CN101122693A

CN101122693A - Planar display panel and planar display device

Info

Publication number: CN101122693A
Application number: CNA2006101042469A
Authority: CN
Inventors: 萨文志
Original assignee: Qimeng Science & Technology Co Ltd
Current assignee: Qimeng Science & Technology Co Ltd
Priority date: 2006-08-07
Filing date: 2006-08-07
Publication date: 2008-02-13

Abstract

The invention relates to a plane display panel and a plane display device. The plane display device is provided with a backlight module and a plane display panel; wherein, the plane display panel includes a pixel array circuit board and a first glass circuit board. The pixel array circuit board is provided with a pixel array; the first glass circuit board is provided with a first collective drive loop; wherein, the first collective drive loop is electrically connected with the pixel array. The invention makes use of the mutual electrical connection between the glass circuit board with collective drive loop and the pixel array circuit board and the collective drive loop is directly arranged on the glass circuit board, thus avoiding the thermal stress problem because of different thermal expansion coefficient.

Description

Two-d display panel and flat display apparatus

Technical field

The invention relates to a kind of display panel and display device, especially in regard to a kind of two-d display panel and flat display apparatus.

Background technology

Along with the rise of the demand and the environmental protection notion of high image quality, flat display apparatus has replaced cathode-ray tube (CRT) (Cathode ray tube, CRT) display device gradually.

Please refer to shown in Figure 1ly, is existing known a kind of flat display apparatus, liquid crystal indicator for example, and it is to have a display panels 1.Display panels 1 generally is to comprise that a pixel array 11, one scan line drive loop 12 and a data line drives loop 13.Pixel array 11 is to have a glass substrate G ₀₁And a plurality ofly be arranged at glass substrate G with amorphous silicon technology ₀₁On membrane transistor TFT ₀₁Scanning line driving loop 12 is and membrane transistor TFT ₀₁Gate electrically connect; Data line drives loop 13 ₀₁Source electrode electrically connect, with control by membrane transistor TFT ₀₁The transmittance of the picture element of being responsible for cooperates the collocation of red green blue tricolor again, to constitute an image frame.Wherein, scanning line driving loop 12 and data line driving loop 13 are that (chip on film COF) makes with the soft board technology.

Please refer to shown in Figure 2, be existing known another kind of display panels 2 be have a pixel array 21, the one scan line drives loop 22 and a data line drives loop 23.Pixel array 21 is to have a glass substrate G ₀₂And a plurality ofly be arranged at glass substrate G with amorphous silicon technology ₀₂On membrane transistor TFT ₀₂Scanning line driving loop 22 is that (chip on glass, COG) fabrication techniques is in the glass substrate G of pixel array 21 with the glass flip chip encapsulation ₀₂On, and scanning line driving loop 22 is and membrane transistor TFT ₀₂Gate electrically connect; It is to make with the soft board technology that data line drives loop 23, and data line driving loop 23 is and membrane transistor TFT ₀₂Source electrode electrically connect.

Yet the scanning line driving loop 22 of wafer (chip) form is to be arranged on the silicon substrate owing to drive the loop, and the thermal expansivity of silicon substrate (Coefficient of Thermal Expansion is to differ from glass substrate G CTE) ₀₂Thermal expansivity, therefore even in the chip bonding process, under long-time the use, all can cause the deterioration of display panels display quality because of the effect of thermal stress (thermal stress).

Recently have the dealer will drive the loop with low temperature compound crystal silicon fabrication techniques on the glass substrate of pixel array, but because the process technique of amorphous silicon membrane electric crystal is different with low temperature compound crystal silicon technology, so will increase cost.

And except liquid crystal indicator, remaining flat display apparatus, for example organic electric-excitation luminescent (OLED) display device etc. all has identical problem.Therefore, how providing a kind of can avoid the thermal stress effect and influence the two-d display panel and the flat display apparatus of display quality, real one of the current important topic that belongs to.

This shows that above-mentioned existing two-d display panel and flat display apparatus obviously still have inconvenience and defective, and demand urgently further being improved in structure and use.In order to solve the problem that two-d display panel and flat display apparatus exist, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, and this obviously is the problem that the anxious desire of relevant dealer solves.

Because the defective that above-mentioned existing two-d display panel and flat display apparatus exist, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of two-d display panel and the flat display apparatus of founding a kind of new structure, can improve general existing two-d display panel and flat display apparatus, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.

