40results about How to "Improve backlight utilization" patented technology

The invention provides a display panel, which comprises an array substrate, a light emitting element and a color conversion layer. One side surface of the array substrate is provided with a thin film transistor array. The light emitting element is arranged on one side of the array substrate on which the thin film transistor array is positioned. The color conversion layer is arranged on another side, opposite to the light emitting element, of the array substrate. The color conversion layer comprises a plurality of quantum dot blocks. The display panel defines a plurality of sub-pixels used for emitting light rays with different color components. The quantum dot blocks are arranged corresponding to the sub-pixels for converting light rays emitted by the light emitting element into full-color displayed light rays with three primary color components. The invention further provides a method for manufacturing the display panel.

The invention provides a liquid crystal display. A quantum rod film is arranged between a lower polaroid and a backlight module. Backlight generated by the backlight module is absorbed firstly by a quantum rod on the quantum rod film, and then, a polarized light of which the emergent direction is same as the alignment direction of the quantum rod exits. As the alignment direction of the quantum rod is same as the polarization axis direction of the lower polaroid, the backlight penetrating through the quantum rod film can largely penetrate through the lower polaroid, light rays absorbed by the lower polaroid are reduced, light transmittance of the lower polaroid to the backlight generated by the backlight module is increased, and the utilization rate of the backlight is increased, and then, brightness of the liquid crystal display is increased.

The invention provides a patterning method of a quantum dot layer and a preparation method of a quantum dot color film. According to the patterning method of the quantum dot layer, a light resistant layer having a pattern structure serves as a shielding layer, and a single-color quantum dot layer is etched to obtain a patterned quantum dot layer. By the method, the constituents for forming quantum dot glue of the quantum dot layer are simplified, namely, the surface chemical environment of a quantum dot is simplified, and thus, the luminous efficiency of the quantum dot is improved; moreover, an exquisite quantum dot pattern can be fabricated according to the method, and the display resolution of the patterned quantum dot layer is greatly improved. The invention relates to the preparation method of the quantum dot color film. The quantum dot color film is prepared according to the above patterning method of the quantum dot layer, the prepared quantum dot color film has the exquisite quantum dot pattern, the luminous efficiency of the quantum dot is also high, and the resolution and the backlight utilization rate of a display device are further effectively improved.

The invention discloses a liquid crystal display device comprising a decoding module, a time sequence control module, a liquid crystal drive module, a backlight drive module, a liquid crystal displaypanel and an LED backlight module. The liquid crystal display device is characterized by further comprising a dynamic backlight control module. The invention further discloses a method for processinga digital image signal of a liquid crystal display adjusting device. The invention adopts a method for independently controlling backlight subareas to be capable of reducing or even closing the backlight at parts with darker pictures and really darkening the backlight, so as to improve the picture contrast ratio and change the backlight brightness according to the change of the pictures by independently controlling the backlight subareas, thus reducing power consumption.

The invention discloses a quantum dot film and backlight module. The backlight module comprises the quantum dot film, wherein the quantum dot film comprises a substrate layer, a buffer layer, a quantum dot layer, a protective layer, a water oxygen barrier layer, a hardened layer and a first antireflection layer; the first antireflection layer improves permeability of white light. The first antireflection layer is arranged to reduce emergent loss of excitation light generated by the quantum dot layer.

The invention discloses an input device with a luminous pattern. The input device comprises an input interface and a backlight module. The backlight module comprises a light source and a light guide plate. The light guide plate is provided with a predetermined shading rate and forms at least one pattern at the lower surface of the light guide plate. When the light source is not started, the brightness of the light guide plate is lower than the predetermined shading rate and the pattern is not shown, when the light source is started, the luminous pattern is shown. The light guide plate is formed by uniformly doping multiple shading particles by a transparent plastic material and jetting, and at least one pattern is formed by densely arranging micro light guide structures. According to the invention, the backlight utilization rate is improved, the cost is reduced, a process is simplified, the shading uniformity is improved, the thickness of the input device is reduced, and the long-term collision and abrasion can be avoided.

The invention discloses a backlight module, a display and a display device. The backlight module comprises a high-power integrated surface COB light source backlight board, a brightness enhancement film and a diffusion film, and the brightness enhancement film is located between the COB light source backlight board and the diffusion film. The COB light source backlight board is provided with at least one lamp bead set arranged in a hexagon shape, and each vertex angle and the center of the hexagon of each lamp bead set are each provided with one lamp bead. The technical problem that an LCD backlight module in the prior art is uneven in light emitting is solved.

A dimming device and a display. The dimming device comprises a lens screen (1) and a blocking plate (2). The blocking plate (2) is disposed at a light exiting side of the lens screen (1) and opposite to the lens screen. The lens screen (1) comprises a bottom electrode (3), a top electrode (5), and a liquid between the bottom electrode and the top electrode. The liquid can form at least one droplet lens (4). The blocking plate (2) comprises a light blocking region (201) and a light transmitting region (202). The dimming device can adjust light without arrangement of any polarizer, thereby improving the utilization rate of backlight.

The present invention relates to a patterned color conversion film and a display device using the same. The patterned color conversion film of the present invention includes: a partition spaced with a plurality of openings; and a plurality of pixel units respectively disposed in the openings, wherein each pixel unit includes: a matrix, and a plurality of pixel units dispersed in the matrix. scattering particles, and at least one pixel unit includes a plurality of quantum dots; wherein, the volume percentage concentration of the quantum dots included in the pixel unit is greater than or equal to 5V% and less than or equal to 80V%, and the particle size of the scattering particles is between 0.05μm~ 1 μm, or when the volume percentage concentration is less than 5 V% and greater than or equal to 0 V%, the particle size of the scattering particles is between 0.2 μm and 2 μm.

A display panel (20) and a display device. A display panel (20), comprising a first substrate (21), a second substrate (22), and a liquid crystal layer (23) located between the first substrate (21) and the second substrate (22), the first substrate (21) A plurality of pixel regions (SP) are formed on the liquid crystal layer (23), the liquid crystal layer (23) contains liquid crystal molecules (231), the first alignment layer (219) is arranged on the first substrate (21) close to the liquid crystal layer (23), and the second substrate ( 22) is provided with a second alignment layer (224) close to the liquid crystal layer (23), and a polarizer (223) is provided on the outside of the second substrate (22). The polarizer (223) has a light transmission axis (P1), and the first The first alignment direction (X1) of the alignment layer (219) and the second alignment direction (X2) of the second alignment layer (224) are antiparallel, and both are in the direction of the light transmission axis (P1) of the polarizer (223) Vertically, the liquid crystal layer (23) is doped with quantum rods (232), and in each pixel region (SP), quantum rods (232) with different sizes are mixed with liquid crystal molecules (231), and the liquid crystal molecules ( 231) are arranged along the first alignment direction (X1) and the second alignment direction (X2), the alignment direction of the quantum rods (232) is consistent with the liquid crystal molecules (231), and the quantum rods (232) can convert the incident non-polarized light Converts to linearly polarized light in the same direction as its long axis.