Patent ID: 11915642
Assignee: YUNGU (GU'AN) TECHNOLOGY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A display device, comprising:
a display unit, wherein the display unit comprises blue sub-pixels;
a first logic control unit, which is configured to receive image display data for instructing the display unit to display a static image in a local area, wherein a transmission frequency of replacement display data is a preset maintenance frequency, and the replacement display data is used to enable the display unit to display a replacement color image in the local area;
a light-emitting driving unit configured to alternately receive the replacement display data and the image display data from the first logic control unit after the local area maintains displaying the static image beyond a first threshold duration, which is respectively connected to the first logic control unit and the display unit, and is configured to respond to the data received from the first logic control unit, and control the display unit to display the static state image or the replacement color image;
a first timing unit configured to respond to the image display data received by the first logic control unit and measure a duration that the local area maintains displaying the static image to obtain a first display duration; and
a second timing unit configured to accumulate a luminescence duration of the display unit to obtain an accumulative luminescence duration and implement a switching control of the blue sub-pixels,
wherein the blue sub-pixels comprise both original blue sub-pixels and spare blue sub-pixels, and
the display device further comprises a second logic control unit, configured to transmit a spare switching instruction to the light-emitting driving unit after it is determined that an accumulative luminescence duration of the display unit exceeds a second threshold duration; and the light-emitting driving unit is further configured to:
transmit drive information to the original blue sub-pixels before receiving the spare switching instruction,
respond to the spare switching instruction after receiving the spare switching instruction,
transmit the drive information to the spare blue sub-pixels, and
perform luminescence by replacing the original blue sub-pixels with the spare blue sub-pixels; and
the second logic control unit comprises:
a second control unit configured to acquire the accumulative luminescence duration of the display unit from the second timing unit, and judge whether the accumulative luminescence duration is greater than or equal to the second threshold duration,
when the accumulative luminescence duration is greater than or equal to the second threshold duration, transmit the spare switching instruction to the light-emitting driving unit.