CIRCUIT BOARD, LIGHT-EMITTING SUBSTRATE, BACKLIGHT MODULE, DISPLAY PANEL AND DISPLAY DEVICE
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United States of America Patent
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Issued Date -
Oct 24, 2024
app pub date -
Apr 21, 2022
filing date -
Apr 21, 2022
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Abstract
A circuit board includes a substrate and a stress neutral layer disposed on a side of the substrate. The stress neutral layer includes one or more first metal layers and one or more second metal layers. The one or more second metal layers and the one or more first metal layers are stacked. At least one of the one or more first metal layers is made of a material for generating a tensile stress, and at least one of the one or more second metal layers is made of a material for generating a compressive stress.
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