Light-emitting unit, assembly, circuit and display device

A light-emitting unit comprises a first switch tube, a second switch tube, an LED chip array and a first storage capacitor. A grid electrode of the first switch tube is a scanning signal input end; asource electrode of the first switch tube is a data signal input end; the positive electrode of the LED chip array is a power supply signal input end; the drain electrode of the second switch tube isgrounded, and the LED light source is a high-voltage light source, accordingly the working voltage of a light-emitting part of the LED light source is increased, the working current is reduced to reduce the power consumption of the switch tube for driving the LED, and the overall power consumption is reduced. 一种发光单元包括第一开关管、第二开关管、LED芯片阵列及第一存储电容，所述第一开关管的栅极为扫描信号输入端，所述第一开关管的源极为数据信号输入端，所述LED芯片阵列的正电极为电源信号输入端，所述第二开关管的漏极接地，LED光源为高压光源，提升其发光部件工作电压，降低工作电流以降低驱动LED的开关管的功耗，从而降低整体功耗。