CN220020023U - Reflective liquid crystal display panel - Google Patents

Abstract

The utility model provides a reflective liquid crystal display panel, which comprises an array substrate, an opposite substrate arranged opposite to the array substrate and a liquid crystal layer arranged between the array substrate and the opposite substrate, wherein the array substrate comprises a first substrate, a reflecting layer and an alignment layer are arranged on one side, close to the opposite substrate, of the first substrate, the alignment layer and the reflecting layer are adjacently stacked up and down, the surface, close to one side of the alignment layer, of the reflecting layer is of a planar structure, and the surfaces of two opposite sides of the alignment layer are of planar structures; the opposite substrate comprises a second substrate and a light scattering film layer arranged on the second substrate, wherein the light scattering film layer is an electric control haze liquid crystal film layer, and the electric control haze liquid crystal film layer has a fog state and a transparent state. The surface of the reflecting layer of the reflecting liquid crystal display panel is of a planar structure, so that the surface of the alignment layer is of a planar structure, and the alignment effect of the alignment layer and the display effect of the reflecting liquid crystal display panel are prevented from being influenced.

Description

Reflective liquid crystal display panel

Technical Field

The utility model relates to the technical field of display, in particular to a reflective liquid crystal display panel.

Background

Liquid crystal display devices (Liquid Crystal Display, abbreviated as LCDs) are a mainstream product in the market with their excellent performance and mature technology. Liquid crystal display devices are classified according to the type of light source, and may be classified into transmissive, reflective, and transflective (also referred to as transflective). The liquid crystal display device mainly comprises a color film substrate and a TFT (Thin Film Transistor ) array substrate which are oppositely arranged, and liquid crystal is filled between the color film substrate and the TFT array substrate. The existing reflective liquid crystal display device and transflective liquid crystal display device can be applied outdoors to make full use of ambient light, i.e., to reflect external light to obtain all (reflective) or part of light sources (transflective) required for displaying images.

As shown in fig. 1, the conventional reflective liquid crystal display panel includes an array substrate 51, a counter substrate 52 disposed opposite to the array substrate 51, and a liquid crystal layer 53 disposed between the array substrate 51 and the counter substrate 52, wherein the array substrate 51 is provided with a reflective layer 511 for reflecting external light and an alignment layer 514 (i.e., PI film layer) for aligning liquid crystal molecules in the liquid crystal layer 53, and the alignment layer 514 is disposed on the reflective layer 511. The reflective layer 511 includes a planar layer 512 and a metal reflective layer 513, which are stacked, the metal reflective layer 513 is formed on the planar layer 512, and the alignment layer 514 is formed on the metal reflective layer 513. In order to achieve the effect of diffuse reflection (scattering the light) and increase the exit angle of the light, and thus the viewing angle range, the reflective layer 511 is generally configured to have an uneven structure, and the uneven structure affects not only the alignment of the alignment layer 514 (because the reflective layer 511 has an uneven structure, the alignment layer 514 also has an uneven structure, thereby affecting the alignment of the liquid crystal molecules), but also the deflection of the liquid crystal molecules near the position, thereby affecting the display effect (Domain phenomenon occurs). Meanwhile, since the shape and structure of the reflective layer 511 are fixed, the display viewing angle of the reflective liquid crystal display panel is also fixed, thereby limiting the application scene thereof.

Disclosure of Invention

The utility model aims to provide a reflective liquid crystal display panel, wherein the surface of a reflective layer is of a planar structure, so that the surface of an alignment layer is also of a planar structure, thereby avoiding influencing the alignment effect of the alignment layer and the display effect of the reflective liquid crystal display panel (avoiding Domain phenomenon).

The utility model provides a reflective liquid crystal display panel, which comprises an array substrate, a counter substrate arranged opposite to the array substrate and a liquid crystal layer arranged between the array substrate and the counter substrate, wherein the array substrate comprises a first substrate, a reflecting layer and an alignment layer are arranged on one side, close to the counter substrate, of the first substrate, the alignment layer and the reflecting layer are adjacently stacked up and down, the alignment layer is positioned on one side, close to the counter substrate, of the reflecting layer, the surface, close to one side of the alignment layer, of the reflecting layer is of a planar structure, and the surfaces of the opposite sides of the alignment layer are of planar structures; the opposite substrate comprises a second substrate and a light scattering film layer arranged on the second substrate, and the light scattering film layer can scatter light; the light scattering film layer is an electric control haze liquid crystal film layer, and the electric control haze liquid crystal film layer has a fog state and a transparent state; when the electric control haze liquid crystal film layer is in a haze state, the electric control haze liquid crystal film layer can break up light, and the haze of the electric control haze liquid crystal film layer is adjustable; when the electric control haze liquid crystal film layer is in a transparent state, the electric control haze liquid crystal film layer has a transmission function.

In one implementation, the electrically controlled haze liquid crystal film is a PDLC electrically controlled haze liquid crystal film, a PNLC electrically controlled haze liquid crystal film, or a PSCT electrically controlled haze liquid crystal film.

In one implementation, the electrically controlled haze liquid crystal film layer includes a first electrode layer, a second electrode layer, and a polymer liquid crystal layer sandwiched between the first electrode layer and the second electrode layer, the polymer liquid crystal layer having a haze state and a transparent state; when the polymer liquid crystal layer is in a fog state, the polymer liquid crystal layer can break up light, and the fog degree of the polymer liquid crystal layer can be changed by adjusting the voltage applied between the first electrode layer and the second electrode layer; when the polymer liquid crystal layer is in a transparent state, the polymer liquid crystal layer has a transmission function.

In one implementation, the reflective layer includes a flat layer and a metal reflective layer, which are stacked adjacently above and below, and the metal reflective layer is located between the flat layer and the alignment layer; the surface of the flat layer, which is close to one side of the metal reflecting layer, is of a planar structure, and the surfaces of the two opposite sides of the metal reflecting layer are of planar structures.

In one implementation, the light-diffusing film layer is located on a side of the second substrate away from the array substrate; or the light scattering film layer is positioned on one side of the second substrate close to the array substrate.

In one implementation manner, a common electrode is disposed on a side, close to the array substrate, of the second substrate, the light-scattering film layer is located on a side, close to the array substrate, of the second substrate, and the light-scattering film layer is located between the second substrate and the common electrode.

In one implementation manner, a common electrode is arranged on one side, close to the array substrate, of the second substrate, and the surface, close to one side, of the common electrode, is of a planar structure.

In one implementation manner, TFTs and pixel electrodes are further arranged on the first substrate, which are distributed in an array, on a side, which is close to the opposite substrate, the pixel electrodes are electrically connected with the TFTs, the pixel electrodes and the TFTs are both located between the first substrate and the reflective layer, and a common electrode matched with the pixel electrodes is arranged on a side, which is close to the array substrate, of the second substrate.

In one implementation, a circular polarizer is disposed on a side of the second substrate far from the array substrate.

In one implementation, the circular polarizer is provided with a 1/2 wave plate.

According to the reflective liquid crystal display panel provided by the utility model, the surface of the reflective layer, which is close to one side of the alignment layer, is in a planar structure, so that when the alignment layer is arranged on the reflective layer, the surfaces of the opposite sides of the alignment layer are also in a planar structure, thereby avoiding the influence on the alignment function and the deflection of liquid crystal molecules due to the uneven surface of the alignment layer, and further avoiding the influence on the display effect of the reflective liquid crystal display panel (avoiding the phenomenon of Domain). Meanwhile, the light scattering film layer is arranged in the opposite substrate, and can scatter light, so that the original reflection layer with the rugged structure is replaced to achieve the scattering effect, and the emergent angle and the visual angle range of light are enlarged.

Meanwhile, the light scattering film layer is an electric control haze liquid crystal film layer, the haze of the electric control haze liquid crystal film layer is adjustable, the scattering effect of the electric control haze liquid crystal film layer on light can be changed by adjusting the haze of the electric control haze liquid crystal film layer, the range of a wide viewing angle is further adjusted, different use requirements are met, and the reflective liquid crystal display panel has the advantages of high contrast and high brightness.

Drawings

Fig. 1 is a schematic cross-sectional view of a reflective liquid crystal display panel in the prior art.

Fig. 2 is a schematic cross-sectional view of a reflective liquid crystal display panel according to an embodiment of the utility model.

Fig. 3 is a schematic view of an optical path structure when the electrically controlled haze liquid crystal film layer is in a transparent state in an embodiment of the present utility model.

Fig. 4 is a schematic view of an optical path structure when the electrically controlled haze liquid crystal film layer is in a haze state in the embodiment of the present utility model.

