127 results about "Quantum rods" patented technology

A display device includes a light source generating light and a thin film transistor array panel including a pixel electrode and a common electrode. The display includes an upper panel and a quantum rod layer positioned between the thin film transistor array panel and the upper panel. The display includes an upper polarizer attached outside of the upper panel, in which the quantum rod layer includes quantum rods, and an arrangement direction of the quantum rods is controlled by an electric field generated by the pixel electrode and the common electrode, light is polarized according to the controlled arrangement direction, and the polarizer controls the transmission degree of the polarized light from the quantum rods according to the arrangement direction of the quantum rods.

Provided is a liquid crystal display device in which color reproducibility and brightness are improved. The liquid crystal display device includes a backlight that emits unpolarized blue light, a quantum rod layer which is provided on an emission side of the backlight and converts some of blue light to red linearly polarized light and green linearly polarized light using multiple quantum rods, a reflective polarizing layer which is provided on a side from which the red linearly polarized light and the green linearly polarized light of the quantum rod layer are emitted, and a liquid crystal panel disposed on a blue linearly polarized light emission side of the reflective polarizing layer, and a long axis direction of the quantum rods in the quantum rod layer and a polarization direction of the blue linearly polarized light emitted from the reflective polarizing layer are parallel to each other.

A quantum rod light-emitting display device according to an embodiment of the invention includes a display panel including a first substrate, a second substrate opposite to the first substrate, and a quantum rod layer disposed between the first substrate and the second substrate, wherein quantum rods in the quantum rod layer are arranged in one direction; a backlight unit provided under the display panel and configured to provide light to the display panel; and a short-wavelength pass filter film formed between the display panel and the backlight unit, and configured to transmit the light having a predetermined wavelength range.

The invention provides a polarizing plate applied to a liquid crystal display. The polarizing plate comprises a polarizing layer, a quantum rod layer, a first protecting layer and a second protecting layer, wherein the polarizing layer is provided with an absorbing shaft; the quantum rod layer is arranged on the surface of the polarizing layer and provided with a plurality of quantum bars; the long shafts of the plurality of quantum rods are arranged in the direction vertical to the absorbing shaft of the polarizing layer and is parallel to a transmission shaft of the polarizing layer; the first protecting layer is arranged at one side of the polarizing layer, opposite to the quantum rod layer; the second protecting layer is arranged at one side of the quantum rod layer, opposite to the polarizing layer. According to the polarizing plate, unpolarized incident light emitted by a backlight source enters the polarizing plate and is converted by the quantum rods into polarized light and then directly flows through the polarizing layer, and therefore, the utilization rate of the backlight source can be increased.

There is provided a display device that can improve the use efficiency of light from a light source and achieve low power consumption with a simple configuration even in the case in which no color filter is used. A display device includes a substrate having a display region and a TFT disposed on the display region, wavelength conversion layers each including a columnar quantum rod and disposed on a region corresponding to the display region, and a light source that excites the quantum rods.

The invention provides a liquid crystal display panel and a quantum rod polaroid manufacturing method. The liquid crystal display panel comprises a built-in quantum rod polaroid, quantum rods in the quantum rod polaroid are directionally arranged in the same direction, and therefore polarizing effect is achieved, a lower polaroid is saved, the penetration rate and the brightness of the liquid crystal display panel are greatly improved, at the same time, the quantum rods emit linearly polarized light under optical excitation, and therefore the display colour gamut of the liquid crystal display panel is increased. The quantum rod polaroid manufacturing method comprises that firstly, a reaction film containing action groups is formed on a substrate, then a layer of quantum rod film is formed on the reaction film, surface groups of the quantum rods which are subjected to surface modification and the action groups of the reaction film form binding bonds or an adsorption force, and the quantum rods flatly lie on the substrate, the quantum rods can rotate under the effect of an electric field and are directionally arranged, and therefore the quantum rod polaroid having the polarizing effect is formed.

The invention relates to a quantum rod film for a backlight module of a liquid crystal display. The quantum rod film comprises a quantum rod layer containing a plurality of quantum rods with long axles arrayed in one direction, a prism micro-structural layer having first refraction rate and a plurality of stripped prisms arrayed in a parallel way, and a double-refraction layer covering the prism micro-structural layer having abnormal light refraction rate or normal refraction rate, wherein the prism micro-structural layer is arranged on a light-incident side of the quantum rod layer; and due to the difference between the first refraction rate of the prism micro-structural layer and the abnormal light refraction rate or normal refraction rate of the double-refraction layer, light-incident light of the long axle direction of the plurality of quantum rods are selectively paralleled and light-incident lights perpendicular to the long axle direction of the plurality of quantum rods are reflected and recovered to strengthen back light source utilization rate.

