WO2026098320 - DYE-PDLC COMPOSITION AND PDLC DIMMING FILM
National phase entry is expected:
Publication Number
WO/2026/098320
Publication Date
15.05.2026
International Application No.
PCT/CN2025/131245
International Filing Date
30.10.2025
Title **
[English]
DYE-PDLC COMPOSITION AND PDLC DIMMING FILM
[French]
COMPOSITION DE COLORANT-PDLC ET FILM DE GRADATION DE PDLC
[Chinese]
一种染料PDLC组合物及PDLC调光膜
Applicants **
BEIJING BAYI SPACE LCD TECHNOLOGY CO., LTD.
Inventors
GAO, Yanli
ZHAO, Yupan
LIU, Youran
CHEN, Maoxian
REN, Jie
Priority Data
202411574509.7
06.11.2024
CN
Application details
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International Searching Authority |
CNIPA
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 1571 | |
| EPO | Filing, Examination, Granting | 11536 | |
| Japan | Filing, Examination, Granting | 2024 | |
| South Korea | Filing, Examination, Granting | 1760 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
21,631
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Abstract[English]
The present disclosure relates to the technical field of dimming films, and in particular to a dye-PDLC composition and a PDLC dimming film. In the present disclosure, a variety of specific dichroic dyes are selected, and by adjusting the ratio of the dyes and the addition ratio of other components, the dichroic dyes used are not prone to precipitation or fading during the preparation of the PDCL dimming film, thus enabling the resulting PDLC light dimming film to have a high off-state haze and a high contrast. Furthermore, the selected dichroic dyes will absorb part of the scattered light, thereby further reducing the on-state haze. Moreover, the use of the composition of the present disclosure to prepare a PDCL dimming film can also greatly increase the full light modulation range of the dimming film, and meet the requirements for the optical modulation range of the dimming films in the art.[French]
La présente divulgation se rapporte au domaine technique des films de gradation, et concerne en particulier une composition de colorant-PDLC et un film de gradation de PDLC. Dans la présente divulgation, différents colorants dichroïques spécifiques sont sélectionnés, et en ajustant le rapport des colorants et le rapport d'addition d'autres composants, les colorants dichroïques utilisés ne sont pas sujets à la précipitation ou à la décoloration pendant la préparation du film de gradation de PDCL, ce qui permet au film de gradation de lumière de PDLC obtenu de présenter un trouble élevé à l'état éteint et un contraste élevé. En outre, les colorants dichroïques sélectionnés absorbent une partie de la lumière diffusée, ce qui permet de réduire davantage le trouble à l'état de marche. De plus, l'utilisation de la composition de la présente invention pour préparer un film de gradation de PDCL permet également d'augmenter considérablement la plage de modulation de la lumière totale du film de gradation, et de répondre aux exigences relatives à la plage de modulation optique des films de gradation dans l'état de la technique.[Chinese]
本公开涉及调光膜技术领域，尤其涉及一种染料PDLC组合物及PDLC调光膜。本公开选用了多种特定的二向色性染料，并通过调控几者之间的配比，以及其他各组分的添加比例，使所选二向色性染料在制备PDCL调光膜的过程中不易析出，不易褪色，进而使得到的PDLC调光膜具有较高的关态雾度以及较高的对比度，且所选二向色性染料会将部分散射光吸收，从而进一步降低开态雾度；此外，采用本公开组合物制备PDCL调光膜还能大幅度提高调光膜的全光调光范围，满足本领域对调光膜调光范围的要求。