CN111816135B - Driving voltage compensation method, compensation device and display device - Google Patents
Driving voltage compensation method, compensation device and display device Download PDFInfo
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- CN111816135B CN111816135B CN202010792626.6A CN202010792626A CN111816135B CN 111816135 B CN111816135 B CN 111816135B CN 202010792626 A CN202010792626 A CN 202010792626A CN 111816135 B CN111816135 B CN 111816135B
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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
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
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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
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3614—Control of polarity reversal in general
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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
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3696—Generation of voltages supplied to electrode drivers
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Abstract
The invention provides a driving circuitThe pressure compensation method, the compensation device and the display device comprise the following steps: obtaining compensation pixels on a display panel, the compensation pixels comprising: a first pixel set and a second pixel set, the first pixel is positioned as (a)i,bi) Wherein a isi＝a1+k*i，bi＝b1+ m × i, the second pixel set and the first pixel set are distributed in axial symmetry; aiming at each compensation pixel, converting the target gray scale value of the compensation pixel into a first gray scale voltage, and finding out a compensation voltage corresponding to the first gray scale voltage from a corresponding voltage compensation table, wherein the voltage compensation table comprises all the gray scale voltages and the compensation voltage corresponding to each gray scale voltage; and determining the final gray scale voltage of each compensation pixel according to the first gray scale voltage and the compensation voltage corresponding to the first gray scale voltage, and inputting the final gray scale voltage to the compensation pixels. The problem of the screen circuit that the position adjustment of gate driver to source gate driver homonymy caused walks the line change, leads to display panel display performance to worsen is solved.
Description
Technical Field
The embodiment of the invention relates to the field of integrated circuit design, in particular to a driving voltage compensation method, a compensation device and a display device.
Background
The market of LCD displays (Liquid Crystal displays) is competitive, and all manufacturers strive to improve various performances and maximize performance indexes. In the manufacture of LCDs, a portion of the non-display area needs to be reserved around the display panel for circuit arrangement and structural strength. These non-display areas are important sources of the frame of the display module, and various manufacturers strive to reduce the size of the frame. However, due to the production process, it is impossible to completely eliminate the peripheral frame.
One of the important reasons is that a TFT-LCD (Thin film transistor liquid crystal display) requires a control gate driver, which is usually disposed at the left edge of a screen glass substrate, and has to occupy a part of the space. In order to reduce this space, developers have arranged the IC (Integrated Circuit) at the lower edge of the display screen, and although not completely eliminating all of the edge space, the reduction of the upper, left, and right edges can be achieved. However, the problem is that the circuit traces in the display screen for controlling the TFT (Thin film transistor) switches must be adjusted accordingly due to the IC position change. The varied screen routing affects the display performance of the relevant position, and causes the problem of uneven display.
Disclosure of Invention
The embodiment of the invention provides a driving voltage compensation method, a compensation device and a display device, and aims to solve the problem that display performance of partial positions of a display panel is poor due to change of screen circuit routing caused by adjusting the position of a gate driver to the same side of a source gate driver.
In order to solve the technical problem, the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a driving voltage compensation method, which is applied to a display device, where the display device includes a display panel, a gate driver, and a source driver; the grid driver is positioned on the intersection point of the bottom edge of the display panel and the central axis, and the source driver and the grid driver are arranged on the same side; the display panel includes a plurality of pixels arranged in a matrix manner, including:
obtaining compensation pixels on the display panel, the compensation pixels comprising: a first set of pixels and a second set of pixels, the first pixel being located at (a)i,bi) Wherein a isi＝a1+k*i，bi＝b1+ m + i, wherein, a1For the first compensating imageLine in which element is located, b1K and m are positive integers, i is 1, 2, 3 … …, which is the column where the first compensation pixel is located; the second pixel set and the first pixel set are distributed in an axial symmetry mode, a symmetry axis is a central axis of the display panel, and the central axis is perpendicular to the bottom edge of the display device;
for each compensation pixel, converting the target gray scale value of the compensation pixel into a first gray scale voltage, and finding out a compensation voltage corresponding to the first gray scale voltage from a corresponding voltage compensation table, wherein the voltage compensation table comprises all gray scale voltages and the compensation voltage corresponding to each gray scale voltage;
and determining the final gray scale voltage of each compensation pixel according to the first gray scale voltage and the compensation voltage corresponding to the first gray scale voltage, and inputting the final gray scale voltage to the compensation pixels.
