Liquid crystal display panel and liquid crystal display device

A liquid crystal display device including a liquid crystal display panel, wherein the liquid crystal display panel comprises:

• a first substrate;
• a second substrate;
• a liquid crystal layer sandwiched between the first substrate and the second substrate;
• and
• an auxiliary electrode disposed on one side of the liquid crystal layer facing away the first substrate and coupled to a reference voltage,
• wherein:
• the first substrate includes a plurality of gate electrode lines, a plurality of data lines, the plurality of gate electrode lines intersecting the plurality of data lines to define a plurality of pixel units, a plurality of pixel electrodes and a plurality of common electrodes being insulated from the plurality of pixel electrodes,
• the second substrate includes a base substrate and a black matrix layer disposed on one side of the base substrate facing towards the liquid crystal layer, and the auxiliary electrode is sandwiched between the black matrix layer and the base substrate,
• in each region corresponding to one pixel unit, a pixel electrode and a common electrode are configured to form an electric field that drives the liquid crystal layer,
• a vertical projection of the auxiliary electrode on the first substrate covers an area where the electric field is formed by the pixel electrode and the common electrode,
• the auxiliary electrode is electrically connected to the common electrode through a golden ball, a vertical projection of the golden ball on the first substrate non-overlapping with the pixel electrode, and
• a thickness of the liquid crystal layer is less than or equal to 3.2 μm.