CN2563676Y - LED display - Google Patents
LED display Download PDFInfo
- Publication number
- CN2563676Y CN2563676Y CN 02272892 CN02272892U CN2563676Y CN 2563676 Y CN2563676 Y CN 2563676Y CN 02272892 CN02272892 CN 02272892 CN 02272892 U CN02272892 U CN 02272892U CN 2563676 Y CN2563676 Y CN 2563676Y
- Authority
- CN
- China
- Prior art keywords
- layout
- led
- scattering film
- circuit board
- light guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
- G09F9/3023—Segmented electronic displays
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
Disclosed is an LED display which comprises a reflective cavity, a scattering film and a circuit board, a light guide window is arranged on the reflective cavity, the light guide window is covered with a scattering film, preset patterns are disposed on the scattering film, the layout of the light guide window corresponds to the layout of the scattering film, and the circuit board is sealed in the reflective cavity. The utility model is characterized in that a chip LED is welded on the circuit board, and the layout of the chip LED corresponds to the layout of the light guide window. The utility model replaces the LED die by the chip LED for facilitating the screening of the chip LED, so the made LED display has good luminescence consistency, and the light transmittance is excellent due to the avoidance of the epoxy resin filling and sealing in the reflective cavity and the scattering agent adding, in addition, the LED display has high rate of finished products because the chip LED with bad luminescence performance can be changed or repaired.
Description
Technical field
The utility model relates to the display as light source with LED, especially for the light-emitting diode display that shows predetermined pattern.
Background technology
People's normal light-emitting diode display (as the LED nixie display) that uses on products such as various instruments, instrument, household electrical appliance shows certain static or dynamic predetermined pattern (" pattern " described in the utility model comprises figure and literal).This light-emitting diode display mainly includes reflection cavity, scattering film and circuit board, on reflection cavity, be provided with the leaded light window, on the leaded light window, be coated with scattering film, scattering film is provided with predetermined pattern, the layout of leaded light window is corresponding with the pattern layout of scattering film, circuit board is encapsulated in the reflection cavity, and Direct Bonding the LED tube core thereon, and the layout of tube core is corresponding with the layout of reflection cavity.Because LED tube core Direct Bonding is on circuit board, therefore also must be in reflection cavity encapsulated epoxy resin, there is following shortcoming in existing this light-emitting diode display: 1. owing to be difficult in advance the LED tube core be selected, therefore be subjected to the influence of tube core parameter, the luminous consistance of display is poor, more be difficult to guarantee the consistance of photoelectric parameter in the batch process, many more these shortcomings of used tube core are obvious more; 2. can't bad LED be reprocessed behind the encapsulated epoxy resin, yield rate is low; 3.LED the scattering angle of tube core is less, must add scattering diluent in epoxy resin, therefore produces very big light absorption, the light transmission of display is poor; 4. the complex process of encapsulated epoxy resin in reflection cavity.
Summary of the invention
The purpose of this utility model provides a kind of luminous high conformity, light transmission is good, yield rate is high light-emitting diode display.
The utility model is achieved in that light-emitting diode display comprises reflection cavity, scattering film and circuit board, on reflection cavity, be provided with the leaded light window, be coated with scattering film on the leaded light window, scattering film is provided with predetermined pattern, and the layout of leaded light window is corresponding with the pattern layout of scattering film.Circuit board is encapsulated in the reflection cavity, is welded with sheet-shaped LED on it, and the layout of sheet-shaped LED is corresponding with the layout of leaded light window.The utility model has replaced the LED tube core with sheet-shaped LED, therefore can screen sheet-shaped LED easily, make the luminous high conformity of the light-emitting diode display of making, and owing to need not encapsulated epoxy resin and interpolation scattering diluent in reflection cavity, therefore light transmission is good, in addition, owing to can change or reprocess luminous bad sheet-shaped LED, so the yield rate height of light-emitting diode display.
The utility model has the advantages that luminous high conformity, light transmission is good, yield rate is high.Since abandoned the operation of encapsulated epoxy resin in reflection cavity, therefore simple for assembly process, and utilized the big advantage of sheet-shaped LED scattering angle, improved the scattering angle of display.
Description of drawings
Fig. 1 is the orthographic projection view of the utility model embodiment;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the three-dimensional explosive view of Fig. 1;
Fig. 4 is the A-A cutaway view Amplified image of Fig. 1.
