Liquid crystal display panel

1. An active matrix drive-type liquid crystal display panel,

obtained by a process comprising

forming a metal film on at least one surface of a substrate of a non-alkali glass,

patterning the metal film to form a wiring film, and then

forming a gate insulating film comprising an inorganic substance, wherein

the wiring film and the insulating film are formed on the at least one surface of the substrate of the non-alkali glass,

the wiring film has a thickness of 0.1 μm or larger,

the insulating film has a thickness of 100 nm or larger,

the substrate has a long side of 1,800 mm or larger, a short side of 1,500 mm or larger, and a thickness of 0.5 mm or smaller,

the metal film comprises a metal having a product of a Young's modulus and a thermal expansion coefficient at room temperature of from 10,000×10 −7 GPa/° C. to 25,000×10 −7 GPa/° C.,

the inorganic substance of the gate insulating film has an average coefficient of thermal expansion at a temperature of 50° C. to 350° C. smaller than that of the non-alkali glass, and

the non-alkali glass has a Young's modulus of from 70 GPa to 95 GPa and an average coefficient of thermal expansion α at a temperature of 50° C. to 350° C. of from 32×10 −7 /° C. to 45×10 −7 /° C.,

the Young's modulus E and the average coefficient of thermal expansion α of the non-alkali glass satisfy formula (1):

20α+7 E ≥1335  (1), and

the non-alkali glass comprises, in terms of mol % on the basis of oxides:

SiO 2

 66 to 74,

Al 2 O 3

 10 to 15,

B 2 O 3

0.1 to 5,

MgO

  2 to 12,

CaO

  3 to 11,

SrO

  0 to 10,

BaO

  0 to 5 and

ZrO 2

  0 to 2.

2. The liquid crystal display panel according to claim 1 , wherein the non-alkali glass has a composition, in terms of mol % on the basis of oxides, satisfying the relationship of:

759−13.1×SiO 2 −7.5×Al 2 O 3 −15.5×B 2 O 3 +9.7×MgO+21.8×CaO+27.2×SrO+27.9×BaO≤0.

3. The liquid crystal display panel according to claim 1 , wherein the metal is selected from the group consisting of copper, aluminum, and molybdenum.

4. The liquid crystal display panel according to claim 1 , wherein the inorganic substance is selected from the group consisting of silicon nitride, silicon oxide, and silicon oxynitride.

5. The liquid crystal display panel according to claim 1 , which is obtained at a maximum temperature of 450° C. or lower.

6. The liquid crystal display panel according to claim 1 , wherein the non-alkali glass comprises ZrO 2 in a content ranging from more than 0 to 2 mol %.

7. The liquid crystal display panel according to claim 1 , wherein the non-alkali glass comprises BaO in a content ranging from 0 to 1 mol %.

8. The liquid crystal display panel according to claim 1 , wherein the non-alkali glass does not substantially contain BaO.

9. The liquid crystal display panel according to claim 1 , wherein the Young's modulus E and the average coefficient of thermal expansion a of the non-alkali glass satisfy:

20α+7 E ≥1341.

10. The liquid crystal display panel according to claim 1 , wherein the Young's modulus E and the average coefficient of thermal expansion α of the non-alkali glass satisfy:

20α+7 E ≥1353.

11. A substrate, comprising

a non-alkali glass containing, in terms of mol % on the basis of oxides:

SiO 2

 66 to 74,

Al 2 O 3

 10 to 15,

B 2 O 3

0.1 to 5,

MgO

  2 to 12,

CaO

  3 to 11,

SrO

  0 to 10.

BaO

  0 to 5, and

ZrO 2

  0 to 2,

wherein

the non-alkali glass has a Young's modulus E of from 70 GPa to 95 GPa and an average coefficient of thermal expansion α at a temperature of 50° C. to 350° C. of from 32×10 −7 /° C. to 45×10 −7 /° C., and

the Young's modulus E and the average coefficient of thermal expansion α satisfy formula (1):

20α+7 E ≥1335  (1).