured to perform middle-end time compensation on the near-end feedback signal according to a preset middle-end time coefficient, so as to obtain a corresponding middle-end time signal;
The middle-end reverse amplifying circuit 320 is configured to perform middle-end reverse amplification on the middle-end time signal according to a preset middle-end amplification coefficient, so as to obtain the middle-end compensation signal. The middle-end time coefficient and the middle-end amplification coefficient are both coefficients set by a system or a user in a self-defining way. The circuit implementation of each of the middle-end time adjustment circuit 310 and the middle-end inverting amplification circuit 320 is not limited in the present invention.
For example, in the compensation adjustment circuit shown in fig. 6, the middle-end time adjustment circuit 310 may include a middle-end adjustment resistor 311 and a middle-end capacitor 312, and the middle-end inverting amplification circuit 320 includes a middle-end operational amplifier 321, a middle-end input resistor 322 and a middle-end inverting resistor 323. The near-end feedback trace 202 (may also be the feedback interface 102) is connected to one end of the middle-end capacitor 312 and one end of the middle-end input resistor 322 through the middle-end adjusting resistor 311, the other end of the middle-end capacitor 312 is connected to the ground, the other end of the middle-end input resistor 322 is connected to the input end of the middle-end operational amplifier 321 and one end of the middle-end inverting resistor 323, and the output end of the middle-end operational amplifier 321 is connected to the other end of the middle-end inverting resistor 323 and the middle-end compensating trace 204 (may also be the middle-end interface 104).
In the present embodiment, the middle-end time coefficient is determined according to the middle-end adjusting resistor 311 and the middle-end capacitor 312, specifically, for example, the middle-end time coefficient may be the middle-endThe product of the resistor 311 and the mid-end capacitor 312 is adjusted. If the resistance value of the middle-end adjusting resistor 311 is R In (a) The capacitance value of the middle-end capacitor 312 is C In (a) The medium-end time coefficient tau In (a) ＝R In (a) C In (a) 。
The middle-end amplification factor is determined according to the middle-end input resistor 322 and the middle-end reverse resistor 323, and specifically, for example, the middle-end amplification factor may be a ratio of the middle-end reverse resistor 323 to the middle-end input resistor 322. If the resistance of the middle-end input resistor 322 is R 322 The resistance value of the middle-end reverse resistor 323 is R 323 The middle-end amplification factor alpha In (a) ＝R 323 /R 322 。
In some alternative embodiments, the compensation adjustment circuit 203 is further configured to perform a distal compensation adjustment on the proximal feedback signal to obtain a corresponding distal compensation signal. Wherein, the specific implementation of the remote compensation adjustment is described in detail below.
Correspondingly, the far-end compensation wiring 205 is configured to transmit the far-end compensation signal, so as to drive the display screen 2 to display through the far-end compensation signal. Specifically, the remote compensation wire 205 transmits the remote compensation signal to the display area 10 of the display panel 2 through the remote interface 105 connected thereto, so as to drive the display area 10 to display.
The present invention is not limited to the specific embodiment of the remote compensation adjustment, and specifically, for example, the compensation adjustment circuit 203 includes a remote time adjustment circuit 330 and a remote reverse amplification circuit 340, which may also be referred to as a remote recovery time adjustment circuit and a remote reverse amplification adjustment circuit, respectively. Wherein:
the remote time adjustment circuit is used for performing remote time compensation on the near-end feedback signal according to a preset remote time coefficient so as to obtain a corresponding remote time signal;
the remote reverse amplification circuit is used for conducting remote reverse amplification on the remote time signal according to a preset remote amplification coefficient to obtain the remote compensation signal. The remote time coefficient and the remote amplification coefficient are both coefficients set by a system or a user in a self-defining way. The circuit implementation of each of the remote time adjustment circuit 330 and the remote inverting amplifier circuit 340 is not limited in this invention.
