CN109817181B - Display driving method and mobile terminal - Google Patents
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- CN109817181B CN109817181B CN201910253452.3A CN201910253452A CN109817181B CN 109817181 B CN109817181 B CN 109817181B CN 201910253452 A CN201910253452 A CN 201910253452A CN 109817181 B CN109817181 B CN 109817181B
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Abstract
The invention relates to the technical field of display, and provides a display driving method and a mobile terminal, wherein the mobile terminal comprises an image processing chip, a display driving chip and a memory, and the method comprises the following steps: the image processing chip stores first image data and second image data in a frame of image picture at different storage positions of a memory, wherein the first image data is image data corresponding to a first type of sub-pixels, and the second image data is image data corresponding to a second type of sub-pixels; the display driving chip reads the first image data and scans the first type of sub-pixels line by line; the display driving chip reads the second image data and scans the second type of sub-pixels line by line; the first type of sub-pixels are odd-row sub-pixels, and the second type of sub-pixels are even-row sub-pixels; or, the first-class sub-pixels are even-row sub-pixels, and the second-class sub-pixels are odd-row sub-pixels.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a display driving method and a mobile terminal.
Background
At present, the mobile terminal adopts a Dual Gate Panel (Dual Gate Panel) to reduce the volume of the display driving chip, so that the Dual Gate Panel is more and more widely applied. The mobile terminal comprises a display driving chip and a plurality of sub-pixel groups, when the double-grid-line panel is adopted, each sub-pixel group comprises two adjacent sub-pixels, and all the sub-pixels are arranged in a multi-row and multi-column shape. The mobile terminal also comprises a plurality of source electrode data lines and a plurality of pairs of grid electrode scanning lines which are connected with the display driving chip, wherein each pair of grid electrode scanning lines comprises an odd-numbered grid electrode scanning line and an even-numbered grid electrode scanning line. The sub-pixel electrodes of the sub-pixels in the same column are connected to the same source data line, and the sub-pixel electrodes of the two sub-pixels in the same sub-pixel group are connected to the same source data line and different grid scanning lines in the same pair of grid scanning lines.
In the prior art, a mobile terminal adopts a line-by-line scanning mode for all sub-pixel points, when the mobile terminal adopts a double-grid-line Panel, data scanning of sub-pixels of a frame of image picture is completed in a column-turning scanning mode, and the positive and negative change frequency of the voltage on each source electrode data line of a Dual Gate Panel is large, so that the power consumption of the mobile terminal is high.
Disclosure of Invention
The embodiment of the invention provides a display driving method and a mobile terminal, and aims to solve the problem that in the prior art, when a double-grid-line Panel is in a column inversion scanning mode, the power consumption of the mobile terminal is high due to the fact that the positive and negative change frequency of the voltage on each source data line of a Dual Gate Panel is high.
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 display driving method, which is applied to a mobile terminal, where the mobile terminal includes an image processing chip, a display driving chip, and a memory, and the method includes:
the image processing chip stores first image data and second image data in a frame of image picture at different storage positions of the memory, wherein the first image data is image data corresponding to a first type of sub-pixels, and the second image data is image data corresponding to a second type of sub-pixels;
the display driving chip reads the first image data and scans the first type of sub-pixels line by line;
the display driving chip reads the second image data and scans the second type of sub-pixels line by line;
the first-type sub-pixels are odd-row sub-pixels, and the second-type sub-pixels are even-row sub-pixels; or, the first-type sub-pixels are even-row sub-pixels, and the second-type sub-pixels are odd-row sub-pixels.
In a second aspect, an embodiment of the present invention provides a mobile terminal, where the mobile terminal includes an image processing chip, a display driving chip, and a memory, where the image processing chip is configured to store first image data and second image data in a frame of image picture at different storage locations of the memory, where the first image data is image data corresponding to a first type of sub-pixels, and the second image data is image data corresponding to a second type of sub-pixels;
the display driving chip is used for reading the first image data and scanning the first type of sub-pixels line by line; reading the second image data, and scanning the second type of sub-pixels line by line;
the first-type sub-pixels are odd-row sub-pixels, and the second-type sub-pixels are even-row sub-pixels; or, the first-type sub-pixels are even-row sub-pixels, and the second-type sub-pixels are odd-row sub-pixels.
In a third aspect, an embodiment of the present invention further provides a mobile terminal, where the mobile terminal includes a processor, a memory, and a computer program stored in the memory and capable of running on the processor, and when the computer program is executed by the processor, the steps of the display driving method according to the first aspect are implemented.
In a fourth aspect, the present invention further provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the computer program implements the steps of the display driving method according to the first aspect.
In the embodiment of the present invention, the image processing chip stores first image data and second image data in a frame of image picture in different storage locations of the memory, where the first image data is image data corresponding to a first type of sub-pixels, and the second image data is image data corresponding to a second type of sub-pixels; the display driving chip reads the first image data and scans the first type of sub-pixels line by line; the display driving chip reads the second image data, scans the second type of sub-pixels line by line, and in the display time of a frame of image picture, the polarities of the driving voltage signals on the first type of sub-pixels are the same in a column inversion scanning mode, and the polarities of the driving voltage signals on the second type of sub-pixels are the same, so that the positive and negative change frequency of the voltage on each source electrode data line in the frame of image picture is reduced by adopting the mobile terminal of the double-grid-line panel, the power consumption of the display driving chip can be reduced, and the power consumption of the mobile terminal can be reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a dual-gate panel according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a display driving method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a mobile terminal provided in the prior art;
fig. 4 is a second schematic flowchart of a display driving method according to an embodiment of the invention;
FIG. 5 is a diagram illustrating a structure of a frame of image data according to an embodiment of the present invention;
FIG. 6 is a second schematic diagram illustrating a structure of a frame of image data according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a mobile phone system storing a frame of image data according to an embodiment of the present invention;
fig. 9 is a schematic diagram of a communication between a mobile phone system and a display driver chip according to an embodiment of the present invention;
FIG. 10 is a timing diagram illustrating internal logic control of a display driver chip according to an embodiment of the present invention;
fig. 11 is a timing diagram illustrating progressive scanning of a display driver chip according to an embodiment of the present invention;
fig. 12 is a second schematic structural diagram of a mobile terminal according to an 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.
