Display apparatus and method of controlling the same
AssigneeNichia Corporation
InventorMotokazu YAMADA
Life of this patent
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Abstract
A display apparatus includes a first light source, a second light source, a third light source, a first color filter, a second color filter, a third color filter, and an opto-functional device. The first light source and the second light source are allowed to emit light in a first emission time period to form a first display pattern. The third light source is allowed to emit light and the opto-functional device controls the third color filter to transmit light in a second emission time period to form a second display pattern. The first emission time period and the second emission time period are alternately repeated to combine the first display pattern and the second display pattern to obtain an intended display pattern when the display apparatus displays the intended display pattern.
Claims19
A display apparatus comprising:
- a first light source to emit light having a first spectrum having a first peak wavelength;
- a second light source to emit light having a second spectrum having a second peak wavelength longer than the first peak wavelength;
- a third light source to emit light having a third spectrum having a third peak wavelength between the first peak wavelength and the second peak wavelength;
- a first color filter to transmit light having a wavelength corresponding to the first spectrum;
- a second color filter to transmit light having a wavelength corresponding to the second spectrum;
- a third color filter to transmit light having a wavelength corresponding to the third spectrum;
- and
- an opto-functional device configured to control transmissive and intransmissive states of each of the first color filter, the second color filter, and the third color filter at each sub-pixel, the first light source and the second light source being allowed to emit light in a first emission time period to form a first display pattern, the third light source being allowed to emit light and the opto-functional device controlling the third color filter to transmit light in a second emission time period to form a second display pattern, the first emission time period and the second emission time period being alternately repeated to combine the first display pattern and the second display pattern to obtain an intended display pattern when the display apparatus displays the intended display pattern.
A method of controlling a display apparatus, comprising:
- controlling a first light source and a second light source to emit light in a first emission time period to form a first display pattern, the first light source being provided to emit light having a first spectrum having a first peak wavelength, the second light source being provided to emit light having a second spectrum having a second peak wavelength longer than the first peak wavelength;
- controlling a third light source to emit light and a color filter to transmit light emitted by the third light source in a second emission time period to form a second display pattern, the third light source being provided to emit light having the third spectrum having a third peak wavelength between the first peak wavelength and the second peak wavelength;
- and
- repeating the first emission time period and the second emission time period alternately to combine the first display pattern and the second display pattern to obtain an intended display pattern.
Dependencies are inferred from the claim text.