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Touch control type flat panel display

A flat-panel display and flat-panel display technology, which is applied to static indicators, instruments, and electrical digital data processing, etc., can solve the problems of increasing the number of lead-out electrode lines, deteriorating display light transmittance, and loss of display effect, so as to prevent signal loss. The effect of crosstalk

Inactive Publication Date: 2014-12-24
UNITED PRECISION MACHINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the array of active device units for touch control prepared on the panel can make each sensing electrode unit work almost completely independently, avoiding the crosstalk of signals between different sensing electrode units, thereby improving the resolution of touch control, but the touch The control active device unit array is prepared in the display area of ​​the display panel, which reduces the display window opening rate of the display panel, deteriorates the light transmittance of the display, and loses the display effect
[0005] The patent application No. 201210305157.6 titled "A Digital Capacitive Touch Screen" proposes to set sensing electrode units arranged in an array on the touch substrate, and each sensing electrode unit is provided with its own independent lead-out electrode lines. The touch signal and its change on each lead electrode line correspond to whether the sensing electrode unit at the corresponding position is touched or not, which makes the touch detection easier, but the number of independent lead electrode lines for each sensing electrode unit will greatly increase. On the one hand, a large number of lead-out electrode lines requires a corresponding increase in the output of the touch driver IC, which may increase the cost of the touch driver IC. On the other hand, a large number of lead-out electrode lines will also increase the difficulty of peripheral wiring and the display panel. edge width

Method used

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Examples

Experimental program
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specific Embodiment approach 1

[0037] Such as figure 1 In the touch panel display 100 shown, the schematic diagram of the electrode structure of each layer is as follows: Figure 1a As shown, its side view is shown as Figure 1b As shown, the touch panel display 100 includes an active display panel and touch sensing electrodes. The display panel has a lower substrate 101 and an upper substrate 102. The two substrates are pasted together by an adhesive 1130. The area surrounded by the two substrates is Filled with LCD 1120. The inner surface of the upper substrate 102 has display common electrodes 190; the inner surface of the lower substrate 101 has display row scan electrode line groups 110, display column signal electrode line groups 120, (m×n) display active devices (such as thin films) Field Effect Transistor (TFT) unit array 130 and (m×n) display pixel electrode unit array 140, display row scanning electrode line group 110 includes 111, 112, ..., 11m scanning electrode lines, display column signal el...

specific Embodiment approach 2

[0045] Such as figure 2 The shown touch panel display 200 includes an active display panel and touch sensing electrodes, and the display panel has a lower substrate 201 and an upper substrate 202 . The inner surface of the lower substrate 201 has a display row scan electrode line group 210, a display column signal electrode line group 220, a (m×n) display thin film field effect transistor (TFT) unit array 230 and (m×n) display pixels The electrode unit array 240 shows that the row scanning electrode line group 210 includes 211, 212, ..., 21m scanning electrode lines, and the column signal electrode line group 220 includes 221, 222, ..., 22n signal electrode lines, where m and n are greater than A natural number of 2; the drains (Drain) of each TFT unit of the display TFT array 230 are connected to each unit of the display pixel electrode unit array 240 respectively, and the grid (Gate) is respectively connected to each electrode line of the display row scanning electrode line...

specific Embodiment approach 3

[0052] Such as image 3 The shown touch panel display 300 includes an active display panel and touch sensing electrodes, and the display panel has a lower substrate 301 and an upper substrate 302 . The inner surface of the upper substrate 302 has a display common electrode 390; the inner surface of the lower substrate 301 has a display row scan electrode line group 310, a display column signal electrode line group 320, and (m×n) display thin film field effect transistors (TFTs). ) unit array 330 and (m×n) display pixel electrode unit array 340, the display row scanning electrode line group 310 includes 311, 312, ..., 31m scanning electrode lines, and the display column signal electrode line group 320 includes 321, 322, ..., 32n signal electrode lines, m and n are natural numbers greater than 2; the drains (Drain) of each TFT unit of the display TFT array 330 are connected to the units of the display pixel electrode unit array 340, and the gates (Gate) are respectively connecte...

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Abstract

The invention relates to a touch control type flat panel display. A sensing electrode unit array is arranged in a display area of a substrate of a display panel, a touch control strobe drive device group is arranged in a non-display area, the sensing electrode unit array and the touch control strobe drive device group are located on different surfaces of different substrates or the same substrate, each extraction electrode wire of sensing electrode units is connected with an output end of the touch control strobe drive device group through a breakover point or a flexible circuit board, and the touch control strobe drive device group is connected with a touch control circuit. According to the touch control type flat panel display, isolation of the independent sensing electrode units is achieved, and the number of the touch control extraction electrode wires is reduced; the touch control strobe drive device group is manufactured while a display strobe drive device is manufactured, so that reduction of the cost and the size of the touch control type flat panel display is facilitated.

Description

technical field [0001] The invention relates to a touch panel display, in particular to an active touch panel display. Background technique [0002] In the current touch field, there are mainly resistive touch panels, photoelectric touch panels, ultrasonic touch panels, and surface capacitive touch panels. In recent years, capacitive touch panels have developed rapidly and have gradually become mainstream. Further improving the resolution and sensitivity of the capacitive touch panel is a matter of concern to everyone. [0003] The patent application No. 2009101662037 titled "An Active Touch System" proposes to arrange active device units and sensing electrode units in an array on the touch substrate, as well as two sets of intersecting control electrodes and detection electrodes. The detection electrode is connected to the sensing electrode unit through the active device unit. The control electrode is used to control the on-off of the active device unit, the detection ele...

Claims

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Application Information

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IPC IPC(8): G06F3/041G09G3/20
CPCG06F3/0412G06F3/04164G06F3/0443G06F3/0446
Inventor 陈梅英
Owner UNITED PRECISION MACHINE
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