CN2208735Y

CN2208735Y - Display assembly parts

Info

Publication number: CN2208735Y
Application number: CN 94206764
Authority: CN
Inventors: 谢德兴
Original assignee: LIKANG CO Ltd
Current assignee: LIKANG CO Ltd
Priority date: 1993-04-01
Filing date: 1994-04-01
Publication date: 1995-09-27
Anticipated expiration: 2004-04-01
Also published as: GB9306835D0

Abstract

The utility model relates to a display assembly part, comprising a display and an illuminating apparatus which is arranged at the back side of the display. The illuminating apparatus is composed of a main body with transparent or semi-transparent material, and a luminescent device is arranged at the periphery of the main body. So that the light from an illuminator enters the main body of the luminescent device, and thereby, the backlight which is convenient to read the display is provided.

Description

Display assembly parts

The utility model relates to a kind of display module, and it comprises that provides a lighting device backlight, reads being convenient to.

The purpose of this utility model is to provide a kind of display module of being convenient to reading displayed and can strengthening the eyes notice.

According to the utility model, display module comprises a display and the lighting device in the display back, described lighting device is made up of main body and the optical generator in the main body periphery of a transparent or semitransparent material, and the feasible light that comes out from optical generator enters the main body of lighting device and is easy to the backlight of reading displayed so that provide.

Main body preferably has the section of the direction convergence of leaving optical generator in an edge, so that make the backlight intensity that is provided by lighting device roughly even.

It is then better that main body has the back of a roughly smooth front and a bending.

In a preferred embodiment, the back of main body is roughly parabola shaped.

Display module also further is included in the retention device on the main body back, so that avoid the leakage by the light of back, or it drops to minimum to the major general.

Retention device preferably has the character of blooming (florescent nature).

Useful is that the back of main body has the coating or the coating of a light color.

Lighting device preferably also comprises the diffuser of a slice in the main body front.

Optical generator preferably is positioned at the inside of main body periphery.

Optical generator is preferably provided by at least one light emitting diode or bulb.

In first embodiment, main body is a plate that is roughly rectangle, and optical generator is positioned on the outside of plate.

In a second embodiment, main body is one and is roughly circular plate that optical generator is positioned on the mainboard cylindrical.

In a special construction, display is a LCD.In a different structure, display is made of an opaque element or a plurality of element on the lighting device front and/or in the front.

Adopt display module of the present utility model, can make things convenient for reading displayed, and can strengthen the notice of eyes.

Also with reference to the accompanying drawings the utility model is done more detailed description below by example, wherein:

Fig. 1 is the decomposition front perspective view according to first embodiment of a display module of the present utility model, and described display module has a rear part illumination apparatus;

Fig. 2 is the side cutaway view of the main body of lighting device among Fig. 1;

Fig. 3 is the front perspective view according to the lighting device of second embodiment of a display module of the present utility model;

Fig. 4 is the radial section figure of the main body of the lighting device among Fig. 3;

Fig. 5 is the decomposition front perspective view according to the 3rd embodiment of a display module of the present utility model;

Fig. 6 is the decomposition front perspective view according to the 4th embodiment of a display module of the present utility model.

At first, represented that is wherein implemented first display module 10 of the present utility model with reference to figure 1 and Fig. 2.This display module 10 is made of a preceding LCD or LCD display 11 and a rear lighting unit 12.LCD display 11 is rectangles, and is the general known type that is used for the display digit time.Lighting device 12 also is and LCD display 11 corresponding rectangles, and is positioned at the back of LCD display 11.

Lighting device 12 is made of the mainboard 13 of a transparent or semitransparent material (for example third rare plastics), tracing paper 35 and 3 light emitting diodes 15.Tracing paper 35 places the front of mainboard 13, and light emitting diode 15 is placed in the blind hole 16 of equidistant equipment on mainboard 13 top margins 14.As shown in Figure 2, mainboard 13 has the back 18 of a straight front 17 and a bending, extends to form the section of a contraction downwards.The back 18 of mainboard 13 be tint or be coated with light color, or provide for example white such light color coating.Swabbing material or coating preferably have the character of blooming, or have the feature of blooming or performance.

In use, enter mainboard 13 from above, illuminate mainboard 13 therefrom from the light of light emitting diode 15.Be used to stop the light from the back 18 to leak in the coating on the back 18 of mainboard 13, or it is reduced to minimum to the major general.This layout has guaranteed to enter front 17 that the major part of the light of mainboard 13 will be by mainboard 13 to front-reflection, provides thus to be convenient to read the backlight of time of being provided by LCD display, reading under the particularly convenient dark surrounds.Owing to have the character of blooming or feature, coating will provide the residual backlight of certain hour after light emitting diode 15 extinguishes.

The back 18 of mainboard 13 has a curvature that increases gradually on the direction of leaving light emitting diode 15.A kind of like this curve shape provides a reflection angle that increases gradually to continue to pass the light of coming downwards from light emitting diode 15, and described light has an intensity that reduces gradually.This layout has guaranteed at the vertical direction of lighting device 12 a basic backlight intensity is uniformly arranged.In this specific embodiments, the back 18 of mainboard 13 or its side direction section have parabolic shape.Tracing paper 35 itself is translucent, its effect be as diffuse component or filter element to strengthen the homogeneity of backlight intensity, the position of light emitting diode 15 can not be discovered on the horizontal direction of lighting device 12.Paper 25 can be colored to change backlight color.The change of backlight color also can be finished by variegate the optical filtering cap on single light-emitting component, and the light-emitting component in this specific embodiments is a light emitting diode 15, but also can replace with miniature bulb.

