KR970028777A - Manufacturing method of polymer dispersed liquid crystal display device - Google Patents

Abstract

The present invention relates to a polymer dispersed liquid crystal display (PD LCD), and as described above, a liquid crystal mixed with a polymer is injected into a cell gap of a PD LCD panel according to the present invention, and during or after the curing process of the polymer. When pressure is applied to the upper and lower liquid crystal substrates, the orientation of the liquid crystals scattered inside the polymer layer in the form of droplets is improved, and thus the light transmittance and contrast of the PD LCD are improved by about 5 to 40%.

Description

Manufacturing method of polymer dispersed liquid crystal display device

As this is a public information case, the full text was not included.

Figure 1a is a schematic diagram for explaining the liquid crystal state in the polymer cured state in the manufacturing method of the polymer dispersed liquid crystal display device according to the present invention.

1B is a schematic diagram for explaining a liquid crystal state in a state where a polymer layer is stretched in the method of manufacturing a polymer dispersed liquid crystal display according to the present invention.

Figure 2a is a schematic diagram for explaining the state of the liquid crystal is not applied to the polymer dispersed liquid crystal display device formed in accordance with the present invention.

Figure 2b is a schematic diagram for explaining the state of the liquid crystal applied voltage to the polymer dispersed liquid crystal display device formed in accordance with the present invention.

Claims (9)

Bonding the upper and lower liquid crystal substrates with a failed turn, injecting and sealing a ferroelectric liquid crystal mixed with a polymer into the cell gap between the upper and lower liquid crystal substrates, and solidifying the polymer to form a liquid crystal in the polymer layer. And a step of applying the pressure to the upper and lower liquid crystal substrates so that the polymer layer extends in one direction. The method of manufacturing a polymer dispersed liquid crystal display device according to claim 1, wherein the polymer is a thermosetting or photocurable polymer. The method of claim 2, wherein the polymer is a thermosetting polymer, and a polymer which is cured by heat treatment at a temperature of about 100 to 200 ° C is used. The method of manufacturing a polymer dispersed liquid crystal display device according to claim 1, wherein the liquid crystal is a nematic liquid crystal. Bonding the upper and lower liquid crystal substrates with a failed turn, injecting a ferroelectric liquid crystal mixed with a polymer into the cell gap between the upper and lower liquid crystal substrates, and sealing the polymer to perform a curing process to cause the liquid crystal to be polymerized. And a step of applying a pressure to the upper and lower liquid crystal substrates in the middle of the polymer curing process so as to extend in one direction of the polymer layer. Manufacturing method. The method of manufacturing a polymer dispersed liquid crystal display device according to claim 5, wherein the polymer is a thermosetting or photocurable polymer. The method of claim 5, wherein the polymer is a thermosetting polymer, and a polymer which is cured by heat treatment at a temperature of about 100 ° C. to about 200 ° C. is used. The method for manufacturing a polymer dispersed liquid crystal display according to claim 5, wherein the liquid crystal is a nematic liquid crystal. The method of claim 5, wherein a pressure is applied in a state in which the curing process of the polymer is performed by about 40 to 70%. ※ Note: The disclosure is based on the initial application.