Back to results
US 5,473,453 AGranted
Liquid crystal display with opaque film formed by exposure through microlens
AssigneeCanon Kabushiki Kaisha
InventorKatsumi Kurematsu
Life of this patent
Estimating the term…
Abstract
A photomask (5) of a liquid crystal display panel is formed by photolithographic exposure of a photosensitive resin layer through micro-lenses (3), and the apertures thereof are in complete alignment with condensed light through the micro-lenses, so that unnecessary light, such as strayed light, can be effectively masked. The liquid crystal display panel thus formed is provided with an increased effective aperture rate and suitable for a clearer image display.
Claims1
A liquid crystal display panel, comprising:
- a first glass plate having a first surface provided with an array of micro-lenses and a second flat surface provided thereon with a patterned layer of photomasks, which has been formed by forming a photosensitive resin layer on the second flat surface and exposing the photosensitive layer to light incident from the first surface side, thereby removing the portions of the photosensitive layer having received light focused through the micro-lenses to form light-transmitting portions while leaving the remaining portions as the photomasks,
- a second glass plate oppositely disposed with a prescribed spacing from the first glass plate and provided with thin film transistors oriented opposite to and in alignment with the photomasks on the first glass plate;
- and
- a liquid crystal disposed between the first and second substrates.
1 more element
Dependencies are inferred from the claim text.