IP Library Granted Patent US 11,796,372
Granted Patent B2
US 11,796,372 · App. 16/994,001 · Granted Oct 24, 2023

Apparatus for manufacturing display apparatus, method of measuring droplet, and method of manufacturing display apparatus

Inventor: Jeongwon Han (Yongin-si, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
G01F22/00G01B11/303G06T7/0004G06T7/62G06T2207/30121G06T2207/30144
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Quick Facts
Patent No.
US 11,796,372
App. No.
16/994,001
Granted
Oct 24, 2023
Kind
B2
Abstract

An apparatus for manufacturing a display apparatus includes at least one test table on which a droplet is disposed, at least one profile measurement portion disposed adjacent to the at least one test table to measure a surface profile of the at least one test table and a surface profile of the droplet disposed on the at least one test table, and a controller electrically connected to the at least one profile measurement portion to measure a volume of the droplet from a difference between the surface profile of the at least one test table and the surface profile of the droplet disposed on the at least one test table.

Claims (56)

1. An apparatus for manufacturing a display apparatus, the apparatus comprising:

at least one test table on which a droplet is disposed;

at least one profile measurement portion disposed adjacent to the at least one test table to measure a surface profile of the at least one test table and a surface profile of the droplet disposed on the at least one test table; and

a controller electrically connected to the at least one profile measurement portion to measure a volume of the droplet from a difference between the surface profile of the at least one test table and the surface profile of the droplet disposed on the at least one test table.

2. The apparatus of claim 1 , wherein

the at least one profile measurement portion comprises a first profile measurement portion and a second profile measurement portion,

the at least one test table comprises a first test table and a second test table,

the first profile measurement portion measures a surface profile of the first test table, and

the second profile measurement portion measures a surface profile of the second test table.

3. The apparatus of claim 1 , wherein

the at least one profile measurement portion comprises a first profile measurement portion and a second profile measurement portion,

the first profile measurement portion measures a surface profile of a first region of the at least one test table, and

the second profile measurement portion measures a surface profile of a second region of the at least one test table.

4. The apparatus of claim 1 , wherein the at least one test table comprises:

a film feeder that feeds a film on which the droplet is disposed; and

a film collector that collects the film.

5. The apparatus of claim 1 , further comprising:

a droplet discharger that includes a nozzle head and discharges the droplet to the at least one test table.

6. A method of measuring a droplet, the method comprising:

measuring a surface profile of at least one test table;

disposing a droplet on the at least one test table;

measuring a surface profile of the droplet disposed on the at least one test table; and

measuring a volume of the droplet from a difference between the surface profile of the at least one test table and the surface profile of the droplet disposed on the at least one test table.

7. The method of claim 6 , wherein

the at least one test table comprises a first test table and a second test table, and

a surface profile of a droplet disposed on the second test table is measured when measuring a surface profile of the first test table.

8. The method of claim 6 , wherein

the at least one test table comprises a first test table and a second test table, and

a surface profile of the first test table and a surface profile of the second test table are simultaneously measured.

9. The method of claim 6 , wherein the measuring of the surface profile comprises:

measuring a surface profile of a first region of the at least one test table; and

measuring a surface profile of a second region of the at least one test table.

10. The method of claim 6 , wherein the disposing of the droplet on the at least one test table comprises:

discharging the droplet to a film of the at least one test table; and

collecting the film.

11. A method of manufacturing a display apparatus, the method comprising:

measuring a surface profile of at least one test table;

disposing a droplet on the at least one test table;

measuring a surface profile of the droplet disposed on the at least one test table;

measuring a volume of the droplet from a difference between the surface profile of the at least one test table and the surface profile of the droplet disposed on the at least one test table; and

discharging the droplet to a substrate in accordance with the measured volume of the droplet.

12. The method of claim 11 , wherein

the at least one test table comprises a first test table and a second test table, and

a surface profile of a droplet disposed on the second test table is measured when measuring a surface profile of the first test table.

13. The method of claim 11 , wherein

the at least one test table comprises a first test table and a second test table, and

a surface profile of the first test table and a surface profile of the second test table are simultaneously measured.

14. The method of claim 11 , wherein the measuring of the surface profile comprises:

measuring a surface profile of a first region of the at least one test table; and

measuring a surface profile of a second region of the at least one test table.

15. The method of claim 11 , wherein the measuring of the volume of the droplet comprises:

measuring a surface profile of a first region of the at least one test table and a surface profile of a second region of the at least one test table; and

measuring a size of a droplet disposed on the first region and a size of a droplet disposed on the second region.

16. The method of claim 11 , wherein the disposing of the droplet on the at least one test table comprises:

discharging the droplet to a film of the at least one test table; and

collecting the film.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 14, 2020
From: HAN, JEONGWON
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 053505/0466 →
Priority Claims (1)
KR 10-2020-0018570 · Feb 14, 2020 · national
Continuity (1)
Related Publication 20210255019A1 · Aug 19, 2021