Inkjet printing apparatus

Patent metadata

Field	Value
Publication number	US-12594773-B2
Application number	US-202418442110-A
Country	US
Kind code	B2
Filing date	Feb 15, 2024
Priority date	Jun 8, 2023
Publication date	Apr 7, 2026
Grant date	Apr 7, 2026

Abstract

An inkjet printing apparatus according to an embodiment includes a stage for supporting a substrate and an inkjet head disposed above the stage and discharging resin toward the stage. The stage includes a first stage part having a first thermal conductivity, and a second stage part disposed around the first stage part and surrounding at least a portion of the first stage part, wherein the second stage part has a second thermal conductivity that is greater than the first thermal conductivity.

First claim

What is claimed is:

1 . An inkjet printing apparatus, comprising:
a stage for supporting a substrate; and an inkjet head disposed above the stage and discharging resin toward the stage, wherein the stage comprises: a first stage part having a first thermal conductivity; and a second stage part disposed around the first stage part and surrounding at least a portion of the first stage part, the second stage part having a second thermal conductivity, wherein the second thermal conductivity is greater than the first thermal conductivity, and at least a portion of an upper surface of the first stage part is not covered by the second state part.

2 . The inkjet printing apparatus of claim 1 , wherein:
the substrate covers an entirety of the first stage part and covers at least a portion of the second stage part.

3 . The inkjet printing apparatus of claim 1 , wherein:
an edge of the substrate extends beyond an edge of the first stage part, and an edge of the second stage part extends beyond the edge of the substrate.

4 . The inkjet printing apparatus of claim 1 , wherein:
an upper surface of the first stage part and an upper surface of the second stage part are coplanar.

5 . The inkjet printing apparatus of claim 1 , wherein:
the second stage part includes a cooling unit.

6 . The inkjet printing apparatus of claim 1 , wherein:
the second stage part is disposed at a corner of the first stage part.

7 . The inkjet printing apparatus of claim 6 , wherein:
the second stage part is separable from the first stage part by being movable in a vertical direction relative to the first stage part while supporting the substrate.

8 . The inkjet printing apparatus of claim 6 , further comprising:
a third stage part disposed around the first stage part and having a third thermal conductivity that is higher than the first thermal conductivity.

9 . The inkjet printing apparatus of claim 8 , wherein:
the second stage part is separable from the third stage part, and at least one of the second stage part and the third stage part is movable in a vertical direction while supporting the substrate.

10 . The inkjet printing apparatus of claim 8 , wherein:
at least one of the second stage part and the third stage part includes a cooling unit.

11 . The inkjet printing apparatus of claim 1 , wherein:
the first stage part includes at least one of polyetheretherketone, polycarbonate, polyoxymethylene, and polypropylene.

12 . The inkjet printing apparatus of claim 1 , wherein:
the second stage part includes a metal.

13 . The inkjet printing apparatus of claim 1 , wherein:
the substrate includes a first region above the first stage part and a second region above the second stage part, and resin on the first region is at a higher temperature than resin on the second area.

14 . The inkjet printing apparatus of claim 13 , wherein:
a width of the second region above the second stage part is about 0.3 mm to about 3 mm.

15 . The inkjet printing apparatus of claim 1 , further comprising:
a third stage part overlapping at least a portion of the first stage part and having a higher thermal conductivity than the first stage part.

16 . The inkjet printing apparatus of claim 15 , wherein:
an upper surface of the first stage part and an upper surface of the third stage part are coplanar.

17 . The inkjet printing apparatus of claim 15 , wherein:
the first stage part includes at least one of polyetheretherketone, polycarbonate, polyoxymethylene, and polypropylene.

18 . The inkjet printing apparatus of claim 15 , wherein:
the third stage part includes metal.

19 . The inkjet printing apparatus of claim 15 , wherein:
the substrate includes a first region above the first stage part and a third region above the third stage part, and resin on the first region has a higher temperature than resin on the third region.

20 . The inkjet printing apparatus of claim 15 , wherein the third stage part includes a cooling unit.

Assignees

• Samsung Display Co Ltd

Inventors

• Moon Jeong Woo
• Kang Sung Yong
• Park Gounam
• Kim Jihoon
• You Jong Sung

Classifications

• B41J29/377 Primary

  Cooling or ventilating arrangements · CPC title

• C08L23/12

  Polypropene · CPC title

• C08L59/02

  Polyacetals containing polyoxymethylene sequences only · CPC title

• C08L69/00

  Compositions of polycarbonates; Compositions of derivatives of polycarbonates · CPC title

• C08L71/10

  from phenols · CPC title