G06F3/0443

TOUCH DETECTION DEVICE, DISPLAY DEVICE INCLUDING THE SAME, AND METHOD FOR MANUFACTURING THE SAME
20230043343 · 2023-02-09 ·

The present disclosure relates to a touch detection device, a display device including the same, and a method for manufacturing the same capable of minimizing an area of an outer area of a touch detection area or making the area of the outer area zero by changing disposition positions of touch driving lines and touch detection lines. The touch detection device comprising touch driving lines and touch detection lines, a driving electrode and a detection electrode disposed on the touch driving lines and the touch detection lines to overlap the touch driving lines and the touch detection lines.

TOUCH SENSING DEVICE AND DRIVING METHOD THEREOF
20230038508 · 2023-02-09 ·

The disclosure relates to a touch sensing device and a driving method thereof. A touch sensing device includes a touch driving device receiving touch sensing data from a touch sensor during a touch sensing period, a touch controller receiving the touch sensing data from the touch driving device during a display period, and a first bus connecting the touch driving device to the touch controller, wherein the touch driving device transfers the touch sensing data to the touch controller through the first bus during the display period.

ELECTRONIC DEVICE
20230043817 · 2023-02-09 ·

An electronic device including: a display layer configured to display images; a sensor layer disposed on the display layer and including a plurality of first electrodes and a plurality of second electrodes; and a sensor driver configured to drive the sensor layer, wherein the sensor driver is configured to sequentially provide a first driving signal to the plurality of first electrodes and, when the display layer displays a predetermined image, the sensor driver is configured to provide a second driving signal having a frequency different from that of the first driving signal to the plurality of first electrodes.

Touch electrodes with bar and stripe pattern
11556216 · 2023-01-17 · ·

This relates to touch sensor panels/touch screens including touch electrodes in a bar-and-stripe pattern. The bar-and-stripe pattern can improve touch signal levels for touch detection and improve uniformity of touch signal as objects move across the touch sensor panel/touch screen. Touch electrodes in a bar-and-stripe pattern can be formed from metal mesh in one or more layers of metal mesh. In some examples, “stripes” can be formed from groups of touch electrode segments in a first layer of metal mesh and can be interconnected by bridges formed in a second layer of metal mesh, different from the first layer of metal mesh, in the active area of the touch screen. Multiple stripes can be interconnected in the border area and/or in the active area to form a row touch electrode. In some examples, “bars” may also include bridges in the second layer of metal mesh.

Display apparatus having a connecting electrode which crosses a bending area

A display apparatus having a connection electrode which crosses a bending area may be provided. The connection electrode may be disposed on a device substrate including a bending area between a display area and a pad area. The connection electrode may connect the display area and the pad area across the bending area. The connection electrode may have a stacked structure of the lower connecting electrode and the upper connecting electrode. A light-emitting device, an encapsulating element and a touch electrode may be sequentially stacked on the display area of the device substrate. The upper connecting electrode may include the same material as the touch electrode. Thus, in the display apparatus, the disconnection of the connection electrode due to bending stress and external impact may be reduced.

Touch sensor

A touch sensor comprises a first electrode layer, a second electrode layer, and an insulation layer. The first electrode layer includes first main electrode cells connected and arranged in a first direction and second auxiliary electrode cells separated from the first main electrode cells and arranged separately in a second direction on the same lower plane. The second electrode layer includes first auxiliary electrode cells arranged separately in the first direction and stacked and connected to the first main electrode cells while having the same pattern as the first main electrode cells and second main electrode cells separated from the first auxiliary electrode cells, connected and arranged in a second direction, and stacked and connected to the second auxiliary electrode cells while having the same pattern as the second auxiliary electrode cells, on the same upper plane. The insulation layer is formed between the first electrode layer and the second electrode layer.

Display device with sensor

According to an aspect, a display device with a sensor includes: a substrate including a display region and a peripheral region on a periphery of the display region; detection electrodes arranged in a row-column configuration in the display region; and detection lines coupled to the respective detection electrodes. A shape of the substrate in a plan view includes a curve of a curved portion. The detection electrodes include a first electrode and a second electrode having a shape different from that of the first electrode in a plan view. The second electrode is juxtaposed with the curved portion. The detection lines each include a first line coupled to the first electrode and a second line coupled to the second electrode. The second line passes from the display region across the peripheral region and extends to a position overlapping with the second electrode in a plan view.

Display device
11550425 · 2023-01-10 · ·

A display device according to an example embodiment includes a display portion displaying an image, and a sense portion that is disposed over one side of the display portion, and senses an external input, wherein the sense portion includes: at least one of first sense electrodes receiving a first sense signal that is changed in response to the external input, at least one of second sense electrodes that are disposed at a distance from the first sense electrodes, wherein the first sense electrodes are disposed between the second sense electrodes, and at least one of compensation electrode that are disposed spaced apart from and between the first sense electrodes, and to which a compensation signal is applied, wherein the compensation signal and the first sense signal are inverted in phase.

Input/Output (I/O) Operative Touch Sensor Device (TSD)

A touch sensor device (TSD) includes TSD electrodes associated with a surface of the TSD. Also, an overlay that includes marker electrode(s) is also associated with at least a portion of the surface of the TSD. The TSD also includes drive-sense circuits (DSCs) operably coupled to the plurality of TSD electrodes. A DSC is configured to provide a TSD electrode signal to a TSD electrode and simultaneously to sense a change of the TSD electrode signal based on a change of impedance of the TSD electrode caused by capacitive coupling between the TSD electrode and the marker electrode(s) of the overlay. Processing module(s) is configured to process a digital signal generated by the DSC to determine characteristic(s) of the overlay that is associated with the at least a portion of the surface of the TSD.

System and method for touch sensing noise mitigation using sub-burst size

A display controller includes a touch sensing controller configured to drive sensing electrodes with a touch sensing waveform that includes multiple modulations. The touch sensing controller is further configured to halt driving the plurality of sensing electrodes when a number of the modulations satisfies a selected sub-burst size. The touch sensing waveform is synchronized to an instance of a horizontal sync signal.