CN111292701B - Display panel compensation method and device - Google Patents
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Abstract
The application provides a compensation method and a device of a display panel, wherein the processing method comprises the steps of obtaining a first gray scale value of any sub-pixel in a target panel when the sub-pixel is in a first gray scale and a second gray scale value when the sub-pixel is in a second gray scale; acquiring position information of a target sub-pixel in a target compensation area of the target panel according to the first gray scale value and the second gray scale value; acquiring a gray scale compensation value of a reference sub-pixel adjacent to the target sub-pixel according to the position information of the target sub-pixel; and acquiring the gray scale compensation value of the target sub-pixel according to the gray scale compensation value of the reference sub-pixel. According to the method and the device, the coordinates of the target sub-pixel located in the special-shaped area in the target panel are obtained through the display image with the high gray scale and the low gray scale, the gray scale compensation value of the sub-pixel adjacent to the target sub-pixel is further obtained, accurate gray scale compensation is carried out on the target sub-pixel through interpolation of the gray scale compensation value of the adjacent sub-pixel, and the quality of products is improved.
Description
Technical Field
The present disclosure relates to display technologies, and in particular, to a display panel compensation method and device.
Background
Due to the driving and characteristics of the liquid crystal panel, the white balance gray scale color representation has a considerable color shift difference. In order to achieve a certain accuracy and consistency of the colors of the display, the gray levels of the display must be compensated one by one.
In the existing display panel, due to the existence of the irregular areas such as the rounded corners and the grooves in the panel, the sub-pixels located at the boundary of the irregular areas are usually compensated by linear interpolation of gray scales of the adjacent sub-pixels. And because the sub-pixel at one side is shielded, the gray scale of the sub-pixel at one side is an abnormal value, so that the compensation value of the sub-pixel at the abnormal area obtained by the prior art deviates from the preset compensation value, and the quality of the display panel is reduced.
Therefore, a compensation method for a display panel is needed to solve the above-mentioned problems.
Disclosure of Invention
The application provides a display panel compensation method and device, which are used for solving the technical problem that accurate gray scale compensation cannot be carried out on sub-pixels located in an abnormal area.
In order to solve the above problems, the technical solution provided by the present application is as follows:
the application provides a compensation method of a display panel, which comprises the following steps:
acquiring a first gray scale value of any sub-pixel in the target panel at a first gray scale and a second gray scale value at a second gray scale;
acquiring position information of a target sub-pixel in a target compensation area of the target panel according to the first gray scale value and the second gray scale value;
acquiring a gray scale compensation value of a reference sub-pixel adjacent to the target sub-pixel according to the position information of the target sub-pixel;
and acquiring the gray scale compensation value of the target sub-pixel according to the gray scale compensation value of the reference sub-pixel.
In the compensation method of the display panel of the present application, the step of obtaining a first gray scale value of any one of the sub-pixels in the target panel at a first gray scale and a second gray scale value at a second gray scale includes:
electrifying the target panel to display the target panel;
shielding the target panel by using a first shielding object;
enabling any sub-pixel in the target panel to be in a first gray scale, and acquiring a first gray scale value of any sub-pixel in the target panel when the sub-pixel is in the first gray scale;
enabling any sub-pixel in the target panel to be in a second gray scale, and acquiring a second gray scale value of any sub-pixel in the target panel when the sub-pixel is in the second gray scale;
the first gray scale is one of a low gray scale and a high gray scale, and the second gray scale is the other of the low gray scale and the high gray scale, which is different from the first gray scale.
In the compensation method of the display panel, the step of obtaining the position information of the target sub-pixel in the target compensation area of the target panel according to the first gray-scale value and the second gray-scale value comprises;
acquiring a first difference value of the first gray scale value and the second gray scale value of any sub-pixel according to the first gray scale value and the second gray scale value of any sub-pixel;
when the value of the first difference value is larger than a first threshold value, the sub-pixel is a non-target sub-pixel;
when the value of the first difference is smaller than or equal to a first threshold, the sub-pixel is the target sub-pixel, and the target sub-pixel constitutes the target sub-pixel area;
and acquiring the position information of the target sub-pixel in the target compensation area according to the target compensation area.
