TWI711853B - 液晶顯示裝置 - Google Patents

液晶顯示裝置 Download PDF

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TWI711853B
TWI711853B TW108138736A TW108138736A TWI711853B TW I711853 B TWI711853 B TW I711853B TW 108138736 A TW108138736 A TW 108138736A TW 108138736 A TW108138736 A TW 108138736A TW I711853 B TWI711853 B TW I711853B
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liquid crystal
hole
thin film
film transistor
backlight module
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張國洲
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鴻海精密工業股份有限公司
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    • 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
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    • 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
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    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
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    • G02F1/133528—Polarisers
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    • 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
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    • 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
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133605—Direct backlight including specially adapted reflectors
    • 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
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
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    • H04M1/0264—Details of the structure or mounting of specific components for a camera module assembly
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
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    • G02—OPTICS
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    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
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Abstract

一種液晶顯示裝置，其包括背光模組與液晶面板。所述液晶面板包括彩色濾光基板、與彩色濾光基板對置的薄膜電晶體基板、夾設於所述彩色濾光基板與所述薄膜電晶體基板之間的液晶層以及配置於所述薄膜電晶體基板遠離所述液晶層一側的下偏光片，其中下偏光片靠近所述背光模組。所述背光模組中開設有攝像孔，該攝像孔還貫穿下偏光片。所述攝像孔包括孔底壁和孔側壁，孔底壁由薄膜電晶體基板限定形成，所述孔底壁和孔側壁二者相接的區域設置有彈性橡膠體以封堵光線的洩漏。本發明通過彈性橡膠體的設置，封堵光線的洩漏。

