Granted Patent B2

US 12,469,730 · App. 17/876,377 · Granted Nov 11, 2025

Inventors: Byung Kyu Son (Yongin-si, KR); Dae Hong Kim (Yongin-si, KR)

Assignee: Samsung Display Co., Ltd.

H01L21/68H01L21/67259H01L24/95H01L25/167H01L24/24H01L24/25H01L2224/24051H01L2224/24146H01L2224/25175H01L2224/95102H01L2224/95133

Abstract

Claims (9)

1 . A display panel manufacturing apparatus for manufacturing a display panel which is on a lower stage and includes light emitting elements, the display panel manufacturing apparatus comprising:

a power supply configured to supply an alignment voltage for aligning the light emitting elements on the display panel; and

an upper stage comprising a probe unit to provide the alignment voltage to the display panel and magnetic sensors to sense an alignment state of the light emitting elements.

2 . The display panel manufacturing apparatus of claim 1 , wherein the magnetic sensors are located on the upper stage while being spaced apart from each other.

3 . The display panel manufacturing apparatus of claim 1 , wherein, when the alignment voltage is applied, the magnetic sensors sense a magnetic field change occurring at both end portions of the light emitting elements.

4 . The display panel manufacturing apparatus of claim 1 , wherein the magnetic sensors include a hole sensor or a magnetoresistive sensor.

5 . The display panel manufacturing apparatus of claim 1 , wherein a size and a shape of the magnetic sensors are determined corresponding to a unit sensing area of the display panel.

6 . The display panel manufacturing apparatus of claim 5 , wherein the unit sensing area is an area defined to sense the alignment state of the light emitting elements on the display panel.

7 . The display panel manufacturing apparatus of claim 1 , wherein the probe unit is located at both sides of the upper stage to be spaced apart from the magnetic sensors.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (15)