CN106226934B - Detection circuit, display substrate, display panel and display device - Google Patents
Detection circuit, display substrate, display panel and display device Download PDFInfo
- Publication number
- CN106226934B CN106226934B CN201610806029.8A CN201610806029A CN106226934B CN 106226934 B CN106226934 B CN 106226934B CN 201610806029 A CN201610806029 A CN 201610806029A CN 106226934 B CN106226934 B CN 106226934B
- Authority
- CN
- China
- Prior art keywords
- resistor
- detection circuit
- module
- node
- display substrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
- G01K7/04—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples the object to be measured not forming one of the thermoelectric materials
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Nonlinear Science (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Computer Hardware Design (AREA)
- Optics & Photonics (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Testing Of Individual Semiconductor Devices (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The invention provides a detection circuit, a display substrate, a display panel and a display device, belongs to the technical field of display, and can solve the problem that the existing display panel cannot detect temperature. The detection circuit of the present invention includes: the device comprises a current control module and a temperature detection module, wherein the current control module is connected with the temperature detection module; the temperature detection module is used for generating leakage current under the control of the current control module and acquiring the temperature of the display substrate according to the leakage current.
Description
Technical Field
The invention belongs to the technical field of display, and particularly relates to a detection circuit, a display substrate, a display panel and a display device.
Background
The liquid crystal display panel adopts progressive scanning matrix display of MXN dot arrangement. The thin film transistor liquid crystal display (Thin Film Transistor-Liquid Crystal Display, TFT-LCD) mainly includes a gate driver and a data driver, wherein the gate driver converts an input clock signal through a shift register and applies the converted clock signal to a gate line of a liquid crystal display panel.
In the conventional display panel, the temperature of the display substrate cannot be detected, and based on the basic characteristics of the thin film transistors (Thin Film Transistor-Liquid Crystal Display, TFT), the leakage current flowing through the TFT changes with the change of temperature, the temperature increases, and the leakage current increases. However, when the leakage current increases beyond a certain threshold value, the pixel electrode is charged through the TFT, which results in charging the pixel electrode that should not be charged, that is, a crosstalk phenomenon, and thus causes a display failure.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art, and provides a detection circuit, a display substrate, a display panel and a display device which can detect the temperature of a display panel.
The technical scheme adopted for solving the technical problem of the invention is a detection circuit, which comprises: the device comprises a current control module and a temperature detection module, wherein the current control module is connected with the temperature detection module;
the temperature detection module is used for generating leakage current under the control of the current control module and acquiring the temperature of the display substrate according to the leakage current.
Wherein, the current control module includes: a switching transistor;
the control electrode of the switching transistor is connected with the first signal end, the first electrode is connected with the second signal end, and the second electrode is connected with the temperature detection module.
Wherein, the temperature detection module includes: the sensing resistor, the first resistor, the second resistor, the third resistor, the fourth resistor and the differential amplifier;
one end of the sensing resistor is connected with the first node, and the other end of the sensing resistor is connected with the second node;
one end of the first resistor is connected with a first node, and the other end of the first resistor is connected with a third node;
one end of the second resistor is connected with the reference signal end, and the other end of the second resistor is connected with a third node;
one end of the third resistor is connected with the second node, and the other end of the third resistor is connected with a fourth node;
one end of the fourth resistor is connected with the output signal end, and the other end of the fourth resistor is connected with a fourth node;
and the non-inverting input end of the differential amplifier is connected with the third node, the inverting input end of the differential amplifier is connected with the fourth node, and the output end of the differential amplifier is connected with the output signal end.
The resistance of the first resistor is equal to that of the third resistor, and the resistance of the second resistor is equal to that of the fourth resistor.
Wherein the detection circuit further comprises: an adjustment module; the adjusting module is connected with the temperature detecting module and the current control module;
the temperature detection module is also used for providing output voltage for the adjustment module;
the adjusting module is used for adjusting the current control module according to the output voltage output by the temperature detection module.
Wherein, the adjustment module includes: a fifth resistor, a sixth resistor, and an inverter;
one end of the fifth resistor is connected with the temperature detection module, and the other end of the fifth resistor is connected with the inverting input end of the inverter;
one end of the sixth resistor is connected with the inverting input end of the inverter, and the other end of the sixth resistor is connected with the current control module;
the non-inverting input end of the phase inverter is grounded, and the output end of the phase inverter is connected with the current control module.
As another technical scheme, the invention further provides a display substrate, which comprises the detection circuit.
Wherein the display substrate is connected with the driving part;
the detection circuit of claim 5 or 6 is arranged at one end of the display substrate close to the driving part;
the detection circuit according to any one of claims 1 to 4 is provided at an end of the display substrate remote from the driving portion.
As another technical scheme, the invention further provides a display panel, which comprises the display substrate.
As another technical scheme, the invention also provides a display device, which comprises the display panel.
In a detection circuit, a display substrate, a display panel, and a display device of the present invention, the detection circuit includes: the current control module is connected with the temperature detection module; the temperature detection module is used for generating leakage current under the control of the current control module and acquiring the temperature of the display substrate according to the leakage current. The detection circuit can acquire the temperature of the display substrate according to the magnitude of the leakage current.
Drawings
Fig. 1 is a schematic diagram of a detection circuit according to embodiment 1 of the present invention;
fig. 2 is a schematic diagram of a detection circuit according to embodiment 2 of the present invention;
fig. 3 is a schematic structural diagram of a display substrate according to embodiment 3 of the present invention; the method comprises the steps of carrying out a first treatment on the surface of the
Wherein, the reference numerals are as follows: part1, a temperature detection module; part2, a current control module; m1, a switching transistor; VGL_Reg, a first signal end; VGL, the second signal end; rsen, sense resistance; r1, a first resistor; r2, a second resistor; r3, a third resistor; r4, a fourth resistor; VREF, a reference signal end; vout, output signal end; A. a first node; B. a second node; C. a third node; D. a fourth node; part 3, an adjusting module; r5, a fifth resistor; r6, a sixth resistor; 1. a display substrate; 2. a driving section; e1, E2, detection circuitry; s1, a differential amplifier; s2, an inverter.
Detailed Description
The present invention will be described in further detail below with reference to the drawings and detailed description for the purpose of better understanding of the technical solution of the present invention to those skilled in the art.
Example 1:
referring to fig. 1, the present embodiment provides a detection circuit, including: the device comprises a current control module Part2 and a temperature detection module Part1, wherein the current control module Part2 is connected with the temperature detection module Part 1; the temperature detection module Part1 is used for generating leakage current under the control of the current control module Part2, and acquiring the temperature of the display substrate according to the leakage current.
Wherein, the current control module Part2 includes: a switching transistor M1; the control electrode of the switching transistor M1 is connected to the first signal terminal vgl_reg, the first electrode is connected to the second signal terminal VGL, and the second electrode is connected to the temperature detection module Part 1.
Wherein, the temperature detection module includes: the sensing resistor Rsen, the first resistor R1, the second resistor R2, the third resistor R3, the fourth resistor R4 and the differential amplifier S1; one end of the sensing resistor Rsen is connected with the first node A, and the other end of the sensing resistor Rsen is connected with the second node B; one end of the first resistor R1 is connected with the first node A, and the other end of the first resistor R1 is connected with the third node C; one end of the second resistor R2 is connected with the reference signal end VREF, and the other end of the second resistor R2 is connected with the third node C; one end of a third resistor R3 is connected with the second node B, and the other end of the third resistor R3 is connected with a fourth node D; one end of a fourth resistor R4 is connected with the output signal end Vout, and the other end of the fourth resistor R4 is connected with a fourth node D; the noninverting input end of the differential amplifier S1 is connected with the third node C, the inverting input end of the differential amplifier S1 is connected with the fourth node D, and the output end of the differential amplifier S1 is connected with the output signal end.
The resistance of the first resistor R1 is equal to the resistance of the third resistor R3, and the resistance of the second resistor R2 is equal to the resistance of the fourth resistor R4.
The resistance values of the first resistor R1, the second resistor R2, the third resistor R3, and the fourth resistor R4 are all much larger than the resistance value of the sensing resistor Rsen.
