Mirror with information display

• US 4,202,607 A
• Filed: 02/09/1978
• Issued: 05/13/1980
• Est. Priority Date: 03/17/1975
• Status: Expired due to Term

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Washizuka, Isamu, Matsuishi, Masanori, Teramura, Satoshi
• Primary Examiner(s): Bauer, Edward S.
• Application Number:
  US05/876,244
• Time in Patent Office: 824 Days
• Field of Search: 350/338, 350/288, 350/336, 58/152 R, 40/28 B, 40/219
• US Class Current: 349/113
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels
• CPC Class Codes: G02F 1/133553 Reflecting elements associated to illuminating devices G02F1/133605
• CPC Class Codes: G04G 17/08 Housings
• CPC Class Codes: G04G 21/08 Touch switches specially adapted for time-pieces
• CPC Class Codes: G04G 9/0035 constructional
• CPC Class Codes: G06F 15/0208 for combination with other devices having a different main function, e.g. watches, pens
• CPC Class Codes: G09F 19/16 involving the use of mirrors

Abstract

A display such as a liquid crystal display unit, a light emitting diode assembly, or an electroluminescent element is arranged behind a front glass window of a mirror for indicating, for example, current time information or calculator output information. A switching means is provided for controlling the enabling and disabling of the display. The display section forms a part of the mirror when the display is not enabled. In a preferred form, a liquid crystal display unit of the reflection type is attached to the rear surface of the front glass window of the mirror. The reflection film of the liquid crystal display unit functions as a reflection film of the mirror when the display is disabled, thereby forming a continuous mirror assembly even at the display section. That is, there is no distinction between the display region and the normal mirror region.

Claims

1. A selectively operable mirror and digital information display combination, comprising:

a front glass window having a reflection film on the rear surface thereof to form a mirror of a predetermined height;

a digital information display behind the front glass window for displaying characters of predetermined heights through the front glass window, said digital information display including a liquid crystal display unit of the reflection type, said reflection film being removed at a position where said liquid crystal display unit is attached;

said predetermined height of said mirror being at least several times higher than the height of said characters; and

a mode selection switch provided for enabling said digit information display to operate said combination in a display mode and disabling said digit information display to operate said combination in a mirror mode.

2. The mirror of claim 1, wherein the liquid crystal display unit includes a reflection means;

and wherein the reflection film on said glass window and said reflection means of said liquid crystal display unit form, in combination, a continuous mirror surface.

3. The invention defined in claim 1 which further includes:

a frame for supporting said front glass window; and

said mode selection switch is mounted on said frame.

4. The mirror of claim 3, in which said mode selection switch mounted on the frame comprises cooperative interleaved electrodes extending about the periphery of said frame and being responsive to touch to selectively enable and disable said digital display.

5. The mirror of claim 4, wherein the digital display is made of a liquid crystal display unit of the reflection type.

6. The mirror of claim 5, wherein the reflection means is removed at a position where the liquid crystal display unit of the reflection type is disposed.

7. The mirror of claim 6, wherein the reflection means and reflection electrodes of the liquid crystal display unit form, in combination, a continuous mirror surface.

8. The mirror of claim 5, wherein the liquid crystal display unit of the reflection type is removably attached to the rear surface of the front glass window.

9. The mirror of claim 3, wherein the mirror is contained in a cover casing of a compact.

10. The mirror of claim 3, which further comprises a battery disposed in the frame;

a time calculation circuit disposed in the frame; and

a driver circuit disposed in the frame for driving the digital display, whereby the digital display provides indication of current time information through the front glass window.

11. The mirror of claim 9, which further comprises a battery disposed in a bottom casing of the compact;

a computation circuit disposed in the bottom casing of the compact;

a keyboard means disposed in the bottom casing of the compact; and

a driver circuit disposed in the cover casing of the compact for driving the digital display, whereby the digital display provides indication of the computation result through the front glass window.

16. The mirror of claim 3, wherein said mirror is contained in a cover casing of a closable compact;

and

wherein said mode selection switch is mounted in said cover casing and responsive to a closing thereof to disable said digital display while said compact is closed and responsive to actuation by an operator to selectively enable and disable said digital display when said compact is open.

17. The mirror of claim 3, wherein said mirror is contained in a cover casing of a closable compact;

and

wherein said mode selection switch is mounted in said cover casing and responsive to a closing thereof to disable said digital display while said compact is closed and responsive to actuation by an operator to selectively enable and disable said digital display when said compact is open; and

which further comprises a battery disposed in the frame;

a time calculation circuit disposed in the frame; and

a driver circuit disposed in the frame for driving the digital display, whereby the digital display provides indication of current time information through the front glass window.

18. The mirror of claim 3, wherein said mirror is contained in a cover casing of a closable compact;

and

wherein said mode selection switch is mounted in said cover casing and responsive to a closing thereof to disable said digital display while said compact is closed and responsive to actuation by an operator to selectively enable and disable said digital display when said compact is open; and

which further comprises a battery disposed in a bottom casing of the compact;

a computation circuit disposed in the bottom casing of the compact;

a keyboard means disposed in the bottom casing of the compact; and

a driver circuit disposed in the cover casing of the compact for driving the digital display, whereby the digital display provides indication of the computation result through the front glass window.

12. Combined digital display and mirror means comprising:

a front glass window defining a major mirror surface area of a predetermined height;

a reflective surface substantially coextensive with said major mirror surface area disposed behind the obverse surface of said front glass window;

a digital liquid crystal information display means of the reflective type for displaying characters of predetermined heights within a discrete minor portion of said major mirror surface area;

said height of said major mirror surface being at least several times higher than the height of said characters; and

said information display means, when operative in a display mode, displaying digital information characters through said front glass window and when not operative in a display mode constituting an integral continuation of said major mirror surface area.

13. The combined digital display and mirror means of claim 12 which further includes mode selection switch means for enabling said digital information display to operate said combined means in a display mode and disabling said digital information display to operate said combined means in a mirror mode.

14. The combined digital display and mirror means of claim 13, wherein said mode selection switch means comprises touch responsive switch means.

15. The combined digital display and mirror means of claim 14, wherein said touch responsive switch means comprises contact means selectively bridged by the touch of an operator;

a T-type flip-flop means responsive to a bridged condition of said contact means to change state; and

circuit means responsive to said change of state of flip-flop means to enable and disable said display means respectively alternate occurrences of a bridged condition of said contact means.