WO2005078697A1 - 表示装置およびそれを備えた自動車両 - Google Patents
表示装置およびそれを備えた自動車両 Download PDFInfo
- Publication number
- WO2005078697A1 WO2005078697A1 PCT/JP2005/002130 JP2005002130W WO2005078697A1 WO 2005078697 A1 WO2005078697 A1 WO 2005078697A1 JP 2005002130 W JP2005002130 W JP 2005002130W WO 2005078697 A1 WO2005078697 A1 WO 2005078697A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- display
- signal
- display device
- display unit
- vertical scanning
- Prior art date
Links
- 239000004973 liquid crystal related substance Substances 0.000 claims description 53
- 239000000758 substrate Substances 0.000 claims description 20
- 239000003990 capacitor Substances 0.000 description 18
- 239000011159 matrix material Substances 0.000 description 14
- 238000003780 insertion Methods 0.000 description 13
- 230000037431 insertion Effects 0.000 description 13
- 238000000034 method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 206010047571 Visual impairment Diseases 0.000 description 5
- 230000003071 parasitic effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002123 temporal effect Effects 0.000 description 3
- 239000010409 thin film Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3688—Systems comprising multiple parts or multiple output devices (not client-server), e.g. detachable faceplates, key fobs or multiple output screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
- B60K35/21—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
- B60K35/213—Virtual instruments
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3667—Display of a road map
-
- 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
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
- G09G3/3666—Control of matrices with row and column drivers using an active matrix with the matrix divided into sections
-
- 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
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3674—Details of drivers for scan electrodes
- G09G3/3677—Details of drivers for scan electrodes suitable for active matrices only
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/04—Partial updating of the display screen
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0261—Improving the quality of display appearance in the context of movement of objects on the screen or movement of the observer relative to the screen
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2340/00—Aspects of display data processing
- G09G2340/14—Solving problems related to the presentation of information to be displayed
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/02—Graphics controller able to handle multiple formats, e.g. input or output formats
Definitions
- the present invention relates to a display device and a motor vehicle including the same, and more particularly, to an active matrix type display device and a motor vehicle including the same.
- liquid crystal display devices which are thin and have low power consumption, have been used in OA devices such as personal computers and AV devices such as video cameras, taking advantage of such features.
- active matrix type liquid crystal display devices are widely used because they can perform high-definition display.
- the liquid crystal display device 500 has a display panel 510 and a drive circuit group 520 for driving the display panel 510.
- the display panel 510 includes a plurality of scanning lines (gate lines) 2 arranged in parallel with each other, and a plurality of signal lines (source lines) 4 arranged in parallel with each other in a direction intersecting the plurality of scanning lines 2. It has a plurality of TFTs (thin film transistors) 6 each connected to one of the scanning lines 2 and one of the signal lines 4, and a plurality of pixel capacitors 8 each connected to one TFT.
- Each pixel capacitor 8 is composed of, for example, a liquid crystal capacitor and an auxiliary capacitor provided in parallel with the liquid crystal capacitor.
- the plurality of pixel capacitors are arranged in a matrix, and each corresponds to a pixel of the display panel.
- the liquid crystal capacitance is provided, for example, on the active matrix substrate on which the scanning lines 2, the signal lines 4, and the TFTs 6 are formed, and on a counter substrate facing the active matrix substrate so as to face the pixel electrodes. And a liquid crystal layer between the pixel electrode and the counter electrode.
- the drive circuit group 520 includes a scan line drive circuit 22 that supplies a scan signal to the scan line 2, and a signal line drive circuit 24 that supplies a data signal to the signal line.
- Scanning line drive circuit 22 Power Connected to the selected one of the scanning lines 2 by the supplied scanning signal.
- the activated TFT 6 becomes active.
- the data signal supplied from the signal line drive circuit 24 is written to the pixel (the pixel capacitor 8 connected to the active TFT 6) via the signal line 4. By performing this operation on all the scanning lines, an image is displayed.
- Patent Documents 1 and 2 disclose a method in which two scanning line driving circuits are provided.