The calculation method for obtaining leakage current by the detection circuit of the embodiment is as follows:
∵I R1 ＝I R2 ,I R3 ＝I R4
∵V - ＝V + ,R 1 ＝R 3 ,R 2 ＝R 4
∴R 2 (V 1 -V - )-R 1 (V REF -V - )＝0(1)
R 2 (V 2 -V 1 )-R 3 (V out -V - )＝0(2)
∵V 2 -V 1 ＝I Rsen ×R sen
wherein the voltage of the first node A is V 1 The voltage of the second node B is V 2 The voltage of the third node C is V + The voltage of the fourth node D is V - Isen is the current flowing through the sense resistor Rsen, and since the sense resistor Rsen is connected in series with the switching transistor M1, the leakage current flowing through the switching transistor M1 is Isen.
As can be seen from the above calculation, the resistance values of the first resistor R1, the second resistor R2 and the sensing resistor Rsen are constant values, and the reference voltage V outputted from the reference signal terminal REF The output voltage Vout at the output signal terminal is therefore of a known value, which is only related to the leakage current Isen of the switching transistor M1. That is, the magnitude of the leakage current Isen of the switching transistor M1 can be calculated from the above calculation formula by the output voltage Vout, and the temperature of the display substrate at the position of the detection circuit can be obtained from the correspondence table of the current and the temperature shown in table 1.
TABLE 1 correspondence between current and temperature
As shown in table 1, examples 1 to 3 are three sets of parallel experiments, and positions 1 to 3 are any three positions on the display substrate, and the temperature at a position on the display panel corresponding to the leakage current at the position on the display substrate can be obtained through table 1. For example, when the leakage current at the position 1 is 12.28pA, the temperature at the position 1 on the display substrate is 25 ℃, and the temperatures at the other positions can be obtained in the same manner, which is not described herein.
The detection circuit of the present embodiment includes: the device comprises a current control module Part2 and a temperature detection module Part1, wherein the current control module Part2 is connected with the temperature detection module Part 1; the temperature detection module Part1 is used for generating leakage current under the control of the current control module Part2 and obtaining the temperature of the display substrate according to the leakage current.
Example 2:
referring to fig. 2, the present embodiment provides a detection circuit. It is different from embodiment 1 in that the detection circuit further includes: and an adjustment module Part 3.
The adjusting module Part 3 is connected with the temperature detecting module Part1 and the current control module Part 2; the temperature detection module Part1 is also used for providing output voltage for the adjustment module Part 3; the adjusting module Part 3 is configured to adjust the current control module Part2 according to the output voltage output by the temperature detecting module Part 1.
Wherein, the adjustment module includes: a fifth resistor R5, a sixth resistor R6, and an inverter S2; one end of a fifth resistor R5 is connected with the temperature detection module Part1, and the other end of the fifth resistor R5 is connected with the inverting input end of the inverter S2; one end of a sixth resistor R6 is connected with the inverting input end of the inverter S2, and the other end of the sixth resistor R6 is connected with the current control module Part 2; the non-inverting input end of the inverter S2 is grounded, and the output end of the inverter S is connected with the current control module Part 2.
Preferably, the resistance of the fifth resistor R5 is equal to the resistance of the sixth resistor R6.
It should be noted that, when the resistance of the fifth resistor R5 is equal to the resistance of the sixth resistor R6, the first signal terminal vgl_reg connected to the output terminal of the inverter S2 and the first signal terminal vgl_reg in the current control module Part2 are the same signal terminal.
The method for adjusting the leakage current by the detection circuit of the embodiment is as follows:
∵I R5 +I R6 ＝0
as can be seen from the above calculation, the resistance values of the first resistor R1, the second resistor R2, the fifth resistor R5, the sixth resistor R6 and the sensing resistor Rsen are constant values, and the reference voltage V outputted from the reference signal terminal REF The voltage vgl_reg at the first signal terminal is therefore a known value, which is only related to the leakage current Isen of the switching transistor M1. That is, when the leakage current Isen increases, V 2 -V 1 The value of the output voltage Vout at the output signal terminal increases, so that the polarity of the voltage vgl_reg at the first signal terminal is still negative, but the absolute value of the voltage vgl_reg at the first signal terminal increases, that is, the voltage vgl_reg at the first signal terminal becomes smaller, and the voltage vgl_reg at the first signal terminal controls whether the control electrode of the switching transistor M1 is turned on or not, so that the smaller the voltage vgl_reg at the first signal terminal, the more tightly the switching transistor M1 is turned off, thereby reducing the leakage current flowing through the switching transistor M1, and at this time, the voltage vgl_reg at the first signal terminal in the detection circuit presents a dynamic adjustment state.
