Abstract: A driving method for a liquid crystal display device is provided. The liquid crystal display device has a wide viewing angle mode and a narrow viewing angle mode. The driving method includes: in the wide viewing angle mode, all the frames of the liquid crystal display device have the same display brightness; in the narrow viewing angle mode, the odd frames and the even frames of the liquid crystal display device have different display brightness. In the narrow viewing angle mode of the liquid crystal display device, by using an alternate driving method of bright frames and dark frames, the mura degree is significantly reduced, and the smoothness of dynamic picture display is improved, thereby improving the use experience of users.

Abstract: A viewing angle switchable liquid crystal display device includes a display panel. The display panel includes a first substrate, a second substrate disposed opposite the first substrate, and a liquid crystal layer disposed between the first substrate and the second substrate. The second substrate is provided with a first electrode and a second electrode. The first electrode is a common electrode, and the second electrode is a pixel electrode. The first substrate is provided with a third electrode for controlling the switching of the viewing angle. A periodic alternating voltage is applied to the third electrode when the viewing angle of the liquid crystal display device is switched, and a period of the periodic alternating voltage is an even multiple of a refresh period of each frame of the display panel.

Abstract: A method for driving a liquid crystal display device capable of switching between a wide viewing angle and a narrow viewing angle. In a first viewing angle mode, a direct-current common voltage is applied to a common electrode and voltage signals are applied to a first bias electrode and a second bias electrode. In a second viewing angle mode, a direct-current common voltage is applied to the common electrode, a first alternating-current voltage is applied to the first bias electrode and a second alternating-current voltage is applied to the second bias electrode. In addition, in the second viewing angle mode, pixel units covered by each first electrode strip of the first bias electrode have alternating positive and negative polarities, and pixel units covered by each second electrode strip of the second bias electrode have alternating positive and negative polarities.

Abstract: A touch display panel with switchable viewing angles includes a first substrate, a second substrate, and a liquid crystal layer between the first substrate and the second substrate. The first substrate is provided with a viewing angle control electrode. The second substrate is provided with a common electrode and a sensing circuit layer. The common electrode includes a plurality of electrode blocks arranged in an array and insulated from each other. The sensing circuit layer includes a plurality of sensing lines insulated from each other. The sensing lines are electrically connected to the electrode blocks in a one-to-one correspondence, respectively. Each frame of the display panel is divided into a display period and a touch period. The electrode blocks of the common electrode are used for image display during the display period, and the electrode blocks of the common electrode are used for touch sensing during the touch period.

Abstract: A driving method for a liquid crystal display device is provided. The liquid crystal display device has a wide viewing angle mode and a narrow viewing angle mode. The driving method includes: in the wide viewing angle mode, all the frames of the liquid crystal display device have the same display brightness; in the narrow viewing angle mode, the odd frames and the even frames of the liquid crystal display device have different display brightness. In the narrow viewing angle mode, of the liquid crystal display device, by using an alternate driving method of bright frames and dark frames, the mura degree is significantly reduced, and the smoothness of dynamic picture display is improved, thereby improving the use experience of users.

Abstract: A viewing angle switchable liquid crystal display device includes a display panel. The display panel includes a first substrate, a second substrate disposed opposite the first substrate, and a liquid crystal layer disposed between the first substrate and the second substrate. The second substrate is provided with a first electrode and a second electrode. The first electrode is a common electrode, and the second electrode is a pixel electrode. The first substrate is provided with a third electrode for controlling the switching of the viewing angle. A periodic alternating voltage is applied to the third electrode when the viewing angle of the liquid crystal display device is switched, and a period of the periodic alternating voltage is an even multiple of a refresh period of each frame of the display panel.

Abstract: A touch display panel with switchable viewing angles includes a first substrate, a second substrate, and a liquid crystal layer between the first substrate and the second substrate. The first substrate is provided with a viewing angle control electrode. The second substrate is provided with a common electrode and a sensing circuit layer. The common electrode includes a plurality of electrode blocks arranged in an array and insulated from each other. The sensing circuit layer includes a plurality of sensing lines insulated from each other. The sensing lines are electrically connected to the electrode blocks in a one-to-one correspondence, respectively. Each frame of the display panel is divided into a display period and a touch period. The electrode blocks of the common electrode are used for image display during the display period, and the electrode blocks of the common electrode are used for touch sensing during the touch period.