Fig. 5 is a schematic cross-sectional view of a counter substrate according to another embodiment of the present utility model.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

The terms "first," "second," "third," "fourth" and the like in the description and in the claims, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

The terms upper, lower, left, right, front, rear, top, bottom and the like (if any) in the description and in the claims are used for descriptive purposes and not necessarily for describing relative positions of structures in the figures and in describing relative positions of structures. It should be understood that the use of directional terms should not be construed to limit the scope of the utility model as claimed.

As shown in fig. 2 to 4, an embodiment of the present utility model provides a reflective liquid crystal display panel, which uses external ambient light as a light source. The reflective liquid crystal display panel includes an array substrate 1, a counter substrate 2 disposed opposite to the array substrate 1, and a liquid crystal layer 3 disposed between the array substrate 1 and the counter substrate 2. The array substrate 1 includes a first substrate 11, and a reflective layer 14 and an alignment layer 15 (i.e., PI film layer) are disposed on a side of the first substrate 11 near the opposite substrate 2, where the reflective layer 14 is used for reflecting external light, and the alignment layer 15 is used for aligning liquid crystal molecules in the liquid crystal layer 3. The alignment layer 15 and the reflective layer 14 are stacked up and down adjacently, the alignment layer 15 is located on one side of the reflective layer 14 close to the opposite substrate 2, the surface of one side of the reflective layer 14 close to the alignment layer 15 is in a planar structure, and the surfaces of the upper and lower opposite sides of the alignment layer 15 are both in planar structures. The counter substrate 2 includes a second substrate 21 and a light-diffusing film layer 22 provided on the second substrate 21, and the light-diffusing film layer 22 can diffuse light.

The light-diffusing film 22 is an electrically controlled haze liquid crystal film 220, and the electrically controlled haze liquid crystal film 220 has a haze state and a transparent state. When the electrically controlled haze liquid crystal film 220 is in a haze state, the electrically controlled haze liquid crystal film 220 can scatter light (i.e., the electrically controlled haze liquid crystal film 220 has a scattering effect on light), and the haze of the electrically controlled haze liquid crystal film 220 can be changed by adjusting the voltage applied by the electrically controlled haze liquid crystal film 220 (i.e., the scattering effect of the electrically controlled haze liquid crystal film 220 on light is changed). When the haze of the electrically controlled haze liquid crystal film 220 is reduced to a certain value, the electrically controlled haze liquid crystal film 220 is in a transparent state, and the electrically controlled haze liquid crystal film 220 has a transmission function, and at this time, the electrically controlled haze liquid crystal film 220 hardly changes the outgoing angle (or the change amount is small) of the light.

Specifically, in the present embodiment, since the electrically controlled haze liquid crystal film layer 220 has a haze state and a transparent state, the reflective liquid crystal display panel has two modes of diffuse reflection and specular reflection for light. As shown in fig. 4, when the electrically-controlled haze liquid crystal film 220 is in a haze state, the electrically-controlled haze liquid crystal film 220 can scatter light, and the electrically-controlled haze liquid crystal film 220 cooperates with the reflective layer 14 to achieve an effect similar to diffuse reflection, so as to increase an outgoing angle of light (outgoing light) and further increase a viewing angle range (similar to a wide viewing angle mode, that is, the central brightness of the reflective liquid crystal display panel is lower and the side view angle is better); meanwhile, the scattering effect of the electric control haze liquid crystal film layer 220 on light can be changed by adjusting the haze of the electric control haze liquid crystal film layer, and the range of a wide viewing angle is further adjusted. As shown in fig. 3, when the electrically-controlled haze liquid crystal film 220 is in a transparent state, the electrically-controlled haze liquid crystal film 220 has a transmission function, and the electrically-controlled haze liquid crystal film 220 cooperates with the reflective layer 14 to achieve an effect similar to specular reflection, and at this time, the electrically-controlled haze liquid crystal film 220 hardly changes the exit angle (or changes less) of the light, so that the viewing angle range is smaller (similar to a narrow viewing angle mode, i.e., the center brightness of the reflective liquid crystal display panel is higher and the side view angle is worse).

