CN101887683B

CN101887683B - Plasma display device

Info

Publication number: CN101887683B
Application number: CN 201010216242
Authority: CN
Inventors: 金泽义一; 藤崎隆
Original assignee: Hitachi Plasma Display Ltd
Current assignee: Hitachi Consumer Electronics Co Ltd
Priority date: 2006-07-04
Filing date: 2006-07-04
Publication date: 2012-01-25
Anticipated expiration: 2026-07-04
Also published as: CN101887683A

Abstract

The invention provides a scanner driver for a PDP (Plasma Display Panel) device, which is a technique capable of guaranteeing or improving the performance of power consumption and temperature in a configuration structure with base plates and a plurality of ICs (Integrated Circuit), particularly in an area comprising an IC (Integrated Circuit) in the second position from the top. The scanner driver (122) is provided with at least two base plates (20), such as an upper base plate and a lower base plate, and the base plates carry a plurality of ICs (Integrated Circuit) (30) connected with a terminal (40) of a Y electrode and provided with a plurality of outputs. One part of the outputs of one part of the ICs (Integrated Circuit) (30) are not connected with the terminal (40) of the Y electrode, and one of the ICs (Integrated Circuit), namely (#2), is configured in the second position from the top of a configuration structure.

Description

Plasm display device

This case be that October 27, application number in 2008 are 200680054404.2 the applying date, denomination of invention divides an application for the patented claim of " plasm display device ".

Technical field

The present invention relates to plasma display (PDP) and display device thereof (plasm display device: the PDP device), particularly relate to the actual installation structure of driving circuit (driver).

Background technology

The PDP device from the superiority of display area and the capacity of display, particularly response performance, is expected as the display device that can realize that panchromatic big picture shows.Now, as the display device of direct viewing type, realize from 40 types that other equipment, can't realize to the big picture more than 60 types.

In existing P DP device, for example integrated as the scanner driver of the turntable driving that is used for scan electrode (Y electrode) of driver with the unit of 64 outputs etc., constitute by a plurality of IC (scanner driver IC) on the substrate (scanner driver substrate).In addition, under the situation of the PDP device of the big picture of 40 types～60 types, generally scanner driver is divided into up and down two scanner driver substrates and organizes with IC and carry out actual installation.

As the driver of PDP with and the formation that the is connected example of IC (driver IC) and PDP electrode terminal; Have the part that makes the IC of topmost among a plurality of IC for using (promptly not being connected) with the PDP electrode terminal thus state reduces the power consumption of IC, the situation of the reduction of the temperature of the IC of the upper side position in the implement device configuration (Figure 11 that states after the reference).For example under the inconsistent situation of summation of the output figure place of the sum of Y electrode and a plurality of scanner driver IC, make the part output of this IC be in unused state.About such prior art example, record to some extent in TOHKEMY 2002-304151 communique (patent documentation 1).In addition, as being associated with it and similarly constituting example, also exist the redundance of PDP number of electrodes with the difference of total IC output figure place, the formation of IC of separately distributing to topmost and foot in the device configuration is routine.

Patent documentation 1: TOHKEMY 2002-304151 communique

Summary of the invention

Under the situation of the circuit actual installation structure of the driver of the scanner driver in above-mentioned existing PDP device etc.; In general device configuration; In a plurality of IC (driver IC), the IC side of first (at first) is positioned at the upside of PDP device (high side), and last IC side is positioned at downside (downside).IC is corresponding with power consumption to generate heat in order to make, and needs to consider the device design of its temperature and heat release.About the main cause of the temperature of IC, except the self-heating of IC, there are the influence of adjacent IC, the influence that the temperature in the PDP device rises etc.The IC of downside causes that mainly due to the self-heating of this IC itself temperature rises, but the IC of upside, receives influence, the influence of general upside increase in temperature in the PDP device of heating of the adjacent IC of downside, aspect temperature, is in severe state.

