Display panel and display device

A display panel, comprising:

• a first substrate and a second substrate;
• a plurality of pixel units disposed between the first substrate and the second substrate, wherein each pixel unit of the plurality of pixel units includes a heating element, a reflective layer, a resonant cavity, and a phase-change material layer, that are sequentially disposed on the first substrate, and each pixel unit of the plurality of pixel units further includes a liquid crystal cell disposed on a side of the second substrate that is adjacent to the first substrate;
• a plurality of first signal lines extending along a row direction and spaced from each other along a column direction, and a plurality of second signal lines extending along the column direction and spaced from each other along the row direction, wherein the plurality of first signal lines and the plurality of second signal lines are disposed on the first substrate, and intersect each other to define the plurality of pixel units;
• and
• a driving circuit in correspondence to each pixel unit of the plurality of pixel units, wherein the driving circuit is located on the first substrate and includes a first driving module and a second driving module, the first driving module drives the heating element to control a state of the phase-change material layer, the second driving module controls deflection of a plurality of liquid crystal molecules in the liquid crystal cell, and the first driving module and the second driving module are connected to a same first signal line of the plurality of first signal lines and a same second signal line of the plurality of second signal lines, wherein:
• the first driving module includes a first terminal and a second terminal;
• and
• the second driving module includes a control terminal, a second input terminal, and a second output terminal, wherein:
• the control terminal of the second driving module is connected to the first terminal of the first driving module.

A display device, comprising:

• a display panel, including:
• a first substrate and a second substrate;
• a plurality of pixel units disposed between the first substrate and the second substrate, wherein each pixel unit of the plurality of pixel units includes a heating element, a reflective layer, a resonant cavity, and a phase-change material layer, that are sequentially disposed on the first substrate, and each pixel unit of the plurality of pixel units further includes a liquid crystal cell disposed on a side of the second substrate that is adjacent to the first substrate, wherein the liquid crystal cell is located on a side of the phase-change material layer away from the resonant cavity;
• a plurality of first signal lines extending along a row direction and spaced from each other along a column direction, and a plurality of second signal lines extending along the column direction and spaced from each other along the row direction, wherein the plurality of first signal lines and the plurality of second signal lines are disposed on the first substrate, and intersect each other to define the plurality of pixel units;
• and
• a driving circuit in correspondence to each pixel unit of the plurality of pixel units, wherein the driving circuit is located on the first substrate and includes a first driving module and a second driving module, the first driving module drives the heating element to control a state of the phase-change material layer, the second driving module controls deflection of a plurality of liquid crystal molecules in the liquid crystal cell, and the first driving module and the second driving module are connected to a same first signal line of the plurality of first signal lines and a same second signal line of the plurality of second signal lines.