Specifically, in the reflective liquid crystal display panel provided in this embodiment, the surface of the reflective layer 14 near one side of the alignment layer 15 is configured as a planar structure, so when the alignment layer 15 is disposed on the reflective layer 14, the surfaces of the opposite sides of the alignment layer 15 are also configured as planar structures, so as to avoid affecting the alignment function and the deflection of the liquid crystal molecules due to the uneven surface of the alignment layer 15, and further avoid affecting the display effect of the reflective liquid crystal display panel (avoiding Domain phenomenon). Meanwhile, by providing the light-diffusing film layer 22 in the opposite substrate 2, the light-diffusing film layer 22 can diffuse light, thereby realizing the effect of scattering instead of the original reflection layer with the rugged structure and increasing the emergent angle and the viewing angle range of light. Meanwhile, the light scattering film layer 22 is an electric control haze liquid crystal film layer 220, the haze of the electric control haze liquid crystal film layer 220 is adjustable, the scattering effect of the electric control haze liquid crystal film layer 220 on light can be changed by adjusting the haze of the electric control haze liquid crystal film layer, the range of a wide viewing angle is further adjusted, different use requirements are met, and the reflective liquid crystal display panel has the advantages of high contrast ratio and high brightness.

As an embodiment, the electrically controlled haze liquid crystal film 220 is a PDLC (polymer dispersed liquid crystal) electrically controlled haze liquid crystal film, a PNLC (polymer network liquid crystal) electrically controlled haze liquid crystal film, or a PSCT (stabilized polymer cholesteric texture) electrically controlled haze liquid crystal film. In this embodiment, the electrically controlled haze liquid crystal layer 220 is a PDLC electrically controlled haze liquid crystal layer. The above three types of electrically controlled haze liquid crystal film layers 220 have the function of electrically controlling the haze.

Specifically, the liquid crystal in the PDLC electric control haze liquid crystal film layer is polymer dispersed liquid crystal, the optical axis of small microdroplets formed by liquid crystal molecules is in free orientation, the refractive index of the microdroplets is not matched with that of a matrix, and when light passes through the matrix, the microdroplets are strongly scattered to be in an opaque milky state or semitransparent state (namely, a haze state); the application of the electric field adjusts the optical axis orientation of the liquid crystal droplets, which when matched in refractive index, assume a transparent state, and the electric field is removed, which in turn restores the original astigmatic state.

The liquid crystal in the PNLC electric control haze liquid crystal film layer is polymer network liquid crystal, and the polymer network liquid crystal is obtained by mixing low-molecular liquid crystal with prepolymer, and carrying out polymerization reaction under certain conditions so that liquid crystal molecules are contained in a network. Because of orientation induction, the liquid crystal is uniformly arranged, the polymer monomer also has liquid crystal phase, under guest-host effect, the liquid crystal is uniformly arranged, at the moment, polymerization phase separation is carried out, and polymer network liquid crystal with consistent arrangement is obtained, and the polymer network liquid crystal is in a transparent state without voltage; after voltage is applied, the negative liquid crystals tend to be arranged in parallel due to the action of an electric field, and at the moment, the anchoring action of the polymer network on liquid crystal molecules can rotate the structure, so that the liquid crystals are arranged in a disordered fog state, and the scattering effect is achieved.

The working principle of the PDLC electric control haze liquid crystal film layer, the PNLC electric control haze liquid crystal film layer or the PSCT electric control haze liquid crystal film layer can be referred to in the prior art, and is not repeated here.

As shown in fig. 3 and 4, as an embodiment, the electrically controlled haze liquid crystal film layer 220 includes a first electrode layer 221, a second electrode layer 222, and a polymer liquid crystal layer 223 interposed between the first electrode layer 221 and the second electrode layer 222, the polymer liquid crystal layer 223 having a haze state and a transparent state. When the polymer liquid crystal layer 223 is in a haze state, the polymer liquid crystal layer 223 can break up light, and the haze of the polymer liquid crystal layer 223 can be changed by adjusting a voltage applied between the first electrode layer 221 and the second electrode layer 222; when the polymer liquid crystal layer 223 is in a transparent state, the polymer liquid crystal layer 223 has a transmissive function. When the electrically controlled haze liquid crystal film layer 220 is a PDLC electrically controlled haze liquid crystal film layer, a PNLC electrically controlled haze liquid crystal film layer, or a PSCT electrically controlled haze liquid crystal film layer, the corresponding polymer liquid crystal layer 223 is a polymer dispersed liquid crystal layer, a polymer network liquid crystal layer, or a stable polymer cholesteric fabric liquid crystal layer, respectively.

