touch display device
A touch display device and touch sensing technology, applied in the fields of instruments, nonlinear optics, optics, etc., can solve the problems of thickness limitation, inability to roll-to-roll production, and low technical threshold.
Active Publication Date: 2021-08-03
INTERFACE TECH CHENGDU CO LTD +2
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Problems solved by technology
In a traditional touch display device, a circular polarizer consists of a linear polarizer and a quarter-wave plate. The linear polarizer is formed by stretching a low-cost polyvinyl alcohol (PVA) film to absorb iodine molecules, because The PVA film will shrink and lose its direction after being stretched, so it is necessary to attach a triacetate cellulose (TAC) film to the top and bottom of the online polarizing layer, and then use the pressure-sensitive adhesive to press the quarter-wave plate. This way can get Very good optical properties, but it cannot be produced roll-to-roll, the thickness is easily limited, the stress is too large and it cannot be bent freely, and the bending diameter is less than 10 millimeters (mm), so the technical threshold is low, and it is only limited to flat products
Method used
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[0065] Embodiments of the present invention will be further explained in conjunction with related figures below. Wherever possible, the same reference numerals have been used throughout the drawings and description to refer to the same or similar components. In the drawings, the shape and thickness may be exaggerated for the sake of simplification and convenient labeling. It should be understood that elements not particularly shown in the drawings or described in the specification are forms known to those skilled in the art. Those skilled in the art can make various changes and modifications according to the content of the present invention.
[0066] See below figure 1 , to introduce the first embodiment of the touch display device of the present invention. The touch display device includes a light emitting module 34 , a touch sensing module 36 , a circular polarizing layer 38 and a transparent cover 40 . The touch sensing module 36 and the circular polarizing layer 38 are...
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Abstract
The invention discloses a touch display device, which comprises a light emitting module, a touch sensing module, a circular polarizing layer and a transparent cover plate. The touch sensing module and the circular polarizing layer are stacked on each other to be disposed on the light emitting module, and the circular polarizing layer has a stacked layer of liquid crystal molecules. The transparent cover plate is arranged on the touch sensing module or the circular polarizing layer. The present invention utilizes liquid crystal molecules to form the circular polarizing layer, so as to avoid the use of a supporting substrate and any glue, thereby greatly reducing the overall thickness to facilitate bending.
Description
technical field [0001] The present invention relates to a touch display device, and in particular to a bendable touch display device. Background technique [0002] In recent years, touch panels (Touch Panel) have been widely used in various electronic products, such as: Global Positioning System (GPS), Personal Digital Assistant (PDA), mobile phone (cellular phone) and handheld computer (Hand-held PC), etc., to replace traditional input devices (such as: keyboard and mouse, etc.). This significant change in design not only improves the human-machine interface affinity of these electronic devices, but also frees up more space for installing larger display panels by omitting traditional input devices, which is convenient for users to browse data . In a traditional touch display device, a circular polarizer consists of a linear polarizer and a quarter-wave plate. The linear polarizer is formed by stretching a low-cost polyvinyl alcohol (PVA) film to absorb iodine molecules, b...
Claims
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IPC IPC(8): G02F1/1335G02F1/1333
CPCG02F1/13338G02F1/133528
Inventor 蔡缘蓁曾钧麟
Owner INTERFACE TECH CHENGDU CO LTD