Embodiment
Referring to Fig. 1 to Fig. 4, light-emitting diode display comprises reflection cavity 1, scattering film 2 and circuit board 3.Be provided with leaded light window 4 on reflection cavity 1, all leaded light windows all are scattered film 2 and cover.Scattering film 2 is provided with predetermined pattern.The concrete quantity and the position of leaded light window 4 are set according to the pattern on the scattering film 2, make that the layout of leaded light window 4 is corresponding with the pattern layout of scattering film 2.Be packaged with circuit board 3 in the reflection cavity 1, be welded with sheet-shaped LED 5 on the circuit board 3, the concrete quantity of sheet-shaped LED 5 and position are set according to the quantity and the position of leaded light window 4, make the layout of sheet-shaped LED 5 corresponding with the layout of leaded light window 4.Also be welded with pin 6 on the circuit board 3.During use, the driving circuit of light-emitting diode display is connected to pin 6, LED5 is luminous by driving circuit control chip, and the light that sheet-shaped LED 5 sends is gone out through the drafting department potential scattering of leaded light window 4 and scattering film 2, makes light-emitting diode display demonstrate predetermined pattern thus.
Circuit board of the present utility model can adopt pcb board, and can adopt the SMT technology that sheet-shaped LED is welded on the pcb board.
As preferred forms, should make circuit board 3 be close to the bottom of leaded light window 4 as shown in Figure 2, sheet-shaped LED 5 is closed in the leaded light window 4, and the light that can avoid the sheet-shaped LED of diverse location to send like this interacts, thereby improves the display effect of light-emitting diode display.
Claims (2)
1. light-emitting diode display, comprise reflection cavity, scattering film and circuit board, on reflection cavity, be provided with the leaded light window, on the leaded light window, be coated with scattering film, scattering film is provided with predetermined pattern, and the layout of leaded light window is corresponding with the pattern layout of scattering film, is packaged with circuit board in the reflection cavity, it is characterized in that: be welded with sheet-shaped LED on the circuit board, the layout of sheet-shaped LED is corresponding with the layout of leaded light window.
2. light-emitting diode display as claimed in claim 1 is characterized in that: circuit board is close to the bottom of leaded light window, and sheet-shaped LED is closed in the leaded light window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02272892 CN2563676Y (en) | 2002-08-28 | 2002-08-28 | LED display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02272892 CN2563676Y (en) | 2002-08-28 | 2002-08-28 | LED display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2563676Y true CN2563676Y (en) | 2003-07-30 |
Family
ID=33737499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02272892 Expired - Lifetime CN2563676Y (en) | 2002-08-28 | 2002-08-28 | LED display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2563676Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100401344C (en) * | 2004-12-02 | 2008-07-09 | 冠德光电科技股份有限公司 | Luminous fabric device |
| CN100401345C (en) * | 2004-12-02 | 2008-07-09 | 冠德光电科技股份有限公司 | Luminous fabric device |
| CN109863434A (en) * | 2016-10-20 | 2019-06-07 | 3M创新有限公司 | The device covered up for optical window |
| US11996503B2 (en) | 2021-09-30 | 2024-05-28 | Au Optronics Corporation | Display device |
-
2002
- 2002-08-28 CN CN 02272892 patent/CN2563676Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100401344C (en) * | 2004-12-02 | 2008-07-09 | 冠德光电科技股份有限公司 | Luminous fabric device |
| CN100401345C (en) * | 2004-12-02 | 2008-07-09 | 冠德光电科技股份有限公司 | Luminous fabric device |
| CN109863434A (en) * | 2016-10-20 | 2019-06-07 | 3M创新有限公司 | The device covered up for optical window |
| CN109863434B (en) * | 2016-10-20 | 2022-04-26 | 3M创新有限公司 | Device for optical window masking |
| US11525949B2 (en) | 2016-10-20 | 2022-12-13 | 3M Innovative Properties Company | Device optical window camouflage |
| US11996503B2 (en) | 2021-09-30 | 2024-05-28 | Au Optronics Corporation | Display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: FUSHAN CITY GUOXING PHOTOELECTRIC CO., LTD. Free format text: FORMER NAME OR ADDRESS: FOSHAN CITY PHOTOELECTRIC EQUIPMENT CO. |
|
| CP03 | Change of name, title or address |
Address after: 528000, No. 18, Huabao South Road, Chancheng District, Guangdong, Foshan Patentee after: Foshan Guoxing Photoelectric Co., Ltd. Address before: 528000 No. 24 Fenjiang North Road, Foshan, Guangdong Patentee before: Foshan City Photoelectric Equipment Co. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120828 Granted publication date: 20030730 |