WO2022145285A1 - 表示装置 - Google Patents
表示装置 Download PDFInfo
- Publication number
- WO2022145285A1 WO2022145285A1 PCT/JP2021/047255 JP2021047255W WO2022145285A1 WO 2022145285 A1 WO2022145285 A1 WO 2022145285A1 JP 2021047255 W JP2021047255 W JP 2021047255W WO 2022145285 A1 WO2022145285 A1 WO 2022145285A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heat conductive
- conductive member
- display
- cell
- heat
- Prior art date
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 229910002804 graphite Inorganic materials 0.000 claims description 9
- 239000010439 graphite Substances 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 238000009792 diffusion process Methods 0.000 abstract description 26
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 20
- 230000000694 effects Effects 0.000 description 19
- 238000011156 evaluation Methods 0.000 description 14
- 238000005401 electroluminescence Methods 0.000 description 12
- 230000006866 deterioration Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 8
- 230000017525 heat dissipation Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 230000004397 blinking Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/8794—Arrangements for heating and cooling
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/66—Transforming electric information into light information
- H04N5/70—Circuit details for electroluminescent devices
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
Definitions
- a display device using an organic EL (Electro Luminescence) element is superior to a display device using a liquid crystal display in that the organic EL element emits light by itself and does not require a backlight, and the response speed to an electric current is fast. Are better.
- the organic EL element has a problem that heat stays inside the organic EL element due to heat generation during driving.
- Patent Document 1 discloses that a heat radiating member is provided in the stacking direction of the organic EL element so as to prevent the organic EL element from having a complicated structure.
- Patent Document 1 focuses on the heat dissipation performance of each organic EL element, and even if the heat dissipation in the thickness direction of the display panel can be improved, the heat dissipation in the surface direction of the display panel is not improved. There wasn't.
- This disclosure has been made in view of such a situation, and is intended to enable improvement of the heat diffusion performance in the surface direction of the display panel.
- the display device of the present disclosure includes a plate-shaped display cell for displaying an image and a thin plate-shaped heat conductive member attached to the back surface side of the display cell, and the heat conductive member is approximately 0.3 to 0.3 or more. It is a display device formed to a thickness of 1.0 mm.
- the heat conductive member is approximately 0.3. It is formed to a thickness of to 1.0 mm.
- FIG. 1 It is a figure which shows the side configuration example of a display device. It is a figure which shows the back configuration example of a display device. It is a figure which shows the back configuration example of the display device which removed the back chassis. It is a figure which shows the cross-sectional composition example of a display device. It is a figure which shows the structural example of the display device which applied the technique which concerns on this disclosure. It is a figure which shows the structural example of the display device which applied the technique which concerns on this disclosure. It is a figure explaining the evaluation method of the heat diffusion performance of a heat conduction member. It is a figure which shows the evaluation result of the heat diffusion performance. It is a figure explaining the evaluation method of the element life by a heat conduction member.
- Patent Document 1 discloses that a heat radiating member is provided in the stacking direction of the organic EL element so as to prevent the organic EL element from having a complicated structure.
- this configuration focuses on the heat dissipation performance of each organic EL element, and even if the heat dissipation in the thickness direction of the OLED cell (display panel) can be improved, the heat dissipation in the surface direction of the OLED cell is improved. It wasn't.
- the OLED cell is vibrated by an actuator to output sound from the display surface.
- a space for vibration amplitude
- the heat of the OLED cell can be efficiently dissipated to the back cover.
- the improvement of the brightness of the display device is left to the improvement of the luminous efficiency of the OLED cell itself, and it can be easily realized by the finished product maker who manufactures the television receiver and the display using the OLED cell. There wasn't.
- the t3.0 Al plate is very costly and increases the weight. Further, when the Al plate having such a thickness is applied to the configuration in which the OLED cell is vibrated by the actuator, the vibration of the OLED cell is suppressed and the sound pressure is lowered.
- a thin plate-shaped (sheet-shaped) heat conductive member is attached on the Encapsulating substrate on the back surface of the OLED cell to improve the heat diffusion performance in the surface direction of the OLED cell. Try.
- the peak temperature of the surface of the OLED cell can be lowered and the heat can be equalized by heat conduction in the surface direction from the place where the temperature is high to the place where the temperature is low.
- the thickness of the heat conductive member and the required heat diffusion performance can be optimized. ..
