CN103091877B - Antistatic LCD graphical design method - Google Patents

Abstract

The present invention relates to the Graphic Exchanging of a kind of LCD of utilization and equipotential structural design to resist the method for extraneous static interference.It is characterized in that, for equipotential region can be formed by the conductive gold spacer in frame, anter glass substrate electrode layer copies the contact conductor identical with tergite glass substrate electrode layer, and form equipotential by the conductive gold spacer conducting in frame; Meanwhile, tergite glass substrate electrode layer also copies the lead-in wire identical with anter glass substrate electrode layer, and form equipotential by the conductive gold spacer conducting in frame; For equipotential region can not be formed by conductive gold spacer, the contact conductor in this region is arranged on anter glass substrate electrode layer correspondence position and connects outer electrode.Antistatic effect of the present invention is good, avoids disorderly phenomenon that is aobvious or that do not disappear for a long time after disorderly showing.

Description

Antistatic LCD graphical design method

Technical field

The present invention relates to the Graphic Exchanging of a kind of LCD of utilization and equipotential structural design to resist the technology of extraneous static interference.

Background technology

Liquid crystal indicator (Liquid Crystal Display, be called for short LCD), because it has slim body, little power consumption, the advantage such as radiationless, is widely used in TV, notebook computer, mobile phone, vehicle-carrying display screen.Electrostatic problem is a wide gap being difficult to go beyond of LCD quality and the process of manufacturing always, the electrostatic that production run produces can puncture ITO cabling, cause scrapping of product function, the electrostatic in use procedure can cause the unnecessary display of LCD, and does not disappear for a long time.We often can find in winter; LCD surface was touched with hand; whole LCD screen disorderly shows a slice; cross and could recover normal for a long time; this is all that electrostatic affects LCD, although present IC, the driving circuits such as pcb board have all taken into full account the antistatic effect of product; but for the product that the quality requirements such as vehicle-mounted LCD are higher, need a kind of technology resisting extraneous static interference of simple reliable technology.

Summary of the invention

The object of this invention is to provide a kind of antistatic LCD graphical design method, the method resists extraneous static interference by frame transfer, equipotential and Graphic Exchanging, technically reliable, antistatic effect is good, avoids disorderly phenomenon that is aobvious or that do not disappear for a long time after disorderly showing.

For achieving the above object, the present invention is achieved through the following technical solutions:

Antistatic LCD graphical design method, LCD liquid crystal cell comprises anter glass substrate, anter glass substrate electrode layer, liquid crystal, tergite glass substrate electrode layer, tergite glass substrate, frame, anter SEG electrode is positioned on anter glass substrate electrode layer, and anter SEG electrode connects outer electrode; Tergite COM electrode is positioned on tergite glass substrate electrode layer, is provided with the gold goal that can make the conducting of upper/lower electrode layer in frame; Anter glass substrate electrode layer is connected with driving circuit or power supply by wire, and the contact conductor of tergite glass substrate electrode layer is transformed on anter glass substrate electrode layer by the conductive gold spacer in frame and silver point and is connected with external power source, it is characterized in that,

For being formed equipotential region by the conductive gold spacer in frame, anter glass substrate electrode layer copies the contact conductor identical with tergite glass substrate electrode layer, and makes the contact conductor that copies at front glass substrate electrode layer and the original contact conductor conducting of tergite glass substrate electrode layer form equipotential by the conductive gold spacer in frame; Simultaneously, tergite glass substrate electrode layer also copies the lead-in wire identical with anter glass substrate electrode layer, and makes original lead-in wire conducting on the lead-in wire that copies at tergite glass substrate electrode layer and anter glass substrate electrode layer form equipotential by the conductive gold spacer in frame;

For equipotential region can not be formed by conductive gold spacer, the contact conductor in this region is arranged on anter glass substrate electrode layer correspondence position and connects outer electrode.

Compared with prior art, the invention has the beneficial effects as follows:

This technology is resisted extraneous static by frame transfer, equipotential and Graphic Exchanging and is disturbed, technically reliable, and antistatic effect is good, avoids the disorderly aobvious or random aobvious rear phenomenon do not disappeared for a long time.

Accompanying drawing explanation

Fig. 1 is the structural representation of LCD liquid crystal cell.

