IMAGE DISPLAY DEVICE

To provide an image display device which is small and can realize high light usage efficiency.SOLUTION: An image display device includes: an image display element; light control means having an angle separation surface which reflects a light flux from a light source to the image display element and...

Full description

Saved in:
Bibliographic Details
Main Author MAEDA YUUKI
Format Patent
LanguageEnglish
Japanese
Published 27.03.2024
Subjects
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
Online AccessGet full text

Cover

More Information
Summary:To provide an image display device which is small and can realize high light usage efficiency.SOLUTION: An image display device includes: an image display element; light control means having an angle separation surface which reflects a light flux from a light source to the image display element and transmits a light flux from the image display element; and a light guide plate for guiding a light flux from the light control means. An angle at which a main light beam of a light flux from the light source enters the angle separation surface and an angle at which a main light beam of a light flux from the image display element enters the angle separation surface are adequately set.SELECTED DRAWING: Figure 1 【課題】小型で、高い光利用効率を実現することが可能な画像表示装置を提供すること。【解決手段】画像表示装置は、画像表示素子と、光源からの光束を画像表示素子に反射し、画像表示素子からの光束を透過させる角度分離面を備える光制御手段と、光制御手段からの光束を導光する導光板とを有し、光源からの光束の主光線が角度分離面に入射する角度、画像表示素子からの光束の主光線が角度分離面に入射する角度を各々適切に設定すること。【選択図】図１
Bibliography:Application Number: JP20220146107