Optionally, each gray scale voltage of the voltage compensation table corresponds to a different compensation voltage. Optionally, the voltage compensation table includes a positive polarity voltage compensation table and a negative polarity voltage compensation table;
the finding of the compensation voltage corresponding to the first gray scale voltage from the corresponding voltage compensation table includes:
if the first gray scale voltage is positive polarity, finding out the compensation voltage corresponding to the first gray scale voltage from the corresponding positive polarity voltage compensation table;
if the first gray scale voltage is negative, the compensation voltage corresponding to the first gray scale voltage is found from the corresponding negative voltage compensation table.
Optionally, the method includes N voltage compensation tables, where each voltage compensation table corresponds to at least one compensation pixel, the voltage compensation table to which the compensation pixel belongs is determined according to a distance between the compensation pixel and the gate driver, and N is a positive integer greater than or equal to 2. Optionally, the determining a final grayscale voltage of each compensation pixel according to the first grayscale voltage and the compensation voltage corresponding to the first grayscale voltage, and inputting the final grayscale voltage to the compensation pixel further includes:
and selecting a target pixel for driving voltage compensation, wherein the target pixel is an adjacent pixel of the compensation pixel.
Optionally, the selecting a target pixel for driving voltage compensation includes:
converting the target gray scale value of the target pixel into a second gray scale voltage, and finding out a compensation voltage corresponding to the second gray scale voltage from a corresponding voltage compensation table, wherein the voltage compensation table comprises all gray scale voltages and a compensation voltage corresponding to each gray scale voltage;
and determining the final gray scale voltage of each target pixel according to the second gray scale voltage and the compensation voltage corresponding to the second gray scale voltage, and inputting the final gray scale voltage to the target pixels.
In a second aspect, an embodiment of the present invention provides a driving voltage compensation apparatus, which is applied to a display apparatus, where the display apparatus includes a display panel, a gate driver, and a source driver; the grid driver is positioned on the intersection point of the bottom edge of the display panel and the central axis, and the source driver and the grid driver are arranged on the same side; the display panel includes a plurality of pixels arranged in a matrix manner, including:
an obtaining module 301, configured to obtain a compensation pixel on the display panel, where the compensation pixel includes: a first set of pixels and a second set of pixels, the first pixel being located at (a)i,bi) Wherein a isi＝a1+k*i，bi＝b1+ m + i, wherein, a1For the row in which the first compensation pixel is located, b1K and m are positive integers, i is 1, 2, 3 … …, which is the column where the first compensation pixel is located; the second pixel set and the first pixel set are distributed in an axial symmetry mode, a symmetry axis is a central axis of the display panel, and the central axis is perpendicular to the bottom edge of the display device;
the search module is used for converting the target gray scale value of the compensation pixel into a first gray scale voltage aiming at each compensation pixel, and searching a compensation voltage corresponding to the first gray scale voltage from a corresponding voltage compensation table, wherein the voltage compensation table comprises all the gray scale voltages and the compensation voltage corresponding to each gray scale voltage;
and the output module is used for determining the final gray scale voltage of each compensation pixel according to the first gray scale voltage and the compensation voltage corresponding to the first gray scale voltage, and inputting the final gray scale voltage to the compensation pixels.
In a third aspect, an embodiment of the present invention provides a display device, including the driving voltage compensation device according to the second aspect of the claims.
