Touch display device and manufacturing method thereof
一种触摸显示、触摸屏的技术，应用在静态指示器、仪器、计算等方向，能够解决检测失败、检测电路难以检测信号、淹没等问题，达到制成简单、提高信噪比、避免工艺的效果
Active Publication Date: 2012-07-04
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
View PDF5 Cites 77 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Because the signal corresponding to the mutual capacitance change is usually small, it is easy to be submerged in the larger substrate signal, making it difficult for the detection circuit 6 to detect the signal corresponding to the mutual capacitance change, resulting in detection failure
[0014] It can be seen from the above that the touch display device in the prior art includes a pixel array substrate (such as an LCD pixel array substrate, an OLED pixel array substrate) and a touch screen substrate oppositely arranged, wherein the output leads (including drive electrode leads and sensing electrode leads) of the touch screen substrate are connected to The peripheral leads of the pixel array substrate (including scan line leads and common electrode leads) generate a large parasitic capacitance at the overlap of the peripheral lead area, and the driving electrodes and sensing electrodes of the touch screen are coupled through the parasitic capacitances 13a and 13b to generate interference signals , making it difficult for the detection circuit to detect the signal corresponding to the mutual capacitance change, and even cause detection failure
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 moreExamples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0038] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0039] In the following description, many specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways than those described here, so the present invention is not limited by the specific embodiments disclosed below.
[0040] In order to solve the problems described in the background technology, the inventor provides a touch display device, which includes a pixel array substrate oppositely arranged and a touch screen substrate containing a touch structure layer; and a touch-sensitive touch display area, a peripheral lead area in which a plurality of leads (including scan line leads and common electrode leads) are arranged; in the peripheral lead area, th...
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 discloses a touch display device and a manufacturing method thereof. The touch display device includes a touch screen base plate and a pixel array base plate, and further includes a first shielding layer and a second shielding layer. The touch screen base plate includes a touch control structure layer and output leads of the touch control structure layer (including drive electrode leads and induction electrode leads); the pixel array base plate is provided with a pixel array and peripheral leads of the pixel array; the output leads of the touch control structure layer and the peripheral leads of the pixel array are overlapped in the light transmitting direction; the first shielding layer is arranged between the drive electrode leads and the peripheral leads of the pixel array; and the second shielding layer is arranged between the induction electrode leads and the peripheral leads of the pixel array. The shielding layers reduce the parasitic capacitance between the peripheral leads of the pixel array base plate and the output leads of the touch control screen base plate, avoid the condition that drive electrodes and induction electrodes of the touch screen are coupled through the parasitic capacitance, and further improve the SNR (Signal to Noise Ratio).
Description
technical field [0001] The present invention relates to the field of touch display, in particular to an embedded touch display device and a manufacturing method thereof. Background technique [0002] As an input medium, a touch display device is currently the simplest, most convenient and natural way of human-computer interaction. Therefore, touch display devices are more and more applied to various electronic products, such as mobile phones, notebook computers, MP3 / MP4 and so on. [0003] The touch display device is equipped with a touch screen to realize the touch display function, and based on different working principles and information transmission media, the touch screen can be divided into four types: resistive, capacitive, infrared, and surface acoustic wave. The capacitive touch screen has become the current mainstream touch screen technology due to its advantages of long life, high light transmittance, and support for multi-touch. In order to make the touch displ...
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 Applications(China)
IPC IPC(8): G06F3/041G02F1/133G02F1/1335G02F1/1362
Inventor 王丽花陈悦
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Try Eureka
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap