Solomon Systech Limited

Solomon Systech (shenzhen) Limited

Solomon Systech (china) Limited

Siu Hong Lui

Wing Chi Stephen Chan

Sing Ng

Hon Sheung Liu

Xiacong Liu

Wai Hon Ng

Johnkid Lo

Wai Pak Choi

Pak Kong Dunn

Wai Kin Cheng

Rong Gao

Kwok Wah Chu

Yao Lu

In a liquid crystal display (LCD), a liquid crystal (LC) panel has a display area of arbitrary shape. A light-emitting area of a backlight panel is partitioned into zones for providing local dimming to the LC panel. The LC panel is partitioned into display regions. An apparatus for controlling the LC panel and the backlight panel has zone registers each recording a proportion of area of a zone covered by a corresponding display region. The apparatus computes a dimming factor for the zone according to its recorded proportion and pixel data of a portion of image located on the zone, allowing local dimming to be provided without requiring boundary information of the display area. A two-phase arrangement is used to calculate the dimming factor, achieving local dimming to save power in backlight generation while reducing a potential loss of image brightness in high-brightness part of the image portion.

Backlight generation with local dimming for liquid crystal panel having arbitrary shape

A touch-sensing-enabled display module is provided. In the module, a display panel has an electroluminescent layer, such as an organic light emitting diode (OLED) layer, sandwiched between cathode electrodes and anode electrodes. The anode electrodes transmit touch-sensing signals induced at the display panel. The MSN performs multiplexing and summing on the touch-sensing signals to produce output-channel signals for touch sensing. The multiplexing and the summing are reconfigurable such that the touch-sensing signals are dynamically selected for summing to produce one or more output-channel signals. A touch controller measures the output-channel signals to generate touch data. The module further includes a display driver for driving the cathode and anode electrodes. By using the MSN, the display panel is able to provide adaptive sensor reconfiguration. One particular advantage of adaptive sensor reconfiguration is that the signal-to-noise ratio of a touch signal is improved, increasing accuracy in touch detection.

Reconfigurable touch sensing for touch-display panel

A slim and cost effective power module solution derived from the multiple-phase buck converter technology that addresses the problems of inductor thickness and excessive magnetic material use. Such power module solution utilizes a multi-phase constant current topology and a corresponding electronic controller to provide a constant current source for various OLED lighting applications. The multi-phase constant current topology comprises two or more inductor-flyback diode feedback loops. Each inductor-flyback diode feedback loop is triggered ON and OFF out-of-phase by a current controller, which senses and estimates the average current supplied to the load, and causes the adjustments to the average current supplied to the load by controlling the ON duration of the inductor-flyback diode feedback loops.

Method and apparatus of a multi-phase convertor topology

A controller for detection of touches by a single finger or multiple fingers on a touch panel, the touch panel including a first group of electrodes arranged in a first direction and a second group of electrodes arranged in a second direction, thereby forming a plurality of crossover points. The controller includes: a plurality of signal drivers coupled to the first group of electrodes and configured to excite the first group of electrodes sequentially using a spread spectrum signal; a plurality of signal sensors coupled to the second group of electrodes and configured to detect peaks and troughs of capacitive coupled signals at the second group of electrodes, the detecting being performed simultaneously for the crossover points along a current one of the first group of electrodes that is being excited; and a signal processing device configured to detect the touches on the touch panel and to determine touch positions and touch movements, based on the detected peaks and troughs of the capacitive coupled signals.

Method and apparatus for operating a touch panel

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Hong Kong, China

Siu Hong Lui