A projector includes a projection unit, an external I/F, an image I/F, a connection detecting unit, a manipulation detecting unit, and an instruction information generation unit. The connection detecting unit detects connection in the external I/F and the image I/F. The manipulation detecting unit causes the projection unit to project a detecting image when connection is detected and detects a manipulation performed with respect to the detecting image. The instruction information generation unit executes processing which is based on the detected manipulation.

An add-on touch device and the sensing module combination is presented. The add-on touch device has at least a sensing module and a plurality of fixing modules. The sensing module and the plurality of fixing modules are disposed on the four edges of a display and connected by at least a reflective connector for forming a touch area corresponding to a display area of the display. The touch area covers the display area, so that the sensing module can sense the position in the display area touched by a user in the touch area. The length of the reflective connector of the add-on touch device is adjusted according to the sum of the distances between the sensing module and the plurality of fixing modules; the sum of the distances between the sensing module and the plurality of fixing modules changes according to the size of the display.

An add-on touch device and the sensing module combination is presented. The add-on touch device has at least a sensing module and a plurality of fixing modules. The sensing module and the plurality of fixing modules are disposed on the four edges of a display and connected by at least a reflective connector for forming a touch area corresponding to a display area of the display. The touch area covers the display area, so that the sensing module can sense the position in the display area touched by a user in the touch area. The length of the reflective connector of the add-on touch device is adjusted according to the sum of the distances between the sensing module and the plurality of fixing modules; the sum of the distances between the sensing module and the plurality of fixing modules changes according to the size of the display.

Provided is a wearable device including: an image sensor configured to sense a gesture image of a user setting a user input region; and a display configured to provide a virtual input interface corresponding to the set user input region.

A spatial image display touch device includes an imaging element, a display, an optical film and a sensor unit. The imaging element and the display are retained in a housing and inclined to each other. The display generates an image light passing through the imaging element to form a spatial image. The optical film, composed of a plurality of micro-grids arranged in a matrix, is attached on the display. The sensor unit is mounted in the housing to detect an object appearing at the position wherein the spatial image is displayed. By arranging the optical film in front of the display, only the spatial image is visible and the problem of ghost images is avoided.

A highly convenient display system is provided. A display system that enables a screen to be operated easily with a laser pointer is provided. A display system that enables a screen to be operated by a large number of people is provided. The display system includes a light-emitting apparatus and a display device. The light-emitting apparatus includes a means for emitting visible laser light and a means for emitting invisible light. The display device includes a display unit including a means for displaying an image and a means for obtaining positional information on a portion irradiated with the visible light, and a means for receiving the invisible light. The display system has a function of performing processing in accordance with the positional information when the invisible light is received.

A liquid crystal writing apparatus and corresponding method for implementing local erasure by using light, the apparatus includes: a conductive layer, a bistable liquid crystal layer, and a base layer that are sequentially arranged. The base layer is integrated with: a plurality of erasing units arranged in an array, where an erasing electrode and a thin film transistor (TFT) connected to the erasing electrode are disposed in each erasing unit; at least one first conducting wire configured to supply a control voltage to gate of each TFT; and at least one second conducting wire configured to supply an input voltage to source of each TFT, where the TFT is configured to be in a critical cut off state, and then be turned on by receiving light of a set intensity, to input a set voltage to a corresponding erasing electrode.

A liquid crystal writing apparatus and corresponding method for implementing local erasure by using light, the apparatus includes: a conductive layer, a bistable liquid crystal layer, and a base layer that are sequentially arranged. The base layer is integrated with: a plurality of erasing units arranged in an array, where an erasing electrode and a thin film transistor (TFT) connected to the erasing electrode are disposed in each erasing unit; at least one first conducting wire configured to supply a control voltage to gate of each TFT; and at least one second conducting wire configured to supply an input voltage to source of each TFT, where the TFT is configured to be in a critical cut off state, and then be turned on by receiving light of a set intensity, to input a set voltage to a corresponding erasing electrode.

A detection device is provided and includes insulating substrate; detection element including first photodiode, thin film transistors including a first thin film transistor; non-detection element including second photodiode and first thin film transistor; reset control scan line; first reset signal line; and second reset signal line, wherein reset control scan line is coupled to two gates of first thin film transistor of detection element and two gates of first thin film transistor of non-detection element, first reset signal line is coupled to a source of first thin film transistor of detection element, and second reset signal line is coupled to a source of first thin film transistor of non-detection element.

Pressure-sensing touch systems and methods are disclosed for sensing the occurrence of a touch event based on pressure applied at a touch location. The touch system includes a light-source system and a detector system operably adjacent respective input and output edges of a waveguide. Pressure at a touch location on the waveguide gives rise to a touch event causes the waveguide to bend or flex. The waveguide bending causes a change in the optical paths of light traveling by FTIR, causing the light distribution in the output light to change. The changes are detected and are used to determine whether a touch event occurred, as well as the time-evolution of the touch event. The changes in the output light can include polarization changes caused by birefringence induced in the waveguide by the applied pressure applied. Various detector configurations are disclosed for sensing the location and pressure of a touch event.