Apparatus for improving optical alignment of panels manufactured on a same mother substrate
US10718978B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 24, 2016 |
| Grant date | Jul 21, 2020 |
| Priority date | — |
| Expiry date | Oct 1, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133757
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is an apparatus for improving optical alignment of panels manufactured on a same mother substrate. The technical defect in the prior art which affects product quality can be eliminated. The apparatus for improving optical alignment of panels manufactured on a same mother substrate includes a mother substrate (1), N columns of chips in a first group (2), N columns of chips in a second group (3), and a photomask (4). The N columns of chips in the first group (2) and the N columns of chips in the second group (3) are arranged in an alternate manner and are arranged on the mother substrate (1). An area of the chips in the second group (3) is larger than an area of the chips in the first group (2). The photomask (4) covers the N columns of chips in the first group (2) and the N columns of chips in the second group (3) so that ultraviolet irradiates the N columns of chips in the first group (2) and the N columns of chips in the second group (3) after passing through the photomask (4). N is a positive integer. The apparatus can be used in manufacturing of TFT-LCD.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.