CN109308883B - Voltage compensation method of display panel - Google Patents
Voltage compensation method of display panel Download PDFInfo
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- CN109308883B CN109308883B CN201811448713.9A CN201811448713A CN109308883B CN 109308883 B CN109308883 B CN 109308883B CN 201811448713 A CN201811448713 A CN 201811448713A CN 109308883 B CN109308883 B CN 109308883B
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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
- G09G3/3607—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 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
Abstract
The application provides a voltage compensation method of a display panel, which comprises the steps of obtaining the gray-scale value of the Nth frame of a plurality of pixel points and the gray-scale value of the N-1 th frame of the plurality of pixel points. And determining the compensation voltage value of the Nth frame of the pixel points according to the gray-scale value of the Nth frame of the pixel points, the gray-scale value of the (N-1) th frame and a preset rule. The preset rule includes a correspondence relationship between the gray-scale value of the nth frame of the plurality of pixel points, the gray-scale value of the N-1 th frame, and the compensation voltage value of the nth frame of the plurality of pixel points. And processing the input voltage value of the Nth frame of the pixel points and the compensation voltage value to obtain actual input voltage, and inputting the actual input voltage into a display panel. N is greater than or equal to 1. The display panel can avoid voltage loss caused by parasitic capacitance coupling effect, ensures that the gray scale displayed by the pixels in the display panel is the target gray scale, and further improves the display quality of the panel and the customer satisfaction.
Description
Technical Field
The present application relates to the field of display technologies, and in particular, to a voltage compensation method for a display panel.
Background
In a TFT-LCD (Thin Film Transistor-Liquid Crystal Display), when a TFT (Thin Film Transistor) is turned on or off, charges on a pixel electrode do not flow to a data line any more, and the charges are conserved.
Due to the parasitic capacitance between the gate and the source, the voltage on the pixel electrode has a variation, which causes the pixel voltage set by the data line to be written to fluctuate after the TFT is turned off. The changed voltage not only makes the gray scale displayed by the pixel finally deviate from the gray scale expected to be expressed by the original writing voltage. And the original data line is written with voltage with symmetrical positive and negative polarities, and the voltage deviates downwards to generate a direct current residual effect.
However, the conventional display panel cannot avoid the influence of the parasitic capacitance on the voltage during the design.
Disclosure of Invention
Accordingly, it is necessary to provide a voltage compensation method for a display panel, which is directed to the problem that the influence of the parasitic capacitance on the voltage cannot be avoided during the design of the conventional display panel.
A voltage compensation method of a display panel includes:
acquiring the gray-scale value of the Nth frame of a plurality of pixel points and the gray-scale value of the (N-1) th frame of the plurality of pixel points;
determining a compensation voltage value of an Nth frame of the plurality of pixel points according to the gray-scale value of the Nth frame of the plurality of pixel points, the gray-scale value of an Nth frame of an N-1 th frame and a preset rule, wherein the preset rule comprises a corresponding relation among the gray-scale value of the Nth frame of the plurality of pixel points, the gray-scale value of the Nth frame of the N-1 th frame and the compensation voltage value of the Nth frame of the plurality of pixel points;
processing the input voltage value of the Nth frame of the pixel points and the compensation voltage value to obtain actual input voltage, and inputting the actual input voltage into a display panel; and
n is greater than or equal to 1.
In one embodiment, before the step of obtaining the gray scale values of the nth frame of the plurality of pixel points and the gray scale values of the N-1 th frame of the plurality of pixel points, the method further includes:
and acquiring the input voltage value of the Nth frame of the plurality of pixel points.
In one embodiment, after the step of obtaining the input voltage value of the nth frame of the plurality of pixel points, the method further includes:
judging the potential of the input voltage value of the Nth frame of the plurality of pixel points;
and if the potential of the input voltage value is a high potential, processing the input voltage value of the Nth frame of the plurality of pixel points and the compensation voltage value to obtain an actual input voltage, and inputting the actual input voltage into a display panel.
In one embodiment, after the step of obtaining the input voltage value of the nth frame of the plurality of pixel points, the method further includes:
and if the potential of the input voltage value is a low potential, returning to the step of acquiring the input voltage value of the Nth frame of the plurality of pixel points.
In one embodiment, the processing the input voltage value of the nth frame of the plurality of pixel points and the compensation voltage value to obtain an actual input voltage, and the inputting the actual input voltage to the display panel includes:
and summing the input voltage values of the Nth frame of the pixel points and the compensation voltage values to obtain actual input voltage, and inputting the actual input voltage into a display panel.
A voltage compensation method of a display panel includes:
acquiring the gray scale value of the Nth frame of the nth pixel point and the gray scale value of the (N-1) th frame of the nth pixel point;
determining a compensation voltage value of the nth frame of the nth pixel point according to the gray scale value of the nth frame of the nth pixel point, the gray scale value of the nth-1 frame and a preset rule, wherein the preset rule comprises a corresponding relation of the gray scale value of the nth frame of the nth pixel point, the gray scale value of the nth-1 frame and the compensation voltage value of the nth frame of the nth pixel point;
processing the input voltage value of the Nth frame of the nth pixel point and the compensation voltage value to obtain an actual input voltage, and inputting the actual input voltage into a display panel;
n is greater than or equal to 1;
n is greater than or equal to 1.
In one embodiment, before the step of obtaining the gray scale value of the nth frame of the nth pixel point and the gray scale value of the N-1 th frame of the nth pixel point, the method further includes:
and acquiring the input voltage value of the Nth frame of the nth pixel point.
In one embodiment, after the step of obtaining the input voltage value of the nth frame of the nth pixel point, the method further includes:
judging the potential of the input voltage value of the Nth frame of the nth pixel point;
and if the potential of the input voltage value is a high potential, processing the input voltage value of the nth frame of the nth pixel point and the compensation voltage value to obtain an actual input voltage, and inputting the actual input voltage into a display panel.
In one embodiment, after the step of obtaining the input voltage value of the nth frame of the nth pixel point, the method further includes:
and if the potential of the input voltage value is a low potential, returning to the step of acquiring the input voltage value of the Nth frame of the nth pixel point.
A voltage compensation method of a display panel includes:
acquiring the gray-scale value of the Nth frame of a plurality of pixel points and the gray-scale value of the (N-1) th frame of the plurality of pixel points;
determining a compensation voltage value of an Nth frame of the plurality of pixel points according to the gray-scale value of the Nth frame of the plurality of pixel points, the gray-scale value of an Nth frame of an N-1 th frame and a preset rule, wherein the preset rule comprises a corresponding relation among the gray-scale value of the Nth frame of the plurality of pixel points, the gray-scale value of the Nth frame of the N-1 th frame and the compensation voltage value of the Nth frame of the plurality of pixel points;
acquiring input voltage values of the Nth frame of the plurality of pixel points, and judging the potential of the input voltage values;
if the potential of the input voltage value is high potential, summing the input voltage value of the Nth frame of the pixel points and the compensation voltage value to obtain actual input voltage, and inputting the actual input voltage into a display panel;
n is greater than or equal to 1.
Compared with the prior art, the voltage compensation method of the display panel comprises the step of obtaining the gray-scale value of the Nth frame of the pixel points and the gray-scale value of the (N-1) th frame of the pixel points. And determining the compensation voltage value of the Nth frame of the pixel points according to the gray-scale value of the Nth frame of the pixel points, the gray-scale value of the (N-1) th frame and a preset rule. The preset rule includes a correspondence relationship between the gray-scale value of the nth frame of the plurality of pixel points, the gray-scale value of the N-1 th frame, and the compensation voltage value of the nth frame of the plurality of pixel points. And processing the input voltage value of the Nth frame of the pixel points and the compensation voltage value to obtain actual input voltage, and inputting the actual input voltage into a display panel. N is greater than or equal to 1.
The compensation voltage value of the Nth frame of the pixel points is determined according to the gray-scale value of the Nth frame of the pixel points, the gray-scale value of the N-1 th frame of the pixel points and the preset rule, the compensation voltage value and the input voltage value of the Nth frame of the pixel points are processed, and the processed actual input voltage is provided for the display panel. The voltage loss of the parasitic capacitor caused by the coupling effect is avoided, the gray scale displayed by the pixels in the display panel is ensured to be the target gray scale, and the display quality of the panel and the customer satisfaction are improved.
