CN111415610B - Voltage regulation method of virtual pixel, display panel and storage medium - Google Patents
Voltage regulation method of virtual pixel, display panel and storage medium Download PDFInfo
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- CN111415610B CN111415610B CN202010337346.6A CN202010337346A CN111415610B CN 111415610 B CN111415610 B CN 111415610B CN 202010337346 A CN202010337346 A CN 202010337346A CN 111415610 B CN111415610 B CN 111415610B
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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
Abstract
The invention provides a voltage regulating method of a virtual pixel, a display panel and a storage medium, which judge whether the voltage data of the pixel of a display picture belong to the same gray-scale value or not by collecting the voltage data of the pixel of the display picture, and regulate the actual voltage value of the virtual pixel to the voltage value corresponding to the collected gray-scale value, thereby solving the problem that the charging is influenced by the edge row signal setting in the prior art to cause bright and dark lines. And when the picture is switched, the virtual pixel can be dynamically adjusted according to the detected change of the gray scale value.
Description
Technical Field
The invention relates to the technical field of display, in particular to a voltage regulation method of a virtual pixel, a display panel and a storage medium.
Background
As shown in fig. 1, a row of dummy pixels 10(dummy pixels) is added to each of the left and right edges of the panel, and the dummy pixels 10 do not function as a display, can access electrical signals, but cannot output the electrical signals. When a column inversion (column) driving mode is adopted, the data line signal of the edge column is set by the common electrode chip of the array substrate to provide a voltage signal for the virtual pixel 10, if a voltage corresponding to a fixed gray scale is adopted, the data signal of the edge column is inverted back and forth between a high voltage and a low voltage, and the data signal of the non-edge column is a direct current signal of the fixed voltage.
As shown in fig. 2, the data voltages are illustrated as 200 gray levels (even rows of pixels) and 128 gray levels (odd rows of pixels). When a pure gray scale picture is displayed, due to the delay of the signal in the panel, the signal of the high-low inversion has certain rising time 11(rising time) and falling time 12(falling time), and the influence on the pixel charging is large. When the potential of the virtual pixel set by the chip is higher than the gray scale displayed by the edge row, the display of the edge row pixel is slightly bright, namely, an edge bright red line is represented; when the set potential of the virtual pixel is lower than the gray scale displayed by the edge row, the edge row is darker, namely, the edge dark red line is represented, and for a large-size panel, the in-plane data signal delay is more serious, so that the edge bright and dark lines are more obvious.
Disclosure of Invention
The invention aims to provide a virtual pixel voltage adjusting method, a display panel and a storage medium, which can effectively solve the problems of edge bright and dark lines and the like by dynamically controlling the voltage of edge pixels.
To solve the above problem, the present invention provides a method for adjusting a voltage of a virtual pixel, including: a database establishing step, namely acquiring voltage data of all pixels in one frame of the display panel and storing the voltage data into a database; an acquisition step, wherein voltage data in the database are acquired; a first judgment step, namely judging whether the voltage of each pixel or the voltage of partial pixels in a frame corresponds to the same gray-scale value, if so, executing the next step; and a voltage setting step, setting the voltage value of the virtual pixel as the voltage corresponding to the gray-scale value.
Further, still include: a second judgment step of judging whether to switch the picture, and if so, circulating the database establishment step, the acquisition step, the first judgment step and the voltage setting step; if not, maintaining the voltage of the virtual pixel.
Further, in the first determining step, the partial pixels are column pixels near an edge of the virtual pixel.
Further, after the first determining step, the method further includes: and a third judgment step of judging whether the voltage of the partial pixel corresponds to the voltage corresponding to a gray scale interval, if so, executing the voltage setting step.
Further, the gray scale interval is 0-a or b-255, wherein b > a.
Further, before the database establishing step, the method further comprises: the method comprises a preparation step of providing the display panel and lightening a picture, wherein the display panel comprises a display area, rows of sub-pixels are distributed in the display area in an array mode, the color of each row of sub-pixels is the same, and a row of virtual pixels are arranged on two sides of the display area respectively.
The present invention also provides a display panel, which includes a voltage regulating system of a virtual pixel, the voltage regulating system of the virtual pixel includes: the database establishing unit is used for acquiring voltage data of all pixels in one frame of the display panel and storing the voltage data into a database; the acquisition unit is used for acquiring voltage data in the database; the first judging unit is used for judging whether the voltage of each pixel or the voltage of partial pixels in one frame corresponds to the same gray-scale value or not, and if so, executing the next step; and the voltage setting unit is used for setting the voltage value of the virtual pixel as the voltage corresponding to the gray-scale value.
Further, the voltage regulation system of the virtual pixel further includes: a second judgment unit that judges whether or not to switch the screen, and if so, circulates the database establishment step, the acquisition step, the first judgment step, and the voltage setting step; if not, maintaining the voltage of the virtual pixel.
Further, the database establishing unit, the collecting unit, the first judging unit and the voltage setting unit are integrated on a common electrode of an array substrate of the display panel.
The invention also provides a storage medium having a computer program stored thereon, which when executed by a processor is operable to implement the method.