In the general structure of above-mentioned scanner driver, among a plurality of IC, in upside IC group, particularly, receive influence the most easily about said temperature from going up most the IC of several second position, the temperature that among all IC, becomes is the highest.For example in the prior art example of Figure 11; Compare the IC (#1) of first (upper) with second IC (#2); Owing to there be not an IC adjacent with its upside, be merely from downside from the influence of the heating of adjacent IC, aspect temperature and second IC (#2) more favourable.Therefore, second IC (#2) temperature becomes the highest.Like this, the general structure of the driver of existing P DP device particularly in the such prior art example of Figure 11, exists in the situation that aspect of performance such as temperature is not really expected effect.

In addition, be equipped with equal IC aspect electric, but particularly because second IC (#2) temperature becomes the highest as each IC in the above-mentioned driver, need be with respect to the scanner driver countermeasure that is used for heat release of additional heat liberation board etc. especially.

The present invention accomplishes in view of the above problems; Its purpose is to provide the circuit mounting structure of driver of (Y electrode drive portions) such as scanner drivers in a kind of and the PDP device relevant; Particularly comprising from the zone of the IC that goes up most several second position in substrate and a plurality of IC configuration structure, can guarantee or improve the performance of power consumption and temperature.

In the invention that the application disclosed,, then be described below if the summary of representative part is carried out simple declaration.In order to achieve the above object, the present invention is the technology that possesses the PDP device of the circuit part of PDP and its driving and control usefulness, it is characterized in that possessing the technical means shown in following.

(1) in PDP device of the present invention; In the circuit mounting structure of the Y electrode drive portion of scanner driver etc.; At least during being disposed at from topmost several second scanner driver IC (second IC), adopt the structure that is not to use the whole of its carry-out bit but only uses a part (being connected) with the terminal of Y electrode.Thus, can reduce each power consumption of IC, realize comprising the reduction of temperature in the zone of this IC of second.

(2) in addition, be divided at scanner driver under the situation of a plurality of substrates of being equipped with a plurality of IC (two substrates at least up and down), the substrate of upside is bigger than the substrate of downside, and promptly the mode with the increases such as area of every IC constitutes.Or be that the installation interval that employing will be equipped on the IC of substrate makes the substrate structure wideer than the substrate of downside of upside.Thus, realize comprising the reduction of temperature in the zone of the 2nd IC.

This PDP device for example is following structure.PDP possesses the Y electrode group that is used for turntable driving at least.The PDP device possesses and has first circuit (Y electrode drive portion) of the function of turntable driving Y electrode group respectively.PDP for example possesses first electrode (Y electrode) group of the effect that has scanning and keep in front the substrate.In addition, in front or on any one of the substrate at the back side, possesses second electrode (X electrode) group with the effect of keeping.Further, in front or on any one of the substrate at the back side, also can possess third electrode (address electrode) group, perhaps also can not possess with address effect.First circuit (Y electrode drive portion) for example possesses the scan drive circuit (scanner driver) that is used to keep the Y driving circuit (Y keeps driver) of common driving Y electrode groups such as driving and is used for difference turntable driving Y electrode group.

Scanner driver applies scanning impulse to each first electrode, and Y electrode group is applied scanning impulse successively.Scanner driver constitutes by carrying a plurality of more than one substrates (IC substrate) with IC (SIC (semiconductor integrated circuit) element/IC chip) of a plurality of outputs (lead-out terminal).The use output of IC is connected with Y electrode (its terminal).And among a plurality of IC of substrate, in the IC (first kind IC) of a part (at least more than one), the part output among a plurality of outputs of this IC is not connected with Y electrode group (its terminal), is in unused state.Have this IC of first kind that does not use output and be configured in second the position from the upper in the device configuration structure.

In the disclosed invention of the present invention, if the effect that is obtained by representational part is carried out simple declaration then be described below.According to the present invention,,, also can guarantee or improve the performance of power consumption and temperature even in the zone of the IC that particularly comprises from the upper second position in the configuration structure of substrate and a plurality of IC about the scanner driver of PDP device.

Description of drawings

Fig. 1 is the figure of schematic configuration of the integral body of the PDP device of expression in the embodiment of the present invention.

Fig. 2 is the figure of electrode structure of the PDP in the PDP device of an expression embodiment of the present invention.

Fig. 3 is the figure of basic structure of the Y electrode drive portion that comprises scanner driver in the PDP device of an expression embodiment of the present invention.

Fig. 4 is the figure that circuit mounting structure and the IC of the scanner driver in the PDP device of expression embodiment 1 of the present invention exports the structure of distribution.

Fig. 5 is the figure of structure of action of the turntable driving of the scanner driver in the PDP device of expression embodiment 1 of the present invention.

Fig. 6 is the figure that circuit mounting structure and the IC of the scanner driver in the PDP device of expression embodiment 2 of the present invention exports the structure of distribution.

Fig. 7 is the figure that circuit mounting structure and the IC of the scanner driver in the PDP device of expression embodiment 3 of the present invention exports the structure of distribution.

Fig. 8 is the figure of structure of action of the turntable driving of the scanner driver in the PDP device of expression embodiment 3 of the present invention.

Fig. 9 is the figure of circuit mounting structure of the scanner driver in the PDP device of expression embodiment 4 of the present invention.

Figure 10 is the figure of circuit mounting structure of the scanner driver in the PDP device of expression embodiment 5 of the present invention.

Figure 11 is the circuit mounting structure of the scanner driver in the routine PDP device of expression prior art and the figure that IC exports the structure of distribution.

Embodiment

Below, based on accompanying drawing embodiment of the present invention is elaborated.In addition, the institute's drawings attached being used for explaining embodiment to marking prosign in principle with a part, omits its repeat specification.In addition, Figure 11 is in order to be easier to understand explanation and expression prior art example with ratio of the present invention.

(PDP device)

At first, in Fig. 1, Fig. 2, the basic structure of the PDP device of this embodiment is described.

In Fig. 1, this PDP device (PDP module) 100 has PDP10, keeps the chassis 190 of PDP10 and forming circuit portion etc.Mainly have as circuit part: comprise the X driving circuit (X keeps driver) 111 that drives X electrode (keeping electrode) 11; Drive Y driving circuit (Y keeps driver) 121 and the scan drive circuit (scanner driver) 122 of Y electrode (keeping scan electrode) 12, drive each driving circuit of the address driving circuit (address driver) of address electrode 13; Control the control circuit 191 of each driving circuit etc.; And to power circuit 192 of each circuit supply power etc.

In Fig. 2; PDP10 has in the discharge space of the tectosome clamping of former and later two glass substrates that are formed with electrode group (11,12,13) (front panel 1 with backplate 2), is full of the mixed gas such as Ne or Xe of discharge usefulness and the structure that utilizes sealing 3 to seal.In this structure, through discharging, utilize the ultraviolet ray that takes place by discharge, thereby make the fluorophor excitation that on substrate, forms, the luminous demonstration to the voltage that applies between electrode more than the discharge ionization voltage.

PDP10 mainly has X electrode (keeping electrode) 11, Y electrode (keeping scan electrode) 12 and address electrode 13 in three electrode structures.Group by X electrode that extends to first (horizontal stroke) direction 11 and Y electrode 12 constitutes row, further, and the regional corresponding formation display unit that intersects with address electrode 13 and cut apart with next door 14 to the extension of second (indulge) direction.The structure of PDP10 exists multiple corresponding to type of drive.

A plurality of Y electrode 12{Y1～Yn} are kept driving by Y driving circuit 121, by scan drive circuit 122 turntable driving.The quantity of Y electrode 12 (n) for example is 480 lines, 512 lines etc.

(Y electrode drive portion)

In Fig. 3, expression is as the structure of the Y electrode drive portion 120 of the prerequisite technology of substrate.This Y electrode drive portion 120 has the function that a plurality of Y electrodes 12 of PDP10 is applied scanning impulse (turntable driving waveform) respectively.Y electrode drive portion 120 is by formations such as Y driving circuit (Y keeps driver) 121 and scan drive circuits (scanner driver) 122.

