KR200263775Y1 - Device for LCD display of mobile - Google Patents

Abstract

The present invention relates to a structure of a liquid crystal screen applied to a mobile phone, a PDA, etc. The structure of the LCD liquid crystal screen constituting two screens (main screen and sub-screen) provided on the inside and outside of the folder of the mobile phone or the PDA cover By simplifying, we propose a technical configuration that can minimize the thickness of folders.

To this end, the present invention is to arrange one light guide plate 11 in the middle of two screens located opposite to each other so as to simultaneously display the main screen and the auxiliary screen as one light guide plate.

As such, the LCD screen provided on the inner and outer surfaces of the cellular phone folder or the PDA cover is configured as a single light guide plate to minimize the thickness of the cellular phone and to reduce the size and weight of the cellular phone.

Description

LCD screen of portable communication terminal {Device for LCD display of mobile}

The present invention relates to a structure of an LCD screen applied to a cellular phone folder or a PDA, and a structure of an LCD liquid crystal screen constituting two screens (main screen and sub-screen) provided on the inner and outer surfaces of the folder of the cellular phone or the PDA cover. By simplifying, we propose a technical configuration that can minimize the thickness of folders.

In general, in the folder-type mobile phone, the main screen (5) provided on the inner side of the folder is composed of a large LCD screen to enhance the user's convenience by viewing a lot of information at a glance, while the outer side of the folder The side is provided with an auxiliary screen 6 for displaying the current state, the battery state or the current time of the mobile phone without the user opening the folder.

1 is a cross-sectional view illustrating a conventional folder in which a main screen and a sub screen are installed. Referring to FIG. 1, a configuration in which a main screen and a sub screen are installed in the related art is briefly described as follows.

That is, the folder is composed of three layers of the light guide plate 11a, the LCD liquid crystal panels 12a and 13a, and the protective plate 14a for forming the main screen, and the light guide plate 11b for the auxiliary screen and the liquid crystal panel ( 12b and 13b and the protective plate 14b are configured to be layered in three layers again on the back of the folder.

In general, in the LCD liquid crystal display, the light guide plates 11a and 11b are components that direct the path of light to the front surface. Scattered from the surface of the beads, the scattered light is directed to the LCD panel.

In addition, the LCD panel is located at the light exit portion on the light guide plate, and diffuses and scatters the light incident through the light guide plate to increase and equalize the luminance in the front direction of the backlight exit surface, and to the sheet surface Prismatic plates (condensing plates) 13a and 13b that prevent the light from the diffuser from exiting in the direction other than the front of the light-emitting surface and improve the light directivity to narrow the viewing angle to increase the brightness toward the front of the backlight-lighting surface. It consists of.

Due to the configuration of the LCD liquid crystal screen, the thickness of the folder becomes thick, which is not only inconvenient to use the mobile phone but also causes a problem that cannot be miniaturized.

The present invention was devised to solve the above-mentioned problems, and removes the partition wall 4a of the fixed frame formed between the LCD screen panel for the main screen and the LCD panel for the sub-screen, and the light guide plate 11. In order to form a screen on both sides of the folder (1) to reduce the overall thickness of the LCD module.

1 is a cross-sectional view showing the structure of an LCD screen of a conventional mobile phone

Figure 2 is a cross-sectional view showing an LCD liquid crystal screen of a portable terminal according to the present invention

3 is an explanatory diagram of a state in which an LCD liquid crystal screen according to the present invention is mounted on a mobile phone;

<Description of the symbols for the main parts of the drawings>

1: folder 2: mobile phone body

3: folder frame 4: internal fixed frame

4a: bulkhead 5: main screen

6: subscreen

11, 11a, 11b: Light guide plate 12a, 12b: Diffusion plate

13a and 13b: prism plate 14a and 14b: protection plate

Hereinafter, described in detail by the accompanying drawings of the present invention as follows.

1 is a cross-sectional view showing the structure of an LCD liquid crystal screen of a conventional mobile phone, FIG. 2 is a cross-sectional view showing the structure of an LCD liquid crystal screen of a mobile phone according to the present invention, and FIG. It is explanatory drawing of one state.

Mobile phone LCD screen according to an embodiment of the present invention shown in Figure 2 is about 80 to 90% of the light emitted from the light source, preferably 85% is refracted toward the main screen while the remaining 15% of light By arranging the light guide plate 11 between the two diffuser plates 12a and 12b to be refracted to the side of the auxiliary screen opposite to the opposite side, the two screens positioned opposite to each other by one light guide plate 11 can be efficiently constructed. .

Unexplained reference numeral 2 denotes a main body of the mobile phone, reference numeral 3 denotes a folder frame which is pivotally folded on the main body 2, and reference numeral 4 denotes an internal frame of a folder for fixing the components of the LCD screen. do.

3 is an explanatory view of a state in which the LCD liquid crystal screen according to the present invention is mounted on a mobile phone, and each light guide plate 11a and 11b is applied to each of the screens 5 and 6, respectively. It is effective to reduce the thickness.

Although the detailed description of the subject innovation has been described by taking specific embodiments of the subject innovation as an example, various forms, i.e. PDAs, by those skilled in the art to which the subject innovation belongs without departing from the concept of the subject innovation Modifications or changes in implementation, such as applying to the main screen and the auxiliary screen provided on the back of course are also included in the concept of the present invention.

As described above, the present invention removes the partition wall 4a of the fixing frame 4 that fixes the LCD panels for the two liquid crystal screens 5 and 6 provided on both sides of the folder of the mobile phone, thereby maintaining the main light guide plate as one light guide plate. Since the screen and the auxiliary screen to be displayed, to minimize the thickness of the folder having a respective LCD screen on both sides of the folder (1), it is a useful design for light weight and miniaturization of the mobile phone.

Claims (1)

In the LCD screen of the portable communication terminal, a main screen 5 is provided on the inner side, and an auxiliary screen 6 having a smaller size than the main screen is provided on the outer side opposite to the main screen. The main screen and the auxiliary screen are arranged with diffuser plates 12a and 12b, prism plates 13a and 13b, and protective plates 14a and 14b, respectively, with one light guide plate 11 positioned in the middle thereof. LCD liquid crystal display of the portable communication terminal characterized in that the configuration.