CN207867068U - The special light guide plate of TV liquid crystal modules of novel energy-conserving - Google Patents

Abstract

The utility model discloses a kind of special light guide plates of TV liquid crystal modules of novel energy-conserving, from the exit direction that is incident on of light, include altogether six layers, are followed successively by：First optical waveguide layer, its material is optical grade GPPS plastics, second optical waveguide layer, its material is nanoscale leaded light microballon, first anti-yellowing change layer, its material is ultra-violet absorber UV 327, second anti-yellowing change layer, its material is light stabilizer 622LD, the anti-yellowing change layer of third, its material is light stabilizer 770, 4th anti-yellowing change layer, its material is antioxidant 1010, the light-emitting surface of first optical waveguide layer is provided with coarse lines, coarse lines is gradual change dot bulge, close prism pattern or spacing prism pattern, the utility model passes through multilayered structure, and light-emitting surface processes coarse lines, by by light toward all angles spread project, make emergent light homogeneous soft, improve light source utilization rate, with brightness height, uniformity is good, it is at low cost, the advantage of high performance-price ratio.

Description

The special light guide plate of TV liquid crystal modules of novel energy-conserving

Technical field

The utility model is related to the photoelectricity planks of backlight display device, and in particular to a kind of TV liquid crystal modules of novel energy-conserving Special light guide plate.

Background technology

Existing light guide plate (light guide plate) is acrylic/PC plate material using optical grade, then with pole The hitech materials of high reflectance and not extinction stamp leaded light in the acryl plates bottom surface of optical grade with UV screen printing technologies Point.The light issued from lamp is drawn in the stop on optical grade acryl plates surface using optical grade acryl plates, works as light When being mapped to each light guiding points, reflected light can be spread toward all angles, then destroyed conditioned reflex and projected by light guide plate front.Pass through Various densitys, light guiding points not of uniform size, can make light guide plate uniformly light-emitting.But there are following 2 technologies to lack for this guide-lighting technology It falls into：1, printing plate tends not to use for a long time, it may appear that the problem of light-conductive rate degradation；2, production requirement is high, product is good Rate is low, production capacity is low, causes cost excessively high.

Start within nearest 2 years to carve production technology using light guide plate, engraving is physical technique, and light guide effect is substantially better than Printing plate.The especially specification of large format, light-conductive rate is more preferable, and performance is more stable.But there are other 2 technologies for this guide-lighting technology Defect：1, domestic engraving equipment precision at present on the market can not accomplish, need import equipment completely, and production efficiency is extremely low (less than the 10% of printing yield)；2, carved face is easy to happen xanthochromia.

Invention content

In order to solve the above technical problems, the utility model provides a kind of TV liquid crystal of the novel energy-conserving of structure novel The special light guide plate of module processes coarse lines by multilayered structure and light-emitting surface, by by light toward all angles expand It scatters, makes emergent light homogeneous soft, improve light source utilization rate, have brightness high, uniformity is good, at low cost, high performance-price ratio Advantage.

The scheme that the utility model solves above-mentioned technical problem is as follows：

The special light guide plate of TV liquid crystal modules of novel energy-conserving includes six layers altogether, successively from the exit direction that is incident on of light For：

First optical waveguide layer, material are optical grade GPPS plastics,

Second optical waveguide layer, material are nanoscale leaded light microballon,

First anti-yellowing change layer, material are ultra-violet absorber UV-327,

Second anti-yellowing change layer, material are light stabilizer 622LD,

The anti-yellowing change layer of third, material are light stabilizer 770,

4th anti-yellowing change layer, material are antioxidant 1010,

The light-emitting surface of first optical waveguide layer is provided with coarse lines, and the thickness of coarse lines is 0.15mm~0.5mm, slightly Rough lines be gradual change dot bulge, close prism pattern or spacing prism pattern,

The lines apex angle of the close prism pattern or spacing prism pattern is 45 °~75 °.

The thickness of the light guide plate is 2~6mm.

