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Light emitting device and electronic equipment including a light reflection layer, an insulation layer, and a plurality of pixel electrodes

專利號(hào)
US12178080B2
公開日期
2024-12-24
申請(qǐng)人
SEIKO EPSON CORPORATION(JP Tokyo)
發(fā)明人
Takeshi Koshihara; Ryoichi Nozawa
IPC分類
H10K59/121; H10K50/00; H10K50/805; H10K50/818; H10K50/824; H10K50/852; H10K50/856; H10K59/12; H10K59/123; H10K59/124; H10K59/126; H10K59/30; H10K59/35; H10K59/38; H10K102/00
技術(shù)領(lǐng)域
insulation,electrode,pixel,film,light,layer,emission,emitting,in,relay
地域: Tokyo

摘要

A light emitting device includes a transistor, a light reflection layer, a first insulation layer that includes a first layer thickness part, a second layer thickness part, and a third layer thickness part, a pixel electrode that is provided on the first insulation layer, a second insulation layer that covers a peripheral section of the pixel electrode, a light emission functional layer, a facing electrode, and a conductive layer that is provided on the first layer thickness part. The pixel electrode includes a first pixel electrode which is provided in the first layer thickness part, a second pixel electrode which is provided in the second layer thickness part, and a third pixel electrode which is provided in the third layer thickness part. The first pixel electrode, the second pixel electrode, and the third pixel electrode are connected to the transistor through the conductive layer.

說明書

The wiring which is connected to the first interlayer insulation film 15 and the source electrode 23s is covered by the second interlayer insulation film 16. In the second interlayer insulation film 16, a contact hole which reaches the wiring connected to the source electrode 23s is provided. A conductive film, which coats at least the inside of the contact hole and covers a surface of the second interlayer insulation film 16, is formed. When the conductive film is patterned, wiring is provided on the second interlayer insulation film 16. The second interlayer insulation film 16 is covered by the third interlayer insulation film 17. In the third interlayer insulation film 17, a contact hole, which reaches the wiring provided on the second interlayer insulation film 16, is provided. A conductive film, which coats at least the inside of the contact hole and covers a surface of the third interlayer insulation film 17, is formed. When the conductive film is patterned, the power line 14 and the relay electrode 14c are provided on the third interlayer insulation film 17.

As described above, the power line 14 is provided on approximately the whole surface of the display area E, and includes openings for each of the light emitting pixels 20B, 20G, and 20R. The relay electrode 14c is provided in an island shape in the opening of the power line 14 with regard to each of the light emitting pixels 20B, 20G, and 20R. In addition, the relay electrode 14c forms a part of the wiring which electrically connects the pixel electrode 31 to the third transistor 23.

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