Egalax_empia Technology Inc.

Chin-Fu Chang

Shang-Tai Yeh

Cheng-Han Lee

Chi-Hao Tang

Shun-Lung Ho

Guang-Huei Lin

Po-Chuan Lin

Shih-Hao Chiu

Yu-Hao Chang

Jia-Ming Chen

Jen-Yi Sun

Chia-Ling Sun

Hsueh-Fen Lin

Ping Siauw

Hung-Yun Tai

Yu-Han Lin

Yu-Cing Lien

A touch panel sequentially comprising: a first electrode layer, an elastic dielectric layer, and a second structure, the first electrode layer comprises one or more first electrodes in parallel to a first axis, the second structure comprises multiple second circuits in parallel to a second axis, multiple third circuits in parallel to the first axis, multiple second electrodes, and multiple switch circuits, wherein each of the switch circuits connects one of the second electrodes and one of the second circuits, respectively, wherein each of the switch circuits is configured to connect or disconnect the one of the second electrodes and the one of the second circuits according to signals transmitted from one of the third circuits, wherein each of the first electrodes covers at least one of the third circuits, the switch circuits configured by the at least covered one of the third circuits, and the second electrodes corresponding to the switch circuits.

Touch panel, touch sensitive apparatus and method thereof and touch system

A passive capacitive stylus, comprising: a body, made of non-conductive material, comprises an internal space; a conductor, disposed inside the internal space, comprises conductive foam; a first head made of conductive material and disposed inside the first open and being protruded outside the body in a first direction of the central axis, the first head is in contact with the conductor; and a second head made of conductive material and disposed inside the second open and being protruded outside the body in a second direction of the central axis, the second head is in contact with the conductor.

Passive capactive stylus and eraser cap

The present invention relates to a touch module and a touch screen. The touch module includes a touch panel located on the display module, a main circuit board located outside the casing of the touch screen, a plurality of signal cables connecting the touch panel and the main circuit board, and an equal potential wiring. By setting an equal potential wiring in the touch module to electrically bridge any two signal cables, a short circuit is formed between the shielding layers of the signal cables so that the potentials of different signal cables can be equalized to make the signal cables roughly the same degree of electrostatic or electromagnetic interference from the environment. By making the signals obtained by the signal cables be disturbed to approximately the same degree, the touch module can accurately determine the touch position.

Touch module and touch screen using same

A pressure calibration method, applicable to a touch panel which sequentially comprises a first electrode layer, an elastic dielectric layer and a second electrode layer, the first electrode layer includes multiple first electrodes in parallel to a first axis, the second electrode layer includes multiple second electrodes in parallel to a second axis, the pressure calibration method comprising: retrieving a depression event according to mutual capacitance sensing between the first electrodes and the second electrodes; finding a corresponding calibration area according to coordinate of the depression event; when a calibration area where the touching event locates exists, taking the found calibration area as the corresponding calibration area; otherwise, taking a nearby calibration area which is closest to the touching event as the corresponding calibration area; and calculating a calibrated pressure value according to a pressure sensing value of the depression event and a pressure calibration function of the corresponding calibration area.

Pressure calibration method and touch sensitive process apparatus and touch system implementing the method

A touch panel, sequentially comprising: a conductive layer, a dielectric layer; and at least one layer of touch electrodes, which comprises multiple first electrodes in parallel to a first axis and multiple second electrodes in parallel to a second axis, wherein the first and the second electrodes connects to a touch sensitive processing apparatus, respectively, wherein the touch sensitive processing apparatus detects an external object approaching or touching the touch panel via the first and the second electrodes, wherein the conductive layer is closer to the external object than the at least one layer of touch electrodes.

Touch panel for capacitive sensing with reduced noise

A touch function setting method is provided. The method comprising: receiving a sequence parameter which includes multiple clicks, each of the clicks is corresponding to one of areas of a touch panel or screen; receiving a function parameter corresponding to the sequence parameter, the function parameter is corresponding to activate a function; and storing a group of touch function parameters, which includes the sequence parameter and the function parameter.

Electronic system and touch sensitive processing apparatus for touch function setting and activating and method thereof

A pressure calibration function calculation method, applicable to a touch panel which sequentially comprises a first electrode layer, an elastic dielectric layer and a second electrode layer, the first electrode layer includes multiple first electrodes in parallel to a first axis, the second electrode layer includes multiple second electrodes in parallel to a second axis, the pressure calibration function calculating method comprising: when standard testing pressure is applied to one or more calibrating points corresponding to one or more vertex of multiple calibration areas of the touch panel, respectively, gathering a pressure sensing value of each of the calibrating points by utilizing mutual capacitance sensing between the multiple first electrodes and the multiple second electrodes; and calculating a pressure calibration function corresponding to each of the calibration areas according to a coordinate, the standard testing pressure and the pressure sensing value of each of the calibration areas.

