TWM568377U - Projection-type display device - Google Patents

Abstract

A projection type display device includes a projection host and a projection screen, and the projection screen is detachably fixed to a top surface of the projection host by a fixing structure. The projection host has a first space inside to accommodate the projection unit, and a top space of the projection host is recessed to accommodate the mirror. The image light generated by the projection unit is projected to the mirror through the through hole connecting the first space and the second space, and the mirror reflects the image light to the projection screen to form an image on the projection screen. The projection screen does not require a complicated driving circuit, and can be made of a material that is not easily damaged by plastic or paper, and does not need to be protected by an outer casing, so that the projection display device is relatively light and thin. The projection screen is detachably separated from the projection host, so that the projection display device can be conveniently used, stored or moved.

Description

Projection display device

The present invention relates to a display device, and more particularly to a projection display device.

Existing display devices, such as televisions, computer screens, etc., typically use liquid crystal display panels to display images. The liquid crystal display panel requires complicated driving circuits, such as setting a row driver and a column driver at the edge of the panel, and setting a timing controller on the back of the panel to control the row driver and the column driver. In addition, the liquid crystal display panel is also fragile and easily broken, so it is required The outer cover covers the panel and the drive circuit to make the body relatively thick.

In view of this, the present invention proposes a projection type display device which is relatively light and thin.

A projection display device according to an embodiment of the present invention includes a projection host and a projection screen, and the projection screen is detachably fixed to the top surface of the projection host by a fixing structure. The projection host has a first space to accommodate the projection unit, a top space of the projection host is recessed to receive the mirror, and the projection host is further provided with a through hole to communicate the first space and the second space. The image light generated by the projection unit is projected through the through hole to the mirror, and the mirror reflects the image light to the projection screen to form an image on the projection screen.

According to another embodiment of the present disclosure, a projection display device includes a projection host and a projection screen, and the projection screen is detachably fixed to a top surface of the projection host by a fixing structure. The projection host has a first space to accommodate the projection unit, and a second space is recessed on the top surface of the projection host. The projection host is further provided with a through hole to communicate the first space and the second space. The image light generated by the projection unit is projected through the through hole and the second space to the projection screen to form an image on the projection screen.

In an embodiment of the present creation, the projection screen is a flat screen or a curved screen.

In an embodiment of the present creation, the projection screen is a light-transmissive screen or a reflective screen.

In an embodiment of the present invention, the projection screen is made of plastic or paper.

In an embodiment of the present creation, the size of the projection screen is 20 to 60 inches.

In an embodiment of the present invention, the projection unit uses a light-emitting diode (LED) light source or a laser light source.

In an embodiment of the present invention, the mirror is a plane mirror or a curved mirror.

In an embodiment of the present invention, the fixing structure includes a U-shaped bracket and two jacks formed on a top surface of the projection host. The U-shaped bracket includes two plungers and a connecting rod, one ends of the two plungers are respectively connected to the two ends of the connecting rod, and the connecting rod is provided with a groove. One side of the projection screen is detachably fixed to the groove, and the two plungers are detachably fixed to the two jacks on the projection host.

In an embodiment of the present invention, a third space is recessed in a bottom surface of the projection host to accommodate the U-shaped bracket.

In an embodiment of the present invention, the fixing structure includes two L-shaped brackets and two jacks formed on the top surface of the projection host. Each L-shaped bracket includes a plunger and a connecting rod, one end of the rod is connected to one end of the connecting rod, and the connecting rod is provided with a groove. One side of the projection screen is detachably fixed to the two grooves on the two L-shaped brackets, and the two plungers of the two L-shaped brackets are detachably fixed to the two jacks on the projection host.

In an embodiment of the present invention, the third surface of the projection host is recessed to accommodate two L-shaped brackets.

In an embodiment of the present invention, the fixed structure includes a card extending from a side of the projection screen and a receptacle formed on a top surface of the projection host. The projection screen is detachably fixed to the jack on the projection unit through the card.

In an embodiment of the present creation, the projection display device is a television or a computer monitor.

In summary, the projection display device proposed by the present invention adopts a projection screen, and the projection screen does not need a complicated driving circuit, and can be made of a material that is not easily damaged by plastic or paper, and does not need an outer casing to protect, so that The projection display device is relatively light and thin. In addition, the projection screen is detachably separated from the projection host, so that the projection display device can be conveniently used, stored or moved.