In a fourth aspect, an embodiment of the present invention provides an electronic device, including a processor, a memory, and a program or instructions stored on the memory and executable on the processor, where the program or instructions, when executed by the processor, implement the steps of the driving voltage compensation method according to any one of the first aspect.
In a fifth aspect, the embodiment of the present invention provides a readable storage medium, on which a program or an instruction is stored, and the program or the instruction, when executed by a processor, implements the steps of the driving voltage compensation method according to any one of the first aspect.
In the embodiment of the invention, the compensation pixels are selected, the first gray scale voltage of each compensation pixel is determined according to the gray scale value of each compensation pixel, and the final gray scale voltage of each compensation pixel is determined and input to the corresponding compensation pixel according to the first gray scale voltage and the compensation voltage corresponding to the first gray scale voltage in the voltage compensation table, so that the problem that the display performance of the position of the display panel is poor due to the fact that the routing of the screen circuit is changed because the position of the gate driver is adjusted to the same side of the source gate driver is solved.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic flow chart illustrating a driving voltage compensation method according to an embodiment of the invention;
fig. 2 is a schematic diagram of a position of a partially compensated pixel under a driving voltage compensation method according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a driving voltage compensation device applied to a display device according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. 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 invention.
Fig. 1 is a schematic flow chart illustrating a driving voltage compensation method according to an embodiment of the invention;
the invention provides a driving voltage compensation method, which is applied to a display device, wherein the display device comprises a display panel, a grid driver and a source driver; the grid driver is positioned on the intersection point of the bottom edge of the display panel and the central axis, and the source driver and the grid driver are arranged on the same side; the display panel includes a plurality of pixels arranged in a matrix manner, including:
step 11: obtaining compensation pixels on the display panel, the compensation pixels comprising: a first set of pixels and a second set of pixels, the first pixel being located at (a)i,bi) Wherein a isi＝a1+k*i，bi＝b1+ m + i, wherein, a1For the row in which the first compensation pixel is located, b1K and m are positive integers, i is 1, 2, 3 … …, which is the column where the first compensation pixel is located; the second pixel set and the first pixel set are distributed in an axial symmetry mode, the symmetry axis is the central axis of the display panel, and the second pixel set and the first pixel set are distributed in an axial symmetry modeThe central axis is vertical to the bottom edge of the display device;
suppose that the pixel coordinate (0, 0) corresponding to the upper left corner of the display panel, at this time, a1＝0+k*1，b10+ m 1, where the coordinates of the first compensation pixel at this time are (k, m); at this time, the position of the first pixel is (a)i,bi)，ai＝k*(i+1),biM (i + 1); k. m is determined according to the characteristics of the display panel, such as the structural design, resolution, and aperture ratio of each pixel of the display panel.
Step 12: for each compensation pixel, converting the target gray scale value of the compensation pixel into a first gray scale voltage, and finding out a compensation voltage corresponding to the first gray scale voltage from a corresponding voltage compensation table, wherein the voltage compensation table comprises all gray scale voltages and the compensation voltage corresponding to each gray scale voltage;
step 13: and determining the final gray scale voltage of each compensation pixel according to the first gray scale voltage and the compensation voltage corresponding to the first gray scale voltage, and inputting the final gray scale voltage to the compensation pixels.
In some embodiments of the present invention, optionally, the compensation voltage of each pixel is found by querying a voltage compensation table, the compensation voltage of each pixel is determined by a gray-scale value of the pixel, and the voltage compensation tables corresponding to the pixels at different positions are different.
If k is 8 and m is 9 according to the display panel related parameters, the horizontal coordinates of the compensation pixels in the first set are arranged in the horizontal direction in a period of 8 pixels, and the vertical coordinates are arranged in the vertical direction in a period of 9 pixels.