For example, in the compensation adjustment circuit shown in fig. 6, the remote time adjustment circuit 330 may include a remote adjustment resistor 331 and a remote capacitor 332, and the remote inverting amplifier circuit 340 may include a remote operational amplifier 341, a remote input resistor 342, and a remote inverting resistor 343. The near-end feedback trace 202 (may also be the feedback interface 102) is connected to one end of the far-end capacitor 332 and one end of the far-end input resistor 342 through the far-end adjusting resistor 331, the other end of the far-end capacitor 332 is connected to the ground, the other end of the far-end input resistor 342 is connected to one input end of the far-end operational amplifier 341 and one end of the far-end reverse resistor 343, and the output end of the far-end operational amplifier 341 is connected to the other end of the far-end reverse resistor 343 and the far-end compensating trace 205 (may also be the far-end interface 105).
In this embodiment, the distal time coefficient is determined according to the distal adjustment resistor 331 and the distal capacitor 332, and specifically, for example, the distal time coefficient may be a product of the distal adjustment resistor 331 and the distal capacitor 332. If the resistance value of the remote adjustment resistor 331 is R Far distance The capacitance value of the far-end capacitor 332 is C Far distance The far-end time coefficient tau Far distance ＝R Far distance C Far distance 。
The distal amplification factor is determined according to the distal input resistor 342 and the distal reverse resistor 343, and specifically, for example, the distal amplification factor may be a ratio of the distal reverse resistor 343 to the distal input resistor 342. If the resistance value of the far-end input resistor 342 is R 342 The resistance value of the far-end reverse resistor 343 is R 343 The far-end amplification factor alpha In (a) ＝R 343 /R 342 。
In practical applicationThe near-end operational amplifier 301, the middle-end operational amplifier 321 and the far-end operational amplifier 341 according to the present invention may be operational amplifiers disposed separately or integrated together. In the compensation adjustment circuit 203 shown in fig. 6, the near-end operational amplifier 301, the middle-end operational amplifier 321, and the far-end operational amplifier 341 are integrated chips that are disposed in a unified manner, but the compensation adjustment circuit is not limited thereto. In the integrated chip 3 shown in fig. 6, vina+ and VINA-are two input terminals of the middle-end operational amplifier 321, and VOUTA is an output terminal of the middle-end operational amplifier 321; VINB+ and VINB-are two input terminals of the remote operational amplifier 341, and VOUTB is an output terminal of the remote operational amplifier 341; vind+ and VIND-are two inputs of the near-end operational amplifier 301, and VOUTD is an output of the near-end operational amplifier 301; VINC+, VINC-, and VOUTC are the inputs and outputs of another operational amplifier. Vss+ is a start-up interface of the integrated chip 3, and is used for inputting an operating voltage (avdd_vcom) of the integrated chip 3, so as to ensure that the integrated chip 3 starts up to operate. The three operational amplifiers 301, 321 and 341 have an input for inputting a predetermined dc voltage, V in fig. 6 comin The preset dc voltage is set by user according to the type, material or other properties of the display panel 3, which is not limited in the present invention.
Optionally, in practical applications, the compensation adjustment circuit 203 may further include other components that are set up in a self-defining manner, for example, a filter capacitor is further disposed between the time adjustment circuit and the inverting amplification circuit, and a voltage dividing network is further disposed at the output end of each operational amplifier, where the voltage dividing network includes two voltage dividing resistors connected to the compensation wires at each end as shown in the drawings, and the disclosure of the present invention is not described in detail herein.
In some alternative embodiments, the near-end feedback signal to which the present invention relates may include a direct current component signal and an alternating current component signal. The near-end feedback signal is a time-varying function, expressed as shown in equation (1):
U FB (t)＝V comin +U ripple (t) formula (1)
Wherein t is time, U FB (t) is the near-end feedback signal, V comin For the DC voltage value of the DC component signal, U ripple (t) is the ac component signal.