Compared with the detection circuit of embodiment 1, the detection circuit of the embodiment further comprises an adjusting module Part 3, wherein the adjusting module Part 3 is connected with the temperature detection module Part1 and the current control module Part 2; the adjusting module Part 3 is configured to adjust the current control module Part2 according to the output voltage output by the temperature detecting module Part 1. The detection circuit not only can obtain the temperature of the display substrate according to the magnitude of leakage current; meanwhile, the voltage VGL_Reg of the first signal end can be dynamically adjusted by detecting leakage current in the circuit.
Example 3:
referring to fig. 3, the present embodiment provides a display substrate 1, which includes the detection circuit of embodiment 1 or embodiment 2.
The display substrate 1 includes a plurality of detection circuits, and the detection circuits are disposed in a peripheral region of the display substrate 1, that is, in a non-display region. The driving portion 2 is disposed in the non-display area of the display substrate 1, the edge of the display substrate 1 where the detection circuit is disposed is perpendicular to the edge of the display substrate 1 where the driving portion 2 is disposed, and the detection circuits are disposed in pairs on the edge of the display substrate 1, for example, as shown in fig. 3, the detection circuit E2 is disposed at a position near the driving portion 2 on the left side in fig. 3, and the detection circuit E2 is also disposed at a position on the right side in fig. 3 on the same horizontal line as the detection circuit E2. It should be noted that, the current control module Part2 and the gate line of the GOA substrate in the detection circuit are both located on the display substrate 1, and the temperature detection module Part1 and the adjustment module Part 3 in the detection circuit are both located in the driving portion 2.
Wherein the detection circuit at the end of the display substrate 1 near the driving part2 adopts the detection circuit E2 of embodiment 2; the detection circuit E1 of embodiment 1 is employed as the detection circuit at the remaining position of the display substrate 1.
The driving portion 2 is located on one side of the display substrate 1, and as seen in fig. 3, the end of the display substrate 1 close to the driving portion 2 is referred to as the upper side in fig. 3, and the end of the display substrate 1 away from the driving portion 2 is referred to as the lower side in fig. 3.
The detection circuit E2 is configured to dynamically adjust the voltage vgl_reg of the first signal terminal according to the magnitude of the leakage current, so that the leakage current can be reduced by the voltage vgl_reg of the first signal terminal, and the detection circuit E1 can obtain the temperature of the position of the detection circuit E1 on the display substrate 1 according to the leakage current flowing through the detection circuit E1.
When the detection circuit adopts the detection circuit E1, the detection circuit E1 and the GOA circuit are independently arranged on the display substrate, namely, no connection relation exists between the detection circuit E1 and the GOA circuit; when the detection circuit adopts the detection circuit E2, the output end of the detection circuit E2 is connected to the input end of the GOA circuit, so as to input the output voltage vgl_reg output by the detection circuit E2 to the GOA circuit, and the output voltage vgl_reg is used as an off signal of a switching transistor in the GOA circuit.
Preferably, the display substrate 1 of the present embodiment includes a display substrate row driving (Gate Driver on Array, GOA) circuit, and the design and manufacturing process of the switching transistor M1 in the detection circuit and the thin film transistor in the GOA circuit are the same. It should be noted that, the voltage vgl_reg of the first signal terminal in the detection circuit is the voltage of the GOA circuit, so the display substrate of the embodiment can dynamically adjust the voltage of the GOA circuit according to the temperature of the display substrate detected by the detection circuit.
The display substrate of this embodiment includes the detection circuits of embodiment 1 and embodiment 2, and the detailed description can refer to the detection circuits of embodiment 1 and embodiment 2, and will not be repeated here.
The display substrate of the present embodiment includes the detection circuits of embodiment 1 and embodiment 2, and the display substrate not only can obtain the temperature of the display substrate according to the magnitude of the leakage current; meanwhile, the voltage VGL_Reg of the first signal end can be dynamically adjusted by detecting leakage current in the circuit.
Example 4:
the present embodiment provides a display panel including the display substrate of embodiment 3.
The display panel further includes a driving unit 2, and the driving unit 2 is connected to the display substrate 1.
The display panel of the embodiment not only can obtain the temperature of the display substrate according to the magnitude of the leakage current; meanwhile, the voltage VGL_Reg of the first signal end can be dynamically adjusted by detecting leakage current in the circuit.
Example 5:
the present embodiment provides a display device including the display panel of embodiment 4. The display device may be: any product or component with display function such as a liquid crystal display panel, electronic paper, mobile phone, tablet computer, television, display, notebook computer, digital photo frame, navigator and the like.
The display device of the embodiment not only can obtain the temperature of the display substrate according to the magnitude of the leakage current; meanwhile, the voltage VGL_Reg of the first signal end can be dynamically adjusted by detecting leakage current in the circuit.
It is to be understood that the above embodiments are merely illustrative of the application of the principles of the present invention, but not in limitation thereof. Various modifications and improvements may be made by those skilled in the art without departing from the spirit and substance of the invention, and are also considered to be within the scope of the invention.
Claims (7)
1. A detection circuit, comprising: the device comprises a current control module and a temperature detection module, wherein the current control module is connected with the temperature detection module;
the temperature detection module is used for generating leakage current under the control of the current control module and acquiring the temperature of the display substrate according to the leakage current;
the current control module includes: a switching transistor;
the control electrode of the switching transistor is connected with a first signal end, the first electrode is connected with a second signal end, and the second electrode is connected with the temperature detection module;
the temperature detection module includes: the sensing resistor, the first resistor, the second resistor, the third resistor, the fourth resistor and the differential amplifier;
one end of the sensing resistor is connected with the first node, and the other end of the sensing resistor is connected with the second node;
one end of the first resistor is connected with a first node, and the other end of the first resistor is connected with a third node;
one end of the second resistor is connected with the reference signal end, and the other end of the second resistor is connected with a third node;
one end of the third resistor is connected with the second node, and the other end of the third resistor is connected with a fourth node;
one end of the fourth resistor is connected with the output signal end, and the other end of the fourth resistor is connected with a fourth node;
and the non-inverting input end of the differential amplifier is connected with the third node, the inverting input end of the differential amplifier is connected with the fourth node, and the output end of the differential amplifier is connected with the output signal end.
2. The detection circuit of claim 1, wherein the first resistor has a resistance equal to a resistance of the third resistor, and wherein the second resistor has a resistance equal to a resistance of the fourth resistor.
3. The detection circuit of claim 1, further comprising: an adjustment module; the adjusting module is connected with the temperature detecting module and the current control module;
the temperature detection module is also used for providing output voltage for the adjustment module;
the adjusting module is used for adjusting the current control module according to the output voltage output by the temperature detection module.
4. A detection circuit according to claim 3, wherein the adjustment module comprises: a fifth resistor, a sixth resistor, and an inverter;
one end of the fifth resistor is connected with the temperature detection module, and the other end of the fifth resistor is connected with the inverting input end of the inverter;
one end of the sixth resistor is connected with the inverting input end of the inverter, and the other end of the sixth resistor is connected with the current control module;
the non-inverting input end of the phase inverter is grounded, and the output end of the phase inverter is connected with the current control module.
5. A display substrate, characterized in that a driving part is arranged in a non-display area of the display substrate, and the non-display area of the display substrate comprises a plurality of detection circuits;
the detection circuit of claim 3 or 4 is used as the detection circuit at one end of the display substrate near the driving part;
the detection circuit of claim 1 or 2 is used for a detection circuit located at the remaining position of the display substrate.
