CN116110317A - A new driving method for display screen - Google Patents

Abstract

The invention provides a novel driving method of a display screen, which comprises the following steps: s1, presetting source driving methods corresponding to different refresh rates; s2, storing a source driving method in a program storage chip; s3, a terminal platform use situation and a refresh rate; s4, continuously monitoring data output to the display screen by the terminal platform, judging whether the use situation of the terminal equipment is matched with the current refresh rate of the display screen, if so, not changing, otherwise, selecting the corresponding refresh rate according to the use situation of the terminal equipment to change; s5, the terminal platform transmits a corresponding refresh rate switching instruction to the panel driving chip; s6, calling a corresponding source driving method by the panel driving chip; s7, updating the refresh rate of the display screen and a source driving method corresponding to the refresh rate. The invention can enable the panel to have optimal display effect under the premise of different refresh rates, simultaneously reduce the power consumption of the display screen and prolong the endurance time.

Description

A new driving method for display screen

technical field

The invention relates to the technical field of display screens, in particular to a driving method of a novel display screen.

Background technique

In today's display consumer market, from mobile phones, tablets to notebooks, there is an increasing pursuit of continuous improvement of various performances. For example, higher resolution, better color vision, and higher refresh rate to give people a better visual experience. Today's trend is wider dynamic refresh rate switching. The development of the dynamic refresh rate aims to lower the power consumption of the whole machine and extend the battery life. When reading text and static display, use ultra-low frequency display to save power consumption; when playing games and watching blockbuster movies, switch to high refresh rate to obtain a better visual experience. Matched with the functional requirements, the panel needs to adapt to a better driving method under the dynamic refresh rate.

The current mainstream source (source) driving methods are mainly divided into two categories, point inversion and column inversion. Dot inversion has a good effect on suppressing flickering, horizontal and vertical lines, etc., but due to the high frequency of data inversion, the power consumption is high; column inversion has the risk of vertical lines and flickering at low frequencies, but the power consumption is relatively high. Low.

Human eyes have different perceptions of panel display effects at different refresh rates. However, the existing display driving method generally only changes the refresh rate, and the driving method of the panel will not be changed too much. In the case of using the column inversion driving method, it is easier for the human eye to capture the brightness difference between different frames and different pixels of the panel with a low refresh rate panel, so you can see phenomena such as flickering screens and vertical lines; When the refresh rate is high, due to the fast screen switching, the brightness of different frames and pixels is integrated, and the human eye cannot distinguish the difference in brightness, so the splash screen and vertical lines cannot be seen. However, if all dot inversion is used, the panel will have a better display effect at low refresh rate or high refresh rate, but it will increase the power consumption of the panel.

Contents of the invention

The technical problem to be solved by the present invention is to provide a new driving method of a display screen, which can have an optimal display effect at different refresh rates of the panel and reduce power consumption at the same time.

The present invention is achieved like this: the present invention provides a kind of driving method of novel display screen, comprises the following steps:

S1. Preset source driving methods corresponding to different refresh rates;

S2, storing the source driving method preset in step S1 in the program memory chip;

S3. The terminal platform sets the use situation of the terminal equipment and the refresh rate required in the corresponding situation;

S4. The terminal platform continuously monitors the data output to the display screen to determine whether the usage scenario of the terminal device matches the current refresh rate of the display screen. Change, enter step S5;

S5. The terminal platform issues an instruction to switch the corresponding refresh rate to the panel driver chip;

S6. The panel driver chip calls the source driver method corresponding to the refresh rate stored in the memory chip;

S7. Update the refresh rate of the display screen and its corresponding source driving method.

Further, in the step S1, when the refresh rate of the display screen is less than 60 Hz, the preset source driving method is dot inversion, and when the refresh rate of the display screen is greater than or equal to 60 Hz, the preset source driving method is column inversion.

Further, types of refresh rates in step S1 include 30Hz, 60Hz, 90Hz, 120Hz and 144Hz.

Further, the usage scenarios include text reading, static display, game interface or video display.

The advantages of the present invention are: when the refresh rate of the display screen is lower than 60 Hz, the dot inversion driving mode is adopted, and the display screen can suppress the occurrence of phenomena such as flicker screen, horizontal lines, and vertical lines, thereby improving the display effect of the panel . When the refresh rate of the display screen is higher than 60Hz, the column inversion driving method is adopted, which reduces the power consumption of the display screen and prolongs the battery life while avoiding phenomena such as flickering, horizontal lines, and vertical lines.

Description of drawings

The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

FIG. 1 is a schematic flow chart of a display driving method of the present invention.

Detailed ways

Please refer to Fig. 1, the present invention provides a kind of driving method of novel display screen, comprises the following steps:

S1. Preset source driving methods corresponding to different refresh rates;

S2, storing the source driving method preset in step S1 in the program memory chip;

S3. The terminal platform sets the use situation of the terminal equipment and the refresh rate required in the corresponding situation;

S4. The terminal platform continuously monitors the data output to the display screen to determine whether the usage scenario of the terminal device matches the current refresh rate of the display screen. Change, enter step S5;

S5. The terminal platform issues an instruction to switch the corresponding refresh rate to the panel driver chip;

S6. The panel driver chip calls the source driver method corresponding to the refresh rate stored in the memory chip;

S7. Update the refresh rate of the display screen and its corresponding source driving method.

