CN201022189Y

CN201022189Y - Plane display with induction touch device

Info

Publication number: CN201022189Y
Application number: CNU2007200040038U
Authority: CN
Inventors: 陈俊成; 郭政廷; 林正宽
Original assignee: TAIWAN LUBA CO Ltd
Current assignee: TVM Corp
Priority date: 2007-02-25
Filing date: 2007-02-25
Publication date: 2008-02-13
Anticipated expiration: 2017-02-25

Abstract

The utility model relates to a plane displayer with an inductive touching device, which combines the inductive touching device with the plane displayer. The inductive touching device comprises an inductive conductor. One end of the inductive conductor extends to the room between an inner wall of the external frame and the plane displayer, while other end of the inductive conductor is connecter with a circuit board. An inductive touching area is set on the surface of an external frame corresponding to the conducting unit. After the inductive touching are is touched by a conductor, the inductive conductor generates an inductive current which is sent to the circuit board. The inductive conductor comprises at least one conducting unit which could be electrically connected with the circuit board or is arranged on a bended flexible soft thin circuit board.

Description

Flat-panel screens with induction touching device

Technical field

The utility model relates to a kind of flat-panel screens, refers to a kind of flat-panel screens with induction touching device especially.

Background technology

Our life is now just marching toward an information age that electronic industry is flourish, various electronic multimedia products are weeded out the old and bring forth the new rapidly, really amusement and the leisure development for the mankind brought more selectivity, yet, along with the continuous research and development of current various electronics technologies with progress greatly, the screen and the display unit of associated electrical product are improved all the time, also pursue the target of bigger display floater again and again, satisfying the user, or further meet and create interests and the purpose of saving cost the demand in future.

Generally speaking, LCD flat-panel screens (Flat Panel Display, FPD) size is generally 1,000～1,200 millimeters x1,200～1,500 millimeters, and in the near future, glass substrate in this LCD flat-panel screens more may surpass every limit 2,500 millimeters scope, make that the length and width of LCD flat-panel screens can be increasing, but the design of dwindling LCD flat-panel screens thickness is the emphasis that the dealer endeavours to pursue improvement also always, for example: general LCD flat-panel screens 420 is equipped with at least one key device, see also shown in Figure 1, this key device comprises a body 400 (as: key casing) and circuit board a 410 (as: rigid circuit board, PCB), this body 400 is located at a housing 430 surfaces of this LCD flat-panel screens 420, this circuit board 410 is located between this housing 430 and the LCD panel 450 (LCD Panel) in it, this body 400 can touch the control switch 440 (Switch) on this circuit board 410 after pushing, to spread out of the signal of control, yet, because it is highly excessive that this

circuit board

410 and 440 of this control switchs cause jointly, make the dealer to provide bigger space to hold this key device in this

housing

430 and 450 of this LCD panels, so, for improving the minimum thickness of this LCD flat-panel screens 420, the dealer of this LCD flat-panel screens 420 just casts out the design of this kind key device, and develops induction type touch controlled key (Induction Touch Key).The induction type touch controlled key of being used always at present can be divided into:

1. capacitor induction type (Capacitive Induction):

The transparency electrode that utilization is arranged combines the capacitance variations that is produced with the static between the human body, touch controlled key is by after the curveization, when voltage forms a uniform electric field distribution, when conductive stylus sticker or bare finger head touching button, to guide the generation of electric current by the end place, angle of electric field, and cause voltage drop from the induced current that is produced, exporting control signal via the measurement of voltage drop.

2. infrared induction (Infra-Red Induction):

Utilize infrared light sources to receive the blocking principle,, when infrared ray light is interdicted, can learn that touch controlled key is touched being covered with infrared light sources and receiver in the touch controlled key and forming matrix, and then the output control signal.

3. electrostatic induction formula (Near Field Imaging, NFI):

Utilize two lamination glassy phases that are covered with transparent metal-oxide film to combine, when this metal-oxide film is subjected to passing through of AC system signal, to produce electrostatic field in the surface, when finger or sticker contact, make this electrostatic field change, and then the output control signal.

