CN-117636824-B - Display screen refresh rate adjusting method and device, display screen and storage medium

CN117636824BCN 117636824 BCN117636824 BCN 117636824BCN-117636824-B

Abstract

The present invention relates to the field of display technologies, and in particular, to a method and an apparatus for adjusting a refresh rate of a display, and a storage medium. The invention detects the response signal of the active capacitance pen when the display screen works, and adjusts the refresh rate of the display screen when the response signal is not detected so as to enable the display screen to be in a high refresh rate mode, thereby achieving the high refresh rate of the display screen and simultaneously supporting the function of the active capacitance pen.

Inventors

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Assignees

深圳市千分一智能技术有限公司

Dates

Publication Date: 20260508
Application Date: 20231212

Claims (7)

1. A method for adjusting a refresh rate of a display screen, the method being applied to a display screen with an active capacitive pen, the method comprising: when the display screen works, detecting a response signal of the active capacitance pen; when the response signal is not detected, the refresh rate of the display screen is adjusted so that the display screen is in a high refresh rate mode; When the display screen works, the method for detecting the response signal of the active capacitance pen comprises the following steps: When the display screen works, an identification signal is sent to the active capacitance pen, so that the active capacitance pen outputs a response signal based on the identification signal; detecting a response signal output by the active capacitance pen; After detecting the response signal of the active capacitance pen when the display screen works, the display screen further comprises: when the response signal is detected, the refresh rate of the display screen is adjusted so that the display screen is in a low refresh rate mode; and when the response signal is detected, adjusting the refresh rate of the display screen to enable the display screen to be in a low refresh rate mode, wherein the method comprises the following steps of: when the response signal is detected, checking whether a hash relation exists between the response signal and the identification signal; If yes, the active capacitance pen function is started, and the refresh rate of the display screen is adjusted so that the display screen is in a low refresh rate mode.
2. The method of refresh rate adjustment of a display screen of claim 1, wherein the sending an identification signal to the active capacitive pen comprises: And modulating an identification signal in a preset mode and then sending the identification signal to the active capacitance pen, wherein the identification signal comprises bit data identified by the active capacitance pen.
3. The method for adjusting refresh rate of a display screen according to claim 1, wherein the response signal is the identification signal after a hash operation.
4. The method for adjusting a refresh rate of a display screen according to claim 1, wherein adjusting the refresh rate of the display screen to place the display screen in a high refresh rate mode when the response signal is not detected comprises: recording the detection duration when the response signal is not detected; and when the detected time length reaches a preset time length, adjusting the refresh rate of the display screen so as to enable the display screen to be in a high refresh rate mode.
5. A refresh rate adjustment device for a display screen, the device comprising: the capacitive pen detection module is used for detecting a response signal of the active capacitive pen when the display screen works; the display screen adjusting module is used for adjusting the refresh rate of the display screen when the response signal is not detected, so that the display screen is in a high refresh rate mode; The capacitive pen detection module is also used for sending an identification signal to the active capacitive pen when the display screen works, so that the active capacitive pen outputs a response signal based on the identification signal; The capacitive pen detection module is further used for adjusting the refresh rate of the display screen when the response signal is detected, so that the display screen is in a low refresh rate mode; The capacitive pen detection module is further used for detecting whether a hash relationship exists between the response signal and the identification signal or not when the response signal is detected, if yes, enabling an active capacitive pen function and adjusting the refresh rate of the display screen so that the display screen is in a low refresh rate mode.
6. A display screen comprising a memory, a processor and a refresh rate adjustment program of the display screen stored on the memory and executable on the processor, the refresh rate adjustment program of the display screen being configured to implement the steps of the refresh rate adjustment method of the display screen as claimed in any one of claims 1 to 4.
7. A storage medium, wherein a refresh rate adjustment program for a display screen is stored on the storage medium, and the refresh rate adjustment program for a display screen, when executed by a processor, implements the steps of the refresh rate adjustment method for a display screen according to any one of claims 1 to 4.

Description

Display screen refresh rate adjusting method and device, display screen and storage medium Technical Field The present invention relates to the field of display technologies, and in particular, to a method and an apparatus for adjusting a refresh rate of a display, and a storage medium. Background Since the touch panel is embedded In the liquid crystal pixel, display (display) and touch (touch) of the touch screen using the In-cell technology cannot be operated simultaneously (both interfere with each other when operated simultaneously). Therefore, the display and touch operation on the In-cell screen are performed by using the time-sharing operation method, i.e. the display operation period and the touch operation period are performed next, and the display and touch operation time allocation is completed by the TDDI chip. For example, the unit operation time length of one In-cell screen is T frame (the time length of one frame, usually 8ms, 16ms, etc.), the display operation time length In the unit operation time length is T display, and the touch operation time length is T touch, then T frame＝Tdisplay+Ttouch. The higher the T display duty cycle, the more time the screen can take to refresh the picture, which can achieve a higher screen refresh rate. For example, a screen may achieve a 144Hz display refresh rate at T display＝Tframe,Ttouch = 0, while a screen may achieve only a 60Hz display refresh rate at T display＝0.4*Tframe. It can be seen that to achieve a higher screen refresh rate, the duty cycle of T display must be increased. However, the remaining T touch is insufficient to support the screen detection of the active capacitive pen when T display is increased to some extent. Generally, T touch must include one T uplink and a plurality of T downlink to implement the active capacitive pen detection function. The combination of a T uplink and a plurality of T downlink is also the working requirement of the active capacitance pen, the active pen receives the data sent by the screen in the stage T uplink and sends the related data to the screen in the stage T downlink, and because the data amount is large and each time T downlink is short, a plurality of T downlink are needed to send all the data to the screen. Therefore, part of touch screens can not achieve high refresh rate and can support the function of a handwriting pen. The foregoing is provided merely for the purpose of facilitating understanding of the technical solutions of the present invention and is not intended to represent an admission that the foregoing is prior art. Disclosure of Invention The invention mainly aims to provide a method and a device for adjusting a refresh rate of a display screen, the display screen and a storage medium, and aims to solve the technical problem that a part of touch screens in the prior art can not achieve a high refresh rate and can support the function of an active capacitance pen. In order to achieve the above object, the present invention provides a method for adjusting a refresh rate of a display screen, the method for adjusting a refresh rate of a display screen comprising the steps of: when the display screen works, detecting a response signal of the active capacitance pen; And when the response signal is not detected, adjusting the refresh rate of the display screen so as to enable the display screen to be in a high refresh rate mode. Optionally, when the display screen works, detecting a response signal of the active capacitance pen includes: When the display screen works, an identification signal is sent to the active capacitance pen, so that the active capacitance pen outputs a response signal based on the identification signal; And detecting a response signal output by the active capacitance pen. Optionally, after detecting the response signal of the active capacitance pen when the display screen works, the method further includes: and when the response signal is detected, the refresh rate of the display screen is adjusted so as to enable the display screen to be in a low refresh rate mode. Optionally, when the response signal is detected, the refresh rate of the display screen is adjusted, so that the display screen is in a low refresh rate mode, including: when the response signal is detected, checking whether a hash relation exists between the response signal and the identification signal; If yes, the active capacitance pen function is started, and the refresh rate of the display screen is adjusted so that the display screen is in a low refresh rate mode. Optionally, the sending the identification signal to the active capacitive pen includes: And modulating an identification signal in a preset mode and then sending the identification signal to the active capacitance pen, wherein the identification signal comprises bit data identified by the active capacitance pen. Optionally, the response signal is the identification signal after the hash operation. Optionally, when the answer signal is not d