In particular, since the shield pattern SP is in electrical contact with the touch electrodes TE, the common voltage Vcom applied to the touch electrodes TE during the display driving periods is also applied to the shield pattern SP. That is, in a case in which the shield pattern SP is in electrical contact with the touch electrodes TE, the common voltage Vcom serves as a shield signal applied to the shield pattern SP.

As a result, the capacitance formed by the shield pattern SP and the touch electrodes TE may have a significantly larger value than the capacitance formed by the shield pattern SP and the data lines DL, thereby reducing the effect of the capacitance formed by the data lines DL on the touch electrodes TE.

In addition, the shield pattern SP may be in contact with the backlight shield pattern BLSP provided on the peripheral areas of the pixels, the gate electrodes GATE of thin-film transistors (TFTs) of the display panel 110, or an independent shield electrode provided in any space of the display panel 110.

FIG. 8 is a view illustrating another example structure of applying a shield signal to the shield pattern in the touch display device according to embodiments, in which the shield signal is applied to the shield pattern in contact with the backlight shield pattern.

Referring to FIG. 8, in the touch display device 100 according to embodiments, the shield pattern SP is disposed between the touch lines TL and the data lines DL while overlapping the data lines DL. In an area in which the shield pattern SP does not overlap the touch lines TL or the data lines DL, the shield pattern SP may be electrically connected to the touch electrodes TE via contact holes CH2 and CH3.