Description

液晶顯示裝置
本發明涉及一種液晶顯示裝置，尤其涉及一種高屏占比的全面屏的液晶顯示裝置。
習知的液晶顯示裝置，其通常包括層疊設置的液晶面板和背光模組。以手機為例，高屏占比的全面屏手機開始越來越被消費者所青睞，高屏占比的全面屏設計在傳統的手機外形不變的前提下，加大螢幕占比，減小上下手機邊框，給消費者更好的視覺體驗。
而為了獲得更高的屏占比，本申請的發明人研究了一種液晶顯示裝置的設計為：攝像孔設置于顯示區內，攝像模組設置在液晶面板的顯示區的下方(即，位於液晶面板的與觀察者側相反的背面側)。然而，因背光模組與液晶面板結合的區域通常無法保證百分之百緊密貼合，導致背光模組的光線會通過背光模組與液晶面板二者結合的區域洩漏。
鑒於此，有必要提供一種有效解決上述問題的液晶顯示裝置。
一種液晶顯示裝置，其包括：背光模組， 與背光模組層疊設置的液晶面板，所述液晶面板包括彩色濾光基板、與彩色濾光基板對置的薄膜電晶體基板、夾設於所述彩色濾光基板與所述薄膜電晶體基板之間的液晶層以及配置於所述薄膜電晶體基板遠離所述液晶層一側的下偏光片，其中下偏光片靠近所述背光模組，所述背光模組中開設有攝像孔，該攝像孔還貫穿下偏光片；所述攝像孔包括孔底壁和孔側壁，孔底壁由薄膜電晶體基板限定形成，所述孔底壁和孔側壁二者相接的區域設置有彈性橡膠體以封堵光線的洩漏。
本發明通過彈性橡膠體的設置，封堵光線的洩漏，解決因各部件製造與組裝等公差累積加總造成的光源洩漏缺陷。
100:液晶顯示裝置
101:顯示區
102:攝像區
40:透明蓋板
10:液晶面板
11:上偏光片
111:通孔
12:彩色濾光基板
14:液晶層
13:薄膜電晶體基板
131:透明基底
18:下偏光片
30:背光模組
31:背板
32:反射片
33:導光板
34:光學膜片組
103:攝像孔
60:彈性橡膠體
圖1為本發明較佳實施例的液晶顯示裝置的示意圖。
圖2為沿圖1中的剖面線II-II剖開的剖面示意圖。
圖3為圖2的III部的放大示意圖。
圖4為圖1的液晶顯示裝置的局部仰視示意圖。
附圖中示出了本發明的實施例，本發明可以藉由多種不同形式實現，而並不應解釋為僅局限於這裡所闡述的實施例。相反，提供這些實施例是為了使本發明更為全面和完整的公開，並使本領域的技術人員更充分地瞭解本發明的範圍。
請參閱圖1，本發明較佳實施例的液晶顯示裝置100定義有顯示區101。本實施例中，該液晶顯示裝置100為一全面屏的手機，即整個正面基 本都是顯示區101。所述顯示區101中設置有一攝像區102。所述攝像區102為非顯示區。本實施例中，所述攝像區102為圓形的。
請參閱圖2，所述液晶顯示裝置100包括依次層疊設置的透明蓋板40、液晶面板10以及背光模組30。所述背光模組30對應所述攝像區102的位置開設有攝像孔103。所述攝像孔103中設置有攝像模組(圖未示)。所述液晶面板10對應所述攝像區102的位置為透明的區域，以不影響攝像模組的攝像功能。另外，圖2中省略了液晶顯示裝置100中用以裝設容置液晶面板10和背光模組30的框體。
所述液晶面板10為本領域習知的液晶面板，其包括彩色濾光基板12、與彩色濾光基板12相對設置的薄膜電晶體(TFT)基板13、以及夾設於彩色濾光基板12和TFT基板13之間的液晶層14。所述液晶面板10還包括上偏光片11和下偏光片18，其中上偏光片11層疊在彩色濾光基板12遠離液晶層14的一側，下偏光片18層疊在TFT基板13遠離液晶層14的一側。透明蓋板40設置靠近上偏光片11，下偏光片18靠近所述背光模組30。TFT基板13包括透明基底131及形成在透明基底131上的導電元件(圖未示)，如TFT、資料線、掃描線等等。彩色濾光基板12(或稱為對向基板)包括透明基底(圖未示)及形成在透明基底上的彩色濾光層(圖未示)。
為不影響攝像模組的攝像功能，所述液晶面板10的彩色濾光基板12和TFT基板13對應攝像區102的位置設置為透光的；而上偏光片11和下偏光片18不是透明的，因此，所述上偏光片11對應攝像區102開設有貫穿所述上偏光片11的通孔111，所述攝像孔103還貫穿所述下偏光片18。也即，下偏光片18中的通孔與開設在背光模組30中的孔對齊連通，共同構成攝像孔103。
如圖2所示，所述背光模組30為本領域習知的側入式的背光模組，其包括承載該背光模組30的光學元件的背板31。光學元件包括依次層疊在所述背板31上的反射片32、導光板33、光學膜片組34等元件，其中所述光學膜片組34相對靠近所述液晶面板10。具體的，所述背光模組30的光學膜片組34結合在所述液晶面板10的下偏光片18上。所述背光模組30還包括設置在導光板33一側的光源(圖未示)。所述光學膜片組34至少包括層疊設置的擴散片(圖未示)、增亮膜(圖未示)等。
如圖2所示，所述反射片32、導光板33、光學膜片組34基本均為平板狀。所述攝像孔103貫穿所述反射片32、導光板33、光學膜片組34。所述背板31的主體結構為平板狀，其層疊在反射片32遠離液晶面板10的一側，且所述背板31在攝像區102的位置彎折向液晶面板10的方向延伸至TFT基板13的透明基底131，從而所述背板31的部分限定形成所述攝像孔103的孔側壁。對應攝像區102的透明基底131的部分形成為攝像孔103的孔底壁。
如圖2和圖3所示，本實施例中，所述背板31並未直接接觸TFT基板13的透明基底131，背板31位於攝像區102的端部與透明基底131二者之間具有一小間距。可以理解的，其他實施例中，背板31位於攝像區102的端部也可直接接觸透明基底131。
由於攝像孔103設置在顯示區101中，而背光模組30與液晶面板10的組裝結合無法百分百緊密貼合，因此來自背光模組30的光線容易在背光模組30與液晶面板10二者結合的區域洩露。例如，來自背光模組30的光線可穿過背板31與透明基底131之間的間隙並穿過透明基底131漏出或是直接穿過透明基底131漏出(正面漏光)，來自背光模組30的光線還可穿過背板31與透明基底131之間的間隙朝背光模組30方向洩露(背面漏光)， 因此所述背板31與所述TFT基板13二者相接的區域設置有彈性橡膠體60，也即所述攝像孔103的孔側壁(透明基底131)與其孔底壁(背板31)二者相接的區域設置有彈性橡膠體60。所述彈性橡膠體60位於所述背板31與TFT基板13的透明基底131之間，且圍繞所述攝像孔103的孔底壁的周緣延伸形成為環狀，如圖4所示。所述彈性橡膠體60用以封堵光線的洩漏，其顏色可採用具有遮光能力的顏色，例如黑色等。所述彈性橡膠體60局部覆蓋透明基底131和背板31。
同時由於所述彈性橡膠體60本身柔軟具有彈性，當液晶面板10與背光模組30組裝結合時，可利用所述彈性橡膠體60的彈性壓縮與TFT基板13的透明基底131局部干涉，進而使液晶面板10與背光模組30結合緊密，以進一步防止漏光的可能性。所述彈性橡膠體60可填充背板31與透明基底131之間的間隙，同時使背板31與透明基底131的結合更加穩固。所述彈性橡膠體60可為黑色的矽膠。
本實施例中，所述背板31為金屬材質。進一步的，所述彈性橡膠體60還延伸到背板31與孔側壁相對的表面。由此可避免光線入射在背板31(金屬)上而造成光線的反射。
所述彈性橡膠體60可與所述背板31模內注塑一體形成，或是作為單獨的元件套設在所述背板31上。
組裝所述液晶顯示裝置100時，需預先分別裝配好液晶面板10和背光模組30，在背光模組30的背板31上設置形成彈性橡膠體60後，然後將背光模組30與液晶面板10組裝貼合，由此可遮蔽背光模組30與液晶面板10的組裝貼合偏位元公差所造成的局部漏光。
以上實施例僅用以說明本發明的技術方案而非限制，圖示中出現的上、下、左及右方向僅為了方便理解，儘管參照較佳實施例對本發明進 行了詳細說明，本領域的普通技術人員應當理解，可以對本發明的技術方案進行修改或等同替換，而不脫離本發明技術方案的精神和範圍。
102:攝像區
40:透明蓋板
10:液晶面板
11:上偏光片
111:通孔
12:彩色濾光基板
14:液晶層
13:薄膜電晶體基板
131:透明基底
18:下偏光片
30:背光模組
31:背板
32:反射片
33:導光板
34:光學膜片組
103:攝像孔
60:彈性橡膠體