Can see that above-mentioned display module can be used for showing any information except that the time, for example measured value of the numerical value of display digit counter or measurement mechanism.

Referring now to Fig. 3 and Fig. 4, wherein represented to implement the lighting device 22 of second display module of the present utility model.Lighting device 22 has a circular master 23 of being made up of transparent or semitransparent third rare material, and master 23 has a center pit 23 ' and a crooked gradually radially section as shown in Figure 4 inwardly.Along the periphery 24 of master 23, provide that 12 equal angles separate and with respect to the groove 26 of light emitting diode 25 location of correspondence.

Master 23 has a straight front 27 and one to back 28 that center pit 23 ' radially bends.For back 28 provides a for example coating of blooming of the such light color of white.Coating on the back 28 of master 23 is used to stop the light by back 28 to leak or it drops to minimum to the major general.This layout has guaranteed to enter front 27 that most of light of master 23 will be by master 23 to front-reflection.

The back 28 this curve shapes of master 23 provide a reflection angle that increases gradually to the light that radially inwardly transmits from light emitting diode 15, and described light has an intensity that reduces gradually.This layout has guaranteed the backlight intensity uniformly that has in the radial direction roughly at lighting device.The back 28 of master 23 or its radially section have parabolic shape.

This display module comprises that also one is close to coaxial mounted circular LCD in lighting device 22 fronts or LCD display (not shown).

During use, from the optical path of light emitting diode 25 to entering master 23 and, so that by its front 27 illumination LCD display by back 28 reflections of master 23.For LCD display provides a liquid crystal dial plate, it comprise a designation number " 1 " to " 12 " with represent per five minutes outer minute ring and two in this minute digital in by 60 center coaxial rings of forming of extension line radially, be used for the hour hands and the minute hand of skimulated motion.LCD display is controlled by a suitable electronic clock circuit and is shown a simulated time, and wherein lighting device 22 is used to provide and is convenient to the backlight of time for reading.

Fig. 5 has represented that is implemented the 3rd display module 30 of the present utility model, described display module 30 comprise with above-mentioned second embodiment in identical plate-like lighting device 22.For the front 27 of master 23 provides the printing numeral 31 from " 1 " to " 12 " by circular arrangement.These numerals 31 be opaque in case provide by lighting device 22 backlight in eye-catching and be convenient to read.Clock/table the mechanical hook-up 32 of simulation places the back of lighting device 22, and its driving shaft 33 by the center pit 23 ' of master 23, therefore can support hour hands, minute hand and the second hand 34 that is used to show the time with one heart.

Fig. 6 has represented that one implements the 4th display module 40 of the present utility model, described display module 40 comprise with second embodiment in identical dish type lighting device 22 and with above-mentioned the 3rd embodiment in identical simulation clock/table mechanical hook-up 32 and the time, minute, second pin 34.This display module 40 does not have any minute numeral, but has on the front 27 that is positioned at master 23 and the opaque disk 41 that conforms to it.Disk 41 has a center pit 42, and in present embodiment, center pit 42 is designed to a colored shape.This layout provides a kind of colored shape backlight, is used to strengthen the notice and the easy time for reading of eyes.

Only disclose the utility model by way of example, those of skill in the art can make amendment and/or replace in the utility model scope that does not break away from by appending claims regulation described embodiment.

Blind hole 16 or 26 can be colored, as blueness, so that the back illumination an of blueness (or other color) is provided.

Claims

1, a kind of display module, it is characterized in that it comprises a display and the lighting device in the display back, described lighting device is made of the main body of a transparent or semitransparent material, and optical generator places an edge of main body so that make the main body that enters lighting device from the light of illuminator, be convenient to the backlight of reading displayed device thereby provide, main body has the back of a straight front and a bending and one and is leaving the section of assembling on the edge direction, so that make the backlight intensity that provides by lighting device along even on the length direction of front, wherein be provided with the resistance electro-optical device in the back of main body, so that avoid the leakage of light from behind, or to the major general it drops to minimum, and, a plurality of blind holes are arranged on its edge, an illuminator is housed in each blind hole.

2, display module as claimed in claim 1, the back that it is characterized by main body is a parabolic shape.

3, display module as claimed in claim 1 is characterized by the resistance electro-optical device and has the character of blooming.

4, display module as claimed in claim 1, the back that it is characterized by main body has the coating or the coating of a light color.

5, display module as claimed in claim 1, it is characterized by lighting device has a diffusion disk that covers on the main body front.

6, display module as claimed in claim 1 is characterized by optical generator and comprises light emitting diode.

7, display module as claimed in claim 1 is characterized by the main body that main body has a smooth rectangle.

8, display module as claimed in claim 1 is characterized by the main body that main body has a smooth circle, and optical generator is placed in the hole of main body periphery.

9, display module as claimed in claim 1, it is characterized by display is a LCD.