Manufacturing processes of backplane for segment displays
AssigneeSiPix Imaging, Inc.
InventorsGary Y. M. Kang, Ryne M. H. Shen, Fei Wang, Yi-Shung Chaug
Life of this patent
Estimating the term…
Abstract
The present invention relates to design and processes for the manufacture of backplane for segment displays. The process comprises: a) forming conductive lines on a non-conductive substrate layer; b) covering the conductive lines with a photoimageable material; c) forming conductive areas connected to the conductive lines and embedded in the photoimageable material; d) plating a conductive material over the photoimageable material to form segment electrodes; and e) optionally filling gaps between said segment electrodes with a thermal or radiation curable material followed by hardening said thermal or radiation curable material.
Claims16
A process for plugging gaps between segment electrodes in a direct drive display comprising display cells filled with an electrophoretic fluid wherein said electrophoretic fluid comprises charged pigment particles dispersed in a solvent, which process comprises the following steps in sequence:
- a) applying a thermal or radiation curable material in a liquid form to the top surface of the segment electrodes,
- b) laminating a release film over the top surface to squeeze the material into the gaps between the segment electrodes and controlling the lamination pressure with a nip roller,
- c) hardening the thermal or radiation curable material, and
- d) removing the release film after hardening of the thermal or radiation curable material.
A process for the manufacture of a backplane for a direct drive display comprising display cells filled with an electrophoretic fluid wherein said electrophoretic fluid comprises charged pigment particles dispersed in a solvent, which process comprises the following steps in sequence:
- a) forming conductive lines on a non-conductive substrate layer;
- b) covering the conductive lines with a photoimageable material;
- c) removing the photoimageable material in areas connected to the conductive lines to form open areas;
- d) leveling the open areas with a first conductive material to form conductive areas embedded in the photoimageable material;
- e) forming segment electrodes by plating a second conductive material over the photoimageable material;
- f) applying a thermal or radiation curable material in a liquid form to the top surface of the segment electrodes;
- g) laminating a release film over the top surface to squeeze the material into gaps between the segment electrodes and controlling the lamination pressure with a nip roller;
- h) hardening the thermal or radiation curable material;
- and
- i) removing the release film after hardening of the thermal or radiation curable material.
A process for the manufacture of a backplane for a direct drive display comprising display cells filled with an electrophoretic fluid wherein said electrophoretic fluid comprises charged pigment particles dispersed in a solvent, which process comprises the following steps in sequence:
- a) forming via holes on a non-conductive substrate layer laminated or coated with a conductive material on both sides of the non-conductive substrate layer;
- b) filling the via holes with a conductive paste;
- c) forming segment electrodes on the conductive material laminated or coated on one side of the non-conductive substrate layer and forming conductive lines on the conductive material laminated or coated on the other side of the non-conductive substrate layer;
- d) applying a thermal or radiation curable material in a liquid form to the top surface of the segment electrodes;
- e) laminating a release film over the top surface to squeeze the material into gaps between the segment electrodes and controlling the lamination pressure with a nip roller;
- f) hardening the thermal or radiation curable material;
- and
- g) removing the release film after hardening of the thermal or radiation curable material.
Dependencies are inferred from the claim text.