The detailed features and advantages of the present invention are described in detail below in the embodiments, which are sufficient to enable anyone skilled in the art to understand the technical content of the present invention and to implement it, and to disclose the contents, patent claims, and drawings according to the present specification. Anyone skilled in the art can easily understand the purpose and advantages associated with this creation.

In order to clearly illustrate the features of the present invention, the components in the drawings are merely schematic and not drawn to the physical shape and scale, and some of the conventional components are omitted, such as omitting the power or status indicator, buttons or knobs, Various types of socket connectors, vents or sound holes, and so on. In addition, in the different embodiments, the same or similar symbols represent the same or similar elements in order to present the consistency of the description of the present invention. The directional terms mentioned in the embodiments, such as top, bottom, left, right, front, back, etc., are only directions referring to the additional schema. Therefore, the directional term used is used for explanation, not for Limit this creation.

Referring to FIG. 1 and FIG. 2, FIG. 1 and FIG. 2 are respectively a perspective view and an exploded view of the projection display apparatus 100 according to the first embodiment of the present invention. The projection display apparatus 100 includes a projection host 1 and a projection screen 2, and the projection screen 2 is detachably fixed to the top surface of the projection host 1 by a fixing structure. In this embodiment, the fixing structure includes a U-shaped bracket 3 and two insertion holes 16 formed on the top surface of the projection host 1. The U-shaped bracket 3 includes two rods 31 and a connecting rod 32. One ends of the two rods 31 are respectively connected to the two ends of the connecting rod 32, and the connecting rod 32 is provided with a groove 321 . The side of the projection screen 2 is detachably fixed to the groove 321 of the U-shaped bracket 3, and the two plungers 31 of the U-shaped bracket 3 are detachably fixed to the two insertion holes 16 on the projection main body 1, so that the projection screen 2 passes The fixing structure is detachably fixed to the top surface of the projection main unit 1.

Please refer to FIG. 3. FIG. 3 is a cross-sectional view of the projection display apparatus 100 according to the first embodiment of the present invention. The projection host 1 has a first space 11 for receiving the projection unit 12, and a second space 13 is recessed on the top surface of the projection host 1 to accommodate the mirror 14. The projection host 1 is further provided with a through hole 15 for communicating with the first space 11 and The second space 13. The image light generated by the projection unit 12 is projected through the through hole 15 to the mirror 14, and the mirror 14 reflects the image light to the projection screen 2 to form an image on the projection screen 2.

Referring to FIG. 4, FIG. 4 is another perspective view of the projection host 1 of the projection display apparatus 100 of the first embodiment. The bottom surface of the projection host 1 can be recessed with the third space 17. When the projection screen 2 is detached from the U-shaped bracket 3, and the U-shaped bracket 3 is detached from the projection host 1, the U-shaped bracket 3 can be accommodated in the third space 17 on the bottom surface of the projection host 1 for convenient storage and avoidance of loss.

Referring to FIG. 5, FIG. 5 is an exploded view of the projection display apparatus 200 of the second embodiment of the present invention. The projection display apparatus 200 includes a projection host 1 and a projection screen 2, and the projection screen 2 is detachably fixed to the top surface of the projection host 1 by a fixing structure. In the present embodiment, the fixing structure includes two L-shaped brackets 3' and two insertion holes 16 formed on the top surface of the projection main unit 1. Each of the L-shaped brackets 3' includes a plunger 31' and a link 32', one end of which is connected to one end of the link 32', and the link 32' is provided with a groove 321'. The side of the projection screen 2 is detachably fixed to the two grooves 321' on the two L-shaped brackets 3', and the two plungers 31' of the two L-shaped brackets 3' are detachably fixed to the two insertions on the projection host 1. The hole 16 is such that the projection screen 2 is detachably fixed to the top surface of the projection main unit 1 by a fixing structure. In addition, two third spaces (not shown) may be recessed in the bottom surface of the projection host 1 to accommodate the two L-shaped brackets 3', respectively.