Fig. 2 is that extraneous static acts on liquid crystal cell different parts schematic diagram.

Fig. 3 is LCD anter SEG electrode, tergite COM electrode, frame before electrode conversion, conductive gold spacer structural representation.

Fig. 4 directly can carry out equipotential region and can not carry out equipotential area schematic.

Fig. 5-1 is after equipotential, the electrode structure schematic diagram (step direction refers to outer electrode direction) in step direction.

Fig. 5-2 is after equipotential, the electrode structure schematic diagram in non-step direction.

Fig. 6 is anter SEG electrode, tergite COM electrode schematic diagram after electrode conversion.

Embodiment

The specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing.

See Fig. 1, LCD liquid crystal cell comprises anter glass substrate 1, anter glass substrate electrode layer, liquid crystal 3, tergite glass substrate electrode layer, tergite glass substrate 5, frame 7, anter SEG electrode 2 is positioned on anter glass substrate electrode layer, and anter SEG electrode 2 connects outer electrode 6; Tergite COM electrode 4 is positioned on tergite glass substrate electrode layer, is provided with the gold goal 8 that can make the conducting of upper/lower electrode layer in frame 7.

Extraneous static interference essentially, it is the high pressure being applied with certain energy on the LCD surface with extraneous contact, cause on LCD liquid crystal cell and form very high electric potential difference between bottom crown, and far away higher than the threshold voltage of liquid crystal molecule upset, thus cause unnecessary display, when voltage height to a certain extent time, destroy the original arrangement mode of liquid crystal molecule, make LCD be in display state for a long time and not disappear.

Do not produce unnecessary display when wanting to realize extraneous static interference, mainly contain the way of two aspects: 1, made by certain mode electric potential difference between the upper and lower two-plate in region that should not show be zero or be less than threshold voltage.2, the electrostatic produced with electrostatic contact face is conducted fast by conductor.

For the electrode layer of anter glass substrate, tergite glass substrate, contact conductor can be copied at two electrode layers and form equipotential region (this region is generally non-graphic viewing area), namely copy contact conductor at upper and lower two electrode layers, and form the next anlistatig generation of equipotential mode by the conductive gold spacer in frame and firing point.For equipotential filling electrode can not be formed, be displaced to other a slice electrode layer by graphic conversion technology, and this filling electrode is become outer electrode.

The present invention's antistatic LCD graphic designs technology, resists extraneous static interference by frame transfer, equipotential and Graphic Exchanging.Described frame transfer refers to the method utilizing in frame adhesive and mix conductive gold spacer, makes liquid crystal cell frame have the function realizing fluctuating plate electrode conduction.Described equipotential refers to after mutually copying contact conductor in inherent for liquid crystal cell anter glass substrate electrode layer, tergite glass substrate electrode layer, by the conductive gold spacer in frame and firing point conducting, reaches equipotential.Described Graphic Exchanging refers to can not equipotential contact conductor flexible conversion between anter glass substrate electrode layer, tergite glass substrate electrode layer by figure region, finally makes the electrode in equipotential region to be arranged in the electrode layer connecing outer electrode 6.

Specific embodiments of the invention are described in detail below in conjunction with accompanying drawing.

1, frame transfer: participate in conductive gold spacer by proportioning in frame adhesive, the mass ratio of frame adhesive and conductive gold spacer designs for 250:4, and explained hereafter is processed routinely.

2, COM electrode equipotential design: as shown in Figure 1, Figure 2, Figure 3 shows, tergite COM electrode 4 is arranged on tergite glass substrate electrode layer, and anter SEG electrode 2 is arranged on anter glass substrate electrode layer, connects outer electrode 6.

Before not adopting the technology of the present invention, for COM contact conductor, because it is on the tergite glass substrate 5 of LCD liquid crystal cell, it is liquid crystal 3 on it, liquid crystal 3 is anter glass substrate 1 above, when plus high-pressure produces, isolated upper surface electrode electrification in high voltage and can not conducting in time going out, and then form very large electric potential difference (several kilovolts) with lower surface COM electrode, high pressure is applied directly on liquid crystal molecule, liquid crystal molecule, owing to being applied in high voltage, is distorted, and can not return to normal for a long time.

