Patent ID: 9268169
Filing Date: 2016-02-23
CPC Classification: G02F,G03F,H05B

Claim Text:
1. A manufacturing method of a pixel define layer of a display panel, comprising: step 1: sequentially forming a photosensitive resin layer and a transparent define layer on a substrate; step 2: forming an opening of the photosensitive resin layer and an opening of the transparent define layer in a region corresponding to each pixel region of the display panel, wherein the opening of the transparent define layer is smaller than the opening of the photosensitive resin layer so as to form a fill region with a wide lower portion and a narrow upper portion, wherein the step 2 includes: forming a second photosensitive resin layer on the transparent define layer, and performing a first exposure so that both the second photosensitive resin layer and the photosensitive resin layer under the second photosensitive resin layer in the region corresponding to each pixel region of the display panel are exposed; removing the second photosensitive resin layer; forming a third photosensitive resin layer, and performing a second exposure so that the third photosensitive resin layer in the region corresponding to each pixel region of the display panel is exposed, wherein an exposure region formed by the second exposure is smaller than an exposure region formed by the first exposure; removing the third photosensitive resin layer in the exposure region formed by the second exposure, so as to expose the transparent define layer in this region; removing the exposed transparent define layer, so as to form an opening of the transparent define layer in the region corresponding to each pixel region of the display panel; and removing the photosensitive resin layer in the exposure region formed by the first exposure, so as to form an opening of the photosensitive resin layer in the region corresponding to each pixel region of the display panel.