Claims (7)

  1. 一種液晶顯示裝置，其包括：背光模組；與背光模組層疊設置的液晶面板，所述液晶面板包括彩色濾光基板、與彩色濾光基板對置的薄膜電晶體基板、夾設於所述彩色濾光基板與所述薄膜電晶體基板之間的液晶層以及配置於所述薄膜電晶體基板遠離所述液晶層一側的下偏光片，其中下偏光片靠近所述背光模組，所述背光模組中開設有攝像孔，該攝像孔還貫穿下偏光片；其改良在於：所述攝像孔包括孔底壁和孔側壁，孔底壁由薄膜電晶體基板限定形成，所述孔底壁和孔側壁二者相接的區域設置有彈性橡膠體以封堵光線的洩漏；所述背光模組包括用於承載該背光模組的光學元件的背板，所述背板基本呈平板狀，其在攝像孔的位置彎折向液晶面板的方向延伸至薄膜電晶體基板，從而所述背板的部分限定形成所述攝像孔的孔側壁；所述背板為金屬材質，所述彈性橡膠體延伸到背板與孔側壁相對的表面。
  2. 如請求項1所述的液晶顯示裝置，其中：所述彩色濾光基板和所述薄膜電晶體基板正對攝像孔的區域均設置為透光的。
  3. 如請求項2所述的液晶顯示裝置，其中：所述液晶面板還包括層疊在彩色濾光基板遠離薄膜電晶體基板一側的上偏光片，所述上偏光片開設有貫穿所述上偏光片的通孔與攝像孔正對。
  4. 如請求項1所述的液晶顯示裝置，其中：所述彈性橡膠體圍繞所述攝像孔的孔底壁的周緣延伸為環狀，所述彈性橡膠體局部覆蓋薄膜電晶體基板和背板。
  5. 如請求項1所述的液晶顯示裝置，其中：所述光學元件包括依次層疊設置的反射片、導光板、光學膜片組，其中所述光學膜片組相對靠近所述液 晶面板，所述背板層疊在所述反射片遠離液晶面板的一側，所述攝像孔貫穿所述反射片、導光板、光學膜片組。
  6. 如請求項1所述的液晶顯示裝置，其中：背板在攝像孔處的端部與薄膜電晶體基板二者之間具有一間距。
  7. 如請求項1所述的液晶顯示裝置，其中：所述彈性橡膠體為黑色的矽膠。
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