Patent ID: 11860204
Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 4:
5. A display device, comprising:
a display panel;
a circuit board comprising a first detection part and a second detection part; and
a chip-on-film electrically connected to the display panel and the circuit board;
wherein the chip-on-film comprises a plurality of pins, the plurality of pins comprise a plurality of conducting pins and test pins, at least one conducting pin is electrically connected to the first detection part, the test pins are disposed on one side of the conducting pins, the test pins are electrically connected to the second detection part, and the conducting pins electrically connected to the first detection part are connected to the test pins by test wires;
wherein the test wires comprise a first sub-test wire, the first sub-test wire is disposed on the chip-on-film, the test pins comprise a first sub-test pin, and the first sub-test wire is connected to one conducting pin and the first sub-test pin;
wherein the pins comprise a wire and a ground wire, the wire is disposed on one side of a first pin on the chip-on-film, the ground wire is disposed on one side of a last pin on the chip-on-film, the wire is insulated from the pins, and the wire is grounded;
wherein the first sub-test pin is electrically connected to the conducting pins by the first sub-test wire, the conducting pins electrically connected to the first sub-test pin is disposed away from the first sub-test pin, the first sub-test wire is disposed on the side near the circuit board.