JPH065268U - Television that doubles as a clock - Google Patents

Abstract

(57) [Abstract] [Purpose] An image or time displayed on a liquid crystal display panel of a television can be enlarged and projected so that the image is easy to see and the time is easy to read. A television main body T having a transmissive liquid crystal display panel 2 for displaying an image or a time and a light source 3 for illuminating the liquid crystal display panel from behind, and a liquid crystal display which is assembled to the television main body T as necessary. It comprises a projection device P for projecting an image or time displayed on the plate 2 onto a screen, and the projection device P has a transmissive Fresnel lens 6 for condensing the light transmitted through the liquid crystal display plate 2, and It is composed of a diversion mirror 7 that diverts the light condensed by the Fresnel lens 6 in the screen direction, and a projection lens 8 that projects the light diverted by the diversion mirror 7 onto the screen.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a television that also serves as a clock, in which an image or time displayed on a transmissive liquid crystal display panel is projected on a screen so that the image or time can be easily read.

[0002]

[Prior art]

 As a television using a conventional liquid crystal display panel, a television using a non-transmissive liquid crystal display panel is generally used.

[0003]

[Problems to be solved by the device]

 These types of televisions have recently become easier to see images and are easier on the eyes, but because of insufficient resolution, people, landscapes, characters, etc. are unclear and difficult to see.

Further, the conventional television is exclusively used as a so-called image receiver, and there is no one that also serves as a timepiece using a liquid crystal display plate as a time display plate.

The present invention has been made in view of such conventional circumstances, and provides a television timepiece which can be easily viewed and read the time by making it possible to magnify and project the image or the time. The purpose is to provide.

[0006]

[Means for Solving the Problems]

 The television serving as a clock provided by the present invention is required for a television main body including a transmissive liquid crystal display panel for displaying an image or time, and a light source for illuminating it from behind, and the television main body. And a transmission type Fresnel lens for condensing the light transmitted through the liquid crystal display plate, the projection device projecting an image or time displayed on the liquid crystal display plate onto the screen. , A light-reflecting mirror for converting the light condensed by the Fresnel lens toward the screen, and a projection lens for projecting the light converted by the light-reflecting mirror onto the screen. .

[0007]

[Action]

 When the image or time is viewed directly on the liquid crystal display panel, power can be supplied to the image / sound circuit or the time / sound circuit of the television body to view the image or time in the same way as a normal television.

When the image or time on the liquid crystal display board is viewed by screen, a projection device is attached to the television main body, the light source is turned on to illuminate the liquid crystal display board, and the image or time on the television main body is displayed on the screen. It can be enlarged and projected.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. 1 and 2 are sectional views showing the internal structure of the embodiment, and FIGS. 3 and 4 are side views of the embodiment showing the external structure thereof. FIG. 5 is a perspective view of the embodiment.

In FIGS. 1 and 2, T is a television main body, and 1 is its case. This television main body T has a function as an original television and a function as a clock for displaying time. A transmissive liquid crystal display panel 2 for displaying an image or a time is attached to the opening 1a of the case 1, and a light source 3 for illuminating the display panel 2 from behind and an image / sound circuit 12 are mounted in the case 1. And a time / voice circuit 13 is built in. The circuits 12 and 13 can be selected by a changeover switch (not shown), and the illuminance of the light source 3 can be changed. Reference numeral 4 is a reflecting mirror that reflects the light of the light source 3 toward the liquid crystal display panel 2 side.

Reference numeral P denotes a projection device for projecting an image displayed on the liquid crystal display panel 2 or a digitally displayed time on a screen (not shown), and 5 is a case thereof. The plane shapes of the case 5 and the case 1 are the same. A transmissive Fresnel lens 6 that collects the light of the light source 3 that has passed through the liquid crystal display panel 2 is attached to the lower opening 5a of the case 5, and the light is condensed by the Fresnel lens 5 in the case 5. A dimming mirror 7 that diverts light toward the screen is built in, and a projection lens 8 that projects the light dimmed by the dimming mirror 7 onto the screen is attached to the front opening 5b of the case 5. Has been.