Touch sensitive processing apparatus and touch system for calculating pressure calibration function and method thereof

A transmitter comprising: a signal modulator for transmitting electrical signals via an electrode, wherein the electrical signals carry a message representing a signal value; and a controller, coupled to the signal modulator, configured for having the signal modulator transmitting the electrical signals with a first duty cycle in a reference signal time period and transmitting the electrical signals with a second duty cycle in a modulation signal time period, wherein a first ratio corresponding to the second duty cycle and the first duty cycle is corresponding to the signal value, wherein the lengths of the reference signal time period and the modulation signal time period are the same, and wherein the maximum amplitudes of the electrical signals during the reference signal time period and the modulation signal time period are the same.

Transmitter and method for transmitting signal value

System, method and apparatus with reduction of static electric charges effect on touch panel detection

The present application provides a transmitter including a first sensor and a processing module electrically coupled to the first sensor. The processing module is configured to transmit a first electric signal during a first time period. The first electric signal represents at least one part of a digital sensing value of the first sensor.

Touch sensitive processing method and apparatus and touch system for receiving information from transmitter

A pressure calibration method, applicable to a touch panel which sequentially comprises a first electrode layer, an elastic dielectric layer and a second electrode layer, the first electrode layer includes multiple first electrodes in parallel to a first axis, the second electrode layer includes multiple second electrodes in parallel to a second axis, the pressure calibration method comprising: retrieving a depression event according to mutual capacitance sensing between the first electrodes and the second electrodes; finding a corresponding calibration area according to coordinate of the depression event; and calculating a calibrated pressure value according to a pressure sensing value of the depression event and a pressure calibration function of the corresponding calibration area.

A flexible touch screen, comprising: a flexible display with a first bending line, wherein the first bending line separates the flexible display into a first part and a second part; and a first touch panel and a second touch panel disposed in different sides of the first bending line, wherein the first and the second touch panels attach to the flexible display, each of the first and the second touch panels comprises first electrodes and second electrodes which are connected with a touch sensitive processing apparatus, the first and the second electrodes intersect each other.

Flexible touch screen, touch sensitive processing apparatus and method, and electronic system

A touch sensitive processing method for reducing interference from pixel refresh, comprising: sensing horizontal electrodes of a touch screen three times for gathering three sensing values, the sensing steps are separated by a time period; summing the three sensing values as sums; according to the sums, determining an external conductive object is disposed near a N-th horizontal electrode among the horizontal electrode of the touch screen; emitting driving signal from the N-th horizontal electrode and sensing the driving signal via vertical electrodes of the touch screen for gathering an N-th sensing array; and calculating a position of a touch event according to the N-th sensing array and the position of the N-th horizontal electrode.

Touch sensitive processing apparatus and electronic system and method thereof for reducing interference from pixel refreshing

A touch sensitive processing method comprising: sensing a first characteristic value of the electrical signals received in a reference signal time period; sensing a second characteristic value of the electrical signals, having a first number of waves, received in a first modulation signal time period; sensing a third characteristic value of the electrical signals, having a second number of waves, received in a second modulation signal time period; calculating a first ratio of the second characteristic value and the first characteristic value and calculating a second ratio of the third characteristic value and first characteristic value; and calculating the signal value according to a function of the first ratio, the second ratio, the first number of waves and the second number of waves.

Touch sensitive apparatus, method and touch system for receiving signal value

A touch sensitive processing method, comprising: generating modified codes of N orthogonal pseudo random number (PN) codes, each of PN code has M symbols, where M and N are positive integers larger than 1; transmitting driving signals modulated by the N modified codes via N first electrodes, respectively, and sensing via multiple second electrodes in a M symbols period to generate M one-dimensional sensing information arrays; calculating sums of corresponding elements of the M one-dimensional sensing information arrays corresponding to each of the second electrodes, respectively; determining whether each of the sums is in a range; and recording the M one-dimensional sensing information arrays and their corresponding N first electrodes and N PN codes in response to that at least one of the sums is determined out of the range.

Growing community of inventors

Taipei, Taiwan

Chin-Fu Chang