Display apparatus with light detection and fabrication method for display apparatus with light detection
View Patent ↗A display apparatus is provided which can detect light of a predetermined wavelength with a high degree of accuracy from within light incident from a screen by a simple configuration. The display apparatus includes a CF substrate ( 9 ) having a plurality of color filters ( 31 ) of different colors for passing light for displaying an image on the screen ( 55 a ) and an IR filter ( 33 ) provided in a region different from an arrangement region of the color filters of the different colors for passing light incident from the screen ( 55 a ), and a main sensor ( 19 ) provided on the rear side of the IR filter ( 33 ) for detecting light incident from the screen ( 55 a ) and passing through the IR filter ( 33 ). The IR filter ( 33 ) has a laminate of filter materials same as filter materials from which at least two or more ones of the color filters of the different colors are formed respectively.
1. A display apparatus, comprising:
color filters of different colors operable to pass light for displaying an image on a screen;
a detection filter operable to pass light incident from the screen; and
an optical sensor operable to detect light incident from the screen through said detection filter,
wherein,
at least two or more of said color filters have spectral characteristics with transmission factors that are higher in particular wavelength regions, the wavelength regions being different among the color filters within a first wavelength region, and the transmission factors being higher in a second wavelength region relative to the first wavelength region;
said detection filter formed from a laminate of filter materials, the two or more color filters formed from the same filter materials as the detection filter.
2. The display apparatus according to claim 1 , wherein said detection filter is provided in a region different from arrangement regions of said color filters on a color filter substrate.
3. The display apparatus according to claim 2 , further comprising:
a noise removing sensor capable of detecting light provided behind a light blocking portion on said filter substrate; and
a mathematical operation section operable to subtract a correction value based on a detection value of said noise removing sensor from a detection value of said optical sensor.
4. The display apparatus according to claim 1 , wherein
the first wavelength region is a wavelength region of visible rays, and
the second wavelength region is a wavelength region of invisible rays.
5. The display apparatus according to claim 1 , wherein said detection filter has sides contiguous, as viewed in plan, to sides of the two or more color filters.
6. The display apparatus according to claim 1 , wherein,
a plurality of layers of the filter material of a first one of the colors are (i) formed in a first direction as viewed in plan and (ii) arrayed in a second direction perpendicular to the first direction,
a plurality of layers of the filter material of a second one of colors are formed in the second direction as viewed in plan are arrayed in the first direction,
said color filters are formed from portions of the filter material which do not overlap with each other, and
said detection filter is formed from portions of the filter material which overlap with each other.