In the embodiment of the invention, the mobile terminal adopts a double-grid-line panel, and comprises a display driving chip and a plurality of sub-pixel groups, wherein each sub-pixel group comprises two adjacent sub-pixels, and all the sub-pixels are arranged in a plurality of rows and columns. The mobile terminal also comprises a plurality of source electrode data lines and a plurality of pairs of grid electrode scanning lines which are connected with the display driving chip, wherein each pair of grid electrode scanning lines comprises an odd-numbered grid electrode scanning line and an even-numbered grid electrode scanning line. The sub-pixel electrodes of the sub-pixels in the same column are connected to the same source data line, and the sub-pixel electrodes of the two sub-pixels in the same sub-pixel group are connected to the same source data line and different grid scanning lines in the same pair of grid scanning lines. The sub-pixels connected with the odd-numbered gate scanning lines are odd-numbered sub-pixels, and the sub-pixels connected with the even-numbered gate scanning lines are even-numbered sub-pixels.
The sub-pixels comprise a red sub-pixel, a green sub-pixel and a blue sub-pixel which can form a pixel capacitor, and the difference of the voltage on the capacitor can control the deflection direction of the liquid crystal, so that the amount of light which is cast through the liquid crystal is controlled. As shown in fig. 1, each sub-pixel is connected to a Thin Film Transistor (TFT) switching circuit, and the TFT connects a source data line, a gate scan line, and the sub-pixel together.
Taking the number of the source data lines as m, the number of the grid scanning lines as 2n as an example, m is an integer larger than 1, n is a positive integer, S1～SmCan be m source data lines, G1～G2nMay be 2n gate scan lines, G1，G3，G5，……，G2n-1For odd rows of gate scan lines, G2，G4，G6，……，G2nSub-pixels P connected to the odd-numbered gate scanning lines for the even-numbered gate scanning linesm(2n-1)The sub-pixels P are connected with the grid scanning lines of the even rows of the sub-pixelsm(2n)Even rows of sub-pixels.
As shown in figure 1The example where the number of source data lines is three and the number of gate scan lines is eight is shown, S1，S2And S3Three source data lines, G1And G2Is a first pair of gate scan lines, G3And G4Is a second pair of gate scan lines, G5And G6Is a third pair of gate scan lines, G7And G8Is a third pair of gate scan lines, wherein G1，G3，G5，G7For odd rows of gate scan lines, G2，G4，G6，G8Sub-pixels, e.g. P, connected to odd-numbered gate-scan lines for even-numbered gate-scan lines11，P13，P15，P21，P23，P25For odd-numbered rows of sub-pixels, sub-pixels connected to even-numbered rows of gate-scan lines, e.g. P12，P14，P16，P22，P24，P26Even rows of sub-pixels.
In the embodiment of the present invention, the mobile terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted mobile terminal, a wearable device, a pedometer, and the like.
Referring to fig. 2, fig. 2 is a schematic flowchart of a display driving method according to an embodiment of the present invention, where the method is applied to a mobile terminal, the mobile terminal includes an image processing chip, a display driving chip and a memory, and as shown in fig. 2, the method includes:
the first-type sub-pixels are odd-row sub-pixels, and the second-type sub-pixels are even-row sub-pixels; or, the first-type sub-pixels are even-row sub-pixels, and the second-type sub-pixels are odd-row sub-pixels.
Among others, the mobile terminal may include a display unit for displaying information input by a user or information provided to the user. The display unit may include a display panel, and the display panel may be configured using a liquid crystal display. The display panel comprises odd-row sub-pixels and even-row sub-pixels, and when the odd-row sub-pixels and the even-row sub-pixels are scanned, the display panel can display a frame of image picture.
The first image data and the second image data are both image data and comprise driving voltage value information on each row of sub-pixels. The driving voltage signal can be generated through the first image data, the driving voltage signal is output to the first-class sub-pixels, and the first-class sub-pixels are displayed in a colored mode under the condition that the first-class sub-pixels are applied with the grid scanning signals; the driving voltage signal can be generated through the second image data, and is output to the second type of sub-pixels, and the second type of sub-pixels have color display under the condition that the second type of sub-pixels are applied with the grid scanning signals; and in the display time of one frame of image picture, the color display of the first type of sub-pixels and the second type of sub-pixels jointly form the one frame of image picture.
The image Processing chip may include a Central Processing Unit (CPU) or a Graphics Processing Unit (GPU), and may divide image data of one frame of image frame by the CPU or the GPU and store the first image data and the second image data in the one frame of image frame in different storage locations of the memory. In order to reduce the amount of calculation of the CPU, the image data of one frame of image frame can be divided by the GPU, the GPU is suitable for executing complex mathematical and geometric calculation, and the image data of one frame of image frame is generated by the GPU in a processing mode, so that the GPU can quickly and accurately acquire the first image data and the second image data in the image data of one frame of image frame.
Wherein, the display driving chip can pass imagesAnd the data bus interface reads the first image data, outputs a driving voltage signal corresponding to the first-class sub-pixel through a source data line and outputs a grid scanning signal corresponding to the first-class sub-pixel through a grid scanning line when the first-class sub-pixel of the frame of image picture is scanned line by line. Taking the first type of sub-pixels as odd-row sub-pixels and the second type of sub-pixels as even-row sub-pixels as examples, the sub-pixels connected to the odd-row gate scanning lines, i.e. G, are scanned line by line1，G3，G5，……，G2n-1The sub-pixel of (2) can be scanned G first1Sub-pixel of G1Up-outputs a gate scanning signal, and simultaneously, for G1The sub-pixel outputs a corresponding driving voltage signal; then scan G3Sub-pixel of G3Up-outputs a gate scanning signal, and simultaneously, for G3The sub-pixel outputs a corresponding driving voltage signal; … …, respectively; then scan G2n-1Sub-pixel of G2n-1Up-outputs a gate scanning signal, and simultaneously, for G2n-1The upper sub-pixel outputs a corresponding driving voltage signal.
The display driving chip can read the second image data through an image data bus interface, and when the second type of sub-pixels of the frame image are scanned line by line, the display driving chip outputs driving voltage signals corresponding to the second type of sub-pixels through a source data line and outputs gate scanning signals corresponding to the second type of sub-pixels through a gate scanning line. Taking the first type of sub-pixels as odd-row sub-pixels and the second type of sub-pixels as even-row sub-pixels as examples, the sub-pixels connected to the even-row grid scanning lines, namely G, are scanned line by line2，G4，G6，……，G2nThe sub-pixel of (2) can be scanned G first2Sub-pixel of G2Up-outputs a gate scanning signal, and simultaneously, for G2The sub-pixel outputs a corresponding driving voltage signal; then scan G4Sub-pixel of G4Upper transfusionOutput gate scanning signal, simultaneously, for G4The sub-pixel outputs a corresponding driving voltage signal; … …, respectively; then scan G2nSub-pixel of G2nUp-outputs a gate scanning signal, and simultaneously, for G2nThe upper sub-pixel outputs a corresponding driving voltage signal.
In the progressive scanning process, the mobile terminal adopts a column inversion scanning mode, and within the display time of a frame of image picture, the polarities of the driving voltage signals on the first type of sub-pixels are the same, the polarities of the driving voltage signals on the second type of sub-pixels are the same, and the polarities of the driving voltage signals on the first type of sub-pixels are opposite to the polarities of the driving voltage signals on the second type of sub-pixels.
It should be noted that, in practical applications, the mobile terminal, such as a mobile phone, has a high requirement for the extremely narrow side of the display screen. In the prior art, a Thin Film Transistor (TFT) type display screen (LCD) has a certain width of a black border at the upper and lower sides of the left and right sides, and the black border is an area where content cannot be displayed. As shown in fig. 3, since the display driver chip is bound to the Panel (Panel) on the lower side of the mobile terminal, the black edge on the lower side is wider than the black edges on the other sides, and the width H of the black edge on the lower side is also greatly influenced by the size of the chip.
The pixel of one TFT of Panel includes three sub-pixels of red (R), green (G) and blue (B), and the existing mature Panel pixel arrangement technology is that the sub-pixels of each column share one Source data line, and the Panel pixel arrangement under the dual-gate Panel is that the sub-pixels of each two columns share one Source data line. Therefore, if the display screen with the same resolution ratio is adopted, the source data of the display driving chip can be reduced by half, the area of the display driving chip can be reduced, and the width H of the lower side black edge can be reduced.
Panel adopts the double-grid-line Panel, and according to the power consumption calculation formula of the display driving chip:
wherein: the capacitance C is parasitic capacitance on the Panel Source data line, the voltage V is voltage on the Panel Source data line, and the frequency f is the positive and negative variation frequency of the voltage on the Panel Source data line.
The liquid crystal of the Panel adopts a column inversion scanning mode to complete data scanning of a row of sub-pixels, the change frequency of the positive voltage and the negative voltage on each Source data line of the Dual Gate Panel is twice that of the prior mature technology of the Panel, and meanwhile, one sub-pixel can be regarded as a parasitic capacitor C, so that the capacitance value on each Source data line is doubled. For example, the FHD resolution module is adopted in the mobile phone, and the FHD module has 1920 rows of pixels, so that the Dual Gate Panel can increase the power consumption of the display driver chip by 1920 × 2 times in theory compared with the existing Panel mature technology. Therefore, the power consumption of the display driving chip is large, resulting in large power consumption of the mobile terminal.
In the embodiment of the present invention, the image processing chip stores first image data and second image data in a frame of image picture in different storage locations of the memory, where the first image data is image data corresponding to a first type of sub-pixels, and the second image data is image data corresponding to a second type of sub-pixels; the display driving chip reads the first image data and scans the first type of sub-pixels line by line; the display driving chip reads the second image data, scans the second type of sub-pixels line by line, and in the display time of a frame of image picture, the polarities of the driving voltage signals on the first type of sub-pixels are the same in a column inversion scanning mode, and the polarities of the driving voltage signals on the second type of sub-pixels are the same, so that the positive and negative change frequency of the voltage on each source electrode data line in the frame of image picture is reduced by adopting the mobile terminal of the double-grid-line panel, the power consumption of the display driving chip can be reduced, and the power consumption of the mobile terminal can be reduced.
Referring to fig. 4, fig. 4 is a second flowchart of a display driving method according to an embodiment of the present invention, and the main difference of this embodiment with respect to the embodiment shown in fig. 2 is that the display driving chip reads the second image data and scans the second type of sub-pixels line by line, including: and the display driving chip detects a scanning signal switched from the first type of sub-pixels to the second type of sub-pixels, reads the second image data, and scans the second type of sub-pixels line by line. As shown in fig. 4, the method includes:
The scanning signal switching from the first-type sub-pixels to the second-type sub-pixels may be triggered when detecting that the number of scanning lines of the first-type sub-pixels of one frame of image picture has reached a preset value, where the preset value may indicate that all the first-type sub-pixels have been scanned; or the scanning method can be triggered when a preset identification bit is identified, and the preset identification bit can represent that the first-type sub-pixels are all scanned. And the display driving chip detects a scanning signal switched from the first type of sub-pixels to the second type of sub-pixels, and if the scanning signal is detected, the second type of sub-pixels are scanned line by line.
The display driving chip detects a scanning signal switched from the first type of sub-pixels to the second type of sub-pixels, reads the second image data, scans the second type of sub-pixels line by line, and can accurately switch and scan the first type of sub-pixels and the second type of sub-pixels.