- FIG. 6 shows a liquid crystal display device 600 disclosed in Patent Document 1.
- the drive circuit group 620 included in the liquid crystal display device 600 has two scan line drive circuits 22 provided on the right and left sides of the display panel 610, and the scan line 2 has not only one side but also both sides. A scanning signal is input. Therefore, signal delay and waveform rounding due to the wiring resistance and parasitic capacitance of the scanning line 2 are suppressed, and the occurrence of display unevenness is suppressed.
- FIG. 7 shows a liquid crystal display device 700 disclosed in Patent Document 2.
- a driving circuit group 720 included in the liquid crystal display device 700 has two scanning line driving circuits 22 provided on the right and left sides of the display panel 710, and the scanning line 2 of the display panel 710 is located at the center of the display panel 710. It is divided near.
- a scanning signal is input to the right scanning line 2 from the right scanning line driving circuit 22, and a scanning signal is input to the left scanning line 2 from the left scanning line driving circuit 22. Therefore, similarly to the liquid crystal display device 600, signal delay and waveform rounding are suppressed, and occurrence of display unevenness is suppressed.
- Patent Document 1 Japanese Utility Model Publication No. 64-40823
- Patent Document 2 Japanese Patent Application Laid-Open No. 2002-23683
- the present invention has been made in view of the above problems, and an object of the present invention is to provide a display device which is low in power consumption and is suitable for displaying multi-contents, and an automotive vehicle including the same. is there.
- a display device is a display device including a display panel and a driving circuit group for driving the display panel, wherein the display panel includes a first display unit and a second display unit.
- the first display unit includes a plurality of first scanning lines, a plurality of first signal lines, and one of the plurality of first scanning lines and one of the plurality of first signal lines, respectively.
- a plurality of first switching elements connected to one of the plurality of first switching elements, and a plurality of first pixels each connected to each of the plurality of first switching elements.
- a plurality of second scanning lines, a plurality of second signal lines, and a plurality of second signal lines respectively connected to one of the plurality of second scanning lines and one of the plurality of second signal lines.
- a first scan line drive circuit that supplies a first scan signal to the plurality of first scan lines; and a first data signal to the plurality of first signal lines.
- a first signal line driving circuit, a second scanning line driving circuit that supplies a second scanning signal to the plurality of second scanning lines, and a second signal line that supplies a second data signal to the plurality of second signal lines.
- the first vertical scanning frequency and the second vertical scanning frequency are set according to types of information displayed on each of the first display unit and the second display unit. Have been.
- the display panel is a liquid crystal display panel having a pair of substrates and a liquid crystal layer provided between the pair of substrates.
- the first signal line drive circuit is provided within one vertical scanning period.
- a first black display signal corresponding to black display is supplied to the plurality of first pixels at a timing different from the timing of supplying the first data signal, and the plurality of first pixels are supplied for one vertical scanning period.
- the first data signal is held for a predetermined first time of the time corresponding to the above, and the first black display signal is held for a predetermined second time.
- the second signal line drive circuit performs black timing at a timing different from a timing at which the second data signal is supplied to the plurality of second pixels within one vertical scanning period.
- a second black display signal corresponding to display is supplied, and the plurality of second pixels are in a state in which the second data signal is held for a predetermined third time of a time corresponding to one vertical scanning period, The second black display signal is held for a predetermined fourth time.
- the display device according to the present invention is a display device for an instrument panel mounted on a motor vehicle.
- the first display unit displays at least a speed and a Z of the motor vehicle or a rotation speed of a motor of the motor vehicle, and the first vertical scanning frequency is the second vertical scanning frequency. Higher than the scanning frequency.
- the display panel includes the first display unit and the first display unit.
- It has a touch sensor selectively provided on one of the two display units.
- At least a part of the drive circuit group is formed directly on a substrate of the display panel.
- the motor vehicle according to the present invention includes an instrument panel including the display device having the above-described configuration, thereby achieving the above object.
