CN211827944U - LED display screen capable of changing background color - Google Patents
LED display screen capable of changing background color Download PDFInfo
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- CN211827944U CN211827944U CN202020274933.0U CN202020274933U CN211827944U CN 211827944 U CN211827944 U CN 211827944U CN 202020274933 U CN202020274933 U CN 202020274933U CN 211827944 U CN211827944 U CN 211827944U
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Abstract
The utility model relates to a LED display screen of convertible background color, including first luminescent plate, photomask, second luminescent plate, light guide plate and printing opacity membrane, the photomask sets up on first luminescent plate surface, is provided with the pattern on the photomask, the second luminescent plate sets up in the photomask top, and the position that the second luminescent plate corresponds the pattern is opened there is the notch, and the light source setting of second luminescent plate is on the both sides inner wall that the notch is relative, the light guide plate is installed in the notch, the printing opacity membrane sets up on the second luminescent plate and is located the light guide plate top. When the touched or selected pattern is displayed in the highlight background, the user can observe the pattern conveniently, the defect that the local content is highlighted when the traditional nixie tube and the single-color liquid crystal are difficult to display in a large range in the prior art is overcome, and meanwhile, the TFT display is replaced, so that the cost is reduced, and the requirement is met.
Description
Technical Field
The utility model relates to a display screen, in particular to LED display screen of convertible background color.
Background
Present human-computer interaction's display mode is mostly the charactron, monochromatic liquid crystal or TFT display screen, human-computer interaction's display function, traditional charactron and monochromatic liquid crystal, mostly be through the bright/go out of lamp, the colour of pen section is alternative, and TFT passes through the switching of pattern and colour, though traditional charactron and LCD display, the cost is low relatively, but be difficult to highlight local content when showing on a large scale, this not enough can be solved in current TFT display, and the scheme is high-end fashion more, but the cost is high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a LED display screen of convertible background color.
The purpose of the utility model is realized like this:
the utility model provides a LED display screen of convertible background color, includes first luminescent plate, photomask, second luminescent plate, light guide plate and printing opacity membrane, the photomask sets up on first luminescent plate surface, is provided with the pattern on the photomask, the second luminescent plate sets up in the photomask top, and the position that the second luminescent plate corresponds the pattern is opened there is the notch, and the light source setting of second luminescent plate is on the relative both sides inner wall of notch, the light guide plate is installed in the notch, the printing opacity membrane sets up on the second luminescent plate and is located the light guide plate top.
When the light source of first luminescent plate is lighted, light passes through the pattern of photomask and jets out to the light guide plate top by the light guide plate bottom, make the pattern of photomask show on the light transmission membrane, when user's touching or selection pattern, the light source that the second luminescent plate corresponds the pattern position lights, light is jetted into inside the light guide plate and produce the reflection effect in the light guide plate by the lateral wall of light guide plate, thereby demonstrate high bright background, make the pattern of touching or selecting show in high bright background, be convenient for the user to observe, and solve the shortcoming that traditional charactron of prior art and monochromatic liquid crystal are difficult to highlight local content when showing on a large scale, replace TFT display simultaneously, thereby reduce cost, satisfy the demand.
The purpose of the utility model can also adopt the following technical measures to solve:
more specifically, the light guide plate is a transparent light guide plate with uniform and bright light transmission by optical processing, or a PMMA light guide plate or a glass light guide plate. The light guide plate is subjected to special optical treatment (such as dotting), so that the layer of light-emitting equipment can be more uniform and bright when emitting light, a high-brightness background effect is realized, and a transparent effect is presented when the light-emitting equipment is not bright, so that the display screen is more attractive, and the user requirements are met.
More specifically, the light guide plate is a light guide plate with screen dots, and the diameter range of the screen dots is between 0.005 mm and 0.15 mm. The mesh point diameter is in 0.005~0.15mm within range, therefore the naked eye is difficult to observe slight mesh point, and when light emitting equipment was not bright, what the light guide plate presented was transparent effect, and light emitting equipment can be more evenly bright when luminous, realizes high bright background effect, makes the display screen more pleasing to the eye, satisfies user's demand.
