Touch display apparatus
A touch display and touch sensing technology, which can be used in instruments, electrical digital data processing, and data processing input/output processes, etc., and can solve problems such as difficulty in obtaining high-position precision touch pressure detection
Inactive Publication Date: 2017-05-24
NANCHANG O FILM TECH CO LTD +2
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Problems solved by technology
However, the existing methods are difficult to obtain the touch pressure detection effect with high position accuracy, and most of them can only detect the touch pressure information of a single point
Method used
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[0025] The touch display device provided by the present invention can be used as a display terminal with a touch interaction form such as a mobile phone and a tablet computer.
[0026] Such as figure 1 and figure 2 As shown in , the touch display device provided by an embodiment of the present invention includes a protective cover 10 , a touch sensing unit 20 , a display unit 30 and a pressure sensing unit 70 . The protective cover 10 , the touch sensing unit 20 and the display unit 30 are arranged in sequence, and the pressure sensing unit 70 is arranged in the display unit 30 .
[0027] The touch sensing unit 20 includes touch driving electrodes and touch sensing electrodes. The touch driving electrodes and the touch sensing electrodes can be distributed on the same substrate, such as the so-called GF structure, GF2 structure, etc. in the industry, or respectively distributed on two different substrates, such as the GFF structure called in the industry. In other embodime...
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The invention relates to a touch display apparatus. The touch display apparatus comprises a protective cover plate, a touch induction unit and a display unit; the touch induction unit is used for inducing a touch signal applied to the protective cover plate; the display unit comprises a backlight module; the backlight module comprises an optical film and a protective shell used for protecting the optical film; the touch display apparatus further comprises a pressure induction unit arranged between the optical film and the protective shell; the pressure induction unit comprises an upper layer structure and a lower layer structure; each of the upper layer structure and the lower layer structure comprises a substrate, an electrode arranged on the substrate, and a force sensitive resistance layer; positive projection of the electrode in the upper layer structure and positive projection of the electrode in the lower layer structure have a crossed region; and the force sensitive resistance layers in the upper layer structure and the lower layer structure are arranged adjacently and at intervals. According to the touch display apparatus, the pressure induction unit is integrated in the display unit, and the pressure induction unit is provided with the force sensitive resistance layers, so that a pressure signal of multi-point touch can be detected and the advantage of high detection precision is achieved.
Description
technical field [0001] The invention relates to the field of touch display, in particular to a touch display device with pressure sensing function. Background technique [0002] Due to its advantages of ease of operation and flexibility, the touch screen has become the main means of human-computer interaction for personal mobile communication devices and comprehensive information terminals (such as mobile phones, tablet computers and super notebook computers, etc.). Compared with resistive touch screens and other types of touch screens, capacitive touch screens are gradually being widely used in smart terminals due to their advantages of low cost, simple structure, and durability. However, the existing capacitive touch screen only senses the touch position and operation on the plane where the screen body is located, and it is difficult to sense the touch parameters brought about by the change of pressure applied to the surface of the screen body. [0003] In order to sense ...
Claims
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Inventor 钭忠尚孟锴郑刚强黄梅峰唐彬倪宇阳
Owner NANCHANG O FILM TECH CO LTD