- the output of the actuator and the vibration of the OLED cell can be balanced, and the heat diffusion performance and sound pressure are trade-offs. Can be maintained at the same time.
- FIG. 1 is a diagram showing a side configuration example of a display device
- FIG. 2 is a diagram showing a rear configuration example of the display device.
- the display device 1 is a display device that displays an image, and is configured as, for example, a television receiver or a display using an OLED cell.
- the display device 1 is configured to be able to output audio from a display surface on which an image is displayed.
- the display device 1 includes, for example, a panel unit 10 as a diaphragm, a vibration unit 20 arranged on the back surface of the panel unit 10 to vibrate the panel unit 10, and a signal processing unit 30 for controlling the vibration unit 20. ing.
- the panel unit 10 has a plate-shaped display cell for displaying an image and an inner plate arranged to face the display cell via a gap. As shown in FIG. 3, two exciters 21 and 22 constituting the exciter unit 20 are arranged on the back surface side of the panel unit 10 (display cell).
- the exciters 21 and 22 are arranged so as to avoid the points most likely to vibrate in the entire voice frequency (for example, 20 Hz to 20 kHz) when the display cells are vibrated by the exciters 21 and 22.
- Examples of the "location most likely to vibrate” include the position of the antinode of the largest standing wave generated in the display cell when the display cell is vibrated by the exciters 21 and 22.
- the exciter 21 and 22 are further arranged so as to avoid a portion that is most difficult to vibrate in the entire voice frequency when the vibrating device 21 and 22 causes the display cell to vibrate.
- the exciter 21 and the exciter 22 have a common configuration with each other.
- the exciters 21 and 22 are configured as a voice coil, a bobbin around which the voice coil is wound, and a speaker actuator as a vibration source having a magnetic circuit, respectively.
- the exciters 21 and 22 When the voice current of the electric signal flows through the voice coil, the exciters 21 and 22 generate a driving force in the voice coil by the principle of electromagnetic action. This driving force is transmitted to the display cell, causing the display cell to vibrate according to the change in the voice current, and the air vibrates to change the sound pressure.
- the display device 1 can output audio from the display surface on which the image is displayed.
- the panel unit 10 of FIG. 4 constitutes a conventional display device to which the technique according to the present disclosure is not applied.
- the panel unit 10 is composed of a display cell 50 and a back cover 60.
- the display cell 50 is configured as a plate-shaped OLED cell that displays an image.
- the back cover 60 is arranged so as to protect the back surface side of the display cell 50, and is configured by adhering the back chassis 19 and the inner plate 61.
- the inner plate 61 is arranged to face the display cell 50 via the gap.
- the inner plate 61 also functions as a member for supporting the above-mentioned exciters 21 and 22.
- the inner plate 61 has, for example, an opening at a position where the exciters 21 and 22 (FIG. 3) are arranged.
- the back surface of the display cell 50 (the surface on the inner plate 61 side) is formed of an encapping material that seals the inside of the display cell 50.
- the heat diffusion performance of the encap material is not high, the temperature distribution on the surface of the display cell 50 will vary.
- FIG. 5 and 6 are diagrams showing a configuration example of the display device 1 (panel unit 10) to which the technique according to the present disclosure is applied.
- FIG. 5 shows a configuration example on the back surface side of the display cell 50
- FIG. 6 shows a cross-sectional configuration example of the panel portion 10.
- a thin plate-shaped heat conductive member 100 is placed on the back surface (specifically, the encapping material forming the back surface) of the plate-shaped display cell 50 for displaying an image. Is pasted.
- the heat conductive member 100 is formed of a member having a relatively high thermal conductivity such as aluminum, graphite, and copper.
- the heat conductive member 100 is formed to have a thickness of approximately 0.3 to 1.0 mm. More preferably, the heat conductive member 100 is formed to have a thickness of approximately 0.3 to 0.5 mm.
- the heat conductive member 100 is attached on the back surface of the display cell 50 so as to cover substantially the entire back surface of the display cell 50, for example, as shown in FIG.
- the fixing member 70 fixes the heat conductive member 100 and the inner plate 61 while maintaining a gap between the heat conductive member 100 and the inner plate 61.
- the thickness of the heat conductive member 100 and the required heat diffusion performance can be optimized.
- the display cell 50 is vibrated to output sound. In the configuration, it is possible to maintain the sound pressure without suppressing the vibration of the display cell 50.
