Description:FIELD OF INVENTION
[001] The present invention relates to a system and method for detecting intensity of screen discoloration in display devices. Particularly, the present invention relates to a method for measuring intensity of screen discoloration by detecting intensity of colored light emitted through screen of the display device with screen discoloration i.e. some areas of the screen appearing to be brighter/dimmer as compared to other areas and detecting variation in uniformity of the emitted colored light across all point on the screen using a perforated lux meter by comparing light intensity of the emitted colored light captured from areas with screen discoloration and area without screen discoloration.

BACKGROUND OF THE INVENTION
[002] Screen discoloration is a phenomenon that occurs in electronic devices, commonly in smartphones, due to dead pixels in the screen of such devices. Each individual pixel produces its own light, which gradually dims over time. If an image remains on the screen for many hours, certain pixels get overused and degrade faster, creating discoloration in particular areas.

[003] The conventionally used method for identifying screen discoloration was entirely manual. Such methods are also affected by the external environmental factors such as surrounding brightness. Other factors affecting the identification process using said method involves customer location, urgency, behavior of customer, etc. One such conventional method involves detection of screen discoloration through visual inspection by human testers. Such method involves visually assessing the device’s screen under various lighting conditions to identify any irregularities or inconsistencies in color and brightness. The testers compares the screen’s appearance with a standard reference to determine if there is any discoloration or unevenness. However, visual inspection is completely manual and may vary from tester to tester, resulting in inconsistent results. Further, such method may be time-consuming, especially for large-scale production. Moreover, the testers may not be able to quantify the extent of discoloration accurately, which may make it difficult to establish precise quality standards.

[004] Another method for detecting screen discoloration involves the use of colorimeter/spectrophotometer to objectively measure color and brightness. However, such methods may be expensive and may not be able to identify subtle variations. Moreover, such method also requires calibration and maintenance, which may be time-consuming.

[005] In view of the challenges associated with above state of art, there is a need for an efficient, time-saving, inexpensive, process for detecting intensity of screen discoloration with minimized manual dependencies, thereby providing accurate results.

OBJECTIVES OF THE INVENTION
[006] The present objective of the present invention is to provide a system and method for detecting intensity of screen discoloration in display devices.

[007] Another objective of the present invention is to provide an efficient, time-saving, inexpensive, process for detecting intensity of screen discoloration with minimized manual dependencies, thereby providing accurate results.

Yet another objective of the present invention is to provide a method for measuring intensity of different colored lights emitted through the screen of the display device and detect variation in uniformity of light across all point on the screen i.e. area with screen discoloration and area without screen discoloration.
[008] Other objectives and advantages of the present invention will become apparent from the following description taken in connection with the accompanying drawings, wherein, by way of illustration and example, the aspects of the present invention are disclosed.

SUMMARY OF THE INVENTION
[009] The present invention relates to a system and method for detecting intensity of screen discoloration in display devices. The system comprises of a display device to be examined for detecting intensity of screen discoloration; a software module installed in the display device to initiate screen discoloration analysis by emitting lights of multiple lights of varying colors; and a lux meter to measure intensity and detect variation in uniformity of the colored lights emitted through screen of the display device across all point on the screen. A hole is created in light sensor cap of the lux meter to allow incoming light to directly enter the sensor from even unintended directions. The hole is 4mm – 6 mm in diameter as reduction in diameter below 4mm prevents proper entry of light from all angles into the lux meter, leading to inaccurate results and increase in diameter beyond 6mm results in incapability of the lux meter to measure variation in the light intensity emitted from screen of the display device across all points, failing to detect point discolorations. The present invention also provides a method for detecting intensity of screen discoloration in display devices. The present invention provides an easy to operate, efficient, time-saving, inexpensive, process for detecting intensity of screen discoloration with minimized manual dependencies, thereby providing accurate results.

BRIEF DESCRIPTION OF DRAWINGS
[0010] The present invention will be better understood after reading the following detailed description of the presently preferred aspects thereof with reference to the appended drawings, in which the features, other aspects and advantages of certain exemplary embodiments of the invention will be more apparent from the accompanying drawing in which:

[0011] Figure 1 illustrates a flowchart depicting method for detecting screen discoloration in display devices.

DETAILED DESCRIPTION OF THE INVENTION
[0012] The following description describes various features and functions of the disclosed system with reference to the accompanying figures. In the figures, similar symbols identify similar components, unless context dictates otherwise. The illustrative aspects described herein are not meant to be limiting. It may be readily understood that certain aspects of the disclosed system can be arranged and combined in a wide variety of different configurations, all of which have not been contemplated herein.

