Transparent display panel and electronic device

A transparent display panel, comprising:

• a first substrate, a second substrate, and a liquid crystal layer located between the first substrate and the second substrate, wherein the first substrate has a first display surface away from the second substrate, a first surface facing the second substrate, and a first light incident surface located between the first display surface and the first surface, the second substrate has an edge extension portion located on a same side of the transparent display panel as the first light incident surface of the first substrate, and an orthographic projection of the first substrate on a surface, facing the first substrate, of the second substrate does not overlap the edge extension portion;
• a first light source assembly located on a first side, where the first light incident surface is located, of the first substrate;
• a second light source assembly located on a second side opposite to the first side of the first substrate where the first light source assembly is located;
• a first light guide bar located between the first light source assembly and the first light incident surface, wherein the first light guide bar has a first light guide bar surface facing the first light incident surface, a second light guide bar surface away from the first light incident surface, and a first light guide bar slope surface located between the first light guide bar surface and the second light guide bar surface, and an inner angle formed between the first light guide bar slope surface and the second light guide bar surface is less than or equal to 90 degrees;
• and
• a fixing frame configured to fix the first light guide bar to the first substrate and the second substrate, wherein the fixing frame comprises a positioning surface matched with the first light guide bar slope surface of the first light guide bar, and the positioning surface and the first light guide bar slope surface are inclined surfaces having a same inclination angle.