In the compensation method of the display panel of the present application, before the step of obtaining the gray-scale compensation value of the reference sub-pixel adjacent to the target sub-pixel according to the position information of the target sub-pixel, the method further includes:
and acquiring the gray scale compensation value of any sub-pixel when the target panel is not shielded by the first shielding object.
In the compensation method of the display panel of the present application, the step of obtaining the gray scale compensation value of the reference sub-pixel adjacent to the target sub-pixel according to the position information of the target sub-pixel includes:
acquiring the position information of a reference sub-pixel adjacent to the target sub-pixel according to the position information of the target sub-pixel;
and acquiring a gray scale compensation value of the reference sub-pixel according to the position information of the reference sub-pixel.
The application provides a compensation device of a display panel, which comprises a gray scale acquisition module, a judgment module, a first gray scale compensation acquisition module and a compensation module;
the gray scale acquisition module is used for acquiring a first gray scale value of any sub-pixel in the target panel when the sub-pixel is at a first gray scale and a second gray scale value of any sub-pixel in the target panel when the sub-pixel is at a second gray scale;
the judging module is used for acquiring the position information of the target sub-pixel in the target compensation area of the target panel according to the first gray-scale value and the second gray-scale value;
the first gray scale compensation acquisition module is used for acquiring a gray scale compensation value of a reference sub-pixel adjacent to the target sub-pixel according to the position information of the target sub-pixel;
the compensation module is used for acquiring the gray scale compensation value of the target sub-pixel according to the gray scale compensation value of the reference sub-pixel.
In the compensation device of the display panel, the gray scale obtaining module comprises a power-on unit, a shielding unit, a first gray scale obtaining unit and a second gray scale obtaining unit;
the power-on unit is used for powering on the target panel to display the target panel;
the shielding unit is used for shielding the target panel by using a first shielding object;
the first gray scale obtaining unit is used for enabling any sub-pixel in the target panel to be in a first gray scale and obtaining a first gray scale value of any sub-pixel in the target panel when the sub-pixel is in the first gray scale;
the second gray scale obtaining unit is used for enabling any sub-pixel in the target panel to be in a second gray scale and obtaining a second gray scale value of any sub-pixel in the target panel when the sub-pixel is in the second gray scale;
the first gray scale is one of a low gray scale and a high gray scale, and the second gray scale is the other of the low gray scale and the high gray scale, which is different from the first gray scale.
In the compensation device of the display panel, the judgment module comprises a difference unit, a judgment unit and a first position acquisition unit;
the difference unit is used for acquiring a first difference value of the first gray scale value and the second gray scale value of any sub-pixel according to the first gray scale value and the second gray scale value of any sub-pixel;
the judging unit is used for judging that the sub-pixel is a non-target sub-pixel when the value of the first difference value is larger than a first threshold value; when the value of the first difference is smaller than or equal to a first threshold, the sub-pixel is the target sub-pixel, and the target sub-pixel constitutes the target sub-pixel area;
the first position obtaining unit is used for obtaining the position information of the target sub-pixel in the target compensation area according to the target compensation area.
In the compensation device of the display panel, the compensation device of the display panel further comprises a second gray scale compensation obtaining module;
the second gray scale compensation acquisition module is used for acquiring a gray scale compensation value of any sub-pixel when the target panel is not shielded by the first shielding object.
In the compensation device of the display panel, the first gray scale compensation acquisition module comprises a second position acquisition unit and a gray scale compensation acquisition unit;
the second position acquisition unit is used for acquiring the position information of the reference sub-pixel adjacent to the target sub-pixel according to the position information of the target sub-pixel;
the gray scale compensation obtaining unit is used for obtaining a gray scale compensation value of the reference sub-pixel according to the position information of the reference sub-pixel.
