阅读说明：本技术 显示面板及显示装置 (Display panel and display device ) 是由 黄东晨 林悦霞 李鸿基 于 2019-10-28 设计创作，主要内容包括：本发明公开了一种显示面板及显示装置,所述显示面板包括阵列基板,以及设置于所述阵列基板上的彩膜基板,其中所述彩膜基板上设置有光致变色玻璃层,且当紫外激光照射至所述光致变色玻璃层时产生一变色区域,以对经过所述变色区域的光线产生滤光作用,所述显示面板还包括散射粒子,分布于所述光致变色玻璃层上。本发明通过在显示面板中设置光致变色玻璃层,以使激光照射于显示面板上时,产生一变色区域,并对通过的光线产生滤光作用,使得变色区域内呈现预设颜色,再经散射粒子的散射作用,以减少镜面反射角度的眩光现象,增大了激光笔的大视角漫反射,形成了大视角可见的激光点,实现了激光笔的大角度可视性。(The invention discloses a display panel and a display device, wherein the display panel comprises an array substrate and a color film substrate arranged on the array substrate, wherein a photochromic glass layer is arranged on the color film substrate, a color-changing area is generated when ultraviolet laser irradiates on the photochromic glass layer so as to filter light passing through the color-changing area, and the display panel also comprises scattering particles distributed on the photochromic glass layer. According to the invention, the photochromic glass layer is arranged in the display panel, so that when laser irradiates the display panel, a color changing area is generated, and the light passing through the color changing area is subjected to a filtering effect, so that a preset color is presented in the color changing area, and then the glare phenomenon of a mirror reflection angle is reduced through the scattering effect of scattering particles, the large-visual-angle diffuse reflection of the laser pen is increased, a large-visual-angle visible laser spot is formed, and the large-angle visibility of the laser pen is realized.)

1. A display panel, comprising:

an array substrate;

the color film substrate is arranged on the array substrate;

the photochromic glass layer is arranged on the color film substrate, and generates a color-changing area when ultraviolet laser irradiates the photochromic glass layer so as to filter light rays passing through the color-changing area; and

and the scattering particles are distributed on the photochromic glass layer.

2. The display panel of claim 1, wherein the photochromic glass layer comprises photochromic glass and a polarizer attached to a side of the photochromic glass away from the array substrate.

3. The display panel of claim 2, wherein the material of the photochromic glass comprises at least one of: borate glasses doped with silver halide, copper halide or cadmium halide, borate glasses doped with silver molybdate or silver tungstate, and rare earth ion activated silicate glasses.

4. The display panel of claim 1, wherein the photochromic glass layer comprises a glass substrate and a photochromic polarizer attached to a side of the glass substrate away from the array substrate.

5. The display panel according to claim 4, wherein the photochromic polarizer comprises a pressure-sensitive adhesive, a first composite film, a polarizing layer, a second composite film, a photochromic layer and a protective layer, which are sequentially arranged on the glass substrate.

6. The display panel according to claim 5, wherein a material of the photochromic layer comprises an organic photochromic material or an inorganic photochromic material;

the organic photochromic material comprises a spiropyran compound, a fulgide compound or a diarylethene compound, and the inorganic photochromic material comprises tungsten trioxide, molybdenum trioxide, titanium dioxide, a cerium-doped calcium fluoride crystal, a mixed crystal of calcium iodide and mercury iodide, copper chloride or silver chloride.

7. The display panel according to claim 1, wherein the photochromic glass layer comprises a glass substrate, and a photochromic film and a polarizer sequentially disposed on a side of the glass substrate away from the array substrate.

8. The display panel according to claim 7, wherein a material of the photochromic thin film comprises an organic photochromic material or an inorganic photochromic material;

the organic photochromic material comprises a spiropyran compound, a fulgide compound or a diarylethene compound, and the inorganic photochromic material comprises tungsten trioxide, molybdenum trioxide, titanium dioxide, a cerium-doped calcium fluoride crystal, a mixed crystal of calcium iodide and mercury iodide, copper chloride or silver chloride.

9. The display panel according to claim 1, wherein the scattering particles are disposed on a surface of the photochromic glass layer facing away from the array substrate, and a material of the scattering particles comprises silicon dioxide or polymethyl methacrylate.

10. A display device characterized in that the display device comprises the display panel according to any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of display, in particular to a display panel and a display device.

Background

With the development of Display technology, flat panel Display devices such as Liquid Crystal Displays (LCDs) have advantages of high image quality, power saving, thin body, and wide application range, and thus are widely used in various consumer electronics products such as mobile phones, televisions, personal digital assistants, digital cameras, notebook computers, and desktop computers, and become the mainstream of Display devices.

The conference integrated machine and the electronic whiteboard which are applied to commercial display have wide market demands, and the LCD display has the characteristic of being visible by a laser pen for the conference integrated machine and the electronic whiteboard, so that conference interaction can be realized.

And traditional display module assembly, because its LCD surface reflectivity is higher, the laser pen is mainly specular reflection and transmission on its surface, and the visibility effect that leads to the all directions of laser pen is relatively poor, and in specular reflection's visual angle, the laser pen causes the glare to the user easily, and transmission light accounts for more than 90% in all light, also can take place specular reflection, consequently leads to relatively poor user experience.

Disclosure of Invention

The invention provides a display panel and a display device, which can enable a laser pen to generate color change and play a role in filtering light when the laser pen irradiates on the display panel by arranging a photochromic glass layer in the display panel, so as to solve the technical problems that the laser pen irradiates on the display panel to generate reflection and transmission, the watching of a user is influenced, and the displaying is further influenced in the prior art.

In order to solve the above problems, the technical scheme provided by the invention is as follows:

the present invention provides a display panel, including:

an array substrate;

the color film substrate is arranged on the array substrate;

the photochromic glass layer is arranged on the color film substrate, and generates a color-changing area when ultraviolet laser irradiates the photochromic glass layer so as to filter light rays passing through the color-changing area; and

and the scattering particles are distributed on the photochromic glass layer.

According to a preferred embodiment of the present invention, the photochromic glass layer includes photochromic glass and a polarizer attached to one side of the photochromic glass away from the array substrate.

According to a preferred embodiment of the present invention, the material of the photochromic glass comprises at least one of the following: borate glasses doped with silver halide, copper halide or cadmium halide, borate glasses doped with silver molybdate or silver tungstate, and rare earth ion activated silicate glasses.

According to a preferred embodiment of the present invention, the photochromic glass layer includes a glass substrate and a photochromic polarizer attached to one side of the glass substrate away from the array substrate.

According to a preferred embodiment of the present invention, the photochromic polarizer includes a pressure sensitive adhesive, a first composite film, a polarizing layer, a second composite film, a photochromic layer and a protective layer sequentially disposed on the glass substrate.

According to a preferred embodiment of the present invention, the material of the photochromic layer includes an organic photochromic material or an inorganic photochromic material;

the organic photochromic material comprises a spiropyran compound, a fulgide compound or a diarylethene compound, and the inorganic photochromic material comprises tungsten trioxide, molybdenum trioxide, titanium dioxide, a cerium-doped calcium fluoride crystal, a mixed crystal of calcium iodide and mercury iodide, copper chloride or silver chloride.

According to a preferred embodiment of the present invention, the photochromic glass layer includes a glass substrate, and a photochromic film and a polarizer sequentially disposed on a side of the glass substrate away from the array substrate.

According to a preferred embodiment of the present invention, the material of the photochromic thin film comprises an organic photochromic material or an inorganic photochromic material;

the organic photochromic material comprises a spiropyran compound, a fulgide compound or a diarylethene compound, and the inorganic photochromic material comprises tungsten trioxide, molybdenum trioxide, titanium dioxide, a cerium-doped calcium fluoride crystal, a mixed crystal of calcium iodide and mercury iodide, copper chloride or silver chloride.