[0013] Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope of invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

[0014] Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments and/or in combination with or instead of the features of the other embodiments.

[0015] The terms and words used in the following description are not limited to the bibliographical meanings, but, are merely used to enable a clear and consistent understanding of the invention. Accordingly, it should be apparent to those skilled in the art that the following description of exemplary embodiments of the present invention are provided for illustrative purpose only and not for the purpose of limiting the invention.

[0016] It is to be understood that the singular forms “a”, “an” and “the” include plural referents unless the context clearly dictates otherwise.

[0017] It should be emphasized that the term “comprises/comprising” when used in this specification is taken to specify the presence of stated features, steps or components but does not preclude the presence or addition of one or more other features, steps, components or groups thereof.

[0018] Accordingly, the present invention relates to a system and method for detecting intensity of screen discoloration in display devices. Particularly, the present invention relates to a method for measuring intensity of screen discoloration by detecting intensity of colored light emitted through the screen of the display device with screen discoloration i.e. some areas of the screen appearing to be brighter/dimmer as compared to other areas and detecting variation in uniformity of the emitted colored light across all point on the screen using a perforated lux meter by comparing light intensity of the emitted colored light captured from areas with screen discoloration and area without screen discoloration.

[0019] In an embodiment, the present invention relates to a system (100) for detecting screen intensity of screen discoloration in display devices. The system (100) comprises of the following components:

[0020] a) Display device (102) – The system (100) comprises of a display device (102) that needs to be examined in order to detect intensity of screen discoloration. In an exemplary embodiment, the display device (102) may be selected from a group consisting of, such as, but not limited to, mobile device, television, laptop, computer, etc.

[0021] b) Software module (104) – A software module (104) is installed in the display device (102) to initiate screen discoloration analysis by emitting multiple lights of varying colors such as, but not limited to, white colored light, and/or green colored light for further processing. The software module (104) comprises of a plurality of interfaces such as graphical user interface and text entry interface, enabling the wish master or delivery executive to interact with the software module (104) by providing commands to initiate actions in the software module (104).

[0022] c) Lux meter (106) – The present invention comprises of a lux meter (106) to measure intensity and detect variation in uniformity of the colored lights emitted through the screen of the display device across all point on the screen wherein some areas of the screen appears to be brighter/dimmer than other areas. . The lux meter (106) comprises of a photodetector housing light sensor, which is connected to the module of the lux meter (106). The module comprises of an on/off key to turn on/off the lux meter (106), a plurality of keys/buttons to perform actions, and a LCD display to display the measured value of the light intensity. In a preferred embodiment, a hole is created in the light sensor cap of the lux meter (106) that allows the incoming light to directly enter the sensor from even unintended directions, thereby enabling the light sensor to accurately capture the incoming light and provide accurate readings of the light intensities across all points of the screen as well as variation in the light intensities. In another preferred embodiment, diameter of the hole may be in a range of 4mm-6mm. In case the diameter is reduced below 4mm then the light may not properly enter lux meter (106) from all the angles, which may lead to inaccurate results. On the contrary, increase in the diameter beyond 6mm may result in incapability of the lux meter (106) to measure variation in the light intensity emitted through the screen of the display device (102) across all points (i.e. area with screen discoloration as well as area without screen discoloration), and thus may not be able to detect point discolorations. In another exemplary embodiment, the hole may be created using heated screwdriver and edges of the hole may be trimmed using a scissor. In another preferred embodiment, the lux meter (106) may be positioned flat over the screen of the display device (102) during the screen discoloration analysis such that the alignment angle is 0°, so as to accurately measure light intensity and variation in light intensity across all points of the screen, thereby indicating intensity of the screen discoloration.

[0023] The software module (104) comprises of multiple templates, each designed for a specific purpose. The first template is registration template that displays data entry fields wherein the wish master or delivery executive is required to enter details such as, but not limited to, name, phone number, IMEI number, etc. The second template displays: model number of the mobile device of the user based on the IMEI number and phone number of the user; and an option of “start diagnosis”. The wish master or delivery executive, after confirming the model number of the user, is required to select the option “start diagnosis”. The third template is product diagnosis template that displays an option of “screen discoloration analysis” along with virtual icons “start”, “fail”, and “pass”. The wish master or delivery exectuive is required to select the option “start” in order to start the analysis. The fourth template displays multiple colored lights, such as, but not limited to, white colored light, and/or green colored light, wherein the wish master or delivery executive is required to select each color one by one while simultaneously detecting light intensity of that colored light emitting out of the screen of the display device (102) using a perforated lux meter (106) and variation in intensity of the emitted colored light across all points of the screen i.e. area with screen discoloration and area without screen discoloration followed by repeating the process for other colored light.