For this reason for COM electrode, the measure that the present invention takes is: the filling electrode that design is onesize with the same shape of tergite COM electrode 4 being positioned at tergite glass substrate electrode layer on the electrode layer of anter glass substrate 1, and one end that this fills electrode is guided in frame 7, this two contact conductor conductings are made by the conductive gold spacer 8 in frame, like this when electrostatic contact copies contact conductor to the COM in LCD upper surface anter glass substrate 1 electrode layer, because this contact conductor is also connected with the COM contact conductor of tergite glass substrate 5 electrode layer simultaneously, current potential is equal, electromotive force is zero, therefore we apply the liquid crystal molecule torsion that great voltage all can not make this change place, also unnecessary display would not be caused.

2, SEG electrode equipotential design: see Fig. 1, Fig. 2, Fig. 3, anter SEG electrode 2 contact conductor is positioned on the electrode layer of LCD box anter glass substrate 1 lower surface, SEG contact conductor is connected with PCB, the friendship that PCB produces frequently signal is applied directly on anter SEG electrode 2, when extraneous instantaneous high pressure touches LCD surface, the friendship signal frequently of anter SEG electrode 2 itself, electrostatic high-pressure is neutralized or directly derives, therefore extraneous high pressure can not be applied on liquid crystal molecule, and liquid crystal can not be distorted distortion.Therefore SEG electrode does not do equipotential design, also can not cause the distortion of liquid crystal.But consider that not adding filling contact conductor can produce remaining shadow, in order to keep the consistance of integral product appearance color, the present invention also adds same filling contact conductor at the electrode layer of the corresponding tergite glass substrate 5 of the SEG contact conductor of anter glass substrate 1, and the one end that gone between by the SEG copied in tergite electrode of substrate layer 5 is guided in frame 7, forms equipotential with the SEG contact conductor of anter glass substrate 1.

3, SEG-COM Graphic Exchanging: in the diagram, B region can realize equipotential, but wherein a-quadrant cannot be guided in frame and carry out equipotential, and this place's cabling is all COM contact conductor, be in the lower surface of liquid crystal layer, directly contact liquid crystal during electrostatic contact and cause and show more, the present invention is directed to a-quadrant by SEG-COM contact conductor at anter glass substrate for this reason, COM electrode is adjusted to the electrode layer of anter glass substrate 1 by the mode that the electrode layer of tergite glass substrate is exchanged mutually, in such Fig. 4, the contact conductor of a-quadrant is arranged in anter glass substrate electrode layer, direct connection driving circuit, the protection to Formation of liquid crystals, thus fundamentally solve the unnecessary display that electrostatic interference brings, as Fig. 3, shown in Fig. 6.

Claims (1)

1. antistatic LCD graphical design method, LCD liquid crystal cell comprises anter glass substrate, anter glass substrate electrode layer, liquid crystal, tergite glass substrate electrode layer, tergite glass substrate, frame, anter SEG electrode is positioned on anter glass substrate electrode layer, and anter SEG electrode connects outer electrode; Tergite COM electrode is positioned on tergite glass substrate electrode layer, is provided with the gold goal that can make the conducting of upper/lower electrode layer in frame; Anter glass substrate electrode layer is connected with driving circuit or power supply by wire, and the contact conductor of tergite glass substrate electrode layer is transformed on anter glass substrate electrode layer by the conductive gold spacer in frame and silver point and is connected with external power source, it is characterized in that,

For being formed equipotential region by the conductive gold spacer in frame, anter glass substrate electrode layer copies the contact conductor identical with tergite glass substrate electrode layer, and makes the contact conductor that copies at front glass substrate electrode layer and the original contact conductor conducting of tergite glass substrate electrode layer form equipotential by the conductive gold spacer in frame; Simultaneously, tergite glass substrate electrode layer also copies the lead-in wire identical with anter glass substrate electrode layer, and makes original lead-in wire conducting on the lead-in wire that copies at tergite glass substrate electrode layer and anter glass substrate electrode layer form equipotential by the conductive gold spacer in frame;

For equipotential region can not be formed by conductive gold spacer, the contact conductor in this region is arranged on anter glass substrate electrode layer correspondence position and connects outer electrode.