Patent ID: 11868013
Assignee: HKC CORPORATION LIMITED
Field: Semiconductors (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 6:
7. A method of manufacturing a display panel, comprising:
providing a plurality of chip on films, wherein each of the plurality of chip on films comprises a flexible film and a driver chip; the flexible film comprises (M+N) outer lead bonding (OLB) wires; the M OLB lines are electrically connected to pins of the driver chip to form driver lines; the N OLB lines are not electrically connected to the pins of the driver chip and serve as nominal lines;
providing a display substrate, wherein the display substrate comprises a plurality of array units, and each of the plurality of array units comprises a plurality of data lines and a plurality of pads; and
bonding, by a bonding machine, the plurality of chip on films to the display substrate, wherein the plurality of chip on films are arranged in one-to-one correspondence with the plurality of array units;
the plurality of array units comprise a plurality of first array units, a second array unit, and a third array unit;
each of the first array units comprises M data lines and (M+N) pads; the M pads are connected to the M data lines respectively to form first driver pads, the N pads are not connected to any data line and serve as first nominal pads;
the second array unit comprises (M−X) data lines and (M+N) pads; (M−X) pads of the second array unit are connected to the (M−X) data lines respectively to form second driver pads, the N pads of the second array unit are not connected to any data line and serve as first nominal pads; the X pads of the second array unit are disposed at left of the (M−X) second driver pads, not connected to any data line, and serve as second nominal pads;
the third array unit comprises (M−Y) data lines and (M+N) pads; (M−Y) pads of the third array unit are connected to the (M−X) data lines respectively to form third driver pads, the N pads of the third array unit are not connected to any data line and serve as first nominal pads; the Y pads of the third array unit are disposed at right of the (M−Y) third driver pads, not connected to any data line, and serve as third nominal pads;
a first chip on film is arranged in correspondence with each of the plurality of first array units, M driver lines of the first chip on film are arranged in one-to-one correspondence with and connected to the M first driver pads of the first array unit, N nominal lines of the first chip on film are arranged in one-to-one correspondence with and connected to the N first nominal pads;
a second chip on film is arranged in correspondence with the second array unit, M driver lines of the second chip on film are arranged in one-to-one correspondence with and connected to the X second nominal pads and the (M−X) second driver pads of the second array unit, N nominal lines of the second chip on film are arranged in one-to-one correspondence with and connected to the N first nominal pads of the second array unit; and
a third chip on film is arranged in correspondence with the third array unit, M driver lines of the third chip on film are arranged in one-to-one correspondence with and connected to the (M−Y) third nominal pads and the Y third nominal pads of the third array unit, N nominal lines of the third chip on film are arranged in one-to-one correspondence with and connected to the N first nominal pads of the third array unit.