Flexible liquid crystal panel and manufacture method thereof

Patent metadata

Field	Value
Publication number	US-2016341992-A1
Application number	US-201514423705-A
Country	US
Kind code	A1
Filing date	Feb 9, 2015
Priority date	Nov 24, 2014
Publication date	Nov 24, 2016
Grant date	—

Abstract

The present invention provides a flexible liquid crystal panel and a manufacture method thereof. The flexible liquid crystal panel comprises a first, a second flexible substrates ( 1, 3 ) oppositely located, a first, a second flat layers ( 11, 31 ) respectively located at an inner sides of the first, the second flexible substrates ( 1, 3 ), a color filter layer ( 33 ) located between the second flexible substrate ( 3 ) and the second flat layer ( 31 ), a spacing retaining wall ( 5 ) located on the second flat layer ( 31 ), seal glue ( 7 ) coated on a side of the spacing retaining wall ( 5 ) close to the first flexible substrate ( 1 ) and a liquid crystal layer ( 9 ); the spacing retaining wall ( 5 ) comprises a plurality of transverse parts ( 51 ) parallel with one another extending transversely and a plurality of longitudinal parts ( 53 ) parallel with one another extending longitudinally, and the transverse parts ( 51 ) and the longitudinal parts ( 53 ) interlace with one another to separate a plurality of sub pixels, and the liquid crystal layer ( 9 ) is filled in closed districts formed by the transverse parts ( 51 ) and the longitudinal parts ( 53 ) interlacing with one another.

First claim

What is claimed is:

1 . A flexible liquid crystal panel, comprising a first flexible substrate and a second flexible substrate oppositely located with the first flexible substrate, a first flat layer located at an inner side of the first flexible substrate, a second flat layer located at an inner side of the second flexible substrate, a color filter layer located between the second flexible substrate and the second flat layer, a spacing retaining wall located on the second flat layer, seal glue coated on a side of the spacing retaining wall close to the first flexible substrate and employed for adhering the first flat layer and a liquid crystal layer filled between the first flat layer and the second flat layer;
the spacing retaining wall comprises a plurality of transverse parts parallel with one another extending transversely and a plurality of longitudinal parts parallel with one another extending longitudinally, and the transverse parts and the longitudinal parts interlace with one another to separate a plurality of sub pixels, and the liquid crystal layer is filled in closed districts formed by the transverse parts and the longitudinal parts interlacing with one another.

2 . The flexible liquid crystal panel according to claim 1 , wherein both the first flexible substrate and the second flexible substrate are plastic substrates.

3 . The flexible liquid crystal panel according to claim 1 , wherein the seal glue is UV curing and heat curing complex glue, and is cured by a complex way of UV curing and heat curing;
the compositions of the seal glue are prepolymer resin, viscosity modifier, photoinitiator, heat curing agent and filler; a ratio of total weight of the prepolymer resin is 10%-60%, and the prepolymer resin comprises one or many of prepolymer resins having polymerizable group, wherein the at least one prepolymer resin comprises acrylate group of UV curing and epoxy group of heat curing; a ratio of total weight of the viscosity modifier is 5%-30%, and the viscosity modifier is reactive monomer having polymerizable group which the molecular weight is smaller and the viscosity is lower; a ratio of total weight of the photoinitiator is 0.05%-1%, and the photoinitiator is a CIBA IRGACURE series of photoinitiator; a ratio of total weight of the heat curing agent is 10%-40%, and the heat curing agent is a compound of Anhydride series or Amine series; a ratio of total weight of the filler is 5%-20%, and the filler is inorganic granular substance of silicon dioxide, aluminum oxide, zinc oxide, titanium oxide, magnesium oxide, calcium sulfate, aluminum nitride or silicon nitride.

4 . The flexible liquid crystal panel according to claim 1 , further comprising a lower polarizer adhered at an outer side of the first flexible substrate, and an upper polarizer adhered at an outer side of the second flexible substrate.

5 . The flexible liquid crystal panel according to claim 1 , further comprising gate lines, data lines, TFTs and ITO pixel electrodes located at the inner side of the first flexible substrate; an ITO common electrode located at the inner side of the second flexible substrate.

6 . The flexible liquid crystal panel according to claim 1 , wherein the spacing retaining wall is manufactured by photo process; the seal glue is coated by transfer printing; the liquid crystals of the liquid crystal layer are injected by spraying.

