Resist composition for separator formation, separator of EL display device and EL display device

• US 20050236967A1
• Filed: 11/12/2004
• Published: 10/27/2005
• Est. Priority Date: 11/14/2003
• Status: Abandoned Application

• Current Assignee: Tokyo OHKA Kogyo Company Limited
• Original Assignee: Tokyo OHKA Kogyo Company Limited
• Inventors: Uchikawa, Kiyoshi, Sugimoto, Yasuaki
• Application Number:
  US10/985,941
• Publication Number:
  US 20050236967A1
• Time in Patent Office: Days
• US Class Current: 313/498
• CPC Class Codes: H10K 59/122 Pixel-defining structures or layers, e.g. banks
• CPC Class Codes: H10K 59/173 comprising banks or shadow masks
• CPC Class Codes: H10K 71/164 using vacuum deposition

Abstract

Provided are a resist composition for separator formation which can be applied for forming separators in the form including a forward taper shape and a reverse taper shape and can be widely used for production of various organic EL displays, and a separator and an EL display device obtained from this resist composition. A composition containing an alkali-soluble resin, an acid generator, a cross-linking agent and a separator pattern shape controlling agent is used as the resist composition for separator formation of an EL display device and the like. The separator pattern shape controlling agent is preferably constituted of a forward taper controlling agent and a reverse taper controlling agent, and these controlling agents can be composed of an amine and an organic acid.

Claims

1. A resist composition for separator formation suitable for forming a tapered separator comprising an alkali-soluble resin, an acid generator, a cross-linking agent and a separator pattern shape controlling agent.

2. The resist composition for separator formation according to claim 1, wherein said separator pattern shape controlling agent is constituted of a forward taper controlling agent and a reverse taper controlling agent.

3. The resist composition for separator formation according to claim 2, wherein said reverse taper controlling agent is an amine and said forward taper controlling agent is an organic acid.

4. The resist composition for separator formation according to claim 1, wherein the side surface inclination angle of said separator is capable of being controlled at any angles in a range of 50 to 1300 in terms of internal angle, by adjusting the containing ratio of said forward taper controlling agent and said reverse taper controlling agent.

5. A separator for an EL display device, formed from the resist composition for separator formation according to claim 1.

6. An EL display device, having the separator according to claim 5.