CN2665748Y

CN2665748Y - Liquid crystal display device with camera

Info

Publication number: CN2665748Y
Application number: CN 200320131526
Authority: CN
Inventors: 荣新华; 郑轶民; 代华锋
Original assignee: Lenovo Beijing Ltd
Current assignee: Lenovo Beijing Ltd
Priority date: 2003-12-26
Filing date: 2003-12-26
Publication date: 2004-12-22
Anticipated expiration: 2013-12-26

Abstract

The utility model discloses an LCD with camera, comprising at least a camera. And a depressed groove is arranged on one side of the LCD, and a hole is arranged on the side end-face of the depressed groove toward the inner part of the display. And the LCD further comprises an illuminating part which at least includes an illuminating lamp used for illumination, and the illuminating part and the camera are arranged in the same outer casing. An opening for uncovering the illuminating lamp and the camera is arranged on the outer casing. A shaft which is contained in the hole is arranged on the side end of the outer casing. The user of the utility model can freely use the camera and operate the computer in the dark environment, providing a great convenience for the user.

Description

A kind of LCD with camera

Technical field

The utility model relates to the computer product field, particularly relates to a kind of LCD that has camera.

Background technology

In the LCD of a lot of notebook computers, all embedded a camera that volume is very little at present, the user can take pictures easily or make a video recording in the operational computations machine like this, and can be presented at photo on the display screen in real time, thereby bring great convenience to the user, also brought infinite enjoyment simultaneously.Fig. 1 shows the circuit diagram of prior camera.

For the camera that embeds on the notebook computer, except can being used for taking pictures, can also have a lot of other purposes, for example Video chat or videophone etc.But present camera all continues illumination functions, and relatively under the situation of dark, the use of camera will be subjected to great restriction to environment so around.Though can carry out the moment illumination by flashlamp when using camera under dark surrounds, to take pictures, but when carrying out Video chat or videophone for the use camera, moment, glittering flashlamp was helpless obviously, thereby had brought inconvenience to the user.

In addition, in a dark relatively environment, if not illumination on the keyboard of notebook computer, the function shortcut, so just need the operator to possess very superb touch system skill or very familiar to the keyboard of notebook computer, and a lot of domestic consumers obviously do not reach this familiarity, make troubles therefore for user's operation yet.

Therefore, urgently wish to have camera on the LCD at present, make the user under dark surrounds, also can use camera and operating computer freely with illumination functions.

The utility model content

In view of this, fundamental purpose of the present utility model provides a kind of LCD that has camera, makes the user can use camera and operating computer freely freely under dark surrounds.

Above-mentioned purpose of the present utility model is achieved by the following technical solutions:

A kind of LCD that has camera, at least comprise camera, and have a groove perpendicular to the perforation of display screen plane in LCD one side, two side end faces of groove have a hole to display interior respectively, LCD further comprises an illumination section, illumination section comprises the illuminating lamp that is used to throw light at least, this illumination section and camera are arranged in same shell, an end face of shell has the opening that exposes illuminating lamp and camera, shell has outwards outstanding axle perpendicular to the both sides of plane of the opening, and axle is positioned at the hole.

In above-mentioned LCD, the axle and the hole be cylindrical, and spool external diameter and the internal diameter in hole be complementary.Axle can further be a hollow shape, and the position that is complementary in axle and hole has a metal protuberance respectively, and metal protuberance is connected with the electric wire that is connected to illumination section respectively and is connected to the electric wire of the power module of display.The metal protuberance here can be a foil.

In above-mentioned LCD, illumination section further comprises the photoresistance and the semiconductor field effect transistor of polyphone, and shell and open end opposing end faces are provided with a light hole, and the position of light hole is positioned near the position of photoresistance.The photoresistance here is made up of a phototriode, a current-limiting resistance and a divider resistance.

In above-mentioned LCD, lighting circuit further comprises a light source switch.

In above-mentioned LCD, illuminating lamp is a light emitting diode, and can have three, they be distributed in camera near.

The LCD here can be the LCD of notebook computer.

From technique scheme as can be seen, by further having increased a lighting circuit at the shell that camera was arranged in, thereby can in the camera shooting, continue illumination, and when camera is idle, also can throw light on keyboard and quick functional key.Thereby made things convenient for the user, made the user can under dark surrounds, use camera and operating computer freely freely.

In addition, the utility model can be provided with a light source switch for lighting circuit, convenient control to lighting circuit.The light source switch here can be realized by the form of pair of metal projection, the convenient manufacturing and use.

Simultaneously, the utility model can increase a photoresistance and semiconductor field effect transistor in lighting circuit, a light hole is set on shell simultaneously, by the ambient light that sees through from light hole is shone strong and weak perception, can make lighting circuit open automatically or close, and can make the illumination intensity adaptive change of illuminating lamp, thereby make illuminating effect of the present utility model intelligent more.