It will be appreciated that the jump signal transmitted on the signal line is coupled to the near-end feedback signal (specifically, the near-end driving signal) through the CDC coupling capacitor, and can generate a pull change on the near-end feedback signal, which can be generally understood as a pulse excitation, and please refer to fig. 7, which shows a waveform schematic diagram of the pulse excitation. As in fig. 7, the impulse excitation may consist of impulse excitation (1) and impulse response (2), U ripple (t) can be understood as a first-order delay RC response generated after the transition of the near-end driving signal by the transition signal, and the expression is as shown in the following formula (2):
wherein U is 0 For the amplitude of the alternating component signal τ 0 Is equivalent time constant of a near-end driving loop (particularly a loop consisting of a near-end feedback wire, a near-end reverse amplifying circuit, a near-end compensating wire and a display area), and tau 0 ＝R 0 C 0 。R 0 C is the equivalent resistance of the near-end drive loop 0 Is the equivalent capacitance of the proximal drive loop. Epsilon (t) is a step function corresponding to the impulse response.
In practical application, see fig. 6 for an example, the near-end feedback signal U FB (t) after time compensation by the time adjustment circuit in the compensation adjustment circuit 203, the obtained corresponding end time signal is shown in the following formula (3):
wherein h (ζ) isImpulse function, ζ is independent variable coefficient. τ is the time constant of the corresponding terminal time adjustment circuit, which may be specifically the remote time constant τ Far distance Or mid-end time constant τ In (a) . C is the opposite end capacitor of the corresponding end time adjusting circuit, which can be specifically the far end capacitor C Far distance Or a middle-end capacitor C In (a) 。U C The corresponding end time signal may be the remote time signal U Cfar Or a mid-end time signal U In C 。
Further the invention will U C After being processed by a corresponding reverse amplifying circuit, the corresponding far-end compensation signal V can be obtained Far com And mid-end compensation signal V In com Specifically, the method can be shown in the following formula (4):
for the near-end compensation signal, the near-end compensation signal V shown in the following formula (5) can be obtained after the near-end feedback signal is subjected to adjustment of a certain amplification factor com approach 。
Please refer to fig. 8, which is a schematic diagram illustrating a possible signal simulation comparison according to an embodiment of the present invention. As shown in FIG. 8, the present invention employs τ 0 ＝0.1、α Near-to-near ＝1、α In (a) ＝2、τ In (a) ＝0.3、α Far distance =2 and τ Far distance For example, =0.5, a comparison of the near-end feedback signal, the near-end compensation signal, the middle-end compensation signal and the far-end compensation signal according to the present invention is specifically given. Wherein curve 1 represents the near-end feedback signal, curve 2 represents the near-end compensation signal, curve 3 represents the mid-end compensation signal, and curve 4 represents the far-end compensation signal. As can be seen from fig. 8, the compensation recovery time required for compensating the adjusted near-end compensation signal, the middle-end compensation signal and the far-end compensation signal according to the embodiment of the invention is different.
By implementing the embodiment of the invention, the invention provides a display panel, which comprises: the near-end compensation wiring, near-end feedback wiring and compensation adjustment circuit, near-end compensation wiring with near-end feedback wiring all with the compensation adjustment circuit is connected, wherein: the near-end feedback wire sends a near-end feedback signal to the compensation adjustment circuit, wherein the near-end feedback signal is a signal which is sent by a driving interface which is connected with the near-end feedback wire in the display panel and is nearest to the compensation adjustment circuit; the compensation adjustment circuit receives the near-end feedback signal and performs near-end compensation adjustment on the near-end feedback signal to obtain a near-end compensation signal; the near-end compensation wiring transmits the near-end compensation signal so as to drive the display panel to display through the near-end compensation signal. In the scheme, the near-end driving signal transmitted by the near-end feedback wiring is used as the feedback signal, the feedback signal is further compensated and adjusted to obtain the near-end compensation signal, and finally the near-end compensation signal is used for driving and displaying the display panel, so that the convenience and the high efficiency of the compensation and adjustment of the display panel are realized, and compared with the prior art, the invention uses the near-end feedback signal for compensation and adjustment, and shortens the compensation and recovery time of the display panel. In addition, the invention also solves the technical problems of bad crosstalk, influence on the display effect of the display panel and the like existing in the prior display panel adopting the far-end compensation scheme.