For example, as shown in fig. 4, when a first voltage is applied between the first electrode layer 221 and the second electrode layer 222 (for example, when the polymer liquid crystal layer 223 is a polymer dispersed liquid crystal layer, the first voltage may be 2V to 3V), the polymer liquid crystal layer 223 is in a fog state, and after entering the reflective liquid crystal display panel, the external light is reflected by the reflective layer 14 and then scattered by the polymer liquid crystal layer 223, so that the exit angle of the light (exit light) is increased, and a diffuse reflection mode is realized; as shown in fig. 3, when a second voltage is applied between the first electrode layer 221 and the second electrode layer 222 (for example, when the polymer liquid crystal layer 223 is a polymer dispersed liquid crystal layer, the second voltage may be 6V to 9V), the polymer liquid crystal layer 223 is in a transparent state, and after the external light enters the reflective liquid crystal display panel, the external light is reflected by the reflective layer 14 and directly passes through the polymer liquid crystal layer 223, so that the light emergent angle is almost unchanged (or the change amount is smaller), and the specular reflection mode is realized.

As an embodiment, the material of the first electrode layer 221 and the second electrode layer 222 may be a transparent conductive material, such as Indium Tin Oxide (ITO), indium Zinc Oxide (IZO), or aluminum zinc oxide.

As another embodiment, the light diffusing film layer 22 may be an upper diffusion sheet (not shown), which has a good scattering effect on light and can diffuse the light, but does not have a haze adjusting function, and thus cannot realize a function of adjusting the viewing angle. The specific structure and function of the upper diffusion sheet may be referred to in the art, and will not be described herein.

As shown in fig. 2, as an embodiment, the reflective layer 14 includes a flat layer 141 and a metal reflective layer 142 stacked adjacently above and below, the metal reflective layer 142 is located on one side of the flat layer 141 close to the opposite substrate 2, and the metal reflective layer 142 is located between the flat layer 141 and the alignment layer 15, that is, the alignment layer 15 is disposed on the metal reflective layer 142. The surface of the flat layer 141 near one side of the metal reflective layer 142 is a planar structure, and the surfaces of the upper and lower opposite sides of the metal reflective layer 142 are both planar structures, so that the surface of the alignment layer 15 is also a planar structure.

As shown in fig. 2, as an embodiment, the first substrate 11 is further provided with TFTs 12 (i.e., thin film transistors) and pixel electrodes 13 distributed in an array on a side near the opposite substrate 2, the pixel electrodes 13 are electrically connected to the TFTs 12, the pixel electrodes 13 and the TFTs 12 are both located between the first substrate 11 and the reflective layer 14, and the second substrate 21 is provided with a common electrode 24 matched with the pixel electrodes 13 on a side near the array substrate 1. The specific functions and the mutual coordination relationship of the TFT12, the pixel electrode 13 and the common electrode 24 can be referred to the prior art, and are not described herein.

Specifically, as shown in fig. 2, in the present embodiment, the array substrate 1 specifically includes:

a first substrate base plate 11;

a first metal layer formed on the first substrate base plate 11, wherein the first metal layer includes a gate electrode 121 and a scan line (not shown), the gate electrode 121 being connected to the scan line;

a gate insulating layer 122 formed on the first substrate base plate 11 and covering the gate electrode 121 and the scan line;

an active layer 123 formed on the gate insulating layer 122;

a second metal layer formed on the gate insulating layer 122, wherein the second metal layer includes a source electrode 124, a drain electrode 125, and a data line (not shown), the source electrode 124 and the drain electrode 125 are respectively connected to the active layer 123, and the source electrode 124 is connected to the data line;

a first insulating layer 126 formed on the gate insulating layer 122, the first insulating layer 126 covering the source electrode 124, the drain electrode 125, the data line, and the active layer 123;

a pixel electrode 13 formed on the first insulating layer 126, the pixel electrode 13 being connected to the drain electrode 125 through a via hole (not shown) on the first insulating layer 126;

a second insulating layer 127 formed on the first insulating layer 126 and covering the pixel electrode 13;

a planarization layer 141 formed on the second insulating layer 127;

a metal reflective layer 142 formed on the planarization layer 141;

an alignment layer 15 formed on the metal reflective layer 142.

