Liquid crystal display device with decorative pattern directly thereon
AssigneeThe Swatch Group Research and Development Ltd
InventorsMichel Sagardoyburu, Loïc Curchod
Life of this patent
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Abstract
A liquid crystal display device, the display device including: two facing transparent substrates designated respectively front substrate and rear substrate, the front substrate being same disposed on the observer side, the front and rear substrates being provided on the inner faces thereof with transparent structured electrodes whereof the superposition defines shape pixels switchable between two optical states, the electrodes being connected to a voltage source via a control circuit, forming a cell closed by a sealing frame for receiving in the spaced delimited by the substrates and the sealing frame a liquid crystal composition; and a decorative pattern in direct contact with the front substrate or the rear substrate.
Claims19
A liquid crystal display device, the display device comprising:
- two facing transparent substrates designated respectively front substrate and rear substrate, the front substrate being same disposed on the observer side, the front and rear substrates being directly provided on the inner faces thereof with transparent structured electrodes whereof the superposition defines shape pixels switchable between two optical states, the electrodes being connected to a voltage source via a control circuit, and the two facing transparent substrates forming a cell closed by a sealing frame for receiving a liquid crystal composition in the space delimited by the substrates and the sealing frame;
- a decorative pattern in direct contact with the front substrate and/or the rear substrate;
- and
- the liquid crystal composition, the liquid crystal composition being between the two facing transparent substrates,
- wherein the shape pixels comprise crescent-shaped pixels and the shape pixels, in combination, have a shape of a celestial body, and
- wherein the decorative pattern is aligned with the transparent structured electrodes such that the decorative pattern has the shape of the celestial body and a size of the shape pixels.
A dial assembly for a timepiece comprising a dial and a display device comprising:
- two facing transparent substrates designated respectively front substrate and rear substrate, the front substrate being same disposed on the observer side, the front and rear substrates being directly provided on the inner faces thereof with transparent structured electrodes whereof the superposition defines shape pixels switchable between two optical states, the electrodes being connected to a voltage source via a control circuit, and the two facing transparent substrates forming a cell closed by a sealing frame for receiving a liquid crystal composition in a space delimited by the substrates and the sealing frame;
- a decorative pattern in direct contact with the front substrate and/or the rear substrate;
- and
- the liquid crystal composition, the liquid crystal composition being between the two facing transparent substrates,
- wherein the shape pixels comprise crescent-shaped pixels and the shape pixels, in combination, have a shape of a celestial body, and
- wherein the decorative pattern is aligned with the transparent structured electrodes such that the decorative pattern has the shape of the celestial body and a size of the shape pixels.
A timepiece and/or piece of jewellery comprising a display device comprising:
- two facing transparent substrates designated respectively front substrate and rear substrate, the front substrate being same disposed on the observer side, the front and rear substrates being directly provided on the inner faces thereof with transparent structured electrodes whereof the superposition defines shape pixels switchable between two optical states, the electrodes being connected to a voltage source via a control circuit, and the two facing transparent substrates forming a cell closed by a sealing frame for receiving a liquid crystal composition in a space delimited by the substrates and the sealing frame;
- a decorative pattern in direct contact with the front substrate and/or the rear substrate;
- and
- the liquid crystal composition, the liquid crystal composition being between the two facing transparent substrates,
- wherein the shape pixels comprise crescent-shaped pixels and the shape pixels, in combination, have a shape of a celestial body, and
- wherein the decorative pattern is aligned with the transparent structured electrodes such that the decorative pattern has the shape of the celestial body and a size of the shape pixels.
Dependencies are inferred from the claim text.