6. A display panel comprising the display substrate of claim 5.
7. A display device comprising the display panel of claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610806029.8A CN106226934B (en) | 2016-09-06 | 2016-09-06 | Detection circuit, display substrate, display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610806029.8A CN106226934B (en) | 2016-09-06 | 2016-09-06 | Detection circuit, display substrate, display panel and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106226934A CN106226934A (en) | 2016-12-14 |
| CN106226934B true CN106226934B (en) | 2023-06-23 |
Family
ID=58075313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610806029.8A Active CN106226934B (en) | 2016-09-06 | 2016-09-06 | Detection circuit, display substrate, display panel and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106226934B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020021030A (en) * | 2018-08-03 | 2020-02-06 | 堺ディスプレイプロダクト株式会社 | Display panel and method for driving the same |
| CN111081195A (en) * | 2019-11-28 | 2020-04-28 | Tcl华星光电技术有限公司 | Voltage regulating circuit, display panel and high-temperature reliability testing method thereof |
| CN112435621A (en) * | 2020-11-24 | 2021-03-02 | 京东方科技集团股份有限公司 | Voltage control circuit, voltage output control method and display device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1948974A (en) * | 2005-10-13 | 2007-04-18 | 松下电器产业株式会社 | Semiconductor integrated circuit device and electronic equipment |
| JP2009139130A (en) * | 2007-12-04 | 2009-06-25 | Ricoh Co Ltd | Temperature detection circuit |
| CN102037401A (en) * | 2008-06-11 | 2011-04-27 | 夏普株式会社 | Liquid crystal temperature sensor, temperature sensing method by liquid crystal temperature sensor, liquid crystal device and liquid crystal device drive method |
| CN103018531A (en) * | 2012-12-11 | 2013-04-03 | 京东方科技集团股份有限公司 | Current detection circuit, temperature compensation device and display device |
| CN206057738U (en) * | 2016-09-06 | 2017-03-29 | 合肥京东方光电科技有限公司 | A kind of detection circuit, display base plate, display floater, display device |
-
2016
- 2016-09-06 CN CN201610806029.8A patent/CN106226934B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1948974A (en) * | 2005-10-13 | 2007-04-18 | 松下电器产业株式会社 | Semiconductor integrated circuit device and electronic equipment |
| JP2009139130A (en) * | 2007-12-04 | 2009-06-25 | Ricoh Co Ltd | Temperature detection circuit |
| CN102037401A (en) * | 2008-06-11 | 2011-04-27 | 夏普株式会社 | Liquid crystal temperature sensor, temperature sensing method by liquid crystal temperature sensor, liquid crystal device and liquid crystal device drive method |
| CN103018531A (en) * | 2012-12-11 | 2013-04-03 | 京东方科技集团股份有限公司 | Current detection circuit, temperature compensation device and display device |
| CN206057738U (en) * | 2016-09-06 | 2017-03-29 | 合肥京东方光电科技有限公司 | A kind of detection circuit, display base plate, display floater, display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106226934A (en) | 2016-12-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108665861B (en) | Display driving device, display driving method and display device | |
| US11380282B2 (en) | Gamma voltage generating circuit, driver circuit and display device | |
| JP4560031B2 (en) | Touch panel LCD | |
| US20080303763A1 (en) | Liquid crystal display device and method for driving the same | |
| US20110102401A1 (en) | Liquid crystal display device and driving method thereof | |
| US20070146276A1 (en) | Active matrix liquid crystal display and driving method thereof | |
| US9275569B2 (en) | Flat panel display, threshold voltage sensing circuit, and method for sensing threshold voltage | |
| TWI482428B (en) | amplifying circuit | |
| CN106226934B (en) | Detection circuit, display substrate, display panel and display device | |
| US20110057902A1 (en) | Touch sensor and liquid crystal display having the same | |
| US20160358579A1 (en) | A voltage compensation method, a voltage compensation device and a display device | |
| TW200826040A (en) | Driving circuit for liquid crystal panel and liquid crystal display using same | |
| KR100996217B1 (en) | Display apparatus and method for driving the same | |
| US8106863B2 (en) | Common voltage generating circuit having square wave generating unit and liquid crystal display using same | |
| TWI714401B (en) | Touch display device, common driving circuit, and driving method | |
| US8115880B2 (en) | Liquid crystal display panel and display apparatus | |
| US20180095579A1 (en) | Pixel circuit, driving method thereof, substrate, display panel and electronic device | |
| US11211027B2 (en) | Driving circuit of display panel, driving method thereof, and display panel | |
| WO2020087645A1 (en) | Signal control circuit, and display apparatus containing signal control circuit | |
| CN107527601B (en) | Overcurrent protection circuit and method of GOA circuit and liquid crystal display device | |
| US20130002603A1 (en) | Sensor module and display device | |
| US9257087B2 (en) | Display devices and pixel driving methods therefor | |
| CN114822439B (en) | Display driving circuit, array substrate, display panel and display | |
| US9412322B2 (en) | Liquid crystal display device and method for driving same | |
| US20070070013A1 (en) | Common voltage modification circuit and the method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |