CN202972775U

CN202972775U - Light-emitting plate of external keyboard for tablet PC (tablet personal computer)

Info

Publication number: CN202972775U
Application number: CN 201220548032
Authority: CN
Inventors: 杨祖根
Original assignee: SHENZHEN YEGUANGXUAN ELECTRONIC TECHNOLOGY CO LTD
Current assignee: SHENZHEN YEGUANGXUAN ELECTRONIC TECHNOLOGY CO LTD
Priority date: 2012-10-24
Filing date: 2012-10-24
Publication date: 2013-06-05
Anticipated expiration: 2022-10-24

Abstract

The utility model is suitable for the field of electronic products and provides a light-emitting plate of an external keyboard for a tablet PC (tablet personal computer). The light-emitting plate comprises a light guide plate, LED light sources arranged on the side of the light guide plate, and a reflective film arranged at the bottom of the light guide plate, wherein the reflective film coincides with the light guide plate. The light-emitting plate is characterized in that a plurality of light guide regions comprising light guide dots formed by screen printing of light transmission printing ink are arranged on the surface, opposite to the keys of the external keyboard for the tablet PC, of the light guide plate; and the light guide regions correspond to the keys of the external keyboard for the tablet PC respectively. According to the light-emitting plate, the light guide regions are arranged in the positions, corresponding to the keys of the external keyboard for the tablet PC, of the light guide plate , so that compared with the conventional way that the light guide dots are distributed on the whole plate, the backlight is more targeted, the light utilization rate is increased, and more power is saved.

Description

A kind of luminous plaque of panel computer external connection keyboard

Technical field

The utility model belongs to the electronic product field, relates in particular to a kind of luminous plaque of panel computer external connection keyboard.

Background technology

panel computer does not possess external connection keyboard, the user need reconfigure external connection keyboard as input unit, because of the screen of panel computer itself smaller, therefore its intensity of illumination is very limited, when therefore light is slightly dark, external connection keyboard is not as being with lighting function can affect its use, so produced illuminated keyboard, and the LGP of existing illuminated keyboard is to lay the leaded light round dot on whole plate, although this kind mode can play certain leaded light effect, but the leaded light round dot is not to arrange respectively for the button on keyboard, because of the external connection keyboard of panel computer configuration more much smaller than the keyboard of notebook computer or desktop computer, therefore the character on the button on its keyboard, the fonts such as letter are also smaller comparatively speaking, make its result of use under low light environment of guarantee backlight so need stronger light, the luminous plaque that this whole plate is arranged the leaded light round dot is not strong because of its specific aim, backlight limited in one's ability, can not guarantee fully that the panel computer external connection keyboard has good result of use under low light environment, and the mode that this whole plate is arranged the leaded light round dot is not high to the utilization rate of light, and power consumption is also larger.

The utility model content

The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides that a kind of specific aim is more intense, display effect luminous plaque preferably under low light environment.

The utility model is achieved in that a kind of luminous plaque of panel computer external connection keyboard, the reflective membrane that comprises LGP, is located at the LED light source of described LGP side and is located at described LGP bottom, this reflective membrane and described LGP are superimposed, on the described LGP face relative with panel computer external connection keyboard button, be provided with a plurality of light guide zone that are made of the leaded light round dot of printing opacity ink silk screen printing, each described light guide zone is corresponding respectively with each button of panel computer external connection keyboard.

Particularly, every forming, described leaded light subregion consists of by a plurality of described leaded light round dots are uniform described light guide zone by a plurality of leaded lights by stages, and described leaded light subregion is circular, ellipse or polygon.

Particularly, light guide zone is circle, ellipse or polygon, and described light guide zone consists of by a plurality of described leaded light round dots are uniform.

The luminous plaque of the panel computer external connection keyboard that the utility model provides, it is provided with respectively light guide zone in the position corresponding with keyboard on luminous plaque, this light guide zone is also distinguished design according to the difference of button, make luminous plaque to the specific aim that has more backlight of panel computer external connection keyboard, strengthened its back light display function; This tactic pattern also makes the utilization rate to light improve, thereby more power saving.

Description of drawings

Fig. 1 is the structure chart of the luminous plaque of the panel computer external connection keyboard that provides of the utility model embodiment;

Fig. 2 is the A-A cutaway view in Fig. 1 of providing of the utility model embodiment;

Fig. 3 is the enlarged drawing to the part of the B in Fig. 1 that the utility model embodiment provides.

The specific embodiment

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.

as depicted in figs. 1 and 2, the structural representation of the luminous plaque of the panel computer external connection keyboard that provides for the utility model embodiment, comprise LGP 1, the reflective membrane 3 of being located at the LED light source 2 of LGP 1 side and being located at LGP 1 bottom, this reflective membrane and LGP 1 are superimposed, reflective membrane 3 is made by the PVC material, thereby have good plasticity and light-guiding function, on LGP 1 face relative with panel computer external connection keyboard button, be provided with a plurality of light guide zone 11, each light guide zone 11 is corresponding respectively with each button of panel computer external connection keyboard, light guide zone 11 is made of the leaded light round dot 1110 of printing opacity ink silk screen printing.The luminous plaque of the panel computer external connection keyboard that the utility model provides, its light guide zone that arranges on LGP is corresponding respectively with the button of panel computer external connection keyboard, compare traditional leaded light round dot and be covered with whole LGP, this kind structure specific aim is more intense, can make the display effect of button under low light environment of external connection keyboard of panel computer better, and this structure is higher to the utilization rate of light, thus also just more power saving.

As shown in Figure 3, light guide zone 11 is comprised of a plurality of leaded light subregions 111 intervals, leaded light subregion 111 is made of a plurality of leaded light round dots 1110, leaded light subregion 111 can be circle, ellipse or polygon, this kind is made of the structure design of light guide zone 11 leaded light subregion 111, each light guide zone 11 can be for from the button of its corresponding panel computer external connection keyboard different, and be designed to respectively different shapes, to make it having best display effect.

The color of the printing opacity printing ink of silk-screen leaded light round dot is one or more, can make like this external connection keyboard of panel computer have multiple different backlight color under low light environment, and the user can select the backlight color oneself liked according to the hobby of oneself.

Certainly, in the present embodiment, each light guide zone 11 can also directly be designed to circle, ellipse or polygon, and do not carry out zoning design, each light guide zone still is made of a plurality of leaded light round dots 1110, though this embodiment is good not as the display effect that subregion arranges, like this can be easier in process.

The above is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace or improvement etc., within all should being included in protection domain of the present utility model.

Claims

1. the luminous plaque of a panel computer external connection keyboard, the reflective membrane that comprises LGP, is located at the LED light source of described LGP side and is located at described LGP bottom, this reflective membrane and described LGP are superimposed, it is characterized in that, on the described LGP face relative with panel computer external connection keyboard button, be provided with a plurality of light guide zone that are made of the leaded light round dot of printing opacity ink silk screen printing, each described light guide zone is corresponding respectively with each button of panel computer external connection keyboard.

2. the luminous plaque of panel computer external connection keyboard as claimed in claim 1, it is characterized in that, every forming, described leaded light subregion consists of by a plurality of described leaded light round dots are uniform described light guide zone by a plurality of leaded lights by stages, and described leaded light subregion is circular, ellipse or polygon.

3. the luminous plaque of panel computer external connection keyboard as claimed in claim 1, is characterized in that, described light guide zone is circle, ellipse or polygon, and described light guide zone consists of by a plurality of described leaded light round dots are uniform.