JP2015099364A - Display panel and manufacturing method of the same - Google Patents
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- 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
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
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- 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
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
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- 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
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
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- 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
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- 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
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- 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
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
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Abstract
Description
本発明は表示パネル及びその製造方法に関し、特に、青色光濾過効果を有する表示パネル及びその製造方法に関する。 The present invention relates to a display panel and a manufacturing method thereof, and more particularly, to a display panel having a blue light filtering effect and a manufacturing method thereof.
電子製品が日増しに普及しているにつれて、長期的に電子製品を使用することが健康を損なうかどうかについての論争は止んでいない。論争と検討の焦点は主に電子製品における表示パネルの放射問題に集まる。 As electronic products become more popular every day, the controversy over whether long-term use of electronic products is detrimental to health has not stopped. The focus of controversy and discussion is mainly on display panel radiation issues in electronic products.
現在、LCD（Liquid Crystal Display，液晶ディスプレイ）とOLED（Organic Electroluminesence Display，有機エレクトロルミネッセンスディスプレイ）技術は日増しに完全になり、既に従来のCRT（Cathode ray tube，陰極線管）ディスプレイに次第に代わってきた。LCDとOLEDが放出する放射線は、CRTディスプレイと比べて比較的に大幅に少なくなる。しかし、LCDとOLEDパネルからの放射線が人の目に傷害を与える問題はまだうまく解決されていない。 At present, LCD (Liquid Crystal Display) and OLED (Organic Electroluminesence Display) technologies are becoming more and more complete, and they have been gradually replaced by conventional CRT (Cathode ray tube) displays. . The radiation emitted by LCDs and OLEDs is relatively much less than CRT displays. However, the problem of radiation from LCDs and OLED panels causing injury to the human eye has not been solved well.
可視光も電磁波の一種であり、電磁波は即ち電磁放射線である。したがって、広義で言えば、可視光は即ち一種の電磁放射線である。しかし、通常的には、可視光が人体に対する危害は小さいと考えられる。可視光とは、電磁波スペクトルにおいて波長が約390〜760nmの範囲内で、且つ肉眼で見える電磁放射線を指す。各種の可視光のうち、青色光の波長は400〜500nm(Nanometer；NM)である。科学研究によると、網膜細胞には、英語名がA2Eである異常なレチナールが含まれ、A2Eは二つの吸収ピークを有し、一つは紫外線領域における335NMにあり、もう一つは青色光領域における435NMにある。光の照射のない暗い条件において、A2Eは網膜色素上皮に対して毒性を有する。光の照射がある条件において、その毒性は大幅に増加する。現在主流になったLCDとOLEDの光源に異常な高エネルギー短波長の青色光が含まれる。現在の理解で言えば、高エネルギー短波長の青色光とは、A2E吸収ピークにある波長が435NM〜440NMである高強度で高輝度な青色光である。 Visible light is also a type of electromagnetic wave, which is electromagnetic radiation. Therefore, in a broad sense, visible light is a kind of electromagnetic radiation. However, it is usually considered that visible light is less harmful to the human body. Visible light refers to electromagnetic radiation having a wavelength in the range of about 390 to 760 nm and visible to the naked eye in the electromagnetic wave spectrum. Among various types of visible light, the wavelength of blue light is 400 to 500 nm (Nanometer; NM). According to scientific research, retinal cells contain an unusual retinal with the English name A2E, A2E has two absorption peaks, one at 335 NM in the ultraviolet region and the other in the blue light region At 435NM. In dark conditions without light irradiation, A2E is toxic to the retinal pigment epithelium. In the presence of light irradiation, its toxicity is greatly increased. The LCD and OLED light sources that are now mainstream include blue light with an unusually high energy and short wavelength. According to current understanding, high-energy short-wavelength blue light is high-intensity and high-intensity blue light having a wavelength in the A2E absorption peak of 435 NM to 440 NM.
