Touch display and method for determining positions of touch points
A touch display and touch point technology, which is applied in the fields of instruments, computing, electrical and digital data processing, etc., can solve the problems of increasing the complexity of the internal structure of the display screen, increasing the difficulty of the display screen production process, and the refraction effect being untouchable. The effect of steps and difficulty, simple structure and low cost
Inactive Publication Date: 2012-02-29
K TRONICS (SUZHOU) TECH CO LTD +1
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The external touch display is made by superimposing the display screen for display and the touch screen for sensing the coordinates of the touch point, which not only makes the touch display relatively thick, but also makes the refraction effect easily exist due to the thickness of the touch screen superimposed on the upper layer. What you touch is not what you get, and there are also defects such as brightness drop or blurred display
The built-in touch display is to add sensing elements to the pixel area inside the display to realize the perception of the coordinates of the touch point. Although it solves the defects of the external touch display such as thickness and brightness reduction to a certain extent, it increases the internal structure of the display. The complexity, on the one hand, increases the difficulty of the production process of the display screen, and on the other hand, reduces the yield
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0046] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.
[0047] figure 1 It is a schematic structural diagram of the first embodiment of the touch display of the present invention, figure 2 for figure 1 side view. Such as figure 1 with figure 2 As shown, the main structure of the touch display in this embodiment includes a display screen 1, a backlight source 2, three resistive angle sensors and a data processing device (data processing device is not shown), the display screen 1 is used for displaying pictures, and the backlight source 2 For providing the light source, three resistive angle sensors are arranged between the display screen 1 and the backlight 2 which are parallel to each other and separated by a set distance, and the current changes according to the deflection generated by the touched display screen 1, and the data The processing device is connected wit...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a touch display and a method for determining positions of touch points. The touch display comprises a fixed body and a deflector, wherein at least three resistance-type angular transducers are arranged between the fixed body and the deflector and generate current variations along with the deflection generated by the touched deflector; the resistance-type angular transducers are connected with a data processing device; the data processing device is used for acquiring position coordinates of the touch points according to the current variations of the resistance-type angular transducers; the fixed body is a backlight source; and the deflector is a display screen. By organically combining material mechanics with principles of electricity, compared with the built-in orexternal touch displays, the touch display of the invention has the advantages of simple structure, convenient installation, low manufacturing cost and the like, and has wide application prospects.
Description
technical field [0001] The invention relates to a flat panel display, in particular to a touch display and a method for determining the position of a touch point thereof. Background technique [0002] Currently, there are various types of touch displays in the prior art. According to the working principle, it mainly includes three types: inductive, capacitive and resistive, and according to the structural form, it mainly includes two types: external and built-in. But whether it is external or built-in, its working principle is still limited to three types: inductive, capacitive and resistive. The resistive type uses pressure sensing to control. By setting up two conductive layers, the two conductive layers are in contact with the touch point when the finger touches, the resistance changes, and the touch point position is obtained from the resistance change. The capacitive type uses the current induction of the human body. By setting a conductive layer and leading four elec...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041
Inventor 周伟峰郭建明星
Owner K TRONICS (SUZHOU) TECH CO LTD