CN220626814U - Display device with flexible color baffle - Google Patents

Abstract

The utility model relates to the field of displays, in particular to a display device with a flexible color baffle, which comprises a display and the flexible color baffle, wherein the flexible color baffle is arranged in front of the display and further comprises a scattering layer; the display displays by means of pixel illumination; the display device with the flexible color baffle is characterized in that a plurality of transparent plastic-gas air interfaces are arranged in the transparent film lamination, and reflection generally exists on the air interfaces, and the reflection conforms to the change rule of the reflectivity along with the incident angle, namely, the reflection has lower reflectivity and higher transmissivity for light rays with small incident angle, and the reflection has higher reflectivity and lower transmissivity for light rays with large incident angle, so that shielding of display light rays can be effectively reduced, and energy consumption is reduced.

Description

Display device with flexible color baffle

Technical Field

The present utility model relates to the field of displays, and more particularly to a display device with a flexible color baffle.

Background

Displays that rely on pixel (including display segments, characters) illumination for display (e.g., TFT liquid crystal displays, OLED displays, backlit segments, or character type liquid crystal displays) generally have a black base, while the housings of many household appliances are designed to have a light soft hue (hereinafter "soft hue") such as white, milky white, pink, etc., and when such displays are used in such household appliances, the black base of the display is often difficult to match with the soft hue of the household appliance.

Therefore, the soft color baffle is covered in front of the display, and the soft color baffle can penetrate through the picture of the display, and can scatter external light to form soft ground color, so that the soft ground color can be matched with household appliances with soft color.

Such soft color barriers are typically used to obtain a soft base color by scattering ambient light with a scattering layer in order to achieve the desired brightness of the soft base color. The reflective layer is generally disposed inside the scattering layer, and the reflective layer is generally a semi-reflective film plated inside the flexible color baffle, which has high manufacturing cost and can block most of display light (light emitted by display pixels), so that the display energy consumption needs to be designed very high to ensure the display brightness.

Therefore, it is necessary to provide a display device with a flexible color barrier to solve the above-mentioned problems.

Disclosure of Invention

The present utility model is directed to overcoming at least one of the above-mentioned drawbacks (shortcomings) of the prior art, and providing a display device with a flexible color baffle, which does not require a semi-reflective film to be coated on the inner side of the flexible color baffle, has low manufacturing cost, and can reduce shielding of display light and reduce energy consumption of the display.

In order to solve the technical problems, the technical scheme of the utility model is as follows: the display device with the soft color baffle comprises a display, the soft color baffle, a scattering layer and a transparent layer, wherein the soft color baffle is arranged in front of the display;

the display displays by means of pixel illumination;

the flexible color baffle is also provided with a transparent film lamination layer for forming reflection, the inner side of the scattering layer where the transparent film lamination layer is positioned is formed by laminating a plurality of layers of transparent films, and an air film is mixed between the adjacent transparent films.

Further, the vertical angle light transmittance of the scattering layer is 20% -30%.

Further, the transparent film is a transparent plastic film.

Further, the number of the transparent films is 5 to 15 layers.

Further, in the transparent film laminate, edges of the transparent films are bonded to each other.

Further, in the transparent film laminate, adjacent transparent films are bonded by glue dots.

Further, the glue sites are uniformly distributed.

Further, the occupied area of the glue sites of each layer is not more than 5% of the lamination area.

Further, the glue sites of the different layers are staggered with respect to each other.

Further, the transparent film lamination layer further comprises a first adhesive layer, and the transparent film lamination layer is adhered to the inner side of the soft color baffle plate through the first adhesive layer.

Still further, a second glue layer is included, which adheres the transparent film stack to the outside of the display.

Further, the Shore hardness of the transparent film is not less than 60A.

Still further, the transparent film has a frosted surface.

Further, the surface of the transparent film is coated with a hydrophobic coating.

Further, the edge of the transparent film laminate is provided with a sealing structure.

Further, the thickness of the transparent film is not less than 3 μm.

Still further, the transparent film has a thickness of not more than 50 μm.

Further, the display is provided with a light condensing structure for condensing display light to a narrower angle in front of the display.

Still further, the display includes a backlight, and the light condensing structure is a light condensing film disposed within the backlight.

