Patent application number | Description | Published |
20110168670 | Patterned Sapphire Substrate Manufacturing Method - A patterned sapphire substrate manufacturing method uses two-section dip etching procedure to improve the lateral etching rate at each etching position, so as to produce a concave-convex pattern composed of a plurality of triangular pyramid structures protruded from a surface onto an upper surface of a sapphire substrate, such that less planar area of the sapphire substrate surface will remain, and a mixed solution of sulfuric acid and phosphoric acid is used in a first dip etching step, and pure phosphoric acid or a mixed solution of sulfuric acid and phosphoric acid is used in a second dip etching step for etching the sapphire substrate to control the inclination of each triangular pyramid structure precisely, and providing a better light extraction rate for later manufactured light emitting diodes. | 07-14-2011 |
20120273821 | METHOD FOR PATTERNING AN EPITAXIAL SUBSTRATE, A LIGHT EMITTING DIODE AND A METHOD FOR FORMING A LIGHT EMITTING DIODE - A method for patterning an epitaxial substrate includes: (a) forming an etch mask layer over an epitaxial substrate, and patterning the etch mask layer using a patterned cover mask layer to form the etch mask layer into a plurality of spaced apart mask patterns; and (b) etching the epitaxial substrate that is exposed from the mask patterns, and removing the mask patterns such that the epitaxial substrate is formed with a plurality of spaced apart substrate patterns. | 11-01-2012 |
20120305965 | LIGHT EMITTING DIODE SUBSTRATE AND LIGHT EMITTING DIODE - A light emitting diode (LED) substrate includes a sapphire substrate which is characterized by having a surface consisting of irregular hexagonal pyramid structures, wherein a pitch of the irregular hexagonal pyramid structure is less than 10 μm. A symmetrical cross-sectional plane of each of the irregular hexagonal pyramid structures has a first base angle and a second base angle, wherein the second base angle is larger than the first base angle, and the second base angle is 50° to 70°. This LED substrate has high light-emitting efficiency. | 12-06-2012 |
Patent application number | Description | Published |
20130169790 | OPTICAL CHARACTERISTICS CAPTURING APPARATUS AND METHOD FOR INSPECTING OPTICAL CHARACTERISTICS OF A FLEXIBLE DISPLAY - An optical characteristics capturing apparatus includes an adjustable stage for carrying the flexible display, an image capturing device disposed above the adjustable stage, and two first collimated light sources. A part of the flexible display forms a curved surface. An intersection of a receiving optical axis of the image capturing device and the curved surface of the flexible display is an intersection point. The two first collimated light sources project two dot-patterns onto the intersection point along two first optical paths having identical length but different extending directions. An included angle between each of the two first optical paths and the receiving optical axis is an acute angle. The two first optical paths and the receiving optical axis are located in a first virtual plane. | 07-04-2013 |
20140192035 | PIXEL CIRCUIT, ACTIVE SENSING ARRAY, SENSING DEVICE AND DRIVING METHOD THEREOF - A pixel circuit, an active sensing array, a sensing device, and a driving method thereof are provided. The pixel circuit includes a sensing transistor, a reset transistor, and a storage capacitor. The sensing transistor is electrically connected to a sensing element and a data line. The reset transistor is electrically connected to a first scan line and the sensing transistor. The storage capacitor is electrically connected to the sensing transistor and a second scan line. During a compensation period, the reset transistor is turned on in response to a first scanning pulse from the first scan line, so that the sensing transistor is connected into a diode configuration, and the storage capacitor charges and discharges to a threshold voltage of the sensing transistor through the sensing transistor having the diode configuration in response to switching of a level of the data line. | 07-10-2014 |
20150227258 | TOUCH DEVICE, PROCESSOR AND TOUCH SIGNAL ACCESSING METHOD THEREOF - A touch device, a processor and a touch signal accessing method thereof are provided. The touch signal accessing method of the touch device includes the following steps. A current touch point is received. Whether a spatial continuity is smaller than a spatial threshold, and a time continuity is smaller than a time threshold are determined. If the spatial continuity is smaller than the space threshold and the time continuity is smaller than the time threshold, then the current touch point is added to a temporary touch point set and a count value is accumulated. Whether the current touch point is a significance point is determined. If the current touch point is the significance point, a touch point reporting procedure is performed. | 08-13-2015 |