Has the advantages that: according to the method and the device, the coordinates of the target sub-pixel located in the special-shaped area in the target panel are obtained through the display image with the high gray scale and the low gray scale, the gray scale compensation value of the sub-pixel adjacent to the target sub-pixel is further obtained, accurate gray scale compensation is carried out on the target sub-pixel through interpolation of the gray scale compensation value of the adjacent sub-pixel, and the quality of products is improved.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
FIG. 1 is a flowchart illustrating a compensation method for a display panel according to the present invention;
FIG. 2 is a first block diagram of a target panel of the present application;
FIG. 3 is a second block diagram of a target panel of the present application;
FIG. 4 is a first structural diagram of a compensation device of a display panel according to the present application;
fig. 5 is a second structural diagram of the compensation device of the display panel of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
In the existing display panel, due to the existence of the irregular areas such as the rounded corners and the grooves in the panel, the sub-pixels located at the boundary of the irregular areas are usually compensated by linear interpolation of gray scales of the adjacent sub-pixels. And because the sub-pixel at one side is shielded, the gray scale of the sub-pixel at one side is an abnormal value, so that the compensation value of the sub-pixel at the abnormal area obtained by the prior art deviates from the preset compensation value, and the quality of the display panel is reduced. The present application provides a compensation method and device for a display panel based on the above technical problems.
Referring to fig. 1, the present application provides a compensation method for a display panel, which includes:
s10, obtaining a first gray level value of any sub-pixel in the target panel 100100 at a first gray level and a second gray level value at a second gray level;
in this embodiment, the step of obtaining the first gray scale value of any sub-pixel in the target panel 100 at the first gray scale and the second gray scale value at the second gray scale may include:
s101, electrifying the target panel 100 to display the target panel 100;
s102, shielding the target panel 100 by using a first shielding object;
referring to fig. 2, the target panel 100 includes a display area 200 and a shielding area 300 located at the periphery of the display area 200. Wherein the shaded area is the occlusion area 300.
The target panel 100 is generally a regular display panel, and for different customer requirements, it is often necessary to process the target panel 100, for example, to form a fillet, a groove, and other irregular areas. Therefore, the target panel 100 needs to be occluded by a certain occlusion object to form a panel required by the customer, for example, the occlusion area 300 is the occluded area 300 area in the present application.
In this embodiment, the regular target panel 100 is occluded by the first occlusion, so that the target panel 100 forms the display area 200 having four circular arcs. The shape of the first shade is not particularly limited in this application, and the shape of the first shade can be formed into a corresponding shape according to the needs of a customer.
S103, enabling any sub-pixel in the target panel 100 to be in a first gray scale, and acquiring a first gray scale value of any sub-pixel in the target panel 100 when the first gray scale value is in the first gray scale;
s104, enabling any sub-pixel in the target panel 100 to be in a second gray scale, and acquiring a second gray scale value of any sub-pixel in the target panel 100 when the second gray scale value is in the second gray scale;
referring to fig. 3, due to the presence of the irregular area in the display panel, the sub-pixels located between the display area 200 and the shielding area 300 are divided by the boundary line, and the sub-pixels in the area are the target sub-pixels of the present application. When performing gray scale compensation, linear difference is usually obtained by gray scale compensation values located at the left and right of the target sub-pixel. For example, the sub-pixel located in the shielding region 300 does not emit light, so the corresponding gray scale compensation value is 0, and the sub-pixel located in the target sub-pixel close to the display region 200 is a normal value. Therefore, the gray scale compensation value of the target sub-pixel obtained by the above method is inaccurate.
In step S103 to step S104, preparation for acquiring the position of the target sub-pixel is mainly performed. For example, the target panel 100 is photographed by a corresponding camera, and then a first gray scale value of any sub-pixel in the target panel 100 at a first gray scale and a second gray scale value at a second gray scale are obtained by using a related device such as a computer.
In this embodiment, since the display area 200 is not shielded, the display area 200 can display the brightness of different gray scales in different gray scale states. Since the shielding region 300 is shielded by the first shielding object, the images obtained by the camera are the same even though the gray scale value outputted by the display panel is the same, so that the display region 200 and the shielding region 300 can be distinguished according to the steps S103 to S104.