Drawings
Fig. 1 is a flowchart illustrating a voltage compensation method for a display panel according to an embodiment of the present disclosure;
FIG. 2 is a circuit diagram illustrating the parasitic capacitive coupling effect according to an embodiment of the present disclosure;
fig. 3 is a waveform diagram illustrating the parasitic capacitive coupling effect according to an embodiment of the present disclosure.
100 parasitic capacitance
200 data line
300 scan line
400 display panel
500 thin film transistor
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and it is therefore not intended to be limited to the embodiments disclosed below.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all 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. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, an embodiment of the present application provides a voltage compensation method for a display panel, including:
s102: and acquiring the gray-scale value of the Nth frame of the pixel points and the gray-scale value of the (N-1) th frame of the pixel points.
It can be understood that the manner of obtaining the gray scale values of the nth frame of the plurality of pixel points and the gray scale values of the N-1 th frame of the plurality of pixel points is not limited, as long as it is ensured that the gray scale values of the nth frame of the plurality of pixel points and the gray scale values of the N-1 th frame of the plurality of pixel points can be obtained. In one embodiment, the gray scale value of the nth frame of the plurality of pixel points and the gray scale value of the N-1 th frame of the plurality of pixel points may be obtained by a conventional obtaining method. In one embodiment, N is a natural number greater than or equal to 1.
S104: determining the compensation voltage value of the Nth frame of the plurality of pixel points according to the gray-scale value of the Nth frame of the plurality of pixel points, the gray-scale value of the N-1 th frame and a preset rule, wherein the preset rule comprises the corresponding relation of the gray-scale value of the Nth frame of the plurality of pixel points, the gray-scale value of the N-1 th frame and the compensation voltage value of the Nth frame of the plurality of pixel points.
In one embodiment, the gray scale value of the nth frame of the plurality of pixel points, the gray scale value of the N-1 th frame, and the compensation voltage value of the nth frame of the plurality of pixel points may be in a corresponding relationship as shown in the following table.
When the gray scale value of the Nth frame of the pixel points is 1 and the gray scale value of the N-1 th frame of the pixel points is 0, the compensation voltage value of the Nth frame of the pixel points is V10. When the gray scale value of the Nth frame of the pixel points is 254 and the gray scale value of the N-1 th frame of the pixel points is 1, the compensation voltage value of the Nth frame of the pixel points is V2541. When the gray scale value of the Nth frame of the pixel points is 1 and the gray scale value of the N-1 th frame of the pixel points is 255, the compensation voltage value of the Nth frame of the pixel points is V1255. Similarly, the correspondence between the compensation voltage values of the nth frame of the other pixels and the gray scale values of the nth frame of the pixels and the gray scale values of the N-1 th frame of the pixels also adopts the correspondence.
According to the table, when the gray-scale value of the nth frame and the gray-scale value of the N-1 th frame of the plurality of pixel points are determined values, the compensation voltage value of the nth frame of the plurality of pixel points can be determined according to the table. In an embodiment, the correspondence between the gray scale value of the nth frame of the plurality of pixel points, the gray scale value of the N-1 th frame of the plurality of pixel points, and the compensation voltage value of the nth frame of the plurality of pixel points may also be implemented in other manners, which is not specifically limited herein, as long as it is ensured that the compensation voltage value of the nth frame of the plurality of pixel points can be determined according to the gray scale value of the nth frame of the plurality of pixel points and the gray scale value of the N-1 th frame of the plurality of pixel points.
S106: processing the input voltage value of the nth frame of the plurality of pixel points and the compensation voltage value to obtain an actual input voltage, and inputting the actual input voltage into the display panel 400; and N is greater than or equal to 1.
It can be understood that the manner of processing the input voltage value of the nth frame of the plurality of pixel points and the compensation voltage value is not limited, as long as the actual input voltage can be obtained. In one embodiment, the input voltage value and the compensation voltage value of the nth frame of the plurality of pixel points may be summed. In an embodiment, the input voltage value and the compensation voltage value of the nth frame of the plurality of pixel points may also be subjected to a product process. The specific processing mode can be selected according to actual requirements.
