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Capacitor type touch panel operating method and touch type naked-type stereoscopic display

A technology of capacitive touch and operation method, which is applied in three-dimensional systems, instruments, electrical components, etc., and can solve problems such as voltage leakage, affecting the accuracy of touch detection, and inability to partition

Active Publication Date: 2011-10-19
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the barrier potential is a negative voltage to the ground, since the driving potential is generally higher than the barrier potential, voltage leakage is likely to occur, so that the touch integrated circuit reads a voltage that cannot be divided (that is, it cannot be correctly judged whether it is Touch), which will affect the touch detection accuracy

Method used

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  • Capacitor type touch panel operating method and touch type naked-type stereoscopic display
  • Capacitor type touch panel operating method and touch type naked-type stereoscopic display
  • Capacitor type touch panel operating method and touch type naked-type stereoscopic display

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Embodiment Construction

[0041] see figure 1 , which shows a schematic structural diagram of a touch-type naked-eye stereoscopic display related to an embodiment of the present invention. The touch-type autostereoscopic display 10 includes: a display panel 11 , a barrier light valve layer 13 , a barrier layer 15 and a touch panel 17 . Wherein, the display panel 11 is used to display image data, and it can be a conventional liquid crystal display panel, an electrophoretic display panel, etc.; the barrier layer 15 is suitable for receiving and providing a barrier potential such as ±5V, which is, for example, indium tin oxide (indium tin oxide) tin oxide, ITO) layer; the barrier light valve layer 13 is sandwiched between the display panel 11 and the barrier layer 15 and the light transmission degree of the barrier light valve layer 13 is controlled by the barrier potential on the barrier layer 15, where the barrier light The valve layer 13 includes, for example, a liquid crystal layer or an electrophore...

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Abstract

The invention relates to a capacitor type touch panel operating method and a touch type naked-type stereoscopic display. The capacitor type touch panel operating method is suitably applied in the touch type naked-type stereoscopic display. The capacitor type touch panel comprises sensing elements. Specifically, the capacitor type touch panel operating method comprises a step of performing touch potential reading operation only when a signal value due to a barrier potential change is smaller than a preset value. The touch potential reading operation comprises steps of providing a first driving signal to sensing elements so as to perform touch potential reading operations when the barrier potential is a high potential; and providing a second driving signal to sensing elements to perform touch potential reading operations when the barrier potential is a low one, wherein, the pulse amplitude of the first driving signal is lower than that of the second driving signal.

Description

technical field [0001] The invention relates to the technical field of touch display, in particular to an operation method of a capacitive touch panel and a touch-type naked-eye three-dimensional display. Background technique [0002] The touch input device provides a new human-computer interaction interface, which is more intuitive and more humane in use. Integrating a touch input device (such as a capacitive touch panel) with a naked-eye 3D display can result in a touch-type naked-eye 3D display, which has both stereoscopic image display and touch input functions. [0003] Usually, the touch detection process of the touch integrated circuit (Touch IC, used as the detection unit) in the touch-type naked-eye stereoscopic display mainly has three working processes, which are scanning process, raw data process and seat processing. Coordinate calculation; wherein, the scanning process will suffer interference (such as surge interference) due to the change of the barrier potent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044G02B27/22
CPCH04N13/31H04N13/398G06F3/0418G06F3/0446
Inventor 刘贵文王朝珍李纯怀
Owner AU OPTRONICS CORP
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