Compared with the prior art, the technical scheme of the utility model has the beneficial effects that:

in the display device with the flexible color baffle, the transparent films can be tightly adhered and overlapped with each other through the constraint of the shell of the display device to form a transparent film lamination, besides, the transparent films can also be mutually fixed through another connecting structure to form the transparent film lamination, in the transparent film lamination, the adjacent transparent films are not adhered or at least are not completely adhered, so that an air film is clamped between the adjacent transparent films, the air film is an air interlayer formed by air entering a gap between the adjacent transparent films, the air film exists, a plurality of air interfaces of transparent plastic-gas exist in the transparent film lamination, reflection exists in the air interfaces, and the reflection of the air interfaces is overlapped, so that the overall reflectivity can reach the brightness required by soft ground color. Therefore, according to the design, the semi-reflecting film does not need to be plated on the inner side of the flexible color baffle, and the manufacturing cost is low. In addition, the reflection of the air interface follows the change rule of the reflectivity along with the incidence angle, namely, the light with small incidence angle has lower reflectivity and higher transmissivity, and the light with large incidence angle has higher reflectivity and lower transmissivity.

Drawings

Fig. 1 is a schematic view of a display device with a flexible color baffle according to the present utility model.

Fig. 2 is an exploded view of a display device with a flexible color baffle according to the present utility model.

Fig. 3 is a schematic view of a scattering structure when external light is incident in the present utility model.

Fig. 4 is a schematic structural diagram of the present utility model after the first adhesive layer and the second adhesive layer are disposed.

Fig. 5 is a schematic structural view of the present utility model after the sealing structure is disposed.

FIG. 6 is a schematic diagram showing the structure of the present utility model when light is emitted.

In the figure, 1 is a display, 2 is a soft color baffle, 3 is a scattering layer, 4 is a transparent film lamination, 5 is a transparent film, 6 is a gas film, 7 is a transparent lens, 8 is a glue point, 9 is a first glue layer, 10 is a second glue layer, 11 is a condensing film, 12 is a sealing structure, and 13 is a backlight.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, so to speak, the two elements are communicated internally. It will be understood by those of ordinary skill in the art that the terms described above are in the specific sense of the present utility model. The technical scheme of the utility model is further described below with reference to the accompanying drawings and examples.

As shown in fig. 1-2, a display device with a flexible color baffle comprises a display 1 and a flexible color baffle 2, wherein the flexible color baffle 2 is arranged in front of the display 1 and further comprises a scattering layer 3; the display 1 displays by means of pixel illumination; the flexible color baffle 2 is also provided with a transparent film lamination 4 for forming reflection, the inner side of the scattering layer 3 where the transparent film lamination 4 is positioned is formed by laminating a plurality of layers of transparent films 5, and an air film 6 is mixed between the adjacent transparent films 5.

Specifically, the display 1 may be an inactive light emitting display (such as a liquid crystal display) that emits light by means of the backlight 13, or an active light emitting display (such as an OLED or an LED display) that emits light by itself, and the display 1 may be an array display, especially an active array display (such as a TFT-LCD), or a character or pen segment display (such as a passively driven TN, STN, VA liquid crystal display, or an LED nixie tube display).

The flexible color baffle 2 is generally composed of a transparent lens 7 and a scattering layer 3, wherein the transparent lens 7 may be a glass or plastic lens (such as PMMA, PC, PET, PVC lens), the scattering layer 3 is generally disposed on the inner side of the transparent lens 7, so that the scattering layer 3 is closer to the display 1, and the display blur can be reduced, and the scattering layer 3 may be a light-transmitting coating of flexible color (such as white or pink) and may be disposed on the inner side of the transparent lens 7 by printing, spraying, etc., for example: it may be soft semi-transparent ink or soft resin coating, and in general, the scattering layer 3 may be a light-transmitting layer with scattering particles, such as fine glass particles, silicon oxide particles, and titanium oxide particles, distributed therein, so that the scattering properties thereof may be changed by the proportion and thickness of the scattering particles, such as preferably the vertical angle light transmittance of 20% -30% (the light transmission of the scattering layer includes light transmission at a vertical angle and light transmission at a non-vertical angle, especially large angle, with higher vertical angle light transmittance, and lower scattering properties, but is beneficial for the transmission of a display screen). When the flexible color baffle 2 is pink, a certain pigment or pigment may be mixed into the scattering layer 3, so that the scattering layer presents pink color, the transparent films 5 can be mutually adhered and overlapped to form a transparent film laminate 4 by the constraint of the shell of the display device, besides, the transparent films 5 can also be mutually fixed to form the transparent film laminate 4 by another connecting structure, in the transparent film laminate 4, the adjacent transparent films 5 are not adhered, or at least incompletely adhered, so that the air film 6 is sandwiched between the adjacent transparent films 5, the air film 6 is generally an air interlayer formed by air entering into a gap between the adjacent transparent films 5, and a plurality of air interfaces of transparent plastic-gas exist in the transparent film laminate 4, and reflection exists on the air interfaces, wherein the reflection follows the law of the change of the reflectivity along with the incident angle, namely, the light with low reflectivity and high transmittance for the light with the large incident angle and the light with high reflectivity and low transmittance for the incident angle.