In the embodiment of the invention, the compensation pixels are selected, the first gray scale voltage of each compensation pixel is determined according to the gray scale value of each compensation pixel, and the final gray scale voltage of each compensation pixel is determined and input to the corresponding compensation pixel according to the first gray scale voltage and the compensation voltage corresponding to the first gray scale voltage in the voltage compensation table, so that the problem that the display performance of the position of the display panel is poor due to the fact that the routing of the screen circuit is changed because the position of the gate driver is adjusted to the same side of the source gate driver is solved.
In some embodiments of the present invention, optionally, each gray scale voltage of the voltage compensation table corresponds to a different compensation voltage.
In the embodiment of the invention, each gray scale voltage in the voltage compensation table corresponds to a different compensation voltage.
In some embodiments of the present invention, optionally, the voltage compensation table includes a positive polarity voltage compensation table and a negative polarity voltage compensation table;
the finding of the compensation voltage corresponding to the first gray scale voltage from the corresponding voltage compensation table includes:
if the first gray scale voltage is positive polarity, finding out the compensation voltage corresponding to the first gray scale voltage from the corresponding positive polarity voltage compensation table;
if the first gray scale voltage is negative, the compensation voltage corresponding to the first gray scale voltage is found from the corresponding negative voltage compensation table.
In the embodiment of the invention, the display needs to alternately send positive and negative voltages to realize normal display, and the voltage compensation table prestored in the time schedule controller comprises a positive polarity voltage compensation table and a negative polarity voltage compensation table; if the first gray scale voltage of the compensation pixel is positive polarity, finding out the compensation voltage corresponding to the first gray scale voltage from the corresponding positive polarity voltage compensation table; if the first gray scale voltage of the compensation pixel is negative polarity, finding out the compensation voltage corresponding to the first gray scale voltage from the corresponding negative polarity voltage compensation table; the positive and negative polarity voltage compensation table optimizes the driving voltage compensation scheme, and the driving voltage compensation of the compensation pixel can be well realized through the preset positive and negative polarity voltage compensation table.
In some embodiments of the present invention, optionally, the present invention includes N voltage compensation tables, where each of the voltage compensation tables corresponds to at least one compensation pixel, the voltage compensation table to which the compensation pixel belongs is determined according to a distance between the compensation pixel and the gate driver, and N is a positive integer greater than or equal to 2.
In some embodiments of the present invention, optionally, the determining, according to the distance between the compensation pixel and the gate driver, the voltage compensation table to which the compensation pixel belongs may correspond to one voltage compensation table for each pixel at different positions, that is, N compensation pixels correspond to N voltage compensation tables; or the pixels in the same area correspond to a voltage compensation table for limiting the area of the display panel; the method can also be realized by searching a voltage compensation table which stores all compensation pixel positions and different compensation voltages under different gray-scale values based on the positions.
In some embodiments of the present invention, optionally, the compensation pixel position includes, but is not limited to, a distance between the compensation pixel and the gate driver or a specific compensation pixel coordinate.
Referring to fig. 2, fig. 2 is a schematic diagram of a position of a partially compensated pixel under a driving voltage compensation method according to a second embodiment of the present invention;
if the first compensation pixel is located in the row a13, column b in which the first compensation pixel is located1When k is 1, k is 2, and b is 1, the position of the first pixel is (a)i,bi) Wherein a isi＝3+2*i，bi1+1 × i, i ═ 1, 2, 3 … …; the second pixel set and the first pixel set are distributed in an axial symmetry mode, and a symmetry axis is a central axis of the display panel and is perpendicular to the bottom edge of the display device.
When the display panel size is 8 × 41, the coordinates of the first pixel set are assumed to be (3,1), (6,2), (9, 3), (10, 4), (12, 5), (15, 6), (18, 7), and (21, 8);
when N is 2, the display panel is divided into two parts along a median line parallel to the bottom edge to obtain 2 sub-display panels with the same shape and the same area, the sub-display panel far away from the bottom edge is marked as a first sub-display panel, and the sub-display panel close to the bottom edge is marked as a second sub-display panel;
and recording a voltage compensation table corresponding to the compensation pixels in the first sub-display panel as a first voltage compensation table, wherein the first sub-display panel comprises 4 × 2 compensation pixels including a first pixel set (3,1), (6,2), (9, 3), (10, 4) and a second pixel set which is symmetrical to the second pixel in a vertical axis manner, and when the compensation pixels in the first sub-display panel are subjected to driving voltage pixel compensation, the compensation voltages corresponding to the first gray scale voltages are found out from the corresponding first voltage compensation table.
