Patent ID: 11966143
Assignee: LG DISPLAY CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A light shutter panel comprising:
a lower electrode plate;
an upper electrode plate facing the lower electrode plate;
a shutter layer disposed between the lower electrode plate and the upper electrode plate, and including maximum light transmitting portions, minimum light blocking portions, ink storage portions connecting the maximum light transmitting portions and the minimum light blocking portions, and an electric field guide disposed between the ink storage portions, the ink storage portions including a first ink storage portion and a second ink storage portion that is adjacent to the first ink storage portion without another ink storage portion from the ink storage portions between the first ink storage portion and the second ink storage portion;
a plurality of spacers maintaining a gap between the lower electrode plate and the upper electrode plate; and
black ink filled into the ink storage portions of the shutter layer,
wherein a height of the electric field guide is smaller than the gap between the lower electrode plate and the upper electrode plate,
wherein the light shutter panel is configured to operate in a light blocking mode that blocks light incident on the light shutter panel responsive to a first common voltage applied to the upper electrode plate and a second common voltage applied to the lower electrode plate that is different from the first common voltage, wherein black ink in the first ink storage portion and black ink in the second ink storage portion are on the upper electrode plate during the light blocking mode to block the incident light, and
wherein the light shutter panel is configured to operate in a light transmitting mode that allows the light incident on the light shutter panel to pass through a maximum light transmitting portion of the first ink storage portion and a maximum light transmitting portion of the second ink storage portion responsive to the second common voltage applied to the upper electrode plate and the first common voltage applied to the lower electrode plate, wherein the black ink in the first ink storage portion is on the lower electrode plate within a minimum light blocking portion of the first ink storage portion and the black ink in the second ink storage portion is on the lower electrode plate within a minimum light blocking portion of the second ink storage portion during the light transmitting mode to allow the incident light to pass through the maximum light transmitting portion of the first ink storage portion and through the maximum light transmitting portion of the second ink storage portion.