With the capacitor induction type button on the LCD flat-panel screens 520 500 is example, see also shown in Figure 2, a housing 510 that this LCD flat-panel screens 520 comprises and a LCD panel 530, this capacitor induction type button 500 is located at 530 of this housing 510 and this LCD panels, include an induction Copper Foil 540 and a circuit board 550, this induction Copper Foil 540 is located on this circuit board 550, one side of this this induction Copper Foil 540 of circuit board 550 tools is attached at the internal face of this housing 510, so, when touching 510 pairs of this housings, the user should respond to Copper Foil 540 parts, this induction Copper Foil 540 is just sensed a faradic generation, and then this circuit board 550 of conducting is to send a control signal.Yet, this circuit board 550 (being generally rigid circuit board) itself still has certain thickness, add many electronic building bricks set on this circuit board 550 (as: resistance or electric capacity), make these capacitor induction type button 500 overall height still have a certain height, can't improve on required space in this LCD flat-panel screens 520, therefore, the design of this capacitor induction type button 500 effect that improve in the space in this LCD flat-panel screens 520 is limited.And the space of 530 of this housing 510 and this LCD panels is thick more, gradually layer between the display window of this LCD panel 530 and this LCD flat-panel screens 520 is just dark more, because the effect of vision, the user will feel that these LCD flat-panel screens 520 windows are more next that institute is little many than actual.

In addition, this circuit board 550 must present a horizontal plane in the face of these induction Copper Foil 540 parts, make that this induction Copper Foil 540 can be smooth on this circuit board 550, when guaranteeing that the user touches arbitrary housing 510 surfaces, this induction Copper Foil 540 is able to effectively and these circuit board 550 generation induced currents.

In sum, how to design a kind of flat-panel screens with induction touching device, will effectively dwindle the thickness of this LCD flat-panel screens, improve the market competitiveness, this is the important topic that the utility model is inquired in this desire.

Summary of the invention

In view of this, because of the thickness of press-key structure itself occupies space excessive in this LCD screen, make and effectively to dwindle the thickness of this LCD screen, in order to solve these shortcomings, the inventor is practical experience and the research experience through for many years, and a kind of flat-panel screens with induction touching device is designed in research and development finally.

A purpose of the present utility model, provide a kind of flat-panel screens with induction touching device, this flat-panel screens comprises a housing and a display floater, this housing can cover a display floater around, make this display floater can watch the place can be by forming a viewing area on this housing, this induction touching device is located in this housing, comprise a sensor conductor and at least one circuit board, one end of this sensor conductor is located between a side of this housing and this this viewing area of display floater tool and with this housing and is sticked mutually, and end is connected with this at least one circuit board in addition, the thickness of this sensor conductor is less than this circuit board, so, this sensor conductor is arranged between a side of this housing and this this viewing area of display floater tool, the space between this housing of favourable reduction and this display floater, and then improve the thickness of this flat-panel screens.

Another purpose of the present utility model provides a kind of induction touching device that cooperates the flat-panel screens function choosing-item to show, it is attached with mark corresponding to the conductive unit place of housing inside on the housing surface of flat-panel screens, and be adjacent to this each conductive unit place in the viewing area of this flat-panel screens, then demonstrate the mark literal of the functional item of this conductive unit representative.Because conductive unit of the present utility model extends to the space between this housing and flat-panel screens, and the height in this space is low, so this housing surface can be very approaching with shown correspondence markings literal on this flat-panel screens corresponding to the mark at conductive unit place, so can provide the user to carry out the identification of easy vision accurately, option operations.

Description of drawings

Fig. 1 is a schematic diagram of known technology;

Fig. 2 is another schematic diagram of known technology;

Fig. 3 is the schematic side view of the utility model first embodiment;

Fig. 4 is the part sectional block diagram of the utility model first embodiment;

Fig. 5 is the stereogram of the utility model second embodiment;

Fig. 6 is the schematic side view of the 3rd embodiment of the present utility model;

Fig. 7 a is the application schematic diagram of arranged type button of the present utility model;

Fig. 7 b is the application schematic diagram of adjustment type button of the present utility model;

Fig. 7 c is the application schematic diagram of rotary button of the present utility model;

Fig. 7 d is the application schematic diagram of direction formula button of the present utility model;

Fig. 8 is that the 4th embodiment of the present utility model uses schematic diagram.

Symbol description:

1 flat-panel screens

10 housings

The 10a housing

110 viewing areas

20 display floaters

30 induction touching devices

31 sensor conductors

310 induction Touch Zones

32 circuit boards

321 soft thin circuit boards

322 conductive units

33 holding wires

40 main control circuits

400 bodies

410 circuit boards

420 LCD flat-panel screens

430 housings

440 control switchs

450 LCD panels

500 induction type buttons

510 housings

520 LCD flat-panel screens

530 LCD panels

540 induction Copper Foils

550 circuit boards

Embodiment

Be the purpose of this utility model, shape, constructing apparatus feature and effect thereof, further by understanding with understand, cooperate graphicly now for embodiment, be described in detail as follows:

The utility model is a kind of flat-panel screens with induction touching device, see also Fig. 3, shown in Figure 4, this flat-panel screens 1 (as: LCD, flat plasma display or the like) comprises a housing 10, this housing 10 be coated on a display floater 20 (as display panels) around, and define a viewing area 110 in the place watched of this display floater 20.

