Light emitting device with LED stack for display and display apparatus having the same

A light-emitting device and display technology, applied in the direction of electric solid-state devices, semiconductor devices, electrical components, etc., can solve the problems of reducing the brightness of sub-pixels, difficult to perform detection, small size of micro-LEDs, etc., to reduce the time of the installation process and simplify the structure , The effect of improving manufacturing productivity

Pending Publication Date: 2020-01-14
SEOUL VIOSYS CO LTD
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  • Abstract
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Problems solved by technology

However, reducing the light-emitting area of ​​each subpixel reduces the brightness of the subpixel
[0007] In addition, micro LEDs are typically of very small size, with a surface area of ​​about 10,000 square microns or less, therefore, there are various problems due to this small size
For example, probing may be difficult to perform during measurements of electrical or optical properties of LEDs

Method used

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  • Light emitting device with LED stack for display and display apparatus having the same
  • Light emitting device with LED stack for display and display apparatus having the same
  • Light emitting device with LED stack for display and display apparatus having the same

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Embodiment Construction

[0056] In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of various exemplary embodiments or implementations of the invention. As used herein, "example" and "implementation" are interchangeable words that are non-limiting examples of apparatuses or methods that employ one or more of the inventive concepts disclosed herein. It is evident, however, that the various exemplary embodiments may be practiced without these specific details, or with one or more equivalent arrangements. In other instances, well-known structures and devices are shown in block diagram form in order to avoid unnecessarily obscuring the various exemplary embodiments. Furthermore, the various exemplary embodiments may differ, but are not necessarily exclusive. For example, the specific shapes, configurations, and characteristics of an exemplary embodiment may be used or implemented in another exemplary embodiment w...

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Abstract

A light emitting device for a display including a first LED sub-unit, a second LED sub-unit disposed on the first LED sub-unit, a third LED sub-unit disposed on the second LED sub-unit, electrode padsdisposed under the first LED sub-unit, each of the electrode pads being electrically connected to at least one of the first, second, and third LED sub-units, and lead electrodes electrically connected to the electrode pads and extending outwardly from the first LED sub-unit.

Description

technical field [0001] Exemplary embodiments of the present invention relate to a light emitting device for a display and a display device having the same, and more particularly, to a micro light emitting device having a stacked structure and a display device having the same. Background technique [0002] As inorganic light sources, light emitting diodes (LEDs) have been used in various technical fields such as displays, car lights, general lighting, and the like. With the advantages of long life, low power consumption and high response speed, light-emitting diodes have rapidly replaced existing light sources. [0003] Light emitting diodes have been mainly used as backlight sources in display devices. Recently, however, micro LED displays capable of realizing images directly using light emitting diodes have been developed. [0004] Generally, a display device realizes various colors by using a mixed color of blue light, green light, and red light. The display device incl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L25/075H01L27/15
CPCH01L25/0756H01L33/62H01L2933/0066H01L25/0753H01L33/382H01L27/156H01L33/405H01L33/42H01L2933/005H01L33/52H01L33/30H01L33/32H01L2933/0016H01L33/0075H01L33/0093
Inventor 蔡钟炫李豪埈张成逵
Owner SEOUL VIOSYS CO LTD
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