DRIVE BOARD, LIQUID JET HEAD, AND LIQUID JET RECORDING DEVICE

To provide a drive board or the like capable of improving discharge performance of a liquid and reducing manufacturing cost.SOLUTION: This drive board according to an embodiment in the present disclosure is applied to a liquid jet head to output a driving signal to a jet part, and comprises: first a...

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Bibliographic Details
Main Author YOSHIDA KENSUKE
Format Patent
LanguageEnglish
Japanese
Published 31.01.2023
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Summary:To provide a drive board or the like capable of improving discharge performance of a liquid and reducing manufacturing cost.SOLUTION: This drive board according to an embodiment in the present disclosure is applied to a liquid jet head to output a driving signal to a jet part, and comprises: first and second wiring layers facing each other in a direction orthogonal to a board surface; one or a plurality of driving devices mounted on the first wiring layer to generate the driving signal; a first power supply wiring disposed on the first wiring layer to supply a driving power supply to the driving device; a differential track disposed in the first wiring layer to transmit a differential signal to the driving device; and a second power supply wiring disposed in the second wiring layer, electrically connected through a first through-hole to the first power supply wiring, and facing a first region in the differential track. A wiring width in the second power supply wiring is larger than that a track width in the first region in the differential track.SELECTED DRAWING: Figure 6 【課題】液体の吐出性能を向上させつつ、製造コストを低減することが可能な駆動基板等を提供する。【解決手段】本開示の一実施の形態に係る駆動基板は、液体噴射ヘッドに適用され、駆動信号を噴射部に対して出力する駆動基板であって、基板面と直交する方向に沿って互いに対向する第1配線層および第2配線層と、第1配線層に実装されており、駆動信号を生成する1または複数の駆動デバイスと、第1配線層に配置されており、駆動デバイスへ向けて駆動電源を供給するための配線である第1電源配線と、第1配線層に配置されており、駆動デバイスへ向けて差動信号を伝送するための線路である差動線路と、第2配線層に配置されており、第1スルーホールを介して第1電源配線と電気的に接続されていると共に、差動線路における第1領域と対向している第2電源配線と、を備えている。第2電源配線における配線幅が、差動線路における第1領域の線路幅よりも、大きくなっている。【選択図】図6
Bibliography:Application Number: JP20210118880