Referring to fig. 2, a voltage is input to the gate of the thin film transistor 500 through the data line 200, the thin film transistor 500 is turned on, and the voltage is transmitted to the display panel 400 through the parasitic capacitor 100 and the scan line 300, so that the display panel 400 displays a picture.
In this embodiment, the compensation voltage values of the nth frame of the plurality of pixel points are determined according to the grayscale values of the nth frame of the plurality of pixel points, the grayscale values of the N-1 th frame of the plurality of pixel points, and the preset rule, and the compensation voltage values and the input voltage values of the nth frame of the plurality of pixel points are processed, and the processed actual input voltage is provided to the display panel 400. The voltage loss of the parasitic capacitor 100 caused by the coupling effect is avoided, and the gray scale displayed by the pixels in the display panel 400 is ensured to be the target gray scale, so that the display quality of the display panel 400 is improved, and the customer satisfaction is improved.
In an embodiment, before the step of obtaining the gray scale values of the nth frame of the plurality of pixel points and the gray scale values of the N-1 th frame of the plurality of pixel points, the method further includes: and acquiring the input voltage value of the Nth frame of the plurality of pixel points.
It can be understood that the manner of obtaining the input voltage values of the nth frame of the plurality of pixel points is not limited, as long as the input voltage values of the nth frame of the plurality of pixel points can be obtained. In one embodiment, the input voltage value of the nth frame of the plurality of pixel points may be obtained by a multimeter. In one embodiment, the input voltage value of the nth frame of the plurality of pixel points may also be obtained through a voltmeter. The specific mode of obtaining the input voltage values of the nth frame of the plurality of pixel points can be selected according to actual requirements.
Referring to fig. 3, in an embodiment, after the step of obtaining the input voltage value of the nth frame of the plurality of pixel points, the method further includes: and judging the potential of the input voltage value of the Nth frame of the plurality of pixel points. If the potential of the input voltage value is a high potential, the input voltage value of the nth frame of the plurality of pixel points and the compensation voltage value are processed to obtain an actual input voltage, and the actual input voltage is input to the display panel 400.
It can be understood that, only when the potential of the input voltage value is a high potential, the input voltage value of the nth frame of the plurality of pixel points and the compensation voltage value are processed, so as to obtain the actual input voltage. When the potential of the input voltage value is a low potential, the input voltage value and the compensation voltage value of the nth frame of the plurality of pixels are not processed, that is, the input voltage value is not voltage-compensated, and only when the potential of the input voltage value is a high potential, the input voltage value is voltage-compensated, so that the voltage input to the display panel 400 is a target voltage.
In one embodiment, after the step of obtaining the input voltage value of the nth frame of the plurality of pixel points, the method further includes: and if the potential of the input voltage value is a low potential, returning to the step of acquiring the input voltage value of the Nth frame of the plurality of pixel points. And when the potential of the input voltage value is judged to be a low potential, returning to the step of acquiring the input voltage value of the Nth frame of the plurality of pixel points, and processing the input voltage value of the Nth frame of the plurality of pixel points and the compensation voltage value until the potential of the input voltage value is judged to be a high potential.
In one embodiment, the processing the input voltage value of the nth frame of the plurality of pixel points and the compensation voltage value to obtain an actual input voltage, and the step of inputting the actual input voltage to the display panel includes: and summing the input voltage values of the Nth frame of the pixel points and the compensation voltage values to obtain actual input voltage, and inputting the actual input voltage into a display panel. In an embodiment, the input voltage value of the nth frame of the plurality of pixel points and the compensation voltage value may also be subjected to a product processing, as long as the actual input voltage is ensured to be obtained.
