会议室选择面板屏幕如何选择？

会议室屏幕有个简单公式

屏幕尺寸 * factore = 人眼视觉接受最远距离

%EH = 元素高度 / 屏幕尺寸

Factor

Video 8

6 for applications where PowerPoint (large font) presentation

In boardrooms and conference rooms using video conferencing (Skype, Videxio, WebEx, etc.) a multiplier of 4 is recommended

4 for presentations that consist primarily of data rich contents such as CAD drawings, documents from Word or Excel, and Web pages or screen shares

· 2% EH—usually sufficient for conference rooms where detailed content is disseminated over an extended period of time.

· 3% EH—this is the most common setting, usually employed where the viewers have additional clues for the information.

· 4% EH—used when there are no clues for the viewer and they don’t see the content for very long.

• https://pid.samsungdisplay.com/en/learning-center/blog/how-to-choose-signage-size
• https://www.logicav.net/more/our-blog/item/how-to-determine-the-right-display-for-your-conference-room-part-one
• https://www.linkedin.com/pulse/what-screen-size-suit-your-conference-venue-boardroom-robbertze/
• https://www.avixa.org/about-avixa/who-we-are/press-room/2016/06/10/infocomm-international-releases-new-standard-for-display-image-size

补充几个资料

• Image Size and Resolution Explained

• dpi 、 dip 、分辨率、屏幕尺寸、px、density 关系以及换算

• 屏幕尺寸，分辨率，像素，PPI之间到底什么关系

二维码

• The Best Guide to Choosing the Right Digital Signage Size 对基础概念有解释

元素类型	尺寸	距离	效果	识别工具
二维码，7%冗余度	200px X 200px	1m	秒级识别	企微
文字	字体高度 >0.4cm	80cm	字体高度/观测距离的 ~= 千分之五	人眼

• BDM 场景下 AVIXA, Inc. 针对ANSI 标准做的计算工具,