Based on the same inventive concept, another embodiment of the present invention provides a flow chart of a compensation adjustment method based on a display panel, please refer to fig. 9. The method shown in fig. 9 is applied to the display panel 2 shown in fig. 2-8, and comprises the following implementation steps:
s901, take the signal transmitted by the near-end feedback wire 202 as a near-end feedback signal, where the near-end feedback signal is a signal sent by a driving interface closest to the compensation adjustment circuit 203 in the display panel 3.
The present invention uses the near-end driving signal received by the near-end feedback wire 202 through the feedback interface 102 as a near-end feedback signal, and transmits the near-end feedback signal to the compensation adjustment circuit 203.
S902, performing near-end compensation adjustment on the near-end feedback signal by using the compensation adjustment circuit 203 to obtain a near-end compensation signal.
S903, transmitting the near-end compensation signal by using the near-end compensation wire 201, so as to drive the display panel 2 to display by using the near-end compensation signal.
In an alternative embodiment, the present invention may further utilize the compensation adjustment circuit 203 to perform a distal compensation adjustment on the proximal feedback signal to obtain a corresponding distal compensation signal. The remote compensation wire 205 is further used to transmit the remote compensation signal to the display area 10 of the display panel 2, so as to drive the display area 10 of the display panel 2 to display by the remote compensation signal.
In an alternative embodiment, the present invention may further utilize the compensation adjustment circuit 203 to perform middle-end compensation adjustment on the near-end feedback signal to obtain a corresponding middle-end compensation signal. The mid-side compensation wire 204 is further utilized to transmit the mid-side compensation signal to the display area 10 of the display panel 2, so as to drive the display area 10 of the display panel 2 to display by the mid-side compensation signal.
It should be noted that the above two alternative embodiments may be implemented separately or in combination, and the present invention is not limited thereto. The descriptions of the embodiments of the present invention that are not described or not described in the embodiments of the display panel described above with reference to fig. 2 to 8 will be omitted herein.
The embodiment of the present invention further provides a display device, which includes the display panel described in the embodiments of fig. 2 to 8, and the specific description thereof may be referred to above, and will not be repeated here.
One or more technical solutions provided in the embodiments of the present invention at least have the following technical effects or advantages: an embodiment of the present invention provides a display panel including: the near-end compensation wiring, near-end feedback wiring and compensation adjustment circuit, near-end compensation wiring with near-end feedback wiring all with the compensation adjustment circuit is connected, wherein: the near-end feedback wiring transmits a near-end feedback signal to the compensation adjustment circuit, wherein the near-end feedback signal is a signal transmitted by a driving interface closest to the compensation adjustment circuit in the display panel; the compensation adjustment circuit receives the near-end feedback signal and performs near-end compensation adjustment on the near-end feedback signal to obtain a near-end compensation signal; the near-end compensation wiring transmits the near-end compensation signal so as to drive the display panel to display through the near-end compensation signal. In the scheme, the near-end driving signal transmitted by the near-end feedback wiring is used as the feedback signal, the feedback signal is further compensated and adjusted to obtain the near-end compensation signal, and finally the near-end compensation signal is used for driving and displaying the display panel, so that the convenience and the high efficiency of the compensation and adjustment of the display panel are realized, and compared with the prior art, the invention uses the near-end feedback signal for compensation and adjustment, and shortens the compensation and recovery time of the display panel. In addition, the invention also solves the technical problems of bad crosstalk, influence on the display effect of the display panel and the like existing in the prior display panel adopting the far-end compensation scheme.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (14)
1. A display panel, the display panel comprising: the near-end compensation wiring, near-end feedback wiring and compensation adjustment circuit, near-end compensation wiring with near-end feedback wiring all with the compensation adjustment circuit is connected, wherein:
the near-end feedback wiring transmits a near-end feedback signal to the compensation adjustment circuit, wherein the near-end feedback signal is a signal transmitted by a driving interface closest to the compensation adjustment circuit in the display panel, and comprises a direct-current component signal and an alternating-current component signal;
