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Substrate for electronic device and electronic device using the same

A technology for electronic devices and substrates, which is applied in the field of substrates for electronic devices to achieve the effect of high effective area and suppression of short circuit between electrodes

Active Publication Date: 2016-08-03
AGC INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, on the glass substrate after grinding, minute grinding scratches are formed on the surface, which causes a short circuit between the anode and the cathode.

Method used

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  • Substrate for electronic device and electronic device using the same
  • Substrate for electronic device and electronic device using the same
  • Substrate for electronic device and electronic device using the same

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0113] Hereinafter, the substrate for an electronic device (translucent substrate with electrodes) and the organic LED element according to the first embodiment of the present invention will be described with reference to the drawings. figure 1 (a) is a substrate for an electronic device according to the first embodiment of the present invention, figure 1 (b) is a cross-sectional view showing the structure of an organic LED element having the substrate for electronic devices.

[0114] The electronic device substrate for forming the organic LED element of the present invention, such as figure 1 As shown in (a), it is characterized by having a glass substrate 101 and a scattering layer 102 including a glass layer formed on a surface 101a on the first main surface side of the glass substrate 101, and the scattering layer 102 has a The second surface 102b that is in contact with the surface 101a on the first main surface side and the first surface 102a that is opposite to the second su...

no. 2 approach

[0331] (Other structural examples of organic LED elements)

[0332] Hereinafter, the structure of the substrate for an electronic device and the organic LED element of the second embodiment of the present invention will be described using the drawings. In addition, for figure 1 The same structure is marked with the same number, and the description is omitted. Figure 23 It is a cross-sectional view showing another structure of the translucent substrate for an organic LED element of the present invention and an organic LED element formed using the substrate. Another organic LED element of the present invention is composed of a translucent substrate 1400 with translucent electrodes, an organic layer 1410, and a reflective electrode 120. The translucent substrate 1400 with translucent electrodes is composed of a translucent substrate 101, a scattering layer 1401, and a translucent electrode 103. The organic layer 1410 is composed of a hole injection / transport layer 1411, a light em...

Embodiment

[0337] (Verification of the effect of the scattering layer)

[0338] Hereinafter, the verification process that the scattering layer is effective for improving the light extraction efficiency will be explained. Sample 1 is an example provided with the undulating scattering layer of the present invention, and sample 2 is a comparative example provided with a scattering layer in which no scattering material is provided. The calculation method is the same as the calculation method of the scattering layer described above. Below, the conditions and results (front extraction efficiency) are listed in Table 2.

[0339] Table 2

[0340]

Sample 1

Sample 2

Electron injection / transport layer

Thickness (μm)

1

1

Refractive index

1.9

1.9

Luminescent layer

Thickness (μm)

1

1

Refractive index

1.9

1.9

Hole injection / transport layer

Thickness (μm)

1

1

Refractive index

1.9

1.9

Scattering layer

Substrate

Thickness (μm)

30

30

[0341] Refractive index

1.9

1....

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Abstract

The present invention provides electronic devices with long life and high effective area. Additionally, optics are provided that can suppress mirror visibility. Provided is a substrate for an optical device including a scattering layer having excellent scattering properties and a desired refractive index while maintaining surface smoothness. A substrate for an electronic device, comprising: a substrate having a first main surface and a second main surface opposite to each other; and an electrode pattern on the first main surface of the substrate; wherein the first main surface Among the surface and the second main surface, the first main surface is a surface that constitutes undulations composed of curved surfaces, the wavelength Rλa of the undulations on the surface is greater than 50 μm, and the roughness Ra of the undulations that constitutes the undulations is The ratio Ra / Rλa to the wavelength Rλa of waviness is 1.0×10 ‑4 Above, 3.0×10 ‑2 the following.

Description

Technical field [0001] The present invention relates to a substrate for an electronic device and an electronic device using the substrate, and more particularly to a substrate for electronic devices such as organic LED (Organic Light Emitting Diode). Background technique [0002] The organic LED element is to sandwich the organic layer between the electrodes, apply a voltage between the electrodes, inject holes and electrons to recombine in the organic layer, and extract the light generated during the process of light-emitting molecules from the excited state to the ground state The components are used in displays, backlights, and lighting applications. [0003] The refractive index of the organic layer is about 1.8 to about 2.1 at 430 nm. On the other hand, for example, when ITO (Indium Tin Oxide: Indium Tin Oxide) is used as the translucent electrode layer, the refractive index varies depending on the ITO film forming conditions or composition (Sn-In ratio), and is generally abo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B33/02C03C3/16C03C3/19C03C17/38G02B5/02H01L51/50
CPCC03C8/08C03C17/34C03C2217/425C03C2217/77G02B5/02Y02E10/549H10K77/10H10K50/854H10K50/80H10K50/828
Inventor 中村伸宏石桥奈央
Owner AGC INC
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