REFLECTION TYPE LIQUID CRYSTAL DISPLAY DEVICE

• Main Author: SEKI KATSUYA
• Format: Patent
• Language: English; Japanese
• Published: 01.08.2019
• 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

To provide a reflection type liquid crystal display device that has a high degree of freedom of design, which allows miniaturization and can ensure the brightness of an image.SOLUTION: A first transparent member 12 is arranged between a reflection type liquid crystal display panel 2 and a polarization beam splitter 15, and a first refraction film 10 is formed on a second surface 12b of the first transparent member 12 that faces the polarization beam splitter 15. A main beam of linearly polarized light (P-wave) incident on the inside of the first transparent member 12 from a first surface 12a of the first transparent member 12 is not totally reflected on a boundary surface between the first refraction film 10 and a lower air layer 14a and is refracted toward a light transmission/reflection surface of the polarization beam splitter 15.SELECTED DRAWING: Figure 1 【課題】画像の輝度を確保しつつ小型化することが可能な設計の自由度が高い反射型液晶表示装置を提供する。【解決手段】反射型液晶表示パネル２と偏光ビームスプリッター１５との間に第一の透明部材１２を配置し、偏光ビームスプリッター１５と対向する第一の透明部材１２の第二の面１２ｂに第一の屈折膜１０を形成する。第一の透明部材１２の第一の面１２ａから第一の透明部材１２の内部へ入射した直線偏光（Ｐ波）の主光束は、第一の屈折膜１０と下部空気層１４ａとの境界面で全反射されずに、偏光ビームスプリッター１５の光透過反射面に向かって屈折する。【選択図】図１