The invention has the beneficial effects that: the invention provides a voltage regulating method of a virtual pixel, a display panel and a storage medium, which judge whether the voltage data of the pixel of a display picture belong to the same gray-scale value or not by collecting the voltage data of the pixel of the display picture, and regulate the actual voltage value of the virtual pixel to the voltage value corresponding to the collected gray-scale value, thereby solving the problem that the charging is influenced by the edge row signal setting in the prior art to cause bright and dark lines. And when the picture is switched, the virtual pixel can be dynamically adjusted according to the detected change of the gray scale value.
Drawings
FIG. 1 is a plan view of a prior art pixel arrangement;
FIG. 2 is a waveform diagram of a prior art data signal;
FIG. 3 is a flowchart of a method for adjusting the voltage of a dummy pixel according to an embodiment of the present invention;
FIG. 4 is a flow chart of a method for adjusting the voltage of a dummy pixel according to another embodiment of the present invention;
FIG. 5 is a functional block diagram of a voltage regulation system for a virtual pixel provided in accordance with the present invention.
Detailed Description
The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments of the invention which may be wet. Directional phrases used herein, such as, for example, upper, lower, front, rear, left, right, inner, outer, lateral, etc., refer only to the orientation of the accompanying drawings. The names of the elements, such as the first, the second, etc., mentioned in the present invention are only used for distinguishing different elements and can be better expressed. In the drawings, elements having similar structures are denoted by the same reference numerals.
Embodiments of the present invention will be described in detail herein with reference to the accompanying drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. The embodiments are provided to explain the practical application of the invention so as to enable others skilled in the art to understand the invention for various embodiments and with various modifications as are suited to the particular use contemplated.
As shown in fig. 3, an embodiment of the invention provides a method for adjusting a voltage of a dummy pixel, including the following steps S1-S7.
S1 step of preparing, providing a display panel and lighting up a picture, where the display panel includes a display area, the display panel is driven by column inversion, the display area includes column sub-pixels distributed in an array, the color of each column of sub-pixels is the same, and two sides of the display area are respectively provided with a column of virtual pixels.
And S2, establishing a database, namely acquiring the voltages of all pixels in one frame of the display panel and storing the voltages into the database.
And S3, collecting voltage data in the database.
S4 a first determining step, determining whether the voltage data of the voltage of each pixel in a frame corresponds to the same gray level, if so, executing the next step.
And step S5, setting the voltage value of the virtual pixel as the voltage corresponding to the gray-scale value.
S6, a second judgment step of judging whether to switch the screen, and if so, circulating the database establishing step, the collecting step, the first judgment step, and the voltage setting step; if not, maintaining the voltage of the virtual pixel.
An embodiment of the present invention provides a voltage adjustment method for a virtual pixel, which judges whether the pixels belong to the same gray scale value by collecting voltage data of the pixels of a display screen, and adjusts an actual voltage value of the virtual pixel to a voltage value corresponding to the collected gray scale value, thereby solving a problem that charging is influenced by edge row signal setting in the prior art, which results in bright and dark lines.
And when the picture is switched, the virtual pixel can be dynamically adjusted according to the detected change of the gray scale value.
As shown in fig. 4, a method for adjusting voltage of a dummy pixel according to another embodiment of the present invention includes steps S101 to S107, and is different from the previous embodiment in that in the first determining step, the voltage of the partial pixel is a pixel voltage near an edge column of the dummy pixel, steps S101 to S104 are the same as steps S1 to S4 of the previous embodiment, and steps S106 to S107 are the same as steps S5 to S6 of the previous embodiment.
After the first determining step of S104, the method further includes the following steps.
S105, a third judgment step of judging whether the voltage of the partial pixel corresponds to the voltage corresponding to a gray scale interval, if so, executing the voltage setting step.
The gray scale interval is 0-a or b-255, wherein b > a.
Another embodiment of the present invention provides a method for adjusting voltage of a virtual pixel, which judges whether the voltage data of the pixels in the edge row of the display frame belongs to gray-scale values in the same gray-scale region, and adjusts the actual voltage value of the virtual pixel to a voltage value corresponding to the acquired gray-scale value, thereby solving the problem of bright and dark lines caused by charging influenced by edge row signal setting in the prior art.
The voltage acquisition of another embodiment is partial acquisition, so for partial gray scale; while the voltage acquisition of one embodiment is for all pixels in a frame, it can be for all gray levels.
The invention also provides a display panel, the display panel is driven by column inversion, a display area of the display panel comprises sub-pixels distributed in an array, the color of each column of sub-pixels is the same, and two sides of the display area are respectively provided with a column of virtual pixels.
The display panel further comprises a voltage regulation system 200 of a virtual pixel, the voltage regulation system of the virtual pixel comprising: the device comprises a database establishing unit 201, a collecting unit 202, a first judging unit 203, a voltage setting unit 204 and a second judging unit 205.
The database establishing unit 201 is used for obtaining the voltages of all pixels in one frame of the display panel and storing the voltages into the database.
The acquisition unit 202 is used for acquiring voltage data in the database.
