7 results about "Optical membrane" patented technology

Provided is an optical film requirement that does not use fine particles for light diffusion, is entirely composed of a transparent resin, and has a self-moire pattern that cannot be visually recognized by the naked eye, said optical film requirement having high front brightness without luminance unevenness on the light emission surface of a backlight when mounted on an edge-light backlight. A light-collecting auxiliary film inserted between the light emission surface of a light guide plate and the light incidence surface of a brightness enhancement film (BEF) in an edge-light backlight unit using discrete LED point light sources, the light-collecting auxiliary film being characterized by comprising: an optical waveguide layer comprising a light-transmitting base film, and a light-collecting layer comprising a light-transmitting base film, the light-collecting auxiliary film being interposed between the light emission surface of the light guide plate and the light incidence surface of the brightness enhancement film (BEF), the light-collecting auxiliary film being interposed between the light-emitting surface of the light guide plate and the light incidence surface of the brightness enhancement film (BEF); a light extraction layer that is formed on one surface of the optical waveguide layer and has a plurality of inverted rectangular pyramid-shaped unit recesses; and a light introduction layer formed on the other surface of the optical waveguide layer and having a plurality of unit triangular prisms extending in parallel in one direction, the light extraction layer constituting a light emission surface, and prism surfaces of the plurality of unit triangular prisms constituting the light introduction layer constituting a light incidence surface. The direction of the ridge lines of the plurality of unit recesses and the direction of the ridge lines of the plurality of unit triangular prisms intersect at an angle of 42 DEG to 48 DEG, and the light extraction layer, the optical waveguide layer, and the light introduction layer do not contain fine particles for light diffusion. The self-moire pattern generated by the plurality of unit recesses and the plurality of unit triangular prism lenses cannot be visually recognized by naked eyes.

The utility model discloses an ultrathin liquid crystal display device based on a blue light COB and a multi-partition quantum material, which comprises a liquid crystal display panel, a composite optical film, a quantum diffusion plate, a back plate, reflection paper and a light-emitting chip matrix which are sequentially attached together, the reflection paper is attached to the back plate, and the light-emitting chip matrix is installed on the surface of the reflection paper; the light-emitting chip matrix on the back plate comprises a short-distance light mixing area and a long-distance light mixing area, and the light mixing distance of the short-distance light mixing area is smaller than the light mixing distance of the long-distance light mixing area; the quantum diffusion plate is provided with a low-concentration quantum region and a high-concentration quantum region; and the quantum diffusion plate corresponds to the light-emitting chip matrix surface of the back plate. The multi-light-mixing-distance blue-light COB light source, the size-differentiated light source and dynamic backlight control are adopted, high-color-gamut expression is achieved, the brightness uniformity of the display device is improved, the color difference of a light-mixing connection band is eliminated through the concentration gradual change design of quantum dot materials, and the brightness uniformity is obviously improved.

The invention relates to the field of intelligent wearable equipment, and discloses intelligent sleeve glasses type multifunctional liquid crystal dimming glasses which comprise a glasses frame, glasses legs are fixedly connected to the two sides of the glasses frame, a color adjusting assembly is fixedly connected to the outer portion of the glasses frame, a shell is fixedly connected to the outer portions of the glasses legs, and an interaction assembly is installed in the shell. The shell is used for communicating with a mobile terminal APP and customizing the light transmittance, and a modularized light color self-adaption and audio enhancement integrated system is installed in the shell. The light color sensing module is arranged to collect ambient light intensity and spectral information in real time, a multi-layer color adjusting assembly composed of a red dye liquid crystal layer, a blue dye liquid crystal layer and a neutral gray light reducing film is combined, and a light color compensation algorithm integrated in the central processing module is used for cooperative operation. The driving voltage of the three layers of optical films can be dynamically adjusted according to specific color temperature characteristics of ambient light and user setting, so that color cast is compensated while brightness is adjusted.

The utility model discloses a kind of double-sided light type backlight module, comprising: backplate;Two groups of LED light bar are oppositely arranged in two inner side walls of backplate;Reflective sheet, light guide plate and optical film piece are sequentially placed in backplate and between two groups of LED light bar;Reflective sheet, light guide plate and optical film piece are centrally arranged between two groups of LED light bar.The utility model can make the light emitted by two groups of LED light bar evenly reflect via reflective sheet, then emit via light guide plate and optical film piece, so as to realize the uniform light emission of backlight module, to ensure the display quality of liquid crystal display.

The utility model discloses a liquid crystal display module, include: from below to above set gradually lamp plate, reflector, diffusion plate, optical film piece and panel, there are a plurality of lamp pearl in matrix distribution on the lamp plate, the reflector includes reflector body, a plurality of reflection cup and frame, and the opposite both ends of reflector body are used for fixedly setting lamp plate and diffusion plate respectively, a plurality of reflection cup is in matrix distribution in reflector body and penetrates the opposite both ends of reflector body, and the number of reflection cup and lamp pearl is equal and position one -to -one correspondence, and lamp pearl is set in its corresponding reflection cup, frame is fixed in the circumferential side of reflector body, and frame fixedly surrounds in the circumferential side of diffusion plate and optical film piece, and panel is fixed on the frame, the reflector of the utility model can replace the function of backboard and glue frame in traditional liquid crystal display module, to make the reflector have backboard, reflector and glue frame triple function, be favorable to the structure of liquid crystal display module and production technology are simplified, and reach the requirement of light and clever.

The objective of this invention is to provide a light-absorbing anisotropic film, optical film, and liquid crystal display device that exhibits low defects and high orientation even at high concentrations of dichroic substances. The light-absorbing anisotropic film of this invention is formed from a liquid crystal composition containing a liquid crystal compound and a dichroic substance. The total mass of the dichroic substance represented by formula (C-1) and the dichroic substance represented by formula (C-2) is 4.5% by mass or more relative to the total solid content of the liquid crystal composition. The liquid crystal compound is vertically oriented. In R... a1 With R a2 When the groups are the same, -N(R) b11 (R) b12 ) and -N(R b21 (R) b22 ) represent different groups. In R a1 With R a2 In the case of different groups, -N(R) b11 (R) b12 ) and -N(R b21 (R) b22 () can be the same group or different groups.