The present application provides a display device and a manufacturing method thereof. The display device includes a transparent display region and a main display region. The display device further includes a pixel defining layer. The pixel defining layer includes a first pixel defining layer and a second pixel defining layer. The first pixel defining layer is positioned in the transparent display region. The second pixel defining layer is positioned in the main display region. An absorbance of the first pixel defining layer is less than an absorbance of the second pixel defining layer.