As an optional implementation, the method further comprises:
the display driving chip judges whether the number of rows of the first type of sub-pixels scanned currently reaches a preset value;
and triggering the scanning signal if the number of the currently scanned first-type sub-pixel lines reaches a preset value.
The preset value may be the number of rows of the first-type sub-pixels, and if the number of rows of the currently scanned first-type sub-pixels reaches the preset value, it is characterized that all the first-type sub-pixels are scanned. The number of the first-type sub-pixel lines which are scanned currently can be counted by a counter; judging whether the counter outputs a first control signal or not; if the counter outputs a first control signal, the second type of sub-pixels of the frame of image picture are scanned line by line according to the second image data; the first control signal is a signal output when the counter counts the number of rows of the first type of sub-pixels scanned currently to a preset value.
In the embodiment of the invention, if the number of the rows of the first-class sub-pixels scanned currently reaches the preset value, the scanning signal is triggered, and the first-class sub-pixels and the second-class sub-pixels can be further accurately switched and scanned.
As an optional implementation manner, in the first image data, an identification bit is set in image data corresponding to a first target subpixel, where the first target subpixel is a row of subpixels scanned last in the first class of subpixels;
the method further comprises the following steps:
the display driving chip judges whether the image data corresponding to the sub-pixel to be scanned currently has the identification bit;
and triggering the scanning signal if the image data corresponding to the current sub-pixel to be scanned has the identification bit.
If the image data corresponding to the sub-pixel to be scanned currently has the identification bit, scanning the first target sub-pixel; and after the first target sub-pixel is scanned, reading the second image data, and scanning the second type of sub-pixels line by line. Taking the first type of sub-pixels as odd-row sub-pixels and the second type of sub-pixels as even-row sub-pixels as examples, the sub-pixels connected to the odd-row gate scan lines are scanned line by line, and the sub-pixels can beTo scan G first1Sub-pixel of (2), last scan G2n-1At this time, G2n-1The image data corresponding to the pixel on the image display device has the identification bit; or may first scan G2n-1Sub-pixel of (2), last scan G1At this time, G1The image data corresponding to the pixel of (a) has the identification bit. As shown in FIG. 5, G2n-1The sub-pixel has an identifier HE, if the sub-pixel to be scanned is G2n-1Sub-pixel of above, in pair G2n-1After the sub-pixel is scanned, from G2Starting at sub-pixel up to G2nThe upper sub-pixels are scanned line by line.
In the embodiment of the invention, if the image data corresponding to the sub-pixel to be scanned currently has the identification bit, the scanning signal is triggered, and the first type sub-pixel and the second type sub-pixel can be further accurately switched and scanned.
As an optional implementation manner, in the second image data, an identification bit is set in image data corresponding to a second target subpixel, where the second target subpixel is a row of subpixels scanned first in the second class of subpixels;
the method further comprises the following steps:
the display driving chip judges whether the image data corresponding to the sub-pixel to be scanned currently has the identification bit;
and triggering the scanning signal if the image data corresponding to the current sub-pixel to be scanned has the identification bit.
And if the image data corresponding to the sub-pixel to be scanned currently has the identification bit, scanning the second sub-pixel line by line. Taking the first type of sub-pixels as odd-row sub-pixels and the second type of sub-pixels as even-row sub-pixels as examples, the sub-pixels connected to the even-row gate scan lines are scanned line by line, and G may be scanned first2Sub-pixel of (2), last scan G2nAt this time, G2The image data corresponding to the pixel on the image display device has the identification bit; or may first scan G2nSub-pixel of (2), last scan G2Pixel of (2)At this time, G2nThe image data corresponding to the pixel of (a) has the identification bit. As shown in FIG. 6, G2The sub-pixel has an identifier HE, if the sub-pixel to be scanned is G2The upper sub-pixel is from G2Starting at sub-pixel up to G2nThe upper sub-pixels are scanned line by line.
In the embodiment of the invention, if the image data corresponding to the sub-pixel to be scanned currently has the identification bit, the scanning signal is triggered, and the first type sub-pixel and the second type sub-pixel can be further accurately switched and scanned.
As an optional implementation manner, in the first image data, an identification bit is set in image data corresponding to a first target subpixel, where the first target subpixel is a row of subpixels scanned last in the first class of subpixels; or the image data corresponding to a second target sub-pixel in the second image data is provided with an identification bit, and the second target sub-pixel is a row of sub-pixels scanned firstly in the second type of sub-pixels;
the display driving chip comprises a counter, a chip row control module, an image data demodulation module and an OR circuit, wherein a first input end of the OR circuit is connected with the counter, a second input end of the OR circuit is connected with the image data demodulation module, and an output end of the OR circuit is connected with the chip row control module;
the method further comprises the following steps:
the chip row control module judges whether the OR circuit receives a first control signal output by the counter or a second control signal output by the image data demodulation module;
if the or circuit receives a first control signal output by the counter or a second control signal output by the image data demodulation module, triggering the scanning signal;
when the number of the rows of the first-type sub-pixels scanned currently by the counter reaches a preset value, the first control signal is output to the OR circuit; and when the image data demodulation module demodulates that the image data corresponding to the current sub-pixel to be scanned has the identification bit, outputting the second control signal to the OR circuit.
The counter may count according to the horizontal synchronization clock signal, for example, when the horizontal synchronization clock signal outputs a high level, it indicates that the display driving chip is scanning a row of sub-pixels, when the horizontal synchronization clock signal changes from a high level to a low level, it indicates that the display driving chip has finished scanning the row of sub-pixels, and the value of the counter is incremented by 1, so as to count the number of rows of currently scanned sub-pixels of the first type.
The image data demodulation module is used for demodulating image data, the image data can comprise a data packet header and driving voltage value information on each row of sub-pixels, the data packet header can be stripped through the image data demodulation module, the driving voltage value information on each row of sub-pixels is stored in a buffer area and output to the data driving module, and the data driving module outputs driving voltage signals to each row of sub-pixels.
