US 7,583,333 B2Granted

Process for the production of LCDs

AssigneeLeonhard Kurz Stiftung & Co. KG

InventorsUlrich Schindler, Steffen Weiss

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Abstract

There is described a process for the production of LCDs, in particular PDLCDs, preferably in a roll-to-roll process, wherein in a first process step a first contact layer (12) and a first electrode layer (14) spaced therefrom is applied to a base carrier (10). A first and a second delimitation layer (18, 20) is then applied to the base carrier (10). Thereafter a functional layer (26) comprising a PDLCD mixture provided in a porous support matrix is applied between the first and second delimitation layers (18 and 20). A protective layer (28) is then applied to the functional layer (26) between the first and second delimitation layers (18 and 20) and finally there is applied to the protective layer (28) a second electrode layer (30) which is contacted with the first contact layer (12).

Claims10

Dependent claims

A process for the production of LCDs, in particular PDLCDs, comprising the steps of:

applying a first contact layer and a first electrode layer spaced therefrom by a separation surface to a base carrier,
applying an electrically insulating first delimitation layer to the base carrier at the separation surface and an electrically insulating second delimitation layer to the first electrode layer, wherein a functional region and a second contact surface remote from the first contact layer remains free at the first electrode layer,
applying a functional layer comprising a PDLCD mixture provided in a porous support matrix in the functional region between the first and second delimitation layers and hardening of the functionally layer,
applying a protective layer to the functional layer between the first and second delimitation layers, and
applying a second electrode layer to the protective layer, wherein the second electrode layer projects at the first contact layer beyond the protective layer with a projection portion and the projection portion is contacted by way of a conductive connecting layer portion to the first contact layer.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 11/981,904Filed 1 Nov 2007
Priority: DE 10 2006 052 6068 Nov 2006
Published: US 2008/0170182 A117 Jul 2008
Granted: 1 Sep 2009
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

G02F 1/1334
Constructional arrangements; Manufacturing methods: based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
G02F 1/1341
Constructional arrangements; Manufacturing methods: filling or closing of cells
G02F 1/1345
Constructional arrangements; Manufacturing methods: conductors connecting electrodes to cell terminals
G02F
Optical devices or arrangements for the control of light by modification of