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US 11,378,816 B2Granted
Display device
AssigneeSamsung Display Co., Ltd.
InventorsJae Joong Kwon, Joo Woan Cho, Ju Hwa Ha
Life of this patent
Estimating the term…
Abstract
A display device includes a display unit that includes a plurality of pixels; a first lens array unit that includes a plurality of first lenses; and a second lens array unit disposed between the first lens array unit and the display unit and that includes a plurality of second lenses. Each of the first lenses overlaps two or more of the pixels, and a pitch of the second lenses is less than a pitch of the first lenses.
Claims13
A display device comprising:
- a display unit that includes a plurality of pixels;
- a first lens array unit that includes a plurality of first lenses, wherein each of the plurality of first lenses is a converging lens;
- and
- a second lens array unit disposed between the first lens array unit and the display unit and that includes a plurality of second lenses, wherein each of the plurality of second lenses is a converging lens,
- wherein each of the first lenses overlaps two or more of the pixels,
- a distance between two optical axes of adjacent two of the first lenses, both configured to pass light from the display unit, is equal to or greater than two times a pitch of the second lenses,
- such that light emitted from the plurality of pixels is refracted at the second lenses to generate enlarged pixel images which are then input to the first lens array unit, and
- wherein a number of the second lenses that face one first lens of the plurality of first lenses is equal to a number of pixels that face the one lens of the plurality of first lenses while the pitch of the second lenses is less than a pitch of the pixels,
- a straight line that connects a center of a pixel of the plurality pixels and a center of a second lens of the plurality of second lenses that corresponds to the pixel is not parallel with an optical axis of the second lens, and
- straight lines that connect centers of the pixels facing the one first lens and centers of the second lenses facing the one first lens converge on one point positioned in the one first lens.
7 more elements
A display device comprising:
- a display unit that includes a plurality of pixels;
- a first lens array unit that includes a plurality of first lenses, wherein each of the plurality of first lenses is a converging lens;
- and
- a second lens array unit disposed between the first lens array unit and the display unit and that includes a plurality of second lenses, wherein each of the plurality of second lenses is a converging lens,
- wherein a width of a second lens of the plurality of second lenses is equal to or less than a pitch of the pixels,
- a distance between two optical axes of adjacent two of the plurality of first lenses, both configured to pass light from the display unit, is equal to or greater than two times the width of the second lens such that light emitted from the plurality of pixels is refracted at the second lenses to generate enlarged pixel images which are then input to the first lens array unit,
- wherein letting a shortest distance between a center of the second lens and a center of a first lens of the plurality of first lenses be represented by D2 and a focal distance of the first lens be represented by f1, the following equation is satisfied:
- 0.5×f1≤D2≤1.5×f1.
5 more elements
A display device comprising:
- a display unit that includes a plurality of pixels;
- a first lens array unit that includes a plurality of first lenses, wherein each of the plurality of first lenses is a converging lens;
- and
- a second lens array unit disposed between the first lens array unit and the display unit and that includes a plurality of second lenses, wherein each of the plurality of second lenses is a converging lens,
- wherein a distance between two optical axes of adjacent two of the plurality of first lenses, both configured to pass light from the display unit, is equal to or greater than two times the width of the second lens,
- a number of the second lenses that face one first lens of the plurality of first lenses is equal to a number of pixels that face one lens of the plurality of first lenses such that light emitted from the plurality of pixels is refracted at the second lenses to generate enlarged pixel images which are then input to the first lens array unit, while the width of the second lens is less than a pitch of the pixels,
- a straight line that connects a center of a pixel of the plurality pixels and a center of a second lens of the plurality of second lenses that corresponds to the pixel is not parallel with an optical axis of the second lens, and
- straight lines that connect centers of the pixels facing the one first lens and centers of the second lenses facing the one first lens converge on one point positioned in the one first lens.
5 more elements
Dependencies are inferred from the claim text.