Please refer to FIG. 6. FIG. 6 is an exploded view of the projection display apparatus 300 according to the third embodiment of the present invention. The projection display apparatus 300 includes a projection host 1' and a projection screen 2' which is detachably fixed to the top surface of the projection host 1' by a fixing structure. In the present embodiment, the fixing structure includes a card 21' extending from one side of the projection screen 2' and a socket 16' formed on the top surface of the projection host 1'. The projection screen 2' is detachably fixed to the insertion hole 16' on the projection main body 1' by the interposer 21'.

Please refer to FIG. 7. FIG. 7 is a cross-sectional view of the projection display apparatus 400 according to the fourth embodiment of the present invention. The projection display device 400 differs from the projection display device 100 shown in FIG. 3 in the difference between the projection host. The projection host 1" of the projection display device 400 has a first space 11" therein to accommodate the projection unit 12", the top surface of the projection host 1" is recessed with a second space 13", and the projection host 1" is further provided with a through hole 15" To connect the first space 11" and the second space 13". The image light generated by the projection unit 12" is projected through the through hole 15" and the second space 13" to the projection screen 2 to form an image on the projection screen 2. Therefore, the projection display device 400 employs a direct projection technique, and the projection display device 100 employs a reflective projection technique.

The projection display device proposed by the present invention may be a television or a computer screen, but is not limited thereto. The projection screen can be a flat screen or a curved screen. The projection screen can be a light-transmissive screen or a reflective screen. If it is a light-transmissive screen, the rear projection display technology is adopted, and if it is a reflective screen, the front projection display technology is adopted. The material of the projection screen can be plastic, paper or glass, but is not limited to this. The size of the projection screen can be between 20 吋 and 60 ,, but is not limited thereto. The projection unit may be an LED light source or a laser light source, but is not limited thereto. The mirror can be a flat mirror or a curved mirror.

In summary, the projection display device proposed by the present invention adopts a projection screen, and the projection screen does not need a complicated driving circuit, and can be made of a material that is not easily damaged by plastic or paper, and does not need an outer casing to protect, so that The projection display device is relatively light and thin. In addition, the projection screen is detachably separated from the projection host, so that the projection display device can be conveniently used, stored or moved. In convenient use, for example, in the case of dark ambient lighting, the reflective screen can be replaced and the rear projection display technology can be used. When the ambient illumination is bright, the light-transmissive screen can be changed and the front projection display technology can be used; It can be replaced with a 19-inch projection screen, which can be changed to a projection screen of 24 inches or larger when used at a long distance.

Although the technical content of the present invention has been disclosed in the above embodiments, it is not intended to limit the present creation. Anyone who is familiar with the art, and some modifications and refinements that do not deviate from the spirit of the creation should be covered in the scope of the creation. Therefore, the scope of protection of this creation is subject to the definition of the scope of the patent application.

100, 200, 300, 400‧‧‧ projection display device

1, 1', 1" ‧ ‧ projection host

11, 11" ‧ ‧ first space

12, 12"‧‧‧Projection unit

13, 13" ‧ ‧ second space

14‧‧‧Mirror

15, 15" ‧ ‧ through hole

16, 16’‧‧‧ jack

17‧‧‧ Third Space

2, 2'‧‧‧ projection screen

21’‧‧‧Flip board

3‧‧‧U-shaped bracket

3'‧‧‧L bracket

31, 31’‧‧‧Pull

32, 32'‧‧‧ connecting rod

321,321'‧‧‧ trench

1 is a perspective view of a projection type display device according to a first embodiment of the present invention; FIG. 2 is an exploded view of the projection type display device of the first embodiment of the present invention; FIG. 4 is another perspective view of the projection host of the projection display device according to the first embodiment of the present invention; FIG. 5 is an exploded view of the projection display device according to the second embodiment of the present invention; An exploded view of the projection type display device of the third embodiment; and Fig. 7 is a cross-sectional view of the projection type display device of the fourth embodiment of the present invention.