The or circuit receives the first control signal output by the counter or the second control signal output by the image data demodulation module to trigger the scan signal, where the or circuit receives the high level signal output by the counter or the high level signal output by the image data demodulation module to output the high level signal to the chip row control module.
The chip row control module is used for controlling the scanning of the sub-pixels On the grid scanning line, the grid scanning signals corresponding to the first type of sub-pixels can be output by controlling the grid scanning line On the Array substrate row driving (GOA) circuit, so that the first type of sub-pixels can be scanned, the grid scanning signals corresponding to the second type of sub-pixels can be output by controlling the grid scanning line On the GOA circuit, and the second type of sub-pixels can be scanned. For example, when the chip row control module receives a high-level signal output by the or circuit, the first-type sub-pixels can be switched to the second-type sub-pixels for scanning.
In this embodiment, the chip row control module determines whether the or circuit receives a first control signal output by the counter or a second control signal output by the image data demodulation module; if the or circuit receives the first control signal output by the counter or the second control signal output by the image data demodulation module, the scanning signal is triggered, and compared with the situation that the switching is controlled by the first control signal or the second control signal singly, the reliability of switching from the first type of sub-pixels to the second type of sub-pixels can be improved.
Referring to fig. 7, fig. 7 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention, where the mobile terminal includes an image processing chip 60, a display driving chip 70, and a memory, the image processing chip 60 is configured to store first image data and second image data in an image frame at different storage locations of the memory, where the first image data is image data corresponding to a first type of sub-pixels, and the second image data is image data corresponding to a second type of sub-pixels;
the display driving chip 70 is configured to read the first image data and scan the first type of sub-pixels line by line; reading the second image data, and scanning the second type of sub-pixels line by line;
the first-type sub-pixels are odd-row sub-pixels, and the second-type sub-pixels are even-row sub-pixels; or, the first-type sub-pixels are even-row sub-pixels, and the second-type sub-pixels are odd-row sub-pixels.
Optionally, the display driving chip 70 is configured to detect a scanning signal switched from the first type of sub-pixels to the second type of sub-pixels, read the second image data, and scan the second type of sub-pixels line by line.
Optionally, the display driver chip 70 is configured to determine whether the number of rows of the currently scanned first-type sub-pixels reaches a preset value, and trigger the scanning signal if the number of rows of the currently scanned first-type sub-pixels reaches the preset value.
Optionally, image data corresponding to a first target subpixel in the first image data is provided with an identification bit, and the first target subpixel is a row of subpixels scanned last in the first class of subpixels; or the image data corresponding to a second target sub-pixel in the second image data is provided with an identification bit, and the second target sub-pixel is a row of sub-pixels scanned firstly in the second type of sub-pixels;
the display driving chip 70 is configured to determine whether the image data corresponding to the current sub-pixel to be scanned has the identification bit, and trigger the scanning signal if the image data corresponding to the current sub-pixel to be scanned has the identification bit.
Optionally, image data corresponding to a first target subpixel in the first image data is provided with an identification bit, and the first target subpixel is a row of subpixels scanned last in the first class of subpixels; or the image data corresponding to a second target sub-pixel in the second image data is provided with an identification bit, and the second target sub-pixel is a row of sub-pixels scanned firstly in the second type of sub-pixels;
the display driving chip 70 includes a counter 701, a chip row control module 702, an image data demodulation module 704 and an or circuit 703, or a first input terminal of the circuit 703 is connected to the counter 701, or a second input terminal of the circuit 703 is connected to the image data demodulation module 704, or an output terminal of the circuit 703 is connected to the chip row control module 702;
the counter 701 is configured to output the first control signal to the or circuit 703 when the count of the number of rows of the currently scanned first-type sub-pixels reaches a preset value;
the image data demodulation module 704 is configured to output the second control signal to the or circuit 703 when it is demodulated that the image data corresponding to the currently scanned sub-pixel has the identification bit;
the chip row control module 702 is configured to determine whether the or circuit 703 receives a first control signal output by the counter 701 or a second control signal output by the image data demodulation module 704, and trigger the scan signal if the or circuit 703 receives the first control signal output by the counter 701 or the second control signal output by the image data demodulation module 704.
As a specific implementation manner, taking a mobile terminal as a mobile phone, a first-type sub-pixel being an odd-row sub-pixel, and a second-type sub-pixel being an even-row sub-pixel as an example, a specific implementation process of the display driving method according to the embodiment of the present invention is as follows:
firstly, as shown in fig. 8, the CPU of the mobile phone system obtains a frame of image data from the GRAM1 storage area and outputs the frame of image data to the GPU, and the GPU calculates and analyzes the total line number 2n of the image; the GPU converts the odd line data (G) of the image of one frame1、G3、……、G2n-3、G2n-1) The GRAM2 is identified and stored in the storage area, and the end address position identifier E1 of the storage area of the GRAM2 at the moment is marked. Even line data (G) of the frame image2、G4、……、G2n-2、G2n) Is stored in GRAM2 starting from storage area address location E1. Therefore, the CPU and the GPU finish the arrangement and storage of the odd-numbered line image data and the even-numbered line image data of the mobile phone system side image. In order to avoid the condition of line loss caused by abnormal data transmission (such as common ESD interference signals) and further cause the odd-numbered and even-numbered control errors in the demodulation of the display driving chip end, the stored G2n-1And an identifier HE is added at the end of the data, so that a display driving chip can identify the boundary point of the odd-row sub-pixels and the even-row sub-pixels, and the accuracy of the time-sharing control point of the odd-row sub-pixels and the even-row sub-pixels is ensured.
Then, the GPU of the mobile phone system obtains the processed image data from GRAM2, and outputs a frame of image data line by line through the image data bus interface.