- the display panel since the display panel has the first display unit and the second display unit, the scanning lines are shorter than in the configuration in which the display panel has only a single display unit. can do. Therefore, it is possible to suppress the delay and waveform distortion of the scanning signal due to the wiring resistance and the parasitic capacitance of the scanning line, and it is possible to suppress display unevenness. Further, since the display device according to the present invention includes the scanning line driving circuit and the signal line driving circuit for each of the first display portion and the second display portion of the display panel, the first display portion and the second display portion are provided. Different pieces of information can be displayed in different sections, and a plurality of pieces of information can be displayed simultaneously.
- the road group can drive the first display section and the second display section at different vertical scanning frequencies, power consumption can be reduced by relatively lowering one of the vertical scanning frequencies.
- the display device according to the present invention includes the scanning line driving circuit and the signal line driving circuit for each of the first display unit and the second display unit, the first display unit and the second display unit are connected to each other. It can be driven by different driving methods. Therefore, the first display unit and the second display unit can be driven by a driving method most suitable for the information displayed on each of them, and a plurality of pieces of information can be displayed simultaneously and suitably.
- FIG. 1 is a diagram schematically showing a liquid crystal display device according to the present invention.
- FIG. 2 (a) is a graph showing a temporal change of luminance in a liquid crystal display device performing a hold type display, and (b) is a graph illustrating a temporal change of luminance in a CRT performing an impulse type display. (C) is a graph showing a temporal change in luminance in a liquid crystal display device performing black insertion driving (pseudo-impulse driving).
- FIG. 3 is a diagram showing an embodiment in which the liquid crystal display device according to the present invention is used as a display device for an instrument panel mounted on a motor vehicle.
- FIG. 4 is a view showing another embodiment in which the liquid crystal display device according to the present invention is used as a display device for an instrument panel mounted on a motor vehicle.
- FIG. 5 is a diagram schematically showing a conventional active matrix type liquid crystal display device.
- FIG. 6 is a diagram schematically showing a conventional active matrix type liquid crystal display device.
- FIG. 7 is a diagram schematically showing a conventional active matrix type liquid crystal display device.
- FIG. 1 schematically shows a configuration of a liquid crystal display device 100 according to the present embodiment.
- the liquid crystal display device 100 includes a display panel 10 and a drive circuit group 20 that drives the display panel 10.
- the display panel 10 has a first display unit 10a and a second display unit 10b.
- the first display unit 10a and the second display unit 10b have substantially the same size as each other, and are arranged along the horizontal direction.
- the first display unit 10a includes a plurality of first scanning lines 2a arranged in parallel with each other, and a plurality of first signal lines 4a arranged in parallel with each other in a direction crossing the first scanning lines 2a.
- a plurality of first TFTs (thin film transistors) 6a each connected to one of the plurality of first scanning lines 2a and one of the plurality of first signal lines 4a, and a plurality of It has a plurality of first pixel capacitors 8a connected to each other.
- the second display unit 10b includes a plurality of second scanning lines 2b arranged in parallel with each other, and a plurality of second signal lines 4b arranged in parallel with each other in a direction intersecting the second scanning lines 2b. Are respectively connected to one of the plurality of second scan lines 2b and one of the plurality of second signal lines 4b.
- a plurality of second TFTs 6b, and a plurality of second pixel capacitors 8b each connected to each of the plurality of second TFTs 6b.
- Each of the first pixel capacitor 8a and the second pixel capacitor 8b is composed of, for example, a liquid crystal capacitor and an auxiliary capacitor provided in parallel with the liquid crystal capacitor.
- the plurality of first pixel capacitors 8a and the plurality of second pixel capacitors 8b are arranged in a matrix, each of which corresponds to a pixel of a display panel.
- a pixel corresponding to the first pixel capacitor 8a is called a “first pixel” of the first display unit 10a
- a pixel corresponding to the second pixel capacitor 8b is called a “second pixel” of the second display unit 10b.
- the liquid crystal capacitance includes, for example, a pixel electrode formed on an active matrix substrate, a counter electrode provided on a counter substrate facing the active matrix substrate so as to face the pixel electrode, a pixel electrode and a counter electrode. And a liquid crystal layer between them (both not shown).