Summary of the invention

The objective of the invention is to, overcome the defective that existing two-d display panel and flat display apparatus exist, and provide a kind of two-d display panel and flat display apparatus of new structure, technical matters to be solved is to make it can avoid the thermal stress effect and influence display quality, thereby is suitable for practicality more.

The object of the invention to solve the technical problems realizes by the following technical solutions.According to a kind of two-d display panel that the present invention proposes, comprising: a pixel array circuit board is to have a pixel array; And one first glass circuit board, having one first aggregation and drive the loop, it is and this pixel array electrically connects.

The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.

It is for the one scan line drives the loop that aforesaid two-d display panel, wherein said first aggregation drive the loop, or is that a data line drives the loop.

Aforesaid two-d display panel, wherein said first glass circuit board be with this pixel array circuit board chip bonding, routing engages or be glued on this pixel array circuit board.

Aforesaid two-d display panel, it more comprises a linkage unit, it is to electrically connect with this first glass circuit board.

Aforesaid two-d display panel, wherein said linkage unit are to be a soft arranging wire or a flexible circuit board.

Aforesaid two-d display panel, it more comprises one second glass circuit board, it is to have second aggregation that electrically connects with this pixel array to drive the loop.

Aforesaid two-d display panel, wherein said second glass circuit board be with this pixel array circuit board chip bonding, routing engages or be glued on this pixel array circuit board.

It is for the one scan line drives the loop that aforesaid two-d display panel, wherein said second aggregation drive the loop, or is that a data line drives the loop.

Aforesaid two-d display panel, this pixel array of wherein said pixel array circuit board are to be an active pixel array, or are a passive type pixel array.

Aforesaid two-d display panel, wherein said active pixel array are to comprise at least one electric crystal, a membrane transistor or a diode, or this passive type pixel array is to comprise a capacitor.

Aforesaid two-d display panel, it more comprises: a color filter is relative with this pixel array circuit board and establish; And a liquid crystal layer, be to be arranged between this color filter and this pixel array circuit board.

The object of the invention to solve the technical problems also adopts following technical scheme to realize.According to a kind of flat display apparatus that the present invention proposes, have a module backlight and and the two-d display panel established relative with this module backlight, wherein this two-d display panel is to comprise: a pixel array circuit board is to have a pixel array; And one first glass circuit board, having one first aggregation and drive the loop, it is and this pixel array electrically connects.

It is for the one scan line drives the loop that aforesaid flat display apparatus, wherein said first aggregation drive the loop, or is that a data line drives the loop.

Aforesaid flat display apparatus, wherein said first glass circuit board be with this pixel array circuit board chip bonding, routing engages or be glued on this pixel array circuit board.

Aforesaid flat display apparatus, it more comprises a linkage unit, it is to electrically connect with this first glass circuit board.

Aforesaid flat display apparatus, wherein said linkage unit are to be a soft arranging wire or a flexible circuit board.

Aforesaid flat display apparatus, it more comprises one second glass circuit board, it is to have second aggregation that electrically connects with this pixel array to drive the loop.

Aforesaid flat display apparatus, wherein said second glass circuit board be with this pixel array circuit board chip bonding, routing engages or be glued on this pixel array circuit board.

It is for the one scan line drives the loop that aforesaid flat display apparatus, wherein said second aggregation drive the loop, or is that a data line drives the loop.

Aforesaid flat display apparatus, this pixel array of wherein said pixel array circuit board are to be an active pixel array, or are a passive type pixel array.

Aforesaid flat display apparatus, wherein said active pixel array are to comprise at least one electric crystal, a membrane transistor or a diode, or this passive type pixel array is to comprise a capacitor.

Aforesaid flat display apparatus, it more comprises: a color filter is relative with this pixel array circuit board and establish; And a liquid crystal layer, be to be arranged between this color filter and this pixel array circuit board.

The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, major technique of the present invention thes contents are as follows:

According to a kind of two-d display panel of the present invention is to comprise a pixel array circuit board and one first glass circuit board.The pixel array circuit board is to have a pixel array; First glass circuit board is to have one first aggregation to drive the loop, and wherein first aggregation driving loop is to electrically connect with pixel array.

In addition, for reaching above-mentioned purpose, be to have a module backlight and a two-d display panel according to a kind of flat display apparatus of the present invention.Wherein, module backlight is relative with two-d display panel and establish, and two-d display panel is to comprise a pixel array circuit board and one first glass circuit board.The pixel array circuit board is to have a pixel array; First glass circuit board is to have one first aggregation to drive the loop, and wherein first aggregation driving loop is to electrically connect with pixel array.

By technique scheme, two-d display panel of the present invention and flat display apparatus have following advantage at least:

Hold because of foundation a kind of two-d display panel of the present invention and flat display apparatus, be to utilize the glass circuit board and the pixel array circuit board that are provided with aggregation driving loop to electrically connect mutually, and aggregation driving loop directly is arranged on the glass circuit board, therefore can avoid because of the different thermal stress issues that produce of thermal expansivity.

In sum, the two-d display panel of special construction of the present invention and flat display apparatus can be avoided the thermal stress effect and influence display quality.It has above-mentioned many advantages and practical value, and in like product, do not see have similar structural design to publish or use and really genus innovation, no matter it all has bigger improvement on product structure or function, have large improvement technically, and produced handy and practical effect, and more existing two-d display panel and flat display apparatus have the multinomial effect of enhancement, thereby be suitable for practicality more, and have the extensive value of industry, really be a new and innovative, progressive, practical new design.

Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of instructions, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.

Description of drawings

Fig. 1 is for showing a synoptic diagram of known a kind of two-d display panel.

Fig. 2 is for showing a synoptic diagram of known another kind of two-d display panel.

Fig. 3 is for showing the synoptic diagram according to a kind of flat display apparatus of preferred embodiment of the present invention.

Fig. 4 A to 4C is for showing that wherein Fig. 4 B is the vertical view for Fig. 4 A according to the synoptic diagram of a kind of two-d display panel of preferred embodiment of the present invention, and Fig. 4 C is a sectional view of AA line among Fig. 4 B.

Fig. 5 is for showing that it is to have a plurality of first glass circuit boards and a plurality of second glass circuit board according to a synoptic diagram of the another kind of two-d display panel of preferred embodiment of the present invention.

Fig. 6 is for showing that it is to be electrically connected between pixel array circuit board and first glass circuit board and second glass circuit board by a Connection Element according to a synoptic diagram of another two-d display panel of preferred embodiment of the present invention.

Fig. 7 is for showing the synoptic diagram according to another two-d display panel of preferred embodiment of the present invention.

1,2: two-d display panel 11,21: pixel array

12,22: scanning line driving loop 13,23: data line drives the loop

TFT ₀₁, TFT ₀₂: membrane transistor G ₀₁, G ₀₂: glass substrate

3: flat display apparatus 31: module backlight

311: housing 312: luminescence unit

32: two-d display panel 321: the pixel array circuit board

323: the second glass circuit boards of 322: the first glass circuit boards

324: linkage unit L ₁: light

G ₁₁, G ₂₁, G ₃₁: substrate P ₁₁, P ₂₁, P ₃₁: electric connection pad

IC ₂₁: first aggregation drives loop IC ₃₁: second aggregation drives the loop

A _Pixel: pixel array TFT ₁₁: membrane transistor

L _Power: power lead L _SignalSignal wire

C _Sel: select loop C _Buf: impact damper

U ₁: control module

Embodiment

Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to two-d display panel and its embodiment of flat display apparatus, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.

Hereinafter with reference to correlative type, two-d display panel and flat display apparatus according to preferred embodiment of the present invention are described.

Please refer to shown in Figure 3ly, is to have a module 31 backlight and a two-d display panel 32 according to the flat display apparatus 3 of preferred embodiment of the present invention.Wherein, flat display apparatus 3 is to can be a liquid crystal indicator or an organic electroluminescence display device, is to be example with the liquid crystal indicator in present embodiment.

Module 31 backlight and two-d display panel 32 are relative and establish, and module backlight 31 is to produce at least one light L ₁And directive two-d display panel 32.Wherein, module 31 backlight is to comprise a housing 311 and at least one luminescence unit 312, and luminescence unit 312 is to be arranged in the housing 311, and produces light L ₁Directive two-d display panel 32.In addition, luminescence unit 312 be can comprise a cold-cathode fluorescence lamp (Cold Cathode Fluorescent Lamp, CCFL) or a light emitting diode (Lightemitting device, LED).

Please refer to shown in Fig. 4 A, two-d display panel 32 is to comprise a pixel array circuit board 321, one first glass circuit board 322 and one second glass circuit board 323.

Pixel array circuit board 321 is to have a pixel array A _Pixel, pixel array A wherein _PixelBe to can be an active pixel array or be a passive type pixel array.In present embodiment, be to be example with active pixel array, it is to comprise at least one electric crystal, a membrane transistor or a diode, is with pixel array A in this _PixelComprise plurality of films electric crystal TFT ₁₁Be example.In addition, if be the passive type pixel array, then it is to comprise at least one capacitor.

In addition, in present embodiment, pixel array circuit board 321 comprises that more one is the substrate G of material with glass ₁₁And at least one electric connection pad P ₁₁, and electric connection pad P ₁₁With membrane transistor TFT ₁₁Be can be by low temperature compound crystal silicon technology or amorphous silicon technology and be formed at substrate G ₁₁On.Moreover, in present embodiment, electric connection pad P ₁₁Be respectively with membrane transistor TFT ₁₁Gate and source electrode electrically connect (not shown).

First glass circuit board 322 is to have one first aggregation to drive loop IC ₂₁Wherein first glass circuit board 322 is to engage or be glued on the pixel array circuit board 321 with chip bonding, routing with pixel array circuit board 321.In present embodiment, first glass circuit board 322 comprises that more one is the substrate G of material with glass ₂₁And at least one electric connection pad P ₂₁, and electric connection pad P ₂₁And first aggregation drives loop IC ₂₁Be can be by low temperature compound crystal silicon technology or amorphous silicon technology and be formed at substrate G ₂₁Same surface on.In addition, in present embodiment, first aggregation drives loop IC ₂₁Being to can be that the one scan line drives the loop or being that a data line drives the loop, is to drive loop IC with first aggregation at this ₂₁For the one scan line drives the loop is example, and it is to see through electric connection pad P respectively ₂₁With P ₁₁And with the membrane transistor TFT of pixel array circuit board 321 ₁₁Gate (Gate) electrically connect.Moreover in present embodiment, the scanning line driving loop is to include a power lead L at least _Power, a signal wire L _Signal, an impact damper C _BufOr one select loop C _Sel

Second glass circuit board 323 is to have one second aggregation to drive loop IC31.Wherein second glass circuit board 323 is to engage or be glued on the pixel array circuit board 321 with chip bonding, routing with pixel array circuit board 321.In present embodiment, second glass circuit board 323 comprises that more one is the substrate G of material with glass ₃₁And at least one electric connection pad P ₃₁, and electric connection pad P ₃₁And second aggregation drives loop IC ₃₁Be can be by low temperature compound crystal silicon technology or amorphous silicon technology and be formed at substrate G ₃₁Same surface on.In addition, in present embodiment, second aggregation drives loop IC ₃₁Being to can be that the one scan line drives the loop or being that a data line drives the loop, is to drive loop IC with second aggregation at this ₃₁Be that data line driving loop is an example, it is to see through electric connection pad P respectively ₂₁With P ₁₁And with the membrane transistor TFT of pixel array circuit board 321 ₁₁Source electrode (Drain) electrically connect.Moreover in present embodiment, it is to include a power lead L at least that data line drives the loop _Power, a signal wire L _Signal, an impact damper C _BufOr one select loop C _Sel

Please refer to shown in Fig. 4 B and Fig. 4 C, wherein Fig. 4 C is the cross sectional side view for AA line among Fig. 4 B.In present embodiment, two-d display panel 32 more comprises a color filter 324 and a liquid crystal layer 325.Color filter 324 is relative with pixel array circuit board 321 and establish, and liquid crystal layer 325 is to be arranged between color filter 324 and the pixel array circuit board 321.In addition, the electric connection pad P of first glass circuit board 322 ₂₁Be can be by a projection or an anisotropic conductive and with the electric connection pad P of pixel array circuit board 321 ₁₁Electrically connect.Identical, the electric connection pad P of second glass circuit board 323 ₃₁Also can be by projection or anisotropic conductive and with the electric connection pad P of pixel array circuit board 321 ₁₁Electrically connect (not shown).

In present embodiment, first glass circuit board 322 and second glass circuit board 323 are when low temperature compound crystal silicon processing procedure, be to form a plurality of first glass circuit boards and a plurality of second glass circuit board simultaneously, and, one group of first glass circuit board and one group of second glass circuit board are set afterwards again according to the demand of two-d display panel 32 in the substrate G of pixel array circuit board 321 forming independent first glass circuit board and second glass circuit board through processing (for example cutting) back ₁₁Go up (shown in Fig. 4 B), or plural groups first glass circuit board and plural groups second glass circuit board are set in the substrate G of pixel array circuit board 321 ₁₁Go up (as shown in Figure 5), even can be as shown in Figure 6, by a linkage unit 324 (for example soft arranging wire or flexible circuit board) respectively with the electric connection pad P of first glass circuit board 322 ₂₁And the electric connection pad P of second glass circuit board ₃₁Electric connection pad P with the pixel array circuit board ₁₁Electrically connect.

Palpus attention person, because driving the loop is to include different process technique such as CMOS processing procedure, PMOS processing procedure or NMOS processing procedure in the processing procedure of reality, therefore also can be as shown in Figure 7, can realize with the process technique of flexible circuit board via the control module U1 of different process technique partly needing, and be integrated in the two-d display panel 32.

In sum, because of foundation a kind of two-d display panel of the present invention and flat display apparatus, be to utilize the glass circuit board and the pixel array circuit board that are provided with aggregation driving loop to electrically connect mutually, and aggregation drives the loop and directly is arranged on the glass circuit board, therefore can avoid taking place the thermal stress issues that produces because of thermal expansivity is different as known wafer and glass.

The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.

Claims

1. two-d display panel is characterized in that it comprises:

One pixel array circuit board is to have a pixel array; And

One first glass circuit board has one first aggregation and drives the loop, and it is to electrically connect with this pixel array.

2. two-d display panel as claimed in claim 1 is characterized in that it is for the one scan line drives the loop that wherein said first aggregation drives the loop, or is that a data line drives the loop.

3. two-d display panel as claimed in claim 1, it is characterized in that wherein said first glass circuit board be with this pixel array circuit board chip bonding, routing engages or be glued on this pixel array circuit board.

4. two-d display panel as claimed in claim 1 is characterized in that it more comprises a linkage unit, and it is to electrically connect with this first glass circuit board.

5. two-d display panel as claimed in claim 4 is characterized in that wherein said linkage unit is to be a soft arranging wire or a flexible circuit board.

6. two-d display panel as claimed in claim 1 is characterized in that it more comprises one second glass circuit board, and it is to have second aggregation that electrically connects with this pixel array to drive the loop.

7. two-d display panel as claimed in claim 6, it is characterized in that wherein said second glass circuit board be with this pixel array circuit board chip bonding, routing engages or be glued on this pixel array circuit board.

8. two-d display panel as claimed in claim 6 is characterized in that it is for the one scan line drives the loop that wherein said second aggregation drives the loop, or is that a data line drives the loop.

9. two-d display panel as claimed in claim 1, this pixel array that it is characterized in that wherein said pixel array circuit board are to be an active pixel array, or are a passive type pixel array.

10. two-d display panel as claimed in claim 9 it is characterized in that wherein said active pixel array is to comprise at least one electric crystal, a membrane transistor or a diode, or this passive type pixel array is to comprise a capacitor.

11. two-d display panel as claimed in claim 1 is characterized in that it more comprises:

One color filter is relative with this pixel array circuit board and establish; And

One liquid crystal layer is to be arranged between this color filter and this pixel array circuit board.

12. a flat display apparatus is characterized in that having a module backlight and and the two-d display panel established relative with this module backlight, wherein this two-d display panel is to comprise:

One pixel array circuit board is to have a pixel array; And

13. flat display apparatus as claimed in claim 12 is characterized in that wherein this first aggregation driving loop is to be that the one scan line drives the loop, or is that a data line drives the loop.

14. flat display apparatus as claimed in claim 12, it is characterized in that wherein this first glass circuit board be with this pixel array circuit board chip bonding, routing engages or be glued on this pixel array circuit board.

15. flat display apparatus as claimed in claim 12 is characterized in that it more comprises a linkage unit, it is to electrically connect with this first glass circuit board.

16. flat display apparatus as claimed in claim 15 is characterized in that wherein this linkage unit is to be a soft arranging wire or a flexible circuit board.

17. flat display apparatus as claimed in claim 12 is characterized in that it more comprises one second glass circuit board, it is to have second aggregation that electrically connects with this pixel array to drive the loop.

18. flat display apparatus as claimed in claim 17, it is characterized in that wherein this second glass circuit board be with this pixel array circuit board chip bonding, routing engages or be glued on this pixel array circuit board.

19. flat display apparatus as claimed in claim 17 is characterized in that wherein this second aggregation driving loop is to be that the one scan line drives the loop, or is that a data line drives the loop.

20. flat display apparatus as claimed in claim 12 is characterized in that wherein this pixel array of this pixel array circuit board is to be an active pixel array, or is a passive type pixel array.

21. flat display apparatus as claimed in claim 20 it is characterized in that wherein this active pixel array is to comprise at least one electric crystal, a membrane transistor or a diode, or this passive type pixel array is to comprise a capacitor.

22. flat display apparatus as claimed in claim 12 is characterized in that it more comprises: