公开(公告)号：US20250028207A1

公开(公告)日：2025-01-23

申请号：US18763810

申请日：2024-07-03

Applicant: Sharp Display Technology Corporation

Inventor： Tsuyoshi OKAZAKI ,  Shinichi TERASHITA ,  Yuko TERAOKA ,  Kouichi WATANABE ,  Takehisa YOSHIDA ,  Yoshito HASHIMOTO

IPC: G02F1/1343 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/137

Abstract: A liquid crystal display device includes a first substrate, a second substrate, and a liquid crystal layer. The first substrate includes a reflective layer, a first electrode and a second electrode configured to generate a transverse electrical field in the liquid crystal layer, and a first horizontal alignment film. An electrode, of the first electrode and the second electrode, disposed on a side of the liquid crystal layer includes a plurality of belt-shaped portions and a slit positioned between two adjacent belt-shaped portions of the plurality of belt-shaped portions, the liquid crystal layer is constituted by a liquid crystal material including a liquid crystal molecule, the liquid crystal material is a positive type. The second substrate includes a second horizontal alignment film being in contact with the liquid crystal layer, and the liquid crystal layer takes a twist alignment when no voltage is applied.

公开(公告)号：US20230194935A1

公开(公告)日：2023-06-22

申请号：US18078042

申请日：2022-12-08

Applicant: Sharp Display Technology Corporation

Inventor： Tetsuo FUKAYA ,  Mitsuru CHIDA ,  Yoshito HASHIMOTO

IPC: G02F1/1343

CPC classification number: G02F1/134372

Abstract: Provided is a liquid crystal display device including a first and second sub-pixels and including a first and second substrates. The first substrate includes a common electrode, an interlayer insulating film, and a first and second sub-pixel electrodes. The first and second sub-pixel electrodes each include linear electrode portions at an edge area and a linear electrode portion at a central area. The interlayer insulating film includes a region overlapping the linear electrode portions at the edge area and a region overlapping the linear electrode portion at the central area for each sub-pixel and the regions are different in at least one of a film thickness or a relative permittivity. An electric field strength between the common electrode and the linear electrode portions at the edge area is lower than an electric field strength between the common electrode and the linear electrode portion at the central area.