- the pair of electrodes for applying a voltage to the liquid crystal layer need not necessarily be provided on different substrates, but may be provided on the same substrate as in an IPS (In-Plane Switching) system.
- FIG. 1 also shows, for the sake of simplicity, the distance between the rightmost pixel of the first display unit 10a and the leftmost pixel of the second display unit 10b. Is the same as the pixel pitch in each display unit.
- the drive circuit group 20 includes a first scan line drive circuit 22a that supplies a scan signal to the first scan line 2a, a first signal line drive circuit 24a that supplies a data signal to the first signal line 4a, It has a second scanning line driving circuit 22b for supplying a scanning signal to the second scanning line 2b and a second signal line driving circuit 24b for supplying a data signal to the second signal line 4b, and the first display section 10a And the second display section 10b can be driven at different vertical scanning frequencies. “Vertical scanning frequency” represents the number of times the entire screen of the display unit is rewritten in one second, and is also called a refresh rate.
- the liquid crystal display device 100 is configured such that the display panel 100 includes the first display unit.
- the scanning lines can be shortened as compared with a configuration in which the display panel has only a single display section.
- the length of the scanning lines can be reduced to about half. For this reason, it is possible to suppress a delay and a rounding of a scanning signal due to a wiring resistance and a parasitic capacitance of a scanning line, and it is possible to suppress display unevenness.
- the liquid crystal display device 100 includes a scanning line driving circuit and a signal line driving circuit for each of the first display section 10a and the second display section 10b of the display panel 10, so that the first display section is provided. Different information can be displayed in the section 10a and the second display section 10b, and a plurality of pieces of information can be displayed at the same time.
- the first display unit 10a and the second display unit 10b may cooperatively display one piece of information. For example, one image may be displayed on the first display unit 10a and the second display unit 10b cooperatively.
- the drive circuit group 20 included in the liquid crystal display device 100 can drive the first display unit 10a and the second display unit 10b at different vertical scanning frequencies, so that the first display unit 10a and the second By setting each vertical scanning frequency according to the type of information displayed on each of the display units 10b, low power consumption can be achieved. For example, when displaying a still image, there is no display problem when driven at a lower vertical scanning frequency than when displaying a moving image. Therefore, when displaying a moving image on the first display unit 10a and displaying a still image on the second display unit 10b, the vertical scanning frequency of the second display unit 10b is higher than the vertical scanning frequency of the first display unit 10a (for example, 60 Hz). When the second display unit 10b is driven at a low vertical scanning frequency (for example, 10 Hz), the power consumption can be reduced.
- a low vertical scanning frequency for example, 10 Hz
- various control signals input to the first scanning line driving circuit 22a and the first signal line driving circuit 24a are used.
- Signal (including a clock signal) may be different from the frequencies of various control signals input to the second scanning line driving circuit 22b and the second signal line driving circuit 24b! /.
- the liquid crystal display device 100 includes a scanning line driving circuit and a signal line driving circuit for each of the first display section 10a and the second display section 10b of the display panel 10, so that the first display section is provided.
- the unit 10a and the second display unit 10b can be driven by different driving methods. Therefore, the first display unit 10a and the second display unit 10b can be driven by a driving method most suitable for the information displayed on each of them, and a plurality of pieces of information can be displayed simultaneously and suitably.
- Black insertion drive is a driving method for performing an impulse type display similar to a CRT in a liquid crystal display device which basically performs a hold type display. It is also called “similar impulse drive”. By performing the black insertion driving, it is possible to suppress the afterimage (blur of the moving image).
- a new data signal is written in a luminance corresponding to a data signal written in one vertical scanning period in the next vertical scanning period. Hold-type display that lasts until is performed.
- the CRT performs an impulse type display in which light emission is performed only for a part of one vertical scanning period.
- One vertical scanning period corresponds to one frame in the case of non-interlaced driving, and corresponds to one field in the case of interlaced driving in which one frame is divided into a plurality of fields.
