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Manufacturing method for light-emitting devices

A light-emitting device and manufacturing method technology, applied in the direction of lighting devices, electroluminescent light sources, semiconductor/solid-state device manufacturing, etc., can solve problems such as defective components, and achieve the effect of suppressing defective components

Inactive Publication Date: 2012-11-07
SUMITOMO CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the ink is cured in the state where the missing coating has occurred, there is a problem that a hole is formed in the organic EL layer, thereby causing a device defect, etc.

Method used

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  • Manufacturing method for light-emitting devices
  • Manufacturing method for light-emitting devices
  • Manufacturing method for light-emitting devices

Examples

Experimental program
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Effect test

Embodiment Construction

[0025] In the method for manufacturing a light-emitting device according to the present invention, the light-emitting device has a support substrate; and multiple light-emitting devices extending in a predetermined row direction on the support substrate and arranged at predetermined intervals in a column direction different from the row direction. a partition; a plurality of organic electroluminescent elements having a first electrode, a second electrode, and an organic electroluminescent layer sandwiched between the first electrode and the second electrode, and arranged between the partitions, that is, recesses, the The manufacturing method includes the steps of: preparing the supporting substrate provided with the first electrode of each organic electroluminescent element and a plurality of partition walls; In the case of the ink of the material, the supply position of the ink is changed in the column direction, the ink is supplied to one of the recesses a plurality of times,...

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Abstract

Disclosed is a manufacturing method for light-emitting devices (21) which inhibits the formation of unwanted holes in the organic EL layer. Specifically disclosed is a manufacturing method for light-emitting devices comprising a support substrate (11), a plurality of partitions (17) positioned upon the support substrate so as to extend in a prescribed row direction and to be separated by a prescribed interval in a column direction different from the row direction, first electrodes (12), second electrodes (16), an organic EL layer, and a plurality of organic EL elements provided in the recesses (18) formed between the partitions, said method including a step for forming an organic EL layer, wherein an ink including a material that will form the organic EL layer is supplied to the recesses a plurality of times in a manner such that the ink is supplied at different positions along the column direction as the ink is supplied to each of the recesses in the row direction, and then the ink hardens.

Description

technical field [0001] The present invention relates to a method of manufacturing a light emitting device. Background technique [0002] Display devices include various devices such as liquid crystal display devices and plasma display devices. As one of them, an organic electroluminescent element (organic electroluminescent element) (hereinafter referred to as an organic EL element) is used as a light source for a pixel. The device is currently being put into practical use. This display device has a plurality of organic EL elements arranged on a substrate. Barrier ribs for partitioning the organic EL elements are arranged in strips on the substrate. Each organic EL element is provided in a region partitioned in a strip shape by the substrate and the partition walls. [0003] A plurality of organic EL elements are respectively arranged between a plurality of partition walls (may be called a recess), and a plurality of organic EL elements are respectively arranged at predet...

Claims

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Application Information

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IPC IPC(8): H05B33/10H01L51/50H05B33/12H05B33/22
CPCH05B33/10H01L27/3283H01L27/3246H01L51/0005H10K59/173H10K71/135H10K59/122H05B33/22
Inventor 合田匡志
Owner SUMITOMO CHEM CO LTD
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