Another embodiment of the present application provides a voltage compensation method for a display panel, including: firstly, the gray scale value of the Nth frame of the nth pixel point and the gray scale value of the (N-1) th frame of the nth pixel point are obtained. Secondly. And determining the compensation voltage value of the Nth frame of the nth pixel point according to the gray-scale value of the Nth frame of the nth pixel point, the gray-scale value of the N-1 th frame and a preset rule, wherein the preset rule comprises the corresponding relation of the gray-scale value of the Nth frame of the nth pixel point, the gray-scale value of the N-1 th frame and the compensation voltage value of the Nth frame of the nth pixel point. And finally, processing the input voltage value of the Nth frame of the nth pixel point and the compensation voltage value to obtain actual input voltage, and inputting the actual input voltage into a display panel. Wherein N is greater than or equal to 1 and N is greater than or equal to 1.
It can be understood that the manner of obtaining the gray scale value of the nth frame of the nth pixel point and the gray scale value of the N-1 th frame of the nth pixel point is not limited, as long as it is ensured that the gray scale value of the nth frame of the nth pixel point and the gray scale value of the N-1 th frame of the nth pixel point can be obtained. In one embodiment, the gray scale value of the nth frame of the nth pixel and the gray scale value of the N-1 th frame of the nth pixel may be obtained by a conventional obtaining method. In one embodiment, N is a natural number greater than or equal to 1.
In an embodiment, the correspondence relationship between the gray scale value of the nth frame of the nth pixel point, the gray scale value of the N-1 th frame, and the compensation voltage value of the nth frame of the nth pixel point may adopt the correspondence relationship described in the above embodiment, and a description thereof will not be repeated.
It can be understood that the manner of processing the input voltage value of the nth frame of the nth pixel point and the compensation voltage value is not limited, as long as the actual input voltage can be obtained. In one embodiment, the input voltage value and the compensation voltage value of the nth frame of the nth pixel point may be summed. In an embodiment, the input voltage value and the compensation voltage value of the nth frame of the nth pixel point may also be subjected to a product process. The specific processing mode can be selected according to actual requirements.
In this embodiment, the compensation voltage value of the nth frame of the nth pixel point is determined according to the grayscale value of the nth frame of the nth pixel point, the grayscale value of the N-1 th frame of the nth pixel point, and the preset rule, and the compensation voltage value and the input voltage value of the nth frame of the nth pixel point are processed, and the processed actual input voltage is provided to the display panel 400. The voltage loss of the parasitic capacitor 100 caused by the coupling effect is avoided, and the gray scale displayed by the pixels in the display panel 400 is ensured to be the target gray scale, so that the display quality of the display panel 400 is improved, and the customer satisfaction is improved.
In an embodiment, before the step of obtaining the gray scale value of the nth frame of the nth pixel point and the gray scale value of the N-1 th frame of the nth pixel point, the method further includes: and acquiring the input voltage value of the Nth frame of the nth pixel point.
It can be understood that the manner of obtaining the input voltage value of the nth frame of the nth pixel point is not limited, as long as it is ensured that the input voltage value of the nth frame of the nth pixel point can be obtained. In one embodiment, the input voltage value of the nth frame of the nth pixel point can be obtained through a multimeter. In an embodiment, the input voltage value of the nth frame of the nth pixel point may also be obtained through a voltmeter. The specific mode of obtaining the input voltage value of the nth frame of the nth pixel point can be selected according to actual requirements.
In one embodiment, after the step of obtaining the input voltage value of the nth frame of the nth pixel point, the method further includes: and judging the potential of the input voltage value of the Nth frame of the nth pixel point. And if the potential of the input voltage value is a high potential, processing the input voltage value of the nth frame of the nth pixel point and the compensation voltage value to obtain an actual input voltage, and inputting the actual input voltage into a display panel.
It can be understood that, only when the potential of the input voltage value is a high potential, the input voltage value of the nth frame of the nth pixel point and the compensation voltage value are processed, so as to obtain the actual input voltage. When the potential of the input voltage value is a low potential, the input voltage value of the nth frame of the nth pixel point and the compensation voltage value are not processed, that is, the input voltage value is not voltage-compensated, and only when the potential of the input voltage value is a high potential, the input voltage value is voltage-compensated, so that the voltage input to the display panel 400 is a target voltage.
In one embodiment, after the step of obtaining the input voltage value of the nth frame of the nth pixel point, the method further includes: and if the potential of the input voltage value is a low potential, returning to the step of acquiring the input voltage value of the Nth frame of the nth pixel point. And when the potential of the input voltage value is judged to be a low potential, returning to the step of acquiring the input voltage value of the Nth frame of the nth pixel point, and processing the input voltage value of the Nth frame of the nth pixel point and the compensation voltage value until the potential of the input voltage value is judged to be a high potential.
