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Touch display device, driver integrated circuit and touch display panel

A touch display panel and integrated circuit technology, applied in the field of driver integrated circuits, touch display panels, and touch display devices, can solve the problem of high cost of the driver integrated circuit 110, and achieve the effect of reducing the number of pads

Pending Publication Date: 2022-04-22
NOVATEK MICROELECTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The large number of pads will make the cost of the driver integrated circuit 110 high

Method used

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  • Touch display device, driver integrated circuit and touch display panel
  • Touch display device, driver integrated circuit and touch display panel
  • Touch display device, driver integrated circuit and touch display panel

Examples

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Embodiment Construction

[0039] Reference will now be made in detail to the exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers are used in the drawings and descriptions to refer to the same or like parts.

[0040] As used throughout the specification of this application, including the claims, the term "coupled (or connected)" may refer to any means of connection, direct or indirect. For example, if it is described that a first device is coupled (or connected) to a second device, it should be interpreted that the first device can be directly connected to the second device, or the first device can be connected to the second device through other devices or certain A connection means indirectly connected to the second device. Terms such as "first" and "second" mentioned in the entire specification of this application (including claims) are used to name components (elements), or to distinguish differ...

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PUM

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Abstract

The invention provides a touch display device, a driver integrated circuit and a touch display panel. The driver integrated circuit includes a first pad, at least one second pad, a display driving channel, a touch sensing channel, a switching circuit, and a control circuit. The switching circuit is coupled to the display driving channel, the touch sensing channel and the first connecting pad. In a display stage, the switching circuit and the routing circuit couple the display driving channel to a data line of the touch display panel through the first connecting pad, and a control signal for controlling the routing circuit passes through the at least one second connecting pad. In a touch control stage, the switching circuit and the routing circuit couple the touch control sensing channel to the common electrode of the touch control display panel through the first connecting pad.

Description

technical field [0001] The present invention relates to an electronic device, and in particular to a touch display device, a driver integrated circuit and a touch display panel. Background technique [0002] In-cell touch display panels are widely used in various electronic devices. The mainstream method of the in-cell touch display panel is to cut the common voltage (VCOM) electrode layer of the display panel into a plurality of common electrodes. These common electrodes can provide common voltages to the pixel arrays of the display panel during the display driving operation. In the display driving operation, the display driving channel in the driver integrated circuit can output multiple display driving voltages to multiple data lines (source lines) of the pixel array through multiple display driving pads. [0003] figure 1 is a schematic diagram of a touch display device. figure 1 The touch display device shown includes a driver integrated circuit 110 and a touch disp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
CPCG06F3/0412G06F3/04164G06F3/04166G06F3/044
Inventor 蔡维纲
Owner NOVATEK MICROELECTRONICS CORP