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US 11,308,902 B2Granted
Spatial light modulator
AssigneeNational Yang Ming Chiao Tung University
InventorsHuang-Ming Chen, Jhou-Pu Yang
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Abstract
A spatial light modulator includes a panel and a driver board. The panel includes an ultra-high pixel density backplane and a liquid crystal layer. The ultra-high pixel density backplane includes a pixel array with at least 4000 PPI. The liquid crystal layer includes an ultra-high figure-of-merit liquid crystal material with a first figure-of-merit value. The driver board is connected to the panel for driving the panel by executing a fast panel driving procedure design to achieve low phase error.
Claims10
A spatial light modulator comprises:
- a panel including:
- a backplane having a pixel array, wherein the pixel array is provided with a pixel density of at least 4000 PPI (pixels per inch);
- and
- a liquid crystal layer having a liquid crystal material, wherein the liquid crystal material is provided with a first figure-of-merit;
- and
- a panel driver electrically connected to the panel for driving the panel according to a fast panel driving procedure design;
- wherein the first figure-of-merit satisfies condition:
- FoM
-
- -
-
- 1
- =
- Δ
-
-
- n
- 2
- (
- γ
- 1
- k
- 11
- )
- >
- 15
-
-
- µm
- 2
-
- /
-
- s
- ,
- where FoM-1 represents the first figure-of-merit, Δn represents a birefringence of the liquid crystal material, γ1 represents a rotational viscosity coefficient of the liquid crystal material, and k11 represents a splay elastic constant of the liquid crystal material.
33 more elements
Dependencies are inferred from the claim text.