- black display is performed at a timing different from the timing at which a data signal is supplied from the first signal line driving circuit 24a to the first pixel within one vertical scanning period. Supply a corresponding black display signal. Then, the first pixel is set to a state in which the data signal is held for a predetermined time in the time corresponding to one vertical scanning period, and to a state in which the black display signal is held for a predetermined time in the remaining time. In this way, as shown in FIG. 2 (c), a pseudo impulse-type display can be performed, and the afterimage feeling / blur of the moving image can be suppressed.
- the ratio between the time during which the data signal is held and the time during which the black display signal is held may be appropriately set according to the vertical scanning frequency, the type of information to be displayed, the use of the liquid crystal display device, and the like. From the viewpoint of sufficiently suppressing the afterimage feeling and the blurring of the moving image, the time during which the black display signal is held is preferably 1Z4 or more, which is the time corresponding to one vertical scanning period.
- FIG. 2 (c) shows a case where the luminance decreases to the black display state within the time during which the black display signal is held, but the luminance does not necessarily fall within the time during which the black display signal is held. Does not need to be reduced to the black display state.
- the time required to write the black display signal (the time TFT is active when writing the black display signal) is short, the response speed of the liquid crystal layer is slow, or the time during which the black display signal is held If the power is too short, the brightness may not be sufficiently reduced and a strict black display state may not be achieved, but even in such a case, the effect of the pseudo impulse drive can be obtained.
- a specific method of the black insertion driving a known method can be widely used. By using the method disclosed in Japanese Patent Application Laid-Open No. 2001-60078 and Japanese Patent Application Laid-Open No. 2001-296838, black insertion driving can be performed with a simple configuration.
- a black display signal in the data signal that is, a signal different from the lowest gradation signal is used.
- a black display signal in the data signal that is, a signal different from the lowest gradation signal.
- the first display unit 10a and the second display unit 10b are used for displaying moving images.
- Black insertion driving may be performed in both the unit 10a and the second display unit 10b.
- the first display section 10a and the second display section 10b determine the time during which the black display signal is maintained within the time corresponding to one vertical scanning period and the ratio thereof, by the vertical scanning in each display section. It may be made different depending on the frequency or the like.
- the display device according to the present invention can be suitably used as a display device for an instrument panel mounted on a motor vehicle.
- the instrument panel is an instrument panel that displays information necessary for driving the vehicle, such as speed.
- the width of the instrument panel in the left-right (horizontal) direction is often much wider than the width in the up-down (vertical) direction, the display device according to the present invention can be driven separately as described above. Since a plurality of display units are provided, even when used for an instrument panel, it is possible to perform display in which unevenness due to signal delay or waveform rounding is suppressed.
- motorized vehicle '' broadly refers to a self-propelled vehicle or machine used to transport passengers or goods or to move goods, such as passenger cars, motorcycles, buses, trucks, tractors, airplanes, Motor boats, civil engineering vehicles, trains, etc. Needless to say, this includes motors equipped with electric motors (so-called electric motors) that are not limited to engines equipped with internal combustion engines such as gasoline engines.
- FIG. 3 is a diagram schematically showing a liquid crystal display device 100A for an instrument panel mounted on a four-wheeled vehicle.
- the liquid crystal display device 100A has basically the same configuration as the liquid crystal display device 100 shown in FIG. 1, and has a first display portion 10a and a second display portion 10b.
- the first display section 1 Oa displays the speed of the motor vehicle, the position of the shift lever, the remaining battery level, the water temperature, and the remaining fuel level
- the second display section 10 b displays the running driving. This example illustrates a case where car navigation information for notifying a user of a current position and a route to a destination is displayed.
- the first display section 10a for displaying information including speed is preferably rewritten at a high refresh rate
- the second display section 10b for displaying car navigation information is preferably rewritten at a low refresh rate.
- the first display section 10a and the second display section 10b can be driven at different vertical scanning frequencies (refresh rates), so that the vertical scanning frequency of the first display section 10a for displaying speed can be reduced. It is relatively high, and the vertical scanning frequency of the second display unit 10b can be relatively low, so that power consumption can be reduced.
