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touch display device

A technology for touch display devices and display panels, which is applied in the fields of optics, instruments, and electrical digital data processing, etc., and can solve problems such as unsuitable for lightness, thinness and shortness, and difficulty in reducing the thickness of touch display devices.

Active Publication Date: 2018-06-26
ASUSTEK COMPUTER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned touch display devices all need to be equipped with an additional layer of quarter-wave plate, which makes it difficult to reduce the thickness of the touch display device, which is not in line with the current trend of thin, light and small electronic products.

Method used

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Embodiment Construction

[0029] Figure 3A Shown is a cross-sectional view of a touch display device according to an embodiment of the present invention. Figure 3B shown as Figure 3A Exploded view of the touch display device. Figure 3C shown as Figure 3A A schematic top view of the angle between the fast axis and the penetration axis of the touch display device.

[0030] Please also refer to Figure 3A to Figure 3C , the touch display device 300 of this embodiment is suitable for the user to view through a polarizing element (not shown), wherein the polarizing element may be polarized sunglasses. The touch display device 300 of this embodiment includes a backlight module 340 , a display panel 310 and a touch panel 330 .

[0031] In this embodiment, the display panel 310 is a liquid crystal display panel. The display panel 310 includes an upper polarizer 312 , a liquid crystal layer 314 and a lower polarizer 316 . The liquid crystal layer 314 is disposed between the upper polarizer 312 and t...

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PUM

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Abstract

A touch display device is provided. The touch display device includes a display panel and a touch panel. The display panel displays a display image with a linear-polarized state, and includes an upper polarizer with a transmission axis. The touch panel is disposed on the display panel. The touch panel includes a substrate with a fast axis. The display image is converted from the linear-polarized state to the circular-polarized state when the passing through the fast axis. A touch display device having a plurality of substrates is provided. Since the substrate having the fast axis replaces the original substrate of the touch panel without adding an additional substrate, the touch display device is thinner.

Description

technical field [0001] The present invention relates to a touch display device, and in particular to a touch display device capable of allowing users to view through a polarizing element. Background technique [0002] With the development of science and technology, electronic products have been widely used in daily life. In order to achieve more convenient portability, smaller size and more user-friendly operation, many electronic products have changed from traditional input devices such as keyboards or mice to touch input. For example, a mobile phone or a tablet computer among mobile electronic products is a touch display device in which a touch panel and a display panel are combined. [0003] When driving or exercising, in order to reduce the impact of external light on the eyes, the user of the touch display device may wear polarized sunglasses to watch the display on the screen. However, since the polarization direction of the image light may be perpendicular to the po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041G02F1/1333
Inventor 曾庆安黄永铭郑绵绵
Owner ASUSTEK COMPUTER INC