Prosecution Insights
Last updated: April 19, 2026
Application No. 19/095,726

PIXEL CIRCUIT AND CONTROL METHOD THEREOF, ELECTRONIC DEVICE, STORAGE MEDIUM AND PROGRAM PRODUCT

Non-Final OA §103
Filed
Mar 31, 2025
Examiner
WILSON, DOUGLAS M
Art Unit
2622
Tech Center
2600 — Communications
Assignee
Semiconductor Integrated Display Technology Co. Ltd.
OA Round
1 (Non-Final)
75%
Grant Probability
Favorable
1-2
OA Rounds
2y 9m
To Grant
91%
With Interview

Examiner Intelligence

Grants 75% — above average
75%
Career Allow Rate
320 granted / 427 resolved
+12.9% vs TC avg
Strong +16% interview lift
Without
With
+16.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
25 currently pending
Career history
452
Total Applications
across all art units

Statute-Specific Performance

§101
1.9%
-38.1% vs TC avg
§103
56.5%
+16.5% vs TC avg
§102
22.5%
-17.5% vs TC avg
§112
14.4%
-25.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 427 resolved cases

Office Action

§103
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. Claims 1-20 are pending. Priority Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55. Drawings The drawings are objected to under 37 CFR 1.83(a) because they fail to show “the drain of the third transistor is grounded” or “The source and drain of the third transistor T3 are connected to the drain of the driving transistor TD and VSS, respectively” as described in [0043] and [0055], respectively, of the specification. Any structural detail that is essential for a proper understanding of the disclosed invention should be shown in the drawing. MPEP § 608.02(d). Corrected drawing sheets in compliance with 37 CFR 1.121(d) are required in reply to the Office action to avoid abandonment of the application. Any amended replacement drawing sheet should include all of the figures appearing on the immediate prior version of the sheet, even if only one figure is being amended. The figure or figure number of an amended drawing should not be labeled as “amended.” If a drawing figure is to be canceled, the appropriate figure must be removed from the replacement sheet, and where necessary, the remaining figures must be renumbered and appropriate changes made to the brief description of the several views of the drawings for consistency. Additional replacement sheets may be necessary to show the renumbering of the remaining figures. Each drawing sheet submitted after the filing date of an application must be labeled in the top margin as either “Replacement Sheet” or “New Sheet” pursuant to 37 CFR 1.121(d). If the changes are not accepted by the Examiner, the applicant will be notified and informed of any required corrective action in the next Office action. The objection to the drawings will not be held in abeyance. Claim Objections Claim 1 is objected to because of the following informalities: The limitation “wherein the compensation circuit is configured to provide a compensation path for a turn-on threshold of the driving transistor” should read “wherein the compensation circuit is configured to provide a compensation path for a turn-on threshold voltage of the driving transistor” to clearly specify what is being provided with a compensation path. Appropriate correction is required. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. This application currently names joint inventors. In considering patentability of the claims the Examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each Claim that was not commonly owned as of the effective filing date of the later invention in order for the Examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claims 1-20 are rejected under 35 U.S.C. 103 as being unpatentable over Jeong (US 2012/0019498) in view of Qian (CN 115331633). All reference is to Jeong unless otherwise indicated. Regarding Claims 1 and 16 (Original), Jeong teaches a pixel circuit and a control method for the pixel circuit, comprising: a light-emitting circuit [fig. 2 @OLED] connected to a driving circuit [fig. 2 @T1], wherein the light-emitting circuit is configured to emit light or to be turned off according to a driving current provided by the driving circuit [¶0056, “The first transistor T1 controls a driving current that is supplied to the organic light emitting diode (OLED)”]; the driving circuit comprising a driving transistor [fig. 2 @T1], wherein the driving transistor [fig. 2 @T1] is connected to a data signal input end of the pixel circuit [fig. 2@N1], a power input end [fig. 2 @N2] and the light-emitting circuit [fig. 2 @Vd]; and the driving transistor is configured to control the light-emitting circuit to emit light or to be turned