Patent ID: 11861118
Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. A touch display panel, comprising a display region and a fan-shaped wiring region positioned below the display region, wherein the touch display panel comprises:
a base substrate;
a touch electrode layer formed on the base substrate and comprising a plurality of touch sensing blocks arranged in an array; and
a plurality of touch signal lines, wherein a first end of each of the touch signal lines is electrically connected to a corresponding touch sensing block, a second end of the touch signal lines extends to the fan-shaped wiring region and is electrically connected to a touch integrated circuit located in the fan-shaped wiring region, and the touch integrated circuit is arranged along a column direction;
wherein the touch signal lines comprise a plurality of first type touch signal lines and a plurality of second type touch signal lines, and a distance between a first end of each of the first type touch signal lines and the touch integrated circuit is less than a distance between a first end of each of the second type touch signal lines and the touch integrated circuit;
each of the first type touch signal lines includes a single sub-signal line, and each of the second type touch signal lines includes at least two sub-signal lines;
a number of the touch sensing blocks arranged along the row direction is N, a number of the first type touch signal lines corresponding to the touch sensing blocks is P, and a number of the second type touch signal lines corresponding to the touch sensing blocks is Q, wherein N, P, and Q are all positive integers, and N=P+Q;
each row of the touch signal lines comprises a blind region in the column direction, a blind region width of the blind region is W, and a number of the touch signal lines in one blind region is t, wherein t is a positive integer and t≤N;
the touch display panel comprises a pixel array layer, the pixel array layer comprises a plurality of sub-pixel units arranged in an array; and
a vertical projection of the touch sensing blocks projected on the pixel array layer covers multiple ones of the sub-pixel units, the second type touch signal lines are grid metal patterns, and a vertical projection of each of the second type touch signal lines projected on the pixel array layer is located between two neighboring rows of the sub-pixel units and located at one side of an area of the touch sensing blocks.