Abstract: A source driver and a polarity inversion control circuit are provided. The source driver includes a plurality of channel pairs and the polarity inversion control circuit. The polarity inversion control circuit includes a signal generating circuit and a routing circuit. The signal generating circuit generates a polarity control signal. The routing circuit outputs a plurality of switching control signals corresponding to the polarity control signal to a plurality of output switching circuits of the channel pairs. The routing circuit changes the correspondence between the polarity control signal and the switching control signals according to a polarity inversion configuration signal.

Abstract: An electronic device control method applied to an electronic device can operate in a display mode and a touch sensing mode. The method comprises: (a) controlling the electronic device to have a first mode switch frequency; and (b) controlling the electronic device to have a second mode switch frequency different from the first mode switch frequency. The first mode switch frequency and the second mode switch frequency are frequencies for switching between the display mode and the touch sensing mode.

Abstract: A display driving circuit including a source driver and plural switch circuits is provided. The source driver includes plural source line and a control terminal. The source lines are electrically coupled to plural pixel units. The control terminal is for providing a control voltage. Each of the switch circuits includes a select terminal, an input terminal, and an output terminal. The select terminal is electrically coupled to the control terminal. The input terminal is electrically coupled to a supply power so as to apply a supply voltage on the input terminal. The output terminals of the switch circuits are electrically coupled to the pixel units.

Abstract: A display device includes a display panel, a gate driving circuit and a source driving circuit. The display panel includes multiple sub-pixels arranged in multiple rows and multiple columns. Three first sub-pixels of the sub-pixels have different colors and constitute one pixel. The first sub-pixels are disposed in the same column. The gate driving circuit is electrically connected to multiple gate lines. The number of the gate lines is less than the number of the rows. Each of the gate lines corresponds to at least two of the rows. Each of the gate lines is electrically connected to at least two of the sub-pixels in each of the columns. The source driving circuit is electrically connected to multiple data lines. The number of the data lines is greater than the number of the columns. Each of the columns corresponds to at least two of the data lines.

Abstract: An example method to control a light source in structured light imaging associated with a target includes obtaining two-dimensional image information and depth information of an image including the target and a scene, associating the depth information with pixels of the image, selecting a first set of pixels of the pixels based on a first set of the depth information and a second set of pixels of the pixels based on a second set of the depth information, calculating a first average pixel luminance (APL) of the first set of pixels and a total APL of the first and the second sets of pixels, obtaining a weighted APL based on the first APL and the total APL and controlling the light source based on the weighted APL.

Abstract: An example method to render an image includes obtaining two-dimensional image information of the image including a target and a scene and depth information associated with a first set of pixels and a second set of pixels of the image. The first set of pixels correspond to the target and the second set of pixels correspond to the scene. In response to depth information associated with a pixel of the image being in the predetermined range, the example method includes associating a first depth index with the pixel. Otherwise, the example method associates a second depth index with the pixel. The example method further includes calculating a weighted average picture level of the image based on grayscale values of pixels of the image, the first depth index and/or the second depth index and rendering the image based on the weighted average picture level.

Abstract: A light wave-guide optical element for use in a head-mounted display (HMD) or in a head-up display (HUD) includes an organic optical material, an anti-reflection stack and an organic optical cover. The organic optical material includes multiple bulging tips surrounded by a periphery plane. The anti-reflection stack conformally covers the bulging tips and the periphery plane. The organic optical cover correspondingly covers the anti-reflection stack, the periphery plane and the bulging tips.

Abstract: A method of fabricating a sensor device including at least the following steps is provided. An optical film stack is formed on a sensor substrate, wherein the sensor substrate includes a sensor region and a pad region beside the sensor region, and the optical film stack covers the sensor region while exposes the pad region. A releasing pattern is formed on the pad region. A lens material layer is formed on the sensor substrate to cover the releasing pattern and the optical film stack. The releasing pattern is removed from the sensor substrate to expose the pad region by patterning the lens material layer to form a lens on the optical film stack.

Abstract: An optical element including a substrate, a first optical film and a second optical film. The first optical film and the second optical film are disposed on at least one side of the substrate and are both formed on the substrate. The first optical film has a first surface facing away from the substrate and a plurality of first optical microstructures disposed on the first surface. The second optical film has a second surface facing away from the substrate and a plurality of second optical microstructures disposed on the second surface. The orthogonal projection of the first optical microstructures on the substrate does not overlap the orthogonal projection of the second optical microstructures on the substrate. A wafer level optical module adopting the optical element is also provided.

Abstract: An optical element including a first substrate, a second substrate, a first optical film, a second optical film, and a spacer is provided. The first optical film is disposed on the first substrate and has a first surface and a plurality of first optical microstructures. The first optical microstructures are disposed on the first surface. The second optical film is disposed on the second substrate and has a second surface and a plurality of second optical microstructures. The second surface is opposite to the first surface. The second optical microstructures are disposed on the second surface. The orthogonal projection of the first optical microstructures on the first substrate does not overlap with the orthogonal projection of the second optical microstructures on the first substrate. The spacer is disposed between the first substrate and the second substrate. A wafer level optical module adopting the optical element is also provided.