off [¶0074] according to a signal input by the data signal input end [fig. 3 @data signal is Vsus or Vdata]; a compensation circuit [fig. 2 @C1 and C2] connected to the driving circuit [fig. 2 @T1] and the power input end [fig. 2 @ELVDD], wherein the compensation circuit [fig. 2 @C1 and C2] is configured to provide a compensation path [¶0077, “During the above-mentioned second period t2, the turn-on condition changes to the turned off condition when the voltage between the gate and the source is equal to the threshold voltage of the first transistor T1 while the voltage of the source electrode drops when the first transistor T1 is kept in the floating state (source voltage Vs). At this time, the threshold voltage of the first transistor t1 is stored in the first capacitor C1”] for a turn-on threshold of the driving transistor [threshold voltage Vth of T1]; a switch circuit [fig. 2 @T2-T4] connected to the driving circuit [fig. 2 @T1] and the compensation circuit [fig. 2 @C1 and C2], wherein the switch circuit [fig. 2 @T2-T4] is configured to control [operation of T2-T4 controls current flow to and from the compensation circuit and the voltages stored in the compensation circuit] connections of the driving transistor [fig. 2 @T1] with the compensation circuit [fig. 2 @C1 and C2], the data signal input end [fig. 2 @N1] and the power input end [fig. 2 @N2], to provide each pole of the driving transistor [figs. 2 and 3 @Vg and Vs and Vd] with different potentials for controlling the pixel circuit to be in different working phases [fig. 3 illustrates the different potentials on N1 and N2 during the t1-t4, fig. 2 illustrates T4 controlling Vd by setting Vd equal to ELVSS (¶0062)]; wherein the pixel circuit is configured to: be at least in a discharge phase [fig. 3 @t2] before the light-emitting circuit in the pixel circuit is controlled to be in a light-emitting state [¶0091, “After the scanning period t1-t3 is completed, during the fourth period t4 set as the light emitting period”]; in the discharge phase [fig. 3 @t2], the source voltage [figs. 2 and 3 @N2/Vs] of the driving transistor [fig. 2 @T1] is discharged through the compensation circuit [construed as Vs charging C1 and C2] to compensate a threshold voltage of the driving transistor [¶0077, “During the … second period t2, the turn-on condition changes to the turned off condition when the voltage between the gate and the source is equal to the threshold voltage of the first transistor T1 while the voltage of the source electrode drops when the first transistor T1 is kept in the floating state (source voltage Vs). At this time, the threshold voltage of the first transistor t1 is stored in the first capacitor C1”] Jeong does not teach the driving transistor source voltage includes a substrate bias voltage Qian teaches a driving transistor source voltage [fig. 1 @S] includes a substrate bias voltage [voltage on the transistor substrate (fig. 1 @100) is directly connected to source electrode of the driving transistor (fig. 1 @M2), fig. 1 teaches body connection electrode is directly connected to the transistor source electrode, page 8 lines 28-30, “the first connection electrode 111 is connected to the substrate terminal 103 through a via hole 131”] Before the application was filed it would have been obvious to one of ordinary skill in the art to incorporate the concept of directly connecting the transistor source electrode and the transistor substrate, as taught by Qian, into the pixel circuit taught by Jeong in order that the high power supply terminal ELVDD will mitigate the change in driving transistor threshold voltage under the influence of external factors and will thereby improve the display quality (Qian: page 10 lines 12-17). Regarding Claim 2 (Original), Jeong in view of Qian teaches the pixel circuit according to Claim 1, wherein the switch circuit [fig. 5 @T2-T5] comprises a first transistor [T2], a second transistor [fig. 5 @T3], a third transistor [fig. 5 @T4] and a fourth transistor [fig. 5 @T5], the light-emitting circuit comprises a light-emitting diode [fig. 5 @OLED], wherein: a gate of the driving transistor [fig. 5 @Vg] is connected to the data signal [fig. 5 @Dm] input end of the pixel circuit through a drain of the first transistor [fig. 5 @T2] and a source of the first transistor [fig. 5 @T2]; a source of the driving transistor [fig. 5 @T1] is connected to the power input [fig. 5 @ELVDD] end through a drain of the second transistor [fig. 5 @T3] and a source of the second transistor [fig. 5 @T3] in turn; and a drain of the driving transistor [fig. 5 @T1] is connected to an anode of