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Laser induced thermal imaging apparatus and laser induced thermal imaging method

a thermal imaging and laser induced technology, applied in the direction of diffusion transfer process, instruments, photosensitive materials, etc., can solve the problems of adverse effect on reliability and duration of products, and the imaging from the imaging layer is not carried out well

Inactive Publication Date: 2011-01-18
SAMSUNG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when performing the laser induced thermal imaging in the vacuum state according to the prior art, there has been a problem that the imaging from the imaging layer is not carried out well due to a foreign substance (or impurities) or a space (void or gap) generated between the donor substrate and the acceptor substrate.
However, in such a prior art, since the generation of the foreign substance 1 and the void between the acceptor substrate 14 and the donor film 15 cannot be completely prevented and furthermore, the vacuum state inside the chamber 11 cannot be maintained, it has been known to have an adverse effect on reliability and duration of a product.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

first embodiment

[0029]The first embodiment according to the present invention represents a contact process (or adhering process) of a donor film 200 and an acceptor substrate 300 using a substrate stage 110 that includes an electromagnet and a contact frame 130 having a predetermined pattern of opening portions and permanent magnets. The opening portions on the contact frame 130 may be openings or may be transmitting portions covered with transparent material such as glass or transparent polymer. The substrate stage 110 includes one or more magnets 111, which may be permanent magnets, electromagnets, magnetic substance, or any other suitable material having magnetic properties.

[0030]The chamber 150 may be a chamber used in the conventional laser induced thermal imaging apparatus and the inside of the chamber 150 is mounted with at least the substrate stage 110 and adapted to receive the contact frame 130, etc. Inside the chamber 150, the donor film 200 and the acceptor substrate 300 can be transfer...

second embodiment

[0048]The second embodiment according to the present invention represents a contacting (or adhering) process of a donor film 200 and an acceptor substrate 300 using a substrate stage including one or more permanent magnets and a contact frame including a pattern (e.g., a predetermined pattern) of opening portions and one or more permanent magnets.

[0049]Referring back to FIG. 2, the substrate stage 110 is positioned at or near a bottom side of the chamber 150, and in the second embodiment, the substrate stage 110 is provided with at least one permanent magnet. In the described embodiment, a permanent magnet is provided inside the substrate stage 110.

[0050]The contact frame 130 includes one or more permanent magnets to form magnetic force with the one or more electromagnets of the substrate stage, resulting in strongly laminating the donor film 200 and the acceptor substrate 300 positioned between the substrate stage 110 and the contact frame 130. In the described embodiment, the cont...

third embodiment

[0053]The third embodiment according to the present invention represents a contacting process of a donor film 200 and an acceptor substrate 300 using a substrate stage including one or more permanent magnets and a contact frame including a predetermined pattern of opening portions and one or more electromagnets.

[0054]The substrate stage 110 is positioned at or near a bottom side of a chamber 150, and in the third embodiment, the substrate stage 110 is provided with at least one permanent magnet. In the described embodiment, a permanent magnet is provided inside the substrate stage 110. In the described embodiment, the permanent magnet may consist of (or include) permanent magnet nano particles.

[0055]In the described embodiment, the contact frame 130 includes one or more electromagnets to form a magnetic force with one or more permanent magnets of the substrate stage 110, resulting in strongly laminating the donor film 200 and the acceptor substrate 300 positioned between the substra...

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Abstract

A laser induced thermal imaging apparatus for imaging an imaging layer of a donor film on an acceptor substrate. The laser induced thermal imaging apparatus includes: a substrate stage having an electromagnet, and adapted to receive an acceptor substrate having a pixel area of the organic light emitting device and a donor film including the organic light emitting layer to be imaged on the pixel area; a laser oscillator for irradiating a laser on the donor film; a contact frame adapted to be located between the substrate stage and the laser oscillator and including an opening portion of a pattern corresponding to a part to be imaged of the donor film and a permanent magnet for forming a magnetic force with the substrate stage; and a contact frame moving mechanism for moving the contact frame toward the substrate stage.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority to and the benefit of Korean Patent Application No. 10-2005-0109825 filed on Nov. 16, 2005, and Korean Patent Application No. 10-2005-0105695 filed on Nov. 4, 2005, in the Korean Intellectual Property Office, the entire contents of both of which are incorporated herein by reference.BACKGROUND[0002]1. Field of the Invention[0003]The present invention relates to a laser induced thermal imaging apparatus and laser induced thermal imaging method, and more particularly, to a laser induced thermal imaging apparatus and laser induced thermal imaging method for performing a process of laminating a donor film and an acceptor substrate by using magnetic force.[0004]2. Discussion of Related Art[0005]An organic light emitting device is a device that has a light emitting layer located between a first electrode and a second electrode. The organic light emitting device emits light by combining holes and electrons at the ...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): G03C8/00G03C5/00G03C1/00G03F7/00H01L21/00
Inventor NOH, SOK WONKIM, MU HYUNLEE, SEONG TAEKKIM, SUN HOESEONG, JIN WOOKSONG, MYUNG WONLEE, SANG BONG
Owner SAMSUNG DISPLAY CO LTD