33 results about "Display contrast" patented technology

The application discloses an optical film and a head-up display device. The optical film comprises a substrate and a plurality of first microstructures in the substrate. The light transmittance of the substrate is less than that of the first microstructures. The substrate comprises a first surface and a second surface arranged oppositely. The first microstructures extend along a first direction and are periodically arranged along a second direction. The first microstructures are first isosceles triangles in a first cross section. The base of the first isosceles triangle is located on the first surface. An incident light transmission channel or an outgoing light transmission channel is formed between two adjacent first microstructures. The first direction intersects the second direction. The first cross section is perpendicular to the first direction. The optical film is attached to a projection substrate of the head-up display device, can realize high reflection of only the light rays of information to be conveyed emitted by the display module, low reflection of ambient light of other angles, and thus improves display contrast and visual effect.

The invention relates to a micro display device which comprises a driving back plate, and a first type of electrode contacts and a second type of electrode contacts which are opposite in polarity are arranged on the driving back plate. The pixel layer is stacked above the driving back plate, and sub-pixels are arranged in the pixel layer; the bottom end of each sub-pixel is electrically connected to the corresponding first type of electrode contact through a bottom conductive layer, and the top ends of the plurality of sub-pixels are electrically connected to the corresponding second type of electrode contact through a shared top conductive layer; corresponding light isolation assemblies are arranged on the peripheries of the sub-pixels, the light isolation assemblies are suspended above the bottom conducting layer, and the light isolation assemblies and the bottom conducting layer are insulated and isolated from each other; wherein the top conductive layer is located above all the light isolation assemblies. The pixel yield of the micro-display device can be remarkably improved, and the display brightness and the display contrast of the micro-display device can be improved.

The invention discloses a display panel and a display device. The display panel comprises a light-emitting layer, a color resistance layer and a photoelectric conversion layer, the color resistance layer is located on the light-emitting side of the light-emitting layer, the photoelectric conversion layer and the color resistance layer are at least partially stacked, and the photoelectric conversion layer is used for converting part of light irradiated on the photoelectric conversion layer into electric energy. The photoelectric conversion layer can convert a part of incident light into an electric signal to block external ambient light, so that the interference of external strong light on a display picture is reduced, and the display contrast and visibility are improved; the electric energy obtained through conversion can be used for supplying power to a driving circuit or a sensor module in the display panel, self-supply of energy is achieved, and the endurance time of equipment is prolonged.

The utility model discloses a backlight FPC for subarea display, a backlight module and a display module, and relates to the display module field, the backlight FPC comprises a main body part and a bending part integrally connected with the main body part, the main body part is provided with a plurality of LED pads, the LED pads are divided into at least two groups, the bending part is provided with at least two groups of power supply pads, and the power supply pads are connected with the main body part. Each group of power supply bonding pads is connected with each corresponding group of LED bonding pads through a driving circuit to form a closed loop; the backlight module comprises a backlight FPC and an iron stand, the backlight FPC is arranged on one side of the iron stand, and an LED lamp is installed on an LED bonding pad in the backlight FPC. The display module comprises a backlight module and a display panel, the display panel comprises a first visual area and a second visual area, and the first visual area and the second visual area respectively correspond to at least one group of LED bonding pads; according to the utility model, the partition brightness adjustment is realized, the display contrast is improved, the overall energy consumption is reduced, the heat dissipation of the backlight module is facilitated, the backlight power consumption is greatly reduced, the service time of a battery is prolonged, the endurance is improved, and the product competitiveness is improved.

The invention provides a transparent display screen, electronic equipment and a manufacturing method of the transparent display screen, relates to the technical field of electronic equipment, and is used for solving the problem that the display contrast of the transparent display screen is relatively low. The transparent display screen comprises a substrate, a pixel layer and a color changing layer. The pixel layer is located on the substrate and comprises a light-emitting part and a transparent part which are distributed in the first direction. The color changing layer is located on the side, away from the substrate, of the pixel layer and at least covers the transparent part. According to the transparent display screen, the color changing layer at least covers the transparent part, the problem that the contrast ratio of the transparent display screen is poor can be effectively solved, the transparency of the color changing layer can be dynamically adjusted according to the ambient light, and therefore the contrast ratio of the transparent display screen is dynamically adjusted, and the display effect of the transparent display screen is improved.

