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A display and conductive structure technology, applied in the direction of instruments, semiconductor devices, electric solid devices, etc., can solve the problems of different deformation, uneven current distribution, different shrinkage between the embossed edge and the center, etc.
Active Publication Date: 2020-12-08
AU OPTRONICS CORP
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Problems solved by technology
[0003] However, there may be a problem of uneven imprint depth in the above-mentioned transposition technique
Taking the polydimethylsiloxane transfer head as an example, shrinkage may occur during the molding process, so it is easy to cause the shrinkage of the edge and the center of the embossing to be different, resulting in a different amount of deformation
Therefore, after the micro light emitting diode element is installed on the substrate, the current distribution may be uneven, and then the brightness of the display may be uneven (mura), resulting in a decrease in display quality
Method used
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[0064] The present invention will be described more fully with reference to the drawings of the present embodiment. However, the present invention can also be embodied in various forms and should not be limited to the embodiments described herein. The thicknesses of layers and regions in the drawings may be exaggerated for clarity. The same or similar reference numerals denote the same or similar elements, and the following paragraphs will not repeat them one by one.
[0065] Figure 1A to Figure 1B It is a partial perspective schematic diagram of a manufacturing method of a display according to the first embodiment of the present invention. Figure 1C to Figure 1H It is a partial cross-sectional schematic diagram of a manufacturing method of a display according to the first embodiment of the present invention. in particular, Figure 1B yes Figure 1A Enlarged view of middle block Z5, Figure 1G yes Figure 1F A magnified view of the middle region R1, Figure 1H yes F...
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The invention discloses a display, which includes an array substrate, a first pixel unit and a second pixel unit. The array substrate has multiple blocks. At least one block includes a plurality of driving elements, a plurality of first conductive structures and a plurality of second conductive structures on the substrate. The thickness between the upper surface of the first conductive structure and the upper surface of the substrate is different from the thickness between the upper surface of the second conductive structure and the upper surface of the substrate. The first pixel unit includes at least two sub-pixels of different colors. Each sub-pixel has a first micro light emitting diode element. The first micro light emitting diode element is located on the first conductive structure and is electrically connected to the driving element. The second pixel unit includes at least two sub-pixels of different colors. Each sub-pixel has a second micro LED element. The second micro light emitting diode element is located on the second conductive structure and is electrically connected to the driving element.
Description
technical field [0001] The present invention relates to a display, and in particular to a display related to micro light emitting diodes. Background technique [0002] In general micro-LED transposition technology, electrostatic chucks or polydimethylsiloxane (Polydimethylsiloxane; PDMS) transfer heads can be used to transpose micro-LEDs and mounted on the substrate. [0003] However, there may be a problem of uneven embossing depth in the above-mentioned transposition technique. Taking the polydimethylsiloxane transfer head as an example, shrinkage may occur during the molding process, so it is easy to cause the shrinkage of the edge and the center of the embossing to be different, resulting in a different deformation. Therefore, after the micro-LED elements are installed on the substrate, the current distribution may be uneven, and then the brightness of the display may be uneven (mura), resulting in a decrease in display quality. Contents of the invention [0004] Th...
Claims
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IPC IPC(8): G09F9/33H05K13/04H01L25/075
CPCG09F9/33H01L25/0753H05K13/046H01L2224/75H01L2224/83192H01L2224/95
Inventor 陈振彰刘品妙
Owner AU OPTRONICS CORP