According to a preferred embodiment of the present invention, the scattering particles are disposed on a surface of the photochromic glass layer facing away from the array substrate, and a material of the scattering particles includes silicon dioxide or polymethyl methacrylate.

According to the above object of the present invention, there is provided a display device including the display panel.

The invention has the beneficial effects that: according to the invention, the photochromic glass layer is arranged in the display panel, so that when laser irradiates the display panel, a color changing area is generated, and the light passing through the color changing area is subjected to a filtering effect, so that a preset color is presented in the color changing area, and then the glare phenomenon of a mirror reflection angle is reduced through the scattering effect of scattering particles, the large-visual-angle diffuse reflection of the laser pen is increased, a large-visual-angle visible laser spot is formed, and the large-angle visibility of the laser pen is realized.

Drawings

In order to illustrate the embodiments or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for a person skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of another display panel according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of another display panel according to an embodiment of the present invention.

Detailed Description

The following description of the various embodiments refers to the accompanying drawings that illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in the present invention, such as [ upper ], [ lower ], [ front ], [ rear ], [ left ], [ right ], [ inner ], [ outer ], [ side ], are only referring to the directions of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention. In the drawings, elements having similar structures are denoted by the same reference numerals.

The invention aims at the technical problems that the visibility effect of the laser pen in all directions is poor and the display is influenced because the laser pen irradiates the display panel to generate mirror reflection and transmission in the existing display panel and display device, and the defect can be solved.

An embodiment of the present invention provides a display panel to solve the above-mentioned defects, and the display panel includes:

an array substrate;

the color film substrate is arranged on the array substrate;

the photochromic glass layer is arranged on the color film substrate, and generates a color-changing area when ultraviolet laser irradiates the photochromic glass layer so as to filter light rays passing through the color-changing area; and

and the scattering particles are distributed on the photochromic glass layer.

Specifically, referring to fig. 1, the display panel 10 includes an array substrate 102, a color filter substrate disposed on the array substrate 102, and a liquid crystal layer 103 disposed between the array substrate 102 and the color filter substrate.

The color film substrate is provided with a photochromic glass layer 101, and when ultraviolet laser irradiates the photochromic glass layer 101, a color changing area is generated so as to filter light passing through the color changing area.

In addition, scattering particles 104 are distributed on the side of the photochromic glass layer 101 opposite to the array substrate 102 to generate a scattering effect on the passing light.

In the implementation and application process, because the surface reflectivity of the existing liquid crystal display is higher, the laser pen is mainly subjected to mirror reflection and transmission on the surface, so that the visibility effect of the laser pen in all directions is poor, in the viewing angle of specular reflection, the laser pen easily causes glare to the user, and the transmitted light accounts for more than 90% of all the light, and also undergoes specular reflection, thus resulting in poor user experience, in the display panel provided by the embodiment of the invention, the photochromic glass layer is arranged, when the laser of the laser pen irradiates on the display panel, a color-changing area is generated, and the light passing through the color-changing area is filtered, and then passes through the scattering particles on the upper layer to form large-view visibility, so that the glare phenomenon of mirror reflection angle is solved, the large-view diffuse reflection of the laser pen is increased, and the large-angle visibility of the laser pen is realized.

Furthermore, a photochromic structure is arranged in the photochromic glass layer, and the photochromic structure comprises photochromic glass, a photochromic polaroid or a photochromic film, namely, the photochromic structure can be arranged in any one of the photochromic structures or in other feasible arrangements, so that the technical effect of realizing the large-angle visibility of the laser pen is achieved.

As shown in fig. 1, the scattering particles 104 are disposed on a surface of the photochromic glass layer 101 facing away from the array substrate 102, and a material of the scattering particles 104 includes silicon dioxide or polymethyl methacrylate.

The structure of the photochromic glass layer will be described with reference to specific examples.