In this embodiment, the first gray scale is one of a low gray scale and a high gray scale, and the second gray scale is the other of the low gray scale and the high gray scale different from the first gray scale. For example, in the case of 256 gray levels, the first gray level is a low gray level having a gray level value of 25, and the second gray level is a high gray level having a gray level value of 240.
S20, acquiring position information of a target sub-pixel in a target compensation area of the target panel 100 according to the first gray scale value and the second gray scale value;
in this embodiment, the step of obtaining the position information of the target sub-pixel in the target compensation area of the target panel 100 according to the first gray scale value and the second gray scale value includes;
s201, acquiring a first difference value of the first gray scale value and the second gray scale value of any sub-pixel according to the first gray scale value and the second gray scale value of any sub-pixel;
in this step, the first difference is obtained according to the first gray scale value and the second gray scale value of any one of the sub-pixels obtained in steps S103 to S104, and the difference between the second gray scale value and the first gray scale value. And judging the position of the corresponding sub-pixel according to the size of the first difference value.
For example, the first gray scale value of the sub-pixel P (a, b) in the a-th row and the b-th column is f (x1) in the first gray scale state, and the second gray scale value thereof is f (x2) in the second gray scale state. Therefore, the first difference value of any one sub-pixel may be defined as M ═ f (x1) -f (x2) |.
S202, when the numerical value of the first difference value is larger than a first threshold value, the sub-pixel is a non-target sub-pixel;
s203, when the value of the first difference is smaller than or equal to a first threshold, the sub-pixel is the target sub-pixel, and the target sub-pixel forms the target sub-pixel area;
in steps S202 to S203, the position of the corresponding sub-pixel is limited mainly by the size of M and the first threshold. In this embodiment, the size of the first threshold is not specifically limited in this application, and may be defined according to specific situations.
In this embodiment, since the display area 200 is not shielded, the display area 200 can display the brightness of different gray scales in different gray scale states. Therefore, according to the difference between the gray scale values obtained in step S103 and step S104, M corresponding to the sub-pixels in the display area 200 is greater than the first threshold value in the high-low gray scale display. Since the shielding region 300 is shielded by the first shielding object, the images obtained by the camera are the same even though the display panel outputs different gray-scale values. That is, under the display of high and low gray scales, the first difference M of the sub-pixels located in the blocking area 300 is equal to 0.
However, as shown in fig. 3, the sub-pixel located at the boundary between the display area 200 and the shielding area 300 is the target sub-pixel, and the target sub-pixel constitutes the target compensation area. The target sub-pixel is located in the display area 200 in a partial area and in the blocking area 300 in a partial area. The part of the display area 200 displays the brightness corresponding to different gray scales in the high and low gray scale states; and the portions of the shielding region 300 are all dark states in the high and low gray scale states. Therefore, the gray-scale value of the target sub-pixel should be equal to (the luminance generated by the portion located in the display area 200) × (the product of the areas of the target sub-pixels located in the display area 200)/the area of the target sub-pixel. I.e. the gray-scale value of the target sub-pixel is the equivalent of the luminance generated by the portion located in the display area 200.
Therefore, the first difference M of the target sub-pixel in the high-low gray level state is different from the first difference M of the sub-pixels located in the display area 200. The magnitude of the first difference M of the target sub-pixel is related to the area of the portion of the target sub-pixel located in the display area 200, and the larger the area ratio, the larger the magnitude of the first difference M, the smaller the area ratio, and the first difference M is close to 0.
And S204, acquiring the position information of the target sub-pixel in the target compensation area according to the target compensation area.
In this step, the position information of the target sub-pixel in the target compensation area is mainly obtained through a corresponding position function, such as a common find function, and details are not repeated here.
And S30, acquiring a gray scale compensation value of a reference sub-pixel adjacent to the target sub-pixel according to the position information of the target sub-pixel.
