Composition for black matrixes, method for preparing the same, display panel and display device

• Main Author: Tian Xiaoxiong
• Format: Patent
• Language: English
• Published: 11.10.2016
• Subjects: BASIC ELECTRIC ELEMENTS; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; SEMICONDUCTOR DEVICES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

There are disclosed a composition for black matrixes, a method for preparing the same, a display panel and a display device. The method for preparing said composition for black matrixes includes pigment dispersion forming process comprising the following steps: stirring the mixture of a carbon black, a dispersion agent, a solvent and a resin having a developing property until well mixed, and then performing a first shaking; adding the solvent continuously, or further adding the resin having a developing property, and performing a second shaking; adding the solvent continuously, and performing a third shaking to obtain the pigment dispersion; wherein, during at least one of the three shakings, a resin for improving the viscosity and the granularity stability was added therein. The obtained black matrixes has a higher electrical conductivity, thus the defects at the time of booting in the current display device can be further reduced or even avoided.