52 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 invention discloses a display module and a preparation method thereof, the display module comprises a plurality of display panels, each display panel comprises a light-emitting assembly, a packaging glue structure and a light processing film, the light-emitting assembly comprises a circuit board and a plurality of light-emitting devices, the light-emitting devices are arranged on one side of the circuit board, and the light processing film is arranged on the circuit board. The light-emitting device is electrically connected to a circuit pattern on the circuit board, the packaging adhesive structure covers the light-emitting assembly from the side where the light-emitting device is located, a plurality of light diffusion particles are distributed in the packaging adhesive structure, and the light processing film covers the side, away from the circuit board, of the packaging adhesive structure. According to the light processing film, the display contrast of the display panel can be improved, the uniformity of light emitted out of the light emitting side of the display panel can be effectively improved by distributing the multiple light diffusion particles in the packaging adhesive structure, and therefore the color uniformity of the surface of the light emitting side of the display panel is effectively improved.

The present invention relates to the field of electronic paper display technology, and specifically relates to an upper cover plate structure, comprising: a first substrate, a filter layer being arranged on the surface of the first substrate; the filter layer comprises multiple color filters arranged as spaced apart, where gaps are formed between adjacent color filters; reflective structures are provided on the surfaces of the color filters away from the first substrate; conductive dielectric layers are arranged on the surfaces of the reflective structures away from the color filters and on surfaces of the gaps; and insulating guide layers are filled within the gap notches and are located on the surface of the conductive dielectric layers. By means of arranging the insulating guide layers as surrounding the color filters and arranging said layers on the conductive dielectric layers, the color filters consequently align with pixel electrodes to form a directly vertically oriented electric field and eliminates obliquely oriented electric fields. The present invention improves screen reflectivity and display contrast.

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 provides a pixel circuit, a display panel and a display device. The pixel circuit comprises a pixel electrode, a data line, a grid scanning line, a first thin film transistor, a second thin film transistor and a control wire. Wherein the first thin film transistor is used for controlling whether to input a data signal to the pixel electrode; the second thin film transistor is used for switching the effective channel length of the first thin film transistor; the first end of the second thin film transistor is electrically connected with the active layer of the first thin film transistor. In response to closing of the second thin film transistor, the effective channel length of the first thin film transistor is the first channel length; in response to opening of the second thin film transistor, the effective channel length of the first thin film transistor is the second channel length; wherein the first channel length is greater than the second channel length. According to the pixel circuit, the on-state current can be increased while the off-state current is reduced, so that the ratio of the on-state current to the off-state current is greatly increased, and the display contrast and the image quality are 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.

The embodiment of the present application discloses a liquid crystal composition and a display panel, the liquid crystal composition comprises at least one first compound represented by a general formula (I), and the present application improves the performance of the liquid crystal composition in the clearing point, optical anisotropy, elastic coefficient and the like by adding the first compound in the liquid crystal composition, so that the display contrast and the response time of the display panel using the liquid crystal composition are improved.

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 application discloses an LED display device and a manufacturing method thereof. The device comprises a first light-emitting layer system and a second light-emitting layer system. The first light-emitting layer system comprises a plurality of first light-emitting units, a first metal reflection layer, a plurality of first pixel electrodes and a plurality of first metal reflection patterns. The first pixel electrodes and the first metal reflection patterns are respectively arranged on one side and the other side of the first light-emitting units. The first metal reflection layer surrounds each first light-emitting unit. A first light-emitting area is formed between the first metal reflection patterns and the first metal reflection layer. The second light-emitting layer system comprises a plurality of second light-emitting units, a second metal reflection layer and a plurality of second pixel electrodes. The plurality of second pixel electrodes are arranged on one side of the plurality of second light-emitting units. The second metal reflection layer surrounds each second light-emitting unit. The projection of the second light-emitting unit falls within the projection of the first metal reflection pattern. The application can improve the display contrast of light rays of different colors in the LED display device and improve the optical efficiency.

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.

