Sensor sensing based AMOLED (active matrix organic light emitting diode) touch display screen

A sensor and display technology, applied in the display field, can solve problems such as wrong touch coordinates, false touch signals, detected

Inactive Publication Date: 2013-06-05
KUNSHAN NEW FLAT PANEL DISPLAY TECH CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This technology uses different techniques to reduce error when measuring pressure on an electronic device's surface by accurately identifying changes caused by contact with it without actually feeling anything about how much force they are doing during use.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving the quality of displayed images due to their use in smaller and lighter LMOSA displays while still maintaining good image resolution capabilities. These improvements include reducing interference between ambient sound waves caused by various sources like loudspeakers, air conditioners, and vehicles during driving. Additionally, there needs to reduce costs associated with manufacturing large flat panels containing integrated circuit components.

Method used

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  • Sensor sensing based AMOLED (active matrix organic light emitting diode) touch display screen
  • Sensor sensing based AMOLED (active matrix organic light emitting diode) touch display screen
  • Sensor sensing based AMOLED (active matrix organic light emitting diode) touch display screen

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Embodiment Construction

[0061] The display screen of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments of the present invention.

[0062] US Patent US20120267660A1 discloses a technology for manufacturing an in-cell touch sensor on a thin film encapsulation layer through a thin film transistor (TFT) glass process. like figure 1 Shown is a cross-sectional view of an AMOLED display with an in-cell touch sensor. In order to drive the AMOLED display screen, a TFT and a wiring layer 11 are arranged on the TFT substrate 10 , and a light-emitting OLED layer 12 is arranged on the TFT and the wiring layer 11 . On the OLED layer 12, there is also a thin film encapsulation layer 13 for encapsulating the OLED layer 12. On the thin film encapsulation layer 13 , there is also a touch sensor composed of a touch sensor electrode layer 16 , a bridge 14 of the touch sensor layer and an insulating layer 15 sandwiched between them.

[0063] f...

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Abstract

The invention discloses a sensor sensing based AMOLED (active matrix organic light emitting diode) touch display screen. The touch display screen mainly comprises a touch sensor and a differential signal processing circuit, the touch sensor comprises a Dummy sensor and Touch sensors, the differential signal processing circuit samples capacitance of the Dummy sensor and the Touch sensors and measures in a differential mode so as to eliminate common noise of two channels. By the AMOLED touch display screen, the touch sensor can determine touch coordinates accurately, and accordingly touch sensing performance is improved.

Description

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Claims

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Application Information

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Owner KUNSHAN NEW FLAT PANEL DISPLAY TECH CENT
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