the light-emitting diode [fig. 5 @OLED] through a source of the fourth transistor [fig. 5 @T5] and a drain of the fourth transistor [fig. 5 @T5] in turn; a gate of the first transistor [fig. 5 @T2] is configured to obtain a first control signal [fig. 5 @Sn], and the first control signal is used for controlling turned-on and turned-off of the first transistor [¶0057, “the gate electrode of the second transistor T2 is connected to the scanning line Sn”]; a gate of the second transistor [fig. 5 @T3] and a gate of the fourth transistor [fig. 5 @T5] are configured to obtain a second control signal [fig. 5 @En], and the second control signal [fig. 5 @En] is used for controlling turned-on and turned-off of the second transistor [fig. 5 @T3] and the fourth transistor [fig. 5 @T5]; a source of the third transistor [fig. 5 @T4] is connected to the drain of the driving transistor [fig. 5 @T1], a drain of the third transistor is grounded [fig. 5 @ ELVSS], a gate of the third transistor [fig. 5 @T4] is configured to obtain a third control signal [fig. 5 @ CSn], and the third control signal [fig. 5 @ CSn] is used for controlling turned-on and turned-off of the third transistor [ fig. 5 @T4]. Regarding Claim 3 (Original), Jeong in view of Qian teaches the pixel circuit according to Claim 2, wherein the first control signal [fig. 5 @Sn], the second control signal [fig. 5 @En] and the third control signal [fig. 5 @ CSn] at least provide a turned-on signal and a turned-off signal respectively to control the first transistor, the second transistor, the third transistor and the fourth transistor to be respectively in a corresponding turned-on state and a corresponding turned-off state [figs 5 and 6 teach the claimed control signal functionality]. Regarding Claim 4 (Original), Jeong in view of Qian teaches the pixel circuit according to Claim 1, wherein the compensation circuit comprises a first capacitor [fig. 5 @C1] and a second capacitor [fig. 5 @C2], the first capacitor and the second capacitor are sequentially connected in series between a gate of the driving transistor [fig. 5 @T1] and the power input end {ELVDD], and an intermediate connection point [fig. 5 @N2/Vs] of the first capacitor and the second capacitor is connected to the substrate of the driving transistor through a source of the driving transistor [Qian: fig. 1 @M1 illustrates claimed connection]. Regarding Claim 5 (Original), Jeong in view of Qian teaches the pixel circuit according to Claim 1, wherein the pixel circuit is configured to be controlled to enter an initial phase through the switch circuit [fig. 3 @Sn (turns on T2 and T4)]; in the initial phase [fig. 3 @t1], a voltage of a gate of the driving transistor [fig. 3 @Vg] rises to a first preset voltage [fig. 3 @Vsus], and a voltage difference of the gate and a source of the driving transistor satisfies a turned-on condition of the driving transistor [¶0074]. Regarding Claim 6 (Original), Jeong in view of Qian teaches the pixel circuit according to Claim 3, wherein the pixel circuit is configured to be controlled to enter the initial phase [through the switch circuit, by: controlling the first control signal [fig. 5 @Sn], the second control signal [fig. 5 @En] and the third control signal [fig. 5 @CSn] to provide the turned-on signal to control the first transistor [fig. 5 @T2], the second transistor [fig. 5 @T3], the third transistor [fig. 5 @T4] and the fourth transistor [fig. 5 @T5] to be in a turned-on state [fig. 6 illustrates all three control signals providing a turn-on signal to their respective transistor during t1], and controlling the data signal input end to provide an initial voltage [fig. 6 @Vsus], thereby providing the first preset voltage to the gate of the driving transistor [T2 opens and provides Asus to Vg], so that the voltage difference of the gate and the source of the driving transistor [T1] satisfies the turned-on condition [¶0074, “The first voltage (Vsus) is set to a voltage lower than the first power supply (ELVDD) which is higher than the threshold voltage of the first transistor T1, thus the first transistor T1 is turned on”], the source of the driving transistor [fig. 5 @T1] is connected to the power input end [fig. 5 @ELVDD] and the compensation circuit [fig. 5 @C1 and C2], the drain of the driving transistor [fig. 5 @Vd] is connected to the light-emitting circuit [fig. 5 @OLED] through the fourth transistor [fig. 5 @T5] and is grounded [fig. 5 @ELVSS] through the third transistor [fig. 5 @T4]. Regarding Claim 7 (Original) Jeong in view of Qian teaches the pixel circuit according to Claim 5, wherein during initial