System and method of controlling position of motor

Patent metadata

Field	Value
Publication number	US-12489381-B2
Application number	US-202318139676-A
Country	US
Kind code	B2
Filing date	Apr 26, 2023
Priority date	Apr 26, 2022
Publication date	Dec 2, 2025
Grant date	Dec 2, 2025

Abstract

A motor position control system includes a central server including first information of a first display device and second information of a second display device, and a motor position control device which controls positions of the plurality of motors, where the motor position control device includes a controller which receives the first and the second information from the central server and store the first and the second information in a memory, controls the positions of the plurality of motors based on the first information, calculates at least one value based on the first and the second information, selects at least some motors based on the at least one value, and controls positions of the at least some motors based on the at least one value.

First claim

What is claimed is:

1 . A motor position control system for a plurality of motors used to sequentially manufacture a first display device and a second display device, the motor position control system comprising:
a central server including first information of the first display device and second information of the second display device; and a motor position control device which controls positions of the plurality of motors, wherein the motor position control device comprises:
a memory; and
a controller which receives the first information and the second information from the central server and store the first information and the second information in the memory, controls the positions of the plurality of motors based on the first information, calculates at least one value based on the first information and the second information, selects at least some motors from among the plurality of motors based on the at least one value, and controls positions of the at least some motors based on the at least one value.

2 . The motor position control system of claim 1 , wherein the controller comprises:
a source table driver which generates at least one calculation value based on the first information and the second information using a source table; a job table driver which generates control values respectively corresponding to the at least some motors based on the at least one calculation value using a job table; and a data manager which transmits the first information and the second information to the source table driver, and transmits the at least one calculation value to the job table driver.

3 . The motor position control system of claim 2 , wherein the source table comprises a spreadsheet which receives, in a plurality of cells therein, the first information and the second information as an input and generates the at least one calculation value.

4 . The motor position control system of claim 2 , wherein
the source table stores at least one preset formula which uses the first information and the second information as variables, and the at least one calculation value is calculated based on the at least one preset formula.

5 . The motor position control system of claim 2 , wherein
the at least one calculation value is in plurality, and the job table driver generates control values respectively corresponding to the plurality of motors using the job table which refers to a plurality of calculation values calculated from the source table, and the controller selects the at least some motors having a corresponding control value which is not 0 from among the plurality of motors.

6 . The motor position control system of claim 1 , wherein the controller controls a position of a rotor of the at least some motors in a way such that a device connected to the at least some motors is moved from an initial position based on the at least one value.

7 . The motor position control system of claim 1 , wherein the controller controls a position of a rotor of the at least some motors based on the at least one value in a way such that a device connected to the at least some motors is moved.

8 . The motor position control system of claim 1 , wherein the controller determines whether a position of an alignment mark of a sample substrate on a worktable, which is measured using an imaging device connected to the at least some motors, is within an error range of a preset alignment position, and recalculates, when the position of the alignment mark of the sample substrate is outside the error range of the preset alignment position, at least one value based on the first information and the second information.

9 . The motor position control system of claim 1 , wherein the controller determines whether a position of a sample window attached to a sample substrate on a worktable, using a roller connected to the at least some motors, is within an error range of a preset attachment position, and recalculates, when the position of the sample window is outside the error range of the preset attachment position, at least one value based on the first information and the second information.

10 . The motor position control system of claim 1 , wherein
the first information comprises information about a first display panel, a first window, and a first driver integrated circuit, which constitute the first display device, and the second information comprises information about a second display panel, a second window, and a second driver integrated circuit, which constitute the second display device.

11 . A motor position control method for a plurality of motors used to sequentially manufacture a first display device and a second display device, the motor position control method comprising:
controlling positions of the plurality of motors based on first information of the first display device; receiving second information of the second display device; calculating at least one value based on the first information and the second information; selecting at least some motors from among the plurality of motors based on the at least one value; and controlling positions of the at least some motors based on the at least one value.

12 . The motor position control method of claim 11 , wherein the calculating the at least one value comprises calculating the at least one value by inputting the first information and the second information into a plurality of cells constituting a spreadsheet.

13 . The motor position control method of claim 11 , wherein the calculating the at least one value comprises calculating the at least one value based on at least one preset formula which uses the first information and the second information as variables.

14 . The motor position control method of claim 13 , wherein the at least one preset formula is stored in a spreadsheet.

15 . The motor position control method of claim 11 , wherein
the at least one value is in plurality, and the selecting the at least some motors comprises:
generating control values respectively corresponding to the plurality of motors by referring to a plurality of calculated values; and
selecting the at least some motors having a corresponding control value which is not 0 from among the plurality of motors.

16 . The motor position control method of claim 11 , wherein the controlling the positions of the at least some motors comprises controlling a position of a rotor of the at least some motors in a way such that a device connected to the at least some motors is moved from an initial position based on the at least one value.

17 . The motor position control method of claim 11 , wherein the controlling the positions of the at least some motors comprises controlling a position of a rotor of the at least some motors based on the at least one value in a way such that a device connected to the at least some motors is moved.

18 . The motor position control method of claim 11 , further comprising:
determining whether a position of an alignment mark of a sample substrate on a worktable, which is measured using an imaging device connected to the at least some motors, is within an error range of a preset alignment position; and recalculating at least one value based on the first information and the second information when the position of the alignment mark of the sample substrate is outside the error range of the preset alignment position.

19 . The motor position control method of claim 11 , further comprising:
determining whether a position of a sample window attached to a sample substrat

Assignees

• Samsung Display Co Ltd

Inventors

• Park Sungjoon
• Kwak Sungshin
• Kim Minkyu
• Mun Hongju

Classifications

• G05B19/4155

  characterised by program execution, i.e. part program or machine function execution, e.g. selection of a program · CPC title

• G05B2219/43196

  Using two motors · CPC title

• Y10S388/9075

  Computer or microprocessor · CPC title

• H10K71/00

  Manufacture or treatment specially adapted for the organic devices covered by this subclass · CPC title

• G02F1/1303

  Apparatus specially adapted to the manufacture of LCDs · CPC title