And recording a voltage compensation table corresponding to the compensation pixels in the second sub-display panel as a second voltage compensation table, and searching the compensation voltage corresponding to the first gray scale voltage in the corresponding second voltage compensation table when performing driving voltage pixel compensation on the compensation pixels falling in the second sub-display panel.
In fig. 2, the number of compensation pixels is 15, and when N is 15, the compensation pixels include 15 voltage compensation tables, each compensation pixel corresponds to a specific voltage compensation table, and when the compensation pixels are subjected to driving voltage pixel compensation, the compensation voltage corresponding to the first grayscale voltage is found from the specific voltage compensation table of each compensation pixel. Wherein the compensation voltage in the voltage compensation table is related to the distance between the compensation pixel and the gate driver.
In the embodiment of the invention, the compensation pixels at different positions determine a specific voltage compensation table according to the distance between the compensation pixels and the gate driver to implement driving voltage compensation, and the charging difference caused by the far end and the near end of the same display panel is avoided.
In some embodiments of the present invention, optionally, after determining the final grayscale voltage of each compensation pixel according to the first grayscale voltage and the compensation voltage corresponding to the first grayscale voltage, and inputting the final grayscale voltage to the compensation pixel, the method further includes:
and selecting a target pixel for driving voltage compensation, wherein the target pixel is an adjacent pixel of the compensation pixel.
In some embodiments of the present invention, optionally, if the compensation pixel is a B pixel, the target pixel may be a G pixel; if the compensation pixel is an R pixel, the target pixel may be a B pixel.
In some embodiments of the present invention, optionally, the adjacent pixels are one or more.
In the embodiment of the invention, the whole display effect of the display panel is optimized by carrying out independent compensation on one or more compensation pixel adjacent pixels.
In some embodiments of the present invention, optionally, the selecting the target pixel for driving voltage compensation includes:
converting the target gray scale value of the target pixel into a second gray scale voltage, and finding out a compensation voltage corresponding to the second gray scale voltage from a corresponding voltage compensation table, wherein the voltage compensation table comprises all gray scale voltages and a compensation voltage corresponding to each gray scale voltage;
and determining the final gray scale voltage of each target pixel according to the second gray scale voltage and the compensation voltage corresponding to the second gray scale voltage, and inputting the final gray scale voltage to the target pixels.
In the embodiment of the invention, the voltage compensation table corresponding to the target pixel is stored in advance, and the individual compensation is carried out on one or more adjacent pixels of the compensation pixel, so that the overall display effect of the display panel is optimized.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a driving voltage compensation device applied to a display device according to a third embodiment of the present invention;
the invention provides a driving voltage compensation device 3, which is applied to a display device 4, wherein the display device 4 comprises a display panel 201, a gate driver 202 and a source driver 203; the gate driver 202 is located at an intersection of the bottom edge of the display panel 201 and the central axis, and the source driver 203 is disposed on the same side as the gate driver 202; the display panel 201 includes a plurality of pixels arranged in a matrix manner, including:
an obtaining module 301, configured to obtain a compensation pixel on the display panel, where the compensation pixel includes: a first set of pixels and a second set of pixels, the first pixel being located at (a)i,bi) Wherein a isi＝a1+k*i，bi＝b1+ m + i, wherein, a1For the row in which the first compensation pixel is located, b1K and m are positive integers for the column where the first compensation pixel is locatedI ═ 1, 2, 3 … …; the second pixel set and the first pixel set are distributed in an axial symmetry mode, a symmetry axis is a central axis of the display panel, and the central axis is perpendicular to the bottom edge of the display device;
a searching module 302, configured to convert the target gray scale value of the compensation pixel into a first gray scale voltage for each compensation pixel, and search a compensation voltage corresponding to the first gray scale voltage from a corresponding voltage compensation table, where the voltage compensation table includes all gray scale voltages and a compensation voltage corresponding to each gray scale voltage;
the output module 303 is configured to determine a final gray scale voltage of each compensation pixel according to the first gray scale voltage and the compensation voltage corresponding to the first gray scale voltage, and input the final gray scale voltage to the compensation pixel.
