Abstract: The disclosure provides a local stretch packaging structure, including a substrate, a flexible electronic element, a plurality of light-emitting display elements, and a packaging layer. The flexible electronic element is disposed on the substrate. These light-emitting display elements are disposed on the flexible electronic element. The packaging layer includes a packaging area and a non-packaging area. The packaging area covers the upper surface and sidewalls of these light-emitting display elements. The non-packaging area is directly covered the flexible electronic element that is not disposed with these light-emitting display elements.

Abstract: A folding lens system includes: a polarization-dependence device, a first optical device, a first polarization controller, a second optical device and a second polarization controller. The polarization-dependence device has a first surface and a second surface opposite to the first surface. The first optical device is located at a side facing toward the first surface of the polarization-dependence device. The first polarization controller is located between the polarization-dependence device and the first optical device. The first polarization controller has the same curvature as the first surface of the polarization-dependence device. The second optical device is located at a side facing toward the second surface of the polarization-dependence device. The second polarization controller is located between the polarization-dependence device and the second optical device. The second polarization controller has the same curvature as the second surface of the polarization-dependence device.

Abstract: The present disclosure provides a scan driving circuit, which includes a pull-up output charging circuit, a pull-down discharge circuit, a pre-charge circuit, an anti-noise start-up circuit and an anti-noise pull-down discharge circuit. The pull-up output charging circuit is electrically connected to an output terminal, and the pull-down discharge circuit is electrically connected to the output terminal. The pre-charge circuit is electrically connected to the pull-up output charging circuit and the pull-down discharge circuit through a driving node. The anti-noise start-up circuit is electrically connected to the pre-charge circuit. The anti-noise pull-down discharge circuit is electrically connected to the anti-noise start-up circuit, and the anti-noise pull-down discharge circuit is electrically connected to the driving node.

Abstract: A curved electronic device and a method for manufacturing the same are disclosed. The curved electronic device includes a substrate, a component layer, and a modulation layer. The component layer is disposed on the substrate. The component layer is composed of a plurality of electronic components and their connecting wiring arranged on the substrate. The modulation layer is disposed on the component layer, and includes at least one pattern area and at least one blank area that are formed on the component layer. The blank area allows one part of the electronic components to be exposed out of the modulation layer. The modulation layer and the substrate have different heat absorption rates, so that the positions of the substrate corresponding to the blank area and the pattern area have different degrees of softening, so as to prevent the component layer from being damaged in the process of stretching the substrate.

Abstract: A display system and a vehicular head-up display system using the same is disclosed. The display system includes an image generating device, a polarization reflection film, a light-transmitting substrate, a curved wave plate, a curved reflector and a transparent substrate. The image generating device emits polarized light. The curved wave plate adheres to the reflective curved surface of the curved reflector through an optical adhesive. The curved wave plate and the reflective surface have the same curvatures. The reflective curved surface faces towards the polarization reflection film. When the curved reflector reflects the polarized light sequentially passing through the polarization reflection film and the curved wave plate to the polarization reflection film through the curved wave plate, the curved wave plate converts the polarization direction of the polarized light. Finally, the polarization reflection film reflects the polarized light to the transparent substrate to generate a virtual image.

Abstract: A virtual reality display system of reduced size and depth but with a point of focus electronically changeable to suit different human eyes includes a display device and a focusing structure. The display device emits light for images, the focusing structure on the light path includes a first electrode layer, a second electrode layer, and a first liquid crystal layer between the first electrode layer and the second electrode layer, these two electrode layers receiving different voltages. The first liquid crystal layer is configured to converge the image light as necessary for the viewer and enlarge images as desired by the viewer. The image light after being focused displays a virtual reality image.

Abstract: A method for testing light-emitting elements includes: providing a substrate having light-emitting elements and conductive wires; providing at least one coil structure including a first coil and two conductive plugs connected to the first coil; providing a metal rod and a second coil winding the metal rod and connected to an AC power supply. Each light-emitting element includes a positive electrode and a negative electrode connected to one conductive wire, respectively. The substrate defines pairs of through holes, each pair of through holes is aligning with two conductive wires connected to the positive electrode and the negative electrode of one light-emitting element. The testing method further includes inserting the two conductive plugs into one pair of through holes, starting the AC power supply and moving the metal rod towards the coil structure to form an induced current in the first coil configured for driving the one light-emitting element.

Abstract: An optical environment oscillation detection system and an optical measurement method using the same are provided. This system includes a laser light source, a polarizer, a liquid crystal (LC) element, an analyzer, and an optical sensor arranged in sequence. A polarization axis of the polarizer and that of the analyzer are respectively parallel to a first and a second axis direction being perpendicular to each other. When there is no environmental disturbance, the alignment of LC cells in the LC element has an original pretilt angle, and the optical sensor senses a first scattered light intensity of the laser beam outputted from the analyzer. When there is environmental disturbance, the alignment of the LC cells has a changed pretilt angle in relative to the original pretilt angle, and the optical sensor senses a second scattered light intensity of the laser beam outputted from the analyzer.

Abstract: A sputtering system is suitable for sputtering a surface to be sputtered having sections. Each section has a projection height. The sputtering system includes a supporting plate, a sputtering array, and a controller. The sputtering array is arranged on the supporting plate. The sputtering array includes sputtering units. Each section corresponds to at least one of the sputtering units. Each sputtering unit has a driving shaft and a target. The target faces the surface to be sputtered. The controller is electrically connected the driving shaft. The driving shaft drives the target to move relative to the surface to be sputtered. The controller controls a distance between each sputtering unit and the corresponding section of the sections in the direction of the projection height to satisfy a given condition.

Abstract: An embedded touch panel display device includes: a display unit having a display surface and a non-display surface opposite to the display surface; a touch-control unit disposed inside the display unit; a conductive frame disposed on one side of the display unit and facing the non-display surface thereof; an insulating ink and a first conductive ink disposed on at least one sidewall of the display unit and extended to the non-display surface, in which the first conductive ink overlaps the insulating ink; and a double-sided adhesive disposed between the display unit and the conductive frame to secure them. The first conductive ink and the conductive frame are electrically connected to each other to form an electrostatic discharge path. The present invention can prevent the peripheral area of the viewed area from a blackening phenomenon induced by excessively high electrostatic voltage.

Abstract: A light emitting diode includes a light emitting portion, a first electrode, a first reflecting portion, and a second electrode. The first reflecting portion includes conductive material. The first electrode is in electrical contact with the first reflecting portion. The second electrode is electrically connected to the light emitting portion. The first electrode and the second electrode receive different driving voltages and apply the driving voltage to the light emitting portion to drive the light emitting portion to emit light, the first reflecting portion being configured to reflect the light from the light emitting portion.

Abstract: An in-car safety system includes: a detecting device, a processor, an in-car equipment and a piezoelectric device. The detecting device is disposed on a car. The processor is disposed in the car. The processor is electrically connected to the detecting device. The processor is configured to receive a detecting signal transmitted by the detecting device and transmit an electrical signal in accordance with the detecting signal. The in-car equipment is disposed in the car. The piezoelectric device is disposed on the in-car equipment. The piezoelectric device is electrically connected to the processor. The piezoelectric device is configured to receive the electrical signal and generate a vibration to the in-car equipment in accordance with the electrical signal.

Abstract: A method includes: transmitting an incident light to an object located on a stage, in which a first light and a second light are reflected; receiving the first light and the second light by an imaging lens group to obtain a third pattern corresponding to the first pattern and a fourth pattern corresponding to the second pattern; transmitting the third pattern and the fourth pattern to an image sensor, in which a center point of the third pattern and a center point of the fourth pattern are separated by a first distance on the image sensor; calculating a tilted angle between an optical axis of the imaging lens group and a normal direction of the stage according to the first distance; and adjusting the stage according to the tilted angle such that the normal direction is parallel to the optical axis.