To provide a liquid crystal display device capable of enhancing display contrast.SOLUTION: A first substrate including a plurality of gate lines extending in a first direction and a plurality of source lines extending in a second direction intersecting the first direction, a second substrate facing the first substrate, and a liquid crystal layer sandwiched between the first substrate and the second substrate and containing liquid crystal molecules having positive dielectric anisotropy, the first substrate sequentially including a first electrode, an insulating layer, and a second electrode provided with an opening having a longitudinal shape, in a plan view, a longitudinal direction of the opening is inclined at an angle θ 11 [°] in one of clockwise and counterclockwise directions with respect to a direction perpendicular to the first direction, and in a plan view, an alignment direction of the liquid crystal molecules in the no-voltage-applied state located near the first substrate and in a central portion of the opening is inclined at an angle θ 12 [°] in a direction opposite to the one direction with respect to the direction perpendicular to the first direction.SELECTED DRAWING: Figure 1

The invention relates to the technical field of display, in particular to a display screen and a display device.The display screen comprises a color resistance layer, the display screen comprises a first side and a second side which are opposite in the first direction, and the color resistance layer comprises a plurality of color resistance units arranged in the first direction; each color resistance unit at least comprises a first color resistance block, a second color resistance block and a third color resistance block in different colors. The color resistance units, close to the first side, in the color resistance layer are first edge color resistance units, and the color resistance units, close to the second side, in the color resistance layer are second edge color resistance units. The color resistance column, adjacent to the second side, in the second edge color resistance unit comprises a third color resistance block, when the multiple display screens are spliced in the first direction, three-color pixel light display can be achieved in the area between every two adjacent display screens, and then the display contrast ratio and the display brightness uniformity of the whole spliced multiple display screens can be improved.

A near-eye optical display apparatus includes an optical waveguide, an image beam source, and an electrically controlled liquid crystal cell. The image beam source is disposed on one side of a first light incident surface to provide an image beam. After being transmitted through the optical waveguide, the image beam exits from the light-exit surface. The liquid crystal cell is disposed on one side of a second light incident surface, and has a first sight region and a second sight region disposed in a first direction. When a driving voltage is supplied to the liquid crystal cell, the percentage of an average transmittance of the second sight region for an ambient beam and an average transmittance of the first sight region for the ambient beam is less than or equal to 50%. The display contrast of the near-eye optical display apparatus proposed by the invention is not easily affected by the external environment.

The utility model discloses a backlight module and electronic equipment, and the backlight module comprises a back plate which is regularly provided with a plurality of light-emitting units; the plurality of light-emitting units are connected in parallel; the light guide plate faces the side, provided with the light emitting unit, of the back plate; an optical module is arranged on the side, back to the back plate, of the light guide plate. Each light-emitting unit can be independently controlled, a finer dimming effect can be achieved, and the display contrast ratio and purity are improved.

The invention discloses a display panel and a display device. The display panel comprises a light emitting layer and a photoelectric conversion layer, the photoelectric conversion layer comprises a perovskite solar cell, at least part of the perovskite solar cell is located on a light emitting path of the light emitting layer, and the perovskite solar cell is used for converting part of light irradiated on the perovskite solar cell into electric energy. The photoelectric conversion layer can convert a part of incident light into an electric signal to block external ambient light, so that the interference of external strong light on a display picture is reduced, and the display contrast and visibility are improved; the electric energy obtained through conversion can be used for supplying power to a driving circuit or a sensor module in the display panel, self-supply of energy is achieved, and the endurance time of equipment is prolonged.

The invention provides an inclined spiral cholesteric liquid crystal composition and a liquid crystal display device comprising the same. The inclined spiral cholesteric liquid crystal composition comprises at least one nematic liquid crystal composition, at least one chiral agent and at least one mesogenic component, and the nematic liquid crystal composition comprises at least one compound shown in the general formula I. When the inclined spiral cholesteric liquid crystal composition is applied to a liquid crystal display device, high-reflectivity visible light wave band color display can be obtained under the driving of a small driving voltage, and the inclined spiral cholesteric liquid crystal composition has a large ratio of the reflectivity of color light to the reflectivity of a black back bottom, has a good display contrast ratio and can be applied to the field of liquid crystal display devices. Therefore, both high electric efficiency and good color display can be considered. When a multilayer display device is filled with the inclined spiral cholesteric liquid crystal composition, modulation of black, white and different visible light colors can be achieved. The liquid crystal display device can realize different-color display of different display areas, and has a wide application space.

The application discloses a display device and a control method thereof, and belongs to the technical field of display. The display device comprises a flexible display module and a support, the flexible display module comprises a supporting back plate, and the supporting back plate is located on the side of the back light surface of the flexible display module; the flexible display module further comprises a plurality of sensor devices; wherein the support is fixed with the supporting back plate through a universal structure, one end of the universal structure is fixed with the supporting back plate, the other end of the universal structure is fixed with the support, the sensor devices are electrically connected with the universal structure through a first motor assembly; and / or the supporting back plate comprises a hinge assembly, and the sensor devices are electrically connected with the hinge assembly through a second motor assembly. The control method of the display device is applied to the above-mentioned display device. The application can automatically adjust the screen turning and angle according to the position of the user, is favorable for improving the use safety, and can also improve the display contrast.

The liquid crystal display panel comprises a first substrate, protruding structures arranged on the first substrate and a first alignment layer covering the protruding structures and the first substrate, a liquid crystal layer is located on the side, away from the first substrate, of the first alignment layer, and each protruding structure comprises the first substrate and a side face located between the first surface and the first substrate. The acute angle formed between the side, close to the first substrate, of the side face and the direction parallel to the first substrate is limited to be smaller than 50 degrees, so that the orientation disorder phenomenon of liquid crystal molecules on the inclined planes of the protruding structures is effectively restrained; the liquid crystal display panel has the advantages of improving liquid crystal molecule orientation stability, reducing dark-state light leakage and improving display contrast, and the adaptability to a self-alignment process is improved.

The invention discloses a vehicle-mounted screen integrated assembling and processing method based on capacitive touch control, and belongs to the field of vehicle-mounted display and touch control device manufacturing. S2, preparing a touch electrode layer; s3, coating an insulating layer; s4, forming an optical adjustment layer; s5, integrally forming a display function layer; s6, integrating an electromagnetic shielding layer; s7, packaging and lead connection; s8, carrying out segmented function detection; s9, carrying out reliability strengthening treatment; and S10, performing final quality control and packaging. An integrated structure is adopted, an independent touch module protection cover plate and an optical adhesive for attachment are not needed, the material cost is remarkably reduced, through the gradient refractive index design, the interface reflectivity between the touch electrodes and the display layer is greatly reduced, the overall light transmittance and the display contrast ratio are remarkably improved, and the display quality is improved. The method can also support manufacturing of vehicle-mounted touch screens with different sizes and different forms.

Provided are a stereoscopic image display device having high display contrast, and an optical sheet with which high display contrast can be obtained for use in a stereoscopic image display device. The stereoscopic image display device includes, in the following order a lens array, a directivity control layer, and a light-emitting image display element, in which one surface of the lens array has a planar shape, and another surface of the lens array has a curved shape, the directivity control layer is disposed on the planar surface side of the lens array, in a case where the directivity control layer is irradiated with light from one surface side, the directivity control layer has a highest luminance in a normal direction of another surface of the directivity control layer. Accordingly, the object is achieved.

