Organic light emitting display device and method of manufacturing the same

Organic light emitting display device and method of manufacturing the same

  • CN 105,280,670 B
  • Filed: 12/24/2014
  • Issued: 06/23/2020
  • Est. Priority Date: 05/30/2014
  • Status: Active Grant
First Claim
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1. An Organic Light Emitting Display (OLED) device, comprising:

  • an array substrate included in a display panel, wherein the display panel includes a non-display area and an active area on which a plurality of sub-pixels are formed, and the display panel does not have a bezel;

    a first light-shielding layer on the array substrate in the active region;

    an intermediate layer directly on the array substrate in the non-display region;

    an active layer provided on the first light-shielding layer in the active region;

    an insulating layer disposed to cover the intermediate layer;

    a gate insulator disposed on the active layer in the active region and on the insulating layer in the non-display region;

    a gate electrode disposed on the gate insulator in the active region and a pad disposed on the gate insulator in the non-display region, the gate electrode and the pad being formed of the same metal material;

    an interlayer dielectric disposed on the gate electrode and the pad;

    a source electrode and a drain electrode connected to the active layer through an interlayer dielectric in the active region;

    a source/drain metal layer directly connected to the pad through an interlayer dielectric in the non-display region, the source/drain metal layer being formed of the same material as the source electrode and the drain electrode;

    a passivation layer disposed to cover the active region and the non-display region;

    an anode electrode connected to the drain electrode through the passivation layer in the active region;

    a light emitting layer disposed on the anode electrode;

    a cathode electrode disposed on the light emitting layer;

    a transparent conductive layer directly connected to the source/drain electrode metal layer through the passivation layer in the non-display region;

    wherein the pad, the source/drain metal layer, and the transparent conductive layer are sequentially stacked to form a plurality of link lines, and the source/drain metal layer is directly in contact with the pad and the transparent conductive layer,wherein the plurality of link lines are completely separated from the intermediate layer by the insulating layer, and each of the plurality of link lines is connected to a signal line of a plurality of sub-pixels such that a driving signal is supplied from a driving circuit unit to the signal line of each sub-pixel among the plurality of sub-pixels,wherein the intermediate layer under the plurality of link lines is configured to reduce visibility of the plurality of link lines such that incident light on the intermediate layer is uniformly reflected or absorbed by the plurality of link lines,wherein the intermediate layer is not connected to the signal lines of the plurality of sub-pixels,wherein the transparent conductive layer comprises ITO,wherein the intermediate layer comprises a buffer layer, anWherein the buffer layer comprises a plurality of separate portions, and each portion overlaps with all of the space between two adjacent link lines.

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