CN210864272U - Total reflection front light source and total reflection front light TFT display screen - Google Patents
Total reflection front light source and total reflection front light TFT display screen Download PDFInfo
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- CN210864272U CN210864272U CN201921873915.8U CN201921873915U CN210864272U CN 210864272 U CN210864272 U CN 210864272U CN 201921873915 U CN201921873915 U CN 201921873915U CN 210864272 U CN210864272 U CN 210864272U
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Abstract
The utility model relates to a total reflection front light and a total reflection front light TFT display screen, wherein the total reflection front light comprises a front light guiding system and a mirror reflection piece, and the front light guiding system is arranged close to the mirror reflection piece; the front light guiding system comprises an LED lamp and a light guide and density regulator, the LED lamp is arranged on the light inlet surface of the light guide and density regulator, and the light outlet surface of the light guide and density regulator and the reflection surface of the mirror reflection piece are oppositely arranged at a preset angle; the light density of the light emitted from the light-emitting surface of the light guide and density regulator is gradually arranged from the end close to the LED lamp to the end far away from the LED lamp. The utility model discloses utilize low-power consumption hi-lite LED lamp as the light source to jet out light to specular reflection spare through light guide and density adjustment ware on, wherein the light guide is effectively supplemented and is strengthened through the light that can make the directive keep away from the one end of LED lamp with the density adjustment ware, thereby realizes evenly throwing the front light.
Description
Technical Field
The utility model relates to a show the field, concretely relates to light TFT display screen before total reflection front light source and total reflection.
Background
Present current display light source is the backlight, and is showing visibly under realizing outdoor highlight, need use the high-power consumption light source, and reflection type display ware, usable outdoor sunshine reflect the back as the display light source, but can't realize showing visibly in cloudy day or evening, and the tradition leads the light source in the laminating entirely, causes the yield loss easily, and the cost increases, and the direct projection lamp can't realize light evenly distributed, causes to show unusually or influences the image visibility.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a light TFT display screen before total reflection front light and total reflection can realize that front side reflection light closely evenly shines on the display, prevents to cause because of local light sudden change inequality and shows the distortion, prevents the light line, prevents the demonstration problem such as abrupt dark space.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a total reflection front light source comprises a front light guide system and a mirror reflection piece, wherein the front light guide system is arranged close to the mirror reflection piece; the front light guiding system comprises an LED lamp and a light guide and density regulator, the LED lamp is arranged on a light inlet surface of the light guide and density regulator, and a light outlet surface of the light guide and density regulator and a reflecting surface of the specular reflection piece are oppositely arranged at a preset angle; the light density of the light emitted from the light-emitting surface of the light guide and density regulator is gradually arranged from the end close to the LED lamp to the end far away from the LED lamp.
The utility model has the advantages that: the utility model relates to a low-power consumption hi-lite LED lamp among total reflection front light source utilized preceding photosystem is as the light source to jet out light to specular reflection spare through light guide and density adjustment ware on, wherein light guide and density adjustment ware obtain effectively supplementing and reinforcing through the light that can make the directive keep away from the one end of LED lamp, thereby realize evenly throwing the front light, improve the display effect, prevent to cause the demonstration distortion because of local light sudden change inequality, prevent the light line, prevent the abrupt space scheduling display problem.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Further, one end of the specular reflection piece is close to one end, far away from the LED lamp, of the light guide and the density adjuster.
Further, the light guide and density regulator comprises a reflector, an optical density gradient screen plate, a diffuser, a second brightness enhancement film and a first brightness enhancement film which are sequentially stacked from bottom to top, wherein light guide points are arranged on the optical density gradient screen plate, the light guide points on the optical density gradient screen plate are arranged from one end to the other end in a gradually-sparse manner, and the LED lamp is attached to the light guide point dense end of the optical density gradient screen plate; the whole body formed by the reflector, the light density gradient screen plate, the diffuser, the second brightness enhancement sheet, the first brightness enhancement sheet and the LED lamp is covered in the reinforcing frame.
Further, the optical density gradient screen plate is made of a PC material, and the light guide points on the optical density gradient screen plate are manufactured by laser engraving, inverse trapezoid grid engraving and a UV screen printing method on the bottom surface of the PC material.
