Touch display device and alignment method thereof

Abstract

A touch display device includes a first substrate, a second substrate, a touch electrode layer and a flexible circuit board. The first substrate has a first alignment pattern. The second substrate is arranged opposite to the first substrate, wherein the second substrate has a light-shielding area. The touch electrode layer is disposed on and contacts the second substrate, wherein the touch electrode layer has a second alignment pattern, and the second alignment pattern is disposed on the light shielding area. The flexible circuit board is arranged on the touch electrode layer, wherein the flexible circuit board has a third alignment pattern and a fourth alignment pattern, the third alignment pattern is arranged on the second alignment pattern, and the fourth alignment pattern The pattern does not overlap with the second substrate and the touch electrode layer and is separated by a distance between 0mm and 5mm, wherein an alignment is achieved when the flexible circuit board and the touch electrode layer are bonded.

Description

technical field [0001] The present invention relates to a technology of a touch display device, in particular to a touch display device suitable for a transmissive image sensor. Background technique [0002] With the advancement of technology, touch modules tend to be gradually integrated into personal mobile devices, such as personal digital assistants (personal digital assistants, PDAs), smart phones (Smart Phones), and satellite navigation devices. It is convenient to operate by controlling the screen of this mobile device. [0003] figure 1 It is a cross-sectional schematic diagram of a conventional packaging alignment device for a touch display panel. The conventional package alignment device 10 includes a thin film transistor array (Thin Film Transistor Array, TFT Array) 110, a color filter (Color Filter, CF) 120, a touch electrode layer (Touch Electrode Layer) 130 and a flexible circuit Board (Flexible Printed Circuit, FPC) 140 . The color filter 120 is disposed o...

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Problems solved by technology

[0005] However, the conventional package alignment device 10 is not suitable for when the image sensor is located on another plane of the thin film transistor array 110 that does not have the touch electrode layer 130, the conventional package alignment device 10 will not be able to provide the image sensor to capture the first Alignment information of the alignment pattern 132 and the second alignment pattern 142

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