Joining of pixel wall and photospacers in an electrowetting display

A method for joining a spacer and a pixel wall of an electrowetting display comprising:

• coating a bottom support plate with a first photoresist;
• placing a pixel wall mask over the first photoresist, the pixel wall mask covering a first portion of the first photoresist;
• exposing the pixel wall mask and a second portion of the first photoresist to ultraviolet (UV) light for a first period of time;
• dissolving the second portion of the first photoresist with a developer such that the pixel walls are formed on the bottom support plate;
• coating a top support plate with a second photoresist;
• placing a spacer mask over the second photoresist, the spacer mask covering a first portion of the second photoresist;
• exposing the spacer mask and a second portion of the second photoresist to UV light for a second period of time;
• dissolving the second portion of the exposed second photoresist with a developer such that spacers are formed on the top support plate;
• and
• before the first photoresist and the second photoresist are fully cured,
• aligning the bottom support plate with the top support plate such that bottoms of the spacers are aligned with and touching tops of the pixel walls, and
• joining the spacers with the pixel walls to form joined spacers and pixel walls, the joining including positioning a UV light source above the spacers and the pixel walls, and exposing junctions of the spacers and the pixel walls to UV light output by the UV light source to join the first photoresist and the second photoresist.