The invention relates to a micro display device which comprises a driving back plate, and a first type of electrode contacts and a second type of electrode contacts which are opposite in polarity are arranged on the driving back plate. The pixel layer is stacked above the driving back plate, and sub-pixels are arranged in the pixel layer; the bottom end of each sub-pixel is electrically connected to the corresponding first type of electrode contact through a bottom conductive layer, and the top ends of the plurality of sub-pixels are electrically connected to the corresponding second type of electrode contact through a shared top conductive layer; corresponding light isolation assemblies are arranged on the peripheries of the sub-pixels, the light isolation assemblies are suspended above the bottom conducting layer, and the light isolation assemblies and the bottom conducting layer are insulated and isolated from each other; wherein a concave part is formed in the top conducting layer, and at least part of the concave part is located between the light isolation assemblies of every two adjacent sub-pixels. The pixel yield of the micro-display device can be remarkably improved, and the display brightness and the display contrast of the micro-display device can be improved.

A near-eye optical display apparatus includes an optical waveguide, an image beam source, and an electrically controlled liquid crystal cell. The image beam source is disposed on one side of a first light incident surface to provide an image beam. After being transmitted through the optical waveguide, the image beam exits from the light-exit surface. The liquid crystal cell is disposed on one side of a second light incident surface, and has a first sight region and a second sight region disposed in a first direction. When a driving voltage is supplied to the liquid crystal cell, the percentage of ratio of an average transmittance of the second sight region for an ambient beam and an average transmittance of the first sight region for the ambient beam is less than or equal to 50%. The display contrast of the near-eye optical display apparatus proposed by the invention is not easily affected by the external environment.

The utility model discloses a backlight intelligent control instrument which comprises a shell, a circuit board, a backlight lamp panel and a display screen, the circuit board, the backlight lamp panel and the display screen are arranged on the shell, the backlight lamp panel and the display screen are both electrically connected to the circuit board, and the backlight lamp panel emits light to illuminate the display screen; the backlight lamp panel is provided with a plurality of light-emitting areas, and the circuit board controls the brightness of each light-emitting area. By the adoption of the scheme, the backlight intelligent control instrument is provided, the multiple light-emitting areas are arranged on the backlight lamp panel, so that the brightness of the different light-emitting areas is controlled through the circuit board, and the display contrast of the different areas or the brightness in different environments is improved.

The invention relates to an optical film with a quadrangular frustum pyramid microstructure and a MicroLED display panel, the optical film with the quadrangular frustum pyramid microstructure comprises a transparent substrate with the thickness of 100-500 microns and microstructure units arrayed on the surface of the transparent substrate, each microstructure unit is a regular quadrangular frustum pyramid, the length of the bottom edge of each regular quadrangular frustum pyramid is 20-50 microns, the height of each quadrangular frustum pyramid is 8-12 microns, and the thickness of each microstructure unit is 10-20 microns. The included angles between the side surfaces and the bottom surface of the four prismatic tables are 30-45 degrees; the optical film with the quadrangular frustum pyramid microstructure can effectively regulate and control the propagation direction of large-angle light and effectively suppress light interference between adjacent pixels, so that the display contrast and the color rendition accuracy are remarkably improved.

The present invention addresses the problem of providing a stereoscopic image display device having a high display contrast and an optical sheet capable of obtaining a high display contrast when used in a stereoscopic image display device. A self-luminous image display device includes a lens array, a directivity control layer, and a self-luminous image display element in this order, one surface of the lens array has a planar shape, the other surface has a curved surface shape, and the directivity control layer is disposed on the planar surface side of the lens array. The directivity control layer has the highest brightness in the normal direction of the other surface when light is irradiated from the one surface side.

