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Method for manufacturing plastic substrate and plastic substrate manufactured thereby

A plastic base and substrate technology, applied in the field of manufacturing plastic substrates, can solve the problems of poor physical properties such as surface flatness and thickness uniformity, and achieve the effect of excellent thickness uniformity and surface flatness

Active Publication Date: 2022-04-05
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In the case of a plastic substrate used instead of a glass substrate, there is a problem that physical properties such as surface flatness and thickness uniformity are much worse than those of a glass substrate in the related art, and therefore, a method for improving the problems is required. Research

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  • Method for manufacturing plastic substrate and plastic substrate manufactured thereby
  • Method for manufacturing plastic substrate and plastic substrate manufactured thereby

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Embodiment Construction

[0025] Throughout this specification, unless explicitly stated to the contrary, the case of a part "comprising" an element will be understood as implying the inclusion of the element but not excluding any other element.

[0026] In this specification, it will be understood that when an element is referred to as being "on" another element, it may be directly on the other element or intervening elements may also be present.

[0027] In this specification, the term "step of (of)" or "step of ..." is used to the degree that it does not mean "step for".

[0028] The present inventors developed the present invention by realizing that there is a problem that when a curable composition is injected into a mold and then cured to manufacture a plastic substrate, the curable composition is released from the mold during curing due to curing shrinkage of the curable composition. The substrate peels off, thus leaving peeling marks on the surface of the manufactured plastic substrate and grea...

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PUM

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Abstract

The present specification relates to a method for producing a plastic substrate having excellent thickness uniformity and a plastic substrate having excellent thickness uniformity produced thereby.

Description

technical field [0001] This specification claims priority and benefit from Korean Patent Application No. 10-2017-0145903 filed with the Korean Intellectual Property Office on November 3, 2017, the entire contents of which are incorporated herein by reference. The present invention relates to a method of manufacturing a plastic substrate and a plastic substrate manufactured thereby. Background technique [0002] Recently, devices for providing three-dimensional images to users have been developed using virtual reality devices and augmented reality devices. [0003] A virtual reality device or an augmented reality device forms a diffractive light guide pattern in a lens such as general glasses to display a desired image to a user. Generally, lenses for virtual reality devices or augmented reality devices use glass substrates with a high refractive index, and the glass substrate has the advantages of high refractive index and high light transmittance, but it may cause severe d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C65/70B29C43/18B29C43/20
CPCB29C43/18B29C43/20B29C65/70G02B1/041B29C2043/3205B29C43/32C08L75/04C08L81/00B29C43/206B29C43/02B29L2011/0016G02B1/045
Inventor 金永锡金惠珉金芙儆长影来金泳台金芝英
Owner LG CHEM LTD