This induction touching device 30 comprises a sensor conductor 31 and at least one circuit board 32, the medial extremity of this sensor conductor 31 extends to the space of 20 of this housing 10 and this display floaters, and attach the internal face that is incorporated into this housing 10, and outboard end is connected with this circuit board 32.Corresponding to these sensor conductor 31 positions, then be defined as responding to Touch Zone 310 on the surface of this housing 10.

When the user touch with a finger or a conductor 10 pairs of this housings should the induction Touch Zone 310 of sensor conductor 31 after, this sensor conductor 31 is sensed an induced current and it is reached this circuit board 32, to produce a corresponding control signal.

As shown in Figure 4, this circuit board 32 can be connected with a main control circuit 40 in this flat-panel screens 1 via winding displacement or holding wire 33, the thickness of this sensor conductor 31 is less than this circuit board 32, make the space between this housing 10 and the display floater 20 be able to effective reduction, and then reduce the thickness of this flat-panel screens 1.

Among the utility model first embodiment shown in Figure 4, this sensor conductor 31 comprises that a soft thin circuit board 321 (as flexible circuit board) and at least one conductive unit 322 are (as iron plate, sheet metal, Copper Foil, or exposed electric wire), this conductive unit 322 is configured in the upper surface of this soft thin circuit board 321, and in the face of these housing 10 internal faces, and be the conductive path internal face that is laid with this conductive unit 322 of connection with the technology of known circuits plate wiring on this soft thin circuit board 321, so when the user touch with finger or conductor 10 pairs of this housings should the position of conductive unit 322 after, this conductive unit 322 can be laid the induced current of sensing on this soft thin circuit board 321 conductive path and be sent to this circuit board 32.

Consult shown in Figure 5ly, it is to show second embodiment of the present utility model, and the sensor conductor 31 of this embodiment can directly be formed by plural conductive unit 322, and an end of described conductive unit 322 is electrically connected mutually with this circuit board 32 respectively.Each conductive unit 322 is attached at this housing 10 internal faces respectively, equally can the user touch with finger or conductor 10 pairs of this housings should the position of conductive unit 322 after, by this conductive unit 322 induced current of sensing is sent to this circuit board 32.

Because this housing 10 is a non-conductor, when the user touches these housing 10 each conductive unit 322 parts of correspondence with the object (as finger tip or conducting objects) of tool conductor characteristics, when respectively this conductive unit 322 is sensed the touching of this object, just produce an induced current and be passed to this circuit board 32, make this circuit board 32 produce a corresponding control signal, this circuit board 32 reaches this control signal main control circuit 40 (seeing Fig. 4 again) in this flat-panel screens 1 again to carry out default function (as screen display function).

Among the two above-mentioned embodiment, this soft thin circuit board 321 adds that the thickness of the thickness of this conductive unit 322 or described conductive unit 322 itself all can make the distance of 20 of this housing 10 and this display floaters dwindle effectively, make this flat-panel screens 1 just can further improve its thickness.Moreover, because this soft thin circuit board 321, this conductive unit 322 are all had a flexible, flexible this soft thin circuit board 321, this conductive unit 322 itself, in order to cooperate the housing 10a that attaches the tool curved surface features, the utility model the 3rd embodiment as shown in Figure 6, therefore, the utility model need not be only limited to the flat-panel screens 1 that is smooth housing 10.

This circuit board 32 can be a hard circuit board or a flexible circuit board, be inserted with many electronic building bricks (as resistance or electric capacity etc.) on it, but with touching device 30 normal operations so that be somebody's turn to do induction, this circuit board 32 adds the thickness of the above electronic building brick itself, makes this circuit board 32 need bigger space.But in design of the present utility model, this circuit board 32 is located at the space between an ora terminalis of this housing 10 and this display floater 20, so the kind confined space of having utilized this flat-panel screens 1 that adds.This circuit board 32 also can directly be embedded on this main control circuit 40, becomes the application module on this main control circuit 40.

It is quite numerous that this induction touching device 30 can be applicable to the kenel of the kind of this housing 10 and conductive unit 322.Each conductive unit 322 is hidden in this housing 10, and at this housing 10 corresponding to these conductive unit 322 positions, then can various forms showing to provide the user to touch option purpose form, see also shown in Fig. 7 a～Fig. 7 d, comprising:

1, the arranged type button (is seen Fig. 7 a): represent various option (as: information is provided) usually, be that described conductive unit 322 is configured on the soft thin circuit board 321, and equidistantly be arranged on these housing 10 internal faces, be available for users to send after the touching a corresponding control signal;

2, adjustment type button (seeing Fig. 7 b): the option of representing gradient type usually, size as volume or contrast, be that described conductive unit 322 is arranged on the soft thin circuit board 321 thick and fast with one horizontal (parallel), and equidistantly be arranged in this housing 10 internal faces, can produce a corresponding control signal for touching the back towing;

3, rotary button (seeing Fig. 7 c): as the album button, be applicable to that another kind chooses the application of project, described conductive unit 322 is to be arranged on the soft thin circuit board 321 with a toroidal (Shuttle), and equidistantly be arranged in this housing 10 internal faces, can send a control signal in corresponding position for rotation touches the back towing;

4, direction formula button (seeing Fig. 7 d): the option of representing directionkeys usually, this conductive unit 322 is with the arrangement of a crosswise (Cross) or is distributed on this soft thin circuit board 321, and be laid in housing 10 internal faces, can send a corresponding control signal for the touching back.

In addition, induction touching device 30 of the present utility model can be incorporated into the manipulation function of flat-panel screens 1, makes user's operation more easy.For example shown in Figure 8, it shows among the utility model the 4th embodiment, be that several conductive unit 322 hidden columns are put housing 10 internal faces in flat-panel screens 1, and can be attached with mark (for example circle shows or color) corresponding to each conductive unit 322 places on the surface of this housing 10.And the viewing area 110 of this flat-panel screens 1 is being adjacent to this each conductive unit 322 places, then demonstrate the mark literal of functional item of each conductive unit 322 representatives of this induction touching device 30, these mark literal can be achieved with the Display Technique of software program according to the different demands of product function and change.Function (On Screen Display is adjusted in the demonstration that for example is applied in display, OSD) time, this screen display function can provide various setting screen information interfaces on this viewing area 110, for example brightness (Brightness), contrast (Contrast), color (Color), size, rotation, finely tune, leave etc., carry out vision identification, option operations so that the user to be provided.

The above only is the preferable specific embodiment of the utility model, but structural feature of the present utility model is not limited thereto, and anyly is familiar with this operator in the utility model field, can think easily and variation or modification, all can be encompassed in the claim.

Claims

1. flat-panel screens with induction touching device, this flat-panel screens includes a display floater and a housing, this housing coat this display floater around, and definition has a viewing area on this display floater, it is characterized in that:

This flat-panel screens is combined with an induction touching device, this induction touching device comprises a sensor conductor, one end of this sensor conductor extends the space that is configured between this housing internal face and this display floater, and the other end of this sensor conductor is connected with a circuit board, on this housing surface corresponding to this conductive unit position, then be defined as responding to the Touch Zone, after this induction Touch Zone is subjected to conductor touching, produces an induced current by this sensor conductor induction and reach this circuit board.

2. the flat-panel screens with induction touching device as claimed in claim 1 is characterized in that this sensor conductor comprises:

One soft thin circuit board is attached at the internal face of this housing;

At least one conductive unit is laid between this housing internal face and this soft thin circuit board, and this conductive unit is electrically connected on this circuit board via this soft thin circuit board.

3. the flat-panel screens with induction touching device as claimed in claim 2 is characterized in that: this soft thin circuit board tool flexible.

4. the flat-panel screens with induction touching device as claimed in claim 1, it is characterized in that: this sensor conductor comprises at least one conductive unit, is laid in this housing internal face, this conductive unit is electrically connected on this circuit board.

5. the flat-panel screens with induction touching device as claimed in claim 1, it is characterized in that: this circuit board is connected in a main control circuit that is located in this flat-panel screens via a holding wire.

6. the flat-panel screens with induction touching device as claimed in claim 1 is characterized in that: this circuit board is positioned at the space between an ora terminalis of this housing and this display floater.

7. the flat-panel screens with induction touching device as claimed in claim 1, it is characterized in that: the viewing area of this flat-panel screens is in the induction Touch Zone that is adjacent to this housing surface, demonstrate this induction Touch Zone the mark literal of functional item of corresponding conductive unit representative.