In this embodiment, the step of obtaining the gray-scale compensation value of the reference sub-pixel adjacent to the target sub-pixel according to the position information of the target sub-pixel includes:
s301, acquiring the position information of a reference sub-pixel adjacent to the target sub-pixel according to the position information of the target sub-pixel;
s302, obtaining a gray scale compensation value of the reference sub-pixel according to the position information of the reference sub-pixel.
In step S301, after the position information of the target sub-pixel in the target compensation area is obtained in step S204, even if a partial area of the target panel 100 is blocked by the first blocking object, the position information of the sub-pixels around the target sub-pixel, such as the area a in fig. 3, can be obtained according to the corresponding function.
Before step S30, the compensation method of the display panel may further include:
and acquiring the gray-scale compensation value of any sub-pixel when the target panel 100 is not shielded by the first shielding object.
In the above steps, the gray scale compensation value of any sub-pixel can be obtained in advance through corresponding equipment and algorithm. For example, the target panel 100 is photographed a plurality of times by a professional camera, images of the target panel 100 in different gray-scale states are acquired, and a gray-scale compensation value of any one sub-pixel can be acquired according to an electronic device such as a computer.
Therefore, in step S302, the gray-scale compensation value of the reference sub-pixel around the target sub-pixel is acquired according to the position information of the sub-pixel around the target sub-pixel acquired in step S301.
And S40, acquiring the gray scale compensation value of the target sub-pixel according to the gray scale compensation value of the reference sub-pixel.
In this step, interpolation calculation is performed mainly using the gray scale compensation values of the reference sub-pixels around the target sub-pixel, so as to obtain the gray scale compensation value of the target sub-pixel in the target panel 100.
In another embodiment of the present application, the gray-scale compensation value of the target sub-pixel can be further calculated by comparing the area occupied by the target sub-pixel in the display area 200. For example, the portion of a target sub-pixel located in the display area 200 is one-half of the area of the sub-pixel, and the gray-scale compensation value obtained in step S40 is X, so the actual gray-scale compensation value of the target sub-pixel is 0.5X.
According to the method and the device, the coordinates of the target sub-pixel in the special-shaped area in the target panel 100 are obtained through the display image with the high gray scale and the low gray scale, the gray scale compensation value of the sub-pixel adjacent to the target sub-pixel is further obtained, accurate gray scale compensation is carried out on the target sub-pixel through interpolation of the gray scale compensation values of the adjacent sub-pixels, and the quality of products is improved.
Referring to fig. 4, the present application further provides a compensation apparatus 400 for a display panel, which includes a gray-scale obtaining module 10, a determining module 20, a first gray-scale compensation obtaining module 30, and a compensation module 40;
the gray scale obtaining module 10 is configured to obtain a first gray scale value of any sub-pixel in the target panel at a first gray scale and a second gray scale value at a second gray scale;
the determining module 20 is configured to obtain position information of a target sub-pixel in a target compensation area of the target panel according to the first gray scale value and the second gray scale value;
the first gray scale compensation obtaining module 30 is configured to obtain a gray scale compensation value of a reference sub-pixel adjacent to the target sub-pixel according to the position information of the target sub-pixel;
the compensation module 40 is configured to obtain a gray scale compensation value of the target sub-pixel according to the gray scale compensation value of the reference sub-pixel.
Referring to fig. 5, the gray scale obtaining module 10 includes a power-on unit 101, a shielding unit 102, a first gray scale obtaining unit 103, and a second gray scale obtaining unit 104;
the power-on unit 101 is configured to power on the target panel to display the target panel;
the shielding unit 102 is configured to shield the target panel by using a first shielding object;
the first gray scale obtaining unit 103 is configured to enable any sub-pixel in the target panel to be at a first gray scale, and obtain a first gray scale value of any sub-pixel in the target panel at the first gray scale;
the second gray scale obtaining unit 104 is configured to enable any sub-pixel in the target panel to be at a second gray scale, and obtain a second gray scale value of any sub-pixel in the target panel at the second gray scale;
the first gray scale is one of a low gray scale and a high gray scale, and the second gray scale is the other of the low gray scale and the high gray scale, which is different from the first gray scale.
