Display medium and method of manufacturing the same
AssigneeBrother Kogyo Kabushiki Kaisha
InventorYoshito Toyoda
Life of this patent
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Abstract
A display medium includes a first substrate, a second substrate and a spacer. The first substrate has a display surface on which an image having a plurality of pixels is displayed. The second substrate opposes to the first substrate to form a liquid chamber between the first substrate and the second substrate. The spacer is disposed between the first substrate and the second substrate to seal the liquid chamber. Gas and display liquid including a plurality of charged particles are confined in the liquid chamber so that the gas partitions the display liquid by each pixel.
Claims20
A display medium comprising:
- a first substrate having a display surface on which an image having a plurality of pixels is displayed;
- a second substrate opposing to the first substrate to form a liquid chamber between the first substrate and the second substrate;
- and
- a spacer disposed between the first substrate and the second substrate to seal the liquid chamber, gas and display liquid including a plurality of charged particles being confined in the liquid chamber so that the gas partitions the display liquid by each pixel.
A method of manufacturing a display medium including a first substrate and a second substrate opposing to the first substrate to form a liquid chamber between the first substrate and the second substrate, gas and display liquid including a plurality of charged particles being confined in the liquid chamber so that the gas partitions the display liquid, the method comprising:
- forming, on the first substrate, a plurality of liquid affinitive areas having better wettability to the display liquid than gas contact areas for contacting the gas or a plurality of convex portions protruding inward the liquid chamber in comparison to the gas contact areas;
- after executing the forming step, interposing an elastic spacer on which an ejection port is formed between the first substrate and the second substrate;
- after executing the interposing step, providing at least one of the first substrate and the second substrate with a pressing pressure so that the first substrate and the second substrate approximate to each other;
- after executing the providing step, injecting the display liquid from the injection port into the liquid chamber;
- after executing the injecting step, removing a predetermined amount of pressing pressure from the pressing pressure;
- after executing the removing step, sealing the injection port;
- and
- after executing the sealing step, fixing a distance between the first substrate and the second substrate.
A method of manufacturing a display medium including a first substrate and a second substrate opposing to the first substrate to form a liquid chamber between the first substrate and the second substrate, gas and display liquid including a plurality of charged particles being confined in the liquid chamber so that the gas partitions the display liquid, the method comprising:
- forming, on the first substrate, a plurality of liquid affinitive areas having better wettability to the display liquid than gas contact areas for contacting the gas or a plurality of convex portions protruding inward the liquid chamber in comparison to the gas contact areas;
- after executing the forming step, providing the display liquid on the display liquid affinitive areas or the convex portions by means of an ink jet printer;
- after executing the providing step, opposing the first substrate and the second substrate to each other so that the display liquid contacts both of the first substrate and the second substrate;
- and
- after executing the opposing step, interposing a spacer between the first substrate and the second substrate to maintain a distance the first substrate and the second substrate.
Dependencies are inferred from the claim text.