The invention relates to the technical field of display, in particular to a color film and a preparation method thereof as well as a display device and a preparation method thereof, contrast improvement layers in array distribution are prepared in a substrate, and light color conversion layers are prepared in gaps between the contrast improvement layers, so that the color film is prepared, in the color film, the contrast improvement layers are used for improving display contrast, and the light color conversion layers are used for improving display color. The light color conversion layer is used for light color conversion, the contact area of the light color conversion layer and the contrast improvement layer is a connection area, the height of the connection area is larger than or equal to 1.5 micrometers, the contact area of the light color conversion layer and the contrast improvement layer is increased through the height, and the connection firmness of the light color conversion layer and the contrast improvement layer is improved. The color film is arranged on the light-emitting face of the light source, the contrast ratio improving layer corresponds to the gap between the light-emitting bodies, the light color conversion area corresponds to the light-emitting bodies, and the display device is obtained.

The present invention relates to the technical field of optical display, and specially to an optical module, a display screen comprising the optical module, a display system, and a traffic information system. The optical module comprises a light source assembly, a first optical assembly, and a second optical assembly. Light emitted from the first optical assembly enters the second optical assembly through a first surface and exits through a second surface, wherein the first surface is a flat surface, whereas the second surface is a curved surface; and the curved surface enables the light to present a convergence effect in a longitudinal direction along a second axis. The optical module provided in the present invention features uniform light emission and high light emission efficiency, and by means of adjusting the distribution of light in the longitudinal direction, the light can be deflected downward into a visible region as much as possible, thereby improving the emission efficiency of the light. When external interfering light, such as sunlight, enters a lens, at least some of the incident external light can be guided to a non-visible region via a light trap, thereby reducing light interference and enhancing display contrast.

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 display module and a display device, and belongs to the technical field of display, the display module comprises a substrate, a reflective layer and a shading layer, and a plurality of pixel units arranged on the substrate are used for emitting light and displaying pictures. The first light-transmitting holes formed in the reflective layer and the second light-transmitting holes formed in the shading layer are used for transmitting light emitted by the pixel units to the outside, the reflective layer and the shading layer are arranged on the substrate in a stacked mode, the surface of the reflective layer can reflect the light emitted by the pixel units, the light emitted by the pixel units is mixed again, the display brightness is improved, and the display effect is improved. The shading layer is used for shading the substrate and improving the display contrast.

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.

An eye-protection COB LED display screen capable of improving the display effect is characterized in that the eye-protection COB LED display screen comprises a circuit substrate, LED luminous bodies, a light transmitting part, a light blocking part and a blue light part, and the LED luminous bodies are distributed in an array mode and welded to the circuit substrate; the light-transmitting part is arranged on the circuit substrate, and the LED luminous body is wrapped in the light-transmitting part; the light blocking part is distributed on the light transmitting part and located on the periphery of the upper portion of each LED luminous body, and the light blocking part is made of black materials; the blue light part is arranged in the light blocking part and located in the light emitting direction of the LED luminous body. Wherein the light transmitting part is used for protecting the LED luminous bodies, the light blocking part is used for physically isolating light interference of the adjacent LED luminous bodies, avoiding the moire phenomenon and meanwhile improving the display contrast ratio and brightness uniformity, and the blue light part is used for resisting blue light and improving the eye protection effect. The eye-protection COB LED display screen capable of improving the display effect has the advantages of being simple in structure, practical in function, high in practicability and suitable for being popularized vigorously.

In some embodiments, a head-mounted, near-eye display system comprises a stack of waveguides having integral spacers separating the waveguides. The waveguides may each include diffractive optical elements that are formed simultaneously with the spacers by imprinting. The spacers are disposed on one major surface of each of the waveguides and indentations are provided on an opposite major surface of each of the waveguides. The indentations are sized and positioned to align with the spacers, thereby forming a self-aligned stack of waveguides. Tops of the spacers may be provided with light scattering features, anti-reflective coatings, and / or light absorbing adhesive to prevent light leakage between the waveguides. As seen in a top-down view, the spacers may be elongated along the same axis as the diffractive optical elements. The waveguides may include structures (e.g., layers of light absorbing materials, rough surfaces, light out-coupling optical elements, and / or light trapping microstructures) along their edges to mitigate reflections and improve the display contrast.

The invention relates to the technical field of display devices, in particular to a preparation method of a light-color conversion layer of a display device, and the light-color conversion layer is obtained by the following steps: pasting a color film on a light-emitting surface of a luminous body in the display device, removing a transparent substrate in the color film, and remaining a light-color conversion area on the surface of the display device, namely the light-color conversion layer. The removal of the transparent substrate is beneficial to reducing optical crosstalk between the pixels, so that the influence on the display contrast of the display device is reduced.

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.