The utility model has the following advantages compared with the existing technology：

1, anti-yellowing change layer, extends service life.

2, nanoscale leaded light microballon, leaded light evenly, improve briliancy.

3, the light-emitting surface of optical waveguide layer is provided with coarse lines, and light is spread toward all angles and is projected, light-emitting uniformity is more It is good.

4, it is main material to use optical grade GPPS plastics, and former material is at low cost, the advantage of high performance-price ratio.

5, simple production process can arbitrarily be cut, easy to use, improve efficiency and yields.

6, generally, optical property is more excellent, can reduce light by when loss, improve the transmitance of light, carry The briliancy of high back lighting.

Description of the drawings

Fig. 1 is the structural schematic diagram of the special light guide plate of TV liquid crystal modules of the novel energy-conserving of embodiment 1.

Fig. 2 is the plan view of Fig. 1 light-emitting surfaces (gradual change dot bulge amplifies 50 times).

Fig. 3 is the longitudinal profile enlarged drawing (close prism pattern) of 2 light-emitting surface of embodiment.

Fig. 4 is the longitudinal profile enlarged drawing (spacing prism pattern) of 3 upper surface of embodiment.

Specific implementation mode

The utility model is described in further detail with reference to the accompanying drawings and examples.

Embodiment 1：

The special light guide plate of TV liquid crystal modules of novel energy-conserving as depicted in figs. 1 and 2, exit direction is incident on from light, Include altogether six layers, is followed successively by：

First optical waveguide layer 6, material are optical grade GPPS plastics,

Second optical waveguide layer 5, material are nanoscale leaded light microballon,

First anti-yellowing change layer 4, material are ultra-violet absorber UV-327,

Second anti-yellowing change layer 3, material are light stabilizer 622LD,

The anti-yellowing change layer 2 of third, material are light stabilizer 770,

4th anti-yellowing change layer 1, material are antioxidant 1010,

The light-emitting surface of first optical waveguide layer 6 is provided with coarse lines, and the thickness of coarse lines is 0.35mm, and coarse lines is gradually Become dot bulge,

The thickness of light guide plate is 4mm,

Maximum light away from：Unilateral 200cm,

Luminance uniformity：>85%,

Colour rendering is good, no distal end jaundice effect,

Thermal deformation resistant temperature：108 degrees Celsius.

Embodiment 2：

As shown in figure 3, as different from Example 1, the coarse lines of light-emitting surface is close prism pattern, close prism pattern Lines apex angle is 50 °.

Embodiment 3：

As shown in figure 4, as different from Example 1, the coarse lines of light-emitting surface is spacing prism pattern, spacing prism pattern Lines apex angle is 50 °.

Above-mentioned is the preferable embodiment of the utility model, but the embodiment of the utility model is not by the above Limitation, other any Spirit Essences without departing from the utility model under principle made by changes, modify, substitute, combine, simple Change, should be equivalent substitute mode, be included within the scope of protection of the utility model.

Claims (2)

1. the special light guide plate of TV liquid crystal modules of novel energy-conserving, it is characterised in that：Include six altogether from the exit direction that is incident on of light Layer, is followed successively by：

First optical waveguide layer, material are optical grade GPPS plastics,

Second optical waveguide layer, material are nanoscale leaded light microballon,

First anti-yellowing change layer, material are ultra-violet absorber UV-327,

Second anti-yellowing change layer, material are light stabilizer 622LD,

The anti-yellowing change layer of third, material are light stabilizer 770,

4th anti-yellowing change layer, material are antioxidant 1010,

The light-emitting surface of first optical waveguide layer is provided with coarse lines, and the thickness of coarse lines is 0.15mm~0.5mm, coarse line Road be gradual change dot bulge, close prism pattern or spacing prism pattern,

The lines apex angle of the close prism pattern or spacing prism pattern is 45 °~75 °.

2. the special light guide plate of TV liquid crystal modules of novel energy-conserving according to claim 1, it is characterised in that：The light guide plate Thickness be 2~6mm.