Display panel and method of producing the same

A display panel comprising:

• a first substrate with transparent display electrodes disposed for forming display cells within a display area;
• a second substrate disposed separately from and opposite to the first substrate and formed with partition walls for forming sections of the display cells within the display area;
• a first positioning mark disposed in at least two or more positions outside the display area of the first substrate;
• and
• a second positioning mark disposed in at least two or more positions outside the display area of the second substrate,
• wherein the first positioning marks and the second positioning marks are disposed so that the positional relation between the transparent electrodes and the partition walls can directly be recognized,
• wherein the first positioning marks are formed in the same layer as a layer in which the transparent electrodes are formed, whereas the second positioning marks are formed in the same layer as a layer in which the partition walls are formed, and
• wherein the first positioning mark and the second positioning mark do not overlap each other when the transparent electrodes and the partition walls are properly positioned.

A display panel comprising:

• a first substrate with transparent display electrodes disposed for forming display cells within a display area;
• a second substrate disposed separately from and opposite to the first substrate and formed with partition walls for forming sections of the display cells within the display area;
• a first positioning mark disposed in at least two or more positions outside the display area of the first substrate;
• and
• a second positioning mark disposed in at least two or more positions outside the display area of the second substrate,
• wherein the first positioning marks and the second positioning marks are disposed so that the positional relation between the transparent electrodes and the partition walls can directly be recognized,
• wherein the first positioning marks are formed of the same material as the material of the transparent electrodes, whereas the second positioning marks are formed of the same material as the material of the partition walls, and
• wherein the first positioning mark and the second positioning mark do not overlap each other when the transparent electrodes and the partition walls are properly positioned.

A display panel comprising:

• a first substrate with first partition walls disposed for forming sections of transparent display electrodes for forming display cells and the display cells in an at least first direction;
• a second substrate disposed separately from and opposite to the first substrate with second partition walls disposed for forming sections of the display cells in the at least first direction within a display area;
• a first positioning mark disposed in at least two or more positions outside the display area of the first substrate;
• and
• a second positioning mark disposed in at least two or more positions outside the display area of the second substrate,
• wherein the first positioning marks and the second positioning marks are disposed so that the positional relation between the first partition walls and the second partition walls can directly be recognized,
• wherein, when the first partition walls and the second partition walls are properly positioned, a combination of the first positioning mark and the second positioning mark forms a predetermined figure, and
• wherein the first positioning mark and the second positioning mark do not overlap each other when the first partition walls and the second partition walls are properly positioned.

A display panel comprising:

• a first substrate with first partition walls disposed for forming sections of transparent display electrodes for forming display cells and the display cells in an at least first direction;
• a second substrate disposed separately from and opposite to the first substrate with second partition walls disposed for forming sections of the display cells in the at least first direction within a display area;
• a first positioning mark disposed in at least two or more positions outside the display area of the first substrate;
• and
• a second positioning mark disposed in at least two or more positions outside the display area of the second substrate,
• wherein the first positioning marks and the second positioning marks are disposed so that the positional relation between the first partition walls and the second partition walls can directly be recognized,
• wherein the first positioning marks are formed in the same layer as a layer in which the first partition walls are formed, whereas the second positioning marks are formed in the same layer as a layer in which the second partition walls are formed, and
• wherein the first positioning mark and the second positioning mark do not overlap each other when the first partition walls and the second partition walls are properly positioned.

A display panel comprising:

• a first substrate with first partition walls disposed for forming sections of transparent display electrodes for forming display cells and the display cells in an at least first direction;
• a second substrate disposed separately from and opposite to the first substrate with second partition walls disposed for forming sections of the display cells in the at least first direction within a display area;
• a first positioning mark disposed in at least two or more positions outside the display area of the first substrate;
• and
• a second positioning mark disposed in at least two or more positions outside the display area of the second substrate,
• wherein the first positioning marks and the second positioning marks are disposed so that the positional relation between the first partition walls and the second partition walls can directly be recognized,
• wherein the first positioning marks are formed of the same material as the material of the first partition walls, whereas the second positioning marks are formed of the same material as the material of the second partition walls, and
• wherein the first positioning mark and the second positioning mark do not overlap each other when the first partition walls and the second partition walls are properly positioned.

A method of producing a display panel comprising:

• putting a first substrate and a second substrate on top of each other, the first substrate being formed with transparent display electrodes disposed for forming display cells within a display area, the second substrate being formed with partition walls for forming sections of the display cells within the display area;
• and
• forming pairs of first positioning marks and second positioning marks for use in verifying the positioning of the transparent electrodes and the partition walls in at least two or more positions outside the display areas of the first substrate and the second substrate before the step of putting the substrates on top of each other,
• wherein proper positioning of the transparent electrodes and the partition walls is verified when combinations of the pairs of the first positioning marks and the second positioning marks form predetermined figures, and
• wherein the first positioning marks and the second positioning marks do not overlap each other when the transparent electrodes and the partition walls are properly positioned.

A method of producing a display panel comprising:

• putting a first substrate and a second substrate on top of each other, the first substrate being formed with first partition walls disposed for forming sections of transparent display electrodes for forming display cells within the display area and the display cells in an at least first direction, the second substrate being formed with second partition walls disposed for forming sections of the display cells within the display area;
• and
• forming pairs of first positioning marks and second positioning marks for use in verifying the positioning of the first partition walls and the second partition walls in at least two positions outside the display areas of the first substrate and the second substrate before the step of putting the substrates on top of each other,
• wherein proper positioning of the first partition walls and the second partition walls is verified when combinations of the pairs of the first positioning marks and the second positioning marks form predetermined figures, and
• wherein the first positioning marks and the second positioning marks do not overlap each other when the first partition walls and the second partition walls are properly positioned.

A display panel comprising:

• a first substrate with transparent display electrodes disposed for forming display cells within a display area;
• a second substrate disposed separately from and opposite to the first substrate and formed with partition walls for forming sections of the display cells within the display area;
• a first positioning mark disposed in at least two or more positions outside the display area of the first substrate;
• and
• a second positioning mark disposed in at least two or more positions outside the display area of the second substrate,
• wherein the first positioning marks and the second positioning marks are disposed so that the positional relation between the transparent electrodes and the partition walls can directly be recognized,
• wherein the first positioning mark and the second positioning mark have a common center when the transparent electrodes and the partition walls are properly positioned, and
• wherein the first positioning mark and the second positioning mark do not overlap each other when the transparent electrodes and the partition walls are properly positioned.

A display panel comprising:

• a first substrate with first partition walls disposed for forming sections of transparent display electrodes for forming display cells and the display cells in an at least first direction;
• a second substrate disposed separately from and opposite to the first substrate with second partition walls disposed for forming sections of the display cells in the at least first direction within a display area;
• a first positioning mark disposed in at least two or more positions outside the display area of the first substrate;
• and
• a second positioning mark disposed in at least two or more positions outside the display area of the second substrate,
• wherein the first positioning marks and the second positioning marks are disposed so that the positional relation between the first partition walls and the second partition walls can directly be recognized,
• wherein the first positioning mark and the second positioning mark have a common center when the first partition walls and the second partition walls are properly positioned, and
• wherein the first positioning mark and the second positioning mark do not overlap each other when the first partition walls and the second partition walls are properly positioned.

A display panel comprising:

• a first substrate for forming display cells within a display area, wherein a first positioning mark is disposed on the first substrate,
• a second substrate for forming the display cells within the display area, wherein the second substrate is disposed opposite to the first substrate and wherein a second positioning mark is formed on the second substrate;
• wherein, when the first substrate and the second substrate are properly positioned, a combination of the first positioning mark and the second positioning mark forms a predetermined figure, and
• wherein the first positioning mark and the second positioning mark do not overlap each other when the first substrate and the second substrate are properly positioned.