Patent ID: 11955041
Assignee: HIMAX TECHNOLOGIES LIMITED
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A control circuit for controlling a display panel, comprising:
a first driving circuit, connected to a first part of the display panel, configured to drive the first part in an operating stage, wherein the first driving circuit comprises:
a plurality of first output terminals, wherein the first driving circuit outputs a plurality of test signals to the plurality of first output terminals sequentially during different periods in a diagnosis stage; and
a plurality of first input terminals; and

a second driving circuit, connected to a second part of the display panel, configured to drive the second part in the operating stage, wherein the second driving circuit comprises:
a plurality of second input terminals, connected to the plurality of first output terminals in one-by-one manner; and
a plurality of second output terminals, connected to the plurality of first input terminals in one-by-one manner,

wherein the second driving circuit receives the plurality of test signals through the plurality of second input terminals in the diagnosis stage, and outputs a plurality of response signals to the plurality of second output terminals sequentially during the different periods in the diagnosis stage in response to the plurality of test signals, and
wherein the first driving circuit receives the plurality of response signals through the plurality of first input terminals in the diagnosis stage, and judges a connecting status of the first driving circuit and the second driving circuit according to the plurality of response signals.