The invention provides a method for preparing a quantum rod/ polymer fiber membrane by using an electrostatic spinning technology. The method comprises the following steps: (1) preparing a quantum rod solution; (2) preparing a polymer solution, and adding the quantum rod solution prepared in step (1) into the polymer solution to form an electrostatic spinning precursor solution having a quantum rod volume concentration of 5-80%; and (3) adding the electrostatic spinning precursor solution into an electrostatic spinning device, adjusting the voltage of a generator and the receiving distance, and then performing electrostatic spinning, thus obtaining the quantum rod/ polymer fiber membrane. By adjusting the concentration of the quantum rod solution and parameters in the electrostatic spinning process, directional arrangement of quantum rods in the electrostatic spinning process is realized, and the quantum rod/ polymer fiber membrane with high polarization performance is thus obtained.

The present invention relates to a luminescent photovoltaic generator (1) and a waveguide for use in such a photovoltaic generator. The photovoltaic generator comprises a photovoltaic cell (4) and a waveguide comprising a transparent matrix (2) having particles of an inorganic luminescent material dispersed therein and/or an inorganic luminescent material disposed at least one side thereof (6). The waveguide is associated with the photovoltaic cell (4), such that, in use, at least some of the light emitted from the luminescent material passes into the photovoltaic cell (4) to generate a voltage in the cell. In preferred embodiments, the inorganic luminescent material is a line emitter and the emission is due to a forbidden electronic transition within the material. The inorganic luminescent material may be selected from an inorganic phosphor, an inorganic fluorescent material and quantum dots, quantum rods and quantum core/shell systems. The photovoltaic generator (1) is an alternative to or an improvement upon known photovoltaic generators, which generally suffer from a lack of power yield per area.

The invention provides a preparation method of a fluorescent polarizing film based on directional arrangement of quantum rods. In the method, an ink-jet printing technology is used to print quantum-rod ink with proper viscosity and surface tension on a substrate according to a preset pattern and arrange the quantum rods in a certain direction to obtain the fluorescent polarizing film. The diameter and the line spacing of fluorescent lines obtained by the method provided by the invention can be controlled and adjusted by parameter conditions such as needle aperture, printing speed, preset pattern and the like. The prepared transparent fluorescent film with directionally arranged quantum rods has a high degree of polarization, can be prepared on a flexible substrate in a normal temperature environment, and has wide applicability.

A liquid crystal display according to an exemplary embodiment of the present invention includes: a display panel, and a color conversion layer coupled to the display panel and having a color conversion layer, where the color conversion layer includes a block copolymer including a first copolymer and a second copolymer, and quantum rods dispersed within the block copolymer. The block copolymer includes a first block structure unit formed by the first copolymer; and a second block structure unit formed by the second copolymer, where the quantum rods is are disposed within either one of the first block structure unit and the second block structure unit.

A quantum rod light-emitting display device according to an embodiment of the invention includes a display panel including a first substrate, a second substrate opposite to the first substrate, and a quantum rod layer formed between the first substrate and the second substrate, wherein a plurality of quantum rods are arranged in the quantum rod layer in one direction; and a polarizer disposed on the display panel and including a quarter wave plate (QWP) layer and a polyvinyl alcohol (PVA) layer, wherein the PVA layer transmits only light linearly polarized in a first direction, and wherein the QWP layer is disposed under the PVA layer, and the QWP layer circularly polarizes the light linearly polarized in the first direction or linearly polarizes light reflected by the display panel in a second direction.

The invention relates to the field of display technology, and the embodiment of the invention discloses a polaroid and a manufacturing method thereof. The polaroid comprises a substrate and a quantumrod film arranged on the substrate, wherein the quantum rod film comprises a plurality of quantum rods arranged in the identical direction, and the quantum rods are doped with magnetic nano particles.The invention also relates to a liquid crystal display panel. The manufacturing method of the polaroid is simple, the manufactured polaroid is stable in polarization performance, so that the liquid crystal display panel can achieve a wide color gamut with high degree of color contrast and an NTSC (National Television System Committee) ratio of 100% to improve the image display effects, reduce power consumption and significantly prolong the standby time.

Disclosed herein is a display panel including a polarizing emission layer. An organic light emitting device is formed on a first substrate. A polarizing emission layer are formed on a second substrate facing the first substrate. The polarizing emission layer is formed in a subpixel area corresponding to the organic light emitting device. The polarizing emission layer includes quantum rods. The quantum rods are aligned in one direction to be polarized. Accordingly, loss of transmitting light in the display panel including the polarizing layer may be minimized. In addition, since colors are implemented by the quantum rods included in the polarizing emission layer, color filters can be replaced by the quantum rods, and loss of light resulting from the color filters may be minimized.