- FIG. 7 is a diagram illustrating a method of evaluating the heat diffusion performance of the heat conductive member 100 with respect to the display cell 50.
- FIG. 7 the configuration on the surface (display surface) side of the display cell 50 is shown.
- a heat conductive member 100GR made of graphite is attached to the region on the left side when viewed from the surface of the display cell 50, and aluminum (Al) is used on the region on the right side when viewed from the surface of the display cell 50.
- the formed heat conductive member 100AL is attached. Further, on the back surface of the display cell 50, there is a region (without countermeasures) to which nothing is attached between the heat conductive member 100GR and the heat conductive member 100AL.
- the thickness of the heat conductive member 100GR is 0.3 mm
- the thickness of the heat conductive member 100AL is 0.5 mm.
- the heat diffusion performance of the heat conductive members 100GR and 100AL is evaluated with respect to the display cell 50.
- the rectangular areas (windows) W1, W2, and W3 are made to emit light in a predetermined color (for example, magenta) for a certain period of time, and when the entire display cell 50 is made to emit light for a certain period of time. Measure the temperature at positions P1, P2 and P3.
- the window W1 corresponds to the region on the back surface of the display cell 50 to which the heat conductive member 100GR is attached, and includes the position P1.
- the window W2 corresponds to an area (without countermeasures) on the back surface of the display cell 50 where nothing is pasted, and includes the position P2.
- the window W3 corresponds to the region on the back surface of the display cell 50 to which the heat conductive member 100AL is attached, and includes the position P3.
- the light emission of each of the windows W1, W2, and W3 is assumed to be partially pushed up instantaneously, and the light emission of the entire screen reproduces the thermal equilibrium state when the brightness of the entire screen is increased.
- the temperature at position P2 without countermeasures was 42.2 degrees. Further, the temperature of the position P1 taken measures by the heat conductive member 100GR (graphite) was 39.5 degrees, and the temperature of the position P3 taken measures by the heat conductive member 100AL (Al) was 40.3 degrees.
- the countermeasure was 17.2 degrees when the countermeasure was taken with graphite (t0.3) and the countermeasure was taken with aluminum (t0.5) compared to the case without the countermeasure. In some cases, a heat-suppressing effect of 14.1 degrees was observed.
- FIG. 9 is a diagram illustrating a method of evaluating the element life of the heat conductive member 100 with respect to the display cell 50.
- FIG. 9 the configuration on the back side of the display cell 50 is shown.
- the heat conductive member 100AL3 of t0.3 formed of Al is attached to the right side region (the region on the left side when viewed from the front surface of the display cell 50).
- the heat conductive member 100AL5 of t0.5 formed of Al is attached to the left side region (the region on the right side when viewed from the front surface of the display cell 50).
- the temperature of the white small window Ws having a brightness of 3 times is simply referred to as the temperature of 3 times white
- the temperature of the red small window Ws is simply referred to as the red temperature.
- the temperature of triple white is 59.6 degrees
- the temperature of double white is 41.8 degrees
- the temperature of red is 41.7 degrees
- the temperature of green is 41.4 degrees
- the temperature of blue was 38.4 degrees.
- the temperature of triple white is 40.9 degrees
- the temperature of double white is 35.8 degrees
- the temperature of red is 35.3 degrees
- the temperature of green is 35.7 degrees
- the temperature of blue is blue.
- the temperature of was 34.1 degrees.
- the temperature of triple white is 38.8 degrees
- the temperature of double white is 34.8 degrees
- the temperature of red is 34.4 degrees
- the temperature of green is 35.1 degrees
- the temperature of blue is blue.
- the temperature of was 33.1 degrees.
- the small window Ws of each color in each of the Al 0.3 mm region and the Al 0.5 mm region is 4 to 7 degrees.
- a degree of heat suppression effect was observed.
- triple white which was supposed to be pushed up strongly instantly, a heat suppressing effect of nearly 20 degrees was observed.
- the luminance ratio represents the ratio of the luminance L at a predetermined elapsed time to the luminance L0 at the elapsed time 0 [h]. That is, it is shown that the deterioration of the element progresses as the luminance ratio decreases with the passage of time.
- the degree of progress of element deterioration is approximately the same in the Al 0.3 mm region and the Al 0.5 mm region for triple white assuming strong instantaneous thrust. It was confirmed that they were the same and there was almost no difference depending on the thickness of Al.
