A display device is disclosed that includes a plurality of pixels and a plurality of code pixels. The pixels include light-emitting elements, which display an image. The code pixels are disposed in the same layer as the pixels and are adjacent to a reference point disposed between the pixels. The code pixels include infrared light-emitting elements, which emit infrared light. At least one of the code pixels, disposed in a particular direction from the reference point, emit the infrared light to provide a code pattern having position information.

A digital pen systems and methods are provided. The digital pen comprises an internal pen module comprising a cartridge and a pressure sensor, a body housing the internal pen module, and a shuttle connected to the internal pen module on a first end of the digital pen and connected to a twist mechanism on a second end of the digital pen. The shuttle moves the cartridge and the pressure sensor when the twist mechanism is engaged.

Examples disclosed herein involve calibrating an input device to a display using the input device. An example method includes determining first coordinates of a position-encoded film corresponding to a location of an input device relative to the position-encoded film of a display of a computing device based on first position points of the position-encoded film, determining second coordinates of a pixel array corresponding to the location of the input device relative to the pixel array of the display based on a first reference pixel of the display, measuring a first offset between the first coordinates of the position-encoded film and the second coordinates of the pixel array, and calculating a calibration transformation to control the computing device based on the first offset.

A smart pen including: a body part; a nib part at an end of the body part; a code detection unit for receiving light reflected from a display panel and the nib part, wherein the light reflected from the display panel and the nib part is used to detect shape data for code patterns of the display panel; and a code processor for generating coordinate data based on the shape data and transmitting the coordinate data to a main processor for driving the display panel based on the coordinate data.

A coordinate calibrating method includes the steps of: (1) reading paper coordinates by adopting two OID sensors, comparing the coordinates read by the two OID sensors with pre-designed coordinates of paper to obtain coordinate deviation of positions of the two OID sensors, and according to the coordinate deviation, calculating an inclination angle value θ generated by the coordinates of the two OID sensors; and (2) according to the coordinate deviation and the inclination angle value, calibrating an actually read coordinate position of a pen by selecting the second OID sensor as a reference point, translating horizontally and vertically coordinates of the pen to be corrected first, and then rotating the coordinates by the angle θ with reference to the second OID sensor, so that the positions of the two OID sensors coincide with pre-designed standard positions, and the coordinate position of the pen is calibrated.

In an information processing apparatus (10a), a light emission control unit (34a) turns on IR LEDs (13) (light emission units) included in electronic pens (12) (operation bodies) in which communication with the information processing apparatus (10a) is established and blinks the IR LEDs (13) included in the electronic pens at timings different from each other in a case where another electronic pen (12) approaches. Then, a light emission recognition unit (32) (detection unit) detects a position according to the IR LED (13) included in each of the electronic pens (12) in association with the electronic pen (12). An input/output control unit (36) (display control unit) displays information associated with the electronic pen (12) at a position corresponding to the IR LED (13) detected by the light emission recognition unit in a case where the electronic pen (12) is in an information input state.

A display device includes a display layer, a plurality of touch electrodes, a light shield, and a code pattern. The display layer includes a plurality of light emission areas for emitting light. The plurality of touch electrodes are disposed on the display layer to sense a touch and surround the plurality of light emission areas. The light-shield is disposed on a portion of the plurality of touch electrodes. The code pattern is determined by a planar shape of the light-shield to have position information. The light-shield absorbs light of a specific wavelength, and another portion of the touch electrodes, which is not overlapped with the light-shield, reflects light of the specific wavelength.

A display panel includes a plurality of emission areas emitting light and a light blocking area at least partially surrounding the plurality of emission areas, a plurality of touch electrodes disposed in the light blocking area on the display panel to sense a touch, a wavelength absorption layer disposed on the plurality of touch electrodes to absorb light of a specific wavelength, a bridge electrode disposed on the wavelength absorption layer to connect adjacent touch electrodes among the plurality of touch electrodes to each other, and a code pattern having position information determined by a planar shape of the bridge electrode.

Systems and methods for a wireless controller are provided. The wireless controller includes an enclosure having a top and a bottom, each having a substantially circular perimeter, and a side having a height circumferentially around the perimeter of the top and the bottom. A first sensor is configured to detect movement of the enclosure. A processor is coupled to the first sensor and configured to process signals from the first sensor and to send command signals via a wireless interface based at least upon the signals from the first sensor.

The present invention provides a dot film, a multi-layers optic sheet comprising the dot film, and a smart electric board having the multi-layers optic sheet attached thereto, the dot film comprising: a base layer made of a synthetic resin; a resin layer coated with a resin mixture on the rear surface of the base layer; and a dot layer on which fine dots are formed by printing such that a printing material permeates the resin layer, wherein the dot layer has a plurality of dots formed therewith which are spaced apart from each other at crossing points of virtual grid lines, and has location information encrypted therein so as to determine location information of an electronic pen when writing with the electronic pen. According to the present invention, the optic sheet has a thinned thickness, a minimized possibility of an inflow of particles between layers in the production process, and a low reflectance and scattering rate, and thus has an excellent reactivity and recognition rate for the electronic pen, and UV printing is possible as well as the printing of inkjet and laser printers etc., the production cost thereof is low, and there is an effect of easily permeating and printing printed material.