CN2742467Y - Electronic display screen - Google Patents
Electronic display screen Download PDFInfo
- Publication number
- CN2742467Y CN2742467Y CN 200420063688 CN200420063688U CN2742467Y CN 2742467 Y CN2742467 Y CN 2742467Y CN 200420063688 CN200420063688 CN 200420063688 CN 200420063688 U CN200420063688 U CN 200420063688U CN 2742467 Y CN2742467 Y CN 2742467Y
- Authority
- CN
- China
- Prior art keywords
- light source
- display screen
- circuit board
- housing
- utility
- 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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Abstract
The utility model is an electronic display screen, comprising a light source, a circuit board, a casing, bowl shape beam reflectors, a display screen, etc. The light source is fixed on the circuit board, the utility model is characterized in that the display screen takes the structure combined by a Fresnel lens and a columnar lens, and the columnar lens is connectedly fixed on the Fresnel lens. The bowl shape beam reflectors are connected on the casing and arranged tightly, the casing is buckled on the circuit board, and the light source is provided at the center of each bowl shape beam reflector. The display screen is fixed on the upper end of the casing, one side of the Fresnel lens is near the casing, and the center of the Fresnel lens light axis is deviated from the light axis of the light source downward. The utility model increases the brightness of the display screen and the utility model can absorb or scatter the light which comes from outer side. Thereby, the contrast ratio of the display screen is increased, the picture is clearer, the color is brighter, and the ocular angle is broader.
Description
Technical field: the utility model belongs to a kind of electronic display.
Background technology: existing electronic display is to be made of light source, baffle plate, circuit board, screen, housing etc.Its pixel pipe centre distance is big, cause its image to be prone to black splotch, and the baffle plate on its light source reflects the sunshine of incident, reduced the contrast of image, have the shortcomings that the angle of divergence is little, projector distance short, light intensity is lost in a large number, thereby cause its brightness low, contrast is low, image blurring, visual angle is narrow.
Summary of the invention: the purpose of this utility model provides a kind of brightness and contrast that improves display screen, increases its angle of divergence, a kind of electronic display of clear image.Technical solutions of the utility model are: the utility model comprises light source, circuit board, housing, bowl-shape reverberator, screen, light source is fixed on the circuit board, be characterized in that screen adopts Fresnel Lenses and lens pillar structure combining, lens pillar be fastened on Fresnel Lenses above, bowl-shape reverberator is connected on the housing, and closely arrange, housing be buckled in circuit board above, every group of light source all lays respectively at the center of each bowl-shape reverberator, screen is fixed on the upper end of housing, and Fresnel Lenses simultaneously gets close to housing, and the Fresnel Lenses optical axis center departs under the optical axis direction of light source.The utility model has removed traditional baffle plate, adopts the structure of bowl-shape reverberator that illuminating source is surrounded, and closely arranges, increase the brightness of screen, and the light that comes from the outside has been absorbed or scattering, thereby increased the contrast of display screen, make image more clear, color is brighter; Display screen adopts Fresnel Lenses and lens pillar structure combining, the optical axis center of Fresnel Lenses departs from the light that makes outgoing under the optical axis direction of light source refraction to be taken place and has directivity, thereby reduced the loss of top light intensity in the horizontal direction in a large number, increased brightness; And the effect of lens pillar is with the angle of divergence expansion of horizontal direction, and maximum can reach 180 visual angles.
Description of drawings: Fig. 1 is that the utility model removes structural representation behind the screen
Fig. 2 is the horizontal cross-sectional schematic of the utility model one-piece construction
Embodiment 1:
The utility model comprises light source 1, circuit board 2, housing 3, bowl-shape reverberator 4, screen, light source 1 can adopt LED, on light source 1 circuit board 2, screen adopts Fresnel Lenses 5 and lens pillar 6 structure combining, lens pillar 5 is that one is connected with Fresnel Lenses 6, the housing that has compact arranged bowl-shape reverberator 43 of single injection-molded is buckled on the circuit board 2, make four to be that one group LED is corresponding with each bowl-shape reverberator 4, each group light source 1 all is positioned at the center of each bowl-shape reverberator 4, screen is fixed on the upper end of housing 3, and Fresnel Lenses 5 one sides are got close to housing 3, and the optical axis center of Fresnel Lenses 5 departs under the optical axis direction of light source 1.
Claims (1)
1, a kind of electronic display, comprise light source, circuit board, housing, bowl-shape reverberator, screen, light source is fixed on the circuit board, it is characterized in that: screen adopts Fresnel Lenses and lens pillar structure combining, lens pillar be fastened on Fresnel Lenses above, bowl-shape reverberator is connected on the housing, and closely arrange, housing be buckled in circuit board above, every group of light source all lays respectively at the center of each bowl-shape reverberator, screen is fixed on the upper end of housing, and Fresnel Lenses simultaneously gets close to housing, and the Fresnel Lenses optical axis center departs under the optical axis direction of light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420063688 CN2742467Y (en) | 2004-11-02 | 2004-11-02 | Electronic display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420063688 CN2742467Y (en) | 2004-11-02 | 2004-11-02 | Electronic display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2742467Y true CN2742467Y (en) | 2005-11-23 |
Family
ID=35477935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420063688 Expired - Lifetime CN2742467Y (en) | 2004-11-02 | 2004-11-02 | Electronic display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2742467Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101533850B (en) * | 2008-03-13 | 2012-07-04 | 奇美电子股份有限公司 | Organic light emitting diode display device and display system thereof |
| CN107993588A (en) * | 2017-12-29 | 2018-05-04 | 广州天眼电子产品有限公司 | A kind of LED display to radiate before screen |
-
2004
- 2004-11-02 CN CN 200420063688 patent/CN2742467Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101533850B (en) * | 2008-03-13 | 2012-07-04 | 奇美电子股份有限公司 | Organic light emitting diode display device and display system thereof |
| CN107993588A (en) * | 2017-12-29 | 2018-05-04 | 广州天眼电子产品有限公司 | A kind of LED display to radiate before screen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20141102 Granted publication date: 20051123 |