- the deterioration rate of the triple white element in the region with Al (the region of Al 0.3 mm and the region of Al 0.5 mm) and the double white in the region without Al shown by the two-dot chain line in the figure. It can also be confirmed that the deterioration rate of the element is equivalent to that of.
- the heat conductive members 100AL3 and 100AL5 have the same effect of suppressing deterioration of the element.
- 0.3 mm is applied as the thickness of the heat conductive member 100 made of Al from the viewpoint of cost and weight. It is preferable to do so.
- the technique according to the present disclosure can also be applied to a configuration in which an OLED cell is vibrated by an actuator. Therefore, the applicant also evaluated the sound effect of the heat conductive member 100 on the display cell 50.
- FIG. 13 is a diagram illustrating a method of evaluating the sound effect of the heat conductive member 100 on the display cell 50.
- FIG. 13 the configuration on the back side of the display cell 50 is shown.
- a heat conductive member 100AL5 of t0.5 made of Al is attached to substantially the entire back surface of the display cell 50 with, for example, a double-sided tape having a thickness of 0.05 mm.
- the positions P21 and P22 where the exciters 21 and 22 are arranged in the display cell 50 are shown by broken lines.
- FIG. 14 shows the evaluation result of the sound influence by the heat conductive member 100AL5.
- an Al thin plate having a thickness of 0.3 mm as a heat conductive member, it is possible to balance the output of the actuator and the vibration of the OLED cell, and it is possible to achieve both heat diffusion performance and maintenance of sound pressure. can.
- an Al thin plate thicker than an Al thin plate having a thickness of 0.3 mm can be applied as the heat conductive member.
- the technique according to the present disclosure may have the following configuration.
- a plate-shaped display cell that displays images and It is provided with a thin plate-shaped heat conductive member attached to the back surface side of the display cell.
- the heat conductive member is a display device formed to have a thickness of approximately 0.3 to 1.0 mm.
- the display device according to (1) or (2), wherein the heat conductive member is made of aluminum.
- the display device according to any one of (1) to (5), wherein the display cell is an OLED (Organic Light Emitting Diode) cell.
- the display device which is arranged on the back surface side of the display cell and further includes a plurality of vibrators that vibrate the display cell.
- the vibrating device is arranged so as to avoid a portion that is most likely to vibrate and a portion that is most difficult to vibrate in the entire voice frequency when the display cell is vibrated by the vibrating device. ..
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Thermal Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Electroluminescent Light Sources (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Description
2.表示装置の構成
3.熱拡散性能の評価
4.素子寿命の評価
5.音影響の評価
(従来技術)
OLED(Organic Light Emitting Diode)素子(有機EL素子とも呼ばれる)を用いた表示装置は、輝度を上げると、OLEDセルの背面に配置したコントロール基板の発熱と、OLEDセル自体の発熱とによって、OLEDセルの表面温度が上昇する。このような発熱は、OLED素子の劣化速度(寿命)に影響を及ぼすため、OLEDセル表面の温度分布において最も高い温度が、OLEDセルのスペックを超えないようにする必要があった。
本開示に係る技術においては、OLEDセルの裏面のEncapsulating substrate(エンキャップ材)の上に薄板状(シート状)の熱伝導部材を貼ることで、OLEDセルの面方向の熱拡散性能の向上を図る。
