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LCCS: The LCD / CRT Hybrid from JVC

Technology Connections1 HN recommender · recommended in 1 month, 2020–2025
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explainer · intermediate · evergreen · 2020–2025 on HN

A Technology Connections video on JVC's LCCS, a display hybrid that cycles a color LCD shutter over a monochrome CRT to produce field-sequential color without dots or stripes. It builds on his earlier videos about analog TV and compatible color.

HN links it as a neat breakdown of an unusual CRT/LCD color technology.

Audio & video engineeringHistory of computing#jvclccs#crt#lcdshutter#colorwheel

4 comments from Hacker News

@tootie2020-06 · in “Show HN: Rainbow – an attempt to display colour on a B&W monitor”

JVC built a working model with that approach. There's a neat breakdown of the tech on this YT channel: ▶ this video

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@grishka2025-05 · in “A Tektronix TDS 684B Oscilloscope Uses CCD Analog Memory”

Modern video projectors also display color channels sequentially and also exhibit that effect. Also, this particular CRT technology was not only used in oscilloscopes: ▶ this video

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@grumbel2022-08 · in “Advantages of CRT over LCD”

The Sony Watchman[1] had the electron gun at the bottom shooting at a tilted screen instead of shooting at it from the back. This allowed to make a GameBoy-sized portable CRT TV. There is also an interesting LCD/CRT hybrid from JVC[2], it's not flat by itself, but the way it adds color to an otherwise black&white screen could be used in slim designs. [1] link [2] ▶ this video

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@xattt2022-03 · in “Why is the red primary color oriented at 104° on a vectorscope?”

Tangential but Alec Watson of Technology Connections looked at a studio monitor that worked on the principle of cycling an LCD overlay over a monochrome CRT. When I was growing up in Toronto, I want to say that I remember seeing these in use by “LiveEye” crews of CityTV whenever I went by an on-location shoot. (1) ▶ this video

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