Claims (25)

A projection display device includes a projection host and a projection screen. The projection screen is detachably fixed to a top surface of the projection host by a fixing structure. The projection host has a first space therein to accommodate a projection unit. a second space is recessed on the top surface of the projection host to accommodate a mirror. The projection host is further provided with a through hole for connecting the first space and the second space, and an image light generated by the projection unit passes through the through hole. A hole is projected to the mirror, the mirror reflecting the image light to the projection screen to form an image on the projection screen. The projection display device of claim 1, wherein the projection screen is a flat screen or a curved screen. The projection display device of claim 1, wherein the projection screen is a light-transmissive screen or a reflective screen. The projection display device of claim 1, wherein the projection screen is made of plastic or paper. The projection display device of claim 1, wherein the projection screen has a size of 20 to 60 。. The projection display device of claim 1, wherein the projection unit uses a light emitting diode light source or a laser light source. The projection display device of claim 1, wherein the mirror is a plane mirror or a curved mirror. The projection display device of claim 1, wherein the fixing structure comprises a U-shaped bracket and two jacks formed on a top surface of the projection host, the U-shaped bracket includes two plungers and a connecting rod. One ends of the two plungers are respectively connected to two ends of the connecting rod, and the connecting rod is provided with a groove, and one side of the projection screen is detachably fixed to the groove, and the two plungers are detachably fixed to the same The two jacks on the projection host. The projection display device of claim 8, wherein a bottom surface of the projection host is recessed to accommodate the U-shaped bracket. The projection display device of claim 1, wherein the fixing structure comprises two L-shaped brackets and two jacks formed on a top surface of the projection host, and each of the L-shaped brackets comprises a plunger and a connecting body. a rod, one end of the rod is connected to one end of the connecting rod, the connecting rod is provided with a groove, and one side of the projection screen is detachably fixed to the two grooves on the two L-shaped brackets, the two L-shaped The two plungers of the bracket are detachably fixed to the two jacks on the projection host. The projection display device of claim 10, wherein the projection host has two third spaces recessed to receive the two L-shaped brackets. The projection display device of claim 1, wherein the fixing structure comprises a card extending from a side of the projection screen and a jack formed on a top surface of the projection host, wherein the projection screen passes the The card is detachably fixed to the jack on the projection host. The projection display device of claim 1, wherein the projection display device is a television or a computer screen. A projection display device includes a projection host and a projection screen. The projection screen is detachably fixed to a top surface of the projection host by a fixing structure. The projection host has a first space therein to accommodate a projection unit. a second space is recessed in the top surface of the projection host, and the projection host further has a through hole for connecting the first space and the second space, and an image light generated by the projection unit passes through the through hole and the second space Projected to the projection screen to form an image on the projection screen. The projection display device of claim 14, wherein the projection screen is a flat screen or a curved screen. The projection display device of claim 14, wherein the projection screen is a light-transmissive screen or a reflective screen. The projection display device of claim 14, wherein the projection screen is made of plastic or paper. The projection display device of claim 14, wherein the projection screen has a size of 20 to 60 。. The projection display device of claim 14, wherein the projection unit uses a light emitting diode light source or a laser light source. The projection display device of claim 14, wherein the fixing structure comprises a U-shaped bracket and two jacks formed on a top surface of the projection host, the U-shaped bracket includes two plungers and a connecting rod. One ends of the two plungers are respectively connected to two ends of the connecting rod, and the connecting rod is provided with a groove, and one side of the projection screen is detachably fixed to the groove, and the two plungers are detachably fixed to the same The two jacks on the projection host. The projection display device of claim 20, wherein a bottom surface of the projection host is recessed to accommodate the U-shaped bracket. The projection display device of claim 14, wherein the fixing structure comprises two L-shaped brackets and two jacks formed on a top surface of the projection host, each of the L-shaped brackets comprising a plunger and a connecting body a rod, one end of the rod is connected to one end of the connecting rod, the connecting rod is provided with a groove, and one side of the projection screen is detachably fixed to the two grooves on the two L-shaped brackets, the two L-shaped The two plungers of the bracket are detachably fixed to the two jacks on the projection host. The projection display device of claim 22, wherein the projection host has two third spaces recessed on the bottom surface thereof for respectively receiving the two L-shaped brackets. The projection display device of claim 14, wherein the fixing structure comprises a card extending from a side of the projection screen and a jack formed on a top surface of the projection host, wherein the projection screen passes the The card is detachably fixed to the jack on the projection host. The projection display device of claim 14, wherein the projection display device is a television or a computer screen.