Y driving circuit 121 is created on the reset pulse of keeping pulse and applying at reseting period that applies during the keeping in son the drive controlling etc., with respect to the pulse that all Y electrodes 12 commonly apply, and via scanner driver 122, is applied to Y electrode 12.

On the other hand, scanner driver 122, the scanning motion during the address as in the son drive controlling applies scanning impulse to each Y electrode 12.Number (n) part corresponding electrical circuits of the Y electrode 12 of scanner driver 122 existence and PDP10.

Usually, scanner driver 122, integrated with the unit of 64 outputs etc., constitute by a plurality of IC on the substrate 20 (scanner driver IC) 30.Therefore, for example under the situation of the PDP10 with 512 Y electrodes 12, in scanner driver 122, add up to the IC30 (64 * 8=512) that uses 8 64 outputs.Each IC30 is function and a load equal on electricity.

From the output of the IC30 of this scanner driver 122 connecting portion, be electrically connected with the Y electrode 12 (particularly its terminal 40) of PDP10 through EPCB (flexible printed wiring board/flexible cable) 123 grades.The mode curved configuration that FPCB123 spreads with the terminal 40 to the PDP10 side.

In addition, inferior in the situation of the PDP device of the big picture of 40 types～60 types, generally scanner driver 122 and its IC30 component are installed for two substrates (scanner driver substrate) 20 up and down.In Fig. 3, scanner driver 122 constitutes the second substrate 20-2 that is divided into upside first substrate 20-1 and downside.In addition, so-called here being meant up and down about longitudinal direction under the state of the common arranged perpendicular of picture of PDP device 100 and PDP10.In the past, under the situation that scanner driver 122 is made up of two substrates 20, generally adopted laterally zygomorphic design (identical up and down structure).For example, in Fig. 3, each substrate 20-1 up and down, 20-2 carry 4 identical IC20 respectively.In the scanner driver 122 of this embodiment,, become asymmetrical structure up and down owing to make the structure of upside substrate 20-1.

(prior art example)

Then, in order to compare, to describing with scanner driver 122 relevant prior art examples.In Figure 11, as the formation example of existing scanner driver 122, the structure of special expression output distribution (being connected of the terminal 40 of the IC30 of scanner driver 122 and PDP10 side).For example represent PDP10, the circuit structure when using the IC30 of 8 (IC (#8) of first IC (#1)～the 8th) for example 64 outputs for the terminal (panel terminal is represented with Y) 40 of Y electrode 12 with 480 lines.This formation example is in a plurality of IC30, uses the output (first output～the, 32 outputs) of a part of the IC30 (IC#1) of (disconnected) topmost, realizes the example of the reduction of power consumption and temperature.

As the output (lead-out terminal) of IC30,8 IC30 of existence add up to 512 (64 * 8=512).These 512 outputs are with respect to 32 parts of terminal 40 residues of the Y electrode 12 of 480 lines.About 32 of residue part of the difference of the carry-out bit sum of the quantity of the terminal 40 of this Y electrode 12 and all IC30; 32 parts of position foremost from first IC (#1) 30 of upper in the device configuration (first output～the, 32 outputs) are not connected with the terminal 40 of Y electrode 12, since the 33 connection.That is the terminal 40 (Y1～Y32) be connected of later half 32 of first IC (#1) 30 output, (the 33 output～the 64 outputs) and first of Y electrode 12～32.64 outputs of each IC30 that second IC (#2) 30 is later successively with the 33 of Y electrode 12 the later terminal 40 (Y30～Y480) be connected.

According to above-mentioned formation, reduce power consumption with first the IC (#1) 30 that does not use output, the temperature of the IC30 (IC#1) of the upper side position in the implement device configuration reduces.Disclose to some extent in above-mentioned patent documentation 1 for such technology.In addition; At Y electrode 12 is under the situation of 480 lines; Also exist remaining 32 parts that the quantity of terminal 40 and all IC30 are output as the difference of sum to be divided into the topmost and the IC (for example IC#1 and IC#8) of foot in the device configuration, it is routine to make the formation that the output of 16 parts is not connected with terminal 40 respectively.

