Flexible color filter and method of manufacturing

A color filter, flexible technology, used in instruments, filters, nonlinear optics, etc., can solve problems such as limitations and low flexibility

Inactive Publication Date: 2019-09-13
ARES MATERIALS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the low flexibility of glass limits the use of glass as a substrate material for color filters in flexible displays

Method used

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  • Flexible color filter and method of manufacturing
  • Flexible color filter and method of manufacturing
  • Flexible color filter and method of manufacturing

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0014] In the preparation of the polymer resin, the multifunctional thiol monomer and comonomer can be mixed, and the polymer resin can be injected into a reservoir (eg, a pressurized reservoir). Uniform sheet production can be performed on polymeric resins and by any adequate method including, but not limited to, slot die coating, rod coating, blade coating, spin coating, reaction injection molding or any combination thereof. The polymeric resin can be cured using electromagnetic radiation, such as heat, visible light, ultraviolet light, or any combination thereof. The polymer cured resin has a transparency of greater than 90% in the visible range and a haze of less than 1%. This is a desirable property for color filter substrates because light transmission directly affects the image quality and power consumption of LCD displays.

[0015] A black matrix pattern is used to prevent light leakage, so the backlight only passes through the desired sub-pixels. The black matrix p...

Embodiment 1

[0032] A 370mm x 470mm glass panel is used as a carrier. A thin release layer is deposited by dye coating and baked to remove solvent. A 50 μm layer of polymer resin was slot-die coated on top of the thin release layer and cured at 250° C. while irradiating with UV light for 1 hour. After curing the polymer resin, a 1.4 μm layer of photosensitive black ink was coated on the polymer resin by spin coating. The samples were then baked at 100 °C for 2 min to remove the solvent. Subsequently, a photomask was used to block UV light having a wavelength of 365 nm (i-line), followed by development to pattern the black matrix onto the polymer resin. The resulting samples were baked at 200°C for 2 minutes for a hard bake. After the hard-baking step, a layer of red resist was spin-coated on the sample with a thickness of 1.2 μm. The resulting samples were then baked at 100°C for 2 minutes for curing. A photomask is used to pattern the locations of the red subpixels on the black matri...

Embodiment 2

[0034] The procedure of Example 1, where an extra subpixel is used for yellow in RGBY configuration.

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Abstract

Provided are flexible color filters and methods of manufacturing flexible color filters. An example flexible color filter comprises a transparent flexible substrate comprising a thermoset thiol-clickpolymer. An example method of manufacturing a flexible color filter comprises dispensing a release layer on a stiff carrier substrate; dispensing a polymer resin on the release layer; curing the polymer resin into a transparent film; fabricating a flexible color filter on the transparent film; and removing the flexible color filter from the release layer and stiff carrier substrate.

Description

Background technique [0001] Color filters are a widely used component of display modules utilizing liquid crystal, electrophoresis, (organic) light emitting diodes or any other technology for filtering a white light source into multiple bands of monochromatic light. Previously, glass has been used to manufacture the substrates for these color filters due to its transparency, chemical resistance, and high-temperature dimensional stability. However, the low flexibility of glass limits the use of glass as a substrate material for color filters in flexible displays. Contents of the invention [0002] The presently disclosed subject matter provides novel and advantageous color filters as well as methods of making the same and methods of using them. While traditional methods of fabricating color filters rely on the transparency of glass to minimize light absorption from light sources and improve power efficiency and color fidelity, the present invention proposes the use of novel ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/20G02B5/22B05D1/06C08J7/043C08J7/044
CPCG02B5/223B33Y10/00G02F1/133305G02F1/133516G02B5/201C08J7/043C08J7/0423C08J7/044B29C41/02B29K2995/0026B29L2011/0066C08G75/045C08J5/18C08J2381/02G02F1/133512G03F7/0007
Inventor R·瑞特A·阿万达诺-玻利瓦尔D·阿雷加-萨拉斯
Owner ARES MATERIALS INC
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