More specifically, the dot density is 10 to 20 dots/mm along the length direction2To 20 to 40dots/mm2And (5) transition gradual change. When the light rays are emitted into the mesh points with different densities, the light ray gradual change effect is generated.
As a more specific scheme, the first light-emitting board includes a first circuit board and a first light source, the first light source is an LED lamp bead with a single color or multiple light-emitting colors, and the first light source is disposed on the surface of the first circuit board. The first light source can emit light rays with different colors, so that different color requirements are met, and the application range of the display screen is widened.
As a more specific scheme, the second light-emitting board comprises a second circuit board and a second light source, the second circuit board is a side-in type light source circuit board, the second light source is an LED lamp bead with a single color or multiple light-emitting colors, and the second light source is arranged in a light-entering area of the side-in type light source circuit board. The second light source can emit light rays with different colors, so that different color requirements are met, and the application range of the display screen is widened.
As a more specific scheme, the light guide module further comprises a support, wherein the support is clamped on the first circuit board, light guide holes are formed in the support at intervals, the first light source on the surface of the first circuit board corresponds to the light guide holes, the shading film is arranged on the surface of the support, and the pattern of the shading film corresponds to the light guide holes. The shading film is convenient to fix by additionally arranging the support, so that the practicability is high.
More specifically, the light-shielding film is a selective light-shielding film material for displaying different pattern contents. By adopting the selective shading film material, the shading film can display different patterns, so that the display screen is suitable for more fields.
More specifically, the light-transmitting film is a dark-colored light-transmitting film. The dark color light-transmitting film shields parts of the display screen, so that the display screen is more attractive.
More specifically, the display device further comprises a light-blocking plate, and the light-blocking plate is provided with a display light-blocking area corresponding to the pattern position.
The utility model has the advantages as follows:
the utility model discloses, when the light source of first luminescent plate is bright, light jets out through the pattern of photomask and by the light guide plate bottom toward the light guide plate top, make the pattern of photomask show on the printing opacity membrane, when user's touching or selection pattern, the light source that the second luminescent plate corresponds the pattern position lights, light jets into the light guide plate inside and produces the reflection effect in the light guide plate by the lateral wall of light guide plate, thereby demonstrate high bright background, make the pattern of touching or selecting show in high bright background, be convenient for the user to observe, and solve the shortcoming that prior art traditional charactron and monochromatic liquid crystal are difficult to highlight local content when showing on a large scale, replace TFT simultaneously and show, thereby reduce cost, satisfy the demand.
The utility model discloses, the site diameter is at 0.005~0.15mm within range, therefore slight site is difficult to observe to the naked eye, and when light emitting equipment was not bright, what the light guide plate presented was transparent effect, and light emitting equipment can be more evenly bright when luminous, realizes high bright background effect, makes the display screen more pleasing to the eye, satisfies user's demand.
The utility model discloses, dot density is by 10~20 dots/mm along its length direction2To 20 to 40dots/mm2Transition gradual change, when the light rays are injected into the mesh points with different densities, the product is producedAnd the light ray gradual change effect is generated.
Drawings
Fig. 1 is a schematic diagram of the display effect of embodiment 1 (a display screen with multiple pattern selections).
Fig. 2 is a schematic diagram of another display effect of embodiment 1 (a display screen with multiple pattern selections).
FIG. 3 is an exploded view of example 1.
Fig. 4 is a schematic view of the light guide plate of the present invention.
Fig. 5 is an ies curve diagram of the light guide plate of the present invention.
Fig. 6 is a display effect diagram (display screen with only one pattern selection) of example 2.
Fig. 7 is another display effect diagram of embodiment 2 (display screen with only one pattern selection).
Detailed Description
The invention will be further described with reference to the following drawings and examples:
embodiment 1, with reference to fig. 1 to 5, an LED display panel capable of changing a background color is a display panel with a plurality of pattern selections, and the display panel includes a first light emitting plate 1, a light shielding film 2, a bracket 3, a second light emitting plate 4, a light guide plate 5, a light blocking plate 6, and a light transmissive film 7.