In the embodiment of the invention, the driving voltage compensation device determines the first gray scale voltage according to the gray scale value of each compensation pixel by selecting the compensation pixel, determines and inputs the final gray scale voltage of each compensation pixel to the corresponding compensation pixel according to the first gray scale voltage and the compensation voltage corresponding to the first gray scale voltage in the voltage compensation table, and solves the problem that the display performance of partial positions of the display panel is deteriorated due to the routing change of a screen circuit caused by adjusting the position of the gate driver to the same side of the source gate driver.
Referring to fig. 3, the present invention further provides a display device 4 including the driving voltage compensation device 3 according to any of the above embodiments.
In the embodiment of the invention, the display device determines the first gray scale voltage according to the gray scale value of each compensation pixel by selecting the compensation pixel, determines and inputs the final gray scale voltage of each compensation pixel to the corresponding compensation pixel according to the first gray scale voltage and the compensation voltage corresponding to the first gray scale voltage in the voltage compensation table, and solves the problem that the display performance of the position of the display panel is poor due to the routing change of a screen circuit caused by adjusting the position of a gate driver to the same side of a source gate driver.
Referring to fig. 4, fig. 4 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present invention;
the present invention further provides an electronic device 500, which includes a processor 501, a memory 502, and a program or an instruction stored in the memory and executable on the processor, wherein the program or the instruction, when executed by the processor, implements each process of the driving voltage compensation method according to any of the above embodiments, and can achieve the same technical effect, and therefore, for avoiding repetition, the details are not repeated herein.
The present invention further provides a readable storage medium, where a program or an instruction is stored, and when the program or the instruction is executed by a processor, the method implements each process of the driving voltage compensation method according to any of the above embodiments, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
The readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A driving voltage compensation method is applied to a display device, and the display device comprises a display panel, a grid driver and a source driver; the grid driver is positioned on the intersection point of the bottom edge of the display panel and the central axis, and the source driver and the grid driver are arranged on the same side; the display panel includes a plurality of pixels arranged in a matrix manner, and is characterized by including:
obtaining compensation pixels on the display panel, the compensation pixels comprising: a first set of pixels and a second set of pixels, the location of the first pixelIs (a)i,bi) Wherein a isi＝a1+k*i，bi＝b1+ m + i, wherein, a1For the row in which the first compensation pixel is located, b1K and m are positive integers, i is 1, 2, 3 … …, which is the column where the first compensation pixel is located; the second pixel set and the first pixel set are distributed in an axial symmetry mode, a symmetry axis is a central axis of the display panel, and the central axis is perpendicular to the bottom edge of the display device;
for each compensation pixel, converting the target gray scale value of the compensation pixel into a first gray scale voltage, and finding out a compensation voltage corresponding to the first gray scale voltage from a corresponding voltage compensation table, wherein the voltage compensation table comprises all gray scale voltages and the compensation voltage corresponding to each gray scale voltage;
and determining the final gray scale voltage of each compensation pixel according to the first gray scale voltage and the compensation voltage corresponding to the first gray scale voltage, and inputting the final gray scale voltage to the compensation pixels.
2. The drive voltage compensation method according to claim 1,
each gray scale voltage of the voltage compensation table corresponds to different compensation voltages.