In one embodiment, the gate electrode 121, the source electrode 124, the drain electrode 125, and the metal reflective layer 142 may be made of a metal such as Cr, W, ti, ta, mo, al, cu or an alloy, or may be a composite film composed of a plurality of metal films. The material of the active layer 123 may be amorphous silicon (a-si), polysilicon (p-si), metal oxide semiconductor (IGZO, ITZO), etc. The material of the common electrode 24 and the pixel electrode 13 may be a transparent conductive material such as Indium Tin Oxide (ITO), indium Zinc Oxide (IZO), or aluminum zinc oxide. The planarization layer 141 may be made of an organic material such as a resin. The material of the gate insulating layer 122 may be silicon nitride, and the material of the first insulating layer 126 and the second insulating layer 127 may be silicon oxynitride, silicon oxide, silicon nitride, or the like.

As shown in fig. 2, as an embodiment, the light-diffusing film layer 22 is located on a side of the second substrate 21 away from the array substrate 1 (i.e., the light-diffusing film layer 22 is located outside the cell).

As shown in fig. 5, as another embodiment, the light-diffusing film layer 22 is located on the side of the second substrate 21 close to the array substrate 1 (i.e., the light-diffusing film layer 22 is located in a cell), and at this time, the light-diffusing film layer 22 is located between the second substrate 21 and the common electrode 24.

As shown in fig. 2, as an embodiment, a circular polarizer 23 (POL) is disposed on the side of the second substrate 21 away from the array substrate 1, and the circular polarizer 23 (composed of a linear polarization and a 1/4 wave plate) is specifically located between the second substrate 21 and the light-diffusing film layer 22. The circular polarizer 23 plays a role in polarizing light, and for incident light, the circular polarizer 23 plays a role of a polarizer; for outgoing light, the circular polarizer 23 functions as an analyzer, thereby realizing a normal display function. Meanwhile, a 1/2 wave plate (not shown) may be added to the circular polarizer 23, thereby improving the problem of yellow display color.

As an embodiment, a color resist layer and a black matrix (not shown) are further provided on the second base substrate 21, thereby realizing a color display function.

As an embodiment, an alignment layer (not shown) is also provided on the second substrate 21 on a side close to the array substrate 1, and the alignment layer is located on a side of the common electrode 24 close to the array substrate 1. The alignment layer on the second substrate 21 cooperates with the alignment layer 15 on the first substrate 11 to align the liquid crystal molecules in the liquid crystal layer 3.

As shown in fig. 2, as an embodiment, the surface of the common electrode 24 on the side close to the array substrate 1 is a planar structure. Since the alignment layer is also disposed on the second substrate 21 and is formed on the common electrode 24, the surface of the common electrode 24 near the side of the array substrate 1 is configured to be a planar structure, so that the surface of the alignment layer on the common electrode 24 is also configured to be a planar structure, thereby avoiding the influence on the alignment function and the deflection of the liquid crystal molecules due to the uneven surface of the alignment layer.

As shown in fig. 2, as an embodiment, the upper and lower opposite surfaces of the common electrode 24 are each in a planar structure.

In the reflective liquid crystal display panel provided in this embodiment, the surface of the reflective layer 14 near one side of the alignment layer 15 is configured as a planar structure, so when the alignment layer 15 is disposed on the reflective layer 14, the surfaces of the opposite sides of the alignment layer 15 are also configured as a planar structure, thereby avoiding affecting the alignment function and the deflection of the liquid crystal molecules due to the uneven surface of the alignment layer 15, and further avoiding affecting the display effect of the reflective liquid crystal display panel (avoiding Domain phenomenon). Meanwhile, by providing the light-diffusing film layer 22 in the opposite substrate 2, the light-diffusing film layer 22 can diffuse light, thereby realizing the effect of scattering instead of the original reflection layer with the rugged structure and increasing the emergent angle and the viewing angle range of light.

Meanwhile, the light scattering film layer 22 is an electric control haze liquid crystal film layer 220, the haze of the electric control haze liquid crystal film layer 220 is adjustable, the scattering effect of the electric control haze liquid crystal film layer 220 on light can be changed by adjusting the haze of the electric control haze liquid crystal film layer, the range of a wide viewing angle is further adjusted, different use requirements are met, and the reflective liquid crystal display panel has the advantages of high contrast ratio and high brightness.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (10)

1. The reflective liquid crystal display panel comprises an array substrate (1), an opposite substrate (2) arranged opposite to the array substrate (1) and a liquid crystal layer (3) arranged between the array substrate (1) and the opposite substrate (2), and is characterized in that the array substrate (1) comprises a first substrate (11), a reflecting layer (14) and an alignment layer (15) are arranged on one side, close to the opposite substrate (2), of the first substrate (11), the alignment layer (15) and the reflecting layer (14) are adjacently stacked up and down, the alignment layer (15) is positioned on one side, close to the opposite substrate (2), of the reflecting layer (14), the surface, close to one side of the alignment layer (15), of the reflecting layer (14) is of a planar structure, and the surfaces, opposite to the two sides, of the alignment layer (15), are of planar structures; the opposite substrate (2) comprises a second substrate (21) and a light scattering film layer (22) arranged on the second substrate (21), wherein the light scattering film layer (22) is an electric control haze liquid crystal film layer (220), and the electric control haze liquid crystal film layer (220) has a fog state and a transparent state; when the electric control haze liquid crystal film layer (220) is in a haze state, the electric control haze liquid crystal film layer (220) can break up light, and the haze of the electric control haze liquid crystal film layer (220) is adjustable; when the electric control haze liquid crystal film layer (220) is in a transparent state, the electric control haze liquid crystal film layer (220) has a transmission function.

2. The reflective liquid crystal display panel of claim 1, wherein the electrically controlled haze liquid crystal film (220) is a PDLC electrically controlled haze liquid crystal film, a PNLC electrically controlled haze liquid crystal film, or a PSCT electrically controlled haze liquid crystal film.

3. The reflective liquid crystal display panel according to claim 1, wherein the electrically controlled haze liquid crystal film layer (220) includes a first electrode layer (221), a second electrode layer (222), and a polymer liquid crystal layer (223) interposed between the first electrode layer (221) and the second electrode layer (222), the polymer liquid crystal layer (223) having a haze state and a transparent state; when the polymer liquid crystal layer (223) is in a fog state, the polymer liquid crystal layer (223) can break up light, and the fog degree of the polymer liquid crystal layer (223) can be changed by adjusting the voltage applied between the first electrode layer (221) and the second electrode layer (222); when the polymer liquid crystal layer (223) is in a transparent state, the polymer liquid crystal layer (223) has a transmissive function.

4. The reflective liquid crystal display panel according to claim 1, wherein the reflective layer (14) includes a flat layer (141) and a metal reflective layer (142) stacked adjacently up and down, the metal reflective layer (142) being located between the flat layer (141) and the alignment layer (15); the surface of the flat layer (141) close to one side of the metal reflecting layer (142) is of a planar structure, and the surfaces of the two opposite sides of the metal reflecting layer (142) are of planar structures.

5. A reflective liquid crystal display panel according to claim 1, wherein the light diffusing film layer (22) is located at a side of the second substrate (21) remote from the array substrate (1); or, the light diffusion film layer (22) is positioned on one side of the second substrate (21) close to the array substrate (1).

6. The reflective liquid crystal display panel according to claim 5, wherein a common electrode (24) is disposed on the second substrate (21) at a side close to the array substrate (1), the light-diffusing film layer (22) is disposed on the second substrate (21) at a side close to the array substrate (1), and the light-diffusing film layer (22) is disposed between the second substrate (21) and the common electrode (24).

7. The reflective liquid crystal display panel according to claim 1, wherein a common electrode (24) is disposed on a side of the second substrate (21) close to the array substrate (1), and a surface of the common electrode (24) close to the side of the array substrate (1) is in a planar structure.

8. The reflective liquid crystal display panel according to claim 1, wherein a TFT (12) and a pixel electrode (13) are further disposed on the first substrate (11) near the opposite substrate (2) in an array, the pixel electrode (13) is electrically connected to the TFT (12), the pixel electrode (13) and the TFT (12) are both disposed between the first substrate (11) and the reflective layer (14), and a common electrode (24) matched with the pixel electrode (13) is disposed on the second substrate (21) near the opposite substrate (1).

9. A reflective liquid crystal display panel according to any of claims 1-8, characterized in that a circular polarizer (23) is arranged on the side of the second substrate (21) remote from the array substrate (1).

10. A reflective liquid crystal display panel according to claim 9, characterized in that the circular polarizer (23) is provided with a 1/2 wave plate.