A display device of the disclosure includes: a display panel; a decorative member that holds the display panel; and a light guide plate that has rigidity and includes an edge surface attached to the decorative member.

The liquid crystal display device includes, sequentially from a viewing surface side to a back surface side: a linearly polarizing plate and a circularly polarizing plate including a first λ/4 retardation layer; a thin-film transistor substrate including a pair of electrodes disposed in a pixel region and a metal line disposed outside the pixel region; a liquid crystal layer containing liquid crystal molecules aligned parallel to the thin-film transistor substrate, alignment of the liquid crystal molecules varying in response to an electric field generated by application of voltage to the pair of electrodes; a color filter substrate including a color filter layer; and a backlight, the thin-film transistor substrate including a second λ/4 retardation layer, the color filter substrate including a reflective layer disposed outside the pixel region and configured to reflect incident light from the backlight toward the back surface.

A display system in an embodiment according to the present invention includes a display panel, a backlight located at a back surface side of the display panel and that emits light toward the display panel, a reflective panel located at a front surface side of the display panel and having a light receiving surface inclined obliquely in a direction perpendicular to an optical axis of the backlight, and a magnifying mirror disposed at a position where a reflected light from the reflective panel is received. The reflective panel includes a reflection region and a transmission region in the light receiving surface, and a position and a size of the reflection region and the transmission region are variable.

A wire grid polarizing plate (10) has a substrate (11) having a concavo-convex structure extending in a particular direction on its surface, and a conductive material (12) provided to be distributed on one side surface (11b) of a convex portion (11a) of the concavo-convex structure. Further, in the wire grid polarizing plate (10), in a cross-sectional view in the perpendicular direction to the extension direction of the concavo-convex structure, a pitch P1 that is a distance between two adjacent convex portions (11a) is set at 120 nm or less, and a convex-portion height (H) that is a difference in height between a highest portion (11c) of the convex portion (11a) and a lowest portion (11e) of a concave portion (11d) is set at 0.8 time to 1.3 time the pitch P1. With the wire grid polarizing plate (10) in a liquid crystal display device, high image quality can be achieved.

The present invention provides a touch LCM comprising an array substrate and a color film substrate provided opposite to each other, wherein an optical film set is provided at a side of the color film substrate away from the array substrate, comprising a touch signal feedback layer, a touch signal receiving layer and an upper polarizer film provided there between. With the design of integrating the upper polarizer film, the touch signal feedback layer and the touch signal receiving layer into the optical film set, the optical film set has both the polarizing function in the conventional sense and the function of touch electrode.

There is provided an image display device that includes a display in which a background is transparently seen from a front surface side, and has a high degree of freedom at the time of installation. A liquid crystal panel (32) for adjusting transparency/light-emission adjusts, for each pixel, a ratio between transmitted light-source light and ambient light by respectively controlling a polarization direction of a reflected polarization component of the light-source light irradiated to a reflection-type polarization plate (20) from a light guide plate (180) and a polarization direction of a transmitted polarization component of the ambient light incident to the reflection-type polarization plate (20) from a rear surface side of the display, based on transparent/light-emitting pixel information. Accordingly, when the image display device is viewed from the front surface side of the display, an image is seen for each pixel, a background is transparently seen, or the background is seen so as to be superimposed on the image. Since it is not necessary to attach the image display device to a case filled with light, the image display device is widely used without limitation of use.

A hybrid polarizer includes an absorbing element having a first major surface and a second major surface. The hybrid polarizer also includes a first birefringent reflective polarizer disposed on the first major surface of the absorbing element, the first birefringent reflective polarizer having a first pass axis and a first block axis. The hybrid polarizer further includes a second birefringent reflective polarizer disposed on the second major surface of the absorbing element, the second reflective polarizer having a second pass axis and a second block axis.

The present application relates to a polarization conversion element and an optical isolation device. The present application provides a polarization conversion element capable of converting unpolarized incident light into one polarized light and an optical isolation device with an excellent optical isolation ratio comprising the polarization conversion element. Such an optical isolation device can be applied to various applications such as the field of optical communication or laser optics, the field of security or privacy protection, brightness enhancement of displays, or a use for hiding and covering.

In an image display device including a first display panel and a second display panel, there are provided a first panel body, a first panel body emission-side polarizing plate disposed at a front-surface side with respect to the first panel body, a second panel body, a second panel body incidence-side polarizing plate disposed at a back-surface side with respect to the second panel body, at least one inter-panel polarizing plate disposed between the first panel body and the second panel body, and a back-surface irradiation light source configured to emit light toward the back-surface side. The back-surface irradiation light source is provided in one of regions between the first panel body emission-side polarizing plate and the second panel body incidence-side polarizing plate.

A backlight for providing uniform illumination to a display panel includes a plurality of discrete light sources. A multilayer polymeric partial reflector is disposed on the plurality of discrete light sources. For substantially normally incident light the partial reflector includes a reflection band includes a blue wavelength, a reflectance greater than about 80% at the blue wavelength, a left band edge between about 370 nm to about 420 nm, a right band edge between about 500 nm and 600 nm, and an average transmission between about 20% to about 80% for visible wavelengths greater than the right band edge. A reflective polarizer is disposed on the partial reflector. For substantially normally incident light having the blue wavelength, the reflective polarizer reflects at least 60% of the light having the first polarization state and transmits at least 60% of the light having the second polarization state.