(embodiment 1)

Then embodiment 1 of the present invention is described with reference to Fig. 4～Fig. 5.In the PDP of embodiment 1 device 100, reduce as the center to be disposed at from the output quantity of using of last several second IC30 (IC#2), realize the reduction of power consumption and temperature.

In Fig. 4, the structure of the scanner driver 122 of embodiment 1 is described.This scanner driver 122 is two substrate 20-1,20-2 up and down respectively.On the first substrate 20-1 of upside, be equipped with 5 IC30 (IC#1～IC#5).On the other hand, on the downside second substrate 20-2, be equipped with 4 IC30 (IC#6～IC#9).These IC30 have 64 outputs, and are identical on electricity.The Y electrode 12 of another PDP10 is 512 lines, has the terminal 40 (Y1～Y512) of respective amount.The output of IC30 (lead-out terminal is represented with O#) is to the terminal 40 of the Y of PDP10 side electrode 12, through FPCB 123 connections such as grade.

In addition, as Din (data input), be input from the data of Y driving circuit 121 to the input of first IC (#1) 30.These data are to be used to determine from scanner driver 122 to data of the timing of the output of the scanning impulse of Y electrode 12 etc.A plurality of IC30 are connected in series through the line of data output, make the final data output of the IC30 that wins become the output input of second IC30.

The one IC#1 of the upper among the first substrate 20-1 and from second IC#2 of last several second places in 64 outputs, uses half the 32 (being connected with terminal 40) respectively.Other IC (#3～#9) 30 use complete 64 outputs.First IC (#1) 30; First output (O#1)～32 output (O#32) as 32 parts of the first half is not connected with the terminal 40 of Y electrode 12, exports the terminal 40 (Y1～Y32) be connected of (O#64) and first～32 as the 33 output (O#33)～the 64 of 32 half the parts of back.Second IC (#2) 30; First output (O#1)～32 output (O#32) as 32 parts of the first half likewise is not connected with the terminal 40 of Y electrode 12, exports the terminal 40 (Y33～Y64) be connected of (O#64) and the 33～the 64 as the 33 output (O#33)～the 64 of 32 half the parts of back.The later output of the 3rd IC (#3) 30 successively with the 65 later terminal 40 (Y65～Y512) be connected.

In the configuration up and down of a plurality of IC30, consider second IC (#2) 30, then its adjacent IC (#1, #3) 30 becomes severe aspect hot.Therefore, in embodiment 1, at first, second IC (#2) 30 (uses among the O#1～O#64) that half the (O#1～O#32) uses half the (O#33～O#64) in full output.Meanwhile, in adjacent first IC (#1) 30, use the half the (O#33～O#64) of output.

According to same consideration,, also can be employed in and use full output (to use the such structure of output of half among the #1～O#64), the IC second (#2) 30 and the 3rd IC (#3) respectively among first the IC (#1) 30 as other embodiment.

In the waveform of Fig. 5, the action of the circuit of the scanner driver 122 of embodiment 1 is described.From last, the waveform 61 of " IC#1-Din " is the data inputs (Din) of first IC (#1) 30.The waveform 62 of " IC#1-Dout, IC#2-Din " is the final data output of first IC (#1) 30, is the data input of second IC (#2) 30 then simultaneously." CLK " is the control clock.The waveform that " y1 "～" y64 " imports to the terminal 40 of Y electrode 12 from the outgoing side of IC30 is respectively to each terminal 40 input scan pulse 60 successively.In addition, represent in the above IC#1 output (O#) 1 ..., 64} and with IC#2 output (O#) 1 ..., 64} corresponding relation.