- the first display unit 10a for displaying the speed is required to have better moving image display performance than the second display unit 10b for displaying the car navigation information.
- the first display unit 10a and the second display unit 10b can be driven by different driving methods, so that the second display unit 10b that displays car navigation information performs normal driving while In the first display section 10a for displaying the speed, the black insertion drive can be performed, and the speed can be displayed without any feeling of afterimage or blur.
- the first display unit 10a does not display the number of rotations of the motor (gasoline engine or electric motor), but the number of rotations is also displayed. Similarly, it is preferable to perform black insertion driving, which is preferable to rewrite at a high refresh rate.
- FIG. 4 schematically shows another liquid crystal display device 100B for an instrument panel.
- the liquid crystal display device 100B differs from the liquid crystal display device 100A in that the liquid crystal display device 100B has a touch sensor 12 selectively provided in the second display section 10b.
- the touch sensor 12 is provided on the second display unit 10b, various input operations can be performed by touching the second display unit 10b. Therefore, it is possible to perform various operations more safely and reliably without distracting the driver's eyes from the instrument panel.
- touch sensor 12 various known touch sensors can be used.
- a resistive touch sensor or a capacitance touch sensor can be suitably used.
- the drive circuit group 20 for driving the display panel 10 may be formed on a substrate (for example, a flexible substrate) different from the substrate of the display panel 10, and may be formed on the display panel 10. It is formed directly on a substrate (for example, an active matrix substrate)! By forming at least a part of the drive circuit group 20 directly on the substrate of the display panel 10, it is possible to further reduce the thickness of the display device.
- a substrate for example, a flexible substrate
- a substrate for example, an active matrix substrate
- a display device with low power consumption and suitable for displaying multi-contents is provided.
- INDUSTRIAL APPLICATION This invention is used especially suitably for the display apparatus for instrument panels mounted in a motor vehicle.
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Automation & Control Theory (AREA)
- Crystallography & Structural Chemistry (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/598,029 US20070139355A1 (en) | 2004-02-17 | 2005-02-14 | Display device and automobile having the same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-039593 | 2004-02-17 | ||
JP2004039593 | 2004-02-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005078697A1 true WO2005078697A1 (ja) | 2005-08-25 |
Family
ID=34857850
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/002130 WO2005078697A1 (ja) | 2004-02-17 | 2005-02-14 | 表示装置およびそれを備えた自動車両 |
Country Status (2)
Country | Link |
---|---|
US (1) | US20070139355A1 (ja) |
WO (1) | WO2005078697A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012002258A1 (ja) * | 2010-06-30 | 2012-01-05 | シャープ株式会社 | 表示装置及びその制御方法、プログラム並びに記録媒体 |
JP2013196005A (ja) * | 2012-03-20 | 2013-09-30 | Ge Aviation Systems Ltd | 航空機コックピットのディスプレイのための装置 |
WO2015014019A1 (zh) * | 2013-07-31 | 2015-02-05 | 北京京东方光电科技有限公司 | 显示驱动电路及其驱动方法、显示装置 |
CN105453004A (zh) * | 2013-08-15 | 2016-03-30 | 苹果公司 | 显示/触摸的时域分离 |
CN110910828A (zh) * | 2018-09-14 | 2020-03-24 | 华为技术有限公司 | 一种屏幕模组及电子设备 |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101614667B1 (ko) | 2006-06-09 | 2016-04-21 | 애플 인크. | 터치 스크린 액정 디스플레이 |
CN101932915B (zh) * | 2008-01-22 | 2012-06-27 | 夏普株式会社 | 显示系统、显示控制装置、图像显示装置 |
KR101534109B1 (ko) * | 2008-12-23 | 2015-07-07 | 삼성전자주식회사 | 정전용량형 터치 패널 및 이를 포함하는 정전용량형 터치 시스템 |
CN102201215A (zh) * | 2008-12-24 | 2011-09-28 | 北京京东方光电科技有限公司 | Tft-lcd阵列基板及其驱动方法 |
EP2365417A3 (en) * | 2010-03-08 | 2015-04-29 | Semiconductor Energy Laboratory Co, Ltd. | Electronic device and electronic system |
CN102934152A (zh) * | 2010-06-30 | 2013-02-13 | 夏普株式会社 | 显示装置 |
KR20140005572A (ko) * | 2012-07-05 | 2014-01-15 | 삼성디스플레이 주식회사 | 표시 패널, 이를 구비하는 평판 표시 장치 및 표시 패널 구동 방법 |
FI127221B (en) * | 2014-10-17 | 2018-01-31 | Rightware Oy | Dynamic rendering of graphics |
CN108877621B (zh) * | 2018-06-29 | 2022-02-25 | 厦门天马微电子有限公司 | 一种显示面板和显示装置 |
CN110070821B (zh) * | 2019-05-31 | 2022-08-23 | 上海天马微电子有限公司 | 一种显示面板及其驱动方法和显示装置 |
KR20220018141A (ko) * | 2020-08-05 | 2022-02-15 | 삼성디스플레이 주식회사 | 플렉서블 표시 장치 및 이를 이용한 표시 패널의 구동 방법 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05241127A (ja) * | 1992-02-28 | 1993-09-21 | Canon Inc | 液晶表示装置 |
JPH11271709A (ja) * | 1998-03-20 | 1999-10-08 | Toshiba Corp | 表示装置 |
JP2000122596A (ja) * | 1998-10-15 | 2000-04-28 | Internatl Business Mach Corp <Ibm> | 表示装置 |
JP2000187470A (ja) * | 1998-12-22 | 2000-07-04 | Sharp Corp | 液晶表示装置 |
JP2000315068A (ja) * | 1999-02-12 | 2000-11-14 | Toshiba Corp | 画像表示装置 |
JP2001117533A (ja) * | 1999-10-18 | 2001-04-27 | Victor Co Of Japan Ltd | マトリクス型画像表示装置 |
JP2003158573A (ja) * | 2001-11-21 | 2003-05-30 | Canon Inc | 折り畳み式装置及びその制御方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2046600A (en) * | 1998-12-09 | 2000-06-26 | Delphi Technologies, Inc. | A vehicle steering command module |
JP3556150B2 (ja) * | 1999-06-15 | 2004-08-18 | シャープ株式会社 | 液晶表示方法および液晶表示装置 |
EP1170622A1 (en) * | 2000-02-10 | 2002-01-09 | Matsushita Electric Industrial Co., Ltd. | Display and method for driving the same |
CN1209742C (zh) * | 2000-06-15 | 2005-07-06 | 夏普株式会社 | 液晶显示装置、照明装置和照明装置的驱动方法 |
US7106350B2 (en) * | 2000-07-07 | 2006-09-12 | Kabushiki Kaisha Toshiba | Display method for liquid crystal display device |
JP2002023683A (ja) * | 2000-07-07 | 2002-01-23 | Sony Corp | 表示装置およびその駆動方法 |
JP3659247B2 (ja) * | 2002-11-21 | 2005-06-15 | セイコーエプソン株式会社 | 駆動回路、電気光学装置及び駆動方法 |
-
2005
- 2005-02-14 WO PCT/JP2005/002130 patent/WO2005078697A1/ja active Application Filing
- 2005-02-14 US US10/598,029 patent/US20070139355A1/en not_active Abandoned