The compensation adjustment circuit receives the near-end feedback signal and performs near-end compensation adjustment according to a preset near-end amplification factor, the direct-current component signal and the alternating-current component signal to obtain a near-end compensation signal;
the near-end compensation wiring transmits the near-end compensation signal so as to drive the display panel to display through the near-end compensation signal;
the display panel further includes: the far-end compensation wiring and/or the middle-end compensation wiring are/is connected with the compensation adjustment circuit, wherein:
the compensation adjustment circuit carries out far-end compensation adjustment according to the preset far-end amplification coefficient, the preset far-end time coefficient, the direct-current component signal and the alternating-current component signal to obtain a far-end compensation signal, and/or carries out middle-end compensation adjustment according to the preset middle-end amplification coefficient, the preset middle-end time coefficient, the direct-current component signal and the alternating-current component signal to obtain a middle-end compensation signal;
the far-end compensation wiring transmits the far-end compensation signal so as to drive the display panel to display through the far-end compensation signal;
the middle-end compensation wiring transmits the middle-end compensation signal so as to drive the display panel to display through the middle-end compensation signal;
The distance between the driving interface connected with the far-end compensation wiring, the middle-end compensation wiring and the near-end compensation wiring in the display panel and the compensation adjustment circuit is sequentially reduced; the near-end amplification factor, the middle-end amplification factor and the far-end amplification factor are different; the far-end time coefficient and the middle-end time coefficient are different; the compensation recovery time required by the compensation of the adjusted near-end compensation signal, the middle-end compensation signal and the far-end compensation signal is different.
2. The display panel of claim 1, wherein the display panel comprises the distal compensation trace and a grid array, the distal compensation trace being disposed inside the grid array.
3. The display panel of claim 1, wherein the near-end feedback trace is disposed on a first side of the display panel or a second side adjacent to the first side, wherein the first side is a side of the display panel closest to the compensation adjustment circuit.
4. A display panel according to any one of claims 1-3, wherein the compensation adjustment circuit comprises a near-end inverting amplification circuit, wherein:
And the near-end reverse amplification circuit performs near-end reverse amplification on the near-end feedback signal according to a preset near-end amplification coefficient to obtain the near-end compensation signal.
5. The display panel of claim 4, wherein the near-end inverting amplification circuit comprises a near-end input resistor, a near-end operational amplifier and a near-end inverting resistor, the near-end feedback trace is connected with the input end of the near-end operational amplifier through the near-end input resistor, two ends of the near-end inverting resistor are respectively connected with the input end of the near-end operational amplifier and the output end of the near-end operational amplifier, and the output end of the near-end operational amplifier is also connected with the near-end compensation trace.
6. The display panel of claim 5, wherein the near-end magnification factor is determined based on the near-end input resistance and the near-end inverse resistance.
7. A display panel according to any one of claims 1-3, wherein the compensation adjustment circuit comprises a mid-side time adjustment circuit and a mid-side inverting amplification circuit, wherein:
the middle-end time adjustment circuit performs middle-end time compensation on the near-end feedback signal according to a preset middle-end time coefficient to obtain a middle-end time signal;
And the middle-end reverse amplification circuit performs middle-end reverse amplification on the middle-end time signal according to a preset middle-end amplification coefficient to obtain the middle-end compensation signal.
8. The display panel according to claim 7, wherein the middle-end time adjustment circuit comprises a middle-end adjustment resistor and a middle-end capacitor, the middle-end inverting amplification circuit comprises a middle-end input resistor, a middle-end operational amplifier and a middle-end inverting resistor, the near-end feedback trace is respectively connected with one end of the middle-end capacitor and one end of the middle-end input resistor through the middle-end adjustment resistor, the other end of the middle-end capacitor is connected with ground, the other end of the middle-end input resistor is respectively connected with the input end of the middle-end operational amplifier and one end of the middle-end inverting resistor, and the output end of the middle-end operational amplifier is respectively connected with the other end of the middle-end inverting resistor and the middle-end compensating trace.