Referring to fig. 5, the determining module 20 includes a difference unit 201, a determining unit 202, and a first position obtaining unit 203;
the difference unit 201 is configured to obtain a first difference between the first gray scale value and the second gray scale value of any sub-pixel according to the first gray scale value and the second gray scale value of any sub-pixel;
the determining unit 202 is configured to determine the sub-pixel as a non-target sub-pixel when the value of the first difference is greater than a first threshold; when the value of the first difference is smaller than or equal to a first threshold, the sub-pixel is the target sub-pixel, and the target sub-pixel constitutes the target sub-pixel area;
the first position obtaining unit 203 is configured to obtain position information of a target sub-pixel in the target compensation area according to the target compensation area.
In this embodiment, the compensation apparatus 400 of the display panel further includes a second gray scale compensation obtaining module. The second gray scale compensation obtaining module 50 is configured to obtain a gray scale compensation value of any sub-pixel when the target panel is not covered by the first blocking object.
Referring to fig. 5, the first gray scale compensation obtaining module 30 includes a second position obtaining unit 301 and a gray scale compensation obtaining unit 302;
the second position obtaining unit 301 is configured to obtain position information of a reference sub-pixel adjacent to the target sub-pixel according to the position information of the target sub-pixel;
the gray scale compensation obtaining unit 302 is configured to obtain a gray scale compensation value of the reference sub-pixel according to the position information of the reference sub-pixel.
In this embodiment, the working principle of the compensation apparatus 400 of the display panel may refer to the compensation method of the display panel, and will not be described in detail herein.
The application provides a compensation method and a device of a display panel, wherein the processing method comprises the steps of obtaining a first gray scale value of any sub-pixel in a target panel when the sub-pixel is in a first gray scale and a second gray scale value when the sub-pixel is in a second gray scale; acquiring position information of a target sub-pixel in a target compensation area of the target panel according to the first gray scale value and the second gray scale value; acquiring a gray scale compensation value of a reference sub-pixel adjacent to the target sub-pixel according to the position information of the target sub-pixel; and acquiring the gray scale compensation value of the target sub-pixel according to the gray scale compensation value of the reference sub-pixel. According to the method and the device, the coordinates of the target sub-pixel located in the special-shaped area in the target panel are obtained through the display image with the high gray scale and the low gray scale, the gray scale compensation value of the sub-pixel adjacent to the target sub-pixel is further obtained, accurate gray scale compensation is carried out on the target sub-pixel through interpolation of the gray scale compensation value of the adjacent sub-pixel, and the quality of products is improved.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The above detailed description is provided for the compensation method and device of the display panel provided in the embodiments of the present application, and specific examples are applied in the present application to explain the principle and the implementation manner of the present application, and the description of the above embodiments is only used to help understanding the technical solution and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (6)
1. A compensation method for a display panel, comprising:
acquiring a first gray scale value of any sub-pixel in the target panel at a first gray scale and a second gray scale value at a second gray scale;
acquiring position information of a target sub-pixel in a target compensation area of the target panel according to the first gray scale value and the second gray scale value, wherein the target compensation area is a special-shaped area, and the target sub-pixel is a sub-pixel located at the junction of a display area and a shielding area in the target panel; partial area of the target sub-pixel is located in the display area, and partial area of the target sub-pixel is located in the shielding area;
acquiring a gray scale compensation value of a reference sub-pixel adjacent to the target sub-pixel according to the position information of the target sub-pixel;
performing gray scale compensation on the target sub-pixel by interpolating the gray scale compensation value of the reference sub-pixel according to the gray scale compensation value of the reference sub-pixel;
the step of acquiring the position information of the target sub-pixel in the target compensation area of the target panel according to the first gray scale value and the second gray scale value comprises the following steps;
acquiring a first difference value of the first gray scale value and the second gray scale value of any sub-pixel according to the first gray scale value and the second gray scale value of any sub-pixel;
when the value of the first difference value is larger than a first threshold value, the sub-pixel is a non-target sub-pixel;
when the value of the first difference is smaller than or equal to a first threshold, the sub-pixel is the target sub-pixel, and the target sub-pixel constitutes the target sub-pixel area;
acquiring position information of a target sub-pixel in the target compensation area according to the target compensation area;
the step of obtaining the gray scale compensation value of the reference sub-pixel adjacent to the target sub-pixel according to the position information of the target sub-pixel comprises the following steps:
acquiring the position information of a reference sub-pixel adjacent to the target sub-pixel according to the position information of the target sub-pixel;
and acquiring a gray scale compensation value of the reference sub-pixel according to the position information of the reference sub-pixel.