Finally, as shown in fig. 9, the display driver chip receives a frame of image data from the GPU, demodulates the frame of image data line by line, and stores the demodulated frame of image data in a data buffer area (FIFO). As shown in fig. 10, in the initial state, the output values of the Y and OE _ SYNC signals are 0, so the or gate outputs the EN signal default to 0, and at this time, the GOA circuit is controlled by the chip row control module to scan the odd-numbered rows of sub-pixels, and at the same time, the data buffer section outputs the image data signals of the odd-numbered rows of sub-pixels to the data driving module, and the data driving module outputs the driving voltage signals to the odd-numbered rows of sub-pixels.
When the first row of odd row sub-pixels is scanned, OE _ Count starts counting, and when the Count value of OE _ Count is n, Y is 1, and the image data demodulation module demodulates to the row with HE end marker Gn, so that the OE _ SYNC output value becomes 1. At this time, the EN output value of the or gate is 1, and at this time, the chip row control module controls the GOA circuit to scan the even-row sub-pixels, and at the same time, the data buffer region outputs the image data signals of the even-row sub-pixels to the data driving module.
When the OE _ Count value is 2n, displaying of one frame of image picture is completed; the counter Y output value is now 0. When the display driving chip receives the next frame of image data again, OE _ Count clears the Count value (RESET) with the frame synchronization signal VSYNC, and the image data demodulation module changes the OE _ SYNC output value to 0 with the frame synchronization signal VSYNC.
The chip row control module in the display driving chip receives an enable signal (EN) which is output by an OR gate and controls the odd-row sub-pixels and the even-row sub-pixels to output, and when EN is 0, the chip row control module controls a GOA circuit to scan the odd-row sub-pixels; when EN is equal to 1, the chip row control module controls the GOA circuit to scan even-numbered row sub-pixels, where 1 is a high-level signal and 0 is a low-level signal. The input signals of the OR gate are Y and OE _ SYNC, and the Y signal is the output signal of the counter OE _ Count; OE _ SYNC is an output signal of the image data demodulation module, and an OE _ SYNC signal is output after the image data demodulation module demodulates the image data with the HE end identifier. VSYNC is a synchronization signal at the beginning of a frame, and at the beginning of a frame, i.e., VSYNC is 1, OE _ SYNC default is 0, G is completed2n-1After line demodulation, the value of OE _ SYNC is 1, and when the synchronization signal becomes 1 from the next frame VSYNC, the value of OE _ SYNC becomes 0.
The input signal of the counter is a line synchronization clock signal HYSYN, counting is started when the display driving chip scans a first line G1, and when the number of lines reaches n (2n is the total number of lines of one frame of image), a Y signal is output as 1; when the number of the calculation lines reaches 2n, the Y signal is output to 0, at this time, the statistics of one frame of data lines is completed, and the count value is cleared (RESET) by the VSYNC synchronous signal of the next frame.
As shown in fig. 11, during the display time of one frame of image frame, the polarities of the driving voltage signals on the sub-pixels in the odd rows are the same, the polarities of the driving voltage signals on the sub-pixels in the even rows are the same, and the polarities of the driving voltage signals on the sub-pixels of the first type are opposite to the polarities of the driving voltage signals on the sub-pixels of the second type. The power consumption of the mobile terminal can be reduced.
The switching is controlled by receiving the Y signal output by the counter and the OE _ SYNC signal output by the image data demodulation module through the OR gate, so that the reliability of switching and scanning the first type of sub-pixels and the second type of sub-pixels can be improved.
The mobile terminal can realize each process realized by the mobile terminal in the embodiment of the method of the invention and achieve the same beneficial effect, and the repeated description is omitted here for avoiding the repetition.
Referring to fig. 12, fig. 12 is a second schematic structural diagram of a mobile terminal according to a second embodiment of the present invention, where the mobile terminal may be a hardware structural diagram of a mobile terminal for implementing various embodiments of the present invention. As shown in fig. 12, mobile terminal 1200 includes, but is not limited to: radio frequency unit 1201, network module 1202, audio output unit 1203, input unit 1204, sensor 1205, display unit 1206, user input unit 1207, interface unit 1208, memory 1209, processor 1210, and power source 1211. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 12 is not intended to be limiting of mobile terminals, and that a mobile terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the mobile terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.
The processor 1210 is configured to store, in different storage locations of the memory 1209, first image data and second image data in a frame of image frame, where the first image data is image data corresponding to a first type of sub-pixels, and the second image data is image data corresponding to a second type of sub-pixels;
the display driving chip 12062 is configured to read the first image data and scan the first type of sub-pixels line by line; reading the second image data, and scanning the second type of sub-pixels line by line;
the first-type sub-pixels are odd-row sub-pixels, and the second-type sub-pixels are even-row sub-pixels; or, the first-type sub-pixels are even-row sub-pixels, and the second-type sub-pixels are odd-row sub-pixels.
Optionally, the display driving chip 12062 is configured to detect a scanning signal switched from the first type of sub-pixel to the second type of sub-pixel, read the second image data, and scan the second type of sub-pixel line by line.
Optionally, the display driver chip 12062 is configured to determine whether the number of rows of the currently scanned first-type sub-pixels reaches a preset value, and trigger the scanning signal if the number of rows of the currently scanned first-type sub-pixels reaches the preset value.
Optionally, image data corresponding to a first target subpixel in the first image data is provided with an identification bit, and the first target subpixel is a row of subpixels scanned last in the first class of subpixels; or the image data corresponding to a second target sub-pixel in the second image data is provided with an identification bit, and the second target sub-pixel is a row of sub-pixels scanned firstly in the second type of sub-pixels;
the display driving chip 12062 is configured to determine whether the image data corresponding to the current sub-pixel to be scanned has the identification bit, and trigger the scanning signal if the image data corresponding to the current sub-pixel to be scanned has the identification bit.