The embodiment of the invention discloses projection display equipment, which comprises a display driving circuit, a light source, a phase light modulation assembly, an amplitude light modulation assembly and a lens, and is characterized in that the light source sequentially emits light signals of all color channels according to a modulation sequence; when the time sequence signal of the first color channel is a pulse falling edge, the display driving circuit sends a first enable signal of a second color channel to the phase light modulation assembly and sends a second enable signal of the second color channel to the amplitude light modulation assembly, and the second color channel is the next color channel of the first color channel in the modulation sequence. According to the embodiment of the invention, the display driving circuit detects the pulse falling edge of the time sequence signal of the previous color channel to drive the phase light modulation assembly and the amplitude light modulation assembly to modulate the light signal of the next color channel, so that the modulation sequence synchronization of the phase light modulation assembly and the amplitude light modulation assembly can be ensured; therefore, the image or the video with the improved contrast can be correctly displayed.

Embodiments of the present application disclose a display panel, a driving method of the display panel and a display device, which comprise a plurality of pixel regions, each of the pixel regions comprises at least one minimum repeating region, the minimum repeating region comprises a transmission area and a light emitting element setting area, the transmission area is provided with a transmission rate adjusting structure, and the light emitting element setting area is provided with a light emitting element, and a display mode of the display panel comprises a first display mode, in the first display mode, the transmission rate of the transmission area is adjusted according to the set brightness of the display panel and whether the light emitting element of the pixel region emits light, through the technical scheme, in the first display mode, when the light emitting element of the pixel region emits light, the transmission rate of the transmission area of the pixel region is adjusted according to the set brightness of the display panel, so that the display contrast of the pixel region in which the light emitting element emits light is improved, and the display effect of the display panel is improved.

The present application relates to the technical field of display screen detection, in particular to a grating type naked eye 3D display screen fitting precision test method and device thereof, the method comprises the following steps: sequentially lighting the first picture, the second picture and the third picture of the display screen to be tested, the collection camera of the camera collection module automatically samples, and the first brightness value L1, the second brightness value L2 and the third brightness value L3 of the collected picture are analyzed respectively; the contrast CR is calculated by the formula CR=(L1-L3) / (L2-L3); the contrast CR obtained by analysis and calculation is compared with the standard value of contrast, and the result is judged as OK when the contrast CR is greater than or equal to the standard value, and the result is judged as NG when the contrast CR is less than the standard value; the device is used to realize the method. The present application replaces the human eye detection with the visual system, uses the corresponding relationship between the fitting alignment deviation and the 3D display contrast, replaces the size measurement method with the contrast measurement method to evaluate the fitting precision, and significantly improves the test efficiency.

The embodiment of the invention provides a display module and a head-up display device. The display module comprises a display area. In one frame of picture, the display area comprises a first area and a second area. The display module comprises a backlight module and a display panel, and further comprises a first functional layer and a first diaphragm which are located on the side, away from the backlight module, of the display panel. The light emitting device is arranged in the first area, at least part of emergent light is modulated into light capable of being released by the first diaphragm by the first functional layer, and at least part of emergent light is modulated into light capable of being absorbed by the first diaphragm by the first functional layer in the second area. After the first liquid crystal layer and the first polaroid are utilized to absorb and filter light rays in the second area for the first time, the first functional layer and the first diaphragm are continuously utilized to absorb and filter the light rays in the second area for the second time, so that the quantity of the light rays emitted from the second area is greatly reduced, the black state degree in the second area is improved, and the display effect is improved. The display contrast of the display module is improved, so that the display effect is improved.

The invention discloses a Micro LED device integrated with an ultra-thin distributed Bragg reflector and a preparation method of the Micro LED device. The device comprises a semiconductor epitaxial structure, and the ultra-thin distributed Bragg reflector is integrated on a non-light extraction surface of the device or between adjacent pixels; the reflector is formed by alternately stacking at least one period of high-refractive-index material layers and low-refractive-index material layers, the absolute value of the refractive index difference between the high-refractive-index material layers and the low-refractive-index material layers is larger than or equal to 0.5, and the total thickness of the reflector is smaller than 1000 nm. According to the distributed Bragg reflector, the characteristics of a high-refractive-index contrast material are utilized, high reflectivity is achieved under the nanoscale thickness, and the problems that a traditional distributed Bragg reflector is large in thickness, high in stress and poor in micro-nano technology compatibility are effectively solved. The structure can be flexibly integrated at the bottom or the side wall of a chip or in a pixel isolation groove, the light extraction efficiency of a Micro LED can be remarkably improved, light crosstalk between pixels is restrained, and the display contrast ratio and the device reliability are improved.

