Embedded electromagnetic touch display screen and touch display device

An electromagnetic touch and built-in technology, which is applied in the fields of electrical digital data processing, instrumentation, calculation, etc., can solve the problem of low aperture ratio of LCD panel

Active Publication Date: 2014-07-16
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention provides a built-in electromagnetic touch display screen and a touch display device, which are used to solve the problem that in the prior art, t

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  • Embedded electromagnetic touch display screen and touch display device
  • Embedded electromagnetic touch display screen and touch display device
  • Embedded electromagnetic touch display screen and touch display device

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Embodiment Construction

[0057] In order to achieve the purpose of the present invention, the embodiment of the present invention provides an in-cell electromagnetic touch display screen and a touch display device, through which a plurality of data lines arranged to insulate and intersect with strip-shaped common electrodes, and at least two data lines The first direction circle is formed by the electrical connection of the first switch unit, and transparent, strip-shaped common electrodes are set, and at least two of the strip-shaped common electrodes are connected to form the second direction coil, and when the image is displayed, all the strip-shaped common electrodes When the same common voltage is applied, the first switch unit is turned off so that each of the data lines transmits display signals respectively, and when the touch is detected, all the strip-shaped common electrodes form a plurality of independent second direction coils to induce electromagnetic signals , and output the induced curr...

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Abstract

The invention discloses an embedded electromagnetic touch display screen and a touch display device. The embedded electromagnetic touch display screen and the touch display device have the main advantages that a common electrode layer of an existing display panel is divided into transparent strip-shaped common electrodes, the strip-shaped common electrodes are electrically connected with one another and are electrically connected with a plurality of data lines, and the common electrodes and the data lines are distributed in a crossed manner, so that all the strip-shaped common electrodes have unified electric potential in display time, functions of the common electrode layer can be realized, and an aperture ratio of the display screen can be guaranteed; independent first-direction coil induction electromagnetic signals are formed by at least two common electrodes in touch time, independent second-direction coil induction electromagnetic signals are formed by at least two data lines in the touch time, induction coordinates can be determined according to induced currents, and accordingly an electromagnetic touch effect can be realized by equipment of the display screen without other additional equipment.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an embedded electromagnetic touch display screen and a touch display device. Background technique [0002] With the rapid development of display technology, touch screens (Touch Panel) have gradually spread throughout people's lives. Compared with the traditional display that can only provide display functions, the display using the touch screen can enable information interaction between the user and the display control host. Therefore, the touch screen can completely or at least partially replace the commonly used input device. Some monitors can not only display, but also touch control. [0003] Common touch screens are divided into resistive touch screens, capacitive touch screens, electromagnetic touch screens and infrared blocking touch screens. The existing electromagnetic touch screen generally integrates the LCD panel and the electromagnetic input function into the disp...

Claims

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Application Information

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IPC IPC(8): G06F3/046
Inventor 王丽花马骏吴章奔
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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