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

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.

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.

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.