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05241127A (ja) * | 1992-02-28 | 1993-09-21 | Canon Inc | 液晶表示装置 |
JPH11271709A (ja) * | 1998-03-20 | 1999-10-08 | Toshiba Corp | 表示装置 |
JP2000122596A (ja) * | 1998-10-15 | 2000-04-28 | Internatl Business Mach Corp <Ibm> | 表示装置 |
JP2000187470A (ja) * | 1998-12-22 | 2000-07-04 | Sharp Corp | 液晶表示装置 |
JP2000315068A (ja) * | 1999-02-12 | 2000-11-14 | Toshiba Corp | 画像表示装置 |
JP2001117533A (ja) * | 1999-10-18 | 2001-04-27 | Victor Co Of Japan Ltd | マトリクス型画像表示装置 |
JP2003158573A (ja) * | 2001-11-21 | 2003-05-30 | Canon Inc | 折り畳み式装置及びその制御方法 |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012002258A1 (ja) * | 2010-06-30 | 2012-01-05 | シャープ株式会社 | 表示装置及びその制御方法、プログラム並びに記録媒体 |
JP2013196005A (ja) * | 2012-03-20 | 2013-09-30 | Ge Aviation Systems Ltd | 航空機コックピットのディスプレイのための装置 |
US10852156B2 (en) | 2012-03-20 | 2020-12-01 | Ge Aviation Systems Limited | Apparatus for an aircraft cockpit display |
WO2015014019A1 (zh) * | 2013-07-31 | 2015-02-05 | 北京京东方光电科技有限公司 | 显示驱动电路及其驱动方法、显示装置 |
CN105453004A (zh) * | 2013-08-15 | 2016-03-30 | 苹果公司 | 显示/触摸的时域分离 |
CN105453004B (zh) * | 2013-08-15 | 2019-04-12 | 苹果公司 | 显示/触摸的时域分离 |
CN110910828A (zh) * | 2018-09-14 | 2020-03-24 | 华为技术有限公司 | 一种屏幕模组及电子设备 |
CN110910828B (zh) * | 2018-09-14 | 2022-01-11 | 华为技术有限公司 | 一种屏幕模组及电子设备 |
US11545086B2 (en) | 2018-09-14 | 2023-01-03 | Huawei Technologies Co., Ltd. | Screen module and electronic device |
Also Published As
Publication number | Publication date |
---|---|
US20070139355A1 (en) | 2007-06-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2005078697A1 (ja) | 表示装置およびそれを備えた自動車両 | |
US10504473B2 (en) | Display apparatus | |
JP4551712B2 (ja) | ゲート線駆動回路 | |
JP4252051B2 (ja) | 液晶表示装置およびその駆動方法 | |
US20040017344A1 (en) | Liquid-crystal display device and driving method thereof | |
JP2001343946A (ja) | 液晶表示装置およびその駆動方法 | |
JP2001282205A (ja) | アクティブマトリクス型液晶表示装置およびその駆動方法 | |
JP2011059330A (ja) | 電気泳動表示装置及びその駆動方法 | |
JP2007025644A (ja) | 液晶ディスプレイパネルの駆動方法及び該駆動方法を用いた液晶ディスプレイパネル並びに該液晶ディスプレイパネルの駆動に用いる駆動モジュール | |
JP5121334B2 (ja) | 液晶表示装置および液晶表示装置の駆動方法 | |
JP2006058638A (ja) | ゲート線駆動回路 | |
JP2006053428A (ja) | ゲート線駆動回路 | |
JP2006251534A (ja) | 表示装置 | |
JP4342538B2 (ja) | 液晶表示装置および液晶表示装置の駆動方法 | |
KR101857064B1 (ko) | 액정표시장치 | |
CN112859416A (zh) | 液晶显示面板及液晶显示装置 | |
EP1927975B1 (en) | Method of driving liquid crystal display device | |
KR101329705B1 (ko) | 액정패널과 액정표시장치 및 그 구동방법 | |
JP3586023B2 (ja) | 液晶表示装置およびその駆動方法 | |
US9489910B2 (en) | Display device | |
JP4283431B2 (ja) | 液晶表示装置 | |
JPH08211368A (ja) | 液晶表示素子と液晶表示装置 | |
JP6087956B2 (ja) | 薄膜トランジスタアレイ基板、及び、液晶表示装置 | |
JP4294631B2 (ja) | 液晶表示装置 | |
KR20060001331A (ko) | 액정표시장치의 구동방법 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2007139355 Country of ref document: US Ref document number: 10598029 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWW | Wipo information: withdrawn in national office |
Country of ref document: DE |
|
122 | Ep: pct application non-entry in european phase | ||
WWP | Wipo information: published in national office |
Ref document number: 10598029 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: JP |