The first light-emitting board 1 comprises a first circuit board 11 and a first light source 12, the first light source 12 is an LED lamp bead with multiple light-emitting colors, and the first light source 12 is arranged on the surface of the first circuit board 11.
The light shielding film 2 is a selective light shielding film material for displaying different patterns 21, and a plurality of patterns 21 are arranged on the light shielding film 2.
The second light-emitting board 4 includes a second circuit board 41 and a second light source 42, the second circuit board 41 is a side-in type light source circuit board, the second light source 42 is an LED lamp bead with multiple light-emitting colors, and the second light source 42 is arranged on the inner wall of a light-entering area 44 of the side-in type light source circuit board.
The light guide plate 5 is optically processed (e.g., dotted) to have uniform and bright light transmissionThe light guide plate 5 (transparent glass or acrylic plate) is made of transparent materials and provided with the mesh points 7, the diameter of the mesh points 7 is 0.02mm, and the density of the mesh points 7 is 10-20 dots/mm along the length direction of the mesh points 72To 20 to 40dots/mm2And (5) transition gradual change.
The light transmission film 7 is a tawny light transmission film 7, the light guide holes 31 are formed in the support 3 at intervals, and the light isolation plate 6 is provided with a plurality of display light isolation areas 61 corresponding to the patterns 21.
The support 3 is clamped on the first circuit board 11, the first light source 12 on the surface of the first circuit board 11 corresponds to the light guide hole 31, the shading film 2 is arranged on the surface of the support 3, and the pattern 21 of the shading film 2 corresponds to the light guide hole 31.
The second circuit board 41 is disposed on the light shielding film 2, a notch 43 is formed in a position of the second circuit board 41 corresponding to the pattern 21, the light shielding plate 6 is disposed on the second circuit board 41, the display light shielding regions 61, the notches 43 and the pattern 21 of the light shielding plate 6 are in one-to-one correspondence, the second light sources 42 are located on inner walls of two opposite sides of the notches 43, and the light guide plate 5 is mounted in the notches 43 corresponding to the display light shielding regions 61.
The working principle is as follows:
the first light source 12 is turned on, and light generated by the first light source 12 is emitted to the light transmissive film 7 along the pattern 21 of the light shielding film 2, the bottom of the light guide plate 5, and the top of the light guide plate 5, so that the pattern 21 of the light shielding film 2 is displayed on the light transmissive film 7 (for example, the pattern 21 is white).
When a user touches or selects the pattern 21 corresponding to the light shielding film 2, the corresponding second light source 42 is started, light generated by the second light source 42 is emitted into the light guide plate 5 along the side wall of the light guide plate 5, the light continuously forms a reflection effect under the action of the mesh points 7 in the light guide plate 5 to present a highlight background, and at the moment, the pattern of the light shielding film 2 can be presented under the highlight background, so that the user can conveniently observe the pattern.
For example: when the equipment is started and does not enter a working state, the pattern 21 of the display screen is white, the corresponding second light source 42 is closed, the background color corresponding to the pattern 21 is black (namely, white characters with black background), when the equipment finishes working, the corresponding second light source 42 is started, the background color is changed into another color (namely, white characters with red background), at the moment, the pattern 21 is changed into the change of the white characters with red background from the white characters with black background, the change of the color of the pattern 21 is visually and intuitively presented to a user, the working process is represented to be finished, and the user can more intuitively perceive the change of the equipment working.
For example: when a user touches or selects the corresponding pattern 21, the second light source 42 at the position corresponding to the pattern 21 is activated, so as to generate a background color (e.g. yellow), at this time, the pattern 21 is presented under the background color (e.g. yellow), the pattern 21 of the display screen is white, the background color corresponding to the pattern 21 is yellow (i.e. white with yellow background), the user is intuitively felt that the function corresponding to the pattern 21 is in an activated state, the function is convenient for the user to observe, and the manufacturer can change the background color (e.g. yellow to green) by changing the color of the second light source 42, so as to meet different display requirements.
