Display - Revision history

Jnc: Tweak wording

2024-02-15T14:36:52Z

Tweak wording

Jnc: +cat

2018-12-13T15:16:51Z

+cat

Jnc: Some displays could not do images

2018-09-24T00:18:24Z

Some displays could not do images

Jnc: copyedits

2018-09-16T14:19:28Z

copyedits

Jnc: A start

2018-09-15T21:37:26Z

A start

New page

A '''display''' is a piece of [[hardware]] which can display an image to the [[user]]; the may be monochrome, although now they are almost all colour.

The first displays used [[cathode ray tube|CRTs]], but since they were [[vacuum tube]]s, they took up considerable volume. Still, they were the mainstay of visual displays up through the early days of [[bit-mapped display]]s.

When it became possible to fabricate [[liquid crystal display]]s with many [[pixel]]s in large [[array]]s, they were the only viable display technology for use in lap-top [[personal computer]]s, and that drove their development. LCD displays rapidly became the display of choice once they became economically competive.

LCDs needed a backlight, which was generally provided by a fluorescent light driven by a high-[[voltage]] [[power supply]], both of which had a tendency to fail.

Thus, when the invention of the blue [[Light Emitting Diode|LED]] permitted the creation of displays consisting of arrays of LEDs, those rapidly because the display technology of choice.

@@ Line 1: / Line 1: @@
-A '''display''' is a piece of [[hardware]] which can display content to the [[user]]; the content can now usually be an image, but there are displays which only showed text. They may be monochrome, although now they are almost all colour.
+A '''display''' is a piece of [[hardware]] which can display content to the [[user]]; the content is now usually an image, but there were displays which only showed text. They were usually monochrome originally, but now they are inevitably colour.
 The first displays used [[cathode ray tube|CRTs]], but since they were [[vacuum tube]]s, they took up considerable volume. Still, they were the mainstay of visual displays up through the early days of [[bit-mapped display]]s.
-When it became possible to fabricate [[liquid crystal display]]s with many [[pixel]]s in large [[array]]s, for physical reasons they were the only viable display technology for use in lap-top [[personal computer]]s, and that drove their development. LCD displays rapidly became the display of choice for all display applications, once they became economically competive.
+When it became possible to fabricate [[liquid crystal display]]s with many small [[pixel]]s in large [[array]]s, for physical reasons they were the only viable display technology for use in lap-top [[personal computer]]s, and that drove their development. LCD displays rapidly became the display of choice for all display applications, once they became economically competitive.
 LCDs need a backlight, which was generally provided by a fluorescent light driven by a high-[[voltage]] [[power supply]], both of which had a moderate tendency to fail.
-Thus, when the invention of the blue [[Light Emitting Diode|LED]] permitted the creation of colour displays consisting of arrays of LEDs, those rapidly because the display technology of choice.
+Thus, when the invention of the blue [[Light Emitting Diode|LED]] permitted the creation of colour displays consisting of arrays of tiny LEDs, those rapidly because the display technology of choice.
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 [[Category: Device Basics‎‎]]

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@@ Line 1: / Line 1: @@
-A '''display''' is a piece of [[hardware]] which can display an image to the [[user]]; the may be monochrome, although now they are almost all colour.
+A '''display''' is a piece of [[hardware]] which can display content to the [[user]]; the content can now usually be an image, but there are displays which only showed text. They may be monochrome, although now they are almost all colour.
 The first displays used [[cathode ray tube|CRTs]], but since they were [[vacuum tube]]s, they took up considerable volume. Still, they were the mainstay of visual displays up through the early days of [[bit-mapped display]]s.
@@ Line 8: / Line 8: @@
 Thus, when the invention of the blue [[Light Emitting Diode|LED]] permitted the creation of colour displays consisting of arrays of LEDs, those rapidly because the display technology of choice.