[0024] In another embodiment, the present invention also relates to a method for detecting intensity of screen discoloration in display devices (102). The method steps are described herein detail:
a) creating a hole in light sensor of a lux meter (106) prior to initiating the detection of intensity of screen discoloration in a display device (102);
b) installing a software module (104) in the display device (102) so as to detect intensity of screen discoloration; ;
c) creating a profile of a user by a wish master or delivery executive in a first template of the software module (104) through interfaces;
d) displaying model number of the mobile device on second template of the software module (104) based on the details of the user entered while creating the profile in step (c);
e) confirming model number of the display device (102) followed by selecting an option of “start diagnosis” appearing on a second template of the software module (104) by the wish mater or delivery executive through interfaces;
f) selecting an option of “start” appearing on a third template of the software module (104) by the wish mater or delivery executive via through, so as to start screen discoloration analysis;
g) selecting any one of the options of colored lights appearing on a fourth template of the software module (104) by the wish master or delivery executive through interfaces;
h) moving the perforated lux meter (106) all over the screen of the display device (102) with screen discoloration so as to capture the values of light intensity from the area with screen discoloration as well as area without screen discoloration;
i) evaluating variation between the values of light intensities obtained in step (g);
j) selecting an option of “back” appearing on the fourth template by the wish master or delivery executive through interfaces once the screen discoloration analysis is completed for the selected colored light;
k) selecting an option of “pass” or “fail” appearing on the third template by the wish master or delivery executive via the interfaces based on variation in detected values of light intensity; and
l) repeating the steps (e) to (j), so as to detect variation in light intensity of the other colored light in area with screen discoloration and area without screen discoloration.

[0025] In an exemplary embodiment, the display device (102) may be selected from a group consisting of, such as, but not limited to, mobile device, computer, laptop, etc.

[0026] In a preferred embodiment, the hole created in the light sensor cap of the lux meter (106) allows the incoming light to directly enter the sensor from even unintended directions, thereby enabling the light sensor to accurately capture the incoming light and provide accurate readings of the light intensities as well as uniformity of the emitted colored light across all points of the screen. In another preferred embodiment, diameter of the hole may be in a range of 4mm-6mm. In case the diameter is reduced below 4mm then the light may not properly enter lux meter (106) from all the angles, which may lead to inaccurate results. On the contrary, increase in the diameter beyond 6mm may lead to incapability of the lux meter (106) to measure variation in the intensity of the colored light emitted through the screen of the display device (102) across all points (i.e. area with screen discoloration as well as area without screen discoloration), and thus may not be able to detect point discolorations. In another exemplary embodiment, the hole may be created using heated screwdriver and edges of the hole may be trimmed using a scissor. In another preferred embodiment, the perforated lux meter (106) may be positioned flat over the screen of the display device (102) during the screen discoloration analysis to maintain alignment angle at 0°, so as to accurately measure light intensity and variation in light intensity across all points of the screen.
[0027] In an exemplary embodiment, the software module (104) comprises of a graphical user interface and a text entry interface, enabling the wish master or delivery executive to interact with the software module (104) by providing commands to initiate actions within the software module (104).

[0028] The wish master or delivery executive is required to enter details of the user in data entry fields appearing on the first template of the software module (104) through text entry interface so as to create profile of the user. In an exemplary embodiment, the details may include such as, but not limited to, name, phone number, IMEI number, etc.

[0029] In an exemplary embodiment, the option of the colored lights appearing on the fourth template of the software module (104) may include, such as, but not limited to, white colored light, and/or green colored light.

[0030] In a preferred embodiment, the optimal value of illumination of white colored light emitted through the screen of the display device (102) is greater than 2 lumens. Similarly, the optimal value of illuminance of the green colored light emitted through the screen of the display device (102) is greater than 1 lumen.

[0031] In an exemplary embodiment, the option of “pass” is selected by the wish master or delivery executive when variation in the light intensity of the colored light is below 0.2. On the contrary, the option of “fail” is selected by wish master or delivery executive when the variation in the light intensity of the colored light is greater than 0.2.