For to as from PDP10 from first the Y1 electrode output scanning pulse 60 of Y electrode 12 of last number; At first; As the output of not using 32 parts foremost of output of first IC (#1) 30 (among the O#1～O#32); Such shown in data idle period t, idle running data (data of Din), the scanning impulse 60 that the 33 back half the output (O#33) the output Y1 electrode of the IC from first (#1) is used.Thus, successively to applying scanning impulse 60 from Y1 electrode to Y32 electrode.Then in second IC (#2) 30 too, do not use the first half 32 parts (O#1～O#32), during after the idle running of t data, the 33 the output (O#33) of the IC#2 from second is exported from the scanning impulse 60 of Y33 electrode to the Y64 electrode successively.

According to embodiment 1; Particularly as aspect existing temperature, become the severeest from have second the IC (#2) 30 of IC of several second position and do not use output; Adopt this structure; Because the reduction of the power consumption of second IC (#2) 30 is so can reduce the temperature of these IC of second (#2), 30 near zones.Therefore, the balance of the Temperature Distribution among a plurality of IC30 is become well, even be made as the performance that temperature also can guaranteed or improve to the structure of not appending heat liberation board.

(embodiment 2)

Then, with reference to Fig. 6 embodiment 2 of the present invention is described.In embodiment 2, be employed in equally to have among the IC (#1) 30 of second IC (#2) 30 and first with embodiment 1 and do not use output and the structure of subduing the data idle period (t) in the driving.

In Fig. 6, the scanner driver in the embodiment 2 122 is described.In the structure of embodiment 2, among IC first (#1) 30 and second the IC (#2) 30, (aspect the having or not of the use (with being connected of terminal 40) of O#1～O#64), be the structure of opposite (repeatedly not sharing) in its output group.That is, and the use of first IC (#1) 30 output (O#1～O#32) in second IC (#2) 30, be not use output, on the contrary, the not use of first IC (#1) output (O#33～O#64) in second IC (#2) 30, export for using.And, in this case, among IC first (#1) 30 and second the IC (#2) 30, adopt the identical data of (homophase) input structure that action does of going forward side by side simultaneously as Din.According to said structure, apply a plurality of scanning impulses continuously, do not need the data idle period (t) of that kind shown in Figure 5, can shorten driving time.

(embodiment 3)

Then, with reference to Fig. 7, Fig. 8 embodiment 3 of the present invention is described.In embodiment 3, be employed in equally to have among second the IC (#2) 30 with embodiment 1 and do not use output, and the structure of subduing the data idle period (t) in the driving.

In Fig. 7, the scanner driver in the embodiment 3 122 is described.In the structure of embodiment 3, be purpose to subdue the data idle period (t) that under the situation of embodiment 1, takes place, at the leading portion of the outside of IC30, particularly data input part, shift register 80 is set.As shift register 80, in IC30, be provided with and the same shift register of built-in shift register, 32 bit shift register are set in this example.The output of not using of second IC (#2) 30 is 32 of the first half (O#1～O#32).The full output of first IC (#1), 30 uses in addition, (O#1～O#64).32 the back half the use output of second IC (#2) 30 (terminal 40 (Y65～Y96) be connected of O#33～O#64) and the 65th of Y electrode 12～96th.

As the structure of IC30, built-in shift register in IC30 (for example 64 bit shift register are more than 1) is well-known technology.In after the IC second (#2) 30, (final data output: Dout) (data are imported: Din) be connected with the series connection input of the built-in shift register of the IC30 of the next position in the series connection of the built-in shift register of each IC30 output.Intactly import the data input part of first IC (#1) 30 from the data of Y driving circuit 121 inputs (Din), carry out 32 for being input to the data input part of second IC (#2) after the displacement through 80 couples of Din of shift register.

In Fig. 8, the action of the circuit of the scanner driver 122 of embodiment 3 is described.The waveform 71 of " IC#1-Din " and embodiment 1 are the data inputs (Din) of first IC (#1) 30 equally.The waveform 72 of " SRout, IC#2-Din " is to carry out the output behind 32 bit shifts through the data of 80 couples of Din of shift register, and is the data input of second IC (#2) 30." y1 "～" y96 " from the outgoing side of above-mentioned same IC30 waveform to terminal 40 inputs of Y electrode 12, respectively to each terminal 40 input scan pulse 60 successively.In addition, represent in the above IC#1 output (O#) 1 ..., 64} and with IC#2 output (O#) 33 ..., 64} corresponding relation.

