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Display panel and method for manufacturing the same

A display panel and pixel technology, applied in semiconductor/solid-state device manufacturing, electrical components, circuits, etc., can solve problems such as large surface resistance, sacrificial electrode layer material stability, power consumption, etc., and achieve effective electrode layer shunting Effect

Inactive Publication Date: 2007-11-28
KONINKLIJKE PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Alternatively or additionally very thin metal layers can be used, but they usually have a large sheet resistance
Thus, for such a display panel there is a contradiction between increasing the thickness of the electrode layer to reduce the resistance but sacrificing the material stability of the electrode layer, or reducing the thickness of the top electrode layer to enhance the transparency but producing a relatively high resistance, which has an adverse effect on the power consumption of devices using such panels

Method used

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  • Display panel and method for manufacturing the same
  • Display panel and method for manufacturing the same
  • Display panel and method for manufacturing the same

Examples

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Embodiment Construction

[0036] 1 is a schematic diagram of an electronic device 1 comprising a display panel 2 having display pixels 3 and a signal processor 4 for driving the display pixels 3 via contact lines C. FIG.

[0037] FIG. 2 shows a typical layer stack structure that a display pixel 3 has. It should be understood that the term "layer" herein may include a stack of two or more layers of material such that the stack of layers can perform the function of a single layer as shown in FIG. 2 . It should also be noted that the layer stack in FIG. 2 may include further layers, such as one or more insulating layers.

[0038] Display pixels 3 are formed on a substrate 5, which may be made of glass or silicon. For a display panel of the bottom emission type, the substrate 5 should be transparent to the light of the display pixels 3 . Of course, this should also be considered for the transparent display panel.

[0039] For a top-emitting display panel 2 , a reflective layer 6 is provided on a substra...

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PUM

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Abstract

The invention relates to a display panel (2) comprising a plurality of display pixels (3) with at least one light emissive layer (10) and at least one electrode layer (7) deposited on or over said light emissive layer. A first display pixel (3A) is determined by a first barrier structure (20) and a second display pixel (3B), adjacent to said first display pixel, is determined by a second barrier structure (21). The first barrier structure and second barrier structure are separated by an electrically conductive structure (22) in electrical contact with the electrode layer. Accordingly, space is available between the barrier structures (20,21) for electrical shunting of the electrode layer (7). The invention further relates to an electric device comprising such a display panel and a method for manufacturing a display panel.

Description

technical field [0001] The invention relates to a display panel comprising a plurality of display pixels having at least one light-emitting layer and at least one electrode layer deposited on or over said light-emitting layer. The invention also relates to a method of manufacturing a display panel. Background technique [0002] Display panels using display pixels including light emitting elements formed on a substrate are becoming more widespread. These light emitting elements may be light emitting diodes (LEDs) incorporated or formed in display pixels arranged in a matrix of rows and columns. Light-emitting or electroluminescent materials used in LEDs are adapted to generate light when electrical current is delivered through them, such as special polymer (PLED) or small molecule organic (SMOLED) materials. PLED and SMOLED display panels open up new paths for high-quality displays. The advantages of these display panels are self-emission technology, high brightness, large ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B33/12H01L51/52
CPCH01L2251/5315H01L27/3246H01L27/3279H01L51/5228H10K59/1315H10K59/122H10K2102/3026H10K59/87H10K59/80522H01L33/04H10K50/824
Inventor H·利夫卡M·W·G·庞杰N·D·杨N·C·范德瓦尔特
Owner KONINKLIJKE PHILIPS ELECTRONICS NV