Micro light-emitting element display device and manufacturing method thereof
A technology of light-emitting elements and display devices, which is applied in the direction of electrical elements, semiconductor devices, electric solid-state devices, etc., to achieve the effects of improving operational stability, good display quality, and good luminous efficiency
Active Publication Date: 2022-01-04
PLAYNITRIDE DISPLAY CO LTD
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Problems solved by technology
However, in terms of the transfer accuracy of the current mass transfer technology, there is still a problem of yield when it is applied to the production of ultra-high definition (Ultra High Definition, UHD) display devices
Even if the epitaxial structure is directly fabricated on the circuit substrate of the display device without using mass transfer technology, the formed micro light-emitting elements still have the problem of luminous efficiency
Method used
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[0074] Reference will now be made in detail to the exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used in the drawings and description to refer to the same or like parts.
[0075] Figure 1A to Figure 1H It is a schematic cross-sectional view of the manufacturing process of the micro light-emitting element display device according to the first embodiment of the present invention. figure 2 yes Figure 1H The top view schematic diagram of the pads and the shading pattern. First, please refer to Figure 1H , the micro-light emitting device display device 1 includes a circuit substrate 50 , a plurality of epitaxial structures 110P and a plurality of pads 120 . A plurality of epitaxial structures 110P are dispersedly disposed on the circuit substrate 50 , and a plurality of pads 120 are disposed between the epitaxial structures 110P and the circuit substrate 50...
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The present invention provides a micro-light-emitting element display device and a manufacturing method thereof. The micro-light-emitting element display device includes a circuit substrate, a plurality of epitaxial structures, a plurality of pads, and a plurality of light-shielding patterns. A plurality of epitaxial structures are dispersed and arranged on the circuit substrate. A plurality of pads are disposed between the plurality of epitaxial structures and the circuit substrate. The plurality of epitaxial structures are respectively electrically connected to the circuit substrate through a plurality of pads. A plurality of light-shielding patterns and a plurality of pads are alternately arranged on the circuit substrate, and each light-shielding pattern is connected between two adjacent pads and is suitable for blocking light penetration of 150nm-400nm wavelength.
Description
technical field [0001] The invention relates to a display device and a manufacturing method thereof, in particular to a micro light-emitting element display device and a manufacturing method thereof. Background technique [0002] In recent years, under the condition that the manufacturing cost of Organic light-emitting diode (OLED) display panels is relatively high and its service life cannot compete with the current mainstream displays, Micro LED Displays have gradually Attract the investment attention of major technology companies. In addition to the advantages of low energy consumption and long service life of materials, micro-LED display devices also have excellent optical performance, such as high color saturation, fast response speed and high contrast. [0003] At present, in the manufacturing process of micro-light-emitting element display devices, mass transfer technology plays a very important role. It transfers pre-fabricated and stored micro-light-emitting elemen...
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IPC IPC(8): H01L27/15H01L23/552H01L33/48H01L33/62
CPCH01L27/156H01L23/552H01L33/62H01L33/48H01L2933/0033H01L2933/0066
Inventor 杨翔甯吴志凌苏义闵吴柏威
Owner PLAYNITRIDE DISPLAY CO LTD