高エネルギー短波長の青色光による網膜傷害作用について、第一歩では、A2Eが青色光領域において吸収ピークがあるため、高エネルギー短波長の青色光はA2Eを励起させてラジカルイオンを放出させることができる。第二歩では、これらのラジカルイオンはA2Eによる網膜色素上皮傷害作用を増大し、網膜色素上皮の萎縮を引き起こし、更に光感受性細胞の死亡を引き起こす。光感受性細胞は入射光を受けて光信号を電気信号に変換する機能を発揮し、後者は視神経を経由して大脳に伝達された後に結像する。光感受性細胞の死亡により、視力は次第に低下し、ひいては完全に喪失してしまう。 Regarding the retinal damage caused by high-energy short-wavelength blue light, the first step is that A2E has an absorption peak in the blue light region, so high-energy short-wavelength blue light can excite A2E and release radical ions. it can. In the second step, these radical ions increase the retinal pigment epithelial damage by A2E, causing retinal pigment epithelium atrophy and further death of photosensitive cells. Photosensitive cells exhibit the function of receiving incident light and converting optical signals into electrical signals, and the latter forms an image after being transmitted to the cerebrum via the optic nerve. With the death of the photosensitive cells, visual acuity gradually decreases and eventually disappears completely.
したがって、従来の表示パネル技術は確かに更に改善する必要がある。 Therefore, the conventional display panel technology certainly needs to be further improved.
本発明が解決しようとする技術問題は、発する高エネルギー短波長の青色光による人の目に対する傷害を回避ための新規の表示パネルを提供することにある。 A technical problem to be solved by the present invention is to provide a novel display panel for avoiding injury to human eyes caused by blue light having a high energy and a short wavelength.
前記技術問題を解決するために、本発明は、ガラス基板と、ガラスパネルと、前記ガラス基板とガラスパネルの間に介在する発光ユニットとを備える表示パネルであって、前記発光ユニットにおける青色発光材料の光射出方向に、所定の波長域範囲（例えば、≦440nm）の青色光を濾過するための光濾過層が設けられている表示パネルを開示している。 In order to solve the technical problem, the present invention provides a display panel comprising a glass substrate, a glass panel, and a light emitting unit interposed between the glass substrate and the glass panel, wherein the blue light emitting material in the light emitting unit A display panel is disclosed in which a light filtering layer for filtering blue light in a predetermined wavelength range (for example, ≦ 440 nm) is provided in the light emitting direction.
当該光濾過層により、表示パネルにおける青色発光材料が放射し発する青色光に対して所定の波長域範囲の光の濾過を行い、ある所定の波長（例えば、440nm）より小さい高エネルギー短波長の青色光が人の目を傷害することを回避する。 The light filtering layer filters blue light emitted and emitted from the blue light-emitting material in the display panel, filters light in a predetermined wavelength range, and has a high energy short wavelength blue smaller than a predetermined wavelength (for example, 440 nm). Avoid light damaging human eyes.
本発明の更なる改善は、前記表示パネルがLCD表示パネル、OLED表示パネル又は任意の適切なパネルであることにある。 A further improvement of the present invention is that the display panel is an LCD display panel, an OLED display panel or any suitable panel.
本発明の更なる改善は、前記光濾過層が前記ガラスパネルの表面又は裏面に製作されるバンドパス光濾過層であることにある。 A further improvement of the present invention is that the light filtration layer is a bandpass light filtration layer fabricated on the front or back surface of the glass panel.
本発明の更なる改善は、前記バンドパス光濾過層がガラスパネルに例えば蒸着又はスパッタリングされる多層媒体膜、又はガラスパネルにスピン塗布される青色フォトレジストであることにある。 A further improvement of the present invention resides in that the bandpass light filtration layer is a multilayer media film, for example deposited or sputtered on a glass panel, or a blue photoresist spin-coated on a glass panel.
本発明は、前記表示パネルの発光ユニットにおける青色発光材料の光射出方向に光濾過層を設けることにより、ある所定の波長域範囲内の青色光を濾過する工程を備える表示パネルの製造方法を更に開示している。 The present invention further provides a method for manufacturing a display panel, further comprising a step of filtering blue light within a predetermined wavelength range by providing a light filtering layer in a light emitting direction of the blue light emitting material in the light emitting unit of the display panel. Disclosure.