[0032] In an embodiment, after the analysis of screen discoloration by the wish mater or delivery executive, the display device (102) is transported to return center, where the same process for detecting the intensity of screen discoloration is repeated and the values of variation in the light intensities of the different colored lights are recorded. Further, the central team obtains the variation data from the wish master or delivery executive as well as from the return center, which then compares both the data to identify discrepancy during the detection of screen discoloration by the wish master or delivery executive.

[0033] The present invention exhibits a number of advantages:
1. The present invention provides an easy to operate, efficient, time-saving, inexpensive, process for detecting intensity of screen discoloration with minimized manual dependencies, thereby providing accurate results.
2. The method of the present invention aids in measuring intensity of screen discoloration without manual intervention, thereby aiding in efficiently determining the status of the screen whether the screen is discolored or not.
3. The method of the present invention remains unaffected by the surrounding environment.

[0034] While this invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the scope of the appended claims.
, Claims:WE CLAIM:
1. A system for detecting intensity of screen discoloration in display devices as claimed in claim 1, comprising:
• a display device to be examined for detecting intensity of screen discoloration;
• a software module installed in the display device to initiate screen discoloration analysis by emitting lights of multiple lights of varying colors; and
• a lux meter (106) to measure intensity and detect variation in uniformity of the colored lights emitted through screen of the display device across all point on the screen;
characterized in that,
(I) a hole is created in light sensor cap of the lux meter to allow incoming light to directly enter the sensor from even unintended directions; and
(II) the hole is 4mm – 6 mm in diameter as reduction in diameter below 4mm prevents proper entry of light from all angles into the lux meter, leading to inaccurate results and increase in diameter beyond 6mm results in incapability of the lux meter (106) to measure variation in the light intensity emitted from screen of the display device (102) across all points, failing to detect point discolorations.
2. The system as claimed in claim 1, wherein the display device is selected from a group consisting of mobile device, computer, or laptop.
3. The system as claimed in claim 1, wherein the colored lights are selected from a group consisting of white colored light, and/or green colored light.
4. The system as claimed in claim 1, wherein the hole in the lux meter is created using heated screwdriver and edges of the hole are trimmed using a scissor.
5. A method for detecting intensity of screen discoloration in display devices using the system as claimed in claim 1,
a) creating a hole in light sensor of a lux meter (106) prior to initiating the detection of intensity of screen discoloration in a display device (102);
b) installing a software module (104) in the display device (102) so as to detect intensity of screen discoloration; ;
c) creating a profile of a user by a wish master or delivery executive in a first template of the software module (104) through interfaces;
d) displaying model number of the mobile device on second template of the software module (104) based on the details of the user entered while creating the profile in step (c);
e) confirming model number of the display device (102) followed by selecting an option of “start diagnosis” appearing on a second template of the software module (104) by the wish mater or delivery executive through interfaces;
f) selecting an option of “start” appearing on a third template of the software module (104) by the wish mater or delivery executive via through, so as to start screen discoloration analysis;
g) selecting any one of the options of colored lights appearing on a fourth template of the software module (104) by the wish master or delivery executive through interfaces;
h) moving the perforated lux meter (106) all over the screen of the display device (102) with screen discoloration so as to capture the values of light intensity from the area with screen discoloration as well as area without screen discoloration;
i) evaluating variation between the values of light intensities obtained in step (g);
j) selecting an option of “back” appearing on the fourth template by the wish master or delivery executive through interfaces once the screen discoloration analysis is completed for the selected colored light;
k) selecting an option of “pass” or “fail” appearing on the third template by the wish master or delivery executive via the interfaces based on variation in detected values of light intensity; and
l) repeating the steps (e) to (j), so as to detect variation in light intensity of the other colored light in area with screen discoloration and area without screen discoloration.

6. The method as claimed in claim 1, wherein the wish master or delivery executive is required to enter details of the user in data entry fields appearing on the first template of the software module (104) through a text entry interface so as to create profile of the user.

7. The method as claimed in claim 7, wherein the details of the user comprises of name, phone number, and IMEI number.

8. The method as claimed in claim 1, wherein the perforated lux meter (106) is positioned flat over the screen of the display device (102) during the screen discoloration analysis to maintain alignment angle at 0°.

9. The method as claimed in claim 1, wherein the option of “pass” is selected by the wish master or delivery executive when the variation in the light intensity of the colored light is below 0.2; and the option of “fail” is selected by wish master or delivery executive when the variation in the light intensity of the colored light is greater than 0.2.

10. The method as claimed in claim 3, wherein the white colored light emitted through the screen of the display device possess an optimal value of illumination greater than 2 lumens; and the green colored light emitted through the screen of the display device possess an optimal value of illumination greater than 1 lumen.