power-on [fig. 6 @ before t1], the pixel circuit is controlled to enter the initial phase [fig. 6 @t1] until the voltage of the gate of the driving transistor [fig. 6 @N1] reaches the first preset voltage [fig. 6 @Vsus], and the voltage difference of the gate [N1] and the source of the driving transistor [N2] satisfies the turned-on condition of the driving transistor [¶0074, “The first voltage (Vsus) is set to a voltage lower than the first power supply (ELVDD) which is higher than the threshold voltage of the first transistor T1, thus the first transistor T1 is turned on”]. Regarding Claim 8 (Original), Jeong in view of Qian teaches the pixel circuit according to Claim 2, wherein the pixel circuit is configured to be controlled to enter the discharge phase [fig. 6 @before t2] through the switch circuit [fig. 6 @En controls T3 off]; in the discharge phase [fig. 6 @t2], the substrate of the driving transistor [N2/Vs] is discharged to the compensation circuit [fig. 6 @N2 decreases to charge C1 with Vth] through a source of the driving transistor [Qian teaches the substrate of the driving transistor is directly connected to the source electrode], and a voltage difference of a gate [N1] and the source [N2] of the driving transistor [T1] changes until the driving transistor is in a turned-off state [¶0077, “During the above-mentioned second period t2, the turn-on condition changes to the turned off condition when the voltage between the gate and the source is equal to the threshold voltage of the first transistor T1”]. Regarding Claim 9 (Original), Jeong in view of Qian teaches the pixel circuit according to Claim 8, wherein the pixel circuit is configured to be controlled to enter the discharge phase through the switch circuit, by: controlling the second control signal [fig. 6 @En] to provide a turned-off signal, the first control signal [fig. 6 @Sn] and the third control signal [fig. 6 @CSn] to provide a turned-on signal, to control the first transistor [T2] and third transistor [T4] to be turned on, and the second transistor [T3] and fourth transistor [T5] to be turned off [fig. 6 illustrates claimed switch operations], and controlling the data signal input end to provide an initial voltage [fig. 6 @Vsus]; wherein the initial voltage is used for making the driving transistor in a turned-on state in an initial phase [¶0074, “The first voltage (Vsus) is set to a voltage lower than the first power supply (ELVDD) which is higher than the threshold voltage of the first transistor T1, thus the first transistor T1 is turned on”]; the substrate of the driving transistor [Qian teaches driving transistor substrate directly connected to Vs/N2] is connected to the compensation circuit through the source [fig. 6 @Vs/N2] of the driving transistor, and is discharged to the compensation circuit [during t2 C1 is charged to Vth by discharging Vs /N2 which Qian teaches includes the substrate voltage]. Regarding Claim 10 (Original), Jeong in view of Qian teaches the pixel circuit according to Claim 5, wherein in the initial phase [fig. 6 @t1], after the driving transistor is turned on, the pixel circuit is controlled to enter the discharge phase [fig. 6 after t1, En causes start of t2], and the discharge phase continues until the driving transistor is turned off [¶0077, “During the above-mentioned second period t2, the turn-on condition changes to the turned off condition when the voltage between the gate and the source is equal to the threshold voltage of the first transistor T1”]. Regarding Claim 11 (Original), Jeong in view of Qian teaches the pixel circuit according to Claim 2, wherein the pixel circuit is configured to be controlled to enter a third phase [fig. 6 @t3-t4] through the switch circuit after the discharge phase [fig. 6 @t2]; in the third phase, the data signal input end provides a first data signal [fig. 6 @Vdata], and an amplitude of the first data signal [fig. 6 @Vdata] is less than an amplitude of signal provided by the data signal input end in the discharge phase [fig. 6 @Vsus]; a gate of the driving transistor [fig. 6 @N1] obtains the first data signal [fig. 6 @Vdata] through the switch circuit [fig. 6 illustrates Sn opens T2 and provides Vdata to N1], the substrate of the driving transistor is connected [Qian teaches driving transistor substrate is connected to source electrode of driving transistor] to the compensation circuit [fig. 5 @C1 and C2] through a source of the driving transistor [fig. 6 @Vs/N2], and a drain of the driving transistor [fig. 5 @T1] is suspended [fig. 6 @CSn turns T4 off which terminates current flow from T1 to ELVSS through T4]. Regarding Claim 12 (Original), Jeong in view of Qian teaches the pixel circuit according to Claim 11, wherein the pixel circuit is controlled to enter the third phase [fig. 6 @t3-t4] through the switch circuit, by: controlling the first control signal [fig. 6 @Sn] to provide a turned-on signal to control the first transistor to be turned on [at t3 Sn turns T2 on], and controlling a second control signal [fig. 6 @En] and a third control signal [fig. 6 @ESn] to provide a turned-off signal [fig. 6 @En provides off signal before t4, fig. 6 @ CSn provides turn off signal before t3-t4] to control the second transistor [fig. 6 @T3], the third transistor [fig. 5 @T4] and the fourth transistor [fig. 5 @T5] to be turned off. Regarding Claim 13 (Original), Jeong in view of Qian teaches the pixel circuit according to Claim 11, wherein the pixel circuit is configured to be controlled to enter a light-emitting phase [fig. 6 @t4] through the switch circuit after the third phase [fig. 6 @t3-t4]; in the light-emitting phase, the gate of the driving transistor [fig. 6 @N1] obtains a turned-on voltage and is in the turned-on state [fig. 6 illustrates Sn turns T2 on before t4]; a source of the driving transistor [fig. 6 @Vs/N2] is connected to the power input end [fig. 5 @ELVDD] and the compensation circuit, and the drain of the driving transistor [fig. 5 @Vd] is connected [fig. 6 illustrates En turns T3 and T4 on before t4] to the light-emitting circuit [fig. 5 @OLED] through a source and a drain of a fourth transistor [fig. 5 @T5]. Regarding Claim 14 (Original), Jeong in view of Qian teaches the pixel circuit according to Claim 13, wherein the pixel circuit is controlled to enter the light-emitting phase [fig. 6 @t4] through the switch circuit, by: controlling the second control signal [fig. 6 @En] to provide a turned-on signal [fig. 6 @t4], controlling the first control signal [fig. 6 @Sn] and the third control signal [fig. 6 @SCn] to provide a turned-off signal to control the second transistor [T3] and the fourth transistor [T5] to be turned on [fig. 6 illustrates claimed states], and the first transistor [T2] and the third transistor [T4] to be turned off [fig. 6 illustrates claimed states]. Regarding Claim 15 (Original), Jeong in view of Qian teaches the pixel circuit according to Claim 13, wherein the pixel circuit controls the light-emitting circuit to be in a light-emitting state during the light-emitting phase [fig. 6 @t4]; before entering the light-emitting phase [fig. 6 @t4], the pixel circuit is sequentially controlled to enter the initial phase [fig. 6 @t1] and the discharge phase [fig. 6 @t2] to control the driving transistor [T1] to be turned on [¶0074, “The first voltage (Vsus) is set to a voltage lower than the first power supply (ELVDD) which is higher than the threshold voltage of the first transistor T1, thus the first transistor T1 is turned on”], and after the driving transistor is turned on, the threshold voltage difference caused by the substrate bias voltage [Qian teaches T1 substrate connected to Vs/N2 and the substrate voltage is indistinguishable from Vs/N2 during discharge phase t2] of the driving transistor is compensated [¶0077, “During period t2, the turn-on condition changes to the turned off condition when the voltage between the gate and the source is equal to the threshold voltage of the first transistor T1 while the voltage of the source electrode drops … the threshold voltage of the first transistor t1 is stored in the first capacitor C1”]. Regarding Claim 17 (Original), Jeong in view of Qian teaches the control method of the pixel circuit according to Claim 16, wherein before controlling the light-emitting circuit in the pixel circuit to be in the light-emitting state [fig. 6 @t4], the control method further comprises: controlling the driving transistor to be turned on through the switch circuit [¶0076, “In addition, the second and fourth transistor T2, T4 are kept on the turn-on condition by the scanning signal of low voltage, and then the gate voltage Vg and the drain voltage Vd of the first transistor T1 are the first voltage (Vsus) and the voltage of the second power supply (ELVSS), respectively”]; after the driving transistor is turned on [¶0073, “the first transistor T1 is initialized while the first voltage (Vsus), the voltage of the first power supply (ELVDD) and the voltage of the second power supply (ELVSS) are delivered to the gate electrode, the source electrode and the drain electrode of the first transistor T1 during the first period t”, ¶0074, “The first voltage (Vsus) is set to a voltage lower than the first power