本発明の更なる改善は、前記表示パネルがLCD表示パネルであることにある。 A further improvement of the present invention is that the display panel is an LCD display panel.
本発明の更なる改善は、前記表示パネルがOLED表示パネルであることにある。 A further improvement of the present invention is that the display panel is an OLED display panel.
本発明の更なる改善は、前記表示パネルのガラスパネルの表面又は裏面にバンドパス光濾過層を製作することにより、ある所定の波長域範囲内の青色光を濾過することにある。 A further improvement of the present invention is to filter blue light within a predetermined wavelength range by producing a band-pass light filtering layer on the front or back surface of the glass panel of the display panel.
本発明の更なる改善は、前記ガラスパネルに多層媒体膜を例えば蒸着又はスパッタリングすることにより前記バンドパス光濾過層を形成し、或いは、前記ガラスパネルに青色フォトレジストをスピン塗布することにより前記バンドパス光濾過層を形成することにある。 A further improvement of the present invention is that the bandpass light filtration layer is formed by, for example, vapor deposition or sputtering of a multilayer medium film on the glass panel, or a blue photoresist is spin-coated on the glass panel. The purpose is to form a pass light filtration layer.
本発明の構造及び動作原理を明らかに説明するために、以下、添付図面と好ましい具体的実施例を参照して本発明について更に説明する。 To clearly illustrate the structure and principle of operation of the present invention, the present invention will be further described below with reference to the accompanying drawings and preferred embodiments.
先ず、OLEDパネルを例として、図1を参照し、同図は本発明に係るOLED表示パネルの第一の好ましい実施形態の構造模式図であり、前記OLED表示パネルは、ガラス基板10と、ガラスパネル20と、ガラス基板10とガラスパネル20の間に介在する発光ユニット30とを主に備え、当該発光ユニット30は、駆動するための薄膜トランジスター31（TFT）と、発光するための発光構造層32とを主に備え、当該発光構造層32は陽極（ITO）、正孔輸送層（HTL）、発光層（EL）、電子輸送層（ETL）及び陰極(Cathode)などを更に備える。電力が供給されて適当な電圧に到達する時、正極正孔と陰極電荷は発光層において結合し、光を発し、その組成の差異によって赤、緑、青というRGB三原色を発し、基本色を構成する。OLEDパネルの駆動及び発光原理について、公知の技術であるので、ここで贅言しない。
First, referring to FIG. 1 as an example of an OLED panel, which is a structural schematic diagram of a first preferred embodiment of an OLED display panel according to the present invention, the OLED display panel includes a
本発明の第一の好ましい実施形態の構造では、表示パネルの発光ユニット30における青色発光材料321の光射出方向にバンドパス光濾過層21を設け、当該バンドパス光濾過層により、波長がある所定の値より小さい光子が透過できないように青色発光材料321が放射した波における短波長の部分を濾過し、高強度で高輝度な青色光による人の目に対する傷害を回避した。本実施例では、当該バンドパス光濾過層21は直接にガラスパネルの裏面に製作され、当該製作方法は、多層媒体膜を蒸着又はスパッタリングする方法を選択してもよく、青色フォトレジストをスピン塗布する方法を選択してもよい。
In the structure of the first preferred embodiment of the present invention, a bandpass
先ず、例えば蒸着又はスパッタリングによる多層媒体膜技術は、多くの入射光の回折を利用し、波長がある所定の範囲内である光を透過させ、他の波長の光を反射するので、青色光発光材料の反射スペクトルを調整して短波長光子を濾過できる。例えば、青色光ディバイスの放射スペクトルの範囲は400nm〜500nmであり、ピーク波長は460nmである。例えば、440〜500nmの範囲のバンドパスフィルタを透過した後、そのスペクトル範囲は440〜500nmになり、スペクトルを純化し、有害な短波を濾過した。当該440〜500nmのバンドパスフィルタの多層スパッタリングフィルム構造は全部15層あるHLH2LHLHLHLH2LHLHを選択でき、その中、LとHはそれぞれ厚さが1/4波長である低屈折率層と高屈折率層を示し、当該バンドパスフィルタの中心波長は470nmであるので、対応する厚さは117.5nmであり、2Lは厚さが1/2波長である低屈折率層を示し、当該バンドパスフィルタの中心波長は470nmであるので、対応する厚さは235nmである。当該実施例では、低屈折率層はSiO2（屈折率n=1.45）を選択し利用でき、高屈折率層はTiO2（屈折率n=2.3）を選択し利用できる。同一の機能を発揮できる他の多層膜構造も当該実施例に適用できる。 First, multilayer media film technology, for example by vapor deposition or sputtering, utilizes the diffraction of many incident lights, transmits light within a certain range of wavelengths and reflects light of other wavelengths, so blue light emission Short wavelength photons can be filtered by adjusting the reflection spectrum of the material. For example, the range of the emission spectrum of a blue light device is 400 nm to 500 nm, and the peak wavelength is 460 nm. For example, after passing through a bandpass filter in the range of 440-500 nm, the spectral range was 440-500 nm, purifying the spectrum and filtering out harmful short waves. HLH2LHLHLHLH2LHLH can be selected as the multilayer sputtering film structure of the 440 to 500 nm bandpass filter, and among them, L and H are a low refractive index layer and a high refractive index layer each having a quarter wavelength. Since the center wavelength of the bandpass filter is 470 nm, the corresponding thickness is 117.5 nm, 2L indicates a low refractive index layer having a thickness of 1/2 wavelength, and the center wavelength of the bandpass filter Is 470 nm, the corresponding thickness is 235 nm. In this embodiment, SiO 2 (refractive index n = 1.45) can be selected and used for the low refractive index layer, and TiO 2 (refractive index n = 2.3) can be selected and used for the high refractive index layer. Other multilayer structures that can perform the same function can also be applied to this embodiment.
次に、青色フォトレジストの製作は、半導体の黄色光リソグラフィープロセスに類似する顔料分散法を採用でき、先ず、顔料分散型カラーフォトレジストをガラスパネルに塗布し、フォトレジストプリベーク（Pre-bake）、露光アライメント（Aligned）、現像（Developed）、フォトレジスト剥離（Stripping）、ポストベーク（Post-bake）などのプロセスフローを経て当該青色フォトレジストを作成した。本方法に係る青色フォトレジスト（Photo Resist）は、半導体及びTFT-LCDパネルの生産ラインのリソグラフィープロセスに広く用いられる一種の感光材料であり、主成分はフォトレジスト顔料、樹脂、溶剤及び他の添加剤を含み、その中、樹脂は顔料の分散及びガラスパネルに対する付着に寄与するとともに、カラーフォトレジストの机械的強度を提供し、溶剤は塗布及び成膜の性質を決め、他の添加剤はカラーフォトレジストを理想的なニュートン流体に達させる。当該実施例では、例えば、青色光ディバイスの放射スペクトルの範囲が400nm〜500nmであり、ピーク波長が460nmであると、光を波長域範囲が440〜500nmである青色フォトレジストを選択的に透過させることにより、その放射スペクトルを調整して有害な短波を濾過できる。 Next, the production of blue photoresist can employ a pigment dispersion method similar to the semiconductor yellow light lithography process. First, a pigment-dispersed color photoresist is applied to a glass panel, a photoresist pre-bake (Pre-bake), The blue photoresist was produced through process flows such as exposure alignment (Aligned), development (Developed), photoresist stripping (Stripping), and post-bake. The blue photoresist (Photo Resist) used in this method is a kind of photosensitive material widely used in the lithography process of semiconductor and TFT-LCD panel production line, the main components are photoresist pigment, resin, solvent and other additives In which the resin contributes to pigment dispersion and adhesion to the glass panel, and provides the mechanical strength of the color photoresist, the solvent determines the properties of coating and film formation, and the other additives are colored. Let the photoresist reach the ideal Newtonian fluid. In this embodiment, for example, when the emission spectrum range of the blue light device is 400 nm to 500 nm and the peak wavelength is 460 nm, the light is selectively transmitted through the blue photoresist having the wavelength range of 440 to 500 nm. By adjusting the radiation spectrum, harmful short waves can be filtered.
また、図2を参照し、同図は本発明に係る表示パネルの第二の好ましい実施形態の構造模式図であり、その構造は前記第一の好ましい実施例とほぼ同じであり、区別は、バンドパス光濾過層21をガラスパネルの表面に直接に製作し、且つその面積が当該青色発光材料321より大きいことにある。具体的実施方法は第一の好ましい実施例と同じである。
Further, referring to FIG. 2, this figure is a structural schematic diagram of the second preferred embodiment of the display panel according to the present invention, and its structure is substantially the same as the first preferred example. The band-pass
更に、LCD表示パネルに適用される時、同様に前記方法を利用してLCD表示パネルのガラスパネルにバンドパス光濾過層を製作し、人の目に有害な特定の波長域の青色光を濾過する効果を奏することができる。 In addition, when applied to LCD display panels, a bandpass light filtering layer is produced on the glass panel of the LCD display panel using the same method, and blue light in a specific wavelength range harmful to human eyes is filtered. The effect to do can be show | played.
以上、添付図面と実施例を結合して本発明について詳細に説明したが、当該技術分野の普通の当業者は前記説明によって本発明に対して様々な変形を行うことができる。したがって、実施例における細部は本発明に対して限定しておらず、本発明は添付される特許請求の範囲によって限定される範囲を本発明の請求の範囲とする。 Although the present invention has been described in detail with reference to the accompanying drawings and embodiments, those skilled in the art can make various modifications to the present invention according to the above description. Accordingly, the details in the embodiments are not limited to the present invention, and the scope of the present invention is defined by the scope of the appended claims.
10 : ガラス基板
20 : ガラスパネル
21 : 光濾過層
30 : 発光ユニット
31 : 薄膜トランジスター
32 : 発光構造層
321 : 青色発光材料
10: Glass substrate
20: Glass panel
21: Light filtration layer
30: Light emitting unit
31: Thin film transistor
32: Light-emitting structure layer
321: Blue light emitting material
Claims (4)
前記バンドパス光濾過層はガラスパネルに蒸着又はスパッタリングされる多層媒体膜であり、
前記バンドパス光濾過層はガラスパネルにスピン塗布される青色フォトレジストであり、
前記濾過される青色光の波長域は≦435nmであることを特徴とする請求項1に記載の表示パネル。 The light filtration layer is a bandpass light filtration layer produced on the front or back surface of the glass panel,
The bandpass light filtration layer is a multilayer medium film deposited or sputtered on a glass panel,
The bandpass light filtration layer is a blue photoresist that is spin-coated on a glass panel;
2. The display panel according to claim 1, wherein a wavelength range of the blue light to be filtered is ≦ 435 nm.
前記ガラスパネルに多層媒体膜を蒸着又はスパッタリングすることにより前記バンドパス光濾過層を形成し、
前記ガラスパネルに青色フォトレジストをスピン塗布することにより前記バンドパス光濾過層を形成し、
前記光濾過層により波長域≦435nmの青色光を濾過することを特徴とする請求項3に記載の製造方法。 By producing a bandpass light filtration layer on the front or back surface of the glass panel of the display panel, the blue light having a wavelength within a predetermined wavelength range is filtered,
Forming the bandpass light filtration layer by depositing or sputtering a multilayer medium film on the glass panel,
Forming the bandpass light filtration layer by spin coating a blue photoresist on the glass panel,
4. The production method according to claim 3, wherein blue light having a wavelength region ≦ 435 nm is filtered by the light filtration layer.
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| CN105182595B (en) * | 2015-08-28 | 2019-10-18 | 京东方科技集团股份有限公司 | Display base plate, display device and preparation method thereof |
| WO2017113042A1 (en) * | 2015-12-31 | 2017-07-06 | 林伯刚 | Blue light harm-reducing device and method thereof |
| CN108663853B (en) * | 2018-04-25 | 2022-03-25 | 昆山龙腾光电股份有限公司 | Liquid crystal display panel, liquid crystal display device and manufacturing method of liquid crystal display panel |
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