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Dashboard dial display for a motor vehicle has a light guide device behind a partially transparent display surface with limited areas of brightness enhancement film on the inner surface of the light guide to improve light yield?keyword=Dashboard dial display for a motor vehicle has a light guide device behind a partially transparent display surface with limited areas of brightness enhancement film on the inner surface of the light guide to improve light yield?keyword=Dashboard dial display for a motor vehicle has a light guide device behind a partially transparent display surface with limited areas of brightness enhancement film on the inner surface of the light guide to improve light yield?keyword=Dashboard dial display for a motor vehicle has a light guide device behind a partially transparent display surface with limited areas of brightness enhancement film on the inner surface of the light guide to improve light yield 专利,更快更准确