Abstract: The technology of this application relates to a frontlight module and a display apparatus. The frontlight module is disposed on a side of a display panel. The frontlight module includes a light source, a light guide plate, and light guide dots. The light guide plate includes a first surface and a second surface that are disposed opposite to each other. The display panel is disposed facing the second surface. The light source is disposed on a side surface of the light guide plate. A plurality of light guide dots are disposed on the first surface or the second surface of the light guide plate. Each light guide dot has a light guide surface disposed at an angle with respect to a surface of the light guide plate. Light is fully reflected and/or refracted on the light guide surfaces to propagate to the display panel.

Abstract: Disclosed is a sub-Kelvin temperature zone refrigeration mechanism. The sub-Kelvin temperature zone refrigeration mechanism includes a pulse tube refrigeration unit, first pre-cooling heat exchangers, a throttling refrigeration unit, second pre-cooling heat exchangers, an adsorption refrigeration unit, a third pre-cooling heat exchanger and a dilution refrigeration unit. The pulse tube refrigeration unit includes a pulse tube refrigeration part. The throttling refrigeration unit includes a throttling refrigeration part, and the throttling refrigeration part is connected with the adsorption refrigeration unit through the second pre-cooling heat exchangers so as to pre-cool the adsorption refrigeration unit. The adsorption refrigeration unit includes an adsorption refrigeration part, and the adsorption refrigeration part is connected with the dilution refrigeration unit through the third pre-cooling heat exchanger.