CROSS REFERENCES

This application claims priority to Chinese Patent Application No. 201910859706.6, filed on Sep. 11, 2019, which is hereby incorporated by reference in its entirety.

FIELD

The present disclosure relates to the field of display, and particularly to a driving method and driving device of a display panel, and a display device.

BACKGROUND

With the development of display electronic products such as mobile phones, it is a product trend to increase a screen-to-body ratio of an organic light emitting diode display panel, and functional elements, such as a front camera, necessary for mobile phones are sure to become a major factor for restricting the increase of the screen-to-body ratio.

In view of this problem, a solution of an under screen camera has been provided. An application terminal such as a mobile phone includes two display regions, and parts such as the under screen camera and functions are set below one of the display regions. When the same current is loaded to the two display regions, the display region with an under screen sensor (including a camera) has relatively low brightness, so that when this type of display is applied to the application terminal such as the mobile phone, higher current may be provided to the display region with the under screen sensor, or the supplied driving voltage has a larger duty cycle, or the supplied driving voltage is higher in order to ensure that the display has relatively high brightness uniformity.

SUMMARY

Embodiments of the present disclosure provide a driving method and driving device of a display panel, and a display device.

An embodiment of the present disclosure provides a driving method of a display panel, including: monitoring a display mode of the display panel when the display panel displays a picture, and the display panel includes a first display region and a second display region, and the first display region is a semi-transparent region configured to set an under screen sensor; when the display mode is monitored to be a partial display mode, for first pixels in the first display region: calling a pre-stored first gamma curve, generating corresponding display information based on the first gamma curve, and driving the first pixels; for second pixels in the second display region: calling a pre-stored second gamma curve, generating corresponding display information based on the second gamma curve, and driving the second pixels, and a maximum brightness value corresponding to a maximum gray-scale value in the first gamma curve is a first maximum brightness value, and a maximum brightness value corresponding to a maximum gray-scale value in the second gamma curve is a second maximum brightness value, and the first maximum brightness value is less than the second maximum brightness value.

An embodiment of the present disclosure further provides a driving device of a display panel, including: a storing component, configured to store a first gamma curve and a second gamma curve, and a maximum brightness value corresponding to a maximum gray-scale value in the first gamma curve is a first maximum brightness value, and a maximum brightness value corresponding to a maximum gray-scale value in the second gamma curve is a second maximum brightness value, and the first maximum brightness value is less than the second maximum brightness value; a monitoring component, configured to monitor a display mode of the display panel when the display panel displays a picture, and the display panel includes a first display region and a second display region, and the first display region is a semi-transparent region configured to set an under screen sensor; a calling component, configured to call a pre-stored first gamma curve for first pixels in the first display region and call a pre-stored second gamma curve for second pixels in the second display region when the monitoring component monitors that the display mode is a partial display mode; a generating component, configured to generate corresponding display information based on the first gamma curve and drive the first pixels, and generate corresponding display information based on the second gamma curve and drive the second pixels.

An embodiment of the present disclosure further provides a display device, including: a display panel, including a first display region and a second display region, and the first display region is a semi-transparent region configured to set an under screen sensor; a sensor arranged corresponding to the first display region; and the above driving device provided by the embodiment of the present disclosure.

