Light-emitting device and manufacturing method thereof

A light-emitting device and light technology, which is applied in the direction of organic light-emitting devices, organic light-emitting device structures, semiconductor/solid-state device manufacturing, etc., can solve the problems of high price, unfavorable large-scale production, complicated process, etc. The effect of large-scale production and simple process
CN104409654AInactive Publication Date: 2015-03-11KUNSHAN NEW FLAT PANEL DISPLAY TECH CENT +1
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
KUNSHAN NEW FLAT PANEL DISPLAY TECH CENT
Publication Date
2015-03-11
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a light-emitting device and a manufacturing method thereof. The light-emitting device comprises an upper electrode, a lower electrode opposite to the upper electrode, an organic film layer arranged at one side of the upper electrode away from the lower electrode as well as a transparent film arranged between the upper electrode and the lower electrode; and the thicknesses of the transparent film in the zones of transmitting red, green and blue light rays are reduced in sequence. In the light-emitting device, the top light-emitting manner is employed and the emitted light needs to transmit the transparent film at twice, so that the optical path can be influenced twice and the manufacturing cost is saved. Different tiny cavities can be realized by changing the thickness of the transparent film; the upper electrode is in contact with the lower electrode in at least one of the zones of transmitting red, green and blue light rays, so that the light-emitting device has no contact hole, has a simple process and is easy for mass production. The invention further discloses the manufacturing method of the light-emitting device.
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Description

technical field

[0001] The invention relates to the field of organic electroluminescent devices, in particular to a light emitting device and a preparation method thereof. Background technique

[0002] Organic light-emitting diodes (Organic Light-Emitting Diode, OLED) have many advantages such as active light emission, high luminous efficiency, fast response time, low operating voltage, low power consumption, wide operating temperature range, and flexible display. application. White Organic Light-Emitting Diode (WOLED) is a surface light source. Compared with the point light source of Light-Emitting Diode (LED), it can be manufactured into a flat light source with a large area and any shape, which is more suitable for liquid crystals. Display backlight and full-color OLED display.

[0003] OLEDs are divided into bottom-emitting devices and top-emitting devices according to the light output method. Generally, WOLED technology realizes different microcavities by preparing o...

Claims

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