← Back to Patent Explorer
JPH0498221A Expired / Lapsed JP ⏱️ 0.0 years remaining

Liquid crystal element

Assignee: NEC Corp
•
Filing: 1990-08-17
•
Granted: —
•
Expires: 2010-08-17
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract PURPOSE:To obtain a liquid crystal(LC) element removing the visual angle dependency of LC cells having hybrid structure by constituting each LC cell of a substrate having a pre-tilt angle in one direction on its face and processed by parallel orientation processing, a vertically oriented substrate and an LC layer held between both the substrates and arranging respective LC cells by rotating them around a substrate normal direction by 180 deg.C. CONSTITUTION:The 1st hybrid LC cell 501 and the 2nd hybrid LC cell 502 are arranged on positions mutually rotated by 180 deg.C. The change of transmitted light quantity against a change in the incident angle of light to each LC cell out of the two layers is measured. Consequently, the incident angle dependency of transmitted light is reduced and visual angle characteristics can be improved. On the other hand, hybrid LC cell 601 and a parallel orientation LC cell 602 are arranged so that respective parallel orientation directions intersect with each other at right angles. When the change of transmitted light quantity against a change in the incident angle of light to each cell out of both the layers is measured, the incident angle dependency of transmitted light is reduced and the visual angle dependency can be improved.

Inventors

  • 👤 Ken Sumiyoshi
  • 👤 研 住吉

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-11-09 00:03
CPC Classifications
—

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

JPS58121018A Cited
JPH01209424A Cited
JPH03188419A Cited

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag