Anti-reflection PNLC liquid crystal display screen

Abstract

The utility model discloses an anti-reflection PNLC liquid crystal display screen which comprises a lower substrate, an upper substrate, a rubber frame and PNLC liquid crystals, the upper substrate is arranged above the lower substrate, an anti-reflection coating is arranged on the upper surface of the upper substrate, and the anti-reflection coating comprises a first SiO2 layer, an MgF2 layer and a second SiO2 layer which are sequentially arranged on the upper surface of the upper substrate in an overlapped mode from bottom to top; the rubber frame is arranged between the lower substrate and the upper substrate; the PNLC liquid crystal is arranged in a space defined by the rubber frame, the lower substrate and the upper substrate. The upper surface of the upper substrate is provided with the anti-reflection plating layer, and the alternative superposition layer of the SiO2 layer and the MgF2 layer in the anti-reflection plating layer provides the anti-reflection optical performance. The refractive indexes of SiO2 and MgF2 are different, an optical interference layer can be formed through alternate superposition, light reflection is reduced, the transmittance is improved, and the situation that the viewing effect of human eyes is affected due to light reflection caused by external light is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a liquid crystal display technical field more specifically, relate to a kind of anti-reflection PNLC liquid crystal display. BACKGROUND

[0002] PNLC (Polymer Network Liquid Crystal) is the mode of polymer network liquid crystal, the liquid crystal in PNLC is distributed in polymer three-dimensional network, and forms continuous channel network.Compared with conventional LCD liquid crystal screen, the biggest advantage of PNLC screen is that polaroid is not needed, which can greatly reduce manufacturing cost and improve product competitiveness.But without polaroid, the surface glass of PNLC screen will be directly exposed to air, and under external light, it is extremely easy to cause light reflection and affect the viewing effect of human eye. SUMMARY

[0003] The technical problem to be solved by the utility model is how to provide an anti-reflection PNLC liquid crystal display to avoid the reflection of light under external light and affect the viewing effect of human eye.

[0004] The technical problem to be solved by the utility model is solved by the following technical scheme:

[0005] To solve the above technical problem, the utility model provides an anti-reflection PNLC liquid crystal display, which comprises a lower substrate, an upper substrate, a rubber frame and a PNLC liquid crystal, the upper substrate is arranged above the lower substrate, the upper surface of the upper substrate is provided with an anti-reflection plating layer, the anti-reflection plating layer comprises a first SiO2 layer, a MgF2 layer and a second SiO2 layer arranged in the upper surface of the upper substrate in sequence from bottom to top; the rubber frame is arranged between the lower substrate and the upper substrate; the PNLC liquid crystal is arranged in the space enclosed by the rubber frame, the lower substrate and the upper substrate.

[0006] As a preferred embodiment of the anti-reflection PNLC liquid crystal display provided by the utility model, a cover plate is arranged above the upper substrate, a ring groove is formed in the lower surface of the cover plate, the ring groove is located in the non-visible area, and the lower surface of the cover plate in the area enclosed by the ring groove is coated with optical glue.

[0007] As a preferred embodiment of the anti-reflection PNLC liquid crystal display provided by the utility model, the cross-sectional shape of the ring groove is trapezoidal.

[0008] As a preferred embodiment of the anti-reflection PNLC liquid crystal display provided by the utility model, the cross-sectional shape of the ring groove is isosceles trapezoidal.

[0009] As a preferred embodiment of the anti-reflection PNLC liquid crystal display screen provided by the utility model, the annular groove is an open groove with an outer width and an inner narrowness.

[0010] As a preferred embodiment of the anti-reflection PNLC liquid crystal display screen provided by the utility model, the depth of the annular groove is 0.1mm.

[0011] As a preferred embodiment of the anti-reflection PNLC liquid crystal display screen provided by the utility model, the inner surface of the annular groove is provided with a surface treatment layer for improving surface roughness.

[0012] As a preferred embodiment of the anti-reflection PNLC liquid crystal display screen provided by the utility model, the edge of the annular groove is provided with a chamfer.

[0013] As a preferred embodiment of the anti-reflection PNLC liquid crystal display screen provided by the utility model, the chamfer is a rounded chamfer.

[0014] As a preferred embodiment of the anti-reflection PNLC liquid crystal display screen provided by the utility model, the chamfer is a straight chamfer.

[0015] The utility model has the following beneficial effects:

[0016] Since the upper surface of the upper substrate is provided with an anti-reflection plating layer, the alternating superposition layer of the SiO2 layer and the MgF2 layer in the anti-reflection plating layer provides anti-reflection optical performance. The refractive indexes of SiO2 and MgF2 are different, and an optical interference layer can be formed by alternating superposition, the reflection of light is reduced, and the transmittance is improved, so that the reflection of light under external light is avoided to affect the viewing effect of the human eye. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the scheme in the application, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 The structure schematic view of the anti-reflection PNLC liquid crystal display screen provided by the utility model.

[0019] Figure 2 The Figure 1 The schematic view of the layering structure of the anti-reflection plating layer.

[0020] Figure 3 The structure schematic view of the embodiment 2.

[0021] Figure 4 TheFigure 3 Structure diagram of middle cover plate.

[0022] Brief description of drawings:

[0023] Lower substrate 1; upper substrate 2; rubber frame 3; PNLC liquid crystal 4; anti-reflection coating 5; first SiO2 layer 51; MgF2 layer 52; second SiO2 layer 53;

[0024] Cover plate 6; ring groove 61; optical glue 7. DETAILED DESCRIPTION

[0025] In order to enable personnel in the technical field to better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0026] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0027] In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second", "third" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0028] The utility model provides an anti -reflection PNLC liquid crystal display, it includes lower base plate, upper base plate, gum frame and PNLC liquid crystal, upper base plate sets up the top of lower base plate, the upper surface of upper base plate is provided with anti -reflection plating, anti -reflection plating includes the first SiO2 layer, MgF2 layer and second SiO2 layer that set up in the upper surface of upper base plate from below to above sequentially superimposed in order, the gum frame sets up between lower base plate with upper base plate, PNLC liquid crystal sets up in the space that gum frame, lower base plate and upper base plate enclose.

[0029] Because the upper surface of upper base plate is provided with anti -reflection plating, the alternating superimposed layer of SiO2 layer and MgF2 layer in anti -reflection plating provides the optical performance of anti -reflection, the refractive index of SiO2 and MgF2 is different, can form optical interference layer through the alternating superimposition, reduces the reflection of light, improves the transmittance, to avoid under the external light under the reflection of light and influence the viewing effect of human eye.

[0030] In order to make the personnel in the technical field better understand the scheme of the present application, the technical scheme in the embodiment of the present application will be clearly and completely described below in combination with the drawings. The utility model will be described in detail below in combination with the drawings and examples, the examples of the examples are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The examples described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as limiting the utility model.

[0031] Embodiment 1, please refer to Figure 1 And Figure 2 , the utility model provides an anti -reflection PNLC liquid crystal display, it includes lower base plate 1, upper base plate 2, gum frame 3 and PNLC liquid crystal 4, upper base plate 2 sets up the top of lower base plate 1, the upper surface of upper base plate 2 is provided with anti -reflection plating 5, anti -reflection plating 5 includes the first SiO2 layer 51, MgF2 layer 52 and second SiO2 layer 53 that set up in the upper surface of upper base plate 2 from below to above sequentially superimposed in order, gum frame 3 sets up between lower base plate 1 with upper base plate 2, PNLC liquid crystal 4 sets up in the space that gum frame 3, lower base plate 1 and upper base plate 2 enclose, because the upper surface of upper base plate 2 is provided with anti -reflection plating 5, the alternating superimposed layer of SiO2 layer and MgF2 layer in anti -reflection plating 5 provides the optical performance of anti -reflection, the refractive index of SiO2 and MgF2 is different, can form optical interference layer through the alternating superimposition, reduces the reflection of light, improves the transmittance, to avoid under the external light under the reflection of light and influence the viewing effect of human eye.