9. The display panel of claim 8, wherein the middle-end time coefficient is determined based on the middle-end adjustment resistance and the middle-end capacitance, and the middle-end amplification coefficient is determined based on the middle-end input resistance and the middle-end reverse resistance.
10. A display panel according to any one of claims 1-3, wherein the compensation adjustment circuit comprises a far-end time adjustment circuit and a far-end inverting amplification circuit, wherein:
the far-end time adjustment circuit performs far-end time compensation on the near-end feedback signal according to a preset far-end time coefficient to obtain a far-end time signal;
and the far-end reverse amplifying circuit carries out far-end reverse amplification on the far-end time signal according to a preset far-end amplifying coefficient to obtain the far-end compensation signal.
11. The display panel of claim 10, wherein the remote time adjustment circuit comprises a remote adjustment resistor and a remote capacitor, the remote inverting amplification circuit comprises a remote input resistor, a remote operational amplifier and a remote inverting resistor, the near feedback trace is connected to one end of the remote capacitor and one end of the remote input resistor through the remote adjustment resistor, the other end of the remote capacitor is connected to ground, the other end of the remote input resistor is connected to the input of the remote operational amplifier and one end of the remote inverting resistor, and the output of the remote operational amplifier is connected to the other end of the remote inverting resistor and the remote compensating trace, respectively.
12. The display panel of claim 11, wherein the distal time coefficient is determined based on the distal adjustment resistance and the distal capacitance, and the distal amplification coefficient is determined based on the distal input resistance and the distal inverse resistance.
13. The display panel comprises a near-end compensation wiring, a near-end feedback wiring and a compensation adjustment circuit connected with the near-end compensation wiring and the near-end feedback wiring, and the method comprises the following steps:
the signal transmitted by the near-end feedback wiring is used as a near-end feedback signal, the near-end feedback signal is a signal which is sent out by a driving interface which is connected with the near-end feedback wiring in the display panel and is nearest to the compensation adjustment circuit, and the near-end feedback signal comprises a direct-current component signal and an alternating-current component signal;
performing near-end compensation adjustment by using the compensation adjustment circuit according to a preset near-end amplification factor, the direct-current component signal and the alternating-current component signal to obtain a near-end compensation signal;
transmitting the near-end compensation signal by utilizing the near-end compensation wiring so as to drive the display panel to display through the near-end compensation signal;
The display panel further includes: the far-end compensation wiring and/or the middle-end compensation wiring are/is connected with the compensation adjustment circuit, wherein:
the compensation adjustment circuit carries out far-end compensation adjustment according to the preset far-end amplification coefficient, the preset far-end time coefficient, the direct-current component signal and the alternating-current component signal to obtain a far-end compensation signal, and/or carries out middle-end compensation adjustment according to the preset middle-end amplification coefficient, the preset middle-end time coefficient, the direct-current component signal and the alternating-current component signal to obtain a middle-end compensation signal;
the far-end compensation wiring transmits the far-end compensation signal so as to drive the display panel to display through the far-end compensation signal;
the middle-end compensation wiring transmits the middle-end compensation signal so as to drive the display panel to display through the middle-end compensation signal;
the distance between the driving interface connected with the far-end compensation wiring, the middle-end compensation wiring and the near-end compensation wiring in the display panel and the compensation adjustment circuit is sequentially reduced; the near-end amplification factor, the middle-end amplification factor and the far-end amplification factor are different; the far-end time coefficient and the middle-end time coefficient are different; the compensation recovery time required by the compensation of the adjusted near-end compensation signal, the middle-end compensation signal and the far-end compensation signal is different.
14. A display device, characterized in that the display device comprises a display panel according to any of the preceding claims 1-12.
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