The first determining unit 203 is configured to determine whether the voltage of each pixel or the voltage of a portion of pixels in a frame corresponds to the same gray scale value, and if so, the voltage setting unit is switched to.
The voltage setting unit 204 is configured to set the voltage value of the dummy pixel to a voltage corresponding to the gray-scale value.
The second determining unit 205 is configured to determine whether to switch the image, and if so, loop the database establishing step, the collecting step, the first determining step, and the voltage setting step; if not, maintaining the voltage of the virtual pixel.
The database establishing unit 201, the collecting unit 202, the first determining unit 203, the voltage setting unit 204, and the second determining unit 206 are integrated on a common electrode of an array substrate of the display panel.
The invention provides a display panel which comprises a voltage regulating system of virtual pixels, wherein the system acquires voltage data of pixels of a display picture by controlling an acquisition unit, judges whether the voltage data belong to the same gray-scale value, and adjusts the actual voltage value of the virtual pixels to the voltage value corresponding to the acquired gray-scale value, so that the problem of bright and dark lines caused by influence of charging due to edge column signal setting in the prior art is solved.
And when the panel switches the picture, the virtual pixel can be dynamically adjusted according to the detected change of the gray scale value.
The present invention provides a storage medium having stored thereon a computer program enabling the implementation of the method described herein when executed by a processor.
The technical scope of the present invention is not limited to only the contents described in the above description, and those skilled in the art can make various changes and modifications to the embodiments without departing from the technical idea of the present invention, and these changes and modifications should fall within the scope of the present invention.
Claims (8)
1. A method for adjusting a voltage of a virtual pixel, comprising:
a database establishing step, namely acquiring voltage data of all pixels in one frame of the display panel and storing the voltage data into a database;
an acquisition step, wherein voltage data in the database are acquired;
a first judgment step, namely judging whether the voltage of each pixel or the voltage of partial pixels in a frame corresponds to the same gray-scale value, if so, executing the next step;
a voltage setting step, setting the voltage value of the virtual pixel as the voltage corresponding to the gray-scale value;
a second judgment step of judging whether to switch the picture, and if so, circulating the database establishment step, the acquisition step, the first judgment step and the voltage setting step; if not, maintaining the voltage of the virtual pixel.
2. The method of adjusting voltage of a dummy pixel according to claim 1,
in the first judging step, the partial pixels are column pixels near the edge of the virtual pixel.
3. The method for adjusting voltage of a dummy pixel according to claim 2, further comprising, after the first determining step:
and a third judgment step of judging whether the voltage of the partial pixel corresponds to the voltage corresponding to a gray scale interval, if so, executing the voltage setting step.
4. The method of claim 3, wherein the gray scale interval is 0-a or b-255, wherein b > a.
5. The method for adjusting voltage of a virtual pixel according to claim 1, further comprising, before the step of establishing the database:
the method comprises a preparation step of providing the display panel and lightening a picture, wherein the display panel comprises a display area, rows of sub-pixels are distributed in the display area in an array mode, the color of each row of sub-pixels is the same, and a row of virtual pixels are arranged on two sides of the display area respectively.
6. A display panel comprising a voltage regulation system for a virtual pixel, the voltage regulation system for the virtual pixel comprising:
the database establishing unit is used for acquiring voltage data of all pixels in one frame of the display panel and storing the voltage data into a database;
the acquisition unit is used for acquiring voltage data in the database;
the first judging unit is used for judging whether the voltage of each pixel or the voltage of partial pixels in one frame corresponds to the same gray-scale value or not, and if so, executing the next step;
the voltage setting unit is used for setting the voltage value of the virtual pixel as a voltage corresponding to the gray-scale value;
a second judgment unit that judges whether or not to switch the screen, and if so, circulates the database establishment step, the acquisition step, the first judgment step, and the voltage setting step; if not, maintaining the voltage of the virtual pixel.
7. The display panel according to claim 6,
the database establishing unit, the collecting unit, the first judging unit and the voltage setting unit are integrated on a common electrode of an array substrate of the display panel.
8. A storage medium having a computer program stored thereon, the computer program when executed by a processor being operable to implement the method of any of claims 1 to 5.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010337346.6A CN111415610B (en) | 2020-04-26 | 2020-04-26 | Voltage regulation method of virtual pixel, display panel and storage medium |
| PCT/CN2020/089550 WO2021217712A1 (en) | 2020-04-26 | 2020-05-11 | Dummy pixel voltage adjusting method, display panel, and storage medium |
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| CN202010337346.6A CN111415610B (en) | 2020-04-26 | 2020-04-26 | Voltage regulation method of virtual pixel, display panel and storage medium |
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| CN111415610A CN111415610A (en) | 2020-07-14 |
| CN111415610B true CN111415610B (en) | 2021-07-23 |
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| CN115064117B (en) * | 2022-08-18 | 2022-11-01 | 长春希达电子技术有限公司 | Virtual pixel display screen brightness correction method, system and device and display system |
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| WO2021217712A1 (en) | 2021-11-04 |
| CN111415610A (en) | 2020-07-14 |
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