基本信息:
- 专利标题： WRITING AND DRAWING DEVICE
- 申请号：EP20305774.0 申请日：2020-07-07
- 公开(公告)号：EP3936933A1 公开(公告)日：2022-01-12
- 发明人： FOLGOAS, Loïc , GEORGAKIS, Georgios
- 申请人： Société BIC , BIC Violex S.A.
- 申请人地址： FR 92110 Clichy 14, rue Jeanne d'Asnières; GR 14569 Anoixi 58, Agiou Athanasiou st.
- 代理机构： Cabinet Beau de Loménie
- 主分类号： G02F1/1334
- IPC分类号： G02F1/1334 ; G02F1/1333 ; G02F1/137
摘要：
A tablet (10) configured for writing and drawing including a housing (80), a first layer (20) arranged within the housing (80) and including a dispersion of cholesteric liquid crystal material and polymer (26), a second layer (40) arranged within the housing (80) and positioned rearward the first layer (20), the second layer (20) configured to transition between a first state and a second state within the housing (80), and wherein the user is capable of seeing through the tablet (10) when the second layer (40) is in the first state and the user is no longer capable of seeing through the tablet (10) when the second layer (40) is in the second state.
IPC结构图谱:
| G | 物理 |
| --G02 | 光学 |
| ----G02F | 用于控制光的强度、颜色、相位、偏振或方向的器件或装置，例如转换、选通、调制或解调，上述器件或装置的光学操作是通过改变器件或装置的介质的光学性质来修改的；用于上述操作的技术或工艺；变频；非线性光学；光学逻辑元件；光学模拟/数字转换器 |
| ------G02F1/00 | 控制来自独立光源的光的强度、颜色、相位、偏振或方向的器件或装置，例如，转换、选通或调制；非线性光学 |
| --------G02F1/01 | .对强度、相位、偏振或颜色的控制 |
| ----------G02F1/09 | ..基于磁—光元件的，例如，呈现法拉第效应的 |
| ------------G02F1/133 | ...构造上的设备；液晶单元的工作；电路装置 |
| --------------G02F1/1333 | ....构造上的设备 |
| ----------------G02F1/1334 | .....基于聚合物分散型液晶，例如微囊密封型液晶的 |