Under the situation of the structure of above-mentioned Fig. 7, in 64 outputs that the IC first (#1) 30 takes on, in the timing of the end of output of the scanning impulse 60 of 32 outputs of the first half part, the IC to second (#2) 30 inputs are from the output (SRout) of shift register 80.That is, will in second IC (#2) 30, untapped 32 parts be shifted, make the input delay of the IC (#2) to second through shift register 80.Thus, according to shown in Figure 8, IC first (#1) 30 and second IC (#2) to 40 groups of continuous output scanning pulses 60 of terminal of Y electrode 12, can subdue the time of waste by above-mentioned data idle running between 30.

(embodiment 4)

Then, in Fig. 9, the structure of the scanner driver 122 of embodiment 4 of the present invention is described.In embodiment 4, different with embodiment 1, the use of the output of a plurality of IC30/ use is made as same, heat-treat through the size that changes substrate 20 up and down.In embodiment 4, be in the substrate 20 that separately constitutes up and down, the size of the substrate 20-1 of upside is made as the example bigger than the substrate 20-2 of downside.

Aforesaid substrate 20-1,20-2 for example carry 4 equal IC30, with the syndeton of terminal 40 sides be up and down same.And the length (L1) of the longitudinal direction of the substrate 20-1 of upside is designed to bigger than the length (L2) of the substrate 20-2 of downside, and the top of the IC first (#1) is gapped.Thus, in the substrate 20-1 of upside, compare, become favourable from heat release of IC30 etc. with the substrate 20-2 of downside.

According to embodiment 4, in the IC30 of the substrate 20-1 of the upside that comprises second IC (#2) 30, can reduce temperature with comparing in the past, even make the performance that temperature also can fully guaranteed and improve to the structure of not appending heat liberation board.

(embodiment 5)

Then, in Figure 10, the structure of the scanner driver 122 of embodiment 5 of the present invention is described.In embodiment 5, identical with embodiment 4, different with embodiment 1 etc., the use of the output of a plurality of IC30/ use is made as same, heat-treat through the configuration that changes the IC30 in the substrate 20 up and down.In embodiment 5, be that substrate (d1) with each IC30 of the substrate 20-1 that is disposed at upside makes than the wide formation example in interval (d2) at each IC30 of the substrate 20-2 of downside.Thus, in the substrate 20-1 of upside, compare, become favourable, can access the effect same with embodiment 4 from heat release of IC30 etc. with the substrate 20-2 of downside.

In addition, for the reduction of the temperature of the IC30 that more effectively implements scanner driver 122, also can adopt the structure that embodiment 1～3 and

embodiment

4 or 5 are combined.

The structure of each above embodiment is need not append other cartridge element such as heat liberation board just can realize the structure that temperature reduces, but also can be the structure that makes up.

More than, bright specifically based on embodiment to having been undertaken by the invention of inventor's completion, but the present invention is not limited to above-mentioned embodiment, in the scope that does not break away from its main idea, can carry out various changes, and this is self-evident.

Utilize possibility on the industry

The present invention can be used in the display device of the circuit of the driver that possesses the IC substrate.

Claims

1. a plasm display device is characterized in that, comprising:

The plasma display that possesses the first electrode group that is used for turntable driving; With

Drive first circuit of the said first electrode group, wherein,

Said first circuit possesses the scanner driver that the said first electrode group is applied individually scanning impulse,

Said scanner driver possesses: carry at least two substrates IC that terminal a plurality of and the said first electrode group is connected, upside and downside with a plurality of lead-out terminals,

In said at least two substrates, the substrate of said upside is bigger than the substrate of said downside.

2. a plasm display device is characterized in that, comprising:

Drive first circuit of the said first electrode group, wherein

In said at least two substrates, the substrate of said upside is compared with the substrate of said downside, and the interval that said IC is installed is wide.