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Sharp showcases a 1" smartwatch battery-saving display that has 8 colors and no backlight

Posted: , by Pressian Karakostov

Sharp showcases a 1
Sharp seems to be on a bender to revolutionize smart device screens. First, it released the “bezelless phone” – Aquos Crystal, then, we heard rumors about the company working on a 4K (4096 x 2160) smartphone screen panel, as well as re-working how the protective glass is manufactured, in an attempt to make it clearer. Now, Sharp showed a 1" smartwatch display prototype, which will probably be a big deal once it gets to its final stage.

The panel replaces the well-known backlight with a reflective layer – this means that any light that hits the watch will be then used to illuminate the display from the inside and show the image. Aside from saving a lot of battery power, this will also help make the watch view-able in direct sunlight, as more incoming light would mean more backside illumination. The major drawback is, and we assume Sharp would be looking for a way around this, the fact that the display can not be viewed in the dark.

The other power-saving feature, employed by Sharp's prototype, is the implementation of semiconductor memory – a random access memory with fast access times, which, in this case, is used for storing and reproducing the on-screen image, reducing power consumption in the process. For the picture, Sharp uses a LTPS (low temperature polysilicon) LCD display with only 8 colors.

It is said that Sharp has been in talks with various manufacturers over implementing the tech in a smartwatch, though, there is yet no word on whether any of them agreed to a partnership.

source: PadNews (translated) via GSMDome

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posted on 04 Nov 2014, 07:39 6

1. FAKEPERSONA (unregistered)


i remember Casio digital watches which had a button to illuminate a light for viewing time at night

posted on 04 Nov 2014, 08:01

3. jaytai0106 (Posts: 1888; Member since: 30 Mar 2011)


I used to have one like that. I still remember using a flashlight to play gameboy in the dark when I was a kid... good time good time.

posted on 04 Nov 2014, 08:06 2

4. DeusExCellula (Posts: 1104; Member since: 05 Oct 2014)


I remember buying the little flashlight extension to go with my gameboy color. I miss that lil guy

posted on 04 Nov 2014, 07:59 2

2. jaytai0106 (Posts: 1888; Member since: 30 Mar 2011)


To view in the dark, please download our flashlight app on your phone to illuminate your smartwatch screen.

Joking aside, this will be awesome! Put a solar panel in there too!! Then you'll have a smartwatch that its battery life might last more than a week.

posted on 04 Nov 2014, 08:58 1

5. Genza (Posts: 539; Member since: 12 Mar 2014)


To make them visible in the dark simply add the LED to light up the screen or can be combined with a transmissive backlight = (Transflective LCD) just like Sony did on SmartWatch 2 and 3.

And i think the JDI Reflective LCD is little bit better, because not only JDI reflective LCD has more color but is also ready to be mass produced.
http://www.j-display.com/english/news/2014/20140109.html

posted on 04 Nov 2014, 08:58

6. Genza (Posts: 539; Member since: 12 Mar 2014)


To make them visible in the dark simply add the LED to light up the screen or can be combined with a transmissive backlight = (Transflective LCD) just like Sony did on SmartWatch 2 and 3.

And i think the JDI Reflective LCD is little bit better, because not only JDI reflective LCD has more color but is also ready to be mass produced.
http://www.j-display.com/english/news/2014/20140109.html

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