Invention Grant
US08189152B2 Production method of liquid crystal display device and liquid crystal display device 有权
液晶显示装置及液晶显示装置的制作方法

  • Patent Title: Production method of liquid crystal display device and liquid crystal display device
  • Patent Title (中): 液晶显示装置及液晶显示装置的制作方法
  • Application No.: US12596737
    Application Date: 2007-12-18
  • Publication No.: US08189152B2
    Publication Date: 2012-05-29
  • Inventor: Hidetoshi Nakagawa
  • Applicant: Hidetoshi Nakagawa
  • Applicant Address: JP Osaka
  • Assignee: Sharp Kabushiki Kaisha
  • Current Assignee: Sharp Kabushiki Kaisha
  • Current Assignee Address: JP Osaka
  • Agency: Nixon & Vanderhye, P.C.
  • Priority: JP2007-111823 20070420
  • International Application: PCT/JP2007/074316 WO 20071218
  • International Announcement: WO2008/136155 WO 20081113
  • Main IPC: G02F1/1337
  • IPC: G02F1/1337
Production method of liquid crystal display device and liquid crystal display device
Abstract:
The present invention provides a liquid crystal display device and a production method of a liquid crystal display device, capable of improving display qualities in a display region close to a frame region without causing any defects. The present invention is a production method of a liquid crystal display device, the liquid crystal display device including: a pair of substrates facing each other; a liquid crystal layer arranged between the pair of substrates; an alignment film arranged on a liquid crystal layer-side surface of at least one of the pair of substrates; and a pixel including two or more domains, the production method including an exposure step of exposing the alignment film using a photomask having a first mask part and a second mask part, the first mask part having a plurality of transmissive parts formed within a light-shielding region, the second mask part having a plurality of transmissive parts formed within the light-shielding region in a form different from a form of the plurality of transmissive parts in the first mask part, wherein the alignment film in a display region is exposed through the first mask part, and the alignment film in a frame region is exposed through the second mask part.
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