Abstract: A micro light emitting diode (LED) display device includes a substrate, micro LED dies, a protection layer, and a funnel-tube structure array. The micro LED dies are located on the substrate. The protection layer covers the micro LED dies and the substrate. The funnel-tube structure array is located on the protection layer and includes funnel-tube structures. Each of the funnel-tube structures has a top surface facing away from the protection layer. The funnel-tube structures respectively overlap the micro LED dies in a vertical direction, and widths of the funnel-tube structures are gradually increased from the protection layer to the top surfaces of the funnel-tube structures.

Abstract: A method for preparing a piezoelectric film includes: coating a solution containing a piezoelectric polymer and a solvent on a substrate to obtain a film, wherein the piezoelectric polymer is a copolymer of vinylidene fluoride and trifluoroethylene; and annealing the film at a temperature ranging from 122° C. to 133° C., to obtain the piezoelectric film.

Abstract: A curved optic structure includes an optic film, a polarizer and a liquid crystal compensation film. The optic film includes a light incident side and a light exit side. The optic film has a curved surface on the light exit side. The polarizer is conformally attached on the curved surface. The liquid crystal compensation film is disposed at the light exit side of the optic film. The polarizer is located between the optic film and the liquid crystal compensation film. The liquid crystal compensation film includes a liquid crystal layer and a power supply. The liquid crystal layer includes a plurality of liquid crystals inside. The power supply is connected to a first side surface and an opposite second side surface of the liquid crystal layer.

Abstract: A plurality of package units is on a surface of a substrate, and a driving circuit is on the surface of the substrate. Each package unit includes at least one pixel, and each pixel is provided with a plurality of light-emitting elements. The driving circuit electrically connects to the light-emitting elements and is configured to transmit a plurality of gate driving signals and a plurality of data signals to drive the plurality of light-emitting elements to emit light to display images. The driving circuit is partially in the package units and is partially between adjacent package units. The substrate and a portion of the driving circuit between adjacent package units are made to be stretchable, while the package units are not stretchable.

Abstract: A removable adhesive member and a display device using the same is provided. The removable adhesive member includes a first adhesive section, a first connecting section, and a tearing portion. The two opposite surfaces of the first adhesive section respectively adhere to the two objects. The first connecting section is connected to the first adhesive section. The first connecting section includes a first adhesive layer and two first protective layers. One side of the first adhesive section extends to form the first adhesive layer. The first protective layers are respectively laminated to two opposite surfaces of the first adhesive layer. The tearing portion is connected to the first adhesive section through the first connecting section, thereby avoiding rupture in pulling the tearing portion. The tearing portion is conveniently pulled up by a user, such that the first adhesive section removes from the objects to disassemble the objects.

Abstract: A display device includes a light source, a waveguide element, a liquid crystal coupler, a first holographic optical element and a second holographic optical element. The light source is configured to emit light. The waveguide element is located above the light source. The liquid crystal coupler is located between the waveguide element and the light source. The first holographic optical element is located on a top surface of the waveguide element, in which the liquid crystal coupler is configured to change an incident angle that the light emits to the first holographic optical element. The second holographic optical element is located on the top surface of the waveguide element, and there is a first distance in a horizontal direction between the first holographic optical element and the second holographic optical element, in which the second holographic optical element is configured to diffract the light to the waveguide element below.

Abstract: A tensile electronic module and electronic device using the same are provided. The tensile electronic module includes two electrical components and a stretchable trace connected between the two electrical components. The stretchable trace includes two arcs and at least three circular segments. The circular segments are connected to each other and have at least two various central angles. Each of the arcs is configured at one end of the circular segments for respectively connecting with one of the electrical components. The tensile electronic module proposed in the invention achieves to reduce tensile stress of the stretchable trace in multiple directions and can be further applied to an electronic device which is stretchable or having a curved surface. Damages caused by stress accumulation when the stretchable trace is stretched in different directions are therefore avoided. Therefore, it is believed reliability and service life of the electronic device are greatly improved.