A display control apparatus includes: a display control unit configured to perform control so as to display a target image; a determining unit configured to determine whether or not the target image is an image having a dynamic range that is wider than a predetermined range; an acquiring unit configured to acquires setting information related to whether or not a predetermined setting for displaying an image having a dynamic range that is wider than the predetermined range with a dynamic range that is wider than the predetermined range is valid; and a notification control unit configured to perform control such that, in a case where the target image is an image having a dynamic range that is wider than the predetermined range, a notification is performed with respect to whether or not the target image is being displayed with a dynamic range that is wider than the predetermined range.

Provided are a backlight unit and a liquid crystal display device including the backlight unit, the backlight unit being capable of switching between viewing angles in the liquid crystal display device and having a configuration in which the brightness values of emitted light on the “+” side and the “−” side at a polar angle with respect to the normal line are symmetric to each other. The backlight unit includes: a light guide plate; a first light source that guides light into the light guide plate from a long side or a short side of the light guide plate; a second light source that guides light into the light guide plate from a side of the light guide plate different from that of the first light source; a first diffraction element that is provided on one main surface of the light guide plate and diffracts only light emitted from one of the first light source or the second light source; a second diffraction element that is provided on another main surface of the light guide plate and diffracts only light emitted from another one of the first light source or the second light source; and a reflection plate that is provided on a surface of the light guide plate opposite to a light emission surface.

A display apparatus according to an embodiment of the present disclosure includes: a display panel including a plurality of pixels; and a drive device that outputs a driving signal to the display panel. The driving signal causes one of the pixels to emit light many times by an active PWM drive method in a 1-frame period.

Visual safety is ensured when image switching takes place.

When an image is switched by nonlinear reproduction, a display property is kept switched, during a transition display period, to a transition display property with a brightness level kept lower than a normal level, on the basis of pixel statistical information regarding the image. For example, an electro-optic conversion property is controlled to a transition property or the brightness level of a backlight is suppressed.

When an instruction from the user is received or when an event occurs and the head mounted processing apparatus is terminated, a key content pair information register is configured to associate a state of content at the time of the event occurrence with a registration key obtained from an image of a camera at the time of the event occurrence to store them in a memory as key content pair information. When the head mounted processing apparatus is activated, a key content pair restorer is configured to determine whether an image of the camera at the time of apparatus activation is made conformity with the registration key or not on the basis of the key content pair information, and restore the state of the content corresponding to the registration key made conformity with the image in a case where the image is made conformity with the registration key.

There are provided an image display device, a display control method, and a cradle that are capable of adjusting display image quality with a simple configuration. An image display device according to the present embodiment includes a tablet terminal having a display, a cradle holding the tablet terminal, and an optical sensor provided on the cradle and capable of receiving display light from the display.

An image processing device includes a memory that stores instructions, and a processor that, when executing the instructions stored in the memory, performs a process. The process includes: averaging an input image in units of N×M pixels (N, M: an integer of 2 or larger) in a spatial direction for each grid composed of one pixel or a plurality of pixels, the input image being composed of (S×T) pixels (S, T: a positive integer) having an information amount of a (a: a power of 2) bits per pixel, and defining an averaging result in units of N×M pixels for each pixel or grid by an information amount of (a+b) bits per pixel (b: an integer of 2 or larger) and generating a reduced image composed of (S×T)/(N×M) pixels having the information amount of (a+b) bits per pixel. A value of b is an exponent c (c: a positive integer) of a power value of 2 close to (N×M), or (c+1).

A video input interface receives video data on which a known character is to be drawn. A memory stores reference graphic data describing the known character. A visibility detector checks the visibility of the known character drawn on the video data based on the reference graphic data.

A video input interface receives video data on which a known character is to be drawn. A memory stores reference graphic data describing the known character. A visibility detector checks the visibility of the known character drawn on the video data based on the reference graphic data.

A video input interface receives video data. An OSD circuit draws an on screen display (OSD) character on the video data. The visibility detector checks whether the visibility of the OSD character is good or poor. A determination criterion for the visibility dynamically changes in a manner that depends on a background of the OSD character.