Abstract: The present disclosure provides an image-based classification system, comprising an image capturing device, and a processing device connected to the image capturing device. The image capturing device is used for capturing an image of an object. The object has a surface layer and an inner layer. The processing device is configured to use a deep learning model, perform image segmentation on the image of the object, define a surface-layer region and an inner-layer region of the image, and generate classification information. The surface-layer region and the inner-layer region correspond respectively to the surface layer and the inner layer of the object.

Abstract: A method for driving a liquid crystal display device capable of switching between a wide viewing angle and a narrow viewing angle. In a first viewing angle mode, a direct-current common voltage is applied to a common electrode and voltage signals are applied to a first bias electrode and a second bias electrode. In a second viewing angle mode, a direct-current common voltage is applied to the common electrode, a first alternating-current voltage is applied to the first bias electrode and a second alternating-current voltage is applied to the second bias electrode. In addition, in the second viewing angle mode, pixel units covered by each first electrode strip of the first bias electrode have alternating positive and negative polarities, and pixel units covered by each second electrode strip of the second bias electrode have alternating positive and negative polarities.

Abstract: A method for establishing a BLE mesh network, comprising: receiving, by a first node, from a second node, a first network packet; determining, by the first node, whether the received first network packet has been received before, (a) determining whether the first node is a destination node if the received first network packet is different from the network packet stored in the buffer, performing an action defined by the first network packet if the first node is the destination node, and broadcasting the received first network packet through an advertising channel in the BLE mesh network if the first node is not the destination node; (b) dropping the received first network packet if the received first network packet is the same as at least one network packet stored in the buffer.

Abstract: A method for establishing a BLE mesh network, comprising: receiving, by a first node, from a second node, a first network packet; determining, by the first node, whether the received first network packet has been received before, (a) determining whether the first node is a destination node if the received first network packet is different from the network packet stored in the buffer, performing an action defined by the first network packet if the first node is the destination node, and broadcasting the received first network packet through an advertising channel in the BLE mesh network if the first node is not the destination node; (b) dropping the received first network packet if the received first network packet is the same as at least one network packet stored in the buffer.

Abstract: A liquid crystal display device includes a first substrate, a second substrate, and a liquid crystal layer. The first substrate includes a first transparent substrate including a first surface and a second surface, a color filter layer formed on the first surface of the first transparent substrate, a first alignment film formed on the color filter layer, and a first electrode interlayered in the color filter layer. The second substrate includes a second transparent substrate comprising a third surface and a fourth surface, a second electrode and a third electrode formed on the third surface of the second transparent substrate sequentially, and a second alignment film is formed on the third electrode. The second electrode and the third electrode are arranged at different insulation layers respectively and electrically insulated with each other. The LCD device of the present invention has an improved transmittance and a fast response time.

Abstract: A liquid crystal display device includes a first substrate, a second substrate opposite to the first substrate, and a liquid crystal (LC) layer sandwiched between the two substrates. The first substrate includes gate lines and data lines, and the gate lines and the data lines data lines are intersected with each other to define pixel areas. Each of the pixel areas includes a pixel electrode and first common electrodes arranged at different layers, and the first common electrodes are electrically coupled to each other. The second substrate includes a second common electrode, and the LC layer comprises negative LC molecules.

Abstract: A facial expression recognition system includes a facial database, an image capture unit, an expression recognition data generation unit and an expression recognition unit. The facial database includes a plurality of expression information and expression features of optical flow field, wherein each of the expression features of optical flow field corresponds to one of the expression information. The image capture unit captures a plurality of facial images. The expression recognition data generation unit is coupled to the image capture unit and the facial database for receiving a first facial image and a second facial image from the image capture unit and calculating an expression feature of optical flow field between the first facial image and the second facial image corresponding to each of the expression information.

