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US 12,025,571 B2Granted
Optical inspection device for optical performance test of display device and optical inspection method using the same
AssigneeSamsung Display Co., Ltd.
InventorsGil Yeong Park, Min Kyoung Jung, Hee Young Lee
Life of this patent
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Abstract
An optical inspection device for an optical performance test of a display device including a lens part configured to transmit external light, a phase film part configured to change a phase difference of the external light and transmit the external light, and an image processor configured to obtain electrical information of the external light, in which a phase difference of the phase film part is at least 7000 nm.
Claims9
An optical inspection device for an optical performance test of a display device, comprising:
- a main body;
- a lens part disposed on the main body and configured to transmit external light;
- and
- a phase film part disposed between the main body and the lens part, and configured to change a phase difference of the external light and transmit the external light;
- and
- a phase retardation part disposed between the phase film part and the lens part, the phase retardation part being configured to retard a phase of light provided thereto,
- wherein the main body includes an image processor configured to obtain electrical information of the external light, and
- wherein a phase difference of the phase film part is at least 7000 nm.
5 more elements
Dependencies are inferred from the claim text.