T 2078/13 - Disclosure in drawings

EPO T 2078/13

For the decision, click here

Key points

• In this case, the Board accepts that a claimed feature was disclosed in the drawings.
• " The skilled person would therefore understand that the location of the ground line GND and the power supply line VDD in relation to the other components of the display device shown in Figure 2a is not fortuitous, but significant for achieving the object of the inven­tion. The skilled person would thus regard the location of the GND and VDD lines as belonging to the teaching of the invention"
• Hence, " not fortuitous"  and " significant for achieving the object of the invention" are the key criteria for using the drawings as basis under Article 123(2) EPC.

Reasons for the Decision

1. Amendments

1.1 In the decision under appeal the examining division held that the subject-matter of the claims according to the requests then on file extended beyond the content of the application as filed. In particular, it was held that various intermediate generalizations could be identified.

1.2 The board is satisfied that the objections of the examining division have been overcome by way of amendment, namely by claiming the subject-matter to be protected more narrowly. In particular, by specifying

- in claims 1 and 3 that the data and scan drivers are "formed on the substrate", and

- in claims 1 and 3 the specific arrangements of the ground line GND and the power supply line VDD derivable from Figures 2a and 3, respectively, and

- in claim 1 that the data driver is located between the first and second scan drivers "along the direction of the upper side of the pixel circuit", and

- in claim 3 that the first and second scan drivers are "formed side by side along a lower side of the pixel circuit",

it has been excluded that claims 1 and 3 could be read more broadly than warranted by the original disclosure.

1.3 Regarding claim 1 the features of the display device related to the pixel circuit, outer circuit, data driver, and first and second scan drivers are based on claim 1 as originally filed and on the description and drawings as originally filed (page 4, lines 9-19; Figure 2a).

1.3.1 It remains to be considered whether the feature of claim 1 relating to the ground line GND and power supply line VDD has a basis in the application as filed.

1.3.2 The present invention is concerned with minimizing the so called "Bezel area", i. e. the area between the edge of the pixel area and the edge of the substrate. This is to be achieved by effective alignment of the rele­vant components of the display device (see the descrip­tion, page 2, lines 6-7 and page 3, lines 1-2). The ground line GND and the power supply line VDD belong to these components to be aligned. This is reflected in ori­ginal claims 2 and 5, in which the position of these lines in relation to the other relevant components is specified. In particular, it is stated that the GND and VDD lines are located on the outer sides of the scan drivers and on a portion of the perimeter of the pixel circuit. It is noted that original claim 5 depends on original claim 3, which in turn depends on original claim 2. Original claim 3 defines the electro-luminescence device to com­prise an organic luminescence layer. It is immedi­ately evident to the skilled person reading the application as filed that the features of claim 5 as filed, relating to the specific arrangement of the GND and VDD lines, are equally applicable to any electro-luminescence device.

1.3.3 The skilled person would therefore understand that the location of the ground line GND and the power supply line VDD in relation to the other components of the display device shown in Figure 2a is not fortuitous, but significant for achieving the object of the inven­tion. The skilled person would thus regard the location of the GND and VDD lines as belonging to the teaching of the invention, in particular their arrangement in relation to the scan drivers and the pixel circuit.

1.3.4 Moreover, it is stated on page 4, lines 27-29, that the location of the power supply line and the ground line shown in Figure 2a is only an example of an embodiment of the invention and that the location can vary depen­ding on the design. From this it is evident for the skilled person that the precise location of the lines shown in Figure 2a is not crucial for achieving the object of the invention. In any case, since Figure 2a is a schematic drawing conventionally included in patent documents, dimensions cannot be deduced from it.

1.3.5 In view of the above it is considered to be directly and unambiguously derivable from original claims 2 and 5 and the descrip­tion and drawings as originally filed (page 4, lines 22-24 and 27-29; Figure 2a) that the power supply line VDD is placed at outer left side and a portion of outer left lower side of the first scan driver and outer left side of the pixel circuit. Simi­larly, it is considered to be directly and unambi­gu­ous­ly derivable from the application documents that the ground line GND is placed at outer right side and a portion of outer right lower side of the second scan driver and outer right side of the pixel circuit.

1.4 Regarding claim 3 the features of the display device related to the pixel circuit, outer circuit, data driver, and first and second scan drivers are based on claims 1 and 6 as originally filed and on the descrip­tion and drawings as originally filed (page 5, lines 3-10 and 25-28; Figure 3).

Moreover, for reasons corresponding to those above, the feature of claim 3 relating to the ground line GND and power supply line VDD is based on original claim 6 and 9 and the descrip­tion and drawings as originally filed (page 4, lines 27-29; page 5, lines 3-10; Figure 3).

1.5 Dependent claims 2 and 4 are both based on original claim 3.

The description has been brought into conformity with the amended claims without extending beyond the content of the application as filed.

1.6 In view of the above the board concludes that the amendments comply with the requirements of Article 123(2) EPC.