2. The compensation method for a display panel according to claim 1,
the step of obtaining a first gray scale value of any one sub-pixel in the target panel at a first gray scale and a second gray scale value at a second gray scale comprises the following steps:
electrifying the target panel to display the target panel;
shielding the target panel by using a first shielding object;
enabling any sub-pixel in the target panel to be in a first gray scale, and acquiring a first gray scale value of any sub-pixel in the target panel when the sub-pixel is in the first gray scale;
enabling any sub-pixel in the target panel to be in a second gray scale, and acquiring a second gray scale value of any sub-pixel in the target panel when the sub-pixel is in the second gray scale;
the first gray scale is one of a low gray scale and a high gray scale, and the second gray scale is the other of the low gray scale and the high gray scale, which is different from the first gray scale.
3. The compensation method for a display panel according to claim 1,
before the step of obtaining the gray-scale compensation value of the reference sub-pixel adjacent to the target sub-pixel according to the position information of the target sub-pixel, the method further comprises:
and acquiring the gray scale compensation value of any sub-pixel when the target panel is not shielded by the first shielding object.
4. The compensation device of the display panel is characterized by comprising a gray scale acquisition module, a judgment module, a first gray scale compensation acquisition module and a compensation module;
the gray scale acquisition module is used for acquiring a first gray scale value of any sub-pixel in the target panel when the sub-pixel is at a first gray scale and a second gray scale value of any sub-pixel in the target panel when the sub-pixel is at a second gray scale;
the judgment module is used for acquiring the position information of a target sub-pixel in a target compensation area of the target panel according to the first gray-scale value and the second gray-scale value, wherein the target compensation area is a special-shaped area, and the target sub-pixel is a sub-pixel located at the junction of a display area and a shielding area in the target panel;
the first gray scale compensation acquisition module is used for acquiring a gray scale compensation value of a reference sub-pixel adjacent to the target sub-pixel according to the position information of the target sub-pixel;
the compensation module is used for performing gray scale compensation on the target sub-pixel through the gray scale compensation value interpolation of the reference sub-pixel according to the gray scale compensation value of the reference sub-pixel; the judging module comprises a difference unit, a judging unit and a first position acquiring unit;
the difference unit is used for acquiring a first difference value of the first gray scale value and the second gray scale value of any sub-pixel according to the first gray scale value and the second gray scale value of any sub-pixel;
the judging unit is used for judging that the sub-pixel is a non-target sub-pixel when the value of the first difference value is larger than a first threshold value; when the value of the first difference is smaller than or equal to a first threshold, the sub-pixel is the target sub-pixel, and the target sub-pixel constitutes the target sub-pixel area;
the first position acquisition unit is used for acquiring the position information of a target sub-pixel in the target compensation area according to the target compensation area;
the first gray scale compensation acquisition module comprises a second position acquisition unit and a gray scale compensation acquisition unit;
the second position acquisition unit is used for acquiring the position information of the reference sub-pixel adjacent to the target sub-pixel according to the position information of the target sub-pixel;
the gray scale compensation obtaining unit is used for obtaining a gray scale compensation value of the reference sub-pixel according to the position information of the reference sub-pixel.