Moreover, because the diameter of the mesh point 7 is within the range of 0.02-0.08 mm, the fine mesh point 7 is not easy to observe by naked eyes, when the light-emitting device is not bright, the light guide plate 5 has a transparent effect, and the light-emitting device can be more uniform and bright when emitting light, so that the high-brightness background effect is realized, the display screen is more attractive, and the user requirements are met.
Furthermore, the density of the dots 7 is from 10 to 20 dots/mm along the length direction2To 20 to 40dots/mm2Transition gradual change, when the light shines into the site 7 of different density, can produce the gradual change effect of light, satisfy the display demand that does not use.
Claims (10)
1. The utility model provides a LED display screen of convertible background color which characterized in that: including first luminescent plate, photomask, second luminescent plate, light guide plate and printing opacity membrane, the photomask sets up on first luminescent plate surface, is provided with the pattern on the photomask, the second luminescent plate sets up in the photomask top, and the position that the second luminescent plate corresponds the pattern is opened there is the notch, and the light source setting of second luminescent plate is on the both sides inner wall that the notch is relative, the light guide plate is installed in the notch, the printing opacity membrane sets up on the second luminescent plate and is located the light guide plate top.
2. A background color changeable LED display screen as defined in claim 1, wherein: the light guide plate is a transparent material light guide plate or PMMA light guide plate or glass light guide plate which has even and bright light transmission through optical treatment.
3. A convertible background color LED display screen according to claim 1 or 2, wherein: the light guide plate is provided with screen dots, and the diameter range of the screen dots is 0.005-0.15 mm.
4. A background color changeable LED display screen according to claim 3, wherein: the density of the mesh points on the light guide plate is 10-20 dots/mm along the length direction2To 20 to 40dots/mm2And (5) transition gradual change.
5. A background color changeable LED display screen as defined in claim 1, wherein: the first light-emitting board comprises a first circuit board and a first light source, the first light source is an LED lamp bead with a single color or multiple light-emitting colors, and the first light source is arranged on the surface of the first circuit board.
6. A background color changeable LED display screen as defined in claim 1, wherein: the second luminescent plate comprises a second circuit board and a second light source, the second circuit board is a side-in type light source circuit board, the second light source is a single color or multiple light-emitting color LED lamp beads, and the second light source is arranged in a light-entering area of the side-in type light source circuit board.
7. An LED display screen with changeable background color according to claim 5, wherein: the light shielding film is arranged on the surface of the support, and patterns of the light shielding film correspond to the light guide holes.
8. A background color changeable LED display screen as defined in claim 1, wherein: the shading film is a selective shading film material used for displaying different pattern contents.
9. A background color changeable LED display screen as defined in claim 1, wherein: the light-transmitting film is a dark light-transmitting film.
10. A background color changeable LED display screen as defined in claim 1, wherein: the display device further comprises a light-isolating plate, and a display light-isolating area is arranged at the position, corresponding to the pattern, of the light-isolating plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020274933.0U CN211827944U (en) | 2020-03-07 | 2020-03-07 | LED display screen capable of changing background color |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020274933.0U CN211827944U (en) | 2020-03-07 | 2020-03-07 | LED display screen capable of changing background color |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211827944U true CN211827944U (en) | 2020-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020274933.0U Active CN211827944U (en) | 2020-03-07 | 2020-03-07 | LED display screen capable of changing background color |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211827944U (en) |
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2020
- 2020-03-07 CN CN202020274933.0U patent/CN211827944U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: LED display screen with variable background color Effective date of registration: 20230529 Granted publication date: 20201030 Pledgee: Guangdong Nanhai Rural Commercial Bank branch branch of Limited by Share Ltd. Pledgor: FOSHAN SHUNDE HENGWEI ELECTRONIC TECHNOLOGY Co.,Ltd. Registration number: Y2023980042093 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |