Apparatus and method for testing pressure sensor and display device using the same

Patent metadata

Field	Value
Publication number	US-12025519-B2
Application number	US-202117520412-A
Country	US
Kind code	B2
Filing date	Nov 5, 2021
Priority date	Aug 16, 2018
Publication date	Jul 2, 2024
Grant date	Jul 2, 2024

Abstract

A test apparatus includes: a stage having a planar surface extending in a first direction and a second direction crossing the first direction; a mounting portion that is disposed on the stage to place a test member thereon; an angle adjusting portion adjusting a first angle of the mounting portion to incline the mounting portion with respect to the planar surface of the stage; and a pressing guide disposed on the stage and moving a pressing member in the first direction, the second direction, and a third direction normal to the planar surface of the stage.

First claim

What is claimed is:

1. A test method, comprising:
placing a test member on a mounting portion;
adjusting an inclined angle of the mounting portion using an angle adjusting portion;
adjusting a position of a pressing guide to correspond to a measurement position of the test member;
pressing the test member using a pressing member of the pressing guide; and
transmitting pressure information measured by at least one pressure sensor internal to the test member to an external appliance and displaying the pressure informations,
wherein, in the pressing the test member using the pressing member of the pressing guide, amounts of pressure applied to the test member are sequentially changed, operation time of the test member is checked, and a pressure threshold value at which the test member operates is recorded on a storage.

2. The method of claim 1 ,
wherein the test member is a display device including a flat portion and at least one curved portion extending from the flat portion, and the at least one curved portion is provided with the at least one pressure sensor.

3. The method of claim 2 ,
wherein, in the adjusting the inclined angle of the mounting portion using the angle adjusting portion, the inclined angle of the mounting portion is adjusted such that the pressing member vertically presses the curved portion of the display device.

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Tae Hee
• Park Sung Kook
• Park So Hee
• Seomoon Hee
• Hong Won Ki

Classifications

• G06F3/0418

  for error correction or compensation, e.g. based on parallax, calibration or alignment · CPC title

• G06F3/14

  Digital output to display device {; Cooperation and interconnection of the display device with other functional units} · CPC title

• G01G23/3721

  with particular representation of the result, e.g. graphic · CPC title

• G01M99/008

  by doing functionality tests · CPC title

• G01L25/00 Primary

  Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency · CPC title