Display device and method for manufacturing same
A technology for display devices and contact holes, which is applied in the direction of diodes, organic semiconductor devices, semiconductor devices, etc., can solve problems such as reducing process efficiency, achieve the effects of reducing mask processes, preventing short circuits, and improving process efficiency
Pending Publication Date: 2021-07-16
SAMSUNG DISPLAY CO LTD
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- Abstract
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- Claims
- Application Information
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Problems solved by technology
Masking process can be used for patterning wiring or insulating film, etc. However, every additional masking process may reduce process efficiency
Method used
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[0046] The advantages, features and methods for achieving them of the present invention will be combined with the attached Figure 1 This will become clear from the examples described in detail later. However, the present invention is not limited to the embodiments disclosed below, and can be implemented in various forms different from each other. It is provided by knowledgeable persons to fully inform the scope of the invention, and the present invention is defined only by the scope of the appended claims.
[0047] When an element or layer is referred to as being "on" another element or layer, it includes all cases where the other element is immediately above or intervenes the other layer or other element. The same reference numerals refer to the same constituent elements throughout the specification. The shapes, sizes, ratios, angles, numbers, etc. disclosed in the drawings for explaining the embodiments are merely examples, and thus the present invention is not limited to...
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Abstract
The invention provides a display device and a method for manufacturing the same. The display device includes: a lower metal layer; a buffer layer; a first semiconductor layer; a gate insulating film; a first gate electrode; an interlayer insulating film disposed on the first gate electrode and covering the first gate electrode; a via layer disposed on the interlayer insulating film; a pixel electrode disposed on the via layer and connected to a portion of the first semiconductor layer; a light emitting layer disposed on the pixel electrode; and a common electrode disposed on the light emitting layer, the pixel electrode being connected to the lower metal layer through a first contact hole penetrating through the buffer layer and the interlayer insulating film and a first through hole penetrating through the via layer, and being connected to a part of the first semiconductor layer through a second contact hole penetrating through the interlayer insulating film and a second through hole penetrating through the via layer, the interlayer insulating film includes a first upper surface that does not overlap the via layer at the first via, and the pixel electrode is in contact with an inner circumferential surface of the first via, the first upper surface of the interlayer insulating film, and an inner circumferential surface of the first contact hole.
Description
technical field [0001] The present invention relates to a display device and a manufacturing method thereof. Background technique [0002] With the development of multimedia, the importance of display devices is increasing. Correspondingly, various display devices such as liquid crystal display (Liquid Crystal Display, LCD) and organic light emitting display (Organic Light Emitting Display, OLED) are used. [0003] Among them, the organic light-emitting display device, as a self-luminous self-luminous element, has the advantages of fast response rate and large luminous efficiency, brightness and viewing angle. An organic light emitting display device may include a plurality of pixels on a single panel. Each pixel may include an organic light emitting diode disposed on a substrate on which a thin film transistor is formed. [0004] The display device as described above can be manufactured through a plurality of mask processes. A masking process may be used for patterning ...
Claims
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IPC IPC(8): H01L27/32H10K99/00
CPCH10K59/353H10K59/123H10K59/1213H10K59/1315H10K59/122H10K59/1201H10K71/00H10K59/8792H10K59/35H10K59/38H10K59/131H01L27/1214H10K71/231H10K2102/103
Inventor 赵炫珉金湘甲金泰圣
Owner SAMSUNG DISPLAY CO LTD