42results about How to "Display quality degradation" patented technology

The invention discloses a display substrate and a preparation method thereof, a display panel and a display device. The display substrate comprises a plurality of display areas arranged in an array and non-display areas located between the display areas, wherein a display structure is arranged in each display area and is used for displaying a picture; and the non-display areas are transparent, and photochromic graphics are arranged in the non-display areas and are used for adjusting the light transmittance of the non-display areas according to the illumination intensity of the received light. According to the display substrate, the photochromic graphics are arranged in the non-display areas and can adjust the light transmittance of the non-display areas according to the illumination intensity of the received light, so that the brightness of the area for displaying a relatively dark image originally on the displayed picture is not improved due to the influence of external ambient light in a high-brightness external environment, thereby effectively ensuring the contrast of the displayed picture and improving the display quality.

The invention provides a Mura compensation circuit, a Mura compensation method, a driving circuit and a display device. The Mura compensation circuit comprises a vertical Mura compensation unit and/or a horizontal Mura compensation unit, wherein the vertical Mura compensation unit provides corresponding gamma voltages for a vertical block-shaped Mura area and a vertical non-Mura area of a display panel to compensate a vertical Mura phenomenon; and the horizontal Mura compensation unit provides corresponding gate driving signals and/or corresponding charging and discharging control signals to a horizontal block-shaped Mura area and a horizontal non-Mura area of the display panel to compensate a horizontal Mura phenomenon. Thus, different areas of the display panel can have the same display effects, the drop of the display quality caused by impedance differences at different positions in the display panel can be improved, the picture quality is enhanced, and wide promotion and wide use can be facilitated.

On the side of a light outgoing surface (43) of a light guide plate (4), a resin frame (2) is arranged with at least one optical sheet (3) therebetween. A protruding section (25) facing an end surface (45) adjacent to the light outgoing surface of the light guide plate is arranged on the resin frame. The protruding section is elastically deformable to the side opposite to the light guide plate which the protruding section faces. Since the protruding section elastically deforms and absorbs the stretch quantity of the light guide plate, the light guide plate does not deform. Therefore, light guide plate deformation generated due to relative dimensional change of the light guide plate due to changes of temperature and humidity can be eliminated over a long period of time.

A liquid crystal display element (1) is configured so that a TFT substrate (2) and a CF substrate (3) provided with a CF layer (7) sandwich a liquid crystal layer (4). The TFT substrate (2) and the CF substrate (3) are provided with a liquid crystal alignment film (12). In the liquid crystal display element (1), a sealing material (16) uses a UV ray curable resin, and even in the regions where pixels are formed, UV rays for curing the sealing material (16) are radiated and provided. The liquid crystal display element (1) is configured using the liquid crystal alignment film (12) which contains a polyimide film synthesized from a diamine compound of a specific structure. When the sealing material (16) is cured, even if the regions where pixels are formed are irradiated with UV rays, the degradation of functionality is suppressed.

A liquid crystal display apparatus (display device) (1), which has a liquid crystal panel (display unit) (2) for displaying information, comprises a source driver (data wire driving unit) (23) that includes an amplifier output unit (33) that outputs source signals (data signals), which are in accordance with information to be displayed on the liquid crystal panel (2), to a plurality of source wires (Sm-S(m+m)). The liquid crystal display apparatus (1) further comprises a redundant wire (Y) provided as a reserve wire of a source wire (S); and a redundant amplifier (36) that can output a sourcesignal, which is in accordance with information to be displayed on the liquid crystal panel (2), to the redundant wire (Y). The redundant amplifier (36) outputs, to the redundant wire (Y) and a source wire (Sm) connected thereto, a corresponding source signal at a timing that is earlier than the amplifier output unit (33) by a predetermined time interval.

In at least one embodiment of the disclosure, a liquid crystal device comprises a plurality of conductive patterns formed of a conductive film in a peripheral region between an image display region and a sealing member. The conductive patterns are formed at a same layer as a plurality of pixel electrodes. An insulation film is formed on a side facing a counter substrate so as to correspond to the plurality of conductive patterns and a plurality of pixel electrodes. Peripheral electrodes are formed in a region overlapping the plurality of conductive patterns in a plan view on a side on which the counter substrate is located so as to correspond to the insulation film in the peripheral region.

The invention discloses a preparation method of a fluorescent material for a PDP, the preparation method comprises the following steps: selecting a fluorescent material with a molecular general formula of Y0.9-x (La, Sc, Bi) xBO3: Eu < 3 + >, wherein in the formula, x is more than or equal to 0 and less than or equal to 0.1, and preparing the fluorescent material into phosphor particles for later use; preparing a nano SiO2 microsphere suspension for later use; and mixing and uniformly stirring the phosphor particles and the nano SiO2 microsphere suspension according to a mass ratio of 4: 1-1: 1.5, carrying out low-temperature evaporation drying at 40-60 DEG C to remove moisture, and carrying out heat treatment at 500-550 DEG C in a protective atmosphere to obtain the phosphor material coated with the protection layer. The color purity and the brightness of the prepared fluorescent material both reach a relatively high level, and the use requirements of PDP (Plasma Display Panel) can be met; moreover, the phosphor material adopts nano SiO2 microsphere particles as the coating protection layer, the protection layer is uniform and compact, the influence of a hydrothermal environment on the phosphor material is remarkably reduced on the premise of ensuring good luminescence and light transmission performance, the brightness maintenance of the phosphor material is facilitated, and the display quality of the plasma flat panel display screen is prevented from being reduced.