The assembly relationship between the television main body T and the projection device P is as shown in FIGS. 3 to 5.

3 to 5, reference numeral 9 denotes a pair of left and right guide bars fixed to the left and right side surfaces of the case 5 of the projection apparatus P, which can be moved up and down along the left and right side surfaces of the case 1 of the television body T. Has become. Reference numeral 10 is a slit provided in the guide bar 9. The guide bar 9 is configured to be fixed to the case 1 by a fixing screw 11 inserted into the slit 10 and screwed into the female screw of the case 1. When the fixing screw 11 is loosened, the guide bar 9, and thus the projection device P, moves up and down within the length of the slit 10. When the projector P is moved to the upper limit, the television main body T moves in the direction of the arrow 90 around the fixing screw 11 until the projection 12 of the case 1 contacts the guide bar 9, as shown in FIG. Rotate only once. The projection 12 mentioned here is a projection for positioning the television main body T at the liquid crystal display projection position as shown in FIGS.

Therefore, as shown in FIG. 4, the projection device P is temporarily pulled up by loosening the fixing screw 11 of the television at the normal viewing position shown in FIGS. When the projection device P is pushed down after being rotated 90 degrees, the television is set at the liquid crystal display projection position as shown in FIG.

Next, the operation will be described.

When the image or the time is directly viewed on the liquid crystal display panel 2, as shown in FIGS. 1 and 3, the liquid crystal display panel 2 of the television main body T is directed to the front side (viewer side) in a normal viewing position. And the image / sound circuit 12 or the clock / sound circuit 13 is selected by the changeover switch.

On the other hand, when enlarging the image or time displayed on the liquid crystal display panel 2 on the screen, as shown in FIG. 4, the television main body T and the projection device P are separated, and the former is rotated 90 degrees. Then, as shown in FIG. 2, set the liquid crystal display projection position and tighten the fixing screw 11. Then, the image / sound circuit 12 or the clock / sound circuit 13 is selected by the changeover switch, and the light source 3 is turned on to raise the illuminance. By doing so, the image or time displayed on the liquid crystal display plate 2 is enlarged and projected on the screen.

As described above, according to the television of the embodiment, the image or the time can be enlarged and projected, so that the image can be easily viewed and the time can be easily read as necessary.

[0019]

[Effect of device]

 As described above, according to the television of the present invention, the image or the time displayed on the liquid crystal display plate can be enlarged and projected by the projection device, so that the image can be easily viewed or the time can be read as necessary. The effect is that it can be made easier.

[Brief description of drawings]

FIG. 1 is a sectional view showing an internal configuration of an embodiment.

FIG. 2 is a sectional view showing the internal structure of the embodiment.

FIG. 3 is a side view showing an external configuration of the embodiment.

FIG. 4 is a side view showing an external configuration of the embodiment.

FIG. 5 is a perspective view showing the appearance of the embodiment.

[Explanation of symbols]

 T Television main body P Projection device 1,5 Case 2 Transmission type liquid crystal display board 3 Light source 6 Fresnel lens 7 Rotating mirror 8 Projection lens

Claims (1)

[Scope of utility model registration request] 1. A television main body provided with a transmissive liquid crystal display panel for displaying an image or time, and a light source for illuminating the liquid crystal display panel from behind, and the liquid crystal display panel assembled to the television main body as necessary. The projector comprises a projection device for projecting the displayed image or time on a screen, and the projection device comprises a transmissive Fresnel lens for condensing the light transmitted through the liquid crystal display plate, and the light condensed by the Fresnel lens. A light-reflective mirror that diverts light toward the screen,
A television that also serves as a watch, comprising a projection lens that projects the light that has been turned by the turning mirror onto a screen.