An embodiment of the present application provides a voltage compensation method for a display panel, including: firstly, the gray-scale values of the Nth frame of a plurality of pixel points and the gray-scale values of the (N-1) th frame of the plurality of pixel points are obtained. Secondly, determining the compensation voltage value of the Nth frame of the pixel points according to the gray-scale value of the Nth frame of the pixel points, the gray-scale value of the (N-1) th frame and a preset rule. The preset rule includes a correspondence relationship between the gray-scale value of the nth frame of the plurality of pixel points, the gray-scale value of the N-1 th frame, and the compensation voltage value of the nth frame of the plurality of pixel points. And thirdly, obtaining the input voltage values of the Nth frame of the plurality of pixel points, and judging the potential of the input voltage values. And finally, if the potential of the input voltage value is high potential, summing the input voltage value of the Nth frame of the pixel points and the compensation voltage value to obtain actual input voltage, and inputting the actual input voltage into a display panel. Wherein N is greater than or equal to 1.
It can be understood that the manner of obtaining the gray scale values of the nth frame of the plurality of pixel points and the gray scale values of the N-1 th frame of the plurality of pixel points is not limited, as long as it is ensured that the gray scale values of the nth frame of the plurality of pixel points and the gray scale values of the N-1 th frame of the plurality of pixel points can be obtained. In one embodiment, the gray scale value of the nth frame of the plurality of pixel points and the gray scale value of the N-1 th frame of the plurality of pixel points may be obtained by a conventional obtaining method. In one embodiment, N is a natural number greater than or equal to 1.
In an embodiment, the correspondence relationship between the gray scale value of the nth frame of the plurality of pixel points, the gray scale value of the N-1 th frame of the plurality of pixel points, and the compensation voltage value of the nth frame of the plurality of pixel points may adopt the correspondence relationship described in the above embodiments, and will not be described repeatedly here.
To sum up, the present application can avoid the voltage loss of the parasitic capacitor 100 caused by the coupling effect, and ensure that the gray scale displayed by the pixels in the display panel 400 is the target gray scale, so as to improve the display quality of the display panel 400 and improve the customer satisfaction.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (4)
1. A voltage compensation method of a display panel is characterized by comprising the following steps:
acquiring input voltage values of an Nth frame of a plurality of pixel points;
judging the potential of the input voltage value of the Nth frame of the plurality of pixel points;
if the potential of the input voltage value is a low potential, returning to the step of acquiring the input voltage value of the Nth frame of the plurality of pixel points;
if the potential of the input voltage value is high potential, acquiring the gray-scale value of the Nth frame of the pixel points and the gray-scale value of the (N-1) th frame of the pixel points;
determining a compensation voltage value of an Nth frame of the plurality of pixel points according to the gray-scale value of the Nth frame of the plurality of pixel points, the gray-scale value of an Nth frame of an N-1 th frame and a preset rule, wherein the preset rule comprises a corresponding relation among the gray-scale value of the Nth frame of the plurality of pixel points, the gray-scale value of the Nth frame of the N-1 th frame and the compensation voltage value of the Nth frame of the plurality of pixel points;
processing the input voltage value of the Nth frame of the pixel points and the compensation voltage value to obtain actual input voltage, and inputting the actual input voltage into a display panel; and
n is greater than or equal to 1.
2. The voltage compensation method of claim 1, wherein the step of processing the input voltage value of the nth frame of the plurality of pixels and the compensation voltage value to obtain an actual input voltage, and inputting the actual input voltage to the display panel comprises:
and summing the input voltage values of the Nth frame of the pixel points and the compensation voltage values to obtain actual input voltage, and inputting the actual input voltage into a display panel.
3. A voltage compensation method of a display panel is characterized by comprising the following steps:
acquiring an input voltage value of an Nth frame of an nth pixel point;
judging the potential of the input voltage value of the Nth frame of the nth pixel point;
if the potential of the input voltage value is a low potential, returning to the step of acquiring the input voltage value of the Nth frame of the nth pixel point;
if the potential of the input voltage value is high potential, acquiring the gray scale value of the Nth frame of the nth pixel point and the gray scale value of the (N-1) th frame of the nth pixel point;
determining a compensation voltage value of the nth frame of the nth pixel point according to the gray scale value of the nth frame of the nth pixel point, the gray scale value of the nth-1 frame and a preset rule, wherein the preset rule comprises a corresponding relation of the gray scale value of the nth frame of the nth pixel point, the gray scale value of the nth-1 frame and the compensation voltage value of the nth frame of the nth pixel point;
processing the input voltage value of the Nth frame of the nth pixel point and the compensation voltage value to obtain an actual input voltage, and inputting the actual input voltage into a display panel;
n is greater than or equal to 1;
n is greater than or equal to 1.
4. The voltage compensation method of claim 3, wherein the step of processing the input voltage value of the nth frame of the nth pixel point and the compensation voltage value to obtain an actual input voltage, and inputting the actual input voltage to the display panel comprises:
and summing the input voltage value of the Nth frame of the nth pixel point and the compensation voltage value to obtain actual input voltage, and inputting the actual input voltage into a display panel.
Priority Applications (2)
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| CN201811448713.9A CN109308883B (en) | 2018-11-28 | 2018-11-28 | Voltage compensation method of display panel |
| PCT/CN2018/120068 WO2020107525A1 (en) | 2018-11-28 | 2018-12-10 | Voltage compensation method for display panel |
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| CN201811448713.9A CN109308883B (en) | 2018-11-28 | 2018-11-28 | Voltage compensation method of display panel |
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| WO2007091353A1 (en) * | 2006-02-07 | 2007-08-16 | Sharp Kabushiki Kaisha | Liquid crystal display device and method for driving the same |
| CN101231826A (en) * | 2007-01-23 | 2008-07-30 | 矽创电子股份有限公司 | Drive method for reducing torsion type and ultra-torsion type LCD device reaction time |
| CN102334153A (en) * | 2009-03-18 | 2012-01-25 | 夏普株式会社 | Display apparatus |
| CN104064157A (en) * | 2014-06-27 | 2014-09-24 | 深圳市华星光电技术有限公司 | Gray scale voltage compensation method and display device |
| CN107978282A (en) * | 2017-12-18 | 2018-05-01 | 惠科股份有限公司 | Display device and its driving method |
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| CN1983370A (en) * | 2005-12-16 | 2007-06-20 | 群康科技(深圳)有限公司 | Display system |
| KR101254030B1 (en) * | 2006-06-27 | 2013-04-12 | 삼성디스플레이 주식회사 | Display apparatus and apparatus and method for driving thereof |
| CN101556777A (en) * | 2008-04-11 | 2009-10-14 | 北京京东方光电科技有限公司 | Method and device for compensating responsive time of liquid crystal display |
| CN102568430A (en) * | 2012-03-06 | 2012-07-11 | 深圳市华星光电技术有限公司 | Driving method for liquid crystal panel, display driving circuit and liquid crystal display device |
| JP6182914B2 (en) * | 2013-03-13 | 2017-08-23 | セイコーエプソン株式会社 | Electro-optical device and electronic apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007091353A1 (en) * | 2006-02-07 | 2007-08-16 | Sharp Kabushiki Kaisha | Liquid crystal display device and method for driving the same |
| CN101231826A (en) * | 2007-01-23 | 2008-07-30 | 矽创电子股份有限公司 | Drive method for reducing torsion type and ultra-torsion type LCD device reaction time |
| CN102334153A (en) * | 2009-03-18 | 2012-01-25 | 夏普株式会社 | Display apparatus |
| CN104064157A (en) * | 2014-06-27 | 2014-09-24 | 深圳市华星光电技术有限公司 | Gray scale voltage compensation method and display device |
| CN107978282A (en) * | 2017-12-18 | 2018-05-01 | 惠科股份有限公司 | Display device and its driving method |
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| CN109308883A (en) | 2019-02-05 |
| WO2020107525A1 (en) | 2020-06-04 |
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