Based on the total reflection front light source of the above formula, the utility model also provides a total reflection front light TFT display screen.
A total reflection front light TFT display screen comprises a display and the total reflection front light source, wherein the display and the mirror reflection piece are distributed, and light reflected by the mirror reflection piece irradiates on the display.
The utility model relates to a low-power consumption hi-lite LED lamp in total reflection front light source utilized preceding photosystem is as the light source to jet out light to specular reflection spare through light guide and density adjustment ware on, back is thrown on the display, wherein light guide and density adjustment ware are through can making the light of the one end that the LED lamp was kept away from to the directive obtain effectively supplementing and reinforcing, thereby realize the even front light of throwing in, improve the display effect, prevent to arouse because of local light sudden change inequality and show the distortion, prevent the light line, prevent the demonstration problems such as abrupt space.
Drawings
Fig. 1 is a schematic structural view of a total reflection front light source of the present invention;
FIG. 2 is a schematic diagram of a light guide and density adjuster configuration;
FIG. 3 is a schematic plane structure diagram of an optical density gradient screen;
FIG. 4 is a schematic side sectional view of an optical density gradient screen;
fig. 5 is a schematic structural diagram of a total reflection front light TFT display screen of the present invention.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1, a total reflection front light source includes a front light guiding system and a specular reflection member, wherein the front light guiding system is disposed near the specular reflection member; the front light guiding system comprises an LED lamp and a light guide and density regulator, the LED lamp is arranged on a light inlet surface of the light guide and density regulator, and a light outlet surface of the light guide and density regulator and a reflecting surface of the specular reflection piece are oppositely arranged at a preset angle; the light density of the light emitted from the light-emitting surface of the light guide and density regulator is gradually arranged from the end close to the LED lamp to the end far away from the LED lamp. One end of the specular reflection piece is close to one end, far away from the LED lamp, of the light guide and the density adjuster.
The utility model relates to an among the total reflection front light source, be close to on the play plain noodles of light guide and density adjustment ware the one end of LED lamp is played to keeping away from one end of LED lamp ends, follows the light density of the light that light guide and density adjustment ware's play plain noodles jetted out is set up by the density gradually, can make the light of the one end that the LED lamp was kept away from to the directive obtain effectively supply and reinforcing to realize evenly throwing the front light.
In this embodiment, as shown in fig. 2, the light guide and density adjuster includes a light reflecting sheet, an optical density gradient screen plate, a diffusing sheet, a second brightness enhancement sheet and a first brightness enhancement sheet, which are sequentially stacked from bottom to top, wherein the optical density gradient screen plate is provided with light guide points, the light guide points on the optical density gradient screen plate are arranged from one end to the other end in a gradually decreasing and sparse manner, and the LED lamps are attached to the light guide point dense ends of the optical density gradient screen plate; the whole body formed by the reflector, the light density gradient screen plate, the diffuser, the second brightness enhancement sheet, the first brightness enhancement sheet and the LED lamp is covered in the reinforcing frame.
As shown in fig. 3, the optical density gradient screen is made of a PC material, and the light guide points on the optical density gradient screen are made by laser engraving, inverse trapezoid grid engraving and UV screen printing on the bottom surface of the PC material. The light emitted from the LED lamp is absorbed by the optical PC material and conducted on the surface of the optical PC material, and when the light irradiates each light guide point, the light guide line can be diffused at different angles under the action of the diffusion sheet (as shown in figure 4, the light mainly diffuses towards one end far away from the LED lamp, so that the light irradiating towards one end far away from the LED lamp can be effectively supplemented and enhanced, and the uniform projection of front light is realized); through various light guide points with different densities and sizes, the light guide lines can become controllable light density gradient plane light emission (non-plane uniformity) after passing through the light guide and the density regulator.