Description of drawings

Fig. 1 is the circuit diagram of prior camera module;

Fig. 2 is the circuit diagram of camera module of the present utility model;

Fig. 3 is a general illustration of the present utility model;

Fig. 4 shows the detailed structure of the arrangement form of Fig. 3;

Fig. 5 is the vertical view of Fig. 4.

Embodiment

Below in conjunction with the drawings and specific embodiments the utility model is elaborated.

Fig. 2 shows the circuit diagram of camera module of the present utility model.As can be seen from Figure 2, the utility model has increased a lighting circuit on the basis of original circuit.Specifically, lighting circuit comprises three high brightness white light-emitting diodes (LED), current-limiting resistance R2, divider resistance R1, phototriode Q1, mos field effect transistor (MOSFET) Q2 and light source switch S.Wherein, three LED are connected in parallel, and the collector of Q1 connects the negative pole of LED, and through light source switch S ground connection, its base stage is experienced ambient light according to strong and weak, and makes Q1 be in conducting state or cut-off state in view of the above, and the grid of its emitter and Q2 is connected; The source electrode of Q2 meets power supply VCC, and drain electrode then connects the positive pole of LED; The end of R1 connects power supply VCC, and the other end connects the grid of Q2, is used to reduce the voltage at Q2 two ends.

Certainly can understand, the LED here is not limited to three, nor is confined to white, and can be any color that the user likes, and different LED also can have different colors.

In above-mentioned lighting circuit, LED is used to throw light on.R1, Q1 and Q2 form photoresistance, and the base stage of Q1 is experienced extraneous intensity of illumination, and when ambient lighting was strong, Q1 was in conducting state, and the resistance that presents is very little, and this moment, the grid voltage of Q2 approached zero, and Q2 closes, and three LED do not work; On the contrary, when a little less than the ambient lighting, Q1 is in cut-off state, and the resistance that presents is very big, and this moment, the grid voltage of Q2 approached VCC, and Q2 opens, and three LED are luminous, thereby throw light on.Certainly can understand, LED is under the state of illumination, and its luminous intensity can change along with the variation of ambient lighting power.

In above-mentioned lighting circuit, S is a light source switch, when S is closed, and the circuit operate as normal, when S disconnected, circuit then quit work.Therefore, the user can start the illumination functions of camera or close this function by the closed and disconnected of control S.

Circuit structure of the present utility model has been described above, and the following describes the LCD with notebook computer is that example illustrates structure of the present utility model and arrangement.

As shown in Figure 3, CCD camera assembly 2 of the present utility model comprises camera circuit and lighting circuit, they are integrated in the rectangular parallelepiped shell of a rectangle, just have corresponding perforate in the relevant position of camera and LED, make a video recording and take pictures thereby can make camera see through perforate, and make the light beam of LED can shine housing exterior.Annexation between CCD camera assembly 2 and the shell can be various ways such as sticker, screw connection, welding, and the utility model does not carry out any restriction to this.On rectangular parallelepiped shell two sides vertical, a cylindrical protrusion is arranged respectively, thereby formed axle 4 of the present utility model with plane of the opening.Axle 4 is a hollow structure, and the electric wire 6 of camera circuit and the light source electric wire 7 of lighting circuit are connected to the power module of display 1 from axle 4, by its power supply of electric power source pair of module of display 1.For notebook computer, electric wire 6 and light source electric wire 7 all are connected to mainboard, and power module is powered to camera and lighting circuit by mainboard.

A end that is connected pivot in the LCD 1 of notebook computer away from display 1 and keyboard portion, have a rectangular recess therebetween, this rectangular recess has three end faces: lower surface and two side end faces, just the top of groove is hatch frame, and opening penetrates into the back side from frame one side of LCD always, and just the B face from normal theory penetrates into the A face.Can easily CCD camera assembly 2 be installed in this groove by opening like this.In addition, two side end faces at groove all have a columniform hole to LCD inside, the length in this hole and internal diameter are complementary with the length and the external diameter of axle 4 respectively, axle 4 can be fixed in the cylindrical hole of display interior like this, thereby whole CCD camera assembly 2 is installed on the display 1.

In the practical set process, LCD is by a display frame it to be clipped on the display back side, thus fixing display.Equally, the cylindrical hole of the display interior here combines and forms by laying respectively at two half-cylindrical holes on the display frame and the display back side in fact, and groove also is to be combined together to form by two groove parts that lay respectively on the display frame and the display back side.When assembling CCD camera assembly 2, at first CCD camera assembly 2 is placed in the groove of upper end, the display back side, axle 4 is placed in two semi-circular hole that adapt then, next when the assembling LCDs, buckle the display frame, by modes such as screw connections the display frame and the display back side are fixed together, thereby two half-cylindrical holes are combined, also just fixed CCD camera assembly 2.

Fig. 4 shows the concrete structure of the mounting means of Fig. 3.As shown in Figure 4, the CCD camera assembly 2 according to band illumination functions of the present utility model comprises camera 3 and light source 5.Here the LED in the just aforementioned lighting circuit of light source 5.CCD camera assembly 2 links together by axle 4 and computer display 1.Camera 2 is connected to the power module (not shown) of display by camera electric wire 6, and light source 5 is connected to the power module of display by light source electric wire 7.

Because axle of the present utility model 4 is columniform, and the hole of stationary shaft 4 also is columniform, and therefore camera of the present utility model can rotate, and just can make circumference around the axis of axle 4 and rotate.Can make things convenient for using and protecting of camera like this.

In order to control the closed and disconnected of lighting circuit more neatly, can be with light source switch contact 8 as light source switch.The light source switch contact 8 here can be a metal protuberance that is positioned on the axle 4, it connects the light source electric wire 7 of camera inside, simultaneously, on the display screen 1 of notebook computer bearing shaft 4 in the air to a metal protuberance should be arranged, its connects the light source electric wire 9 that links to each other with power supply.The metal protuberance here can adopt extremely thin sheet metal when realizing, sheet metal is attached in the hole that plastic material makes, thereby makes axle 4 more fastening with being connected of hole.Mode by welding behind the sheet metal here connects light source electric wire 7 or 9.When camera faces toward the operating personnel of notebook computer, two metal protuberances contacts, two sheet metals contacts just, thus make the light source electric wire 7 of camera inside and the light source electric wire 9 that is connected to power supply be communicated with lighting circuit work like this; And camera will be rotated to be the operating personnel that deviate from notebook computer the time, because the rotation of axle 4, two metal protuberances no longer contact, thereby light source electric wire 9 disconnections that make the light source electric wire 7 of camera inside and be connected to power supply are connected, and lighting circuit is not worked like this.In this way, can lighting-off easily when the user does not need to use camera.

Certainly, the sheet metal here can be provided with a predetermined arc length, and the arc that the sheet metal in the hole for example is set is 30 degree, and when camera rotated, at the scope intraoral illumination circuit working of these 30 degree, lighting circuit was not then worked when other 330 spend like this.The arc length here can be according to actual needs and any setting.

Fig. 5 shows the vertical view of Fig. 4.Can be clear that from Fig. 5 have a light hole at the shell back side of CCD camera assembly 2, the distance of this light hole and photoresistance 10 is very near, thereby extraneous light can be shone in the photoresistance 10 by light hole.The photoresistance 10 here is made up of R1, Q1 and Q2 as previously mentioned, when strong illumination arrives the base stage of Q1, lighting circuit work as previously mentioned, if and the low light level or when not having illumination to be mapped to the base stage of Q1, then lighting circuit is not worked, thereby make the power that to experience external light source automatically according to camera of the present utility model adjust the power of light, make this camera have adaptation function, make the effect of illumination better.

The front has been carried out more detailed explanation by CCD camera assembly being installed on the notebook computer to the utility model, is appreciated that the utility model is applied to LCD or other LCD that is used for desk-top computer with also can having no obstacle.

Therefore being appreciated that above-mentioned is to displaying of the present utility model, rather than restriction.

Claims

1. LCD that has camera, at least comprise camera, it is characterized in that, have groove in LCD one side, described groove side end face has the hole to display interior, and described LCD further comprises an illumination section, described illumination section comprises the illuminating lamp that is used to throw light at least, this illumination section and camera are arranged in same shell, and described shell has the opening that exposes illuminating lamp and camera, and described shell side has the axle that is contained in the above-mentioned hole.

2. the LCD that has camera according to claim 1, described axle and described hole are cylindrical, and spool external diameter and the internal diameter in hole be complementary.

3. the LCD that has camera according to claim 2, it is characterized in that, described axle is a hollow shape, the position that is complementary in axle and hole has a metal protuberance respectively, and described metal protuberance is connected with the electric wire that is connected to illumination section respectively and is connected to the electric wire of the power module of display.

4. the LCD that has camera according to claim 3 is characterized in that described metal protuberance is a foil.

5. the LCD that has camera according to claim 1, described illumination section further comprises the photoresistance and the semiconductor field effect transistor of polyphone, described shell and open end opposing end faces are provided with a light hole, and the position of described light hole is positioned near the position of photoresistance.

6. the LCD that has camera according to claim 5, described photoresistance is made up of a phototriode, a current-limiting resistance and a divider resistance.

7. the LCD that has camera according to claim 1, described lighting circuit further comprise a light source switch.

8. the LCD that has camera according to claim 1, described illuminating lamp is a light emitting diode.

9. the LCD that has camera according to claim 1, described illuminating lamp have three, described three illuminating lamps be distributed in camera around.

10. the LCD that has camera according to claim 1, described LCD are the LCD of notebook computer.