A component rack for a display that includes: a frame, that includes: a base, a first wall, and a second wall arranged to form a U-shaped cavity; and a plurality of component modules located within the cavity and adapted to be coupled to the frame, wherein the frame and an inboard side of each of the plurality of component modules define an electronics chamber region, wherein the frame is adapted to carry modular electronic devices.

It is made possible to correct a positional gap between an optical system and an eye of an observer appropriately. Based on an eyeball position of the eye of the observer, a positional relationship between the optical system, which leads an image displayed on a display element to the eye of the observer, and the eye of the observer, that is, a positional gap therebetween is detected. Based on the positional relationship detected in such a manner, the positional relationship between the optical system and the eye of the observer is corrected. For example, the positional gap is electronically corrected by performing shift control of a position of the image displayed on the display element. Also, for example, the positional gap is mechanically corrected by performing shift control of the optical system including the display element.

A projector includes a DMD that forms an image, a projection lens that projects the image formed by the DMD on a projected surface, and a display control unit that controls an image forming operation of the DMD. The display control unit forms a frame image by sequentially forming a plurality of images using a combined pixel which is configured of a plurality of pixels, and with respect to temporally continuous two images, the display control unit forms one image at a position that is shifted by a distance that corresponds to the pixel pitch of the DMD in a predetermined direction relative to the other image.

A display control apparatus which projects and displays at least one image on a screen, converts a frame frequency for a display of the at least one image to N times (N>1), generates an added image by adding a predetermined pattern to the converted frame and a subtracted image by subtracting the predetermined pattern from the converted frame as a first frame and a second frame following the first frame, projects the generated first frame and the second frame for an image on the screen at the N-times frequency, acquires the image projected on the screen, extracts the pattern from the acquired image, and corrects a shape of the image based on the extracted pattern.

If the frames of a pair of eyeglasses have a built-in sensor, replacement of the sensor may result in increased effort, cost, and the like. Accordingly, the object is to provide a control device enabling a user to replace the sensor easily. A control device, including: a connecting unit that includes a sensor; and a main unit including a first control unit that conducts processes regarding information obtained from the sensor. The connecting unit is removably connected to each of the main unit and an object mounted on a head of a human body.

A virtual reality system and a method of controlling working state of the virtual reality system. The virtual reality system comprises a video playing device and a virtual reality glasses box, and the virtual reality glasses box utilizes a screen of the video playing device to play a video content, the method comprises: establishing a wired or wireless connection between the video playing device and the virtual reality glasses box; when the video playing device is placed in the virtual reality glasses box, transmitting information of wearing state of the virtual reality glasses box to the video playing device; and controlling a playing state of the video playing device according to the wearing state of the virtual reality glasses box. The present disclosure controls the working state of the virtual reality device by the action of the user operating the device itself, and the user does not need to employ tedious and complicated operations to control each of the devices, which increases usability, and improves user experience.

A display device is disclosed. The display device includes a display panel, a transparent back cover positioned at a rear of the display panel, a side frame positioned at a side of the display panel or the transparent back cover, and a cable electrically connected to the display panel and extended along the side frame.

A head-mounted display apparatus (1) includes an image display part (10) configured to display an image, an optical unit (20, 30, 50) configured to lead the image to an eye of a wearer of the display apparatus (1), a light intensity detector (60) configured to detect light intensity (A) of external light, a dimmer filter (40) configured to vary transmittance to adjust the intensity (B) of the external light reaching the eye of the wearer, and a controller (70) configured to adjust the transmittance of the dimmer filter (40) and the light intensity (C) of a light source of the image display part (10) based on the light intensity (A) of the external light obtained by the light intensity detector (60).

A display apparatus includes a display panel, a variable member to vary a shape of the display panel, the variable member including at least a first part and a second part that are discontiguous, and a drive unit to provide energy required to vary a separation distance between the first part and the second part.

A display apparatus includes a display panel, a variable member to vary a shape of the display panel, the variable member including at least a first part and a second part that are discontiguous, and a drive unit to provide energy required to vary a separation distance between the first part and the second part.