本開示に係る技術が適用されうる表示装置の構成について説明する。図1は、表示装置の側面構成例を示す図であり、図2は、表示装置の背面構成例を示す図である。
図7は、表示セル50に対する熱伝導部材100の熱拡散性能の評価方法について説明する図である。
図9は、表示セル50に対する熱伝導部材100による素子寿命の評価方法について説明する図である。
本開示に係る技術は、アクチュエータによりOLEDセルを振動させる構成にも適用することができる。そこで、出願人は、表示セル50に対する熱伝導部材100による音影響の評価も行った。
(1)
映像を表示する板状の表示セルと、
前記表示セルの裏面側に貼り付けられた薄板状の熱伝導部材と
を備え、
前記熱伝導部材は、略0.3乃至1.0mmの厚さに形成される
表示装置。
(2)
前記熱伝導部材は、略0.3乃至0.5mmの厚さに形成される
(1)に記載の表示装置。
(3)
前記熱伝導部材は、アルミニウムで形成される
(1)または(2)に記載の表示装置。
(4)
前記熱伝導部材は、グラファイトで形成される
(1)または(2)に記載の表示装置。
(5)
前記熱伝導部材の厚さは、0.3mmとされる
(1)乃至(4)のいずれかに記載の表示装置。
(6)
前記表示セルは、OLED(Organic Light Emitting Diode)セルである
(1)乃至(5)のいずれかに記載の表示装置。
(7)
前記表示セルの裏面側に配置され、前記表示セルを振動させる複数の加振器をさらに備える
(1)乃至(6)のいずれかに記載の表示装置。
(8)
前記加振器は、前記加振器により前記表示セルを振動させたときに音声周波数全体において最も振動し易い箇所と最も振動し難い箇所とを避けて配置される
(7)に記載の表示装置。
Claims (8)
- 映像を表示する板状の表示セルと、
前記表示セルの裏面側に貼り付けられた薄板状の熱伝導部材と
を備え、
前記熱伝導部材は、略0.3乃至1.0mmの厚さに形成される
表示装置。 - 前記熱伝導部材は、略0.3乃至0.5mmの厚さに形成される
請求項1に記載の表示装置。 - 前記熱伝導部材は、アルミニウムで形成される
請求項1に記載の表示装置。 - 前記熱伝導部材は、グラファイトで形成される
請求項1に記載の表示装置。 - 前記熱伝導部材の厚さは、0.3mmとされる
請求項1に記載の表示装置。 - 前記表示セルは、OLED(Organic Light Emitting Diode)セルである
請求項1に記載の表示装置。 - 前記表示セルの裏面側に配置され、前記表示セルを振動させる複数の加振器をさらに備える
請求項1に記載の表示装置。 - 前記加振器は、前記加振器により前記表示セルを振動させたときに音声周波数全体において最も振動し易い箇所と最も振動し難い箇所とを避けて配置される
請求項7に記載の表示装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202180087696.4A CN116710988A (zh) | 2021-01-04 | 2021-12-21 | 显示装置 |
US18/270,042 US20240065083A1 (en) | 2021-01-04 | 2021-12-21 | Display Device |
Applications Claiming Priority (2)
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JP2021-000070 | 2021-01-04 | ||
JP2021000070A JP2022105361A (ja) | 2021-01-04 | 2021-01-04 | 表示装置 |
Publications (1)
Publication Number | Publication Date |
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WO2022145285A1 true WO2022145285A1 (ja) | 2022-07-07 |
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PCT/JP2021/047255 WO2022145285A1 (ja) | 2021-01-04 | 2021-12-21 | 表示装置 |
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US (1) | US20240065083A1 (ja) |
JP (1) | JP2022105361A (ja) |
CN (1) | CN116710988A (ja) |
WO (1) | WO2022145285A1 (ja) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006261057A (ja) * | 2005-03-18 | 2006-09-28 | Fuji Photo Film Co Ltd | 有機電界発光素子 |
JP2009058696A (ja) * | 2007-08-31 | 2009-03-19 | Canon Inc | 有機el発光素子、及び前記素子を用いた画像表示装置 |
JP2011124194A (ja) * | 2009-12-14 | 2011-06-23 | Canon Inc | 表示パネルおよび画像表示装置 |
JP2020171013A (ja) * | 2019-04-03 | 2020-10-15 | エルジー ディスプレイ カンパニー リミテッド | 表示装置 |
-
2021
- 2021-01-04 JP JP2021000070A patent/JP2022105361A/ja active Pending
- 2021-12-21 US US18/270,042 patent/US20240065083A1/en active Pending
- 2021-12-21 WO PCT/JP2021/047255 patent/WO2022145285A1/ja active Application Filing
- 2021-12-21 CN CN202180087696.4A patent/CN116710988A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006261057A (ja) * | 2005-03-18 | 2006-09-28 | Fuji Photo Film Co Ltd | 有機電界発光素子 |
JP2009058696A (ja) * | 2007-08-31 | 2009-03-19 | Canon Inc | 有機el発光素子、及び前記素子を用いた画像表示装置 |
JP2011124194A (ja) * | 2009-12-14 | 2011-06-23 | Canon Inc | 表示パネルおよび画像表示装置 |
JP2020171013A (ja) * | 2019-04-03 | 2020-10-15 | エルジー ディスプレイ カンパニー リミテッド | 表示装置 |
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US20240065083A1 (en) | 2024-02-22 |
JP2022105361A (ja) | 2022-07-14 |
CN116710988A (zh) | 2023-09-05 |
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