As shown in fig. 3, since the scattering layer 3 is provided, when external light enters the L1-ray display device, a small part of the light is scattered by the scattering layer, and a large part of the light is scattered outside the display device (contributes to the brightness of a certain flexible color baffle), while a large part of the light enters the transparent film laminate 4 by scattering at various large angles a, according to the change rule of the reflectivity along with the incident angle, the reflectivity of the light L2 at the large angles of the light at each air interface of the transparent film laminate is very high, and a plurality of air interfaces participate in reflection, so that most of the light can be reflected back to the scattering layer, and the light exits (L3) after being scattered for the second time by the scattering layer, thereby ensuring the brightness degree of the flexible color baffle.

Because a plurality of air interfaces participate in reflection, the reflectivity is very high, and the display device does not need to be provided with a reflecting layer on the inner side of the scattering layer, so that a coating process of the reflecting layer is omitted, and the manufacturing cost of the display device is reduced.

The preferable scheme is as follows:

the transparent film 5 is preferably a transparent plastic film, and may specifically be a transparent plastic film such as PET, PVC, PC, PMMA, CPI (colorless polyimide). The plastic film has low cost and is convenient for die cutting processing.

The number of transparent films 5 is preferably 5 to 15, whereby the transparent film stack 4 has a sufficient reflectivity to give the flexible color barrier 2 a sufficient brightness.

As shown in fig. 4, the edges of the transparent films 5 are preferably bonded to each other, specifically, the edges of the transparent films 5 are bonded by hot melt (assuming that the transparent films are plastic films), or may be bonded by gluing or the like. Thus, the transparent film laminate 4 forms an integral film layer, making the display device more convenient to assemble.

As shown in fig. 5, preferably, in the transparent film laminate 4, adjacent transparent films 5 are bonded by glue sites 8 (e.g. hot melt glue sites, silicone glue sites), whereby the transparent film laminate 4 forms a unitary film layer, so that the display device is more convenient to assemble, preferably the glue sites 8 are evenly distributed, whereby their effect on the laminate reflectivity is evenly distributed and not perceptible, preferably the area occupied by each glue site 8 (i.e. glue site between certain adjacent transparent films) is not more than 5% of the laminate area, whereby its effect on the laminate reflectivity is less and not perceptible. Further, it is preferable that the glue points of different layers are staggered, namely, the glue points are not overlapped, so that the overlarge change of the reflectivity of the overlapped positions of the glue points is avoided.

As shown in fig. 4 and 5, when the transparent film laminate is a monolithic film layer, it preferably further includes a first adhesive layer 9, where the first adhesive layer 9 adheres the transparent film laminate to the inside of the flexible color baffle 2, or preferably further includes a second adhesive layer 10, where the second adhesive layer 10 adheres the transparent film laminate 4 to the outside of the display, and further preferably includes both the first adhesive layer 9 and the second adhesive layer 10, where the transparent film laminate further forms an adhesive layer between the flexible color baffle 2 and the display 1, and where the first adhesive layer 9 and the second adhesive layer 10 are generally transparent adhesive layers, for example: may be a layer of silica gel or acrylic resin.

In order to avoid the adhesion of adjacent transparent films to each other and the disappearance of the air film therebetween, it is preferable that the shore hardness (shore) of the transparent film 5 is not less than 60A, and in addition, it is preferable that the transparent film 5 has a frosted surface or that the transparent film surface is coated with a hydrophobic coating.

In order to avoid adhesion caused by the entry of moisture and other impurities between the transparent films 5, the edges of the transparent film laminate 4 are preferably further provided with a sealing structure 12, which may be an adhesive seal formed by hot melting the edges of the transparent film laminate, or a sealing compound (such as silica gel, as shown in fig. 5) covering the edges of the transparent film laminate.

Preferably, the thickness of the transparent film 5 is not less than 3 μm. The thickness of the film is larger than the coherence length of natural light, so that color shift is not easy to occur due to film interference, and the influence of the color shift on the color of the flexible color baffle 2 is avoided.

Preferably, the thickness of the transparent film 5 is not more than 50 μm, whereby blurring of the display screen due to excessive thickness of the entire transparent film stack 4 can be avoided.

As shown in fig. 4 and 5, the display is preferably provided with a light condensing structure for condensing the display light to a narrower angle in front of the display, i.e. for concentrating its light intensity distribution more on a smaller angle than perpendicular to the display, and when the display is provided with a backlight, the light condensing structure is preferably arranged inside the backlight, in particular, it may be a light condensing film (such as BEF series optical film of 3M company), and when the display is an active light emitting display, the light condensing structure may be arranged on the outer side of the display, for example, it may be a light condensing film 11 or a micro lens film (a film containing a plurality of micro lenses) stuck on the outer side of the display. Therefore, as shown in fig. 6, most of the display light L4 has a smaller exit angle for each air interface within the transparent film stack 4, and according to the law of the change of the reflectivity with the incident angle, the reflectivity of the transparent film stack is lower and the transmissivity is higher, so that the brightness of the display screen is improved, the shielding of the display light is reduced, and the energy consumption of the display is reduced.

In the drawings, the positional relationship is described for illustrative purposes only and is not to be construed as limiting the present patent; it is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (19)

1. The utility model provides a display device with gentle look baffle, includes display and gentle look baffle, gentle look baffle sets up in the display the place ahead, its characterized in that: further comprising a scattering layer;

the display displays by means of pixel illumination;

the flexible color baffle is also provided with a transparent film lamination layer for forming reflection, the inner side of the scattering layer where the transparent film lamination layer is positioned is formed by laminating a plurality of layers of transparent films, and an air film is mixed between the adjacent transparent films.

2. The display device with a flexible color baffle according to claim 1, wherein: the vertical angle light transmittance of the scattering layer is 20% -30%.

3. The display device with a flexible color baffle according to claim 2, wherein: the transparent film is a transparent plastic film.

4. A display device with a flexible color baffle according to claim 3, wherein: the number of the transparent films is 5-15 layers.

5. The display device with a flexible color baffle according to claim 1, wherein: in the transparent film laminate, edges of the transparent films are bonded to each other.

6. The display device with a flexible color baffle according to claim 1, wherein: in the transparent film laminate, adjacent transparent films are bonded by glue dots.

7. The display device with flexible baffles according to claim 6, wherein: the glue points are uniformly distributed.

8. The display device with flexible baffles according to claim 6, wherein: the occupied area of each layer of glue points is not more than 5% of the laminated area.

9. The display device with flexible baffles according to claim 6, wherein: the glue sites of different layers are staggered with each other.

10. The display device with a flexible color baffle according to claim 5 or 6, wherein: the transparent film lamination layer further comprises a first adhesive layer, and the transparent film lamination layer is adhered to the inner side of the flexible color baffle plate through the first adhesive layer.

11. The display device with a flexible color baffle according to claim 5 or 6, wherein: the display also comprises a second adhesive layer, wherein the second adhesive layer adheres the transparent film lamination to the outer side of the display.

12. The display device with a flexible color baffle according to claim 1, wherein: the Shore hardness of the transparent film is not less than 60A.

13. The display device with a flexible color baffle according to claim 1, wherein: the transparent film has a frosted surface.

14. The display device with a flexible color baffle according to claim 1, wherein: the surface of the transparent film is coated with a hydrophobic coating.

15. The display device with a flexible color baffle according to claim 1, wherein: the edge of the transparent film lamination is provided with a sealing structure.

16. The display device with a flexible color baffle according to claim 1, wherein: the thickness of the transparent film is not less than 3 μm.

17. The display device with a flexible color baffle according to claim 1, wherein: the thickness of the transparent film is not more than 50 μm.

18. The display device with a flexible color baffle according to claim 1, wherein: the display is provided with a light condensing structure for condensing display light to a narrower angle in front of the display.

19. The flexible baffle-panel display device of claim 18 wherein: the display includes a backlight, and the light condensing structure is a light condensing film disposed within the backlight.