Abstract: A liquid crystal display device includes a first substrate, a second substrate, and a liquid crystal layer. The first substrate includes a first transparent substrate including a first surface and a second surface, a color filter layer formed on the first surface of the first transparent substrate, a first alignment film formed on the color filter layer, and a first electrode interlayered in the color filter layer. The second substrate includes a second transparent substrate comprising a third surface and a fourth surface, a second electrode and a third electrode formed on the third surface of the second transparent substrate sequentially, and a second alignment film is formed on the third electrode. The second electrode and the third electrode are arranged at different insulation layers respectively and electrically insulated with each other. The LCD device of the present invention has an improved transmittance and a fast response time.

Abstract: A liquid crystal display device, in which each pixel region includes a plurality of first electrodes electrically connected to each other, a plurality of second electrodes electrically connected to each other and a plurality of third electrodes electrically connected to each other; the third electrodes are arranged in parallel with the second electrodes approximately and are electrically connected with the first electrodes; the first electrodes and the second electrodes are located in different layers respectively and there is an insulation layer therebetween; the first electrodes and the third electrodes intersect with each other to define a plurality of unit regions; there are two second electrodes passing through inside each unit region, and the first electrode between the two second electrodes is provided with a protrusion-shaped pattern in a position not overlapping with the second electrode. The LCD device has a wider viewing angle and lower operating voltage.

Abstract: An LCD includes a first substrate, a second substrate, a liquid crystal layer between the first and second substrates, first and second alignment films respectively disposed on the first and second substrates. The first substrate comprises multiple scanning lines and multiple data lines intercrossed with the multiple scanning lines to define multiple pixel areas. Each pixel area comprises multiple electrically interconnected first electrodes and multiple electrically interconnected second electrodes. The first electrodes and the second electrodes are disposed on different layers and mutually intersected to define multiple sub-pixel areas. Each sub-pixel area further comprises two protrusion-shaped patterns facing each other on two adjacent first electrodes where the first electrodes and the second electrodes are not overlapped.

Abstract: A liquid crystal display device comprises a first and a second substrates which are oppositely configured, and a liquid crystal layer interposed therebetween, the first substrate comprising a transparent substrate and a plurality of scanning lines and data lines formed on the transparent substrate, the plurality of scanning lines and data lines crosswise defining a plurality of pixel regions. Each pixel region comprises at least two electrode groups and a third transparent electrode provided between the two adjacent electrode groups, each electrode group comprising a first and a second transparent electrodes alternately located on different layers. During operation of the liquid crystal display device, a fringe field is generated between the first and the second transparent electrodes, and a horizontal electric filed is generated between the first and the third transparent electrodes so as to enhance the transmittance of the whole liquid crystal display device.

Abstract: A liquid crystal display device includes a first substrate, a second substrate opposite to the first substrate, and a liquid crystal (LC) layer sandwiched between the two substrates. The first substrate includes gate lines and data lines, and the gate lines and the data lines data lines are intersected with each other to define pixel areas. Each of the pixel areas includes a pixel electrode and first common electrodes arranged at different layers, and the first common electrodes are electrically coupled to each other. The second substrate includes a second common electrode, and the LC layer comprises negative LC molecules.

Abstract: A thin film transistor array substrate comprises a transparent substrate, and scanning lines, data lines and pixel regions that are formed on the transparent substrate. Each pixel region comprises a pixel electrode, a thin film transistor for controlling the pixel electrode, a first push alignment electrode and a second push alignment electrode. Projections of the first and second push alignment electrodes on the transparent substrate are located on two opposite sides of the pixel electrode. The pixel electrode is covered with an insulation layer and the insulation layer is provided with a pull alignment opening. When the thin film transistor array substrate is in operation, an oblique pull electric field is formed at the pull alignment opening, and transverse push electric fields are formed between the first push alignment electrode and the pixel electrode as well as between the second push alignment electrode and the pixel electrode, respectively.