[0032] Embodiment 2, please refer to Figure 3 And Figure 4As a further optimization of embodiment 1, in the present embodiment, the upper substrate 2 is provided with a cover plate 6, the lower surface of the cover plate 6 is provided with a ring groove 61, the ring groove 61 is located in the non-visible area, and the lower surface of the cover plate 6 in the area enclosed by the ring groove 61 is coated with optical glue 7, that is, the ring groove 61 surrounds the optical glue 7, and the excess optical glue 7 can overflow into the ring groove 61 when coating the optical glue 7, thereby avoiding the overflow of the optical glue 7 to other areas.

[0033] Further, the cross-sectional shape of the ring groove 61 is trapezoidal, and more preferably, the cross-sectional shape of the ring groove 61 is isosceles trapezoidal, and the ring groove 61 is an open groove with a wide outer part and a narrow inner part, so that the optical glue 7 can stay in the ring groove 61 after entering the ring groove 61, thereby avoiding the overflow of the optical glue 7 to other areas.

[0034] Further, the depth of the ring groove 61 is 0.1mm, so as to provide sufficient overflow space for the optical glue 7 to avoid the overflow of the optical glue 7 to other areas.

[0035] Further, the inner surface of the ring groove 61 is provided with a surface treatment layer for improving the surface roughness, so that the optical glue 7 can be better attached in the ring groove 61, thereby avoiding the overflow of the optical glue 7 to other areas.

[0036] Further, the edge of the ring groove 61 is provided with a chamfer, which is a rounded chamfer or a straight chamfer, which not only removes burrs, but also makes the optical glue 7 flow into the ring groove 61 better, thereby avoiding the generation of bubbles.

[0037] In the present application, unless otherwise specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements or the interaction relationship between two elements, unless otherwise specified. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] Obviously, the above-described embodiments are only some embodiments but not all the embodiments of the present application, the preferred embodiments of the present application are shown in the drawings, but do not limit the patent scope of the present application. The present application can be implemented in many different forms, and conversely, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent replacements to some technical features therein. Any equivalent structure made by using the content of the specification and drawings, directly or indirectly applied to other related technical fields, is also within the patent protection scope of the present application.

Claims

1. An anti-reflective PNLC liquid crystal display screen, characterized in that, It includes: lower base plate; An upper substrate is disposed above the lower substrate. An anti-reflective coating is disposed on the upper surface of the upper substrate. The anti-reflective coating includes a first SiO2 layer, a MgF2 layer and a second SiO2 layer that are sequentially stacked on the upper surface of the upper substrate from bottom to top. A frame is disposed between the lower substrate and the upper substrate; A PNLC liquid crystal is disposed within the space enclosed by the frame, the lower substrate, and the upper substrate.

2. The anti-reflective PNLC liquid crystal display screen according to claim 1, characterized in that, A cover plate is provided above the upper substrate. An annular groove is formed on the lower surface of the cover plate. The annular groove is located in a non-visible area. Optical adhesive is coated on the lower surface of the cover plate within the area enclosed by the annular groove.

3. The anti-reflective PNLC liquid crystal display screen according to claim 2, characterized in that, The cross-sectional shape of the annular groove is trapezoidal.

4. The anti-reflective PNLC liquid crystal display screen according to claim 3, characterized in that, The cross-sectional shape of the annular groove is an isosceles trapezoid.

5. The anti-reflective PNLC liquid crystal display screen according to claim 2, characterized in that, The annular groove is an open groove that is wider on the outside and narrower on the inside.

6. The anti-reflective PNLC liquid crystal display screen according to claim 2, characterized in that, The depth of the annular groove is 0.1 mm.

7. The anti-reflective PNLC liquid crystal display screen according to claim 2, characterized in that, The inner surface of the annular groove is provided with a surface treatment layer to improve surface roughness.

8. The anti-reflective PNLC liquid crystal display screen according to claim 2, characterized in that, The edges of the annular groove are chamfered.

9. The anti-reflective PNLC liquid crystal display screen according to claim 8, characterized in that, The chamfer is a rounded corner.

10. The anti-reflective PNLC liquid crystal display screen according to claim 8, characterized in that, The chamfer is a right angle.

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