The invention provides a polarization selective color filter and display device including the same. A polarization selection color filter includes: a first color conversion layer including a plurality of first quantum rods absorbing light of a first wavelength and emitting light of a second wavelength that is longer than the first wavelength; and a second color conversion layer including a plurality of second quantum rods disposed on the first color conversion layer, absorbing the light of the second wavelength and emitting light of a third wavelength that is longer than the second wavelength. The polarization selection color filter is applicable to a color filter array of a display device and may improve a contrast ratio.

A quantum rod film for a backlight unit of a liquid crystal display is disclosed herein. The quantum rod includes a first barrier layer, a sub-wavelength microstructure on the first barrier layer, and a plurality of quantum rods, wherein the sub-wavelength microstructure includes gratings aligned n a parallel direction an alignment microstructure disposed in grooves between the gratings in a direction perpendicular to the gratings, and a reflective layer on upper surfaces of the gratings. A plurality of quantum rods are arranged in the alignment microstructure of the sub-wavelength microstructure, and major axes of the quantum rods are aligned in a direction perpendicular to the gratings.

Provided is a liquid crystal display including: a substrate; a thin film transistor disposed on the substrate; a pixel electrode disposed on the thin film transistor and connected to the thin film transistor; a roof layer disposed on the pixel electrode to be spaced apart from the pixel electrode with a microcavity therebetween; a liquid crystal layer positioned in the microcavity; a polarizer; and a quantum rod layer in which a plurality of quantum rods is disposed, in which one of the polarizer and the quantum rod layer is disposed below the substrate and the other one is disposed on the roof layer.

Disclosed herein is a polarizer for LCD. The polarizer includes a polarizing layer, a quantum rods layer comprising a plurality of quantum rods, a first protective layer and a second protective layer, wherein major axis of the quantum rods is aligned in a direction perpendicular to the absorption axis of the polarizing layer. Accordingly, the incident unpolarized light emitted from the backlight unit can be transferred to be polarized light by the quantum rods layer and pass through the polarizing layer directly for enhancing the utility of the backlight.

A display panel (20) and a display device. The display panel (20) comprises a first substrate (21), a second substrate (22) and a liquid crystal layer (23) located between the first substrate (21) andthe second substrate (22). A plurality of pixel regions (SP) are formed on the first substrate (21). The liquid crystal layer (23) contains liquid crystal molecules (231). A first alignment layer (219) is arranged on the first substrate (21) and is close to the liquid crystal layer (23); a second alignment layer (224) is arranged on the second substrate (22) and is close to the liquid crystal layer (23); a polarizing plate (223) is arranged on the outer side of the second substrate (22); the polarizing plate (223) has a light-transmitting axis (P1). The first alignment direction (X1) of the first alignment layer (219) and the second alignment direction (X2) of the second alignment layer (224) are reversely parallel; the light guide plates are perpendicular to the direction of a light transmission axis (P1) of the polarizing plate (223); quantum rods (232) are doped in the liquid crystal layer (23); in each pixel region (SP), the quantum rods (232) with different sizes are mixed with the liquid crystal molecules (231); the liquid crystal molecules (231) are arranged in the first alignment direction (X1) and the second alignment direction (X2), the arrangement direction of the quantum rods (232) is consistent with that of the liquid crystal molecules (231), and the quantum rods (232) can convert incident non-polarized light into linearly polarized light with the same long axis direction.

The present invention proposes an LCD panel and a method for forming the same. The LCD panel includes an isolator disposed between two adjacent liquid crystal units. Liquid crystal molecules of red liquid crystal units and green liquid crystal units are mixed with quantum rods (QRs) of corresponding colors. The red liquid crystal units correspond to a position of the red pixels, the green liquid crystal units correspond to a position of the green pixels. The QRs and liquid crystal molecules have long axes and directions of the long axes of QRs and liquid crystal molecules are the same.

The invention discloses a display panel which comprises a color film substrate and an array substrate arranged opposite to each other, the array substrate is provided with pixel units and intersectedbut insulated scanning and data lines, each pixel unit is internally provided with a pixel electrode and a film transistor, the pixel electrode is connected with the corresponding scanning and data lines via the film transistor, a mixture liquid crystal layer is arranged between the color film substrate and the array substrate, and comprises liquid crystal molecules and quantum rods, the initial arrangement direction in the long axis of the liquid crystal molecules is the same with that of the quantum rods, the quantum rods can convert incident non-polarized light into linearly polarized lightin the same direction with the long axis, a polaroid is arranged on the color film substrate, a reflection electrode is arranged on the array substrate, the display panel forms a reflection area in the area corresponding to the reflection electrode, and the display panel forms a transmission area corresponding to the pixel electrode and staggered from the area of the reflection area. The invention also provides a display device with the display panel.