The utility model relates to a total reflection front light source utilizes preceding photosystem uses low-power consumption hi-lite LED as the light source to jet out light to specular reflection spare on through light guide and density adjustment ware. The light guide and the density regulator are designed through the mesh points (light guide points) of the light density gradient screen plate, so that light rays emitted to one end far away from the LED lamp after passing through the diffusion sheet are effectively supplemented and enhanced, uniform projection of front light is achieved, the display effect is improved, display distortion caused by uneven sudden change of local light rays is prevented, light stripes are prevented, and the problems of display such as a sudden dark area are prevented.
The utility model relates to a total reflection front light has realized that ordinary front light can't evenly throw the problem of light on reflective display screen (the fusion of display area light quantity), is the realization and provides indispensable reliable front light for reflective display screen evening or when indoor application.
Based on the total reflection front light source of the above formula, the utility model also provides a total reflection front light TFT display screen.
As shown in fig. 5, a total reflection front light TFT display screen includes a display and the total reflection front light source, the display and the specular reflection member are distributed, and light reflected by the specular reflection member is irradiated on the display.
The utility model discloses utilize preceding photosystem, use low-power consumption hi-lite LED as the light source to throw the back on the display on light jets out mirror surface reflection spare through light guide and density adjustment ware. The light guide and the density regulator are designed through the mesh points (light guide points) of the light density gradient screen plate, so that light rays emitted to one end far away from the LED lamp after passing through the diffusion sheet are effectively supplemented and enhanced, uniform projection of front light is achieved, the display effect is improved, display distortion caused by uneven sudden change of local light rays is prevented, light stripes are prevented, and the problems of display such as a sudden dark area are prevented.
The utility model relates to a light TFT display screen before total reflection can be used to design and make and produce and use at outdoor bus stop display screen, on the outdoor notice of highway bill-board, the cooperation government promotes, realizes low-power consumption green's outdoor demonstration.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (5)
1. A total reflection front light, characterized by: the front light guide system is arranged close to the specular reflection piece; the front light guiding system comprises an LED lamp and a light guide and density regulator, the LED lamp is arranged on a light inlet surface of the light guide and density regulator, and a light outlet surface of the light guide and density regulator and a reflecting surface of the specular reflection piece are oppositely arranged at a preset angle; the light density of the light emitted from the light-emitting surface of the light guide and density regulator is gradually arranged from the end close to the LED lamp to the end far away from the LED lamp.
2. A fully reflective front light according to claim 1, characterized in that: one end of the specular reflection piece is close to one end, far away from the LED lamp, of the light guide and the density adjuster.
3. A fully reflective front light according to claim 1 or 2, characterized in that: the light guide and density regulator comprises a reflector, an optical density gradient screen plate, a diffuser, a second brightness enhancement film and a first brightness enhancement film which are sequentially stacked from bottom to top, wherein a light guide point is arranged on the optical density gradient screen plate, the light guide point on the optical density gradient screen plate is arranged from one end to the other end in a dense and sparse mode, and the LED lamp is attached to the dense end of the light guide point of the optical density gradient screen plate; the whole body formed by the reflector, the light density gradient screen plate, the diffuser, the second brightness enhancement sheet, the first brightness enhancement sheet and the LED lamp is covered in the reinforcing frame.
4. A fully reflective front light according to claim 3, characterized in that: the light density gradient screen plate is made of a PC material, and light guide points on the light density gradient screen plate are manufactured by laser engraving, inverse trapezoid grid engraving and UV screen printing methods on the bottom surface of the PC material.
5. A total reflection front light TFT display screen is characterized in that: the total reflection front light source comprises a display and the total reflection front light source as claimed in any one of claims 1 to 4, wherein the display and the specular reflection member are distributed, and light reflected by the specular reflection member is irradiated on the display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921873915.8U CN210864272U (en) | 2019-11-01 | 2019-11-01 | Total reflection front light source and total reflection front light TFT display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921873915.8U CN210864272U (en) | 2019-11-01 | 2019-11-01 | Total reflection front light source and total reflection front light TFT display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210864272U true CN210864272U (en) | 2020-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921873915.8U Active CN210864272U (en) | 2019-11-01 | 2019-11-01 | Total reflection front light source and total reflection front light TFT display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210864272U (en) |
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2019
- 2019-11-01 CN CN201921873915.8U patent/CN210864272U/en active Active
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