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US 8,284,331 B2Granted
Dual-purpose projective display
AssigneeNone recorded
InventorShih-Chin Chien
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AssigneeNone recorded
InventorShih-Chin Chien
Estimating the term…
A projective display is signally connected with an electronic device capable of exporting an image, so as to allow a user to optionally view the image exported by the electronic device, wherein the projective display comprises: a transparent liquid crystal display assembly, which is signally connected with the electronic device; a light-emitting device, which emits a light to the liquid crystal display assembly; and a backlight module, which is aligned to a rear side of the liquid crystal display assembly for providing a surface light source to the liquid crystal display assembly so that the liquid crystal display assembly can function as an ordinary display, wherein, when the light-emitting device emits the light to the liquid crystal display assembly, and the backlight module is displaced from or not aligned to the rear side of the liquid crystal display assembly, the light emitted by the light-emitting device can pierce through the liquid crystal display assembly and make an image presented on the liquid crystal display assembly further magnified and projected onto a specific projection surface. Thereupon, the liquid crystal display assembly is endowed with a dual purpose.
A dual-purpose projective display, comprising:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
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About 3 years 1 month of term left · ends 19 Nov 2029 (estimated)
1. Technical Field
The present invention relates to projective displays and, more particularly, to a projective display implementing an operational principle where a conventional projector operates upon to project an image presented at a liquid crystal display to a projection surface.
2. Description of Related Art
The invention as well as a preferred mode of use, further objectives and advantages thereof, will best be understood by reference to the following detailed description of an illustrative embodiment when read in conjunction with the accompanying drawings, wherein:
FIG. 1 is a schematic drawing showing a conventional projector in use;
FIG. 2 is a perspective view showing the disclosed subject matter used as a display of a general laptop;
For purpose of illustration, some embodiments are provided in company with the drawings to explain the technical means and effects of the present invention.
It is to state firstly that an electronic device described in the present invention is a device that can present a signal or an image through a display, such as, but not limited to, a computer, a game player, an image player, etc. Similarly, a specific projection surface described in the present invention is not limited to a cloth projection screen, yet may be a general wall or a white board typically used in teaching. Preferably, the projection surface is white.
Please refer to FIGS. 2 through 5, wherein FIG. 2 is a perspective view showing the disclosed subject matter used as a display of a general laptop. FIG. 3 is a lateral view made according to FIG. 2. FIG. 4 is a perspective view showing the disclosed subject matter used as a projector. FIG. 5 is a lateral view made according to FIG. 4.