supply (ELVDD) which is higher than the threshold voltage of the first transistor T1, thus the first transistor T1 is turned on”], controlling the substrate of the driving transistor [Qian teaches directly connecting driving transistor source and driving transistor substrate so that Vs reflects the substrate bias and threshold voltage] to discharge to the compensation circuit [fig. 6 illustrates source voltage discharging through T1 and compensation circuit (charging C1 and C2 is equivalent to discharging Vs)], thereby compensating the threshold voltage difference caused by the substrate bias voltage of the driving transistor [Vs is reduced from ELVDD to Vsus +Vth while Vg is Vsus, reduction includes removal of any driving transistor substrate voltage until the difference between N1 and N2 is Vth which is stored in capacitor C1] . Regarding Claim 18 (Original), Jeong in view of Qian teaches the control method of the pixel circuit according to Claim 16, wherein the controlling the driving transistor to be turned on through the switch circuit, comprises: controlling a voltage of a gate of the driving transistor to rise to a first preset voltage through the switch circuit [fig. 5 @Sn opens fig. 5 @T2 which applies Vsus to node N1 which is also Vg], and controlling a voltage difference of the gate and a source of the driving transistor to satisfy a turned-on condition of the driving transistor [¶0074, “The first voltage (Vsus) is set to a voltage lower than the first power supply (ELVDD) which is higher than the threshold voltage of the first transistor T1, thus the first transistor T1 is turned on”]. Regarding Claim 19 (Original), Jeong in view of Qian teaches the control method of the pixel circuit according to Claim 16, wherein the controlling the substrate of the driving transistor to discharge to the compensation circuit, comprises: controlling by the switch circuit, the substrate of the driving transistor to be connected [fig. 6 @En turns T3 off causing discharge of Vs/N2 and charging of C1] to the compensation circuit [fig. 5 @C1 and C2] through a source [Qian teaches driving transistor substrate shorted to Vs/N2] of the driving transistor [fig. 5 @Vs/N2], controlling the control circuit to discharge to the compensation circuit [charge on C1 decreases from N2-N1 of ELVDD -Vsus to Vsus -Vsus+Vth], and controlling a voltage difference of a gate and the source of the driving transistor to be changed until the driving transistor is turned off [¶0077, “During the above-mentioned second period t2, the turn-on condition changes to the turned off condition when the voltage between the gate and the source is equal to the threshold voltage of the first transistor T1”]. . Regarding Claim 20 (Original), Jeong in view of Qian teaches the control method of the pixel circuit according to Claim 16, wherein after the at least controlling the pixel circuit to be in the discharge phase [fig. 6 @t2], the control method further comprises: providing, by the data signal input end, a first data signal [fig. 6 illustrates Vdata provided after t2], wherein an amplitude of the first data signal [fig. 6 illustrates Vsus larger than Vdata] is less than an amplitude of a signal provided by the data signal input end in the discharge phase; controlling, a transistor of the switch circuit between a gate of the driving transistor and the data signal input end to be turned on [fig. 6 illustrates Sn turns T2 on after t2 applying Vdata to N1], controlling the substrate of the driving transistor to be connected [Qian teaches driving transistor substrate is connected to source electrode of driving transistor] to the compensation circuit [fig. 5 illustrates Vs/N2 connected to C1 and C2] through a source of the driving transistor, and controlling a drain [Vd] of the driving transistor [fig. 5 @T1] to be suspended [fig. 6 @CSn turns T4 off which terminates current flow from T1 to ELVSS through T4]. Conclusion Any inquiry concerning this communication or earlier communications from the Examiner should be directed to Douglas Wilson whose telephone number is (571)272-5640. The Examiner can normally be reached 1000-1700 EST. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the Examiner by telephone are unsuccessful, the Examiner’s supervisor, Patrick Edouard can be reached at 571-272-7603. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /Douglas Wilson/ Primary Examiner, Art Unit 2622
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Prosecution Timeline

Mar 31, 2025
Application Filed
Feb 21, 2026
Non-Final Rejection — §103 (current)

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