Composition, black matrix and preparation method thereof, display devices

A display device and composition technology, which is applied to opto-mechanical equipment, photo-engraving process of pattern surface, optics, etc., can solve the problem of high post-baking temperature, low black matrix resistance, post-baking temperature that cannot be used in OLED display devices and Flexible display devices and other problems, to achieve the effect of complete polymerization, overcoming undercutting, and stable cured film
CN104808441AInactive Publication Date: 2015-07-29BEIJING SINEVA TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING SINEVA TECH
Publication Date
2015-07-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a black photoresist composition, a black matrix and a preparation method thereof, an OLED display device, an LCD display device and a flexible display device. The black photoresist composition comprises the following components: 30-35 parts of a monomer solid substance, 25-35 parts of a resin solid substance, 20-30 parts of a black liquid pigment solid substance, 6-20 parts of initiating agents and 5-10 parts of additives, wherein the initiating agents comprise thermal initiating agents and a photoinitiator. The black matrix is prepared from the black photoresist composition. Each of the OLED display device, the LCD display device and the flexible display device comprises the black matrix. When the black photoresist composition is used for preparation of the black matrix and the post-baking operation is cooled to 180 DEG C or lower, the prepared black matrix is 7 magnitudes higher than the conventional black matrix, and can be applied to the OLED display device, the LCD display device and the flexible display device.
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Description

technical field

[0001] The invention relates to the field of liquid crystal display, in particular to a black photoresist composition, a black matrix and a preparation method, an OLED display device, an LCD display device and a flexible display device. Background technique

[0002] The black matrix is ​​used for shading in the traditional liquid crystal display field. In its traditional preparation method, the post-baking operation temperature is controlled at more than 230°C to completely polymerize the monomers in the black photoresist composition and completely cure the black light-shielding film, thereby ensuring black Film-forming stability, alkali resistance and chemical resistance of the matrix.

[0003] However, the traditional high-temperature post-baking preparation method has the following problems:

[0004] (1) The high-temperature post-baking method reduces the resistance of the black matrix. If the resistance of the black matrix is ​​too low, the orientation o...

Claims

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