7 . A manufacture method of a flexible liquid crystal panel, comprising steps of:
step 1 , providing a first flexible substrate and a second flexible substrate, and respectively adhering the first, the second flexible substrates with a first, a second glass substrates; step 2 , manufacturing gate lines, data lines, TFTs and ITO pixel electrodes at an inner side of the first flexible substrate, and deposing a first flat layer; manufacturing a color filter layer and an ITO common electrode at an inner side of the second flexible substrate, and deposing a second flat layer; step 3 , manufacturing a spacing retaining wall on a second flat layer at a side of the second flexible substrate; the spacing retaining wall comprises a plurality of transverse parts parallel with one another extending transversely and a plurality of longitudinal parts parallel with one another extending longitudinally, and the transverse parts and the longitudinal parts interlace with one another to separate a plurality of sub pixels; step 4 , coating seal glue at a side of the spacing retaining wall away from the second flexible substrate; step 5 , filling liquid crystals in closed districts formed by the transverse parts and the longitudinal parts of the spacing retaining wall interlacing with one another to form a liquid crystal layer; step 6 , oppositely vacuum laminating the first flexible substrate and the second flexible substrate; step 7 , curing the seal glue in a double way of UV irradiation and heating; step 8 , stripping the fist, the second glass substrates.

8 . The manufacture method of the flexible liquid crystal panel according to claim 7 , further comprising a step 9 , respectively adhering a lower polarizer and an upper polarizer at outer sides of the first flexible substrate and the second flexible substrate.

9 . The manufacture method of the flexible liquid crystal panel according to claim 7 , wherein both the first flexible substrate and the second flexible substrate are plastic substrates.

10 . The manufacture method of the flexible liquid crystal panel according to claim 7 , wherein the spacing retaining wall is manufactured by photo process; the seal glue is coated by transfer printing; the liquid crystals are injected to form the liquid crystal layer by spraying;
the seal glue is UV curing and heat curing complex glue, and is cured by a complex way of UV curing and heat curing; the compositions of the seal glue are prepolymer resin, viscosity modifier, photoinitiator, heat curing agent and filler; a ratio of total weight of the prepolymer resin is 10%-60%, and the prepolymer resin comprises one or many of prepolymer resins having polymerizable group, wherein the at least one prepolymer resin comprises acrylate group of UV curing and epoxy group of heat curing; a ratio of total weight of the viscosity modifier is 5%-30%, and the viscosity modifier is reactive monomer having polymerizable group which the molecular weight is smaller and the viscosity is lower; a ratio of total weight of the photoinitiator is 0.05%-1%, and the photoinitiator is a CIBA IRGACURE series of photoinitiator; a ratio of total weight of the heat curing agent is 10%-40%, and the heat curing agent is a compound of Anhydride series or Amine series; a ratio of total weight of the filler is 5%-20%, and the filler is inorganic granular substance of silicon dioxide, aluminum oxide, zinc oxide, titanium oxide, magnesium oxide, calcium sulfate, aluminum nitride or silicon nitride.

11 . A manufacture method of a flexible liquid crystal panel, comprising steps of:
step 1 , providing a first flexible substrate and a second flexible substrate, and respectively adhering the first, the second flexible substrates with a first, a second glass substrates; step 2 , manufacturing gate lines, data lines, TFTs and ITO pixel electrodes at an inner side of the first flexible substrate, and deposing a first flat layer; manufacturing a color filter layer and an ITO common electrode at an inner side of the second flexible substrate, and deposing a second flat layer; step 3 , manufacturing a spacing retaining wall on a second flat layer at a side of the second flexible substrate; the spacing retaining wall comprises a plurality of transverse parts parallel with one another

Assignees

• Shenzhen China Star Optoelect
• Shenzhen China Star Optoelect

Inventors

• Lee Yungjui
• Zhong Xinhui

Classifications

• G02F1/133305 Primary

  Flexible substrates, e.g. plastics, organic film · CPC title

• G02F1/13394 Primary

  spacers regularly patterned on the cell subtrate, e.g. walls, pillars (G02F1/133377 takes precedence) · CPC title

• G02F1/1339 Primary

  Gaskets; Spacers; Sealing of cells · CPC title

• G02F1/1368

  in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)} · CPC title

• G02F1/136286

  Wiring, e.g. gate line, drain line · CPC title