Transmissive display apparatus and light control shade for transmissive display apparatus

a display apparatus and display device technology, applied in lighting and heating devices, instruments, lighting device details, etc., can solve the problems of too frequent change of transmission, annoyance of viewers against the intention, dangerous situation, etc., and achieve the effect of increasing the outside light transmittance and quickly adjusting the transmittance thereo
US20170090198A1Inactive Publication Date: 2017-03-30SEIKO EPSON CORP
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Patent Information

Authority / Receiving Office
US ยท United States
Patent Type
Applications(United States)
Current Assignee / Owner
SEIKO EPSON CORP
Publication Date
2017-03-30
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

A transmissive display apparatus allows see-through observation in which video light and outside light are superimposed on each other for visual recognition of the superimposed light and further allows a light control shade to control the outside light by changing the outside light transmittance of the light control shade in accordance with a change in quantity of the outside light. In this case, in particular, when a decrease in the outside light quantity is detected with an outside light sensor, which is the outside light detection section, a light quantity control section of a primary control section performs quick response control in which the transmittance of the light control shade is quickly adjusted (outside light quantity is controlled).
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Description

BACKGROUND

[0001] 1. Technical Field

[0002] The present invention relates to a transmissive display apparatus that presents a viewer with video images formed by an image display apparatus and a light control shade for the transmissive display apparatus.

[0003] 2. Related Art

[0004] A variety of optical systems have been proposed as those incorporated into a display apparatus (virtual image display apparatus), such as a head mounted display (hereinafter also referred to as HMD) mounted on a viewer's head. In particular, there is a known display apparatus called a see-through-type display apparatus (transmissive display apparatus) that superimposes video light and outside light on each other and allows visual recognition of the superimposed light (see JP-A-2014-160169).

[0005] As a transmissive display apparatus of the see-through type, there is a known display apparatus that is provided with a light control apparatus for controlling outside light, and the display apparatus controls the light t...

Claims

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