3. The drive voltage compensation method according to claim 1,
the voltage compensation table comprises a positive polarity voltage compensation table and a negative polarity voltage compensation table;
the finding of the compensation voltage corresponding to the first gray scale voltage from the corresponding voltage compensation table includes:
if the first gray scale voltage is positive polarity, finding out the compensation voltage corresponding to the first gray scale voltage from the corresponding positive polarity voltage compensation table;
if the first gray scale voltage is negative, the compensation voltage corresponding to the first gray scale voltage is found from the corresponding negative voltage compensation table.
4. The drive voltage compensation method according to claim 1,
the method comprises N voltage compensation tables, wherein each voltage compensation table corresponds to at least one compensation pixel, the voltage compensation table to which the compensation pixel belongs is determined according to the distance between the compensation pixel and the gate driver, and N is a positive integer greater than or equal to 2.
5. The driving voltage compensation method of claim 1, wherein the determining a final gray scale voltage of each compensation pixel according to the first gray scale voltage and the compensation voltage corresponding to the first gray scale voltage, and inputting the final gray scale voltage to the compensation pixel further comprises:
and selecting a target pixel for driving voltage compensation, wherein the target pixel is an adjacent pixel of the compensation pixel.
6. The driving voltage compensation method of claim 5, wherein the selecting the target pixel for driving voltage compensation comprises:
converting the target gray scale value of the target pixel into a second gray scale voltage, and finding out a compensation voltage corresponding to the second gray scale voltage from a corresponding voltage compensation table, wherein the voltage compensation table comprises all gray scale voltages and a compensation voltage corresponding to each gray scale voltage;
and determining the final gray scale voltage of each target pixel according to the second gray scale voltage and the compensation voltage corresponding to the second gray scale voltage, and inputting the final gray scale voltage to the target pixels.
7. A driving voltage compensation device is applied to a display device, and the display device comprises a display panel, a grid driver and a source driver; the grid driver is positioned on the intersection point of the bottom edge of the display panel and the central axis, and the source driver and the grid driver are arranged on the same side; the display panel includes a plurality of pixels arranged in a matrix manner, and is characterized by including:
an obtaining module, configured to obtain a compensation pixel on the display panel, where the compensation pixel includes: a first set of pixels and a second set of pixels, the first pixel being located at (a)i,bi) Wherein a isi＝a1+k*i，bi＝b1+ m + i, wherein, a1For the row in which the first compensation pixel is located, b1K and m are positive integers, i is 1, 2, 3 … …, which is the column where the first compensation pixel is located; the second pixel set and the first pixel set are distributed in an axial symmetry mode, a symmetry axis is a central axis of the display panel, and the central axis is perpendicular to the bottom edge of the display device;
the search module is used for converting the target gray scale value of the compensation pixel into a first gray scale voltage aiming at each compensation pixel, and searching a compensation voltage corresponding to the first gray scale voltage from a corresponding voltage compensation table, wherein the voltage compensation table comprises all the gray scale voltages and the compensation voltage corresponding to each gray scale voltage;
and the output module is used for determining the final gray scale voltage of each compensation pixel according to the first gray scale voltage and the compensation voltage corresponding to the first gray scale voltage, and inputting the final gray scale voltage to the compensation pixels.
8. A display device characterized by comprising the driving voltage compensation device according to claim 7.
9. An electronic device comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing the steps of the drive voltage compensation method according to any one of claims 1 to 6.
10. A readable storage medium, on which a program or instructions are stored, which when executed by a processor implement the steps of the drive voltage compensation method according to any one of claims 1 to 6.
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| CN202010792626.6A CN111816135B (en) | 2020-08-09 | 2020-08-09 | Driving voltage compensation method, compensation device and display device |
| PCT/CN2021/097932 WO2022033133A1 (en) | 2020-08-09 | 2021-06-02 | Driving voltage compensation method, driving voltage compensation apparatus, and display apparatus |
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