Optionally, image data corresponding to a first target subpixel in the first image data is provided with an identification bit, and the first target subpixel is a row of subpixels scanned last in the first class of subpixels; or the image data corresponding to a second target sub-pixel in the second image data is provided with an identification bit, and the second target sub-pixel is a row of sub-pixels scanned firstly in the second type of sub-pixels;
the display driving chip 12062 includes a counter 120621, a chip row control module 120622, an image data demodulation module 120624 and an or circuit 120623, wherein a first input terminal of the or circuit 120623 is connected to the counter 120621, a second input terminal of the or circuit 120623 is connected to the image data demodulation module 120624, or an output terminal of the circuit 120623 is connected to the chip row control module 120622;
the counter 120621 is used for outputting the first control signal to the or circuit 120623 when the count of the number of rows of the first type of sub-pixels currently scanned reaches a preset value;
the image data demodulation module 120624 is configured to output the second control signal to the or circuit 120623 when it is demodulated that the image data corresponding to the sub-pixel to be scanned currently has the identification bit;
the chip row control module 120622 is configured to determine whether the or circuit 120623 receives the first control signal output by the counter 120621 or the second control signal output by the image data demodulation module 120624, and trigger the scan signal if the or circuit 120623 receives the first control signal output by the counter 120621 or the second control signal output by the image data demodulation module 120624.
It should be noted that, in this embodiment, the mobile terminal 1200 may implement each process implemented by the mobile terminal in the method embodiment of the present invention, and achieve the same beneficial effects, and for avoiding repetition, details are not described here again.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 1201 may be used for receiving and sending signals during information transmission and reception or during a call, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 1210; in addition, the uplink data is transmitted to the base station. Typically, the radio frequency unit 1201 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 1201 can also communicate with a network and other devices through a wireless communication system.
The mobile terminal provides wireless broadband internet access to the user through the network module 1202, such as assisting the user in sending and receiving e-mails, browsing web pages, and accessing streaming media.
The audio output unit 1203 may convert audio data received by the radio frequency unit 1201 or the network module 1202 or stored in the memory 1209 into an audio signal and output as sound. Also, the audio output unit 1203 may also provide audio output related to a specific function performed by the mobile terminal 1200 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 1203 includes a speaker, a buzzer, a receiver, and the like.
The input unit 1204 is used to receive audio or video signals. The input unit 1204 may include a microphone 12041, and the microphone 12041 may receive sounds and may be capable of processing such sounds into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 1201 in case of the phone call mode.
The mobile terminal 1200 also includes at least one sensor 1205, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the brightness of the display panel 12061 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 12061 and/or backlight when the mobile terminal 1200 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the posture of the mobile terminal (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), and vibration identification related functions (such as pedometer, tapping); the sensors 1205 may also include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., and will not be described further herein.
The display unit 1206 is used to display information input by the user or information provided to the user. The Display unit 1206 may include a Display panel 12061 and a Display driving chip 12062, and the Display panel 12061 may be configured by a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 1207 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, the user input unit 1207 includes a touch panel 12071 and other input devices 12072. The touch panel 12071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 12071 (e.g., operations by a user on or near the touch panel 12071 using a finger, a stylus, or any suitable object or attachment). The touch panel 12071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 1210, receives a command from the processor 1210, and executes the command. In addition, the touch panel 12071 may be implemented by using various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. The user input unit 1207 may include other input devices 12072 in addition to the touch panel 12071. In particular, the other input devices 12072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described herein again.
Further, the touch panel 12071 may be overlaid on the display panel 12061, and when the touch panel 12071 detects a touch operation thereon or nearby, the touch operation is transmitted to the processor 1210 to determine the type of the touch event, and then the processor 1210 provides a corresponding visual output on the display panel 12061 according to the type of the touch event. Although the touch panel 12071 and the display panel 12061 are shown as two separate components in fig. 12 to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 12071 and the display panel 12061 may be integrated to implement the input and output functions of the mobile terminal, and is not limited herein.
The interface unit 1208 is an interface for connecting an external device to the mobile terminal 1200. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. Interface unit 1208 may be used to receive input from external devices (e.g., data information, power, etc.) and transmit the received input to one or more elements within mobile terminal 1200 or may be used to transmit data between mobile terminal 1200 and external devices.
The memory 1209 may be used to store software programs as well as various data. The memory 1209 may mainly include a storage program area and a storage data area, where the storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required by at least one function, and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 1209 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.
The processor 1210 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by running or executing software programs and/or modules stored in the memory 1209 and calling data stored in the memory 1209, thereby integrally monitoring the mobile terminal. Processor 1210 may include one or more processing units; preferably, the processor 1210 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It is to be appreciated that the modem processor described above may not be integrated into processor 1210.
The mobile terminal 1200 may also include a power source 1211 (e.g., a battery) for powering the various components, and the power source 1211 may be logically connected to the processor 1210 through a power management system that may be configured to manage charging, discharging, and power consumption.
In addition, the mobile terminal 1200 includes some functional modules that are not shown, and are not described in detail herein.
Preferably, an embodiment of the present invention further provides a mobile terminal, which includes a processor, a memory, and a computer program stored in the memory and capable of running on the processor, where the computer program, when executed by the processor, implements each process in the foregoing display driving method embodiment, and can achieve the same technical effect, and details are not repeated here to avoid repetition.
