摘要:
A positively working photosensitive composition is disclosed useful for making positively working lithographic printing plates of exceptional wear, printing and solvent-resistant characteristics. The positively working photosensitive composition essentially contains a .beta.-dicarbonyl group and a quinone diazide group.
摘要:
An aqueous alkali developable photoresist composition consists of (a) a carboxyl group-containing polymeric binder, (b) 1-15% by weight of a photoinitiator based on the binder, (c) 20-100% by weight based on the binder, of a photo reactive monomer or oligomer containing at least two ethylenically unsaturated double bonds, and (d) 0.05-5% by weight based on the binder of a weak alkali soluble or dispersible thiol compound represented by(X).sub.a R--SH).sub.bwhere a, b are integers equal to or greater than 1, R is an organic moiety of molecular weight less than 500, and X is a carboxyl group-containing moiety or hydrophilic organic polymeric segment with less than 100 repeating unit.
摘要:
Disclosed is a photosensitive quinone diazide compound for the preparation of a two component positive working photosensitive electrodeposition composition. As the photosensitive group is grafted on a polyurethane, the photosensitive compound thus synthesized has good flexibility and good compatability with acrylic resin. The electrodeposition composition also has good adhesion to the metal base plate when it is coated thereon by electrodeposition means.
摘要:
A method for making color filters containing a color matrix with at least three desired colored layers comprising the steps of: (a) forming a positive energy-accumulable photoresist layer on a transparent electrically conductive substrate; (b) pre-conditioning the energy-accumulable photoresist layer to form at least three regions of different initial levels of exposure energy, from a highest to a lowest; (c) using a developer solution to develop and remove the region of the photoresist layer with the highest level of initial exposure energy to thereby cause a corresponding area of the electrically conductive substrate underlying the photoresist to be uncovered; (d) electrodepositing a photo-curable resin of a desired color and a predetermined exposure energy required for curing onto the uncovered area of the substrate; (e) overall-exposing the photoresist layer to a light source so as to impart an incremental exposure energy to all regions of the photoresist layer; (f) using a developer solution to develop and remove the region of the photoresist layer which has accumulatively attained the full exposure energy in step (e) and uncover a corresponding area on the substrate; (g) electrodepositing a photo-curable resin of another desired color onto the uncovered area of the substrate formed in step (f); and (h) repeating steps (e) through (g) until all the desired colored layers are selectively developed on the substrate. The incremental exposure energy is provided in step (e) such that: (i) it enables a region with a next highest initial exposure energy to attain full exposure energy, and (ii) it equals to or exceeds the exposure energy required for curing the photo-curable resin to thereby, at the same time, cause the photo-curable resin to become hardened.
摘要:
An electrophoretic positive working photosensitive composition for producing a photoresist pattern on metal base plate comprises a photosensitive compound, in which a photosensitive quinone diazide group is grafted on a polyester, and an acrylic copolymer containing carboxyl group, the composition forms a smooth photoresist film on the plate and has a good adhesion to the surface that no pinehole is found.
摘要:
A resin composition, a resin and a method for manufacturing the same. The resin composition includes a plant oil derivative, and a multifunctional carboxylic acid, anhydride compound or a copolymer containing anhydride. The multifunctional carboxylic acid, the anhydride compound or the copolymer containing anhydride has an amount of 5-60 parts by weight relative to 100 parts by weight of the plant oil derivative.
摘要:
Fabrication device of organic light emitting diode (OLED) includes a Substrate, a transparent conductive layer, an insulating film layer, an organic light-emitting layer, and a conductive layer; when a suitable potential is applied thereto, an organic light-emitting layer emits a visible light, however, it usually occurs breakdown between cathode and anode or bad signal, therefore, the present invention provides a positive insulating film photoresist with an easily inclining obtuse angle, smooth surface, and easily controlled fabrication condition to cover the edge of a transparent electrode (anode) in order to avoid that when the edge of ITO transparent electrode is sharp it causes an organic light-emitting layer film breakdown and results from signal lost or weaken to increase the yields.
摘要:
The invention discloses a method of forming via-holes in multilayer circuit boards. The process includes forming covering substances in predetermined spots in a multilayer circuit board and thereafter applying an insulating layer upon the circuit board. The predetermined spots are then uncovered and the covering substances are removed to form via-holes.
摘要:
An organic electroluminescent device. The device has an organic electroluminescent light recovery layer consisting of dielectric material and nanoscale metal particles or organic material and nanoscale metal particles. The membrane of the organic electroluminescent light recovery layer cross couples with surface plasmon resonance and recovers light trapped in the device, enhancing the light emission efficiency of the organic electroluminescent device.
摘要:
An improved method is disclosed for making color filters via electrodeposition or lithographic electrodeposition of a plurality of colored resins onto an electrically conductive substrate. The method comprises the steps of: (a) forming a black-hued pattern on the substrate; (b) dividing the substrate into an intended zone and a conjugate zone, the intended zone being portions of the substrate to be deposited with the colored resins and the conjugate zone being portions of the substrate not to be deposited with the colored resins; (c) forming a permanent insulation film on the conjugate zone of the substrate; and (d) electrodepositing the colored resins onto the intended zone of the substrate. The photosensitive insulation resin is preferably a negative photosensitive resin containing: (i) a resin binder containing a carboxyl (COOH) group; (ii) 1-15 wt %, based on the weight of the resin binder, of a photopolymerization initiator; and (iii) 30-100 wt %, based on the weight of the resin binder, of a photo-reactive monomer or oligomer each containing at least two unsaturated double bonds.