Display panel and display device

A technology for display panels and substrates, which can be used in instruments, optics, nonlinear optics, etc., and can solve problems such as poor display quality at wide viewing angles.

Pending Publication Date: 2020-11-13
KUSN INFOVISION OPTOELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings and deficiencies in the prior art, the object of the present invention is to provide a display panel and a display device to solve the problem of wide viewing angle display quality in the prior art when the display panel is switched between wide viewing angle and narrow viewing angle. bad question

Method used

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Experimental program
Comparison scheme
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Embodiment 1

[0035] figure 1 It is a schematic structural diagram of the display device in the first embodiment of the present invention at a wide viewing angle. figure 2 It is a schematic structural diagram of the display device in Embodiment 1 of the present invention at a narrow viewing angle.

[0036] Such as figure 1 and figure 2 As shown, a display panel provided in Embodiment 1 of the present invention includes a first dimming box 10 and a display liquid crystal box 20 stacked on top of each other. On the upper side, of course, the first dimming box 10 can also be arranged on the lower side of the display liquid crystal box 20 .

[0037] Wherein, the display liquid crystal cell 20 includes a color filter substrate 21, an array substrate 22 disposed opposite to the color filter substrate 21, and a liquid crystal layer 23 located between the color filter substrate 21 and the array substrate 22. In this embodiment, the liquid crystal layer 23 adopts Positive liquid crystal molecu...

Embodiment 2

[0050] image 3 It is a schematic diagram of the structure of the display device in the second embodiment of the present invention at a wide viewing angle. The display panel provided by Embodiment 2 of the present invention is the same as Embodiment 1 ( figure 1 and figure 2 ) are basically the same display panel, the difference is that in this embodiment, the light source 31 adopts a side-type light source, the backlight module 30 also includes a light guide plate 33, the light source 31 is arranged on one side of the light guide plate 33, and the light guide plate 33 is provided with a plurality of reflective slopes 331. The reflective slopes 331 are used to reflect the light emitted by the light source 31 back in a direction perpendicular to the display surface. Different reflective slopes 331 have different slopes according to the distance from the light source 31.

[0051] Those skilled in the art should understand that the remaining structures and working principles o...

Embodiment 3

[0053] Figure 4 It is a schematic diagram of the structure of the display device in the third embodiment of the present invention at a wide viewing angle, Figure 5 yes Figure 4 Schematic diagram of the polarization direction of the selective polarizing layer in, Figure 6 It is a schematic structural diagram of the display device in the third embodiment of the present invention at a narrow viewing angle, Figure 7 yes Figure 6 Schematic illustration of the polarization directions of the middle selective polarizing layer. The display panel provided by Embodiment 2 of the present invention is the same as Embodiment 1 ( figure 1 and figure 2 ) are basically the same display panel, the difference is that in this embodiment, the second substrate 12 is provided with a second electrode 121 and a third electrode 122 in different layers, and the first selective polarizing layer 13 includes a second positive The long axes of the second positive liquid crystal molecules 132 an...

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Abstract

The invention discloses a display panel and a display device. The display panel comprises a first dimming box and a display liquid crystal box. The first dimming box comprises a first substrate, a second substrate and a first selective polarization layer located between the first substrate and the second substrate. The polarization direction of the first selective polarization layer can be selectively changed, a refraction layer and a polymer liquid crystal layer are arranged on the first substrate; a groove for accommodating the polymer liquid crystal layer is formed in the refraction layer;the long axis of liquid crystal molecules in the polymer liquid crystal layer is parallel to the first substrate and the second substrate, the polarization direction of the first selective polarization layer is parallel to the long axis of the liquid crystal molecules in the polymer liquid crystal layer at a wide viewing angle, and at the moment, the refractive index of the polymer liquid crystallayer is larger than that of the refraction layer and has a light scattering effect. At a narrow viewing angle, the polarization direction of the first selective polarization layer is parallel to theshort axis of liquid crystal molecules in the polymer liquid crystal layer, and the refractive index of the polymer liquid crystal layer is smaller than or equal to the refractive index of the refraction layer.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a display panel and a display device. Background technique [0002] With the continuous advancement of liquid crystal display technology, the viewing angle of the display has been expanded from about 120° to more than 160°. While enjoying the visual experience brought by the large viewing angle, people also hope to effectively protect commercial secrets and personal privacy. Avoid commercial loss or embarrassment caused by information leakage on the screen. Therefore, in addition to the requirement for a wide viewing angle, in many occasions, the display device is also required to have a function of switching between a wide viewing angle and a narrow viewing angle. [0003] At present, it is mainly used to attach a louver film to the display screen to switch between wide and narrow viewing angles. When anti-peeping is required, the louver film can be used to cover...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335G02F1/1334G02F1/1343G02F1/13G02F1/1347
CPCG02F1/133528G02F1/1334G02F1/134309G02F1/1323G02F1/1347
Inventor 魏明贺杨珊珊柯中乔
Owner KUSN INFOVISION OPTOELECTRONICS
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