Touch pixel structure, touch pixel array substrate and touch display panel

A touch display panel comprising:

• a first substrate;
• a plurality of data lines, a plurality of read-out lines, and a plurality of voltage-shielding lines, the data lines, the read-out lines, and the voltage-shielding lines being substantially disposed in parallel on the first substrate, wherein each of the read-out lines is located between two of the data lines adjacent to the each of the read-out lines, each of the voltage-shielding lines is located between one of the read-out lines and one of the data lines, and two sides of each of the read-out lines are adjacent to two of the voltage-shielding lines;
• a plurality of scan lines and a plurality of signal-control lines, the scan lines and the signal-control lines being located on the first substrate and respectively intersecting the data lines, the read-out lines, and the voltage-shielding lines;
• a plurality of active devices located on the first substrate and electrically connected to the scan lines and the data lines correspondingly;
• a plurality of pixel electrodes located on the first substrate and electrically connected to the active devices correspondingly;
• a plurality of photo-sensing units located on the first substrate and electrically connected to the scan lines, the signal-control lines, and the read-out lines correspondingly;
• a second substrate disposed opposite to the first substrate;
• and
• a display medium disposed between the first substrate and the second substrate.

A touch pixel structure for a touch display panel including a first substrate, the touch pixel structure comprising:

• a first data line, a second data line, a read-out line, a first voltage-shielding line, and a second voltage-shielding line, the first data line, the second data line, the read-out line, the first voltage-shielding line, and the second voltage-shielding line being substantially disposed in parallel on the first substrate, wherein the read-out line is located between the first data line and the second data line adjacent to the read-out line, the first voltage-shielding line and the second voltage-shielding line are respectively located between the read-out line and the first data line and between the read-out line and the second data line, and two sides of the read-out line are adjacent to the first voltage-shielding line and the second voltage-shielding line;
• a scan line and a signal-control line, the scan line and the signal-control line being located on the first substrate and respectively intersecting the first data line, the second data line, the read-out line, the first voltage-shielding line, and the second voltage-shielding line;
• a first active device and a second active device both located on the first substrate and electrically connected to the scan line, the first data line, and the second data line correspondingly;
• a first pixel electrode and a second pixel electrode both located on the first substrate and electrically connected to the first active device and the second active device correspondingly;
• and
• a photo-sensing unit located on the first substrate and electrically connected to the scan line, the signal-control line, and the read-out line correspondingly.