Classifications

• • G—PHYSICS
  • G02—OPTICS
  • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
  • G02B5/00—Optical elements other than lenses
  • G02B5/20—Filters
  • G02B5/201—Filters in the form of arrays
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
  • B41M1/00—Inking and printing with a printer's forme
  • B41M1/10—Intaglio printing ; Gravure printing
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
  • B41M1/00—Inking and printing with a printer's forme
  • B41M1/26—Printing on other surfaces than ordinary paper
  • B41M1/34—Printing on other surfaces than ordinary paper on glass or ceramic surfaces
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
  • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
  • B41M3/003—Printing processes to produce particular kinds of printed work, e.g. patterns on optical devices, e.g. lens elements; for the production of optical devices
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
  • B41M1/00—Inking and printing with a printer's forme
  • B41M1/14—Multicolour printing
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
  • B41M1/00—Inking and printing with a printer's forme
  • B41M1/14—Multicolour printing
  • B41M1/20—Multicolour printing by applying differently-coloured inks simultaneously to different parts of the printing surface
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
  • B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
  • B41M7/0081—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using electromagnetic radiation or waves, e.g. ultraviolet radiation, electron beams
• • G—PHYSICS
  • G02—OPTICS
  • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
  • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
  • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
  • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
  • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
  • G02F1/1333—Constructional arrangements; Manufacturing methods
  • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
  • G02F1/133509—Filters, e.g. light shielding masks
  • G02F1/133514—Colour filters
  • G02F1/133516—Methods for their manufacture, e.g. printing, electro-deposition or photolithography

Definitions

• the color cells are typically printed in films less than about 10 microns thick, and preferably less than 5 microns thick, and must be evenly applied and accurately registered within the pattern formed by the black matrix.
• the front glass substrate is typically completed by depositing a planarizing layer, a transparent conducting layer, and a polyimide alignment layer over the color filter element.
• the transparent conducting layer is typically indium tin oxide (ITO), although other materials can also be utilized.
• transfer layer 14 is preferably liquid prior to contacting the black matrix pattern, and cured during the transfer of the black matrix pattern to transfer layer 14.
• Such curing may be accomplished by utilizing ultraviolet radiation curable material to form transfer layer 14, and applying radiation, via ultraviolet (UV) light 34a, to transfer layer 14 during deposition of the black matrix pattern 10 to transfer layer 14.
• UV light 34a is mounted within roll 16, which is made of UV radiation transparent material to allow the radiation to be emitted therefrom. It should be noted that the radiation employed does not have to be ultraviolet, but could instead be visible, infrared, or other radiation, depending on the photoinitiator employed for the transfer layer.
• intaglio roll 18 is constructed of radiation transparent material, and a UV light 34c is mounted therein to cure or partially cure the black matrix ink while it is retained within recessed pattern 20.
• a UV light 34c is mounted therein to cure or partially cure the black matrix ink while it is retained within recessed pattern 20.
• Such curing or setting of the black matrix ink could alternatively take place simultaneous with contact of the black matrix ink with the transfer layer.
• the black matrix ink could be cured by radiation from UV light 34a.
• the black matrix is sufficiently hardened so. that the ink at least substantially retains, and preferably completely retains, the exact shape of recessed pattern 20.
• transfer layer applicator roll 42 is depositing a transfer layer 14 to receiving surface 58b of collector roll 16 and black matrix applicator roll 18 is depositing a cured raised black matrix pattern 10 on transfer layer 14.
• red ink pattern region 52c will deposit the red color dot pattern onto receiving surface 58b of collector roll 16
• green ink pattern region 52b will deposit the green color dot pattern onto receiving surface 58a.
• blue ink pattern region 52A will deposit the blue color dot pattern onto receiving surface 58b
• red ink pattern region 52c will deposit a red ink pattern onto receiving surface 58a.
• Thermoplastic inks do have at least one advantage, in that they can be formulated to set up immediately upon deposition to a substrate or transfer roll having a lower temperature, resulting in less pinholes, film non- uniformities and other such defects which can be caused by inadequate wetting of transfer surfaces. Consequently, another preferred type of ink is one that displays both thermoplastic and radiation curable properties.
• Such an ink is one which is formulated to be thermoplastic until printed to the substrate, at which point it can be cured by exposure to appropriate radiation. By cured, it is meant that the ink is to some extent cross-linked. Cross-linking of the ink increases its durability and resistance to higher temperatures, which is preferable due to the temperatures the color filter will be exposed to in subsequent processing steps.

Landscapes

• Physics & Mathematics (AREA)
• Engineering & Computer Science (AREA)
• General Physics & Mathematics (AREA)
• Optics & Photonics (AREA)
• Ceramic Engineering (AREA)
• Manufacturing & Machinery (AREA)
• Optical Filters (AREA)
• Printing Methods (AREA)
• Liquid Crystal (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (2)

Family

ID=23263196

Family Applications (1)

Country Status (9)

Cited By (1)

Families Citing this family (43)

Family Cites Families (7)

• 1994
  • 1994-10-17 US US08/324,345 patent/US5514503A/en not_active Expired - Fee Related
• 1995
  • 1995-10-04 BR BR9508182A patent/BR9508182A/pt not_active Application Discontinuation
  • 1995-10-04 WO PCT/US1995/017146 patent/WO1996036491A2/en not_active Ceased
  • 1995-10-04 CA CA002183983A patent/CA2183983A1/en not_active Abandoned
  • 1995-10-04 EP EP95944852A patent/EP0768955A1/en not_active Withdrawn
  • 1995-10-04 MX MX9602375A patent/MX9602375A/es unknown
  • 1995-10-17 JP JP52285996A patent/JP3931925B2/ja not_active Expired - Fee Related
  • 1995-11-30 TW TW084112865A patent/TW294841B/zh active
• 1996
  • 1996-06-17 KR KR10-1997-0704225A patent/KR100382052B1/ko not_active Expired - Fee Related

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