Transfer device and transfer method thereof
By controlling the electric field of the circuit board and liquid crystal light switch assembly in conjunction with the light source assembly, efficient batch transfer and selective stripping of Micro LED chips were achieved, solving the problem of low transfer efficiency in the prior art and improving transfer efficiency and yield.
CN115708217BActive Publication Date: 2026-07-03CHONGQING KONKA PHOTOELECTRIC TECH RES INST CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHONGQING KONKA PHOTOELECTRIC TECH RES INST CO LTD
- Filing Date
- 2021-08-18
- Publication Date
- 2026-07-03
Smart Images
Figure CN115708217B_ABST
Abstract
The present application relates to a transfer device and a transfer method thereof, wherein the transfer device is provided with a circuit board, a light source assembly, a first polarizing layer and a liquid crystal optical switch assembly; a pair of electrodes on the circuit board can generate an electric field when energized; the electric field can cause the arrangement direction of liquid crystal in a liquid crystal optical switch unit arranged in alignment with the pair of electrodes to change; when the light of the light source assembly passes through the first polarizing layer and irradiates the liquid crystal optical switch unit, the liquid crystal optical switch unit allows the light to irradiate a chip carrying area on a carrying substrate in alignment with the liquid crystal optical switch unit, so that a light emitting chip in the chip carrying area is separated from the carrying substrate, thereby realizing batch transfer of the light emitting chip.
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