Provided are a button, a display device, a shower control device and a control method thereof. The display device displays a first parameter represented by a number and comprises seven display sections that form a rectangular divided by horizontal bars to display characters. The seven display sections are horizontally arranged display sections a, g, d from top to bottom, respectively, and are vertically arranged display sections f, b, e, c respectively, wherein the display sections f, b, e, c are arranged at the upper left, upper right, lower left and lower right of the display section g, respectively. The display device is further used for displaying a second parameter represented by a progress bar.

Provided are a button, a display device, a shower control device and a control method thereof. The display device displays a first parameter represented by a number and comprises seven display sections that form a rectangular divided by horizontal bars to display characters. The seven display sections are horizontally arranged display sections a, g, d from top to bottom, respectively, and are vertically arranged display sections f, b, e, c respectively, wherein the display sections f, b, e, c are arranged at the upper left, upper right, lower left and lower right of the display section g, respectively. The display device is further used for displaying a second parameter represented by a progress bar.

An electronic device is described. The electronic device may include a housing, a rotatable crown, and a self-mixing interferometry (SMI) sensor positioned within the housing. The rotatable crown may include an array of retroreflective surface features that reflect incident light back to a light source. Each retroreflective surface feature of the array of retroreflective surface features may be formed as a corner-cube with three perpendicular faces. The SMI sensor or associated processing electronics may compare originally emitted light with reflected light to identify a movement or distance of the rotatable crown with respect to the SMI sensor.

An electronic device is described. The electronic device may include a housing, a rotatable crown, and a self-mixing interferometry (SMI) sensor positioned within the housing. The rotatable crown may include an array of retroreflective surface features that reflect incident light back to a light source. Each retroreflective surface feature of the array of retroreflective surface features may be formed as a corner-cube with three perpendicular faces. The SMI sensor or associated processing electronics may compare originally emitted light with reflected light to identify a movement or distance of the rotatable crown with respect to the SMI sensor.

Embodiments of the invention are related to a system and method of controlling a display of image stream. The system may include a memory to store the image stream; the image stream may comprise a plurality of image frames. The system may further include a processor configured to execute the method. The moving image stream may be displayed to a user in an image stream display area of a screen and a frame rate control interface may be generated on a speed control area of the screen, such that the image stream display area is horizontally adjacent to the speed control area. An indication of a desired frame rate for displaying the image stream of the image frames may be received from the user, in that the frame rate may be selected according to a location of a pointing indicator in the speed control area.

A knob includes a first assembly and a second assembly. The first assembly includes a first sensing element. The second assembly is sleeved at the first assembly and includes a second sensing element. The first sensing element is configured to, when the second assembly rotates around a rotation axis, be fixed relative to the rotation axis. The second sensing element is configured to, when the second assembly rotates around the rotation axis, move around the rotation axis.

Provided is a chart display device for partially confirming a chart. In an example, the chart display device includes a display configured to display the chart on a screen, and detect a touched position of the screen. The chart display device includes processing circuitry configured to determine whether an operation auxiliary tool having detected elements to be detected based on the touched position is placed on the screen, specify a corresponding area corresponding to the operation auxiliary tool in the chart based on the position of the detected elements, and receive an operation for the corresponding area in the chart.

The present invention relates to an input device. The input device includes a circuit board, a wheel, a supporting frame, a push button switch and a tilt switch. The wheel has a rotary shaft. The supporting frame includes a body, an extension arm, a first and a second supporting portion. The wheel is pivotally connected to the body by the rotary shaft. The extension arm is disposed at the side edge of the body. The first and second supporting portion are connected to the body, where the second supporting portion is disposed between the rotary shaft and the first supporting portion. The push button switch is corresponding to the body. When the wheel is pressed, the body is driven to trigger the push button switch. The tilt switch is corresponding to the extension arm. When the wheel tilts, the extension arm is driven to trigger the tilt switch.

An optical processing apparatus and a light source luminance adjustment method adapted to detect a rotational displacement and a pressing state are provided. The optical processing apparatus includes a light source unit, a processing unit, and an image sensing unit, wherein the processing unit is electrically connected to the light source unit and the image sensing unit. The light source unit provides a beam of light. The processing unit defines a frame rate, defines a plurality of time instants within a time interval, and sets the light source unit to a luminance value at each of the time instants. A length of the time interval is shorter than the reciprocal of the frame rate. The luminance values are different and are within a range. The image sensing unit captures an image by an exposure time length at each of the time instants, wherein the exposure time lengths are the same.

An optical processing apparatus and a light source luminance adjustment method adapted to detect a rotational displacement and a pressing state are provided. The optical processing apparatus includes a light source unit, a processing unit, and an image sensing unit, wherein the processing unit is electrically connected to the light source unit and the image sensing unit. The light source unit provides a beam of light. The processing unit defines a frame rate, defines a plurality of time instants within a time interval, and sets the light source unit to a luminance value at each of the time instants. A length of the time interval is shorter than the reciprocal of the frame rate. The luminance values are different and are within a range. The image sensing unit captures an image by an exposure time length at each of the time instants, wherein the exposure time lengths are the same.