5. The compensation apparatus for a display panel according to claim 4, wherein the gray scale obtaining module comprises a power-on unit, a shielding unit, a first gray scale obtaining unit, and a second gray scale obtaining unit;
the power-on unit is used for powering on the target panel to display the target panel;
the shielding unit is used for shielding the target panel by using a first shielding object;
the first gray scale obtaining unit is used for enabling any sub-pixel in the target panel to be in a first gray scale and obtaining a first gray scale value of any sub-pixel in the target panel when the sub-pixel is in the first gray scale;
the second gray scale obtaining unit is used for enabling any sub-pixel in the target panel to be in a second gray scale and obtaining a second gray scale value of any sub-pixel in the target panel when the sub-pixel is in the second gray scale;
the first gray scale is one of a low gray scale and a high gray scale, and the second gray scale is the other of the low gray scale and the high gray scale, which is different from the first gray scale.
6. The compensation apparatus for a display panel according to claim 4, wherein the compensation apparatus for a display panel further comprises a second gray scale compensation obtaining module;
the second gray scale compensation acquisition module is used for acquiring a gray scale compensation value of any sub-pixel when the target panel is not shielded by the first shielding object.
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| CN112071246B (en) * | 2020-09-21 | 2023-03-21 | 云谷（固安）科技有限公司 | Method and device for positioning sub-pixels of display panel and compensation method of display panel |
| CN112542142B (en) * | 2020-12-02 | 2022-04-01 | Tcl华星光电技术有限公司 | Compensation method and compensation device of display panel |
| CN112562568B (en) * | 2020-12-23 | 2024-04-23 | 厦门天马微电子有限公司 | Driving method of display panel, display panel and display device |
| CN114765020B (en) * | 2021-01-14 | 2023-11-21 | 奇景光电股份有限公司 | Display device and light leakage compensation method thereof |
| CN113053308B (en) | 2021-03-18 | 2022-07-12 | 京东方科技集团股份有限公司 | Display method, display device, and computer-readable storage medium |
| CN113593494B (en) * | 2021-07-19 | 2022-07-12 | Tcl华星光电技术有限公司 | Display compensation method and device and display panel |
| CN113963672B (en) | 2021-11-05 | 2023-02-24 | 惠州华星光电显示有限公司 | Display brightness adjusting method and device, electronic equipment and storage medium |
| CN118197201A (en) * | 2022-12-14 | 2024-06-14 | 昆山国显光电有限公司 | Display panel compensation method, compensation device and display device |
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| KR102217170B1 (en) * | 2014-10-08 | 2021-02-18 | 엘지디스플레이 주식회사 | Orgainc emitting diode display device |
| US20160291376A1 (en) * | 2015-03-30 | 2016-10-06 | Innolux Corporation | Display device |
| CN107103865B (en) * | 2017-04-10 | 2020-12-15 | 海信视像科技股份有限公司 | Method and device for detecting display area in display screen |
| CN107479269B (en) * | 2017-08-25 | 2020-05-15 | 厦门天马微电子有限公司 | Special-shaped display panel and display device |
| KR102441479B1 (en) * | 2017-12-27 | 2022-09-13 | 삼성디스플레이 주식회사 | Display device and method of driving display device |
| CN108417174A (en) * | 2018-05-25 | 2018-08-17 | 京东方科技集团股份有限公司 | A kind of driving chip, the driving method of display panel, display device |
| CN108828817B (en) * | 2018-06-26 | 2021-07-09 | 上海中航光电子有限公司 | Display panel and display device |
| CN109256076B (en) * | 2018-08-30 | 2022-02-22 | 京东方科技集团股份有限公司 | Edge pixel display method, system, storage device and display device |
| CN209265123U (en) * | 2018-12-18 | 2019-08-16 | 昆山龙腾光电有限公司 | Special-shaped display panel and display device |
| WO2020177103A1 (en) * | 2019-03-06 | 2020-09-10 | 京东方科技集团股份有限公司 | Display compensation method, display compensation device, display device, and storage medium |
| CN110459584A (en) * | 2019-08-29 | 2019-11-15 | 云谷（固安）科技有限公司 | The preparation method of display panel, display device and display panel |
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