LIQUID CRYSTAL DISPLAY DEVICE

• Main Author: TAKEDA ARIHIRO
• Format: Patent
• Language: English; Japanese
• Published: 22.06.2015
• Subjects: DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

PROBLEM TO BE SOLVED: To provide a liquid crystal display device the display quality of which can be improved.SOLUTION: The liquid crystal display device comprises a first substrate, a second substrate and a liquid crystal layer. The first substrate comprises: a first insulating substrate; a switching element placed on the first insulating substrate; a first interlayer insulation film covering the switching element; a first reflective common electrode extending on the first interlayer insulation film; a second interlayer insulation film covering the first common electrode; a transmissive pixel electrode facing the first common electrode at least partially on the second interlayer insulation film and electrically connected to the switching element; and a first vertical alignment layer covering the pixel electrode. The second substrate comprises: a second insulating substrate; a second common electrode extending at the side facing the first substrate, of the second insulating substrate and having the same potential as that of the first common electrode; and a second vertical alignment layer covering the second common electrode. The liquid crystal layer is held between the first vertical alignment layer and the second vertical alignment layer. 【課題】表示品位を改善することが可能な液晶表示装置を提供する。【解決手段】第１絶縁基板と、前記第１絶縁基板上に位置するスイッチング素子と、前記スイッチング素子を覆う第１層間絶縁膜と、前記第１層間絶縁膜上に延在した反射性の第１共通電極と、前記第１共通電極を覆う第２層間絶縁膜と、前記第２層間絶縁膜上でその少なくとも一部が前記第１共通電極と対向し前記スイッチング素子と電気的に接続された透過性の画素電極と、前記画素電極を覆う第１垂直配向膜と、を備えた第１基板と、第２絶縁基板と、前記第２絶縁基板の前記第１基板と対向する側に延在し前記第１共通電極と同電位の第２共通電極と、前記第２共通電極を覆う第２垂直配向膜と、を備えた第２基板と、前記第１垂直配向膜と前記第２垂直配向膜との間に保持された液晶層と、を備えた液晶表示装置。【選択図】 図２