Display device
AssigneeSharp Kabushiki Kaisha
InventorsTadashi Nemoto, Hiromi Katoh, Christopher Brown
Life of this patent
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Abstract
Disclosed is a display device provided with a photosensor, which can improve sensor sensitivity without affecting display. The display device includes: a photosensor (FS) provided in a display region (1); a visible light blocking filter (18) that blocks visible light, which is disposed on an optical path of light that enters through an image display surface and that reaches the photosensor (FS); and a wavelength conversion layer (24) that is disposed between the visible light blocking filter (18) and the photosensor (FS) and that converts light in a specific wavelength range, which includes a range outside of the visible light range, into visible light.
Claims9
A display device that has a display region that displays an image, comprising:
- a photosensor in the display region;
- a visible light blocking filter that blocks visible light, the visible light blocking filter being disposed on an optical path of light that enters through a display surface of the image and that reaches the photosensor;
- and
- a wavelength conversion layer that converts light in a specific wavelength range, which includes a range outside of a visible light range, into visible light, the wavelength conversion layer being provided between the visible light blocking filter and the photosensor.
A method of manufacturing a display device, comprising:
- forming a pixel circuit and a photosensor on a substrate;
- forming a visible light blocking filter that blocks visible light at a position that corresponds to the photosensor;
- and
- forming a wavelength conversion layer between the photosensor and the visible light blocking filter, the wavelength conversion layer converting light in a specific wavelength range, which includes a range outside of a visible light range, into visible light.
Dependencies are inferred from the claim text.