noun
photo exhibition; photography exhibition
A public display of photographs, often held in galleries, museums, or community spaces.
来月、駅前のギャラリーで写真展が開かれる。
A photo exhibition will be held at the gallery in front of the station next month.
彼女の写真展には多くの来場者が訪れた。
Many visitors came to her photography exhibition.
展示会 is a broader term for any exhibition or trade show, not limited to photography.
Compound of 写真 (photograph) and 展 (exhibition), a straightforward modern coinage.