Abstract: A de-jaggy processing method includes dividing a display area of a display into a plurality of sub-areas; providing a first table composed of gray-level weights associated with corresponding luminances of each primary color for each said sub-area; providing a second table composed of distance-gain weights each correspondingly associated with a distance between a sub-pixel and a reference point; and obtaining a corrected luminance of a sub-pixel of a pixel by multiplying an original luminance of the sub-pixel by a corresponding gray-level weight and a corresponding distance-gain weight.

Abstract: A method for compressing an image with bit rate control includes: compressing data of a current block with a compression level to produce compression data of the current block; in response to compression of the current block, accumulating a data size of compressed data of blocks that have been compressed to obtain an accumulated real size; in response to the compression of the current block, accumulating a target block size according to a number of blocks that have been compressed to obtain an accumulated target size; and adjusting the compression level for a next block according to at least the accumulated real size and the accumulated target size.

Abstract: A flexible printed circuit (FPC) board includes a base film, a pair of traces and a chip. The pair of traces are disposed on the base film, and each trace has opposite first and second terminals. The chip is disposed on the base film and has pins that are respectively coupled to the first terminals of the traces. When the FPC board is bonded to a panel through the second terminals of the traces that are shorted to each other, the chip is configured to transmit a detection signal through one of the pins and receive a reception signal through the other of the pins, and to determine whether the FPC board works normally with the panel depending on the reception signal.

Abstract: A touch panel includes a first electrode layer and a second electrode layer. The first electrode layer has transmitting electrodes arranged in transmitting channels and traces respectively coupled to the transmitting channels. The second electrode layer has receiving electrodes arranged in receiving channels. At least one of the traces, the transmitting channels and one of the receiving channels in proximity of the traces form touch detection blocks that respectively correspond to the transmitting channels. For each touch detection block, in a circle area overlapped with at least one of the traces and substantially in the touch detection block corresponding to one of the transmitting channels, a summation of areas of the corresponded transmitting channel and the trace coupled to the corresponded transmitting channel is substantially larger than a summation of areas of the other transmitting channels and the other traces.

Abstract: A structured-light scanning system includes a plurality of switchable projectors that respectively generate emitted lights with a predetermined pattern, each switchable projector being capable of switchably generating either a two-dimensional (2D) emitted light or a three-dimensional (3D) emitted light; an optical alignment device that aligns the emitted lights to generate an aligned light, which is projected onto and reflected from a surface of an object, resulting in a reflected light; and an image sensor that detects the reflected light.

Abstract: A patterned light guide structure includes a transparent substrate with a first side and with a second side, an anti-reflective layer directly attached to the first side, a first light-shielding layer directly disposed on the anti-reflective layer, a second light-shielding layer directly disposed on the second side, and a protecting layer directly disposed on the first light-shielding layer to keep the first light-shielding layer from any deteriorating damage.

Abstract: A display device and a display control method are provided. The display device is applicable to a display panel. The display device includes a display driver integrated circuit (IC), a gate driver in panel (GIP) circuit and a GIP check circuit. The GIP circuit includes a plurality of shift registers connected in series, and the shift registers may generate a plurality of gate driving signals to control operations of a plurality of rows of display units within the display panel, respectively. The GIP check circuit may sequentially check whether a plurality of specific gate driving signals among the gate driving signals are available. The display driver IC may generate a check result according to at least one signal from the display panel, and selectively adjust display data corresponding to an image to make the display panel display an adjusted image according to the check result.

Abstract: A method of filtering a fingerprint image is provided. The method includes: receiving an input fingerprint image; preliminarily filtering the input fingerprint image to obtain a preprocessed image; normalizing and then filtering the preprocessed image to obtain a denoised image; filtering and then segmenting the preprocessed image to obtain a background mask; postprocessing the background mask to obtain a final mask; and applying the final mask to the denoised image to obtain an output fingerprint image.

Abstract: A knob device is applicable to a touch panel. The knob device includes a knob cover; and a rotation sensing element. The rotation sensing element includes a base and a plurality of sensing pads connected to the knob cover. The rotation sensing element is arranged between the touch panel and the knob cover. The base is connected to the knob cover. When a user touches the knob device, the touch panel generates a rotation sensing signal in response to a location of the plurality of sensing pads. An orthographic projection of the knob cover on the touch panel is divided into a plurality of parts, the plurality of parts are distributed radially from a center of the orthographic projection of the knob cover, each sensing pad is located in a part and connected to another sensing pad located in another part adjacent to the part.

Abstract: A method to smooth periphery pixels of an image includes operations. First, an image includes periphery pixels is provided. Each periphery pixel includes periphery sub-pixels. Each periphery sub-pixel includes a location parameter, a brightness parameter and a color parameter. Second, the image which includes the periphery pixels is displayed. Next, the periphery pixels are locked by targeting each periphery sub-pixel of each periphery pixel. The brightness parameter of each periphery sub-pixels is collected to target the periphery sub-pixels. Then, a smoothing operation is carried out to adjust the brightness parameters of the periphery sub-pixels to obtain adjusted brightness parameters. Afterwards, the periphery pixels with the adjusted brightness parameters are unlocked to obtain the image which has at least one smooth edge.