Abstract: The present disclosure provides a flexible printed circuit board and a display apparatus. The flexible printed circuit board includes a plurality of bonding pins, where the plurality of bonding pins are configured to be bonded with a display panel, and the plurality of bonding pins include impedance test pins; and an antenna coil, including two metal connecting wires and the two impedance test pins, where the metal connecting wires are electrically connected between the impedance test pins and a near field communication module; and when the plurality of bonding pins are bonded with the display panel, the two impedance test pins are electrically connected through a conducting wire in the display panel.

Abstract: A touch panel, comprising: a substrate, a plurality of touch electrodes and a plurality of traces disposed on the substrate. At least one trace is connected to at least one touch electrode, and comprises a first conducting wire and a second conducting wire. A trace insulating layer is provided between the first and second conducting wires. The second conducting wire is connected to the first conducting wire by at least one via on the trace insulating layer. First conducting wires of at least two adjacent traces both have at least one break point, so that a first short circuit point between the first conducting wire is isolated from a corresponding second conducting wire; or, second conducting wires of at least two adjacent traces both have at least one break point, so that a second short circuit point between the second conducting wire is isolated from a corresponding first conducting wire.

Abstract: A touch panel, comprising: a substrate, a plurality of touch electrodes and a plurality of traces disposed on the substrate. At least one trace is connected to at least one touch electrode, and comprises a first conducting wire and a second conducting wire. A trace insulating layer is provided between the first and second conducting wires. The second conducting wire is connected to the first conducting wire by at least one via on the trace insulating layer. First conducting wires of at least two adjacent traces both have at least one break point, so that a first short circuit point between the first conducting wire is isolated from a corresponding second conducting wire; or, second conducting wires of at least two adjacent traces both have at least one break point, so that a second short circuit point between the second conducting wire is isolated from a corresponding first conducting wire.

Abstract: The present application discloses a needle for repairing an alignment layer on a liquid crystal display substrate. The needle includes a needle tip; and a flexible material coating surrounding the needle tip.

Abstract: The present application discloses a needle for repairing an alignment layer on a liquid crystal display substrate. The needle includes a needle tip; and a flexible material coating surrounding the needle tip.

Abstract: The application discloses a solar cell component including at least two chip sets connected in series, wherein each chip set includes a plurality of chip units connected in parallel and a bypass diode connected in parallel with the chip units, each chip unit includes one or more photovoltaic chips connected in series, positive poles of the bypass diodes are connected with negative poles of the chip units, and negative poles of the bypass diodes are connected with positive poles of the chip units. The application further provides a solar panel with the solar cell component. The application not only can reduce the number of the bypass diodes, but also can improve economy of the product.