A computer processing method includes receiving sensor data from a number of sensors comprising a first sensor facing away from a user, and a second sensor facing towards the user. The method also includes controlling an electronic tinting component associated with a translucent optical element based on the sensor data. The electronic tinting component adjusts optical element tint occlusion. The method further includes controlling at least one of a display brightness, display contrast, color composition, or field of view of a light engine assembly based on the sensor data. The method still further includes displaying content with the light engine assembly.

The utility model discloses an anti-crosstalk structure of a silicon-based OLED display device, which comprises an isolation column used for isolating a first organic layer, the isolation column comprises an inorganic layer and a metal layer arranged on the inorganic layer, and the metal layer is made of ferrous metal. According to the anti-crosstalk structure of the silicon-based OLED display device provided by the utility model, the inorganic layer and the black metal layer jointly form the isolation column structure, so that the isolation of the organic layer (an electric crosstalk layer) can be realized; meanwhile, black metal can serve as a light blocking layer, optical crosstalk between adjacent pixels is prevented, ambient light reflection is reduced, and the display contrast ratio is improved. The utility model also discloses a silicon-based OLED display device.

The utility model relates to a backlight module with improved bright line and display screen, wherein the backlight module with improved bright line comprises a back plate, a rubber frame, a light guide plate and a reflector plate, the rubber frame is connected with the inner peripheral side of the back plate, the light guide plate and the reflector plate are embedded in the rubber frame, a lamp bead assembly is arranged between one side of the rubber frame and the light guide plate, and the light guide plate is connected with the rubber frame. The reflector plate is located between the light guide plate and the back plate, and a gap is formed between the side edge of the reflector plate and the inner circumferential side of the rubber frame. The display device has the advantages of being capable of improving the display contrast ratio, simple in structure and low in cost.

The present application relates to a kind of micro display devices, including drive backplate, first electrode contact and second electrode contact of opposite polarity are provided on drive backplate;Pixel layer is stacked above drive backplate, and sub-pixel is provided in pixel layer;The bottom of each sub-pixel is electrically connected to corresponding first electrode contact by bottom conductive layer respectively, and the top of multiple sub-pixels is electrically connected to corresponding second electrode contact by a shared top conductive layer;The periphery of sub-pixel is provided with corresponding light isolation component, light isolation component is suspended above bottom conductive layer, and light isolation component and bottom conductive layer are mutually insulated and isolated;Wherein, top conductive layer is formed with recess, recess is at least partially located between the light isolation component of adjacent two sub-pixels described.The present application can significantly improve the pixel yield of micro display device, and improve its display brightness and display contrast.

The application provides a display panel and a display device, the display panel comprising a display area, the display area comprising a normal display area and a device setting area, the device setting area comprising a plurality of first light emitting units and a plurality of first filter groups; the first filter group comprising a first filter structure and a second filter structure; along a first direction Z, a projection of the first filter structure covers the first light emitting unit, and a projection of the second filter structure surrounds the projection of the first filter structure; wherein a filter color of the first filter structure is the same as an out-light color of the corresponding first light emitting unit, and a filter color of the second filter structure is different from the filter color of the first filter structure. The filter group adopts a filter ring structure with one or several different filter colors, which can limit the light emitting unit out-light viewing angle, increase the display contrast, improve the transmittance of external light, thereby reducing the display difference between the normal display area and the device setting area, and improving the display effect of the display panel.