Touch display device and touch display

Abstract

The invention provides a touch display device and a touch display. The touch display device comprises a touch electrode and a backlight module opposite to the touch electrode. The backlight module comprises a backlight film material and a backlight iron frame for supporting the backlight film material. The backlight film material is arranged between the touch electrode and the backlight iron frame. The touch control electrodes and the backlight iron frame are electrically connected with a touch control signal end together. The touch control signal end is used for transmitting touch control signals to the touch control electrodes and the backlight iron frame. The touch electrodes and the backlight iron frame receive the same touch signals, so that the capacitive coupling effect between thetouch electrodes and the touch iron frame is eliminated. The touch sensitivity is improved. The vibration noise of the backlight film material is eliminated. The touch display provided by the invention comprises the touch display device, so that the touch display has the advantages of the touch display device.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a touch display device and a touch display. Background technique [0002] An in-cell touch display device (In Cell Touch Display) integrates touch electrodes into a display panel, and realizes the touch function and display function of the display panel through time-sharing driving. Since the in-cell touch technology does not need to separately manufacture a touch function layer after the display panel manufacturing process, the manufacturing process of the touch display device is simplified, and it is beneficial to realize the thinner and lighter design of the display device. Therefore, the in-cell touch design has become a mainstream design solution for touch display devices. [0003] The in-cell touch technology is widely used in liquid crystal display devices, but there are also many problems, one of the most serious problems is the parasitic capacitance between the...

AI Technical Summary

Problems solved by technology

Due to the capacitive coupling effect of the virtual capacitor C, the periodic touch signal received on the touch electrode 11 will have the effect of charging and discharging the virtual capacitor C, thereby affecting the charging and discharging time of the touch signal to the touch electrode 11, And then affect the touch effect

In addition, the periodic charge and discharge of the touch signal to the virtual capacitor C will cause the vibration of the backlight film layer 13 located in the virtual capacitor C, thereby generating high-frequency noise and affecting the use effect of the product.

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