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Self-luminous display panel and method of manufacturing self-luminous display panel

A display panel and self-luminous technology, which is applied in semiconductor/solid-state device manufacturing, diodes, organic semiconductor devices, etc., can solve problems such as degradation, and achieve the effect of suppressing uneven viewing angles

Pending Publication Date: 2021-06-08
JOLED INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0024] In addition to organic EL display panels using organic EL elements as self-luminous elements, the same problems as above apply to inorganic EL display panels using inorganic EL elements and quantum dot displays using quantum dot light-emitting elements (QLED: quantum dot-LED). Problems commonly occurring in self-luminous display panels including self-luminous elements that may react with external moisture and oxygen to deteriorate, such as panels

Method used

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  • Self-luminous display panel and method of manufacturing self-luminous display panel

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Embodiment approach

[0085] Next, a self-emitting display panel according to a manner of the present invention will be described with reference to the drawings by a top emission type organic EL display panel. In addition, the drawings include schematic diagrams, there is a case where the scales, vertical and horizontal ratios, or the like are different.

no. 1 approach ＞

[0087] 1. Composition of the organic EL display panel 100

[0088] 1.1 constitutes an overview

[0089] figure 1 It is a planar layout of the organic EL display panel 100 of the first embodiment.

[0090] As shown in the figure, the organic EL display panel 100 has an image display region 10 in a plan view and a peripheral region 20 around the image display area 10.

[0091] A plurality of pixels are arranged in a matrix in the image display area 10. Each pixel includes a plurality of sub-pixels having a color, in the present embodiment, the pixels include red sub-pixels, green sub-pixels, and blue sub-pixels. One sub-pixel is formed from one organic EL element.

[0092] Further, a plurality of terminals (not shown) for electrically connecting to the external driving circuit are disposed in the peripheral region 20.

[0093] 1.2 Macroable Structure of Organic EL Display Panel 100

[0094] figure 2 It is a partial cross-sectional view showing the laminated structure of the outer p...

no. 2 approach ＞

[0213] In the first embodiment, the resin material of the second sealing layer 1082 stops the wetting spread of the wetting spread show in the inner side of the inner peripheral portion of the circumferential groove 1022. (Refer to the reference) figure 2 ), Depending on the change in the temperature and the like, the slight change of the ink concentration, the viscosity of the type of ink material, etc., such as Figure 9 As shown, there may be a case where the peripheral portion of the second sealing layer 1082 enters the circumferential groove 1022. However, since the outer insulating layer 1021 functions as a dam, the peripheral portion of the second sealing layer 1082 does not cross the end surface of the inside of the outer insulating layer 1021 and extends to the outer side (flat portion of the outer insulating layer 1021). ).

[0214] In addition, in Figure 9 In the thickness direction, the magnification is exaggerated, but in practice, the thickness of the sealing layer 10...

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Abstract

The invention provides a self-luminous display panel which has excellent sealing performance and does not generate image noise at the periphery of an image display area. The self-luminous display panel includes an insulating resin layer disposed on a lower substrate, a plurality of self-luminous elements disposed in an image display region of the insulating resin layer, a sealing portion disposed above the plurality of self-luminous elements, and a second substrate disposed on the sealing portion. The insulating resin layer is divided into an inner resin layer and an outer resin layer by a circumferential groove surrounding the image display area, and the sealing portion is formed such that a second sealing layer formed of a resin material is interposed between a first sealing layer formed of an inorganic material and a third sealing layer formed of an inorganic material. The CF substrate is formed so that the second sealing layer does not exist, the first sealing layer and the third sealing layer are directly laminated, the CF substrate is adhered to the sealing part through a peripheral sealing layer disposed on the inner side of the peripheral edge part of the CF substrate and a bonding layer located within the range surrounded by the spacer, and at least a part of the peripheral sealing layer is located above the outer resin layer. In a plan view, an inner end portion of the peripheral seal layer is further outward than an inner peripheral edge portion of the circumferential groove.

Description

Technical field [0001] The present invention relates to a self-emitting display panel having a plurality of organic electroluminescence (EL) elements, and a method of manufacturing the same, and more particularly to sealing techniques for suppressing penetration of moisture present in the external environment. Background technique [0002] Conventionally, an organic EL display panel including a plurality of organic EL components is known. The organic EL element has a multilayer structure obtained by laminating the film of various materials, and at least a pixel electrode, a common electrode, and a shared electrode and a shared electrode and by they covering a TFT (thin film transistor: Thinfilm Transistor) substrate covered by a flat insulating layer. Organic light-emitting layer. As needed, a hole injection layer, a hole transport layer, an electron injection layer, an electron transport layer, or the like are provided between the pixel electrode and the organic light-emitting l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/52H01L51/56H01L27/32
CPCH10K59/38H10K59/12H10K50/844H10K59/1201H10K71/00H10K59/124H10K50/8428H10K50/8426H10K2102/351
Inventor 冲川昌史原田健史
Owner JOLED INC
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