Specifically, in the step S1, when the refresh rate of the display screen is less than 60 Hz, the preset source driving method is dot inversion, and when the refresh rate of the display screen is greater than or equal to 60 Hz, the preset source driving method is column inversion.

Specifically, types of refresh rates in step S1 include 30 Hz, 60 Hz, 90 Hz, 120 Hz and 144 Hz.

Specifically, the usage scenarios include text reading, static display, game interface or video display.

A specific application of the present invention is:

Under normal circumstances, when the game interface and video are displayed, the refresh rate of the display screen is greater than 60Hz to obtain a better display effect. When text reading and static display are performed, the refresh rate of the display screen is usually lower than 60Hz. In order for the panel to have the optimal display effect at different refresh rates and reduce power consumption at the same time, the present invention proposes a new display driving method. When the refresh rate of the display is less than 60Hz, the dot inversion drive is used, and the refresh rate of the display is Use column inversion driving when it is greater than or equal to 60Hz, and the implementation steps are as follows:

Preset the corresponding source driving methods corresponding to different refresh rates. There are two source driving methods, namely dot inversion and column inversion. When the refresh rate of the display screen is less than 60Hz, the preset source driving method is dot inversion. When the display refresh rate is greater than or equal to 60Hz, the preset source driving method is column inversion. The settings of the two source driving methods are stored in the program memory chip for calling by the panel driver chip. Set the device usage scenario and the corresponding refresh rate that needs to be used, such as game interface, video display or other scenarios that require a high refresh rate of the display screen. The set refresh rate is greater than or equal to 60Hz, 90Hz, 120Hz and 144Hz. For usage scenarios such as text reading and static display that do not require a high refresh rate of the display, the refresh rate of the display can be set to 30Hz.

The terminal platform monitors the use of the device by continuously monitoring the output data changes; by judging the current use of the device, the refresh rate switching function is activated. For example, when the usage scenario switches from the game interface to text reading, the refresh rate switching function is activated.

The terminal platform sends an instruction to switch the corresponding refresh rate to the panel driver chip. After the panel driver chip receives the instruction to switch the refresh rate, it can adjust the corresponding refresh rate timing setting in the program memory chip, and reduce the refresh rate of the display screen from 60Hz or higher 90Hz, 120Hz and 144Hz to 30Hz. At the same time, the panel driver chip invokes the dot inversion source driving method corresponding to 30Hz stored in the memory chip, thereby switching the column inversion source driving method to the dot inversion source driving method to avoid , The human eye recognizes the splash screen, vertical lines and other phenomena of the display screen.

Similarly, when switching from the text reading usage scenario to the game interface, the refresh rate of the display screen is switched from 30Hz to 60Hz or higher 90Hz, 120Hz and 144Hz, and the panel driver chip calls the source driver method stored in the memory chip, Switching the source driving method of dot inversion to the source driving method of column inversion can reduce the power consumption of the device and extend the Battery life.

When the refresh rate of the display screen is lower than 60 Hz, the present invention adopts a dot inversion driving mode, which can suppress the occurrence of phenomena such as flickering screens and vertical lines on the display screen, thereby improving the display effect of the panel. When the refresh rate of the display screen is higher than 60Hz, the column inversion driving method is adopted, which not only reduces the display effect, but also reduces the power consumption of the display screen and prolongs the battery life.

Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments we have described are only illustrative, rather than used to limit the scope of the present invention. Equivalent modifications and changes made by skilled personnel in accordance with the spirit of the present invention shall fall within the protection scope of the claims of the present invention.

Claims (4)

1. A novel driving method of a display screen is characterized in that: the method comprises the following steps:

s1, presetting source driving methods corresponding to different refresh rates;

s2, storing the source driving method preset in the step S1 in a program storage chip;

s3, the terminal platform sets a use situation of the terminal equipment and a refresh rate required to be used under the corresponding situation;

s4, continuously monitoring data output to the display screen by the terminal platform, judging whether the use situation of the terminal equipment is matched with the current refresh rate of the display screen, if so, not changing, otherwise, selecting the corresponding refresh rate according to the use situation of the terminal equipment to change, and entering step S5;

s5, the terminal platform transmits a corresponding refresh rate switching instruction to the panel driving chip;

s6, the panel driving chip calls a source driving method corresponding to the refresh rate stored in the storage chip;

s7, updating the refresh rate of the display screen and a source driving method corresponding to the refresh rate.

2. A method of driving a novel display as claimed in claim 1, wherein: in the step S1, when the refresh rate of the display screen is less than 60Hz, the preset source driving method is dot inversion, and when the refresh rate of the display screen is greater than or equal to 60Hz, the preset source driving method is column inversion.

3. A method of driving a novel display as claimed in claim 1, wherein: the types of refresh rates of step S1 include 30Hz, 60Hz,90Hz, 120Hz, and 144Hz.

4. A method of driving a novel display as claimed in claim 1, wherein: the usage scenario includes text reading, static display, game interface, or video display.

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