Display panel and display device

Abstract

The invention relates to a display panel and a display device. The display panel comprises a backlight module, a liquid crystal dimming layer and a liquid crystal display layer which are sequentiallystacked from bottom to top, wherein the liquid crystal dimming layer comprises a light orientation layer and a polymer dispersed liquid crystal layer, wherein the light orientation layer is latticed so as to divide the liquid crystal dimming layer into a plurality of micro cavities, and the polymer dispersed liquid crystal layer fills the micro cavities. The display device includes the display panel. According to the display panel and the display device of the invention, the light orientation layer is adopted to replace a traditional supporting column so as to be used for supporting and blocking light, so that light emitted by the backlight module during the lit display of areas is prevented from entering the liquid crystal layer, and therefore, crosstalk between the areas when the areas are in lit display can be decreased, and a boundary yellowing phenomenon is avoided, and the contrast ratio of the lit display of the areas is improved.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a display panel and a display device. Background technique [0002] When the existing display device lights up a certain area of ​​the display panel, since the light emitted by the backlight module passes through the liquid crystal layer corresponding to the area, the light will be scattered in the area around the area, resulting in The phenomenon of "yellow border" will seriously affect the display quality of the picture. [0003] On the one hand, if figure 1 As shown, if the backlight module uses a direct-lit sub-millimeter light-emitting diode (MiniLED) light panel, including multiple areas arranged in an array, for example figure 1 In area 1-area 25, when local dimming display is realized, the illuminated area 13 is equivalent to a point light source, and the light will flow to the surrounding unlit areas 7, 8, 9, 12, 14, 17, 18, and 19 spread, so there will be a ...

AI Technical Summary

Problems solved by technology

[0002] When the existing display device lights up a certain area of ​​the display panel, since the light emitted by the backlight module passes through the liquid crystal layer corresponding to the area, the light will be scattered in the area around the area, resulting in The phenomenon of "yellow border" will seriously affect the display quality of the picture

[0003] On the one hand, if figure 1 As shown, if the backlight module uses a direct-lit sub-millimeter light-emitting diode (MiniLED) light panel, including multiple areas arranged in an array, for example figure 1 In area 1-area 25, when local dimming display is realized, the illuminated area 13 is equivalent to a point light source, and the light will flow to the surrounding unlit areas 7, 8, 9, 12, 14, 17, 18, and 19 spread, so there will be a "yellow border" phenomenon

[0004] On the other hand, if figure 2 As shown, if the backlight module adopts the side-type backlight module 91 and cooperates with the polymer dispersed liquid crystal layer (PDLC) 92 to realize the side-type display, a certain area is lit, and the side-type backlight module 91 emits light as a whole. There is light at a large angle, and this structure cannot eliminate stray light and interfering light at a large angle. When the light passes through the illuminated area 922, the light enters the polymer dispersed liquid crystal layer and will flow to the surrounding unlit area 921 , 923 scattering, wherein the light propagation path is indicated by an arrow, which causes the phenomenon of "yellow border" on the LCD screen 93

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