The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the display driving method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
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 (4)
1. A display driving method is applied to a mobile terminal, and is characterized in that the mobile terminal comprises an image processing chip, a display driving chip and a memory, and the method comprises the following steps:
the image processing chip stores first image data and second image data in a frame of image picture at different storage positions of the memory, wherein the first image data is image data corresponding to a first type of sub-pixels, and the second image data is image data corresponding to a second type of sub-pixels;
the display driving chip reads the first image data and scans the first type of sub-pixels line by line;
the display driving chip reads the second image data and scans the second type of sub-pixels line by line;
the first-type sub-pixels are odd-row sub-pixels, and the second-type sub-pixels are even-row sub-pixels; or, the first-type sub-pixels are even-row sub-pixels, and the second-type sub-pixels are odd-row sub-pixels;
the display driving chip reads the second image data, and scans the second type of sub-pixels line by line, including:
the display driving chip detects a scanning signal switched from the first type of sub-pixels to the second type of sub-pixels, reads the second image data, and scans the second type of sub-pixels line by line;
the image data corresponding to a first target sub-pixel in the first image data is provided with an identification bit, and the first target sub-pixel is a row of sub-pixels scanned last in the first type of sub-pixels; or the image data corresponding to a second target sub-pixel in the second image data is provided with an identification bit, and the second target sub-pixel is a row of sub-pixels scanned firstly in the second type of sub-pixels;
the display driving chip reads the second image data, and before scanning the second type of sub-pixels line by line, the method further includes: the display driving chip judges whether the image data corresponding to the sub-pixel to be scanned currently has the identification bit; if the image data corresponding to the sub-pixel to be scanned currently has the identification bit, triggering the scanning signal; or
The display driving chip comprises a counter, a chip row control module, an image data demodulation module and an OR circuit, wherein a first input end of the OR circuit is connected with the counter, a second input end of the OR circuit is connected with the image data demodulation module, and an output end of the OR circuit is connected with the chip row control module; the display driving chip reads the second image data, and before scanning the second type of sub-pixels line by line, the method further includes: the chip row control module judges whether the OR circuit receives a first control signal output by the counter or a second control signal output by the image data demodulation module; if the or circuit receives a first control signal output by the counter or a second control signal output by the image data demodulation module, triggering the scanning signal; when the number of the rows of the first-type sub-pixels scanned currently by the counter reaches a preset value, the first control signal is output to the OR circuit; and when the image data demodulation module demodulates that the image data corresponding to the current sub-pixel to be scanned has the identification bit, outputting the second control signal to the OR circuit.
2. The method of claim 1, wherein before the display driving chip reads the second image data and scans the second type of sub-pixels row by row, the method further comprises:
the display driving chip judges whether the number of rows of the first type of sub-pixels scanned currently reaches a preset value;
and triggering the scanning signal if the number of the currently scanned first-type sub-pixel lines reaches a preset value.
3. A mobile terminal is characterized by comprising an image processing chip, a display driving chip and a memory, wherein the image processing chip is used for storing first image data and second image data in a frame of image picture at different storage positions of the memory, the first image data is image data corresponding to a first type of sub-pixels, and the second image data is image data corresponding to a second type of sub-pixels;
the display driving chip is used for reading the first image data and scanning the first type of sub-pixels line by line; reading the second image data, and scanning the second type of sub-pixels line by line;
the first-type sub-pixels are odd-row sub-pixels, and the second-type sub-pixels are even-row sub-pixels; or, the first-type sub-pixels are even-row sub-pixels, and the second-type sub-pixels are odd-row sub-pixels;
the display driving chip is used for detecting a scanning signal switched from the first type of sub-pixels to the second type of sub-pixels, reading the second image data and scanning the second type of sub-pixels line by line;
the image data corresponding to a first target sub-pixel in the first image data is provided with an identification bit, and the first target sub-pixel is a row of sub-pixels scanned last in the first type of sub-pixels; or the image data corresponding to a second target sub-pixel in the second image data is provided with an identification bit, and the second target sub-pixel is a row of sub-pixels scanned firstly in the second type of sub-pixels;
the display driving chip is used for judging whether the image data corresponding to the sub-pixel to be scanned currently has the identification bit, and if the image data corresponding to the sub-pixel to be scanned currently has the identification bit, the scanning signal is triggered; or
The display driving chip comprises a counter, a chip row control module, an image data demodulation module and an OR circuit, wherein a first input end of the OR circuit is connected with the counter, a second input end of the OR circuit is connected with the image data demodulation module, and an output end of the OR circuit is connected with the chip row control module; the counter is used for outputting a first control signal to the OR circuit when the number of the rows of the first type of sub-pixels which are scanned currently reaches a preset value; the image data demodulation module is used for outputting a second control signal to the OR circuit when demodulating that the image data corresponding to the current sub-pixel to be scanned has the identification bit; the chip row control module is configured to determine whether the or circuit receives the first control signal output by the counter or the second control signal output by the image data demodulation module, and trigger the scan signal if the or circuit receives the first control signal output by the counter or the second control signal output by the image data demodulation module.
4. The mobile terminal of claim 3, wherein the display driver chip is configured to determine whether the number of rows of currently scanned first-type subpixels reaches a preset value, and trigger the scan signal if the number of rows of currently scanned first-type subpixels reaches the preset value.
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| CN112820237B (en) | 2019-10-31 | 2022-08-26 | 京东方科技集团股份有限公司 | Electronic substrate, driving method thereof and display device |
| CN111540323A (en) * | 2020-05-20 | 2020-08-14 | 武汉华星光电技术有限公司 | Liquid crystal display device having a plurality of pixel electrodes |
| CN112511716B (en) * | 2020-11-17 | 2023-06-30 | Oppo广东移动通信有限公司 | Image display method, DDIC chip, AP, display screen module and terminal |
| TWI746355B (en) * | 2021-01-22 | 2021-11-11 | 聚積科技股份有限公司 | Scanning display drive system |
| CN114495861A (en) * | 2022-03-14 | 2022-05-13 | Tcl华星光电技术有限公司 | Array substrate, display panel and display method |
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| EP1453360B1 (en) * | 1999-11-03 | 2012-10-24 | OMG, Inc. | Induction heating system and method of adhesive bonding by induction heating |
| CN102750916A (en) * | 2011-04-18 | 2012-10-24 | 晨星软件研发(深圳)有限公司 | Thin film transistor array capable of completely inversing dots and liquid crystal display panel thereof |
| CN102810304A (en) * | 2012-08-09 | 2012-12-05 | 京东方科技集团股份有限公司 | Pixel unit, pixel structure, display device and pixel driving method |
| CN105511184A (en) * | 2016-01-13 | 2016-04-20 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and driving method thereof |
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